- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01729494
Belatacept Early Steroid Withdrawal Trial
Randomized, Open Label, Multicenter Study of Belatacept-based Early Steroid Withdrawal Regimen With Alemtuzumab or rATG Induction Compared to Tacrolimus-based Early Steroid Withdrawal Regimen With rATG Induction in Renal Transplantation
The study purpose is to determine the safety and efficacy of a belatacept-based immunosuppressive regimen (calcineurin inhibitor free) with alemtuzumab or rabbit antithymocyte globulin (rATG) induction and early glucocorticoid withdrawal (CSWD) and a belatacept-based immunosuppressive regimen with tacrolimus-based regimen with rabbit antithymocyte globulin induction and early glucocorticoid withdrawal in renal transplant recipients.
The hypothesis is that a belatacept-based immunosuppressive regimen with alemtuzumab induction, mycophenolate mofetil (MMF)/mycophenolic acid (MPA), and early glucocorticoid withdrawal (Group A) in renal transplant recipients or Belatacept-based immunosuppressive regimen with rabbit antithymocyte globulin induction, MMF/MPA and early glucocorticoid withdrawal (Group B) will lead to less risk of graft loss, patient death, or reduced renal function at 12 months as compared to a tacrolimus-based immunosuppressive regimen with rabbit antithymocyte globulin, MMF/MPA, and early glucocorticoid withdrawal in renal transplant recipients (Group C).
Study Overview
Status
Conditions
Detailed Description
Renal transplant is the most effective treatment for end-stage renal disease. It provides improved survival and quality of life. Maintenance of a functioning renal transplant mandates lifelong immunosuppressive therapy to prevent immune destruction of the graft. Current immunosuppressive regimens yield 1-year survival rates of 89% for cadaveric and 94% for living-donor grafts. Over time, however, there is progressive loss of both subjects and grafts. Five-year graft survival for cadaveric and living related donor renal transplants is 67% and 80%, respectively.
The most common causes of long-term subject and graft loss in kidney transplant recipients are cardiovascular disease and chronic allograft nephropathy (CAN), respectively. Paradoxically, the principal immunosuppressive therapies for renal transplant, the calcineurin inhibitors (CNIs), cyclosporine (CsA) and tacrolimus, directly contribute to long-term allograft loss and subject death, since they are inherently nephrotoxic and can cause or exacerbate cardiovascular risks including hypertension, hypercholesterolemia, and diabetes mellitus.
There is, therefore, a substantial unmet medical need for new therapies in renal transplant that can provide short-term subject and graft survival comparable to the CNIs without their long-term nephrotoxic, cardiovascular, and metabolic effects. Because belatacept can be administered at the time of engraftment rather than in a delayed fashion, as is frequently necessary with CNIs - especially in those allografts with initial impaired renal function-- it affords immunosuppression in a timely manner. Unlike CNIs, the targeted mechanism of action of belatacept should provide immunosuppression without nephrotoxicity or adverse effects on the cardiovascular/metabolic profile.
Glucocorticoids have been a cornerstone of immunosuppressive therapy for six decades. Although glucocorticoids provide potent suppression of allo-immune responses in humans, their adverse effects including infection, diabetes, weight gain, hypertension, hyperlipidemia, bone disease, dermal thinning, collagen loss in multiple tissues, and cataracts, combined with a lack of available therapeutic monitoring all argue against their continued use in transplantation.
Belatacept represents a potential new treatment option for renal transplant recipients, which addresses the current unmet need for an immunosuppressive treatment that provides short-term outcomes comparable to calcineurin inhibitors (CNIs) with the potential to avoid their renal, cardiovascular, and metabolic toxicities. However, the initial Phase 3 studies exhibited in higher rate of acute rejection and malignancy. The malignancies were associated with recipients who were EBV negative at the time of transplant. All EBV negative patients are precluded from treatment with Belatacept. Due to the limitations of Phase 3 trial designs and the required use of basilixumab induction, it is intuitive that the addition of a potent t cell depleting induction agent may decrease the overall acute rejection rate in patients treated with belatacept.
The current study tests these assumptions with the following immunosuppressive regimens. Group A and B consist of potent T-cell depleting induction agents combined with belatacept. Group C represents the most common immunosuppressive regimen currently utilized in the United States. Each of these regimens include early withdrawal of glucocorticoids along with maintenance mycophenolate mofetil.
Based upon the totality of available evidence, the current study offers a favorable benefit/risk profile to study subjects, and the potential to continue to provide important data for the development of new immunosuppressive regimens that address important unmet needs.
The proposed Phase 4 study is designed to determine whether belatacept, in combination with other immunosuppressive agents (rabbit antithymocyte globulin or alemtuzumab, mycophenolate mofetil/EC mycophenolate sodium), may provide acceptable efficacy and safety in de novo kidney transplant recipients, in a regimen that provides simultaneous CNI freedom and early CSWD.
