1
|
Menn-Josephy H, Hodge LS, Birardi V, Leher H. Efficacy of Voclosporin in Proliferative Lupus Nephritis with High Levels of Proteinuria. Clin J Am Soc Nephrol 2024; 19:309-318. [PMID: 38110196 PMCID: PMC10937024 DOI: 10.2215/cjn.0000000000000297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 12/11/2023] [Indexed: 12/20/2023]
Abstract
BACKGROUND In a phase 3 study of adults with active lupus nephritis, addition of voclosporin to mycophenolate mofetil (MMF) and low-dose glucocorticoids led to significant improvements in the proportion of participants achieving complete and partial renal response as well as sustained reduction in proteinuria. This analysis examined the efficacy and safety of voclosporin in a subgroup of the phase 3 study with proliferative lupus nephritis and high levels of proteinuria. METHODS Participants were randomized to oral voclosporin (23.7 mg twice daily) or placebo for 12 months; all participants received MMF and low-dose glucocorticoids. This analysis includes participants with class III or IV (±class V) lupus nephritis and baseline urine protein-creatinine ratio (UPCR) ≥3 g/g. Efficacy end points included complete renal response (UPCR ≤0.5 g/g with stable eGFR, low-dose glucocorticoids, and no rescue medication), partial renal response (≥50% reduction from baseline UPCR), and UPCR over time. Safety outcomes were also assessed. RESULTS A total of 148 participants were in the voclosporin ( n =76) and control ( n =72) arms. At 12 months, 34% and 11% of participants in the voclosporin and control arms, respectively, achieved a complete renal response (odds ratio, 4.43; 95% confidence interval [CI], 1.78 to >9.99; P = 0.001). A partial renal response was achieved by 65% of the voclosporin arm and 51% of the control arm at 12 months (odds ratio, 1.60; 95% CI, 0.8 to 3.20; P = 0.18). More voclosporin- than control-treated participants achieved UPCR ≤0.5 g/g (51% versus 26%), and voclosporin-treated participants met this end point significantly earlier (hazard ratio, 2.07; 95% CI, 1.19 to 3.60; P = 0.01). The incidence of adverse events was similar between the arms; mean eGFR values remained stable and within normal range in both arms. CONCLUSIONS Addition of voclosporin to MMF and low-dose glucocorticoids resulted in a significantly higher proportion of participants with proliferative lupus nephritis achieving complete and partial renal responses as well as earlier reductions in proteinuria, with no evidence of worsening kidney function.
Collapse
Affiliation(s)
| | - Lucy S. Hodge
- Aurinia Pharmaceuticals Inc., Edmonton, Alberta, Canada
| | | | - Henry Leher
- Aurinia Pharmaceuticals Inc., Edmonton, Alberta, Canada
| |
Collapse
|
2
|
López-Domínguez R, Villatoro-García JA, Marañón C, Goldman D, Petri M, Carmona-Sáez P, Alarcón-Riquelme M, Toro-Dominguez D. Immune and molecular landscape behind non-response to Mycophenolate Mofetil and Azathioprine in lupus nephritis therapy. RESEARCH SQUARE 2024:rs.3.rs-3783877. [PMID: 38260685 PMCID: PMC10802741 DOI: 10.21203/rs.3.rs-3783877/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Lupus nephritis (LN) represents one of the most severe complications of systemic lupus erythematosus, leading to end-stage kidney disease in worst cases. Current first-line therapies for LN, including mycophenolate mofetil (MMF) and azathioprine (AZA), fail to induce long-term remission in 60-70% of the patients, evidencing the urgent need to delve into the molecular knowledge-gap behind the non-response to these therapies. A longitudinal cohort of treated LN patients including clinical, cellular and transcriptomic data, was analyzed. Gene-expression signatures behind non-response to different drugs were revealed by differential expression analysis. Drug-specific non-response mechanisms and cell proportion differences were identified. Blood cell subsets mediating non-response were described using single-cell RNASeq data. We show that AZA and MMF non-response implicates different cells and regulatory functions. Mechanistic models were used to suggest add-on therapies to improve their current performance. Our results provide new insights into the molecular mechanisms associated with treatment failures in LN.
Collapse
Affiliation(s)
- Raúl López-Domínguez
- GENYO. Centre for Genomics and Oncological Research: Pfizer, University of Granada, Andalusian Regional Government, PTS Granada
| | - Juan Antonio Villatoro-García
- GENYO. Centre for Genomics and Oncological Research: Pfizer, University of Granada, Andalusian Regional Government, PTS Granada
| | - Concepción Marañón
- Department of Medical Genomics, Center for Genomics and Oncological Research (GENYO)
| | | | | | - Pedro Carmona-Sáez
- Department of Bioinformatics, Center for Genomics and Oncological Research (GENYO)
| | | | - Daniel Toro-Dominguez
- GENYO. Centre for Genomics and Oncological Research: Pfizer, University of Granada, Andalusian Regional Government, PTS Granada
| |
Collapse
|
3
|
Rovin BH, Ayoub IM, Chan TM, Liu ZH, Mejía-Vilet JM, Floege J. KDIGO 2024 Clinical Practice Guideline for the management of LUPUS NEPHRITIS. Kidney Int 2024; 105:S1-S69. [PMID: 38182286 DOI: 10.1016/j.kint.2023.09.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 09/07/2023] [Indexed: 01/07/2024]
|
4
|
Mejia-Vilet JM, Turner-Stokes T, Houssiau F, Rovin BH. Kidney involvement in systemic lupus erythematosus: From the patient assessment to a tailored treatment. Best Pract Res Clin Rheumatol 2023:101925. [PMID: 38151362 DOI: 10.1016/j.berh.2023.101925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 12/10/2023] [Indexed: 12/29/2023]
Abstract
In the last few years, several studies have provided new evidence for the diagnosis, management, and follow-up of patients with lupus nephritis. Evidence showing dissociation between clinical and histological findings has prompted reevaluation of the role of the kidney biopsy as a tool for diagnosis and follow-up. In therapeutics, four immunosuppressive schemes now have supporting evidence for use as initial therapy. Current challenges include individualized selection of the best immunosuppressive regimen, an unmet need for non-invasive biomarkers of disease activity to inform treatment responses and guide subsequent therapy, holistic patient management in this complex, multisystem disease, and ultimately the development of more targeted therapies directed at specific effector pathways driving glomerular inflammation and damage in order to improve treatment response. In this communication, we review the diagnostic and therapeutic approach to lupus nephritis, as well as evaluation of response to therapy and disease control.
Collapse
Affiliation(s)
- Juan M Mejia-Vilet
- Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Tabitha Turner-Stokes
- Centre for Inflammatory Disease, Department of Immunology and Inflammation, Imperial College London, Hammersmith Campus, London, United Kingdom
| | - Frederic Houssiau
- Pôle de Pathologies Rhumatismales Inflammatoires et Systémiques, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain and Service de Rhumatologie, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Brad H Rovin
- Division of Nephrology, The Ohio State University, Columbus, OH, United States.
| |
Collapse
|
5
|
Balevic SJ, Niu J, Chen J, Green D, McMahon A, Hornik CP, Schanberg L, Glaser R, Gonzalez D, Burckart GJ. Extrapolation of Adult Efficacy Data to Pediatric Systemic Lupus Erythematosus: Evaluating Similarities in Exposure-Response. J Clin Pharmacol 2023; 63:105-118. [PMID: 35968821 PMCID: PMC9771895 DOI: 10.1002/jcph.2139] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 08/07/2022] [Indexed: 12/24/2022]
Abstract
To streamline drug development, the United States Food and Drug Administration (FDA) can consider the extrapolation of adult efficacy data to children when the disease and drug effects are sufficiently similar. This study explored whether the relationship between drug exposure and response for selected drugs in systemic lupus erythematosus (SLE) was sufficiently similar to support a consideration of the extrapolation of adult efficacy data to children of ≥5 years of age. An exposure-response analysis of drugs used to treat SLE was conducted using published exposure versus response and efficacy versus time data. Statistical analyses included noncompartmental analysis of a drug's area under the effect curve and direct Imax pharmacodynamic (PD) modeling. Six drugs were included: azathioprine, belimumab, cyclophosphamide, hydroxychloroquine, mycophenolate/mycophenolic acid, and rituximab. For belimumab, the net change in responders at week 52 (the primary end point) was nearly identical between 1 adult trial and the pediatric trial. For mycophenolate, PD modeling suggested no significant differences in exposure and SLE disease activity between adults and children. For azathioprine, cyclophosphamide, hydroxychloroquine, and rituximab the data were not sufficient to quantitatively characterize the exposure-response relationship, but the clinical or pharmacologic response between children and adults was similar overall. Adult SLE data should be leveraged to guide pediatric drug development programs and identify areas with residual uncertainty regarding the effectiveness or safety of a drug in children. The degree to which efficacy extrapolation can reduce clinical trial requirements in pediatric SLE should be individualized for each new drug product, depending in part on the mechanism of action of the drug and the similarity of disease manifestations in children and adults.
