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Stueck AE, Fiel MI. Hepatic graft-versus-host disease: what we know, when to biopsy, and how to diagnose. Hum Pathol 2023; 141:170-182. [PMID: 37541449 DOI: 10.1016/j.humpath.2023.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 04/19/2023] [Accepted: 07/24/2023] [Indexed: 08/06/2023]
Abstract
Graft-versus-host disease (GVHD) is one of the serious complications that may develop after hematopoietic cell transplantation (HCT), for hematologic malignancies, solid organ transplantation, and other hematologic disorders. GVHD develops due to T lymphocytes present in the graft attacking the host antigens, which results in tissue damage. A significant number of HCT patients develop acute or chronic GVHD, which may affect multiple organs including the liver. The diagnosis of hepatic GVHD (hGVHD) is challenging as many other conditions in HCT patients may lead to liver dysfunction. Particularly challenging among the various conditions that give rise to liver dysfunction is differentiating sinusoidal obstruction syndrome and drug-induced liver injury (DILI) from hGVHD on clinical grounds and laboratory tests. Despite the minimal risks involved in performing a liver biopsy, the information gleaned from the histopathologic changes may help in the management of these very complex patients. There is a spectrum of histologic features found in hGVHD, and most involve histopathologic changes affecting the interlobular bile ducts. These include nuclear and cytoplasmic abnormalities including dysmorphic bile ducts, apoptosis, and cholangiocyte necrosis, among others. The hepatitic form of hGVHD typically shows severe acute hepatitis. With chronic hGVHD, there is progressive bile duct loss and eventually fibrosis. Accurate diagnosis of hGVHD is paramount so that timely treatment and management can be initiated. Techniques to prevent and lower the risk of GVHD from developing have recently evolved. If a diagnosis of acute GVHD is made, the first-line of treatment is steroids. Recurrence is common and steroid resistance or dependency is not unusual in this setting. Second-line therapies differ among institutions and have not been uniformly established. The development of GVHD, particularly hGVHD, is associated with increased morbidity and mortality.
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Affiliation(s)
- Ashley E Stueck
- Department of Pathology, Dalhousie University, 715 - 5788 University Avenue, Halifax, NS, B3H 2Y9, Canada.
| | - M Isabel Fiel
- Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, 1468 Madison Ave, New York, NY, 10029, USA.
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Gardenswartz A, Mehta B, El-Mallawany NK, van de Ven C, Hochberg J, Flower A, Morris E, Harrison L, Chu Y, Basso J, Gerard P, Islam H, Ayello J, Baxter-Lowe LA, Cairo MS. Safety and efficacy of combinatorial therapy utilizing myeloablative conditioning and autologous stem cell transplantation, targeted immunotherapy, and reduced intensity conditioning and allogeneic stem cell transplantation in children, adolescents, and young adults with relapsed/refractory mature B-cell non-Hodgkin lymphoma. Leuk Lymphoma 2023; 64:234-237. [PMID: 36260003 DOI: 10.1080/10428194.2022.2133542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | - Brinda Mehta
- Department of Pediatrics, St. Jude Children's Research Hospital, Peoria, IL, USA
| | | | | | - Jessica Hochberg
- Department of Pediatrics, New York Medical College, Valhalla, NY, USA
| | - Allyson Flower
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, Weill Cornell Medical College, New York, NY, USA
| | - Erin Morris
- Department of Pediatrics, New York Medical College, Valhalla, NY, USA
| | - Lauren Harrison
- Department of Pediatrics, New York Medical College, Valhalla, NY, USA
| | - Yaya Chu
- Department of Pediatrics, New York Medical College, Valhalla, NY, USA
| | - Jaclyn Basso
- Department of Pediatrics, New York Medical College, Valhalla, NY, USA
| | - Perry Gerard
- Department of Radiology, New York Medical College, Valhalla, NY, USA
| | - Humayun Islam
- Department of Pathology, New York Medical College, Valhalla, NY, USA
| | - Janet Ayello
- Department of Pediatrics, New York Medical College, Valhalla, NY, USA
| | - Lee Ann Baxter-Lowe
- Department of Pathology and Laboratory Medicine, Children's Hospital of Los Angeles, Los Angeles, CA, USA
| | - Mitchell S Cairo
- Department of Pediatrics, New York Medical College, Valhalla, NY, USA.,Department of Pathology, New York Medical College, Valhalla, NY, USA.,Department of Medicine, New York Medical College, Valhalla, NY, USA.,Department of Microbiology and Immunology, New York Medical College, Valhalla, NY, USA.,Department of Cell Biology and Anatomy, Hematology and Stem Cell Transplantation, Valhalla, NY, USA
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Area-under-the-Curve-Based Mycophenolate Mofetil Dosage May Contribute to Decrease the Incidence of Graft-versus-Host Disease after Allogeneic Hematopoietic Cell Transplantation in Pediatric Patients. J Clin Med 2021; 10:jcm10030406. [PMID: 33494356 PMCID: PMC7865591 DOI: 10.3390/jcm10030406] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 01/07/2021] [Accepted: 01/17/2021] [Indexed: 12/13/2022] Open
Abstract
Acute graft-versus-host disease (GvHD) remains the second leading cause of death, after disease relapse, in patients undergoing allogeneic hematopoietic stem cell transplantation (allo-HSCT). The medical records of 112 pediatric patients who underwent allo-HSCT from matched unrelated and haploidentical donors were analyzed. Patients were divided into two groups, according to the GvHD prophylactic regimen used. In the control group, GvHD prophylaxis consisted of cyclosporine A (CsA) and methotrexate (MTX) or CsA and mycophenolate mofetil (MMF) at a standard daily dose of 30 mg/kg. All subjects in the study group received tacrolimus (FK506) and MMF. In this group, MMF was subjected to therapeutic drug monitoring (TDM) through mycophenolic acid (MPA) area under the curve AUC0–12. We found a statistically significant difference in both overall acute GvHD (p < 0.0001) and overall chronic GvHD (p < 0.05) incidence between the study and the control group. The initial daily MMF dose and the age at transplant in the study group proved to be inversely correlated (r = −0.523, p < 0.0001). The children under six years of age required a significantly higher daily MMF dose (p < 0.008). This study showed that pharmacological monitoring of MPA AUC0–12 concentration allowed a reduction in the incidence of acute and chronic GvHD. MMF showed age-dependent pharmacokinetics due to greater drug clearance in younger children.
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Prediction of Clearance in Children from Adults Following Drug-Drug Interaction Studies: Application of Age-Dependent Exponent Model. Drugs R D 2020; 20:47-54. [PMID: 32056156 PMCID: PMC7067713 DOI: 10.1007/s40268-020-00295-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Background and Objective Pharmacokinetic drug–drug interaction (DDI) studies are conducted in adult subjects during drug development but there are limited studies that have characterized pharmacokinetic DDI studies in children. The objective of this study was to evaluate if the DDI clearance values from adults can be allometrically extrapolated from adults to children. Methods Fifteen drugs were included in this study and the age of the children ranged from premature neonates to adolescents (30 observations across the age groups). The age-dependent exponent (ADE) model was used to predict the clearance of drugs in children from adults following DDI studies. Results The prediction error of drug clearances following DDIs in children ranged from 4 to 67%. Of 30 observations, 17 (57%) and 27 (90%) observations had a prediction error ≤ 30% and ≤ 50%, respectively. Conclusion This study indicates that it is possible to predict the clearance of drugs with reasonable accuracy in children from adults following DDI studies using an ADE model. The method is simple, robust, and reliable and can replace other complex empirical models.
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5
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Medina D, Estacio M, Rosales M, Manzi E. Haploidentical stem cell transplant with post-transplantation cyclophosphamide and mini-dose methotrexate in children. Hematol Oncol Stem Cell Ther 2020; 13:208-213. [PMID: 32224144 DOI: 10.1016/j.hemonc.2020.01.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 01/15/2019] [Accepted: 01/14/2020] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Haploidentical stem cell transplantation (haplo-SCT) is an option for patients without human leukocyte antigen-matched related or unrelated donor. Post-transplantation cyclophosphamide (PTCy) is an effective method of graft versus host disease (GVHD) prophylaxis and permits the use of T-cell replete grafts in settings were ex vivo manipulation is not feasible. METHODS A retrospective study among patients younger than 18 years, with a history of hematologic malignancies who underwent haplo-SCT between 2012 and 2016. All patients received a preparative regimen of fludarabine, busulfan, and 400 cGy total body irradiation or melphalan. Post-transplant GvHD prophylaxis consisted either of PTCy (50 mg/kg on Days + 3 and + 4) and cyclosporine (CSA) plus mycophenolate (MMF) (15 mg/kg/dose, thrice daily, per os), or mini-dose methotrexate (MTX; 5 mg/m2 dose) on Days + 5, +7, +10, and + 15. RESULTS A total of 52 children were included, whose median age was 9 years (interquartile range, 4.9-14; range, 1.2-17 years), and 63% were males. The most common complications were cytomegalovirus reactivation (57%) and hemorrhagic cystitis (36%). The acute GVHD prophylaxis was PTCy, CSA, and mini-dose MTX in 42 (81%) patients, and 10 (19%) patients received PTCy, CSA, and MMF. The cumulative incidence of acute GvHD II-IV, acute GvHD III-IV, and chronic GvHD were 42%, 8.5%, and 19%, respectively. Grades I-IV acute GvHD occurred in 100% of the patients who received prophylaxis with CSA and MMF, and 62% who received CSA and mini-dose MTX (p = .055). The transplant-related mortality at 100 days was 18%. The 5-year overall and event-free survival were 59% and 57%, respectively. CONCLUSIONS Haplo-SCT with PT/Cy can be an available, safe, and feasible option for children with hematologic malignancies; meanwhile, the use of mini-dose of MTX was associated with lower rates of acute GVHD. However, our results require further support from prospective randomized studies to improve the efficacy of this prophylactic strategy.
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Affiliation(s)
- Diego Medina
- Stem Cell Transplant, Fundación Valle del Lili, Cali, Colombia.
| | - Mayra Estacio
- Stem Cell Transplant, Fundación Valle del Lili, Cali, Colombia.
| | - Maria Rosales
- Stem Cell Transplant, Fundación Valle del Lili, Cali, Colombia
| | - Eliana Manzi
- Stem Cell Transplant, Fundación Valle del Lili, Cali, Colombia
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Kawashima N, Iida M, Suzuki R, Fukuda T, Atsuta Y, Hashii Y, Inoue M, Kobayashi M, Yabe H, Okada K, Adachi S, Yuza Y, Kawa K, Kato K. Prophylaxis and treatment with mycophenolate mofetil in children with graft-versus-host disease undergoing allogeneic hematopoietic stem cell transplantation: a nationwide survey in Japan. Int J Hematol 2019; 109:491-498. [DOI: 10.1007/s12185-019-02601-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 01/16/2019] [Accepted: 01/17/2019] [Indexed: 11/29/2022]
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7
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Militano O, Ozkaynak MF, Mehta B, van deVen C, Hamby C, Cairo MS. Mycophenolate mofetil administered every 8 hours in combination with tacrolimus is efficacious in the prophylaxis of acute graft versus host disease in childhood, adolescent, and young adult allogeneic stem cell transplantation recipients. Pediatr Blood Cancer 2018; 65:e27091. [PMID: 29667720 DOI: 10.1002/pbc.27091] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 02/26/2018] [Accepted: 03/20/2018] [Indexed: 01/14/2023]
Abstract
BACKGROUND The optimal dose and schedule of mycophenolate mofetil (MMF) in pediatric allogeneic stem cell transplant recipients remains to be determined. We previously reported safety and pharmacokinetics of MMF at 900 mg/m2 q6h dosing. This study was conducted to investigate the efficacy of tacrolimus plus q8h MMF dosing for acute graft versus host disease (GVHD) prophylaxis in a heterogeneous population of children, adolescent, young adult allogeneic stem cell transplant recipients, utilizing multiple allogeneic donor sources. PROCEDURE GVHD prophylaxis consisted of tacrolimus 0.03-0.04 mg/kg/day intravenous continuous infusion or 0.12-0.16 mg/kg/day orally divided q8-12h and MMF 900 mg/m2 /dose (max. 1.5 g) or 15 mg/kg/dose intravenous/orally (age ≥18 years) q8h starting on Day +1. MMF was discontinued on Day +30 or Day +60 in the absence of acute GVHD. Thirty-five children, adolescents, and young adult allogeneic stem cell transplant recipients with malignant and nonmalignant disorders were enrolled. RESULTS Kaplan-Meier probability of grade II-IV and grade III-IV acute GVHD was 22.8% (CI95 : 5.2-47.9 [where CI stands for confidence interval]) and 5.7% (CI95 : 0-48.9), respectively. Probability of extensive and limited chronic GVHD was 22.6% (CI95 : 3.4-52.2) and 12.2% (CI95 : 0.3-45.7), respectively. Probability of 1 year overall survival was 82% (CI95 : 64.1-99.8). Myeloablative conditioning was predictive of higher risk of acute GVHD in the univariate analysis (P = 0.01, hazard ratio = 6.6, CI95 : 0.91-48). CONCLUSION This study demonstrated a low probability of acute and chronic GVHD in a diverse cohort of childhood, adolescent, and young adult allogeneic stem cell transplant recipients following MMF q8h plus tacrolimus prophylaxis.
