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Solis J, Wilson N, Sam T, Ma TW, Yango A, Fischbach B, Kataria AD. Weight-based vs fixed dosing of darbepoetin alfa for anemia following kidney transplantation. Am J Health Syst Pharm 2023; 80:1542-1549. [PMID: 37471466 DOI: 10.1093/ajhp/zxad163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Indexed: 07/22/2023] Open
Abstract
PURPOSE Post-transplantation anemia (PTA) is common in kidney transplant recipients, with patients frequently treated with erythropoietin-stimulating agents such as darbepoetin alfa. The optimal dosing for darbepoetin alfa remains controversial. METHODS This retrospective cohort study involved kidney transplant recipients who received darbepoetin alfa at 2 clinics. Patients were stratified into 2 groups: those who received a fixed dose of 200 μg and those who received a weight-based dose of 0.45 μg/kg. The dosing interval varied depending on clinical response, clinic visit timing, and frequency allowed by insurance. The primary outcome was achieving a hemoglobin concentration of at least 10 g/dL without blood transfusion by 12 weeks after darbepoetin alfa initiation. RESULTS Of the 110 patients in the study, 45% received weight-based dosing and 55% received fixed dosing. Darbepoetin alfa was initiated significantly earlier after transplantation in the fixed-dose group (median of 14 vs 20 days; P = 0.003). The weight-based group received more doses of darbepoetin alfa (median of 4 vs 2 doses; P = 0.002) and had a significantly lower cumulative exposure to darbepoetin alfa (125 vs 590 μg; P < 0.001). The median time between doses was 9 days (interquartile range, 7-14 days) in the weight-based group and 12 days (7-32 days) in the fixed-dose group (P = 0.04). Patients in the weight-based group more frequently achieved the primary outcome (67.3% vs 47.5%; P = 0.059). There was no significant difference in secondary or safety outcomes between the groups. CONCLUSION Weight-based and fixed dosing approaches for darbepoetin alfa were not different in the achievement of a hemoglobin concentration of at least 10 g/dL without blood transfusion at 12 weeks after darbepoetin alfa initiation, with significantly lower cumulative darbepoetin alfa utilization in the weight-based group. Weight-based dosing of darbepoetin alfa in PTA appears to be safe and effective, with the potential for significant patient and health-system cost savings.
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Affiliation(s)
| | | | - Teena Sam
- Baylor University Medical Center, Dallas, TX, USA
| | - Tsung-Wei Ma
- Baylor Scott & White Research Institute, Baylor Scott & White Health, Dallas, TX, USA
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Rueangsri R, Laisuan W. Epoetin-alfa induced pruritic maculopapular eruption: Case report and literature review. Asian Pac J Allergy Immunol 2023; 41:231-235. [PMID: 32563229 DOI: 10.12932/ap-040719-0592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Erythropoiesis-stimulating agents (ESA) are commonly used in clinical practice to improve anaemia. Despite a number of patients successfully treated without adverse events, the complications have been previously reported. OBJECTIVE To report and review the characteristics and management of ESA hypersensitivities. METHODS Case reports and related articles associated with ESA use, published between January 1999 and December 2018, were retrieved through Electronic databases (MEDLINE® and PubMed®). RESULTS Forty-seven ESA patients with various immediate and delayed hypersensitivity reactions caused by epoetin and pharmaceutical excipients were identified from nineteen studies and one case report in this paper. Fatal hypersensitivity to ESA and ESA-allergic cross-reactivities have been documented. Desensitization or change of EPO molecular structure has been reported as successful methods of re-introducing the drug. CONCLUSIONS ESA hypersensitivity in the various allergic reactions and cross-reactivity have been documented. Desensitization and Epoetin structural changes could be successful methods to re-introduce the drug.
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Affiliation(s)
- Rawi Rueangsri
- Division of Allergy Immunology and Rheumatology, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Wannada Laisuan
- Division of Allergy Immunology and Rheumatology, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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Singh AK, McCausland FR, Claggett BL, Wanner C, Wiecek A, Atkins MB, Carroll K, Perkovic V, McMurray JJV, Wittes J, Snapinn S, Blackorby A, Meadowcroft A, Barker T, DiMino T, Mallett S, Cobitz AR, Solomon SD. Analysis of on-treatment cancer safety events with daprodustat versus conventional erythropoiesis-stimulating agents-post hoc analyses of the ASCEND-ND and ASCEND-D trials. Nephrol Dial Transplant 2023; 38:1890-1897. [PMID: 36565721 PMCID: PMC10387380 DOI: 10.1093/ndt/gfac342] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND The prespecified on-treatment analysis of ASCEND-ND (NCT02876835) raised concerns about a higher relative risk of cancer-related adverse events (AEs) with daprodustat vs darbepoetin in patients with anaemia of CKD. This concern was not observed in dialysis patients in ASCEND-D (NCT02879305). METHODS ASCEND-ND randomized 3872 patients to daprodustat or darbepoetin. ASCEND-D randomized 2964 patients to daprodustat or conventional erythropoiesis-stimulating agents (ESAs). In both studies ESA comparators used different dosing intervals (3/week, 1/week, every 2 or every 4 weeks). The prespecified on-treatment approach examined relative risks for cancer AEs up to the last dose date + 1 day. In these analyses, owing to different dosing intervals between arms, Cox models were used to estimate the daprodustat effect by various follow-up periods (censoring at last dose date, last dose date + dosing intervals, or end of study). RESULTS In ASCEND-ND, the safety of daprodustat vs darbepoetin on cancer-related AEs depended on the duration of follow-up after last dose date: hazard ratio (HR) 1.04 [95% confidence interval (CI) 0.77, 1.40] at end of study [HR 1.12 (95% CI 0.81, 1.56) for last dose date + dosing interval; HR 1.50 (95% CI 1.04, 2.15) for last dose date + 1 day]. In ASCEND-D, no excess risk of cancer-related AEs was observed with any model examined. CONCLUSIONS Prespecified on-treatment analyses for cancer-related AEs appeared to result in biased risk estimates in ASCEND-ND by preferentially under-counting events from patients assigned to darbepoetin. Analyses accounting for longer darbepoetin dosing intervals, or extending follow-up, resulted in attenuation of effect estimates towards neutrality, similar to ASCEND-D, where ESA comparator dosing intervals are closer to daprodustat. TRIAL REGISTRATION The ASCEND-ND trial is registered with ClinicalTrials.gov (NCT02876835); the ASCEND-D trial is registered with ClinicalTrials.gov (NCT02879305).