Collapse
Affiliation(s)
| | - Jing Niu
- Office of Clinical Pharmacology, Center for Drug Evaluation and Research (CDER), United States Food and Drug Administration (FDA), Silver Spring, MD
| | - Jianmeng Chen
- Office of Clinical Pharmacology, Center for Drug Evaluation and Research (CDER), United States Food and Drug Administration (FDA), Silver Spring, MD
| | - Dionna Green
- Office of Pediatric Therapeutics, Office of the Commissioner, United States Food and Drug Administration (FDA), Silver Spring, MD
| | - Ann McMahon
- Office of Pediatric Therapeutics, Office of the Commissioner, United States Food and Drug Administration (FDA), Silver Spring, MD
| | | | - Laura Schanberg
- Duke University, Durham, NC
- Duke Clinical Research Institute, Durham, NC
| | - Rachel Glaser
- Division of Rheumatology and Transplant Medicine, Office of Immunology and Inflammation, Office of New Drugs, CDER, FDA, Silver Spring, MD
| | - Daniel Gonzalez
- Division of Pharmacotherapy and Experimental Therapeutics, UNC Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Gilbert J. Burckart
- Office of Clinical Pharmacology, Center for Drug Evaluation and Research (CDER), United States Food and Drug Administration (FDA), Silver Spring, MD
| |
Collapse
|
6
|
Konieczny A, Kasenberg I, Mikołajczak A, Donizy P, Hałoń A, Krajewska M. Baseline Proteinuria and Serum Creatinine Concentration as Clinical Predictors of Complete Renal Response in Patients with Lupus Nephritis: A Single-Center Experience. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:15909. [PMID: 36497983 PMCID: PMC9737901 DOI: 10.3390/ijerph192315909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/21/2022] [Accepted: 11/25/2022] [Indexed: 06/17/2023]
Abstract
The aim of the study was to identify robust predictors of complete renal response (CRR), within 36 months, in a single-center cohort of lupus nephritis (LN) patients. Patients with biopsy-confirmed LN who underwent kidney biopsy between 1 January 2010 and 31 December 2020 were included and followed up for at least 6 months. CRR was defined as a reduction of urinary protein-to-creatinine ratio (UPCR) below 0.50 g/g. We evaluated baseline demographic, laboratory, and biopsy characteristics as potential predictors of CRR, and selected the variables further evaluated with Kaplan−Meier curves and log-rank tests. The traits with a p-value < 0.1 were later tested with both uni- and multivariable Cox proportional hazard models. Our sample consisted of 57 patients (84% females, median age 32 years), out of which 63.2% reached CRR within 36 months. The initial UPCR and estimated glomerular filtration rate (eGFR) were the only variables in multivariable Cox regression model, which were selected through backward elimination, with a significance threshold <0.05 (HR = 0.77, p = 0.01 and HR = 1.02, p = 0.001). Our results confirmed the role of initial UPCR and serum creatinine concentration (sCr) as predictors of CRR in LN.
Collapse
Affiliation(s)
- Andrzej Konieczny
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
| | - Izabela Kasenberg
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
| | - Aleksandra Mikołajczak
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
| | - Piotr Donizy
- Division of Clinical Pathology, Department of Clinical and Experimental Pathology, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Agnieszka Hałoń
- Division of Clinical Pathology, Department of Clinical and Experimental Pathology, Wroclaw Medical University, 50-556 Wroclaw, Poland
| | - Magdalena Krajewska
- Department of Nephrology and Transplantation Medicine, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland
| |
Collapse
|
7
|
Khosroshahi A, Tong D, Bao G, Al-Naqeeb J, Ghosh P, Peeva E, Easley KA, Weiss R, Lim SS. Performance of Modified ALMS and BLISS Criteria with Standard of Care Treatment in Two US Health Care Systems. Arthritis Care Res (Hoboken) 2022. [PMID: 36121035 DOI: 10.1002/acr.25025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 09/02/2022] [Accepted: 09/15/2022] [Indexed: 02/02/2023]
Abstract
OBJECTIVE A retrospective cohort study was undertaken in a predominantly Black population undergoing standard treatment for lupus nephritis (LN) to estimate the incidence of, and risk factors for, complete response (CR) according to modified Aspreva Lupus Management Study (mALMS) and modified Belimumab International Study in Lupus Nephritis (mBLISS) criteria by 12 months. METHODS Patients with biopsy-proven LN class III or IV ± V, urine protein-to-creatinine ratio of ≥1gm/gm and estimated glomerular filtration rate of >50 ml/minute/1.73 m2 at the time of the incident LN flare were included. The clinical, treatment, and laboratory factors associated with CR were identified using multivariable Cox regression. RESULTS Of 173 patients, 86.1% were women, 77.5% were Black, and over half (59.5%) had non-commercial insurance. By 12 months, 20.6% (95% confidence interval (95% CI) 14.6-28.6%) achieved mALMS CR and 33.7% (95% CI 26.4-42.4%) achieved mBLISS CR. Factors associated with mBLISS CR were commercial insurance (adjusted CR ratio = 3.5 [95% CI 1.9-6.7]; P < 0.001), albumin (adjusted CR ratio = 1.8 per 1 gm/dl increase in albumin; P = 0.02), and low C4 (adjusted CR ratio = 2.6; P = 0.03). Cumulative incidence of end-stage renal disease (ESRD) at 3 years was 23.1% (95% CI 15.7-31.3%) and 6.1% (95% CI 2.8-11.1%) for death. Patients with non-commercial insurance were more likely to develop ESRD, with cumulative incidence of 30.4% (95% CI 19.6-41.9%) compared to 12.7% (95% CI 5.0-24.2%) for patients with commercial insurance (P = 0.024). CONCLUSION In a primarily Black, uninsured LN population, despite achieving similar CR rates at 12 months, the incidence of ESRD and death exceeded those observed in controlled clinical trials with placebo arms.
Collapse
|
8
|
Arora S, Rovin BH. Expert Perspective: An Approach to Refractory Lupus Nephritis. Arthritis Rheumatol 2022; 74:915-926. [PMID: 35166048 DOI: 10.1002/art.42092] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/24/2022] [Accepted: 02/09/2022] [Indexed: 11/06/2022]
Affiliation(s)
| | - Brad H Rovin
- The Ohio State University Wexner Medical Center, Columbus, OH
| |
Collapse
|
9
|
Choi SJ, Ahn SM, Oh JS, Hong S, Lee CK, Yoo B, Kim YG. Initial Preserved Renal Function as a Predictor of Favorable Renal Response to Rituximab in Refractory or Relapsing Lupus Nephritis: A Single-center Cohort Study in Korea. JOURNAL OF RHEUMATIC DISEASES 2022; 29:22-32. [PMID: 37476702 PMCID: PMC10324915 DOI: 10.4078/jrd.2022.29.1.22] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/22/2021] [Accepted: 08/13/2021] [Indexed: 07/22/2023]
Abstract
OBJECTIVE Previous studies investigating the beneficial effect of rituximab on lupus nephritis (LN) reported controversial results There have been few reports of renal response to rituximab according to renal function We investigated the efficacy of rituximab in refractory/relapsing LN and the role of renal function as a predictor of renal response. METHODS From 2016 to 2019, we retrospectively reviewed 22 patients with refractory/relapsing LN receiving rituximab Renal responses (complete and partial) at 6 and 12 months were compared between normal (glomerular filtration rate [GFR]≥90 mL/min/173 m2, n=11) and decreased (GFR<90 mL/min/173 m2, n=11) GFR groups Multivariate Cox regression analysis was used to assess predictors of renal response. RESULTS At baseline, the decreased GFR group had a higher urine proteinuria to creatinine ratio (p=0008) and proportion of refractory LN (p=0010) and previous cyclophosphamide therapy (p=0035) than the normal GFR group The overall renal response rate was 455% (10 patients) at 6 months and 545% (12 patients) at 12 months Renal response rates were higher in the normal GFR group (818% and 909% at 6 and 12 months, respectively) than in the decreased GFR group (91% and 182% at 6 and 12 months, respectively; p<0001) Normal GFR and anti-La were associated with renal response to rituximab, with hazard ratios of 9256 (p=0008) and 5478 (p=0041), respectively. CONCLUSION Rituximab is an effective therapy for refractory/relapsing LN, particularly in patients with preserved renal function.