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Affiliation(s)
- Olga Militano
- Department of Pediatrics, Maria Fareri Children's Hospital at Westchester Medical Center, New York Medical College, Valhalla, New York.,Children's Oncology Group, Monrovia, California
| | - Mehmet F Ozkaynak
- Department of Pediatrics, Maria Fareri Children's Hospital at Westchester Medical Center, New York Medical College, Valhalla, New York
| | - Brinda Mehta
- Department of Pediatrics, Maria Fareri Children's Hospital at Westchester Medical Center, New York Medical College, Valhalla, New York
| | - Carmella van deVen
- Department of Pediatrics, Maria Fareri Children's Hospital at Westchester Medical Center, New York Medical College, Valhalla, New York
| | - Carl Hamby
- Department of Microbiology and Immunology, Maria Fareri Children's Hospital at Westchester Medical Center, New York Medical College, Valhalla, New York
| | - Mitchell S Cairo
- Department of Pediatrics, Maria Fareri Children's Hospital at Westchester Medical Center, New York Medical College, Valhalla, New York.,Department of Microbiology and Immunology, Maria Fareri Children's Hospital at Westchester Medical Center, New York Medical College, Valhalla, New York.,Departments of Medicine, Pathology, and Cell Biology and Anatomy, Maria Fareri Children's Hospital at Westchester Medical Center, New York Medical College, Valhalla, New York
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8
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Hochberg J, Zahler S, Geyer MB, Chen N, Krajewski J, Harrison L, Militano O, Ozkaynak MF, Cheerva AC, Talano J, Moore TB, Gillio AP, Walters MC, Baxter-Lowe LA, Hamby C, Cairo MS. The safety and efficacy of clofarabine in combination with high-dose cytarabine and total body irradiation myeloablative conditioning and allogeneic stem cell transplantation in children, adolescents, and young adults (CAYA) with poor-risk acute leukemia. Bone Marrow Transplant 2018; 54:226-235. [PMID: 29899571 DOI: 10.1038/s41409-018-0247-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 04/16/2018] [Accepted: 05/19/2018] [Indexed: 01/19/2023]
Abstract
Acute leukemias in children with CR3, refractory relapse, or induction failure (IF) have a poor prognosis. Clofarabine has single agent activity in relapsed leukemia and synergy with cytarabine. We sought to determine the safety and overall survival in a Phase I/II trial of conditioning with clofarabine (doses 40 - 52 mg/m2), cytarabine 1000 mg/m2, and 1200 cGy TBI followed by alloSCT in children, adolescents, and young adults with poor-risk leukemia. Thirty-seven patients; Age 12 years (1-22 years); ALL/AML: 34:3 (18 IF, 10 CR3, 13 refractory relapse); 15 related, 22 unrelated donors. Probabilities of neutrophil, platelet engraftment, acute GvHD, and chronic GvHD were 94%, 84%, 49%, and 30%, respectively. Probability of day 100 TRM was 8.1%. 2-year EFS (event free survival) and OS (overall survival) were 38.6% (CI95: 23-54%), and 41.3% (CI95: 25-57%). Multivariate analysis demonstrated overt disease at time of transplant (relative risk (RR) 3.65, CI95: 1.35-9.89, P = 0.011) and umbilical cord blood source (RR 2.17, CI95: 1.33-4.15, P = 0.019) to be predictors of worse EFS/OS. This novel myeloablative conditioning regimen followed by alloSCT is safe and well tolerated in CAYA with very poor-risk ALL or AML. Further investigation in CAYA with better risk ALL and AML undergoing alloSCT is warranted.
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Affiliation(s)
| | - Stacey Zahler
- Pediatric Institute, Cleveland Clinic Children's, Cleveland, Ohio, USA
| | - Mark B Geyer
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Nan Chen
- Departments of Pediatrics, Valhalla, NY, USA
| | - Jennifer Krajewski
- Department of Pediatrics, Hackensack University Medical Center, Hackensack, NJ, USA
| | | | | | | | | | - Julie Talano
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Theodore B Moore
- Department of Pediatrics, University of California at Los Angeles, Los Angeles, CA, USA
| | - Alfred P Gillio
- Department of Pediatrics, Hackensack University Medical Center, Hackensack, NJ, USA
| | - Mark C Walters
- Department of Hematology/Oncology, Children's Hospital and Research Center of Oakland, Oakland, CA, USA
| | - Lee Ann Baxter-Lowe
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Los Angeles, CA, USA
| | - Carl Hamby
- Departments of Microbiology and Immunology, Valhalla, NY, USA
| | - Mitchell S Cairo
- Departments of Pediatrics, Valhalla, NY, USA. .,Departments of Microbiology and Immunology, Valhalla, NY, USA. .,Departments of Medicine, Valhalla, NY, USA. .,Departments of Pathology, Valhalla, NY, USA. .,Departments of Cell Biology and Anatomy, New York Medical College, Valhalla, NY, USA.
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McCune JS, Storer B, Thomas S, McKiernan J, Gupta R, Sandmaier BM. Inosine Monophosphate Dehydrogenase Pharmacogenetics in Hematopoietic Cell Transplantation Patients. Biol Blood Marrow Transplant 2018; 24:1802-1807. [PMID: 29656138 DOI: 10.1016/j.bbmt.2018.04.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 04/03/2018] [Indexed: 01/18/2023]
Abstract
We evaluated inosine monophosphate dehydrogenase (IMPDH) 1 and IMPDH2 pharmacogenetics in 247 recipient-donor pairs after nonmyeloablative hematopoietic cell transplant (HCT). Patients were conditioned with total body irradiation + fludarabine and received grafts from related or unrelated donors (10% HLA mismatch), with postgraft immunosuppression of mycophenolate mofetil (MMF) with a calcineurin inhibitor. Recipient and donor IMPDH genotypes (rs11706052, rs2278294, rs2278293) were not associated with day 28 T cell chimerism, acute graft-versus-host disease (GVHD), disease relapse, cytomegalovirus reactivation, nonrelapse mortality, or overall survival. Recipient IMPDH1 rs2278293 genotype was associated with a lower incidence of chronic GVHD (hazard ratio, .72; P = .008) in nonmyeloablative HCT recipients. Additional studies are needed to confirm these results with the goal of identifying predictive biomarkers to MMF that lower GVHD.
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Affiliation(s)
- Jeannine S McCune
- School of Pharmacy, University of Washington, Seattle, Washington; Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington; Department of Population Sciences, City of Hope, Duarte, California; Department of Hematology and HCT, City of Hope, Duarte, California.
| | - Barry Storer
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Sushma Thomas
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Jožefa McKiernan
- Department of Population Sciences, City of Hope, Duarte, California
| | - Rohan Gupta
- Department of Hematology and HCT, City of Hope, Duarte, California
| | - Brenda M Sandmaier
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
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10
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Kurata K, Yakushijin K, Okamura A, Yamamori M, Ichikawa H, Sakai R, Mizutani Y, Kakiuchi S, Miyata Y, Kitao A, Kawamoto S, Matsuoka H, Murayama T, Minami H. Pharmacokinetics of intravenous mycophenolate mofetil in allogeneic hematopoietic stem cell-transplanted Japanese patients. Cancer Chemother Pharmacol 2018; 81:839-846. [PMID: 29511796 DOI: 10.1007/s00280-018-3550-7] [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: 11/02/2017] [Accepted: 02/23/2018] [Indexed: 11/28/2022]
Abstract
PURPOSE Mycophenolate mofetil (MMF) is increasingly used among Japanese patients undergoing allogeneic hematopoietic stem cell transplantation (allo-SCT). Because pharmacokinetic data for MMF in the Asian population are limited, we conducted this investigation. METHODS Intravenous MMF (1000 mg/dose) was administered to 10 patients along with cyclosporine or tacrolimus for 10 days after allo-SCT; it was administered every 8 h in peripheral blood stem cell- and bone marrow-transplanted patients, and every 12 h in cord blood-transplanted patients. MMF was administered orally at the same dose from day 11. Plasma concentrations of mycophenolic acid (MPA) were measured by high-performance liquid chromatography. RESULTS The MPA AUC0 - tau was 31.9 ± 3.4, 26.2 ± 2.4, and 21.0 ± 2.2 µg*h/mL, the mean Ctrough was 0.25, 0.35, and 0.37 µg/mL, and the Cmax was 10.8, 9.2, and 5.5 µg/mL on days 2, 9, and 16, respectively. The AUC0 - tau and Cmax were significantly higher after intravenous MMF dosing than after oral MMF dosing. All patients exhibited successful neutrophil engraftments in a median time of 18 days. Grade II acute graft-versus-host disease (GvHD) of the skin was observed in two patients, and one patient developed limited chronic GvHD. Individual cases of transient and curable grade III oral mucositis and diarrhea were observed; however, MMF was not discontinued. No other severe complications or infections were observed. CONCLUSIONS Intravenously administered MMF was safe and possibly effective in achieving higher MPA plasma concentrations for GvHD prophylaxis after allo-SCT in Japanese patients.
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Affiliation(s)
- Keiji Kurata
- Division of Medical Oncology/Hematology, Department of Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan.,Department of Medical Oncology and Hematology, Kobe University Hospital, Kobe, Hyogo, Japan
| | - Kimikazu Yakushijin
- Department of Medical Oncology and Hematology, Kobe University Hospital, Kobe, Hyogo, Japan
| | - Atsuo Okamura
- Department of Medical Oncology and Hematology, Kobe University Hospital, Kobe, Hyogo, Japan.,Department of Hematology/Oncology, Kakogawa Central City Hospital, Kakogawa, Hyogo, Japan
| | - Motohiro Yamamori
- Department of Clinical Pharmacy, School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University, Nishinomiya, Hyogo, Japan
| | - Hiroya Ichikawa
- Department of Medical Oncology and Hematology, Kobe University Hospital, Kobe, Hyogo, Japan
| | - Rina Sakai
- Department of Medical Oncology and Hematology, Kobe University Hospital, Kobe, Hyogo, Japan
| | - Yu Mizutani
- Department of Medical Oncology and Hematology, Kobe University Hospital, Kobe, Hyogo, Japan
| | - Seiji Kakiuchi
- Department of Medical Oncology and Hematology, Kobe University Hospital, Kobe, Hyogo, Japan
| | - Yoshiharu Miyata
- Department of Medical Oncology and Hematology, Kobe University Hospital, Kobe, Hyogo, Japan
| | - Akihito Kitao
- Department of Medical Oncology and Hematology, Kobe University Hospital, Kobe, Hyogo, Japan
| | - Shinichiro Kawamoto
- Department of Transfusion Medicine and Cell Therapy, Kobe University Hospital, Kobe, Hyogo, Japan
| | - Hiroshi Matsuoka
- Department of Medical Oncology and Hematology, Kobe University Hospital, Kobe, Hyogo, Japan
| | - Tohru Murayama
- Department of Hematology, Hyogo Cancer Center, Akashi, Hyogo, Japan
| | - Hironobu Minami
- Division of Medical Oncology/Hematology, Department of Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan. .,Department of Medical Oncology and Hematology, Kobe University Hospital, Kobe, Hyogo, Japan.