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Affiliation(s)
- Ajay K Singh
- Renal Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Finnian R McCausland
- Renal Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Brian L Claggett
- Harvard Medical School, Boston, MA, USA
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | | | - Andrzej Wiecek
- Department of Nephrology, Transplantation and Internal Medicine, Medical University of Silesia, Katowice, Poland
| | - Michael B Atkins
- Georgetown-Lombardi Comprehensive Cancer Center, Washington DC, USA
| | | | - Vlado Perkovic
- Faculty of Medicine and Health, University of New South Wales, Sydney, Australia
| | - John J V McMurray
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, Glasgow, University of Glasgow, UK
| | | | | | | | | | | | | | | | | | - Scott D Solomon
- Harvard Medical School, Boston, MA, USA
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
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Singh AK, Carroll K, McMurray JJV, Solomon S, Jha V, Johansen KL, Lopes RD, Macdougall IC, Obrador GT, Waikar SS, Wanner C, Wheeler DC, Więcek A, Blackorby A, Cizman B, Cobitz AR, Davies R, DiMino TL, Kler L, Meadowcroft AM, Taft L, Perkovic V. Daprodustat for the Treatment of Anemia in Patients Not Undergoing Dialysis. N Engl J Med 2021; 385:2313-2324. [PMID: 34739196 DOI: 10.1056/nejmoa2113380] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Daprodustat is an oral hypoxia-inducible factor prolyl hydroxylase inhibitor. In patients with chronic kidney disease (CKD) who are not undergoing dialysis, the efficacy and safety of daprodustat, as compared with the conventional erythropoiesis-stimulating agent darbepoetin alfa, are unknown. METHODS In this randomized, open-label, phase 3 trial with blinded adjudication of cardiovascular outcomes, we compared daprodustat with darbepoetin alfa for the treatment of anemia in patients with CKD who were not undergoing dialysis. The primary outcomes were the mean change in the hemoglobin level from baseline to weeks 28 through 52 and the first occurrence of a major adverse cardiovascular event (MACE; a composite of death from any cause, nonfatal myocardial infarction, or nonfatal stroke). RESULTS Overall, 3872 patients were randomly assigned to receive daprodustat or darbepoetin alfa. The mean (±SD) baseline hemoglobin levels were similar in the two groups. The mean (±SE) change in the hemoglobin level from baseline to weeks 28 through 52 was 0.74±0.02 g per deciliter in the daprodustat group and 0.66±0.02 g per deciliter in the darbepoetin alfa group (difference, 0.08 g per deciliter; 95% confidence interval [CI], 0.03 to 0.13), which met the prespecified noninferiority margin of -0.75 g per deciliter. During a median follow-up of 1.9 years, a first MACE occurred in 378 of 1937 patients (19.5%) in the daprodustat group and in 371 of 1935 patients (19.2%) in the darbepoetin alfa group (hazard ratio, 1.03; 95% CI, 0.89 to 1.19), which met the prespecified noninferiority margin of 1.25. The percentages of patients with adverse events were similar in the two groups. CONCLUSIONS Among patients with CKD and anemia who were not undergoing dialysis, daprodustat was noninferior to darbepoetin alfa with respect to the change in the hemoglobin level from baseline and with respect to cardiovascular outcomes. (Funded by GlaxoSmithKline; ASCEND-ND ClinicalTrials.gov number, NCT02876835.).
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Affiliation(s)
- Ajay K Singh
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Kevin Carroll
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - John J V McMurray
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Scott Solomon
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Vivekanand Jha
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Kirsten L Johansen
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Renato D Lopes
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Iain C Macdougall
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Gregorio T Obrador
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Sushrut S Waikar
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Christoph Wanner
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - David C Wheeler
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Andrzej Więcek
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Allison Blackorby
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Borut Cizman
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Alexander R Cobitz
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Rich Davies
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Tara L DiMino
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Lata Kler
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Amy M Meadowcroft
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Lin Taft
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
| | - Vlado Perkovic
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), and Boston University School of Medicine and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.), the School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, and GlaxoSmithKline, Brentford (L.K.) - all in the United Kingdom; George Institute for Global Health, New Delhi, and Prasanna School of Public Health, Manipal Academy of Higher Education, Manipal - both in India (V.J.); Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O.); the University of Würzburg, Würzburg, Germany (C.W.); the Medical University of Silesia, Katowice, Poland (A.W.); GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., T.L.D., A.M.M., L.T.); and the University of New South Wales, Sydney (V.P.)
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Singh AK, Carroll K, Perkovic V, Solomon S, Jha V, Johansen KL, Lopes RD, Macdougall IC, Obrador GT, Waikar SS, Wanner C, Wheeler DC, Więcek A, Blackorby A, Cizman B, Cobitz AR, Davies R, Dole J, Kler L, Meadowcroft AM, Zhu X, McMurray JJV. Daprodustat for the Treatment of Anemia in Patients Undergoing Dialysis. N Engl J Med 2021; 385:2325-2335. [PMID: 34739194 DOI: 10.1056/nejmoa2113379] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND Among patients with chronic kidney disease (CKD), the use of recombinant human erythropoietin and its derivatives for the treatment of anemia has been linked to a possibly increased risk of stroke, myocardial infarction, and other adverse events. Several trials have suggested that hypoxia-inducible factor (HIF) prolyl hydroxylase inhibitors (PHIs) are as effective as erythropoiesis-stimulating agents (ESAs) in increasing hemoglobin levels. METHODS In this randomized, open-label, phase 3 trial, we assigned patients with CKD who were undergoing dialysis and who had a hemoglobin level of 8.0 to 11.5 g per deciliter to receive an oral HIF-PHI (daprodustat) or an injectable ESA (epoetin alfa if they were receiving hemodialysis or darbepoetin alfa if they were receiving peritoneal dialysis). The two primary outcomes were the mean change in the hemoglobin level from baseline to weeks 28 through 52 (noninferiority margin, -0.75 g per deciliter) and the first occurrence of a major adverse cardiovascular event (a composite of death from any cause, nonfatal myocardial infarction, or nonfatal stroke), with a noninferiority margin of 1.25. RESULTS A total of 2964 patients underwent randomization. The mean (±SD) baseline hemoglobin level was 10.4±1.0 g per deciliter overall. The mean (±SE) change in the hemoglobin level from baseline to weeks 28 through 52 was 0.28±0.02 g per deciliter in the daprodustat group and 0.10±0.02 g per deciliter in the ESA group (difference, 0.18 g per deciliter; 95% confidence interval [CI], 0.12 to 0.24), which met the prespecified noninferiority margin of -0.75 g per deciliter. During a median follow-up of 2.5 years, a major adverse cardiovascular event occurred in 374 of 1487 patients (25.2%) in the daprodustat group and in 394 of 1477 (26.7%) in the ESA group (hazard ratio, 0.93; 95% CI, 0.81 to 1.07), which also met the prespecified noninferiority margin for daprodustat. The percentages of patients with other adverse events were similar in the two groups. CONCLUSIONS Among patients with CKD undergoing dialysis, daprodustat was noninferior to ESAs regarding the change in the hemoglobin level from baseline and cardiovascular outcomes. (Funded by GlaxoSmithKline; ASCEND-D ClinicalTrials.gov number, NCT02879305.).