Collapse
Affiliation(s)
- Su Jin Choi
- Department of Rheumatology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- Department of Rheumatology, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - Soo Min Ahn
- Department of Rheumatology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ji Seon Oh
- Department of Information Medicine, Asan Medical Center, Seoul, Korea
| | - Seokchan Hong
- Department of Rheumatology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Chang-Keun Lee
- Department of Rheumatology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Bin Yoo
- Department of Rheumatology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Yong-Gil Kim
- Department of Rheumatology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| |
Collapse
|
10
|
Cunha C, Alexander S, Ashby D, Lee J, Chusney G, Cairns TD, Lightstone L. Hydroxycloroquine blood concentration in lupus nephritis: a determinant of disease outcome? Nephrol Dial Transplant 2019; 33:1604-1610. [PMID: 29186572 DOI: 10.1093/ndt/gfx318] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 09/25/2017] [Indexed: 12/13/2022] Open
Abstract
Background Hydroxychloroquine (HCQ) is a recommended drug in systemic lupus erythematosus (SLE). It has a long terminal half-life, making it an attractive target for therapeutic drug monitoring. The aim of this study was to establish a relationship between blood HCQ concentration and lupus nephritis activity. Methods We conducted a retrospective observational study with data collected from clinical and laboratory records. Inclusion criteria were patients followed in the lupus clinic with biopsy-proven International Society of Nephrology/Renal Pathology Society Classes III, IV or V lupus nephritis on HCQ for at least 3 months (200-400 mg daily) and with HCQ levels measured during treatment. Exclusion criteria were patients on renal replacement therapy at baseline or patients lost to follow-up. Results In 171 patients, the HCQ level was measured in 1282 samples. The mean HCQ blood level was 0.75±0.54mg/L and it was bimodally distributed. An HCQ level <0.20 mg/L [232 samples (18.1%)] appeared to define a distinct group of abnormally low HCQ levels. For patients in complete or partial remission at baseline compared with those remaining in remission, patients with renal flare during follow-up had a significantly lower average HCQ level (0.59 versus 0.81 mg/L; P= 0.005). Our data suggest an HCQ target level to reduce the likelihood of renal flares >0.6 mg/L (600 ng/mL) in those patients with lupus nephritis. Conclusion HCQ level monitoring may offer a new approach to identify non-adherent patients and support them appropriately. We propose an HCQ minimum target level of at least 0.6 mg/L to reduce the renal flare rate, but this will require a prospective study for validation.
Collapse
Affiliation(s)
- Cátia Cunha
- Nephrology Department, Centro Hospitalar de VilaNova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Suceena Alexander
- Nephrology Department, Christian Medical College Vellore, Vellore, Tamilnadu, India
| | - Damien Ashby
- Imperial College Lupus Centre, Imperial College Healthcare NHS Trust, London, UK
| | - Janet Lee
- Leslie Brent Laboratory, Imperial College Healthcare NHS Trust, London, UK
| | - Gary Chusney
- Leslie Brent Laboratory, Imperial College Healthcare NHS Trust, London, UK
| | - Tom D Cairns
- Imperial College Lupus Centre, Imperial College Healthcare NHS Trust, London, UK
| | - Liz Lightstone
- Imperial College Lupus Centre, Imperial College Healthcare NHS Trust, London, UK.,Section of Renal Medicine, Department of Medicine, Imperial College London, UK
| |
Collapse
|
11
|
Nakano M, Kubo K, Shirota Y, Iwasaki Y, Takahashi Y, Igari T, Inaba Y, Takeshima Y, Tateishi S, Yamashita H, Miyazaki M, Sato H, Kanda H, Kaneko H, Ishii T, Fujio K, Tanaka N, Mimori A. Delayed lupus nephritis in the course of systemic lupus erythematosus is associated with a poorer treatment response: a multicentre, retrospective cohort study in Japan. Lupus 2019; 28:1062-1073. [PMID: 31296139 PMCID: PMC6681441 DOI: 10.1177/0961203319860200] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Objective The objective of this study was to investigate possible differences in
treatment responses between two categories for the onset of lupus
nephritis. Methods We performed a multicentre, retrospective cohort study of class III–V lupus
nephritis patients diagnosed between 1997 and 2014. The renal responses to
initial induction therapy were compared between patients who developed lupus
nephritis within one year from diagnosis of systemic lupus erythematosus
(early (E-) LN) and the remainder (delayed (D-) LN) using the Kaplan–Meier
method. We determined the predictors of renal response as well as renal
flares and long-term renal outcomes using multivariate Cox regression
analyses. Results A total of 107 E-LN and 70 D-LN patients were followed up for a median of
10.2 years. Log-rank tests showed a lower cumulative incidence of complete
response in D-LN compared with E-LN patients. Multivariate analysis
identified D-LN (hazard ratio (HR) 0.48, 95% confidence interval (CI)
0.33–0.70), nephrotic syndrome at baseline, and a chronicity index greater
than 2 as negative predictors of complete response. D-LN patients were more
likely to experience renal flares. D-LN (HR 2.54, 95% CI 1.10–5.83) and
decreased renal function were significant predictors of chronic kidney
disease at baseline. Conclusion D-LN was a predictor of poorer treatment outcomes, in addition to renal
histology and severity of nephritis at lupus nephritis onset.
Collapse
Affiliation(s)
- M Nakano
- 1 Division of Rheumatic Diseases, National Center for Global Health and Medicine, Tokyo, Japan.,2 Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - K Kubo
- 2 Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Y Shirota
- 3 Department of Hematology and Rheumatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y Iwasaki
- 2 Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Y Takahashi
- 1 Division of Rheumatic Diseases, National Center for Global Health and Medicine, Tokyo, Japan
| | - T Igari
- 4 Pathology Division of Clinical Laboratory, National Center for Global Health and Medicine, Tokyo, Japan
| | - Y Inaba
- 5 Biostatistics Section, Department of Clinical Research and Informatics, Clinical Science Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - Y Takeshima
- 2 Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,6 Department of Functional Genomics and Immunological Diseases, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - S Tateishi
- 2 Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,7 Department of Immunotherapy Management, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - H Yamashita
- 1 Division of Rheumatic Diseases, National Center for Global Health and Medicine, Tokyo, Japan
| | - M Miyazaki
- 8 Division of Nephrology, Endocrinology and Vascular Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - H Sato
- 9 Department of Clinical Pharmacology and Therapeutics, Tohoku University Graduate School of Pharmaceutical Sciences, Sendai, Japan
| | - H Kanda
- 2 Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.,7 Department of Immunotherapy Management, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - H Kaneko
- 1 Division of Rheumatic Diseases, National Center for Global Health and Medicine, Tokyo, Japan
| | - T Ishii
- 3 Department of Hematology and Rheumatology, Tohoku University Graduate School of Medicine, Sendai, Japan.,10 Clinical Research, Innovation and Educational Center, Tohoku University Hospital, Sendai, Japan
| | - K Fujio
- 2 Department of Allergy and Rheumatology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - N Tanaka
- 5 Biostatistics Section, Department of Clinical Research and Informatics, Clinical Science Center, National Center for Global Health and Medicine, Tokyo, Japan
| | - A Mimori
- 1 Division of Rheumatic Diseases, National Center for Global Health and Medicine, Tokyo, Japan
| |
Collapse
|
12
|
Suttichet TB, Kittanamongkolchai W, Phromjeen C, Anutrakulchai S, Panaput T, Ingsathit A, Kamanamool N, Ophascharoensuk V, Sumethakul V, Avihingsanon Y. Urine TWEAK level as a biomarker for early response to treatment in active lupus nephritis: a prospective multicentre study. Lupus Sci Med 2019; 6:e000298. [PMID: 31168397 PMCID: PMC6519400 DOI: 10.1136/lupus-2018-000298] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 12/22/2018] [Accepted: 12/31/2018] [Indexed: 11/25/2022]
Abstract
Background TNF-like weak inducer of apoptosis (TWEAK) is a proinflammatory molecule that plays a key role in active inflammation of lupus nephritis (LN). Urine TWEAK (uTWEAK) levels were found to be associated with renal disease activity among patients with LN. Here, we determined whether serial measurements of uTWEAK during induction therapy could predict treatment response or not. Methods Spot urine samples were collected from patients with biopsy-proven active LN at time of flare, and 3 and 6 months after flare to assess the uTWEAK levels. All patients received standard immunosuppressive therapy and treatment response was evaluated at 6 months. The performance of uTWEAK as a predictor for treatment response was compared with clinically used biomarkers for patients with LN. Results Among 110 patients with LN, there were 29% complete responders (CR), 34% partial responders (PR) and 37% non-responders (NR). On average, uTWEAK level was consistently low in CR, trended down by 3 months in PR and persistently elevated in NR. uTWEAK levels at month 3 were able to predict complete response at month 6 (OR adjusted for age, sex and creatinine=0.34 [95% CI 0.15 to 0.80], the area under the receiver operating characteristic curve [ROC-AUC]=0.68, p=0.02). The optimal threshold for uTWEAK level at month 3 was 0.46 pg/mgCr, discriminating complete response with 70% sensitivity and 63% specificity. Combining uTWEAK and urine protein at month 3 improved predictive performance for complete response at 6 months (ROC-AUC 0.83, p<0.001). Conclusions In addition to urine protein, uTWEAK level at 3 months after flare can improve the accuracy in predicting complete response at 6 months of induction therapy.