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11
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Zhang D, Renbarger JL, Chow DSL. Pharmacokinetic Variability of Mycophenolic Acid in Pediatric and Adult Patients With Hematopoietic Stem Cell Transplantation. J Clin Pharmacol 2017; 56:1378-1386. [PMID: 27060685 DOI: 10.1002/jcph.745] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Accepted: 03/29/2016] [Indexed: 11/11/2022]
Abstract
The aim of this study was to evaluate the pharmacokinetic variations of mycophenolic acid (MPA), the active metabolite of mycophenolate mofetil (MMF), in both pediatric and adult patients following hematopoietic stem cell transplantation (HSCT). Twenty pediatric patients with a median age of 3 years (range 0.2-12 years) and 13 adult patients with a median age of 54 years (range 18-63 years) were enrolled. Blood samples were collected on days 0, 7, 14, 21, and 30 after allogeneic HSCT. Total and free (unbound) MPA as well as MPA 7-O-glucuronide (MPAG) were quantified using a validated LC-MS/MS assay. The plasma protein binding of MPA and MPAG did not change significantly in pediatric patients over the 1-month sampling period post-HSCT. However, it increased in adult patients from day 7 to day 30 post-HSCT, from 97.3 ± 0.8% to 98.3 ± 0.6% for MPA (P < .05), and 74.6 ± 9.4% to 82.9 ± 8.1% for MPAG (P < .05). The plasma protein binding of MPA was significantly higher in males compared to females in both pediatric (98.3 ± 1.1% vs 97.4 ± 1.1%) and adult (98.1 ± 0.7% vs 97.4 ± 1.2%) patients (P < .05). The MPAG/MPA ratios on a milligram-per-kilogram dose basis in adult patients were significantly higher than those in pediatric patients (4.3 ± 3.4 vs 2.4 ± 2.6; P < .05). Time-dependent plasma protein binding and age-related differences in MPA metabolism at least in part impact the reported large intra- and interindividual variability in MPA pharmacokinetics. These patient and pharmacologic factors, if incorporated into MMF regimen design and modification, may contribute to the rational dose selection of MMF in HSCT patients.
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Affiliation(s)
- Daping Zhang
- Department of Pharmacological and Pharmaceutical Sciences, University of Houston College of Pharmacy, Houston, TX, USA.
| | - Jamie L Renbarger
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Diana S-L Chow
- Department of Pharmacological and Pharmaceutical Sciences, University of Houston College of Pharmacy, Houston, TX, USA
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12
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Zhang D, Chow DSL. Clinical Pharmacokinetics of Mycophenolic Acid in Hematopoietic Stem Cell Transplantation Recipients. Eur J Drug Metab Pharmacokinet 2017; 42:183-189. [PMID: 27677732 DOI: 10.1007/s13318-016-0378-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Mycophenolate mofetil (MMF), an ester prodrug of mycophenolic acid (MPA), is widely used as a maintenance immunosuppressive regimen in solid organ transplant patients. It is increasingly used for the prophylaxis and treatment of graft-versus-host disease (GVHD) in hematopoietic stem cell transplantation (HSCT) patients. MPA displays extensive binding to serum albumin and glucuronidation to the inactive MPA-7-O-glucuronide (MPAG). Here, we review and discuss the pertinent information regarding the clinical pharmacokinetics of MPA in HSCT patients. The pharmacokinetics of MPA are altered in HSCT patients with lower oral bioavailability, shorter half-life and higher clearance than those in healthy volunteers and renal transplant recipients. Moreover, clearance may be increased in young pediatric patients. The optimal MMF dosing and preferred targets are still under investigation in HSCT patients due to the substantial intra- and inter-individual pharmacokinetic variability of MPA and broad range of transplants (malignant vs. nonmalignant, related vs. unrelated donor, and human leukocyte antigen mismatch). The complex pharmacokinetics of MPA have partly hampered the efficient use of MMF, and pharmacokinetic studies in HSCT patients have been limited in size and mostly inconclusive. Future research should be multi-institutional and focus on developing clinical decisions with adequate statistical power to improve clinical care of HSCT recipients.
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Affiliation(s)
- Daping Zhang
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, 1441 Moursund Street, Houston, TX, 77030, USA.
| | - Diana S-L Chow
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, 1441 Moursund Street, Houston, TX, 77030, USA
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13
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de Koning C, Admiraal R, Nierkens S, Boelens JJ. Immune reconstitution and outcomes after conditioning with anti-thymocyte-globulin in unrelated cord blood transplantation; the good, the bad, and the ugly. Stem Cell Investig 2017; 4:38. [PMID: 28607912 DOI: 10.21037/sci.2017.05.02] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 04/17/2017] [Indexed: 01/07/2023]
Abstract
Unrelated umbilical cord blood transplantation (UCBT) exhibits a low risk of graft-versus-host-disease (GvHD) and has unique potent anti-virus and anti-leukemia effects. Anti-thymocyte globulin (ATG) in the conditioning regimen for UCBT is successful in reducing graft rejection and GvHD. Nevertheless, this beneficial effect of ATG coincides with its detrimental effect on immune reconstitution. The latter directly relates to a high incidence of viral infections and leukemia relapses. ATG has been used in transplant patients for over 30 years. In recent years, the knowledge on the mechanisms of action of ATG and its implementation in the UCBT setting has increased dramatically. Important data became available showing the highly variable pharmacokinetics (PK) of ATG and its consequence on outcome measures. Here, we review the effects of ATG on immune reconstitution and subsequent outcomes after UCBT, and describe the mechanisms causing these effects. We highlight the importance of optimizing ATG exposure before and after UCBT and discuss strategies to maintain the 'good' and overcome the 'bad and ugly' effects of ATG on UCBT outcome.
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Affiliation(s)
- Coco de Koning
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Rick Admiraal
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands.,Pediatric Blood and Marrow Transplantation Program, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Stefan Nierkens
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Jaap Jan Boelens
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands.,Pediatric Blood and Marrow Transplantation Program, University Medical Center Utrecht, Utrecht, the Netherlands
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15
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Pharmacokinetics, Pharmacodynamics, and Pharmacogenomics of Immunosuppressants in Allogeneic Hematopoietic Cell Transplantation: Part II. Clin Pharmacokinet 2016; 55:551-93. [PMID: 26620047 DOI: 10.1007/s40262-015-0340-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Part I of this article included a pertinent review of allogeneic hematopoietic cell transplantation (alloHCT), the role of postgraft immunosuppression in alloHCT, and the pharmacokinetics, pharmacodynamics, and pharmacogenomics of the calcineurin inhibitors and methotrexate. In this article (Part II), we review the pharmacokinetics, pharmacodynamics, and pharmacogenomics of mycophenolic acid (MPA), sirolimus, and the antithymocyte globulins (ATG). We then discuss target concentration intervention (TCI) of these postgraft immunosuppressants in alloHCT patients, with a focus on current evidence for TCI and on how TCI may improve clinical management in these patients. Currently, TCI using trough concentrations is conducted for sirolimus in alloHCT patients. Several studies demonstrate that MPA plasma exposure is associated with clinical outcomes, with an increasing number of alloHCT patients needing TCI of MPA. Compared with MPA, there are fewer pharmacokinetic/dynamic studies of rabbit ATG and horse ATG in alloHCT patients. Future pharmacokinetic/dynamic research of postgraft immunosuppressants should include '-omics'-based tools: pharmacogenomics may be used to gain an improved understanding of the covariates influencing pharmacokinetics as well as proteomics and metabolomics as novel methods to elucidate pharmacodynamic responses.
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16
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Strategies before, during, and after hematopoietic cell transplantation to improve T-cell immune reconstitution. Blood 2016; 128:2607-2615. [PMID: 27697775 DOI: 10.1182/blood-2016-06-724005] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 09/28/2016] [Indexed: 12/11/2022] Open
Abstract
T-cell immune reconstitution (IR) after allogeneic hematopoietic cell transplantation (allo-HCT) is highly variable between patients and may take several months to even years. Patients with delayed or unbalanced T-cell IR have a higher probability of developing transplantation-related morbidity, mortality, and relapse of disease. Hence, there is a need for strategies to better predict and improve IR to reduce these limitations of allo-HCT. In this review, we provide an update of current and in-near-future clinically relevant strategies before, during, and after transplantation to achieve successful T-cell IR. Potent strategies are choosing the right HCT source (eg, donor-recipient matching, cell dose, graft manipulation), individualized conditioning and serotherapy (eg, antithymocyte globulin), nutritional status, exercise, home care, modulation of microbiota, enhancing homeostatic peripheral expansion, promoting thymopoiesis, and the use of adjuvant-targeted cellular immunotherapies. Strategies to prevent graft-versus-host disease are important as well because this complication and the subsequent need for immunosuppression affects T-cell IR and function. These options aim for personalized precision transplantation, where allo-HCT therapy is designed to boost a well-balanced T-cell IR and limit complications in individual patients, resulting in overall lower morbidity and higher survival chances.
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17
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Bremm M, Huenecke S, Zimmermann O, Pfirrmann V, Quaiser A, Bonig H, Soerensen J, Klingebiel T, Rettinger E, Bader P, Cappel C. In-vitro influence of mycophenolate mofetil (MMF) and Ciclosporin A (CsA) on cytokine induced killer (CIK) cell immunotherapy. J Transl Med 2016; 14:264. [PMID: 27620209 PMCID: PMC5020454 DOI: 10.1186/s12967-016-1024-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Accepted: 08/30/2016] [Indexed: 01/10/2023] Open
Abstract
Background Cytokine-induced-killer (CIK) cells are a promising immunotherapeutic approach for impending relapse following hematopoietic stem cell transplantation (HSCT). However, there is a high risk for treatment failure associated with severe graft versus host disease (GvHD) necessitating pharmaceutical intervention post-transplant. Whether immunosuppression with mycophenolate mofetil (MMF) or Ciclosporin A (CsA) influences the cytotoxic effect of CIK cell immunotherapy is still an open issue. Methods CIK cells were generated from PBMC as previously described followed by co-incubation with mycophenolic acid (MPA) or CsA. Proliferation, cytotoxicity and receptor expression were investigated following short- (24 h), intermediate- (3 days) and long-term (7 days) MPA incubation with the intention to simulate the in vivo situation when CIK cells were given to a patient with relevant MPA/CsA plasma levels. Results Short-term MPA treatment led to unchanged proliferation capacity and barely had any effect on viability and cytotoxic capability in vitro. The composition of CIK cells with respect to T-, NK-like T- and NK cells remained stable. Intermediate MPA treatment lacked effects on NKG2D, FasL and TRAIL receptor expression, while an influence on proliferation and viability was detectable. Furthermore, long-term treatment significantly impaired proliferation, restricted viability and drastically reduced migration-relevant receptors accompanied by an alteration in the CD4/CD8 ratio. CD3+CD56+ cells upregulated receptors relevant for CIK cell killing and migration, whereas T cells showed the most interference through significant reductions in receptor expression. Interestingly, CsA treatment had no significant influence on CIK cell viability and the cytotoxic potential against K562. Conclusions Our data indicate that if immunosuppressant therapy is indispensable, efficacy of CIK cells is maintained at least short-term, although more frequent dosing might be necessary. Electronic supplementary material The online version of this article (doi:10.1186/s12967-016-1024-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Melanie Bremm
- Clinic for Pediatric and Adolescent Medicine, University Hospital, Theodor-Stern-Kai 7, 60596, Frankfurt/Main, Germany.