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Affiliation(s)
- Ajay K Singh
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Kevin Carroll
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Vlado Perkovic
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Scott Solomon
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Vivekanand Jha
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Kirsten L Johansen
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Renato D Lopes
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Iain C Macdougall
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Gregorio T Obrador
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Sushrut S Waikar
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Christoph Wanner
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - David C Wheeler
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Andrzej Więcek
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Allison Blackorby
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Borut Cizman
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Alexander R Cobitz
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Rich Davies
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Jo Dole
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Lata Kler
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Amy M Meadowcroft
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - Xinyi Zhu
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
| | - John J V McMurray
- From Brigham and Women's Hospital (A.K.S., S.S.), Harvard Medical School (A.K.S., S.S.), Boston University School of Medicine (S.S.W.), and Boston Medical Center (S.S.W.) - all in Boston; KJC Statistics, Cheadle (K.C.), School of Public Health, Imperial College London (V.J.), King's College Hospital (I.C.M.), and the Department of Renal Medicine, University College London (D.C.W.), London, GlaxoSmithKline, Brentford (L.K. X.Z.), and the British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow (J.J.V.M.) - all in the United Kingdom; University of New South Wales, Sydney (V.P.); George Institute for Global Health, New Delhi (V.J.) and Prasanna School of Public Health (V.J.), Manipal Academy of Higher Education, Manipal (V.J.) - both in India; Hennepin Healthcare, University of Minnesota, Minneapolis (K.L.J.); Duke University Medical Center, Duke Clinical Research Institute, Durham, NC (R.D.L.); Universidad Panamericana School of Medicine, Mexico City (G.T.O); University of Würzburg, Würzburg, Germany (C.W.); Medical University of Silesia, Katowice, Poland (A.W.); and GlaxoSmithKline, Collegeville, PA (A.B., B.C., A.R.C., R.D., J.D., A.M.M.)
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Chertow GM, Pergola PE, Farag YMK, Agarwal R, Arnold S, Bako G, Block GA, Burke S, Castillo FP, Jardine AG, Khawaja Z, Koury MJ, Lewis EF, Lin T, Luo W, Maroni BJ, Matsushita K, McCullough PA, Parfrey PS, Roy-Chaudhury P, Sarnak MJ, Sharma A, Spinowitz B, Tseng C, Tumlin J, Vargo DL, Walters KA, Winkelmayer WC, Wittes J, Eckardt KU. Vadadustat in Patients with Anemia and Non-Dialysis-Dependent CKD. N Engl J Med 2021; 384:1589-1600. [PMID: 33913637 DOI: 10.1056/nejmoa2035938] [Citation(s) in RCA: 115] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Vadadustat is an oral hypoxia-inducible factor (HIF) prolyl hydroxylase inhibitor, a class of drugs that stabilize HIF and stimulate erythropoietin and red-cell production. METHODS In two phase 3, randomized, open-label, active-controlled, noninferiority trials, we compared vadadustat with the erythropoiesis-stimulating agent (ESA) darbepoetin alfa in patients with non-dialysis-dependent chronic kidney disease (NDD-CKD) not previously treated with an ESA who had a hemoglobin concentration of less than 10 g per deciliter and in patients with ESA-treated NDD-CKD and a hemoglobin concentration of 8 to 11 g per deciliter (in the United States) or 9 to 12 g per deciliter (in other countries). The primary safety end point, assessed in a time-to-event analysis, was the first major adverse cardiovascular event (MACE; a composite of death from any cause, nonfatal myocardial infarction, or nonfatal stroke), pooled across the two trials. Secondary safety end points included expanded MACE (MACE plus hospitalization for either heart failure or a thromboembolic event). The primary and key secondary efficacy end points in each trial were the mean change in hemoglobin concentration from baseline during two evaluation periods: weeks 24 through 36 and weeks 40 through 52. RESULTS A total of 1751 patients with ESA-untreated NDD-CKD and 1725 with ESA-treated NDD-CKD underwent randomization in the two trials. In the pooled analysis, in which 1739 patients received vadadustat and 1732 received darbepoetin alfa, the hazard ratio for MACE was 1.17 (95% confidence interval [CI], 1.01 to 1.36), which did not meet the prespecified noninferiority margin of 1.25. The mean between-group differences in the change in the hemoglobin concentration at weeks 24 through 36 were 0.05 g per deciliter (95% CI, -0.04 to 0.15) in the trial involving ESA-untreated patients and -0.01 g per deciliter (95% CI, -0.09 to 0.07) in the trial involving ESA-treated patients, which met the prespecified noninferiority margin of -0.75 g per deciliter. CONCLUSIONS Vadadustat, as compared with darbepoetin alfa, met the prespecified noninferiority criterion for hematologic efficacy but not the prespecified noninferiority criterion for cardiovascular safety in patients with NDD-CKD. (Funded by Akebia Therapeutics and Otsuka Pharmaceutical; PRO2TECT ClinicalTrials.gov numbers, NCT02648347 and NCT02680574.).
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Affiliation(s)
- Glenn M Chertow
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Pablo E Pergola
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Youssef M K Farag
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Rajiv Agarwal
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Susan Arnold
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Gabriel Bako
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Geoffrey A Block
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Steven Burke
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Fausto P Castillo
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Alan G Jardine
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Zeeshan Khawaja
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Mark J Koury
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Eldrin F Lewis
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Tim Lin
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Wenli Luo
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Bradley J Maroni
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Kunihiro Matsushita
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Peter A McCullough
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Patrick S Parfrey
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Prabir Roy-Chaudhury
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Mark J Sarnak
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Amit Sharma
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Bruce Spinowitz
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Carol Tseng
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - James Tumlin
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Dennis L Vargo
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Kimberly A Walters
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Wolfgang C Winkelmayer
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Janet Wittes
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
| | - Kai-Uwe Eckardt
- From Stanford University School of Medicine, Palo Alto, CA (G.M.C., E.F.L.); Renal Associates, San Antonio (P.E.P.), U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Akebia Therapeutics, Cambridge (Y.M.K.F., S.B., Z.K., W.L., B.J.M., A.S., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Excellentis Clinical Trial Consultants, George, South Africa (S.A.); Bihor County Hospital Oradea, Oradea, Romania (G.B.); Qway Research, Hialeah, FL (F.P.C.); the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.G.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); Firma Clinical Research, Hunt Valley (T.L.), and the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.) - both in Maryland; the Department of Medicine, Memorial University of Newfoundland, St. John's, Canada (P.S.P.); the Division of Nephrology and Hypertension, University of North Carolina Kidney Center, Chapel Hill, and the W.G. (Bill) Hefner Veterans Affairs Medical Center, Salisbury - both in North Carolina (P.R.-C.); the Division of Nephrology, New York-Presbyterian Queens, Flushing (B.S.); Firma Clinical Research, Chicago (C.T.); Emory University School of Medicine, Atlanta (J.T.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.)