Collapse
Affiliation(s)
- Thitima Benjachat Suttichet
- Department of Medicine, Faculty of Medicine, Center of Excellence in Immunology and Immune-mediated Diseases, Chulalongkorn University, Bangkok, Thailand
| | - Wonngarm Kittanamongkolchai
- Chula Clinical Research Center and Renal Immunology and Transplantation Research Unit, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Chutipha Phromjeen
- Chula Clinical Research Center and Renal Immunology and Transplantation Research Unit, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | | | - Thanachai Panaput
- Department of Medicine, Khon Kaen Regional Hospital, Khon Kaen, Thailand
| | - Atiporn Ingsathit
- Section for Clinical Epidemiology and Biostatistics, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Nanticha Kamanamool
- Department of Preventive and Social Medicine, Faculty of Medicine, Srinakharinwirot University, Bangkok, Thailand
| | | | - Vasant Sumethakul
- Department of Internal Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Yingyos Avihingsanon
- Department of Medicine, Faculty of Medicine, Center of Excellence in Immunology and Immune-mediated Diseases, Chulalongkorn University, Bangkok, Thailand
| |
Collapse
|
13
|
Kwon OC, Park Y, Lee JS, Oh JS, Kim YG, Lee CK, Yoo B, Hong S. Non-albumin proteinuria as a parameter of tubulointerstitial inflammation in lupus nephritis. Clin Rheumatol 2018; 38:235-241. [PMID: 30094751 DOI: 10.1007/s10067-018-4256-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 07/16/2018] [Accepted: 08/03/2018] [Indexed: 12/30/2022]
Abstract
Tubulointerstitial inflammation (TI) has prognostic significance in the renal outcomes of lupus nephritis. Here, we aimed to determine whether non-albumin proteinuria is associated with TI severity and with the renal response in lupus nephritis. We included patients with biopsy-confirmed lupus nephritis at a tertiary medical center in Korea from January 2011 to April 2017. Patients in whom the urine protein/creatinine ratio (uPCR) and the urine albumin/creatinine ratio (uACR) were measured simultaneously were included. Laboratory data and renal pathology were reviewed. Non-albumin proteinuria was calculated by subtracting uACR from uPCR. The renal response was assessed by the amount of proteinuria present at 6 months after treatment with immunosuppressants. Logistic regression analyses were performed to identify factors associated with TI severity and renal response. Out of 45 patients, 36 (80%) had no-to-mild TI, whereas 9 (20%) had moderate-to-severe TI. Proliferative (class III ± V/IV ± V) and nonproliferative (class II/V) glomerulonephritis (GN) were present in 38 (84.4%) and 7 (15.6%) patients, respectively. In the logistic regression analyses, non-albumin proteinuria (uPCR - uACR) was associated with moderate-to-severe TI (odds ratio [OR] 3.166, 95% confidence interval [95% CI] 1.145-8.757, p = 0.026) and was inversely associated with complete renal response (adjusted OR 0.180, 95% CI 0.045-0.718, p = 0.015). In lupus nephritis, non-albumin proteinuria was associated with TI severity and with poor renal response after immunosuppressive treatment. Thus, the determination of non-albumin proteinuria can provide clinically valuable information on lupus nephritis.
Collapse
Affiliation(s)
- Oh Chan Kwon
- Division of Rheumatology, Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea
| | - Yangsoon Park
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Jung Sun Lee
- Division of Rheumatology, Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea
| | - Ji Seon Oh
- Clinical Research Center, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Yong-Gil Kim
- Division of Rheumatology, Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea
| | - Chang-Keun Lee
- Division of Rheumatology, Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea
| | - Bin Yoo
- Division of Rheumatology, Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea
| | - Seokchan Hong
- Division of Rheumatology, Department of Medicine, University of Ulsan College of Medicine, Asan Medical Center, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, South Korea.
| |
Collapse
|
14
|
Pamfil C, Makowska Z, De Groof A, Tilman G, Babaei S, Galant C, Montigny P, Demoulin N, Jadoul M, Aydin S, Lesche R, McDonald F, Houssiau FA, Lauwerys BR. Intrarenal activation of adaptive immune effectors is associated with tubular damage and impaired renal function in lupus nephritis. Ann Rheum Dis 2018; 77:1782-1789. [PMID: 30065042 PMCID: PMC6241616 DOI: 10.1136/annrheumdis-2018-213485] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 07/12/2018] [Accepted: 07/16/2018] [Indexed: 02/02/2023]
Abstract
Objectives Chronic renal impairment remains a feared complication of lupus nephritis (LN). The present work aimed at identifying mechanisms and markers of disease severity in renal tissue samples from patients with LN. Methods We performed high-throughput transcriptomic studies (Illumina HumanHT-12 v4 Expression BeadChip) on archived kidney biopsies from 32 patients with LN and eight controls (pretransplant donors). Histological staging (glomerular and tubular scores) and immunohistochemistry experiments were performed on the same and on a replication set of 37 LN kidney biopsy samples. Results A group of LN samples was identified by unsupervised clustering studies based on their gene expression features, that is, the overexpression of transcripts involved in antigen presentation, T and B cell activation. These samples were characterised by a significantly lower estimated glomerular filtration rate (eGFR) at the time of biopsy (T0) compared with the other systemic lupus erythematosus samples. Yet, apparent disease duration at T0, double-stranded DNA antibody titres at T0 and other relevant characteristics (serum C3, proteinuria, histological scores, numbers of previous flares) were not different between groups. Immunohistochemistry studies confirmed the association between interstitial infiltration by adaptive immune effectors and decreased renal function in the same and in a replication group of LN kidney biopsies. This was associated with transcriptomic, histological and immunohistochemical evidence of renal tubular cell involvement. Conclusion Interstitial infiltration of LN kidney biopsies by adaptive immune effectors is associated with impaired renal tubular cell function and decreased eGFR. These results open new perspectives in evaluating and treating patients with LN, focusing on intrarenal mechanisms of immune cell activation.