| | - Sabine Huenecke
- Clinic for Pediatric and Adolescent Medicine, University Hospital, Theodor-Stern-Kai 7, 60596, Frankfurt/Main, Germany
| | - Olga Zimmermann
- Clinic for Pediatric and Adolescent Medicine, University Hospital, Theodor-Stern-Kai 7, 60596, Frankfurt/Main, Germany
| | - Verena Pfirrmann
- Clinic for Pediatric and Adolescent Medicine, University Hospital, Theodor-Stern-Kai 7, 60596, Frankfurt/Main, Germany
| | - Andrea Quaiser
- Clinic for Pediatric and Adolescent Medicine, University Hospital, Theodor-Stern-Kai 7, 60596, Frankfurt/Main, Germany
| | - Halvard Bonig
- Division for Translational Development of Cellular Therapeutics, Institute for Transfusion Medicine and Immunohematology, Goethe-University Frankfurt/Main, Frankfurt/Main, Germany.,German Red Cross Blood Donor Service Baden-Württemberg-Hessen, Frankfurt/Main, Germany
| | - Jan Soerensen
- Clinic for Pediatric and Adolescent Medicine, University Hospital, Theodor-Stern-Kai 7, 60596, Frankfurt/Main, Germany
| | - Thomas Klingebiel
- Clinic for Pediatric and Adolescent Medicine, University Hospital, Theodor-Stern-Kai 7, 60596, Frankfurt/Main, Germany
| | - Eva Rettinger
- Clinic for Pediatric and Adolescent Medicine, University Hospital, Theodor-Stern-Kai 7, 60596, Frankfurt/Main, Germany
| | - Peter Bader
- Clinic for Pediatric and Adolescent Medicine, University Hospital, Theodor-Stern-Kai 7, 60596, Frankfurt/Main, Germany
| | - Claudia Cappel
- Clinic for Pediatric and Adolescent Medicine, University Hospital, Theodor-Stern-Kai 7, 60596, Frankfurt/Main, Germany
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18
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Jaiswal SR, Chakrabarti A, Chatterjee S, Ray K, Chakrabarti S. Haploidentical transplantation in children with unmanipulated peripheral blood stem cell graft: The need to look beyond post-transplantation cyclophosphamide in younger children. Pediatr Transplant 2016; 20:675-82. [PMID: 27217372 DOI: 10.1111/petr.12724] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/26/2016] [Indexed: 12/21/2022]
Abstract
Haploidentical transplantation with PTCY following marrow or PBSC graft has been associated with low incidence of GVHD in adults with similar data lacking in children. We report on the outcome of 25 patients <20 yr of age (median age 12 yr), undergoing a haploidentical PBSC transplantation for both malignant and non-malignant disorders. Engraftment was prompt and sustained. Cumulative incidences of acute GVHD and chronic GVHD were 40.3% and 16.7%, respectively. On subgroup analysis, it was evident that acute GVHD developed in 80% of patients <10 yr compared to only 13.3% in those between 10 and 20 yr [log-rank p = 0.001], despite similar graft composition with significantly higher NRM (60% vs. 0%; p = 0.001). The FFS was 63.5%; (79% in >10 yr and 40% in <10 yr, p = 0.01). Our data suggest that PTCY-based haploidentical PBSC transplantation is feasible in older children, but results in early and severe alloreactivity in younger children. These findings, despite being counterintuitive, could be explained by the variable metabolism of CY and oral mycophenolate in younger children indicating that PTCY-based approach as used in adults might not be adequate for younger children.
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Affiliation(s)
- Sarita Rani Jaiswal
- Department of Blood and Marrow Transplantation, Dharamshila Hospital and Research Centre, New Delhi, India.,Manashi Chakrabarti Foundation, Kolkata, India
| | | | - Sumita Chatterjee
- Manashi Chakrabarti Foundation, Kolkata, India.,Apollo Gleneagles Hospital, Kolkata, India
| | - Kunal Ray
- CSIR-Indian Institute of Chemical Biology, Kolkata, India.,Academy of Scientific and Innovative Research, CSIR-CRRI, New Delhi, India
| | - Suparno Chakrabarti
- Department of Blood and Marrow Transplantation, Dharamshila Hospital and Research Centre, New Delhi, India.,Manashi Chakrabarti Foundation, Kolkata, India
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19
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Rustia E, Violago L, Jin Z, Foca MD, Kahn JM, Arnold S, Sosna J, Bhatia M, Kung AL, George D, Garvin JH, Satwani P. Risk Factors and Utility of a Risk-Based Algorithm for Monitoring Cytomegalovirus, Epstein-Barr Virus, and Adenovirus Infections in Pediatric Recipients after Allogeneic Hematopoietic Cell Transplantation. Biol Blood Marrow Transplant 2016; 22:1646-1653. [PMID: 27252110 DOI: 10.1016/j.bbmt.2016.05.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 05/11/2016] [Indexed: 10/21/2022]
Abstract
Infectious complications, particularly viral infections, remain a significant cause of morbidity and mortality after allogeneic hematopoietic cell transplantation (alloHCT). Only a handful of studies in children have analyzed the risks for and impact of viremia on alloHCT-related outcomes. We conducted a retrospective study of 140 pediatric patients undergoing alloHCT to investigate the incidence of and risk factors for cytomegalovirus (CMV), adenovirus (ADV), and Epstein-Barr virus (EBV) viremia and viral disease after alloHCT. Furthermore, we assessed the impact of viremia on days of hospitalization and develop an algorithm for routine monitoring of viremia. Patients were monitored before alloHCT and then weekly for 180 days after alloHCT. Patients were considered to have viremia if CMV were > 600 copies/mL, EBV were > 1000 copies/mL, or ADV were > 1000 copies/mL on 2 consecutive PCRs. The overall incidences of viremia and viral disease in all patients from day 0 to +180 after alloHCT were 41.4% (n = 58) and 17% (n = 24), respectively. The overall survival for patients with viremia and viral disease was significantly lower compared with those without viremia (58% versus 74.2%, P = .03) and viral disease (48.2% versus 71.2%, P = .024). We identified that pretransplantation CMV risk status, pre-alloHCT viremia, and use of alemtuzumab were associated with the risk of post-alloHCT viremia. The average hospitalization days in patients with CMV risk (P = .011), viremia (P = .024), and viral disease (P = .002) were significantly higher. The algorithm developed from our data can potentially reduce viral PCR testing by 50% and is being studied prospectively at our center. Improved preventative treatment strategies for children at risk of viremia after alloHCT are needed.
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Affiliation(s)
- Evelyn Rustia
- Department of Pediatrics, Columbia University Medical Center, New York, New York
| | - Leah Violago
- Department of Nursing, New York-Presbyterian Morgan Stanley Children's Hospital, New York, New York
| | - Zhezhen Jin
- Department of Biostatistics, Mailman School of Public Health, Columbia University, New York, New York
| | - Marc D Foca
- Department of Pediatrics, Columbia University Medical Center, New York, New York
| | - Justine M Kahn
- Department of Pediatrics, Columbia University Medical Center, New York, New York
| | - Staci Arnold
- Department of Pediatrics, Emory University, Atlanta, Georgia
| | - Jean Sosna
- Department of Pediatrics, Columbia University Medical Center, New York, New York
| | - Monica Bhatia
- Department of Pediatrics, Columbia University Medical Center, New York, New York
| | - Andrew L Kung
- Department of Pediatrics, Columbia University Medical Center, New York, New York
| | - Diane George
- Department of Pediatrics, Columbia University Medical Center, New York, New York
| | - James H Garvin
- Department of Pediatrics, Columbia University Medical Center, New York, New York
| | - Prakash Satwani
- Department of Pediatrics, Columbia University Medical Center, New York, New York.
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20
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Hibino S, Nagai T, Yamakawa S, Ito H, Tanaka K, Uemura O. Pharmacokinetics of mycophenolic acid in children with clinically stable idiopathic nephrotic syndrome receiving cyclosporine. Clin Exp Nephrol 2016; 21:152-158. [PMID: 27105859 DOI: 10.1007/s10157-016-1267-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 04/10/2016] [Indexed: 11/28/2022]
Abstract
BACKGROUND The suitable dosage regime of mycophenolate mofetil (MMF) based on the pharmacokinetics of mycophenoric acid (MPA) for pediatric patients with idiopathic nephrotic syndrome (INS) is controversial. The pharmacokinetics of MPA is influenced by renal function, serum albumin concentration, and concomitant medications, especially calcineurin inhibitors. This study analyzed the pharmacokinetics of MPA in clinically stable children with INS receiving cyclosporine (CyA). METHODS This retrospective study enrolled children with INS receiving MMF (Cellcept®) (30-40 mg/kg/day in two divided doses) combined with CyA (Neoral®) without relapse and renal dysfunction. Pharmacokinetic parameters, including the area under the concentration-time curve (AUC) calculated by the trapezoid method, were calculated from seven serial blood samples. RESULTS Thirty-two patients (22 males) of median age 11.0 years were included; 32 pharmacokinetic studies were performed. The median MMF dose was 16.2 mg/kg/time or 470.4 mg/m2/time. The median AUC0-12 was 44.3 ng h/mL. AUC0-12 of all patients showed excellent correlations with C2 (r 2 = 0.6405, P < 0.0001), resulting in a regression formula of AUC0-12 = 21.971 + 2.6059 C2. Comparisons of dose/body weight-normalized AUC0-12 values among age groups showed a lower value in the youngest group (≤5 years). CONCLUSION In children with clinically stable INS receiving CyA, C2 monitoring was the most useful single parameter for estimating MPA pharmacokinetics. Younger children required higher MMF doses.
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Affiliation(s)
- Satoshi Hibino
- Pediatric Nephrology, Aichi Children's Health and Medical Center, Aichi, Japan. .,Department of Pediatrics, Showa University School of Medicine, Tokyo, Japan.