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Eckardt KU, Agarwal R, Aswad A, Awad A, Block GA, Bacci MR, Farag YMK, Fishbane S, Hubert H, Jardine A, Khawaja Z, Koury MJ, Maroni BJ, Matsushita K, McCullough PA, Lewis EF, Luo W, Parfrey PS, Pergola P, Sarnak MJ, Spinowitz B, Tumlin J, Vargo DL, Walters KA, Winkelmayer WC, Wittes J, Zwiech R, Chertow GM. Safety and Efficacy of Vadadustat for Anemia in Patients Undergoing Dialysis. N Engl J Med 2021; 384:1601-1612. [PMID: 33913638 DOI: 10.1056/nejmoa2025956] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Vadadustat is an oral hypoxia-inducible factor prolyl hydroxylase inhibitor, a class of compounds that stimulate endogenous erythropoietin production. METHODS We conducted two randomized, open-label, noninferiority phase 3 trials to evaluate the safety and efficacy of vadadustat, as compared with darbepoetin alfa, in patients with anemia and incident or prevalent dialysis-dependent chronic kidney disease (DD-CKD). The primary safety end point, assessed in a time-to-event analysis, was the first occurrence of a major adverse cardiovascular event (MACE, a composite of death from any cause, a nonfatal myocardial infarction, or a nonfatal stroke), pooled across the trials (noninferiority margin, 1.25). A key secondary safety end point was the first occurrence of a MACE plus hospitalization for either heart failure or a thromboembolic event. The primary and key secondary efficacy end points were the mean change in hemoglobin from baseline to weeks 24 to 36 and from baseline to weeks 40 to 52, respectively, in each trial (noninferiority margin, -0.75 g per deciliter). RESULTS A total of 3923 patients were randomly assigned in a 1:1 ratio to receive vadadustat or darbepoetin alfa: 369 in the incident DD-CKD trial and 3554 in the prevalent DD-CKD trial. In the pooled analysis, a first MACE occurred in 355 patients (18.2%) in the vadadustat group and in 377 patients (19.3%) in the darbepoetin alfa group (hazard ratio, 0.96; 95% confidence interval [CI], 0.83 to 1.11). The mean differences between the groups in the change in hemoglobin concentration were -0.31 g per deciliter (95% CI, -0.53 to -0.10) at weeks 24 to 36 and -0.07 g per deciliter (95% CI, -0.34 to 0.19) at weeks 40 to 52 in the incident DD-CKD trial and -0.17 g per deciliter (95% CI, -0.23 to -0.10) and -0.18 g per deciliter (95% CI, -0.25 to -0.12), respectively, in the prevalent DD-CKD trial. The incidence of serious adverse events in the vadadustat group was 49.7% in the incident DD-CKD trial and 55.0% in the prevalent DD-CKD trial, and the incidences in the darbepoetin alfa group were 56.5% and 58.3%, respectively. CONCLUSIONS Among patients with anemia and CKD who were undergoing dialysis, vadadustat was noninferior to darbepoetin alfa with respect to cardiovascular safety and correction and maintenance of hemoglobin concentrations. (Funded by Akebia Therapeutics and Otsuka Pharmaceutical; INNO2VATE ClinicalTrials.gov numbers, NCT02865850 and NCT02892149.).
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Affiliation(s)
- Kai-Uwe Eckardt
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Rajiv Agarwal
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Ahmad Aswad
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Ahmed Awad
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Geoffrey A Block
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Marcelo R Bacci
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Youssef M K Farag
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Steven Fishbane
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Harold Hubert
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Alan Jardine
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Zeeshan Khawaja
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Mark J Koury
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Bradley J Maroni
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Kunihiro Matsushita
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Peter A McCullough
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Eldrin F Lewis
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Wenli Luo
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Patrick S Parfrey
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Pablo Pergola
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Mark J Sarnak
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Bruce Spinowitz
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - James Tumlin
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Dennis L Vargo
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Kimberly A Walters
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Wolfgang C Winkelmayer
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Janet Wittes
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Rafal Zwiech
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
| | - Glenn M Chertow
- From the Department of Nephrology and Medical Intensive Care, Charité-Universitätsmedizin Berlin, Berlin (K.-U.E.); the Department of Medicine, Division of Nephrology, Indiana University School of Medicine, Indianapolis (R.A.); Gonzalez M.D. and Aswad M.D. Health Care Services, Miami (A. Aswad); Clinical Research Consultants, Kansas City, MO (A. Awad); U.S. Renal Care, Plano (G.A.B.), Baylor University Medical Center, Baylor Heart and Vascular Hospital, Baylor Heart and Vascular Institute, Dallas (P.A.M.), Renal Associates, Division of Nephrology, University of Texas Health Science Center at San Antonio, San Antonio (P.P.), and the Section of Nephrology, Baylor College of Medicine, Houston (W.C.W.) - all in Texas; Praxis Medical Research, and the Department of Medicine, Division of General Practice, Faculdade de Medicina do ABC, São Paulo (M.R.B.); Akebia Therapeutics, Cambridge (Y.M.K.F., Z.K., B.J.M., W.L., D.L.V.), and the Division of Nephrology, Tufts Medical Center, Tufts University School of Medicine, Boston (M.J.S.) - both in Massachusetts; the Division of Nephrology, Department of Medicine, Hofstra Northwell School of Medicine, Great Neck (S.F.), and the Division of Nephrology, New York Presbyterian, Queens (B.S.) - both in New York; Nephrology Associates, Augusta (H.H.), and Emory University School of Medicine, Atlanta (J.T.) - both in Georgia; the Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, United Kingdom (A.J.); the Department of Medicine, Vanderbilt University Medical Center, Nashville (M.J.K.); the Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore (K.M.); Stanford University School of Medicine, Palo Alto, CA (E.F.L., G.M.C.); the Department of Medicine, Memorial University, St. John's, NL, Canada (P.S.P.); Statistics Collaborative, Washington, DC (K.A.W., J.W.); and the Department of Kidney Transplantation-Dialysis Department, Barlicki Memorial Teaching Hospital No. 1, Medical University of Lodz, Lodz, Poland (R.Z.)