Collapse
Affiliation(s)
- Cristina Pamfil
- Department of Rheumatology, Cliniques Universitaires Saint-Luc, Brussels, Belgium.,Pôle de pathologies rhumatismales systémiques et inflammatoires, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Brussels, Belgium
| | - Zuzanna Makowska
- Pharmaceuticals, Research and Development, Bayer AG, Berlin, Germany
| | - Aurélie De Groof
- Pôle de pathologies rhumatismales systémiques et inflammatoires, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Brussels, Belgium
| | - Gaëlle Tilman
- Department of Rheumatology, Cliniques Universitaires Saint-Luc, Brussels, Belgium.,Pôle de pathologies rhumatismales systémiques et inflammatoires, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Brussels, Belgium
| | - Sepideh Babaei
- Pharmaceuticals, Research and Development, Bayer AG, Berlin, Germany
| | - Christine Galant
- Pôle de pathologies rhumatismales systémiques et inflammatoires, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Brussels, Belgium.,Department of Pathology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Pauline Montigny
- Department of Rheumatology, Cliniques Universitaires Saint-Luc, Brussels, Belgium.,Pôle de pathologies rhumatismales systémiques et inflammatoires, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Brussels, Belgium
| | - Nathalie Demoulin
- Department of Nephrology, Cliniques Universitaires Saint-Luc, Brussels, Belgium.,Pôle de Néphrologie, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Brussels, Belgium
| | - Michel Jadoul
- Department of Nephrology, Cliniques Universitaires Saint-Luc, Brussels, Belgium.,Pôle de Néphrologie, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Brussels, Belgium
| | - Selda Aydin
- Department of Pathology, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Ralf Lesche
- Pharmaceuticals, Research and Development, Bayer AG, Berlin, Germany
| | - Fiona McDonald
- Pharmaceuticals, Research and Development, Bayer AG, Berlin, Germany
| | - Frédéric A Houssiau
- Department of Rheumatology, Cliniques Universitaires Saint-Luc, Brussels, Belgium.,Pôle de pathologies rhumatismales systémiques et inflammatoires, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Brussels, Belgium
| | - Bernard R Lauwerys
- Department of Rheumatology, Cliniques Universitaires Saint-Luc, Brussels, Belgium.,Pôle de pathologies rhumatismales systémiques et inflammatoires, Institut de Recherche Expérimentale et Clinique, Université catholique de Louvain, Brussels, Belgium
| |
Collapse
|
15
|
Tummers M, van Hoorn R, Levering C, Booth A, van der Wilt GJ, Kievit W. Optimal search strategies for identifying moderators and predictors of treatment effects in PubMed. Health Info Libr J 2018; 36:318-340. [PMID: 30006959 DOI: 10.1111/hir.12230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 06/07/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND Treatment effects differ across patients. To guide selection of treatments for patients, it is essential to acknowledge these differences and identify moderators or predictors. Our aim was to generate optimal search strategies (commonly known as filters) for PubMed to retrieve papers identifying moderators and predictors of treatment effects. METHODS Six journals were hand-searched for articles on moderators or predictors. Selected articles were randomly allocated to a development and validation set. Search terms were extracted from the development set and tested for their performance. Search filters were created from combinations of these terms and tested in the validation set. RESULTS Of 4407 articles, 198 were considered to be relevant. The most sensitive filter in the development set '("Epidemiologic Methods" [MeSH] OR assign* OR control*[tiab] OR trial*[tiab]) AND therapy*[sh]' yielded in the validation set a sensitivity of 89% [88%-90%] and a specificity of 80% [79%-82%]. CONCLUSIONS The search filters created in this study can help to efficiently retrieve evidence on moderators and predictors of treatment effect. Testing of the filters in multiple domains should reveal robustness across disciplines. These filters can facilitate the retrieval of evidence on moderators and predictors of treatment effects, helping the implementation of stratified or personalised health care.
Collapse
Affiliation(s)
- Marcia Tummers
- Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ralph van Hoorn
- Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Charlotte Levering
- Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Andrew Booth
- School of Health and Related Research (ScHARR), Health Economics and Decision Science (HEDS), University of Sheffield Regent Court, Sheffield, UK
| | - Gert Jan van der Wilt
- Donders Institute for Brain, Cognition and Behaviour, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Wietske Kievit
- Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| |
Collapse
|
16
|
Tunnicliffe DJ, Palmer SC, Henderson L, Masson P, Craig JC, Tong A, Singh‐Grewal D, Flanc RS, Roberts MA, Webster AC, Strippoli GFM. Immunosuppressive treatment for proliferative lupus nephritis. Cochrane Database Syst Rev 2018; 6:CD002922. [PMID: 29957821 PMCID: PMC6513226 DOI: 10.1002/14651858.cd002922.pub4] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Cyclophosphamide, in combination with corticosteroids, has been first-line treatment for inducing disease remission for proliferative lupus nephritis, reducing death at five years from over 50% in the 1950s and 1960s to less than 10% in recent years. Several treatment strategies designed to improve remission rates and minimise toxicity have become available. Treatments, including mycophenolate mofetil (MMF) and calcineurin inhibitors, alone and in combination, may have equivalent or improved rates of remission, lower toxicity (less alopecia and ovarian failure) and uncertain effects on death, end-stage kidney disease (ESKD) and infection. This is an update of a Cochrane review first published in 2004 and updated in 2012. OBJECTIVES Our objective was to assess the evidence and evaluate the benefits and harms of different immunosuppressive treatments in people with biopsy-proven lupus nephritis. The following questions relating to management of proliferative lupus nephritis were addressed: 1) Are new immunosuppressive agents superior to or as effective as cyclophosphamide plus corticosteroids? 2) Which agents, dosages, routes of administration and duration of therapy should be used? 3) Which toxicities occur with the different treatment regimens? SEARCH METHODS We searched the Cochrane Kidney and Transplant Specialised Register up to 2 March 2018 with support from the Cochrane Information Specialist using search terms relevant to this review. Studies in the Specialised Register are identified through searches of CENTRAL, MEDLINE, and EMBASE, conference proceedings, the International Clinical Trials Register (ICTRP) Search Portal and ClinicalTrials.gov. SELECTION CRITERIA Randomised controlled trials (RCTs) and quasi-RCTs comparing any immunosuppressive treatment for biopsy-proven class III, IV, V+III and V+VI lupus nephritis in adult or paediatric patients were included. DATA COLLECTION AND ANALYSIS Data were abstracted and the risks of bias were assessed independently by two authors. Dichotomous outcomes were calculated as risk ratio (RR) and measures on continuous scales calculated as mean differences (MD) with 95% confidence intervals (CI). The primary outcomes were death (all causes) and complete disease remission for induction therapy and disease relapse for maintenance therapy. Evidence certainty was determined using GRADE. MAIN RESULTS In this review update, 26 new studies were identified, to include 74 studies involving 5175 participants overall. Twenty-nine studies included children under the age of 18 years with lupus nephritis, however only two studies exclusively examined the treatment of lupus nephritis in patients less than 18 years of age.Induction therapy Sixty-seven studies (4791 participants; median 12 months duration (range 2.5 to 48 months)) reported induction therapy. The effects of all treatment strategies on death (all causes) and ESKD were uncertain (very low certainty evidence) as this outcome occurred very infrequently. Compared with intravenous (IV) cyclophosphamide, MMF may have increased complete disease remission (RR 1.17, 95% CI 0.97 to 1.42; low certainty evidence), although the range of effects includes the possibility of little or no difference.Compared to IV cyclophosphamide, MMF is probably associated with decreased alopecia (RR 0.29, 95% CI 0.19 to 0.46; 170 less (129 less to 194 less) per 1000 people) (moderate certainty evidence), increased diarrhoea (RR 2.42, 95% CI 1.64 to 3.58; 142 more (64 more to 257 more) per 1000 people) (moderate certainty evidence) and may have made little or no difference to major infection (RR 1.02, 95% CI 0.67 to 1.54; 2 less (38 less to 62 more) per 1000 people) (low certainty evidence). It is uncertain if MMF decreased ovarian failure compared to IV cyclophosphamide because the certainty of the evidence was very low (RR 0.36, 95% CI 0.06 to 2.18; 26 less (39 less to 49 more) per 1000 people). Studies were not generally designed to measure ESKD.MMF combined with tacrolimus may have increased complete disease remission (RR 2.38, 95% CI 1.07 to 5.30; 336 more (17 to 1048 more) per 1000 people (low certainty evidence) compared with IV cyclophosphamide, however the effects on alopecia, diarrhoea, ovarian failure, and major infection remain uncertain. Compared to standard of care, the effects of biologics on most outcomes were uncertain because of low to very low certainty of evidence.Maintenance therapyNine studies (767 participants; median 30 months duration (range 6 to 63 months)) reported maintenance therapy. In maintenance therapy, disease relapse is probably increased with azathioprine compared with MMF (RR 1.75, 95% CI 1.20 to 2.55; 114 more (30 to 236 more) per 1000 people (moderate certainty evidence). Multiple other interventions were compared as maintenance therapy, but patient-outcome data were sparse leading to imprecise estimates. AUTHORS' CONCLUSIONS In this review update, studies assessing treatment for proliferative lupus nephritis were not designed to assess death (all causes) or ESKD. MMF may lead to increased complete disease remission compared with IV cyclophosphamide, with an acceptable adverse event profile, although evidence certainty was low and included the possibility of no difference. Calcineurin combined with lower dose MMF may improve induction of disease remission compared with IV cyclophosphamide, but the comparative safety profile of these therapies is uncertain. Azathioprine may increase disease relapse as maintenance therapy compared with MMF.