| | - Takuhito Nagai
- Pediatric Nephrology, Aichi Children's Health and Medical Center, Aichi, Japan
| | - Satoshi Yamakawa
- Pediatric Nephrology, Aichi Children's Health and Medical Center, Aichi, Japan
| | - Hidekazu Ito
- Pediatric Nephrology, Aichi Children's Health and Medical Center, Aichi, Japan
| | - Kazuki Tanaka
- Pediatric Nephrology, Aichi Children's Health and Medical Center, Aichi, Japan
| | - Osamu Uemura
- Pediatric Nephrology, Aichi Children's Health and Medical Center, Aichi, Japan
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21
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A Pilot Study of Continuous Infusion of Mycophenolate Mofetil for Prophylaxis of Graft-versus-Host-Disease in Pediatric Patients. Biol Blood Marrow Transplant 2016; 22:682-689. [DOI: 10.1016/j.bbmt.2015.12.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 12/15/2015] [Indexed: 12/30/2022]
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22
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Zahler S, Bhatia M, Ricci A, Roy S, Morris E, Harrison L, van de Ven C, Fabricatore S, Wolownik K, Cooney-Qualter E, Baxter-Lowe LA, Luisi P, Militano O, Kletzel M, Cairo MS. A Phase I Study of Reduced-Intensity Conditioning and Allogeneic Stem Cell Transplantation Followed by Dose Escalation of Targeted Consolidation Immunotherapy with Gemtuzumab Ozogamicin in Children and Adolescents with CD33+ Acute Myeloid Leukemia. Biol Blood Marrow Transplant 2016; 22:698-704. [PMID: 26785332 DOI: 10.1016/j.bbmt.2016.01.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 01/11/2016] [Indexed: 10/22/2022]
Abstract
Myeloablative conditioning and allogeneic hematopoietic stem cell transplant (alloHSCT) in children with acute myeloid leukemia (AML) in first complete remission (CR1) may be associated with significant acute toxicity and late effects. Reduced-intensity conditioning (RIC) and alloHSCT in children is safe, feasible, and may be associated with less adverse effects. Gemtuzumab ozogamicin (GO) induces a response in 30% of patients with CD33+ relapsed/refractory AML. The dose of GO is significantly lower when combined with chemotherapy. We examined the feasibility and toxicity of RIC alloHSCT followed by GO targeted immunotherapy in children with CD33+ AML in CR1/CR2. Conditioning consisted of fludarabine 30 mg/m2 × 6 days, busulfan 3.2 to 4 mg/kg × 2 days ± rabbit antithymocyte globulin 2 mg/kg × 4 days followed by alloHSCT from matched related/unrelated donors. GO was administered ≥60 days after alloHSCT in 2 doses (8 weeks apart), following a dose-escalation design (4.5, 6, 7.5, and 9 mg/m2). Fourteen patients with average risk AML received RIC alloHSCT and post-GO consolidation: median age 13.5 years at transplant (range, 1 to 21), male-to-female 8:6, and disease status at alloHSCT 11 CR1 and 3 CR2. Eleven patients received alloHSCT from 5-6/6 HLA-matched family donors: 8 received peripheral blood stem cells, 2 received bone marrow, and 1 received related cord blood transplantation. Three patients received an unrelated allograft (two 4-5/6 and one 9/10) from unrelated cord blood unit and bone marrow, respectively. Neutrophil and platelet engraftment was observed in all assessable patients (100%), achieved at median 15.5 days (range, 7 to 31) and 21 days (range, 10 to 52), respectively. Three patients received GO at dose level 1 (4.5 mg/m2 per dose), 5 at dose level 2 (6 mg/m2 per dose), 3 at dose level 3 (7.5 mg/m2 per dose), and 3 at dose level 4 (9 mg/m2 per dose). Three of 14 patients received only 1 dose of GO after alloHSCT. One patient experienced grade III transaminitis, which resolved; no grade IV transaminitis, no grade III/IV hyperbilirubinemia, or sinusoidal obstructive syndrome were observed. The second dose of GO was given at median of 143 days (range, 120 to 209) after alloHSCT. Probability of grades II to IV acute and chronic graft-versus-host disease were 21% and 33.5%, respectively. Probability of overall survival after RIC alloHSCT and GO consolidation at 1 and 5 years was 78% and 61%, respectively. Probability of 5-year event-free survival after RIC alloHSCT and GO consolidation in patients in CR1 was 78%. No dose-limiting toxicities probably or directly related to GO were observed in this cohort. This preliminary data demonstrate that RIC followed by alloHSCT and consolidation with GO appears to be safe in children and adolescents with CD33+ AML in CR1/CR2. A phase II trial is currently underway investigating this approach with a GO dose of 9 mg/m2 per dose.
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Affiliation(s)
- Stacey Zahler
- Department of Pediatrics, New York Medical College, Valhalla, New York
| | - Monica Bhatia
- Department of Pediatrics, Columbia University, New York, New York
| | - Angela Ricci
- Department of Pediatrics, Columbia University, New York, New York
| | - Sumith Roy
- Department of Pediatrics, New York Medical College, Valhalla, New York
| | - Erin Morris
- Department of Pediatrics, New York Medical College, Valhalla, New York
| | - Lauren Harrison
- Department of Pediatrics, New York Medical College, Valhalla, New York
| | | | | | - Karen Wolownik
- Department of Pediatrics, New York Medical College, Valhalla, New York
| | | | - Lee Ann Baxter-Lowe
- Department of Pathology, Children's Hospital of Los Angeles, Los Angeles, California
| | - Paul Luisi
- Department of Pediatrics, New York Medical College, Valhalla, New York
| | - Olga Militano
- Department of Pediatrics, New York Medical College, Valhalla, New York
| | - Morris Kletzel
- Department of Pediatrics, Northwestern University, Chicago, Illinois
| | - Mitchell S Cairo
- Department of Pediatrics, New York Medical College, Valhalla, New York; Departments of Medicine, Pathology, Microbiology and Immunology, and Cell Biology and Anatomy, New York Medical College, Valhalla, New York.
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23
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Geyer MB, Radhakrishnan K, Giller R, Umegaki N, Harel S, Kiuru M, Morel KD, LeBoeuf N, Kandel J, Bruckner A, Fabricatore S, Chen M, Woodley D, McGrath J, Baxter-Lowe L, Uitto J, Christiano AM, Cairo MS. Reduced Toxicity Conditioning and Allogeneic Hematopoietic Progenitor Cell Transplantation for Recessive Dystrophic Epidermolysis Bullosa. J Pediatr 2015; 167:765-9.e1. [PMID: 26148662 DOI: 10.1016/j.jpeds.2015.05.051] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 04/03/2015] [Accepted: 05/26/2015] [Indexed: 10/23/2022]
Abstract
Recessive dystrophic epidermolysis bullosa is a severe, incurable, inherited blistering disease caused by COL7A1 mutations. Emerging evidence suggests hematopoietic progenitor cells (HPCs) can be reprogrammed into skin; HPC-derived cells can restore COL7 expression in COL7-deficient mice. We report two children with recessive dystrophic epidermolysis bullosa treated with reduced-toxicity conditioning and HLA-matched HPC transplantation.
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Affiliation(s)
- Mark B Geyer
- Department of Medicine (Hematology and Medical Oncology), Memorial Sloan-Kettering Cancer Center, New York, NY
| | - Kavita Radhakrishnan
- Department of Pediatrics, University of California, San Francisco, San Francisco, CA
| | - Roger Giller
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO
| | - Noriko Umegaki
- Department of Dermatology, Columbia University, New York, NY
| | - Sivan Harel
- Department of Dermatology, Columbia University, New York, NY
| | - Maija Kiuru
- Department of Medicine (Dermatology Service), Memorial Sloan-Kettering Cancer Center, New York, NY; Department of Dermatology, Weill Cornell Medical College, New York, NY
| | - Kimberly D Morel
- Department of Dermatology, Columbia University, New York, NY; Department of Pediatrics, Columbia University, New York, NY
| | - Nicole LeBoeuf
- Department of Dermatology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Jessica Kandel
- Department of Surgery, The University of Chicago Medicine Comer Children's Hospital, Chicago, IL
| | - Anna Bruckner
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO; Department of Dermatology, University of Colorado School of Medicine, Aurora, CO
| | | | - Mei Chen
- Department of Dermatology, University of Southern California, Los Angeles, CA
| | - David Woodley
- Department of Dermatology, University of Southern California, Los Angeles, CA
| | - John McGrath
- Department of Genetics and Molecular Medicine, King's College, London, United Kingdom
| | - LeeAnn Baxter-Lowe
- Department of Pathology and Laboratory Medicine, Children's Hospital of Los Angeles, Los Angeles, CA
| | - Jouni Uitto
- Department of Dermatology and Cutaneous Biology, The Thomas Jefferson University, Philadelphia, PA
| | - Angela M Christiano
- Department of Dermatology, Columbia University, New York, NY; Department of Genetics, Columbia University, New York, NY
| | - Mitchell S Cairo
- Department of Pediatrics, New York Medical College, Valhalla, NY; Department of Medicine, New York Medical College, Valhalla, NY; Department of Pathology, New York Medical College, Valhalla, NY; Department of Microbiology and Immunology, New York Medical College, Valhalla, NY; Department of Cell Biology and Anatomy, New York Medical College, Valhalla, NY.
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Sobiak J, Resztak M, Ostalska-Nowicka D, Zachwieja J, Gąsiorowska K, Piechanowska W, Chrzanowska M. Monitoring of mycophenolate mofetil metabolites in children with nephrotic syndrome and the proposed novel target values of pharmacokinetic parameters. Eur J Pharm Sci 2015; 77:189-96. [PMID: 26102431 DOI: 10.1016/j.ejps.2015.06.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2015] [Revised: 05/22/2015] [Accepted: 06/19/2015] [Indexed: 11/30/2022]
Abstract
The aim of the study was to estimate target values of mycophenolate mofetil (MMF) pharmacokinetic parameters in children with proteinuric glomerulopathies by calculating the pharmacokinetic parameters of MMF metabolites (mycophenolic acid [MPA], free MPA [fMPA] and MPA glucuronide [MPAG]) and assessing their relation to proteinuria recurrence. One hundred and sixty-eight blood samples were collected from children, aged 3-18 years, diagnosed with nephrotic syndrome or lupus nephritis. MMF metabolites concentrations were examined before drug administration (Ctrough) and up to 12h afterward employing high-performance liquid chromatography. Dose-normalized MPA Ctrough and area under the concentration-time curve from 0 to 12h (AUC12) were within 0.29-6.47 μg/mL/600 mg/m(2) and 9.97-105.52 μg h/mL/600 mg/m(2), respectively. MPA Ctrough was twofold lower (p=0.024) in children with proteinuria recurrence. MPA, fMPA and MPAG concentrations correlated positively to respective AUC12. It may be suggested MMF metabolites monitoring in children with proteinuric glomerulopathies is justified by MPA Ctrough<2 μg/mL in patients at risk of the proteinuria recurrence. Such a recurrence is most probably caused by not sufficient MPA concentration during proteinuric glomerulopathies treatment. MPA Ctrough>3 μg/mL may be considered as an efficient one to avoid proteinuria recurrence. Finally, MPA target AUC12 should exceed 60 μg h/mL to ensure the safe and effective treatment in children with nephrotic syndrome, however, the upper limit is still to be established.
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Affiliation(s)
- Joanna Sobiak
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Swiecickiego Street, 60-781 Poznan, Poland.
| | - Matylda Resztak
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Swiecickiego Street, 60-781 Poznan, Poland
| | - Danuta Ostalska-Nowicka
- Department of Pediatric Cardiology and Nephrology, Poznan University of Medical Sciences, 27/33 Szpitalna Street, 60-572 Poznan, Poland
| | - Jacek Zachwieja
- Department of Pediatric Cardiology and Nephrology, Poznan University of Medical Sciences, 27/33 Szpitalna Street, 60-572 Poznan, Poland
| | - Karolina Gąsiorowska
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Swiecickiego Street, 60-781 Poznan, Poland
| | - Wiktoria Piechanowska
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Swiecickiego Street, 60-781 Poznan, Poland
| | - Maria Chrzanowska
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 6 Swiecickiego Street, 60-781 Poznan, Poland
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25
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Levinson A, Pinkney K, Jin Z, Bhatia M, Kung AL, Foca MD, George D, Garvin JH, Sosna J, Karamehmet E, Robinson C, Satwani P. Acute Gastrointestinal Graft-vs-Host Disease Is Associated With Increased Enteric Bacterial Bloodstream Infection Density in Pediatric Allogeneic Hematopoietic Cell Transplant Recipients. Clin Infect Dis 2015; 61:350-7. [DOI: 10.1093/cid/civ285] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 03/09/2015] [Indexed: 12/26/2022] Open
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26
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Harnicar S, Ponce DM, Hilden P, Zheng J, Devlin SM, Lubin M, Pozotrigo M, Mathew S, Adel N, Kernan NA, O'Reilly R, Prockop S, Scaradavou A, Hanash A, Jenq R, van den Brink M, Giralt S, Perales MA, Young JW, Barker JN. Intensified Mycophenolate Mofetil Dosing and Higher Mycophenolic Acid Trough Levels Reduce Severe Acute Graft-versus-Host Disease after Double-Unit Cord Blood Transplantation. Biol Blood Marrow Transplant 2015; 21:920-5. [PMID: 25687796 DOI: 10.1016/j.bbmt.2015.01.024] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 01/28/2015] [Indexed: 12/18/2022]
Abstract
Although mycophenolate mofetil (MMF) has replaced corticosteroids as immunosuppression in cord blood transplantation (CBT), optimal MMF dosing has yet to be established. We intensified MMF dosing from every 12 to every 8 hours to augment graft-versus-host disease (GVHD) prophylaxis in double-unit cord blood transplantation (dCBT) and evaluated outcomes according to the total daily MMF dose/kg in 174 dCBT recipients (median age, 39 years; range, 1 to 71) who underwent transplantation for hematologic malignancies. Recipients of an MMF dose ≤ the median (36 mg/kg/day) had an increased day 100 grade III and IV acute GVHD (aGVHD) incidence compared with patients who received >36 mg/kg/day (24% versus 8%, P = .008). Recipients of ≤ the median dose who had highly HLA allele (1 to 3 of 6) mismatched dominant units had the highest day 100 grade III and IV aGVHD incidence of 37% (P = .009). This finding was confirmed in multivariate analysis (P = .053). In 83 patients evaluated for mycophenolic acid (MPA) troughs, those with a mean week 1 and 2 trough < .5 μg/mL had an increased day 100 grade III and IV aGVHD of 26% versus 9% (P = .063), and those who received a low total daily MMF dose and had a low mean week 1 and 2 MPA trough had a 40% incidence (P = .008). Higher MMF dosing or MPA troughs had no impact on engraftment after myeloablation. This analysis supports intensified MMF dosing in milligram per kilogram per day and MPA trough level monitoring early after transplantation in dCBT recipients.