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Sarpatwari A, He M, Tessema FA, Gagne JJ, Kesselheim AS. Changes in Erythropoiesis Stimulating Agent Use Under a Risk Evaluation and Mitigation Strategy (REMS) Program. Drug Saf 2020; 44:327-335. [PMID: 33206339 DOI: 10.1007/s40264-020-01017-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/21/2020] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Risk evaluation and mitigation strategy (REMS) programs are intended to improve safe use of US Food and Drug Administration-approved drugs. However, controversy exists over whether they consistently accomplish this goal. OBJECTIVE We aimed to assess how initiation of the erythropoiesis stimulating agents (ESAs) darbepoetin alfa and epoetin alfa changed following implementation and enforcement (following a 1-year post-implementation grace period) of a prominent REMS program warning physicians against use in cancer patients with hemoglobin above 10 g/dL. METHODS Using claims data from a large US commercial insurance company, we conducted interrupted time-series analyses of darbepoetin alfa and epoetin alfa initiation among adult cancer patients in the 12 months before REMS program implementation, after REMS program implementation, and after REMS program enforcement. We also evaluated differences in inappropriate initiation (hemoglobin tests all above 10 g/dL in the prior month) between the periods. RESULTS In total, we identified 3456 darbepoetin alfa initiators and 2632 epoetin alfa initiators. Over the study period, the monthly number of initiators per 100,000 patients with cancer fell from 119 to 32 for darbepoetin alfa and from 82 to 34 for epoetin alfa. However, non-significant post-REMS program implementation level and slope changes per 100,000 adult patients with cancer were observed for darbepoetin alfa (level 0.03 [95% confidence interval (CI) -14.98 to 15.05]; slope 1.94 [95% CI -0.22 to 4.10]) and epoetin alfa (level -4.10 [95% CI -16.85 to 8.65]; slope -0.52 [95% CI -2.35 to 1.32]). Non-significant post-REMS program enforcement level and slope changes were also seen for both drugs (darbepoetin alfa level 1.58 [95% CI -0.58 to 3.74, slope -0.28 [95% CI -15.29 to 14.73]; epoetin alfa level 1.58 (95% CI -0.26 to 3.42], slope 5.74 [95% CI -7.01 to 18.49]). Finally, non-significant changes in inappropriate darbepoetin alfa (60% vs. 53% vs. 57%, p = 0.68) and epoetin alfa (53% vs. 53% vs. 46%, p = 0.41) initiation were observed between the three study periods. CONCLUSION REMS program implementation and enforcement were not associated with significant changes in ESA initiation, adding to concerns over the degree to which certain REMS programs enhance patient safety.
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Affiliation(s)
- Ameet Sarpatwari
- Program On Regulation, Therapeutics, And Law (PORTAL), Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, 1620 Tremont St., Suite 3030, Boston, MA, 02120, USA.
| | - Mengdong He
- Program On Regulation, Therapeutics, And Law (PORTAL), Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, 1620 Tremont St., Suite 3030, Boston, MA, 02120, USA
| | - Frazer A Tessema
- Program On Regulation, Therapeutics, And Law (PORTAL), Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, 1620 Tremont St., Suite 3030, Boston, MA, 02120, USA
| | - Joshua J Gagne
- Program On Regulation, Therapeutics, And Law (PORTAL), Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, 1620 Tremont St., Suite 3030, Boston, MA, 02120, USA
| | - Aaron S Kesselheim
- Program On Regulation, Therapeutics, And Law (PORTAL), Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, 1620 Tremont St., Suite 3030, Boston, MA, 02120, USA
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Lee JH, Ha Chung B, Joo KW, Shin SK, Kim YL, Na KY, Do JY, Park SK, Shin BC, Lee JS, Kim YW, Kim SW, Lee KW, Kang GW, An WS, Shin GT, Han S, Yang CW. Efficacy and safety of CKD-11101 (darbepoetin-alfa proposed biosimilar) compared with NESP in anaemic chronic kidney disease patients not on dialysis. Curr Med Res Opin 2019; 35:1111-1118. [PMID: 30569763 DOI: 10.1080/03007995.2018.1560134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVE To evaluate the efficacy and safety of CKD-11101 (biosimilar darbepoetin-alfa, Chong Kun Dang Pharm.) compared with NESP® in treatment of anaemia in patients with chronic kidney disease not on dialysis. CLINICAL TRIAL REGISTRATION NCT03431623. METHOD In this multi-centre, randomized, double-blind study, patients were treated with CKD-11101 and NESP. The efficacy evaluation period (EEP) was 24 weeks, during which patients were treated every 2 weeks. All patients who completed the EEP were treated with CKD-11101 every 2 weeks for the first 4 weeks and every 4 weeks for the safety evaluation period (SEP), which was from 24 weeks to 52 weeks. The primary efficacy endpoint was the change in mean haemoglobin (Hb) level from baseline to end of EEP and mean dose needed to achieve the target Hb. RESULTS The mean Hb level was increased in both groups during the EEP (both p < 0.001). The difference in mean Hb level change between the two groups was 0.01 g/dL (95% CI = -0.213-0.242), indicating that CKD-11101 was equivalent to NESP. The difference in mean administration dose between groups was -1.40 mcg (95% CI = -6.859-4.059) included in the equivalent range. The incidence of AEs and ADRs was not different between the two groups, and the frequency of ADRs was favourable in both groups (1.2% in CKD-11101 vs 7.7% in the NESP to CKD-11101 conversion group). CONCLUSION CKD-11101 has an equivalent therapeutic effect as NESP in chronic kidney disease patients with renal anaemia. CKD-11101 can be safely used for long-term treatment and in patients converted from NESP.