Collapse
Affiliation(s)
- David J Tunnicliffe
- The University of SydneySydney School of Public HealthSydneyNSWAustralia2006
- The Children's Hospital at WestmeadCentre for Kidney ResearchWestmeadAustralia
| | - Suetonia C Palmer
- University of Otago ChristchurchDepartment of Medicine2 Riccarton AvePO Box 4345ChristchurchNew Zealand8140
| | - Lorna Henderson
- NHS LothianRenal DepartmentRoyal Infirmary of EdinburghEdinburghUKEH16 4SA
| | - Philip Masson
- Royal Free London NHS Foundation TrustDepartment of Renal MedicineLondonUK
| | - Jonathan C Craig
- The University of SydneySydney School of Public HealthSydneyNSWAustralia2006
- The Children's Hospital at WestmeadCochrane Kidney and Transplant, Centre for Kidney ResearchWestmeadNSWAustralia2145
- Flinders UniversityCollege of Medicine and Public HealthAdelaideSAAustralia5001
| | - Allison Tong
- The University of SydneySydney School of Public HealthSydneyNSWAustralia2006
- The Children's Hospital at WestmeadCentre for Kidney ResearchWestmeadAustralia
| | - Davinder Singh‐Grewal
- The Sydney Children's Hospitals NetworkDepartment Paediatric RheumatologyThe Children's Hospital at WestmeadCnr Hainsworth and Hawkesbury RoadsWestmeadNSWAustralia2145
| | - Robert S Flanc
- Monash Medical CentreDepartment of NephrologyClayton RdClaytonVICAustralia3168
| | - Matthew A Roberts
- Monash UniversityEastern Health Clinical SchoolBox HillVICAustralia3128
| | - Angela C Webster
- The University of SydneySydney School of Public HealthSydneyNSWAustralia2006
- The Children's Hospital at WestmeadCochrane Kidney and Transplant, Centre for Kidney ResearchWestmeadNSWAustralia2145
- The University of Sydney at WestmeadCentre for Transplant and Renal Research, Westmead Millennium InstituteWestmeadNSWAustralia2145
| | - Giovanni FM Strippoli
- The University of SydneySydney School of Public HealthSydneyNSWAustralia2006
- The Children's Hospital at WestmeadCochrane Kidney and Transplant, Centre for Kidney ResearchWestmeadNSWAustralia2145
- University of BariDepartment of Emergency and Organ TransplantationBariItaly
- DiaverumMedical Scientific OfficeLundSweden
- Diaverum AcademyBariItaly
| | | |
Collapse
|
17
|
Timlin H, Magder L, Petri M. Clinical Outcomes Observed among Biopsy Proven Lupus Nephritis Patients Treated with Mycophenolate Mofetil as First-line Therapy. Cureus 2017; 9:e1907. [PMID: 29410944 PMCID: PMC5796813 DOI: 10.7759/cureus.1907] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Background and objective The rate of end-stage renal disease from lupus nephritis has not declined, in spite of recent advances in therapeutics, such as mycophenolate mofetil (MMF). To provide insight into rates of the clinical outcomes in current practice after biopsy-proven lupus nephritis, we used a prospective cohort of the patients with newly diagnosed lupus nephritis, treated with MMF and observed their outcomes. Method Twenty systemic lupus erythematosus (SLE) patients who began mycophenolate mofetil shortly after a biopsy-confirmed diagnosis of lupus nephritis were included in the analysis. There were five patients with class III, nine with class IV, four with class III-V, one with class IV-V and two with class V lupus nephritis. The initial dose of mycophenolate mofetil was 1000 mg twice daily. If no improvement was observed, the dose was increased to 1500 mg twice daily after one month. We estimated the survival function for the time until the urine protein/creatinine reached 0.50 grams or less, after starting MMF by using an approach that accommodated interval-censored data. We also evaluated the treatment response using five different sets of criteria for the response that have previously been used in the clinical trials. These included the Bristol Myers-Squibb (BMS), the American College of Rheumatology (ACR), the lupus nephritis assessment with rituximab (LUNAR ), the Aspreva Lupus Management Study (ALMS), and the Abatacept and Cyclophosphamide Combination Efficacy and Safety Study (ACCESS). Result We estimated that 52% of the SLE patients reached 0.50 grams of proteinuria within 51 days of starting mycophenolate mofetil (95% confidence interval 29%-74%) and 77% reached 0.50 grams or less within 260 days (95% confidence interval 57%-97%). The probability of response at 90 and 180 days was 5% and 33% (the Bristol Myers-Squibb), 26% and 57% (the American College of Rheumatology), and 11% and 28% (the lupus nephritis assessment with rituximab, the Aspreva Lupus Management Study and the Abatacept and Cyclophosphamide Combination Efficacy and Safety Study). Conclusion The complete renal response ranged from 28% to 57% at six months in the routine clinical practice, mirroring the results in randomized clinical trials. Regardless of the response measures, the complete renal response was slow and, by most indices, reached in only a minority of the patients by the end of six months of the induction therapy. This indicates the urgent need for the faster and more effective lupus nephritis treatments.
Collapse
Affiliation(s)
- Homa Timlin
- Medicine, The Johns Hopkins University School of Medicine
| | - Laurence Magder
- Epidemiology and Public Health, University of Maryland School of Medicine
| | - Michelle Petri
- Rheumatology, The Johns Hopkins University School of Medicine
| |
Collapse
|
18
|
Satirapoj B, Kitiyakara C, Leelahavanichkul A, Avihingsanon Y, Supasyndh O. Urine neutrophil gelatinase-associated lipocalin to predict renal response after induction therapy in active lupus nephritis. BMC Nephrol 2017; 18:263. [PMID: 28778196 PMCID: PMC5545009 DOI: 10.1186/s12882-017-0678-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Accepted: 07/28/2017] [Indexed: 01/07/2023] Open
Abstract
Background Tubulointerstitial injury is important to predict the progression of lupus nephritis (LN). Urine neutrophil gelatinase-associated lipocalin (NGAL) has been reported to detect worsening LN disease activity. Thus, urine NGAL may predict renal outcomes among lupus patients. Methods We conducted a prospective multi-center study among active LN patients with biopsy-proven. All patients provided urine samples for NGAL measurement by ELISA collected from all patients at baseline and at 6-month follow-up after induction therapy. Results In all, 68 active LN patients were enrolled (mean age 31.7 ± 10.0 years, median UPCR 4.8 g/g creatinine level with interquartile range (IQR) 2.5 to 6.9 and mean estimated glomerular filtration rate (GFR) 89.6 ± 33.7 mL/min/1.73 m2). At baseline measurement, median urinary NGAL in complete response, partial response and nonresponse groups was 10.86 (IQR; 6.16, 22.4), 19.91 (IQR; 9.05, 41.91) and 65.5 (IQR; 18.3, 103) ng/mL, respectively (p = 0.006). Urinary NGAL (ng/mL) correlated positively with proteinuria and blood pressure, and correlated negatively with serum complement C3 level and estimated GFR. Based on ROC analysis, urinary NGAL (AUC; 0.724, 95%CI 0.491–0.957) outperformed conventional biomarkers (serum creatinine, urine protein, and GFR) in differentiating complete and partial response groups from the nonresponse group. The urine NGAL cut-off value in the ROC curve, 28.08 ng/mL, discriminated nonresponse with 72.7% sensitivity and 68.4% specificity. Conclusion Urine NGAL at baseline performed better than conventional markers in predicting a clinical response to treatment of active LN except serum complement C3 level. It may have the potential to predict poor response after induction therapy.