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Affiliation(s)
- Stephen Harnicar
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Pharmacy, Memorial Sloan Kettering Cancer Center, New York, New York.
| | - Doris M Ponce
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Patrick Hilden
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Junting Zheng
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Sean M Devlin
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Marissa Lubin
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Melissa Pozotrigo
- Department of Pharmacy, Memorial Sloan Kettering Cancer Center, New York, New York; Bone Marrow Transplantation Service, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Sherry Mathew
- Department of Pharmacy, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Nelly Adel
- Department of Pharmacy, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Nancy A Kernan
- Bone Marrow Transplantation Service, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Richard O'Reilly
- Bone Marrow Transplantation Service, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Susan Prockop
- Bone Marrow Transplantation Service, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Andromachi Scaradavou
- Bone Marrow Transplantation Service, Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Alan Hanash
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Robert Jenq
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Marcel van den Brink
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Sergio Giralt
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Miguel A Perales
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Medicine, Weill Cornell Medical College, New York, New York
| | - James W Young
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Juliet N Barker
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York; Department of Medicine, Weill Cornell Medical College, New York, New York
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Optimizing drug therapy in pediatric SCT: focus on pharmacokinetics. Bone Marrow Transplant 2014; 50:165-72. [PMID: 25347008 DOI: 10.1038/bmt.2014.235] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Revised: 08/08/2014] [Accepted: 08/27/2014] [Indexed: 12/19/2022]
Abstract
Given age-related differences in drug metabolism and indications for hematopoietic SCT (HSCT), personalized drug dosing of the conditioning regimen and post-transplant immunosuppression may reduce graft rejection, relapse rates and toxicity in pediatric HSCT recipients. This manuscript summarizes the pharmacokinetic/dynamic data of HSCT conditioning and post-grafting immunosuppression, presented at the First Annual Pediatric Bone Marrow Transplant Consortium (PBMTC) meeting in April 2013. Personalized dosing of BU to a target plasma exposure reduces graft rejection in children and improves relapse/toxicity rates in adults. Current weight-based dosing achieves the target BU exposure in only a minority (24.3%) of children. The initial BU dose should be based on the European Medicines Agency nomogram or population pharmacokinetic models to improve the numbers of children achieving the target exposure. There are limited pharmacokinetic data for treosulfan, CY, fludarabine and alemtuzumab as HSCT conditioning in children. For post-grafting immunosuppression, mycophenolic acid (MPA) clearance may be increased in younger children (<12 years). The preferred MPA pharmacokinetic monitoring parameters and target range are still evolving in HSCT recipients. Multi-institutional trials incorporating properly powered pharmacokinetic/dynamic studies are needed to assess the effect of variability in the plasma exposure of drugs/metabolites on clinical outcomes in pediatric HSCT recipients.
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Brehm C, Huenecke S, Esser R, Kloess S, Quaiser A, Betz S, Zimmermann O, Soerensen J, Passweg JR, Klingebiel T, Schwabe D, Bader P, Koehl U. Interleukin-2-stimulated natural killer cells are less susceptible to mycophenolate mofetil than non-activated NK cells: possible consequences for immunotherapy. Cancer Immunol Immunother 2014; 63:821-33. [PMID: 24806448 PMCID: PMC11028798 DOI: 10.1007/s00262-014-1556-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Accepted: 04/22/2014] [Indexed: 01/05/2023]
Abstract
In a clinical phase I/II trial, pediatric patients with high-risk malignancies were treated with ex vivo IL-2-stimulated donor natural killer (NK) cells after transplantation with haploidentical stem cells. To evaluate the potential negative effects of the immunosuppressive drug mycophenolate mofetil (MMF) used for immunotherapy, the functionality and signaling of ex vivo NK cells was investigated. Our results show that during NK cell expansion, long-term (9 days) incubation with mycophenolic acid (MPA), the active metabolite of MMF, in therapeutically relevant concentrations led to the severe inhibition of NK cell proliferation. This correlated with a significantly reduced cytokine/chemokine secretion and the inhibited acquisition of surface receptors regarding cytotoxicity (e.g., NKp30, NKp44, NKp46, NKG2D), adhesion/migration (e.g., ICAM-1/CD54, LFA-1/CD11a, CD62L, CXCR3) and activation (e.g., CD25). Moreover, MPA prevented phosphorylation of the central signaling molecules STAT-3/-4/-5, AKT and ERK1/2. In contrast, short-term (24 h) MPA incubation of IL-2-stimulated NK cells had no or only marginal effects on the activated NK cell phenotype, including receptor expression, cytokine/chemokine secretion and intracellular signaling. Further, short-term MPA incubation only moderately affected the highly cytotoxic activity of previously IL-2-stimulated NK cells. In conclusion, while long-term MPA incubation significantly compromised ex vivo NK cell functionality, previously IL-2-activated NK cells seemed to be rather resistant to short-term MPA treatment. This finding supports the use of IL-2-activated NK cells as immunotherapy, especially for patients treated with MMF after haploidentical stem cell transplantation.
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Affiliation(s)
- Claudia Brehm
- Clinic for Pediatric and Adolescent Medicine, University Hospital Frankfurt, Goethe University, Frankfurt/Main, Germany,
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McGuinn C, Geyer MB, Jin Z, Garvin JH, Satwani P, Bradley MB, Bhatia M, George D, Duffy D, Morris E, van de Ven C, Schwartz J, Baxter-Lowe LA, Cairo MS. Pilot trial of risk-adapted cyclophosphamide intensity based conditioning and HLA matched sibling and unrelated cord blood stem cell transplantation in newly diagnosed pediatric and adolescent recipients with acquired severe aplastic anemia. Pediatr Blood Cancer 2014; 61:1289-94. [PMID: 24623601 DOI: 10.1002/pbc.24976] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Accepted: 01/16/2014] [Indexed: 12/18/2022]
Abstract
BACKGROUND Cyclophosphamide-based conditioning regimens and allogeneic hematopoietic stem cell transplantation (AlloHSCT) from matched related donors (MRD) has resulted in the highest survival rates in children and adolescents with acquired severe aplastic anemia (SAA). Time to transplant has consistently been associated with decreased overall survival. Reduced toxicity conditioning and AlloHSCT has been used successfully in other pediatric non-malignant diseases. PROCEDURE We piloted a risk-adapted AlloHSCT approach, using fludarabine and anti-thymocyte globulin based conditioning with high (200 mg/kg) and low (60 mg/kg) dose cyclophosphamide as upfront treatment in newly diagnosed pediatric patients with acquired SAA incorporating alternative donor sources, including cord blood. Average risk for non-engraftment patients with <10 transfusions received low dose cyclophosphamide (60 mg/kg); High Risk, those with ≥10 transfusions received conditioning regimen with higher intensity cyclophosphamide (200 mg/kg). RESULTS Seventeen patients were enrolled and underwent AlloHSCT including 12 males and 5 females with mean age of 8 years (range 3-16), and median follow-up time of 39 months (range 1-135). Donor sources included MRD BM (6/6 [n = 9], 5/6 [n = 2]) and unrelated CB (5/6 [n = 4], 4/6 [n = 2]). Five year OS was 67.6% (37.9-85.4). Three secondary graft failures (17.6%) occurred in the low dose cyclophosphamide arm. CONCLUSIONS Upfront treatment with risk-adapted cyclophosphamide conditioning AlloSCT is well tolerated for the management of newly diagnosed pediatric and adolescent patients with acquired SAA. However, the increased risk of graft rejection in the lower dose arm warrants additional research regarding the optimal intensity of cyclophosphamide-based conditioning regimen to reduce toxicity without increasing graft failure.
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Affiliation(s)
- Catherine McGuinn
- Department of Pediatrics, Weill Cornell Medical College, New York, New York
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30
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Sequential myeloablative autologous stem cell transplantation and reduced intensity allogeneic hematopoietic cell transplantation is safe and feasible in children, adolescents and young adults with poor-risk refractory or recurrent Hodgkin and non-Hodgkin lymphoma. Leukemia 2014; 29:448-55. [PMID: 24938649 DOI: 10.1038/leu.2014.194] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 05/23/2014] [Accepted: 06/02/2014] [Indexed: 12/28/2022]
Abstract
The outcome of children, adolescents and young adults (CAYA) with poor-risk recurrent/refractory lymphoma is dismal (⩽30%). To overcome this poor prognosis, we designed an approach to maximize an allogeneic graft vs lymphoma effect in the setting of low disease burden. We conducted a multi-center prospective study of myeloablative conditioning (MAC) and autologous stem cell transplantation (AutoSCT), followed by a reduced intensity conditioning (RIC) and allogeneic hematopoietic cell transplantation (AlloHCT) in CAYA, with poor-risk refractory or recurrent lymphoma. Conditioning for MAC AutoSCT consisted of carmustine/etoposide/cyclophosphamide, RIC consisted of busulfan/fludarabine. Thirty patients, 16 Hodgkin lymphoma (HL) and 14 non-Hodgkin lymphoma (NHL), with a median age of 16 years and median follow-up of 5years, were enrolled. Twenty-three patients completed both MAC AutoSCT and RIC AlloHCT. Allogeneic donor sources included unrelated cord blood (n=9), unrelated donor (n=8) and matched siblings (n=6). The incidence of transplant-related mortality following RIC AlloHCT was only 12%. In patients with HL and NHL, 10 year EFS was 59.8% and 70% (P=0.613), respectively. In summary, this approach is safe, and long-term EFS with this approach is encouraging considering the poor-risk patient characteristics and the use of unrelated donors for RIC AlloHCT in the majority of cases.
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31
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Talano JM, Pulsipher MA, Symons HJ, Militano O, Shereck EB, Giller RH, Hancock L, Morris E, Cairo MS. New frontiers in pediatric Allo-SCT. Bone Marrow Transplant 2014; 49:1139-45. [PMID: 24820213 DOI: 10.1038/bmt.2014.89] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Revised: 03/13/2014] [Accepted: 03/15/2014] [Indexed: 01/02/2023]
Abstract
The inaugural meeting of 'New Frontiers in Pediatric Allogeneic Stem Cell Transplantation' organized by the Pediatric Blood and Transplant Consortium (PBMTC) was held at the American Society of Pediatric Hematology and Oncology Annual Meeting. This meeting provided an international platform for physicians and investigators active in the research and utilization of pediatric Allo-SCT in children and adolescents with malignant and non-malignant disease (NMD), to share information and develop future collaborative strategies. The primary objectives of the conference included: (1) to present advances in Allo-SCT in pediatric ALL and novel pre and post-transplant immunotherapy; (2) to highlight new strategies in alternative allogeneic stem cell donor sources for children and adolescents with non-malignant hematological disorders; (3) to discuss timing of immune reconstitution after Allo-SCT and methods of facilitating more rapid recovery of immunity; (4) to identify strategies of utilizing Allo-SCT in pediatric myeloproliferative disorders; (5) to develop diagnostic and therapeutic approaches to hematological complications post pediatric Allo-SCT; (6) to enhance the understanding of new novel cellular therapeutic approaches to pediatric malignant and non-malignant hematological disorders; and (7) to discuss optimizing drug therapy in pediatric recipients of Allo-SCT. This paper will provide a brief overview of the conference.