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Affiliation(s)
- Jong Hoon Lee
- a Division of Nephrology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine , The Catholic University of Korea , Seoul , Korea
| | - Byung Ha Chung
- a Division of Nephrology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine , The Catholic University of Korea , Seoul , Korea
| | - Kwon Wook Joo
- b Division of Nephrology, Department of Internal Medicine , Seoul National University College of Medicine , Seoul , Korea
| | - Sug Kyun Shin
- c Division of Nephrology, Department of Internal Medicine , National Health Insurance Corporation IIsan Hospital , Goyang , Korea
| | - Yong-Lim Kim
- d Division of Nephrology, Department of Internal Medicine , Kyungpook National University School of Medicine , Daegu , Korea
| | - Ki Young Na
- e Division of Nephrology, Department of Internal Medicine , Seoul National University Bundang Hospital , Seongnam , Korea
| | - Jun-Young Do
- f Division of Nephrology, Department of Internal Medicine , Yeungnam University School of Medicine , Daegu , Korea
| | - Su-Kil Park
- g Division of Nephrology, Department of Internal Medicine , Asan Medical Center, University of Ulsan College of Medicine , Seoul , Korea
| | - Byung Chul Shin
- h Division of Nephrology, Department of Internal Medicine, College of Medicine , Chosun University , Gwangju , Korea
| | - Jong Soo Lee
- i Division of Nephrology, Department of Internal Medicine , Ulsan University Hospital , Ulsan , Korea
| | - Yang-Wook Kim
- j Division of Nephrology, Department of Internal Medicine , Inje University, Haeundae Paik Hospital , Busan , Korea
| | - Soo Wan Kim
- k Division of Nephrology, Department of Internal Medicine , Chonnam National University Medical School , Gwangju , Korea
| | - Kang Wook Lee
- l Division of Nephrology, Department of Internal Medicine , Chungnam National University Hospital , Daejeon , South Korea
| | - Gun Woo Kang
- m Division of Nephrology, Department of Internal Medicine , Catholic University of Daegu School of Medicine , Daegu , Korea
| | - Won Suk An
- n Division of Nephrology, Department of Internal Medicine, College of Medicine , Dong-A University , Busan , Korea
| | - Gyu-Tae Shin
- o Division of Nephrology, Department of Nephrology , Ajou University School of Medicine , Suwon , Korea
| | - Seungyeup Han
- p Division of Nephrology, Department of Internal Medicine , Keimyung University School of Medicine , Daegu , Korea
| | - Chul Woo Yang
- a Division of Nephrology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine , The Catholic University of Korea , Seoul , Korea
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Akizawa T, Macdougall IC, Berns JS, Bernhardt T, Staedtler G, Taguchi M, Iekushi K, Krueger T. Long-Term Efficacy and Safety of Molidustat for Anemia in Chronic Kidney Disease: DIALOGUE Extension Studies. Am J Nephrol 2019; 49:271-280. [PMID: 30852574 DOI: 10.1159/000499111] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 02/06/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND Molidustat, a novel hypoxia-inducible factor-prolyl hydroxylase inhibitor, is being investigated for the treatment of anemia associated with chronic kidney disease (CKD). The efficacy and safety of molidustat were recently evaluated in three 16-week phase 2b studies. Here, we report the results of two long-term extension studies of molidustat. METHODS Both studies were parallel-group, open-label, multicenter studies of ≤36 months' duration, in patients with anemia due to CKD, and included an erythropoiesis-stimulating agent as active control. One study enrolled patients not receiving dialysis (n = 164), and the other enrolled patients receiving hemodialysis (n = 88). The primary efficacy variable for both studies was change in blood hemoglobin (Hb) level from baseline to each post-baseline visit, and safety outcomes included adverse events (AEs). RESULTS In patients not on dialysis, the mean ± SD Hb concentrations at baseline were 11.28 ± 0.55 g/dL for molidustat and 11.08 ± 0.51 g/dL for darbepoetin. The mean ± SD blood Hb concentrations throughout the study (defined as mean of each patient's overall study Hb levels) were 11.10 ± 0.508 and 10.98 ± 0.571 g/dL in patients treated with molidustat and darbepoetin, respectively. Similar proportions of patients reported at least one AE in the molidustat (85.6%) and darbepoetin (85.7%) groups. In patients on dialysis, mean ± SD Hb levels at baseline were 10.40 ± 0.70 and 10.52 ± 0.53 g/dL in the molidustat and epoetin groups, respectively. The mean ± SD blood Hb concentrations during the study were 10.37 ± 0.56 g/dL in the molidustat group and 10.52 ± 0.47 g/dL in the epoetin group. Proportions of patients who reported at least one AE were 91.2% in the molidustat group and 93.3% in the epoetin group. CONCLUSIONS Molidustat was well tolerated for up to 36 months and appears to be an effective alternative to darbepoetin and epoetin in the long-term management of anemia associated with CKD.
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Affiliation(s)
- Tadao Akizawa
- Division of Nephrology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan,
| | - Iain C Macdougall
- Department of Renal Medicine, King's College Hospital, London, United Kingdom
| | - Jeffrey S Berns
- Perelman School of Medicine at the University of Pennsylvania, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Thomas Bernhardt
- Research & Development, Pharmaceuticals, Bayer AG, Berlin, Germany
| | - Gerald Staedtler
- Research & Development, Pharmaceuticals, Bayer AG, Berlin, Germany
| | - Megumi Taguchi
- Medical Affairs, Pulmonology & Cardiology, Bayer Yakuhin Ltd., Osaka, Japan
| | - Kazuma Iekushi
- Medical Affairs, Pulmonology & Cardiology, Bayer Yakuhin Ltd., Osaka, Japan
| | - Thilo Krueger
- Research & Development, Pharmaceuticals, Bayer AG, Wuppertal, Germany
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Tanaka T, Nangaku M, Imai E, Tsubakihara Y, Kamai M, Wada M, Asada S, Akizawa T. Safety and effectiveness of long-term use of darbepoetin alfa in non-dialysis patients with chronic kidney disease: a post-marketing surveillance study in Japan. Clin Exp Nephrol 2018; 23:231-243. [PMID: 30182223 PMCID: PMC6510805 DOI: 10.1007/s10157-018-1632-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 08/14/2018] [Indexed: 12/19/2022]
Abstract
Background This post-marketing surveillance (PMS) study evaluated the safety and effectiveness of long-term darbepoetin alfa (darbepoetin) for the treatment of renal anemia in Japanese non-dialysis chronic kidney disease patients. Methods Patients were treated with darbepoetin and followed up for 3 years. Adverse events (AEs), adverse drug reactions (ADRs), hemoglobin (Hb) levels, and renal function were assessed. Patients were stratified by Hb level at the time of occurrence of cardiovascular-related AEs. Statistical analyses were performed to explore factors affecting the occurrence of AEs, cardiovascular-related AEs, and composite renal endpoints. Results In the safety analysis set (5547 patients), AEs and ADRs occurred in 44.4 and 7.1% of patients, respectively. Cardiovascular-related AEs were observed in 12.6% of the overall population. The proportion of patients who presented cardiovascular-related AEs was lower among those with a higher Hb level at the time of occurrence. In the effectiveness analysis set (5024 patients), mean Hb levels remained between 10.0 and 10.6 g/dL (Weeks 4–156). Three months after darbepoetin administration, patients with Hb ≥ 11 g/dL presented fewer composite renal endpoints than those with Hb < 11 g/dL (p = 0.0013), and the cumulative proportion of renal survival was higher in those with Hb ≥ 11 g/dL vs. Hb < 11 g/dL (p < 0.0001). Conclusions This PMS study showed the safety and effectiveness of long-term use of darbepoetin in a large number of patients. Patients with Hb ≥ 11 g/dL presented fewer composite renal endpoints than those with Hb < 11 g/dL, without an increase in the incidence of cardiovascular-related AEs. Electronic supplementary material The online version of this article (10.1007/s10157-018-1632-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Tetsuhiro Tanaka
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Bunkyo-ku, Tokyo, Japan
| | - Masaomi Nangaku
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Bunkyo-ku, Tokyo, Japan
| | - Enyu Imai
- Internal Medicine of Nakayamadera Imai Clinic, Takarazuka, Hyogo, Japan
| | | | - Masatoshi Kamai
- Pharmacovigilance Department, Kyowa Hakko Kirin Co., Ltd., Chiyoda-ku, Tokyo, Japan
| | - Michihito Wada
- Medical Affairs Department, Kyowa Hakko Kirin Co., Ltd., Otemachi Financial City Grand Cube, 1-9-2 Otemachi, Chiyoda-ku, Tokyo, 100-0004, Japan
| | - Shinji Asada
- Medical Affairs Department, Kyowa Hakko Kirin Co., Ltd., Otemachi Financial City Grand Cube, 1-9-2 Otemachi, Chiyoda-ku, Tokyo, 100-0004, Japan.