Collapse
Affiliation(s)
- Bancha Satirapoj
- Division of Nephrology, Department of Medicine, Phramongkutklao Hospital and College of Medicine, 315 Rachavitee Road, Phyathai, Bangkok, 10400, Thailand.
| | - Chagriya Kitiyakara
- Division of Nephrology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Asada Leelahavanichkul
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Yingyos Avihingsanon
- Division of Nephrology, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Ouppatham Supasyndh
- Division of Nephrology, Department of Medicine, Phramongkutklao Hospital and College of Medicine, 315 Rachavitee Road, Phyathai, Bangkok, 10400, Thailand
| |
Collapse
|
19
|
Serum uric acid levels contribute to new renal damage in systemic lupus erythematosus patients. Clin Rheumatol 2017; 36:845-852. [DOI: 10.1007/s10067-017-3538-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 12/11/2016] [Accepted: 01/09/2017] [Indexed: 02/07/2023]
|
20
|
Mahieu MA, Strand V, Simon LS, Lipsky PE, Ramsey-Goldman R. A critical review of clinical trials in systemic lupus erythematosus. Lupus 2016; 25:1122-40. [PMID: 27497257 PMCID: PMC4978143 DOI: 10.1177/0961203316652492] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
One challenge in caring for patients with systemic lupus erythematosus (SLE) is a paucity of approved therapeutics for treatment of the diverse disease manifestations. In the last 60 years, only one drug, belimumab, has been approved for SLE treatment. Critical evaluation of investigator initiated and pharma-sponsored randomized controlled trials (RCTs) highlights barriers to successful drug development in SLE, including disease heterogeneity, inadequate trial size or duration, insufficient dose finding before initiation of large trials, handling of background medications, and choice of primary endpoint. Herein we examine lessons learned from landmark SLE RCTs and subsequent advances in trial design, as well as discuss efforts to address limitations in current SLE outcome measures that will improve detection of true therapeutic responses in future RCTs.
Collapse
Affiliation(s)
- M A Mahieu
- Department of Medicine, Division of Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, USA
| | - V Strand
- Division of Immunology/Rheumatology, Stanford University School of Medicine, Palo Alto, USA
| | | | - P E Lipsky
- AMPEL BioSolutions, Charlottesville, USA
| | - R Ramsey-Goldman
- Department of Medicine, Division of Rheumatology, Northwestern University Feinberg School of Medicine, Chicago, USA
| |
Collapse
|
21
|
Hurdles to the introduction of new therapies for immune-mediated kidney diseases. Nat Rev Nephrol 2016; 12:205-16. [PMID: 26804020 DOI: 10.1038/nrneph.2015.206] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Innovative immunotherapies continue to markedly benefit many disciplines in clinical medicine but disappointingly, these benefits have not translated to the treatment of kidney diseases despite encouraging findings from preclinical models of kidney dysfunction. This lack of progress in nephrology might relate to the unique biology of the kidney. More likely, this lack of progress relates to conceptual hurdles in the application of newer therapies to renal disease. In this Review we discuss seven hurdles that must be addressed in order to appropriately assess and introduce immunologic therapies for immune-mediated kidney disease: the use of appropriate criteria to define disease categories; issues relating to the heterogeneity of kidney diseases and how this heterogeneity affects approaches to treatment; issues related to the rarity of most kidney diseases; the paucity of good animal models of human kidney disease; issues relating to trial design; problems with current approaches to the identification and use of appropriate and feasible study end points; and a lack of adequate biomarkers of intrarenal inflammation and parenchymal injury. We suggest that overcoming these hurdles, in addition to searching for better therapeutic targets, will be necessary to progress the treatment of immune-mediated kidney disease into a new age of drug therapy.
Collapse
|
22
|
Dall'Era M, Levesque V, Solomons N, Truman M, Wofsy D. Identification of clinical and serological factors during induction treatment of lupus nephritis that are associated with renal outcome. Lupus Sci Med 2015; 2:e000089. [PMID: 26023331 PMCID: PMC4442174 DOI: 10.1136/lupus-2015-000089] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 03/24/2015] [Accepted: 04/21/2015] [Indexed: 02/05/2023]
Abstract
Objective To identify factors associated with clinical outcome in patients with lupus nephritis. Methods Data from the Aspreva Lupus Management Study (ALMS) were analysed. Using multivariate analysis, we assessed the prognostic value of demographic, clinical, laboratory and histopathological features on the frequency of either complete remission (CR) or treatment failure (TF) during the maintenance phase. Results Among the 370 subjects who entered the trial (complete population), non-Hispanic ethnicity was associated with a higher likelihood of CR (OR=2.0). Several factors were independently associated with a greater likelihood of TF, including: (1) anti-double-stranded DNA (anti-dsDNA) at trial entry (OR=12.7), (2) failure to reduce anti-dsDNA within 8 weeks (OR=2.9) and (3) failure to reduce urine protein:creatinine ratio (UP/C) by ≥25% within 8 weeks (OR=2.6). Among the 227 subjects who entered the maintenance phase (maintenance population), baseline estimated glomerular filtration rate (eGFR) ≥90 mL/min/1.73 m2 was associated with a greater likelihood of CR (OR=2.0), and UP/C >1 at the end of induction was associated with a lower likelihood of CR (OR=0.3). Induction treatment with intravenous cyclophosphamide (IVC) was associated with a lower likelihood of TF (OR=0.5), while lack of treatment with antimalarials (OR=2.4), failure to reduce anti-dsDNA during the first 8 weeks of induction (OR=3.5), failure to reduce UP/C during the first 8 weeks of induction (OR=2.1) and anti-dsDNA positivity at the end of induction (OR=8.3) were independently associated with a greater likelihood of TF. Conclusions This analysis demonstrates that levels of anti-dsDNA and UP/C during induction treatment are independently associated with renal outcome over the ensuing 3 years in both the complete and maintenance populations. Ethnicity is associated with renal outcome in just the complete population, and eGFR, induction treatment and treatment with antimalarials are associated with renal outcome in just the maintenance population.
Collapse
Affiliation(s)
- Maria Dall'Era
- Division of Rheumatology, UCS F , San Francisco, California , USA
| | | | - Neil Solomons
- Aurinia Pharma , Victoria, British Columbia , Canada
| | - Matt Truman
- Truman Statistical Services , Sydney , Australia
| | - David Wofsy
- Division of Rheumatology , UCSF , San Francisco, California , USA
| |
Collapse
|
23
|
Abstract
Childhood-onset systemic lupus erythematosus (cSLE) is a systemic autoimmune disease characterized by the presence of autoantibodies. cSLE often affects multiple organs in the body and is known to have a poorer prognosis than adult-onset disease (Azevedo et al. 2014). Current laboratory tests are clearly insufficient for identifying and monitoring the disease. Recent studies have yielded novel biomarkers for cSLE which can be used for monitoring disease activity and response to treatment. The most encouraging biomarkers will be discussed herein and include cell-bound complement activation products, some genomic profiles, and urinary proteins such as neutrophil gelatinase-associated lipocalin, monocyte chemoattractant protein-1, and others. Previous studies suggested that a combination of the novel biomarkers might help to enhance sensitivity and specificity for early diagnosis, disease monitoring, and prediction of cSLE flares.