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Affiliation(s)
- J M Talano
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA
| | - M A Pulsipher
- Department of Pediatrics, University of Utah, Salt Lake City, UT, USA
| | - H J Symons
- Department of Oncology, Johns Hopkins Hospital, Baltimore, MD, USA
| | - O Militano
- Department of Pediatrics, New York Medical College, Valhalla, NY, USA
| | - E B Shereck
- Oregon Health and Science University, Portland, OR, USA
| | - R H Giller
- Children's Hospital Colorado, Aurora, CO, USA
| | - L Hancock
- Pediatric Blood and Marrow Transplant Consortium, Monrovia, CA, USA
| | - E Morris
- Department of Pediatrics, New York Medical College, Valhalla, NY, USA
| | - M S Cairo
- 1] Department of Pediatrics, New York Medical College, Valhalla, NY, USA [2] Department of Medicine, New York Medical College, Valhalla, NY, USA [3] Department of Pathology, New York Medical College, Valhalla, NY, USA [4] Department of Microbiology and Immunology, New York Medical College, Valhalla, NY, USA [5] Department of Cell Biology and Anatomy, New York Medical College, Valhalla, NY, USA
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32
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Reduced toxicity, myeloablative conditioning with BU, fludarabine, alemtuzumab and SCT from sibling donors in children with sickle cell disease. Bone Marrow Transplant 2014; 49:913-20. [PMID: 24797180 DOI: 10.1038/bmt.2014.84] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2013] [Revised: 03/10/2014] [Accepted: 03/11/2014] [Indexed: 01/16/2023]
Abstract
BU and CY (BU/CY; 200 mg/kg) before HLA-matched sibling allo-SCT in children with sickle cell disease (SCD) is associated with ~85% EFS but is limited by the acute and late effects of BU/CY myeloablative conditioning. Alternatives include reduced toxicity but more immunosuppressive conditioning. We investigated in a prospective single institutional study, the safety and efficacy of a reduced-toxicity conditioning (RTC) regimen of BU 12.8-16 mg/kg, fludarabine 180 mg/m(2), alemtuzumab 54 mg/m(2) (BFA) before HLA-matched sibling donor transplantation in pediatric recipients with symptomatic SCD. Eighteen patients, median age 8.9 years (2.3-20.2), M/F 15/3, 15 sibling BM and 3 sibling cord blood (CB) were transplanted. Mean whole blood and erythroid donor chimerism was 91% and 88%, at days +100 and +365, respectively. Probability of grade II-IV acute GVHD was 17%. Two-year EFS and OS were both 100%. Neurological, pulmonary and cardiovascular function were stable or improved at 2 years. BFA RTC and HLA-matched sibling BM and CB allo-SCT in pediatric recipients result in excellent EFS, long-term donor chimerism, low incidence of GVHD and stable/improved organ function.
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Qualter E, Satwani P, Ricci A, Jin Z, Geyer MB, Alobeid B, Radhakrishnan K, Bye M, Middlesworth W, Della-Letta P, Behr G, Muniz M, van de Ven C, Harrison L, Morris E, Cairo MS. A comparison of bronchoalveolar lavage versus lung biopsy in pediatric recipients after stem cell transplantation. Biol Blood Marrow Transplant 2014; 20:1229-37. [PMID: 24769329 DOI: 10.1016/j.bbmt.2014.04.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 04/17/2014] [Indexed: 11/28/2022]
Abstract
Bronchoalveolar lavage (BAL) has been a useful initial diagnostic tool in the evaluation of pulmonary complications after hematopoietic stem cell transplantation (HSCT); however, the diagnostic sensitivity, prevalence, and outcome after BAL versus lung biopsy (LB) in pediatric HSCT patients remains to be determined. We reviewed 193 pediatric HSCT recipients who underwent a total of 235 HSCTs. Sixty-five patients (34%) underwent a total of 101 BALs for fever, respiratory distress, and/or pulmonary infiltrates on chest radiograph and/or computed tomography scan. The 1-year probability of undergoing BAL was 43.0% after allogeneic stem cell transplantation (alloSCT) and 8.5% after autologous stem cell transplantation (autoSCT) (P = .001). Sixteen of the 193 patients (8%) patients underwent 19 LBs. The probability of undergoing LB at 1 year after HSCT was 9.3%. No grade III or IV adverse events related to either procedure were observed. Of the 101 BALs performed, 40% (n = 40) were diagnostic, with a majority revealing a bacterial pathogen. Among the 19 LBs performed, 94% identified an etiology. In multivariate analysis, myeloablative conditioning alloSCT conferred the highest risk of requiring a BAL (hazard ratio [HR],8.5; P = .0002). The probability of 2-year overall survival was 20.2% in patients who underwent BAL, 17.5% for patients who underwent biopsy, and 67.4% for patients who had neither procedure. In multivariate analysis, only the requirement of a BAL was independently associated with an increased risk of mortality (HR, 2.96; P < .0001). In summary, in this cohort of pediatric HSCT recipients, BAL and LB were used in approximately 35% and 8% of pediatric HSCTs with diagnostic yields of approximately 40% and 94%, respectively, and were both associated with poor long-term outcomes.
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Affiliation(s)
- Erin Qualter
- Department of Pediatrics, Columbia University, New York, New York
| | - Prakash Satwani
- Department of Pediatrics, Columbia University, New York, New York
| | - Angela Ricci
- Department of Pediatrics, Columbia University, New York, New York
| | - Zhezhen Jin
- Department of Biostatistics, Columbia University, New York, New York
| | - Mark B Geyer
- Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Bachir Alobeid
- Department of Pathology and Cell Biology, Columbia University, New York, New York
| | | | - Michael Bye
- Department of Pediatrics, Columbia University, New York, New York
| | | | - Phyllis Della-Letta
- Department of Pathology and Cell Biology, Columbia University, New York, New York
| | - Gerald Behr
- Department of Radiology, Columbia University, New York, New York
| | - Miguel Muniz
- Department of Pediatrics, New York Medical College, Valhalla, New York
| | | | - Lauren Harrison
- Department of Pediatrics, New York Medical College, Valhalla, New York
| | - Erin Morris
- Department of Pediatrics, New York Medical College, Valhalla, New York
| | - Mitchell S Cairo
- Department of Pediatrics, New York Medical College, Valhalla, New York; Department of Medicine, New York Medical College, Valhalla, New York; Department of Pathology, New York Medical College, Valhalla, New York; Department of Microbiology and Immunology, New York Medical College, Valhalla, New York; Department of Cell Biology and Anatomy, New York Medical College, Valhalla, New York.
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McDermott CL, Sandmaier BM, Storer B, Li H, Mager DE, Boeckh MJ, Bemer MJ, Knutson J, McCune JS. Nonrelapse mortality and mycophenolic acid exposure in nonmyeloablative hematopoietic cell transplantation. Biol Blood Marrow Transplant 2013; 19:1159-66. [PMID: 23660171 PMCID: PMC3720781 DOI: 10.1016/j.bbmt.2013.04.026] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Accepted: 04/30/2013] [Indexed: 01/25/2023]
Abstract
We evaluated the pharmacodynamic relationships between mycophenolic acid (MPA), the active metabolite of mycophenolate mofetil (MMF), and outcomes in 308 patients after nonmyeloablative hematopoietic cell transplantation. Patients were conditioned with total body irradiation ± fludarabine, received grafts from HLA-matched related (n = 132) or unrelated (n = 176) donors, and received postgrafting immunosuppression with MMF and a calcineurin inhibitor. Total and unbound MPA pharmacokinetics were determined to day 25; maximum a posteriori Bayesian estimators were used to estimate total MPA concentration at steady state (Css). Rejection occurred in 9 patients, 8 of whom had a total MPA Css less than 3 μg/mL. In patients receiving a related donor graft, MPA Css was not associated with clinical outcomes. In patients receiving an unrelated donor graft, low total MPA Css was associated with increased grades III to IV acute graft-versus-host disease and increased nonrelapse mortality but not with day 28 T cell chimerism, disease relapse, cytomegalovirus reactivation, or overall survival. We conclude that higher initial oral MMF doses and subsequent targeting of total MPA Css to greater than 2.96 μg/mL could lower grades III to IV acute graft-versus-host disease and nonrelapse mortality in patients receiving an unrelated donor graft.
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Affiliation(s)
| | - Brenda M. Sandmaier
- School of Medicine, University of Washington, Seattle, WA, USA
- Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Barry Storer
- Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Hong Li
- University of Buffalo, Buffalo, NY, USA
| | | | - Michael J. Boeckh
- School of Medicine, University of Washington, Seattle, WA, USA
- Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | | | | | - Jeannine S. McCune
- School of Pharmacy, University of Washington, Seattle, WA, USA
- Fred Hutchinson Cancer Research Center, Seattle, WA, USA
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35
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Busulfan, Fludarabine, and Alemtuzumab Conditioning and Unrelated Cord Blood Transplantation in Children with Sickle Cell Disease. Biol Blood Marrow Transplant 2013; 19:676-7. [DOI: 10.1016/j.bbmt.2013.02.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Accepted: 02/04/2013] [Indexed: 11/21/2022]
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36
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Transplantation-Related Mortality, Graft Failure, and Survival after Reduced-Toxicity Conditioning and Allogeneic Hematopoietic Stem Cell Transplantation in 100 Consecutive Pediatric Recipients. Biol Blood Marrow Transplant 2013; 19:552-61. [DOI: 10.1016/j.bbmt.2012.12.005] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Accepted: 12/11/2012] [Indexed: 11/19/2022]
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37
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Abd Rahman AN, Tett SE, Staatz CE. Clinical Pharmacokinetics and Pharmacodynamics of Mycophenolate in Patients with Autoimmune Disease. Clin Pharmacokinet 2013; 52:303-31. [DOI: 10.1007/s40262-013-0039-8] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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38
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Downing HJ, Pirmohamed M, Beresford MW, Smyth RL. Paediatric use of mycophenolate mofetil. Br J Clin Pharmacol 2013; 75:45-59. [PMID: 22519685 PMCID: PMC3555046 DOI: 10.1111/j.1365-2125.2012.04305.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Accepted: 04/16/2012] [Indexed: 01/14/2023] Open
Abstract
A number of medications do not have a licence, or label, for use in the paediatric age group nor for the specific indication for which they are being used in children. Over recent years, mycophenolate mofetil has increasingly been used off-label (i.e. off-licence) in adults for a number of indications, including autoimmune conditions; progressively, this wider use has been extended to children. This review summarizes current use of mycophenolate mofetil (MMF) in children, looking at how MMF works, the pharmacokinetics, the clinical conditions for which it is used, the advantages it has when compared with other immunosuppressants and the unresolved issues remaining with use in children. The review aims to focus on off-label use in children so as to identify areas that require further research and investigation. The overall commercial value of MMF is limited because it has now come off patent in adults. Given the increasing knowledge of the pharmacodynamics, pharmacokinetics and pharmacogenomics demonstrating the clinical benefits of MMF, new, formal, investigator-led studies, including trials focusing on the use of MMF in children, would be of immense value.