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Saglimbene VM, Palmer SC, Ruospo M, Natale P, Craig JC, Strippoli GFM. Continuous erythropoiesis receptor activator (CERA) for the anaemia of chronic kidney disease. Cochrane Database Syst Rev 2017; 8:CD009904. [PMID: 28782299 PMCID: PMC6483666 DOI: 10.1002/14651858.cd009904.pub2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Continuous erythropoiesis receptor activator (CERA) is a newer, longer acting ESA which might be preferred to other ESAs (epoetin or darbepoetin) based on its lower frequency of administration. Different dosing requirements and molecular characteristics of CERA compared with other ESAs may lead to different health outcomes (mortality, cardiovascular events, quality of life) in people with anaemia and chronic kidney disease (CKD). OBJECTIVES To assess benefits and harms of CERA compared with other epoetins (darbepoetin alfa and epoetin alfa or beta) or placebo/no treatment or CERA with differing strategy of administration for anaemia in individuals with CKD. SEARCH METHODS We searched the Cochrane Kidney and Transplant Specialised Register to 13 June 2017 through contact with the Information Specialist using search terms relevant to this review. Studies contained in the Specialised Register are identified through search strategies specifically designed for CENTRAL, MEDLINE, and EMBASE; handsearching conference proceedings; and searching the International Clinical Trials Register (ICTRP) Search Portal and ClinicalTrials.gov. SELECTION CRITERIA We included randomised controlled trials (RCTs) of at least three months' duration, comparing CERA with a different ESA (darbepoetin alfa or epoetin alfa or beta) or placebo or standard care or versus CERA with different strategies for administration in people with any stage of CKD. DATA COLLECTION AND ANALYSIS Data were extracted by two independent investigators. We summarised patient-centred outcomes (all-cause and cardiovascular mortality, major adverse cardiovascular events, red cell blood transfusion, iron therapy, cancer, hypertension, seizures, dialysis vascular access thrombosis, drug injection-related events, hyperkalaemia and health-related quality of life and haemoglobin levels) using random effects meta-analysis. Treatment estimates were expressed as risk ratios (RR) and their 95% confidence intervals (CI) for dichotomous outcomes and mean differences or standardized mean difference with 95% CI for continuous outcomes. MAIN RESULTS We included 27 studies involving 5410 adults with CKD. Seven studies (1273 participants) involved people not requiring dialysis, 19 studies (4209 participants) involved people treated with dialysis and one study (71 participants) evaluated treatment in recipients of a kidney transplant. Treatment was given for 24 weeks on average. No data were available for children with CKD. Studies were generally at high or unclear risk of bias from allocation concealment and blinding of outcomes. Only two studies masked participants and investigators to treatment allocation. One study compared CERA with placebo, nine studies CERA with epoetin alfa or beta, nine studies CERA with darbepoetin alfa, and two studies compared CERA with epoetin alfa or beta and darbepoetin alfa. Three studies assessed the effects of differing frequencies of CERA administration and five assessed differing CERA doses.There was low certainty evidence that CERA had little or no effects on mortality (RR 1.07, 95% CI 0.73 to 1.57; RR 1.11, 95% CI 0.75 to 1.65), major adverse cardiovascular events (RR 5.09, 95% CI 0.25 to 105.23; RR 5.56, 95% CI 0.99 to 31.30), hypertension (RR 1.01, 95% CI 0.75 to 1.37; RR 1.00, 95% CI 0.79 to 1.28), need for blood transfusion (RR 1.02, 95% CI 0.72 to 1.46; RR 0.94, 95% CI 0.55 to 1.61), or additional iron therapy (RR 1.03, 95% CI 0.91 to 1.15; RR 0.99, 95% CI 0.95 to 1.03) compared to epoetin alfa/beta or darbepoetin alfa respectively. There was insufficient evidence to compare the effect of CERA to placebo on clinical outcomes. Only one low quality study reported that CERA compared to placebo might lead to little or no difference in the risk of major cardiovascular events (RR 2.97, 95% CI 0.31 to 28.18) and hypertension ((RR 0.73, 95% CI 0.35 to 1.52). There was low certainty evidence that different doses (higher versus lower) or frequency (twice versus once monthly) of CERA administration had little or no different effect on all-cause mortality (RR 3.95, 95% CI 0.17 to 91.61; RR 0.97, 95% CI 0.56 to 1.66), hypertension (RR 0.45, 95% CI 0.08 to 2.52; RR 0.85, 95% CI 0.60 to 1.21), and blood cell transfusions (RR 4.16, 95% CI 0.89 to 19.53; RR 0.91, 95% CI 0.51 to 1.62). No studies reported comparative treatment effects of different ESAs on health-related quality of life. AUTHORS' CONCLUSIONS There is low certainty evidence that CERA has little or no effects on patient-centred outcomes compared with placebo, epoetin alfa or beta or darbepoetin alfa for adults with CKD. The effects of CERA among children who have CKD have not studied in RCTs.