Collapse
Affiliation(s)
- Khalid M. Abulaban
- Division of Pediatric Rheumatology, Cincinnati Children’s Hospital, Medical Center, MLC 4010, 3333 Burnet Avenue, Cincinnati, OH 45229-3026, USA
| | - Hermine I. Brunner
- Division of Pediatric Rheumatology, Cincinnati Children’s Hospital, Medical Center, MLC 4010, 3333 Burnet Avenue, Cincinnati, OH 45229-3026, USA
| |
Collapse
|
24
|
Henderson L, Masson P, Craig JC, Flanc RS, Roberts MA, Strippoli GFM, Webster AC. Treatment for lupus nephritis. Cochrane Database Syst Rev 2012; 12:CD002922. [PMID: 23235592 DOI: 10.1002/14651858.cd002922.pub3] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Cyclophosphamide, in combination with corticosteroids has been used to induce remission in proliferative lupus nephritis, the most common kidney manifestation of the multisystem disease, systemic lupus erythematosus. Cyclophosphamide therapy has reduced mortality from over 70% in the 1950s and 1960s to less than 10% in recent years. Cyclophosphamide combined with corticosteroids preserves kidney function but is only partially effective and may cause ovarian failure, infection and bladder toxicity. Several new agents, including mycophenolate mofetil (MMF), suggest reduced toxicity with equivalent rates of remission. This is an update of a Cochrane review first published in 2004. OBJECTIVES To assess the benefits and harms of different immunosuppressive treatments in biopsy-proven proliferative lupus nephritis. SEARCH METHODS For this update, we searched the Cochrane Renal Group's Specialised Register (up to 15 April 2012) through contact with the Trials' Search Coordinator using search terms relevant to this review. SELECTION CRITERIA Randomised controlled trials (RCTs) and quasi-RCTs comparing any treatments for biopsy-proven lupus nephritis in both adult and paediatric patients with class III, IV, V +III and V +IV lupus nephritis were included. All immunosuppressive treatments were considered. DATA COLLECTION AND ANALYSIS Data were abstracted and quality assessed independently by two authors, with differences resolved by discussion. Dichotomous outcomes were reported as risk ratio (RR) and measurements on continuous scales reported as mean differences (MD) with 95% confidence intervals (CI). MAIN RESULTS We identified 50 RCTs involving 2846 participants. Of these, 45 studies (2559 participants) investigated induction therapy, and six studies (514 participants), considered maintenance therapy.Compared with intravenous (IV) cyclophosphamide, MMF was as effective in achieving stable kidney function (5 studies, 523 participants: RR 1.05, 95% CI 0.94 to 1.18) and complete remission of proteinuria (6 studies, 686 participants: RR 1.16, 95% CI 0.85 to 1.58). No differences in mortality (7 studies, 710 participants: RR 1.02, 95% CI 0.52 to 1.98) or major infection (6 studies, 683 participants: RR 1.11, 95% CI 0.74 to 1.68) were observed. A significant reduction in ovarian failure (2 studies, 498 participants: RR 0.15, 95% CI 0.03 to 0.80) and alopecia (2 studies, 522 participants: RR 0.22, 95% CI 0.06 to 0.86) was observed with MMF. In maintenance therapy, the risk of renal relapse (3 studies, 371 participants: RR 1.83, 95% CI 1.24 to 2.71) was significantly higher with azathioprine compared with MMF. Multiple other interventions were compared but outcome data were relatively sparse. Overall study quality was variable. The internal validity of the design, conduct and analysis of the included RCTs was difficult to assess in some studies because of the omission of important methodological details. No study adequately reported all domains of the risk of bias assessment so that elements of internal bias may be present. AUTHORS' CONCLUSIONS MMF is as effective as cyclophosphamide in inducing remission in lupus nephritis, but is safer with a lower risk of ovarian failure. MMF is more effective than azathioprine in maintenance therapy for preventing relapse with no increase in clinically important side effects. Adequately powered trials with long term follow-up are required to more accurately define the risks and eventual harms of specific treatment regimens.
Collapse
Affiliation(s)
- Lorna Henderson
- Centre for Transplant and Renal Research, Westmead Millennium Institute, The University of Sydney at Westmead, Westmead,Australia.
| | | | | | | | | | | | | |
Collapse
|
25
|
Juvenile systemic lupus erythematosus onset patterns in Vietnamese children: a descriptive study of 45 children. Pediatr Rheumatol Online J 2012; 10:38. [PMID: 23164451 PMCID: PMC3551686 DOI: 10.1186/1546-0096-10-38] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Accepted: 11/10/2012] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND Incidence and disease pattern of childhood-onset SLE is reported to differ among ethnic groups. METHODS To describe disease pattern and 6 month follow-up in a referral based cohort of 45 Vietnamese children with SLE. Forty-five children who were subsequently diagnosed to have systemic lupus erythematosus (f/m = 4/1) were referred to the Ho Chi Minh City Children's Hospital No.1 during a 12-month period in 2009. RESULTS The mean age at diagnosis was 12.8 years (SD = 2.5). Thirty-seven (82%) fulfilled criteria for lupus nephritis (LN). At diagnosis, impressively high SLEDAI and ECLAM scores were recorded (mean and SD), 23.8 (11.6) and 6 (2.3), respectively. The mean renal SLEDAI score was 8.2. The mean haemoglobin (g/dL, SD) was 8.5 (2.1). The Coombs test was positive in 30 of 36 children (83%). The mean plasma creatinine was 0.98 (SD 1.2) and mean Westergren sedimentation rate was 83.6 (SD 37.4). The patient age at diagnosis was positively correlated to the SLEDAI (p = 0.034) and ECLAM (p = 0.022). At 6 month follow-up of the 45 children, 15 patients were in complete remission, 5 were in partial remission, 6 had stable disease, 3 had relapsed, 3 had evolving disease, 2 had ongoing resistant disease and 4 had died. Seven patients were lost to follow-up. A second renal biopsy showed an improved ISN class in 13 of 15; in 2 cases the ISN class remained unchanged. CONCLUSIONS Forty-five Vietnamese children with SLE were referred to Ho Chi Minh Children's Hospital No. 1 during a16 month period from 2008-2009. These patients had a strikingly high prevalence of Coombs positive anaemia, a high prevalence of lupus nephritis, and very high SLEDAI and ECLAM scores at the time of diagnosis. While there may be referral biases, our Vietnamese SLE patients appear to have severe disease upon presentation but do reasonably well in the short-term.
Collapse
|
26
|
Hahn BH, McMahon MA, Wilkinson A, Wallace WD, Daikh DI, Fitzgerald JD, Karpouzas GA, Merrill JT, Wallace DJ, Yazdany J, Ramsey-Goldman R, Singh K, Khalighi M, Choi SI, Gogia M, Kafaja S, Kamgar M, Lau C, Martin WJ, Parikh S, Peng J, Rastogi A, Chen W, Grossman JM. American College of Rheumatology guidelines for screening, treatment, and management of lupus nephritis. Arthritis Care Res (Hoboken) 2012; 64:797-808. [PMID: 22556106 PMCID: PMC3437757 DOI: 10.1002/acr.21664] [Citation(s) in RCA: 914] [Impact Index Per Article: 76.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Bevra H Hahn
- School of Medicine, University of California-Los Angeles, CA 90095-1670, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Izmirly PM, Shvartsbeyn M, Meehan S, Franks A, Braun A, Ginzler E, Xu SX, Yee H, Rivera TL, Rivera T, Esmon C, Barisoni L, Merrill JT, Buyon JP, Clancy RM. Dysregulation of the microvasculature in nonlesional non-sun-exposed skin of patients with lupus nephritis. J Rheumatol 2012; 39:510-5. [PMID: 22298906 DOI: 10.3899/jrheum.110878] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Membrane endothelial protein C receptor (mEPCR) is highly expressed in peritubular capillaries of kidneys from patients with active and poorly responsive lupus nephritis (LN). We investigated the hypothesis that changes in the microvasculature are widespread with extension to the dermal vasculature. METHODS Skin biopsies from uninvolved skin (buttocks) were performed in 27 patients with LN and 5 healthy controls. Sections were stained with specific antibodies reactive with mEPCR, adiponectin, intercellular adhesion molecule-1 (ICAM-1), and CD31; then assessed by enumeration of stained blood vessels (percentage positive blood vessels) blinded to knowledge of clinical information. RESULTS There was a significant increase in the prevalence of blood vessels that stained for mEPCR and ICAM-1 in patients compared to controls [94% vs 59% (p = 0.045) and 81% vs 67% (p = 0.037), respectively]. Adiponectin staining and CD31 staining were similar between the groups (45% vs 43% and 98% vs 92%). Dermal staining for mEPCR was greater in patients with proliferative glomerulonephritis than in those with membranous disease (96% vs 60%; p = 0.029). A composite of poor prognostic renal markers and death was significantly associated with greater expression of mEPCR staining. CONCLUSION These data are consistent with the notion that in patients with LN, activation of the microvasculature extends beyond the clinically targeted organ. The insidious expression of this widespread vasculopathy may be a contributor to longterm comorbidities.
Collapse
Affiliation(s)
- Peter M Izmirly
- Department of Medicine, NYU School of Medicine, New York, NY 10016, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|