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Affiliation(s)
- Heather J Downing
- Department of Women's and Children's Health, Institute of Translational Medicine, The University of Liverpool, Alder Hey Children's NHS Foundation TrustEaton Road, Liverpool L12 2AP, UK
| | - Munir Pirmohamed
- Department of Pharmacology and Therapeutics, The University of LiverpoolAshton Street, Liverpool L69 3GE, UK
| | - Michael W Beresford
- Department of Women's and Children's Health, Institute of Translational Medicine, The University of Liverpool, Alder Hey Children's NHS Foundation TrustEaton Road, Liverpool L12 2AP, UK
| | - Rosalind L Smyth
- Department of Women's and Children's Health, Institute of Translational Medicine, The University of Liverpool, Alder Hey Children's NHS Foundation TrustEaton Road, Liverpool L12 2AP, UK
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39
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Oberg JA, Bender JG, Morris E, Harrison L, Basch CE, Garvin JH, Sands SA, Cairo MS. Pediatric allo-SCT for malignant and non-malignant diseases: impact on health-related quality of life outcomes. Bone Marrow Transplant 2012; 48:787-93. [DOI: 10.1038/bmt.2012.217] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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40
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The pharmacokinetics and safety of twice daily i.v. BU during conditioning in pediatric allo-SCT recipients. Bone Marrow Transplant 2012; 48:19-25. [PMID: 22684047 DOI: 10.1038/bmt.2012.105] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Intravenous BU divided four times daily (q6 h) has been shown to be safe and effective in pediatric allo-SCT recipients. Though less frequent dosing is desirable, pharmacokinetic (PK) data on twice daily (q12 h) i.v. BU administration in pediatric allo-SCT recipients is limited. We prospectively examined the PK results in a cohort of pediatric allo-SCT recipients receiving i.v. BU q12 h as part of conditioning before allo-SCT. BU levels were obtained after the first dose of conditioning. PK parameter analysis (n=49) yielded the following 95% confidence intervals (CI₉₅): weight-normalized volume of distribution: 0.65-0.73 L/kg; t(1/2): 122-147 min; weight-normalized clearance (CL(n)): 3.4-4.3 mL/min/kg; and area under the curve: 1835-2180 mmol × min/L. From these results, a steady state concentration was calculated with CI₉₅ between 628-746 ng/mL. Comparison between recipients ≤4 vs >4 years old revealed significant differences in t(1/2) (mean: 115 vs 146 min, P=0.008) and CL(n) (mean: 4.4 vs 3.5 mL/min/kg, P=0.038). Intravenous BU q12 h had a comparable PK to i.v. BU q6 h PK seen in the literature, and in pediatric allo-SCT recipients, is a feasible, attractive alternative to i.v. q6h dosing.
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41
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Mycophenolate mofetil: fully utilizing its benefits for GvHD prophylaxis. Int J Hematol 2012; 96:10-25. [DOI: 10.1007/s12185-012-1086-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Revised: 04/18/2012] [Accepted: 04/19/2012] [Indexed: 10/28/2022]
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42
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Miyagi SJ, Milne AM, Coughtrie MWH, Collier AC. Neonatal development of hepatic UGT1A9: implications of pediatric pharmacokinetics. Drug Metab Dispos 2012; 40:1321-7. [PMID: 22492655 DOI: 10.1124/dmd.111.043752] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
This article reports on the development of UDP-glucuronosyltransferase 1A9 (UGT1A9) in neonatal and pediatric liver. The substrate 4-methylumbelliferone (4MU) with specific inhibition by niflumic acid was used to define specific UGT1A9 activity. Subsequently, in silico pharmacokinetic (PK) and physiology-based pharmacokinetic (PBPK) modeling was used to determine UGT1A9 maturation and hepatic clearance. Modeled maximal enzyme activity was 27.9 nmol · min(-1) · mg protein(-1) at 4 months of age, which had high concordance with the average V(max) in 45 individual adult (>20 years) livers of 29.0 nmol · min(-1) · mg protein(-1). The activity of UGT1A9 ranged 7.5-fold in the adult population (4.1-54.5 nmol · min(-1) · mg protein(-1)). Expression of UGT1A9 correlated with age only in children younger than 1 year (Spearman r = 0.70). Activity correlated with expression up to 18 years of age (Spearman r = 0.76). Furthermore, scaling intrinsic hepatic clearance of 4MU with an allometric PK model yielded a high clearance at birth and then fell to adult levels (1.3 l · h(-1) · kg(-1) at 18.1 years for well stirred or 1.4 l · h(-1) · kg(-1) at 18.7 years for parallel tube). The Simcyp PBPK models did not converge but showed an increase in clearance at under 1 year of age and then decreased to adult levels at approximately 20 years of age. Allometric scaling may be more accurate in cases of high-extraction drugs. Enzyme activities or hepatic clearances did not differ with gender or ethnicity. The UGT1A9 isoform has higher normalized clearance for 4MU at young ages, which may explain how other UGT1A9 substrates, such as propofol, have higher clearances in children than in adults.
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Affiliation(s)
- Shogo J Miyagi
- Department of Tropical Medicine, Medical Microbiology and Pharmacology, John A. Burns School of Medicine, University of Hawaii at Mānoa, 651 Ilalo St., BSB 320, Honolulu, HI 96813, USA
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43
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Geyer MB, Ricci AM, Jacobson JS, Majzner R, Duffy D, Ven C, Ayello J, Bhatia M, Garvin JH, George D, Satwani P, Harrison L, Morris E, Semidei-Pomales M, Schwartz J, Alobeid B, Baxter-Lowe LA, Cairo MS. T cell depletion utilizing CD34+ stem cell selection and CD3+ addback from unrelated adult donors in paediatric allogeneic stem cell transplantation recipients. Br J Haematol 2012; 157:205-19. [DOI: 10.1111/j.1365-2141.2012.09048.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Accepted: 12/27/2011] [Indexed: 01/27/2023]
Affiliation(s)
- Mark B. Geyer
- Department of Medicine; Massachusetts General Hospital; Harvard Medical School; Boston; MA
| | | | | | | | - Deirdre Duffy
- Department of Pediatrics; New York Medical College; Valhalla; NY
| | - Carmella Ven
- Department of Pediatrics; New York Medical College; Valhalla; NY
| | - Janet Ayello
- Department of Pediatrics; New York Medical College; Valhalla; NY
| | | | | | | | | | - Lauren Harrison
- Department of Pediatrics; New York Medical College; Valhalla; NY
| | - Erin Morris
- Department of Pediatrics; New York Medical College; Valhalla; NY
| | | | - Joseph Schwartz
- Department of Pathology and Cell Biology; Columbia University; New York; NY
| | - Bachir Alobeid
- Department of Pathology and Cell Biology; Columbia University; New York; NY
| | - Lee Ann Baxter-Lowe
- Department of Surgery; University of California San Francisco; San Francisco; CA
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44
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A Phase I Study of Gemtuzumab Ozogamicin (GO) in Combination with Busulfan and Cyclophosphamide (Bu/Cy) and Allogeneic Stem Cell Transplantation in Children with Poor-Risk CD33+ AML: A New Targeted Immunochemotherapy Myeloablative Conditioning (MAC) Regimen. Biol Blood Marrow Transplant 2012; 18:324-9. [DOI: 10.1016/j.bbmt.2011.11.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Accepted: 11/01/2011] [Indexed: 11/20/2022]
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45
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George D, El-Mallawany NK, Jin Z, Geyer M, Della-Latta P, Satwani P, Garvin JH, Bradley MB, Bhatia M, van de Ven C, Morris E, Schwartz J, Cairo MS. Adenovirus infection in paediatric allogeneic stem cell transplantation recipients is a major independent factor for significantly increasing the risk of treatment related mortality. Br J Haematol 2011; 156:99-108. [DOI: 10.1111/j.1365-2141.2010.08468.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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46
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Risk Factors Associated with Kidney Injury and the Impact of Kidney Injury on Overall Survival in Pediatric Recipients Following Allogeneic Stem Cell Transplant. Biol Blood Marrow Transplant 2011; 17:1472-80. [DOI: 10.1016/j.bbmt.2011.02.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Accepted: 02/13/2011] [Indexed: 11/19/2022]
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47
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Geyer MB, Jacobson JS, Freedman J, George D, Moore V, van de Ven C, Satwani P, Bhatia M, Garvin JH, Bradley MB, Harrison L, Morris E, Della-Latta P, Schwartz J, Baxter-Lowe LA, Cairo MS. A comparison of immune reconstitution and graft-versus-host disease following myeloablative conditioning versus reduced toxicity conditioning and umbilical cord blood transplantation in paediatric recipients. Br J Haematol 2011; 155:218-34. [PMID: 21848882 DOI: 10.1111/j.1365-2141.2011.08822.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Immune reconstitution appears to be delayed following myeloablative conditioning (MAC) and umbilical cord blood transplantation (UCBT) in paediatric recipients. Although reduced toxicity conditioning (RTC) versus MAC prior to allogeneic stem cell transplantation is associated with decreased transplant-related mortality, the effects of RTC versus MAC prior to UCBT on immune reconstitution and risk of graft-versus-host disease (GVHD) are unknown. In 88 consecutive paediatric recipients of UCBT, we assessed immune cell recovery and immunoglobulin reconstitution at days +100, 180 and 365 and analysed risk factors associated with acute and chronic GVHD. Immune cell subset recovery, immunoglobulin reconstitution, and the incidence of opportunistic infections did not differ significantly between MAC versus RTC groups. In a Cox model, MAC versus RTC recipients had significantly higher risk of grade II-IV acute GVHD [Hazard Ratio (HR) 6·1, P = 0·002] as did recipients of 4/6 vs. 5-6/6 HLA-matched UCBT (HR 3·1, P = 0·03), who also had significantly increased risk of chronic GVHD (HR 18·5, P = 0·04). In multivariate analyses, MAC versus RTC was furthermore associated with significantly increased transplant-related (Odds Ratio 26·8, P = 0·008) and overall mortality (HR = 4·1, P = 0·0001). The use of adoptive cellular immunotherapy to accelerate immune reconstitution and prevent and treat opportunistic infections and malignant relapse following UCBT warrants further investigation.
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Affiliation(s)
- Mark B Geyer
- Department of Pediatrics, NewYork-Presbyterian Morgan Stanley Children's Hospital, Columbia University, New York, NY, USA
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48
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A pilot study of reduced toxicity conditioning with BU, fludarabine and alemtuzumab before the allogeneic hematopoietic SCT in children and adolescents. Bone Marrow Transplant 2010; 46:790-9. [PMID: 20818441 DOI: 10.1038/bmt.2010.209] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We report the results of a pilot study of a BU-fludarabine-alemtuzumab (BFA)-reduced toxicity conditioning (RTC) followed by allogeneic hematopoietic SCT (AlloHSCT) in 12 children and adolescents (<21 years) with malignant and non-malignant diseases. Stem cell sources were: two unrelated cord blood, one unrelated BM, two related and seven unrelated PBSC. Positive CD34 selection was performed in five unrelated PBSC grafts. RCT was carried out with BFA, and GVHD prophylaxis was FK506 and mycophenolate mofetil. The median time for neutrophil and platelet engraftment was 16 and 31 days, respectively. The P of developing ≥ grade II, ≥ grade III aGVHD and cGVHD was 41.6, 25 and 9%, respectively. Only 1 out of 12 developed ≥ grade III toxicity. There was one primary and no secondary graft failure. Mixed donor chimerism on day 100 and 1 year was median 99 and 96%, respectively; ≥ 90% of recipients achieved ≥ 80% donor chimerism. The 3-year overall survival (OS) in all patients was 91.7 ± 8% (100% for malignant vs. 80% for non-malignant diseases, ns). In all, 11 (91%) patients remain alive at median 2.8 (0.3-6.8) years. RTC followed by AlloHSCT, based on BFA conditioning, is feasible and tolerable in children and adolescents, and results in prompt achievement of durable mixed donor chimerism and excellent OS.
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