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Affiliation(s)
- Valeria M Saglimbene
- DiaverumMedical Scientific OfficeLundSweden
- The University of SydneySydney School of Public HealthSydneyAustralia
| | - Suetonia C Palmer
- University of Otago ChristchurchDepartment of Medicine2 Riccarton AvePO Box 4345ChristchurchNew Zealand8140
| | | | | | - Jonathan C Craig
- The University of SydneySydney School of Public HealthSydneyAustralia
- The Children's Hospital at WestmeadCochrane Kidney and Transplant, Centre for Kidney ResearchWestmeadNSWAustralia2145
| | - Giovanni FM Strippoli
- DiaverumMedical Scientific OfficeLundSweden
- The University of SydneySydney School of Public HealthSydneyAustralia
- The Children's Hospital at WestmeadCochrane Kidney and Transplant, Centre for Kidney ResearchWestmeadNSWAustralia2145
- University of BariDepartment of Emergency and Organ TransplantationBariItaly
- Diaverum AcademyBariItaly
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Hejaili F, Hafeez E, Bhutto B, Al Turki L, Alsuwida AK, Raza H, Al-Sayyari A. Variables affecting darbepoetin resistance index in hemodialysis patients. Saudi J Kidney Dis Transpl 2017; 28:737-742. [PMID: 28748874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023] Open
Abstract
Erythropoietin resistance index calculation has been used as a tool to evaluate anemia response to erythropoietin therapy. Very little has been reported in its use when using darbepoetin and factors influencing in Arab patients. Darbepoetin resistance index (DRI) was calculated in all our patients using darbepoetin. This was correlated to demographic, clinical, and laboratory parameters. Of the 250 patients, 40.4% were diabetic, 71.1% on hemodialysis, and 28.6% on hemodiafiltration), 23.9% with PermCaths (PC), and 76.1 % with arteriovenous fistula (AVF). The mean DRI was 10.96 ± 12.9 I. Females had 45% higher DRI than males (P = 0.005), and patients with PC had a 66% higher DRI than those with AVF (P = 0.029). Patients with Vitamin D level below the 50th percentile had 55.9% higher DRI than those above it (P = 0.05). DRI was negatively correlated with age (P = 0.018), dialysis vintage (P = 0.039), interdialytic weight gain P = 0.007), Vitamin D level, and serum albumin (P = 0.005) and positively correlate with parathyroid hormone (PTH) level (P = 0.000). No impact was seen by the mode of dialysis, being diabetic, using anti-hypertensive therapy, body mass index, Kt/V, serum iron, total iron binding capacity, transferrin saturation, ferritin, C-reactive protein, Ca, or P. DRI in our Arab patients was comparable to erythropoietin resistance indices reported in other communities. Higher DRI was observed in females, PC users, lower serum albumin, lower Vitamin D, and shorter dialysis vintage. A negative correlation existed between DRI and age, dialysis vintage, interdialytic weight, and serum albumin and a positive correlation with PTH level.
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Affiliation(s)
- Fayez Hejaili
- Associate Professor of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
| | - Ehtsham Hafeez
- Staff Physician, South Center, King Abdullah Charitable Dialysis Program, Riyadh, Saudi Arabia
| | - Burhan Bhutto
- Nephrology Fellow, Department of Medicine, King Abdulaziz Medical City, Riyadh, Saudi Arabia
| | - Lulwa Al Turki
- Nephrology Fellow, Department of Medicine, King Abdulaziz Medical City, Riyadh, Saudi Arabia
| | | | - Hammad Raza
- Medical Director, South Center, King Abdullah Charitable Dialysis Program, Riyadh, Saudi Arabia
| | - Abdulla Al-Sayyari
- Professor of Medicine, Department of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
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Nassif ME, Patel JS, Shuster JE, Raymer DS, Jackups R, Novak E, Gage BF, Prasad S, Silvestry SC, Ewald GA, LaRue SJ. Clinical outcomes with use of erythropoiesis stimulating agents in patients with the HeartMate II left ventricular assist device. JACC Heart Fail 2015; 3:146-53. [PMID: 25660839 PMCID: PMC4766587 DOI: 10.1016/j.jchf.2014.08.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Revised: 08/05/2014] [Accepted: 08/08/2014] [Indexed: 11/22/2022]
Abstract
OBJECTIVES This study evaluated clinical outcomes associated with erythropoiesis stimulating agent (ESA) use in left ventricular assist devices (LVAD)-supported patients. BACKGROUND Use of ESAs in patients with LVADs may minimize blood transfusions and decrease allosensitization. ESAs increase thrombotic events, which is concerning because LVADs are sensitive to pump thrombosis (PT). METHODS We retrospectively reviewed 221 patients at our center who received a HeartMate II (Thoratec Corp., Pleasanton, California) LVAD between January 1, 2009 and June 6, 2013. Patients were divided into those who received ESAs during index admission (n = 121) and those who did not (n = 100). Suspected PT was defined as evidence of thrombus in the LVAD or severe hemolysis (lactate dehydrogenase >1,000 mg/dl or plasma-free hemoglobin >40 mg/dl). Outcomes were compared between cohorts using inverse probability-weighted analyses. RESULTS During a mean follow-up of 14.2 ± 11.9 months, suspected PT occurred in 37 patients (ESA 23%, no ESA 12%; p =0.03). The ESA cohort received ESAs 13.9 ± 60.9 days after LVAD implantation. At 180 days, event-free rates for suspected PT were ESA 78.6% versus no ESA 94.5% (p < 0.001). ESA use had higher rates of suspected PT (hazard ratio [HR]: 2.35; 95% confidence interval [CI]: 1.38 to 4.00; p = 0.002). For every 100-unit increase in cumulative ESA dosage, the hazard of suspected PT increased by 10% (HR: 1.10; 95% CI: 1.04 to 1.16; p < 0.001). After inverse probability weighting, ESA use was associated with a significantly higher rate of all-cause mortality (HR: 1.62; 95% CI: 1.12 to 2.33; p = 0.01). CONCLUSIONS ESA use in LVAD patients is associated with higher rates of suspected PT.
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Affiliation(s)
- Michael E Nassif
- Division of Cardiology, Washington University School of Medicine, St. Louis, Missouri
| | - Jayendrakumar S Patel
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Jerrica E Shuster
- Division of Cardiology, Washington University School of Medicine, St. Louis, Missouri
| | - David S Raymer
- Division of Cardiology, Washington University School of Medicine, St. Louis, Missouri
| | - Ronald Jackups
- Division of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri
| | - Eric Novak
- Division of Cardiology, Washington University School of Medicine, St. Louis, Missouri
| | - Brian F Gage
- Department of Medicine, Washington University School of Medicine, St. Louis, Missouri
| | - Sunil Prasad
- Division of Cardiovascular Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Scott C Silvestry
- Division of Cardiovascular Surgery, Washington University School of Medicine, St. Louis, Missouri
| | - Gregory A Ewald
- Division of Cardiology, Washington University School of Medicine, St. Louis, Missouri
| | - Shane J LaRue
- Division of Cardiology, Washington University School of Medicine, St. Louis, Missouri.
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