Study Type
Enrollment (Actual)
Phase
- Phase 4
Contacts and Locations
Study Locations
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California
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San Francisco, California, United States, 94107
- California Pacific Medical Center
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Colorado
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Denver, Colorado, United States, 80045
- University of Colorado Denver
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Florida
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Tampa, Florida, United States, 33606
- Tampa General Hospital
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Illinois
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Chicago, Illinois, United States, 60612
- University of Illinois Medical Center At Chicago
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Minnesota
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Minneapolis, Minnesota, United States, 55455
- University of Minnesota
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Ohio
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Cincinnati, Ohio, United States, 45219
- The Christ Hospital
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Cincinnati, Ohio, United States, 45219
- University of Cincinnati
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Wisconsin
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Madison, Wisconsin, United States, 53792
- University of Wisconsin-Madison
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Male and female patients > 18 years of age.
- Patient who is receiving a renal transplant from a living or deceased donor.
- Female patients of child bearing potential must have a negative urine or serum pregnancy test within the past 48 hours prior to study inclusion.
- The patient has given written informed consent to participate in the study.
Exclusion Criteria:
- Patient has previously received an organ transplant other than a kidney.
- Patient is receiving an human leucocyte antigen (HLA) identical living donor transplant.
- Patient who is a recipient of a multiple organ transplant.
- Patient has a most recent cytotoxic panel reactive antibody (PRA) of >25% or calculated PRA of > 50% where multiple moderate level HLA antibodies exist and in the opinion of the PI represents substantial HLA sensitization.
- Patient with a positive T or B cell crossmatch that is primarily due to HLA antibodies.
- Patient with a donor specific antibody (DSA) as deemed by the local PI to be associated with significant risk of rejection.
- Patient has received a blood group (ABO) incompatible donor kidney.
The donor and/or donor kidney meet any of the following extended criteria for organ donation (ECD):
- Donor age >/= 60 years OR
Donor age 50-59 years and 1 of the following:
- Cerebrovascular accident (CVA) + hypertension + serum creatinine (SCr) > 1.5 mg/dL OR
- CVA + hypertension OR
- CVA + SCr > 1.5 mg/dL OR
- Hypertension + SCr > 1.5 mg/dL OR
- Cold ischemia time (CIT) > 24 hours, donor age > 10 years OR
- Donation after cardiac death (DCD)
- Recipients will be receiving a dual or en bloc kidney transplant.
- Donor anticipated cold ischemia is > 30 hours.
- Recipient that is seropositive for hepatitis C virus (HCV) with detectable Hepatitis C viral load are excluded. HCV seropositive patients with a negative HCV viral load testing may be included.
- Recipients who are Hepatitis B core antibody seropositive are eligible if their hepatitis B viral loads are negative. After transplant, their hepatitis B viral loads will be monitored every three months for the first year after transplant. If hepatitis B viral loads become positive, patients will be treated per institutional standard of care.
- Patients who are Hepatitis B surface antibody seropositive and who receive a kidney from a Hepatitis B core surface antibody positive donor may be included.
- Recipient or donor is known to be seropositive for human immunodeficiency virus (HIV).
- Recipient who is seronegative for Epstein Barr virus (EBV).
- Patient has uncontrolled concomitant infection or any other unstable medical condition that could interfere with the study objectives.
- Patients with thrombocytopenia (PLT < 75,000/mm3), and/or leucopoenia (WBC < 2,000/mm3), or anemia (hemoglobin < 6 g/dL) prior to study inclusion.
- Patient is taking or has been taking an investigational drug in the 30 days prior to transplant.
- Patient who has undergone desensitization therapy within 6 months prior to transplant.
- Patient has a known hypersensitivity to belatacept, tacrolimus, mycophenolate mofetil, alemtuzumab, rabbit anti-thymocyte globulin, or glucocorticoids.
- Patient is receiving chronic steroid therapy at the time of transplant.
- Patients with a history of cancer (other than non-melanoma skin cell cancers cured by local resection) within the last 5 years, unless they have an expected disease free survival of > 95%.
- Patient is pregnant, where pregnancy is defined as the state of a female after conception and until the termination of gestation, confirmed by positive human Chorionic Gonadotropin (hCG) laboratory test.
- Women of childbearing potential must use reliable contraception simultaneously, unless they are status post bilateral tubal ligation, bilateral oophorectomy, or hysterectomy.
- Patient has any form of substance abuse, psychiatric disorder or a condition that, in the opinion of the investigator, may invalidate communication with the investigator.
- Inability to cooperate or communicate with the investigator.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: NONE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: Group A
Alemtuzumab + belatacept + mycophenolate mofetil /Enteric coated mycophenolate sodium + early cessation of steroids
|
Alemtuzumab will be dosed on day of transplant (Study Day 1) at dose of 30 mg given intravenously (IV) over a period of 2 hours after induction of anesthesia.
Methylprednisolone IV will be administered 30-60 minutes prior to the administration of alemtuzumab.
Other Names:
Belatacept will be administered via intravenous (IV) infusion according to the FDA approved dosage recommendations.
Subjects randomized to belatacept arms will receive the first dose of IV belatacept (10 mg/kg) within 12-24 hours post reperfusion.
The second dose will be given between post-transplant days 4 -6 (Study Days 5-7), and then study days 14, 28, 56, and 84 (12 weeks) and then subjects will receive belatacept at the maintenance dose of 5 mg/kg every 4 weeks until completion of the trial at 24 months (104 weeks).
Study Day 1 is defined as the day of transplant.
Other Names:
The first dose of mycophenolate mofetil/EC mycophenolate sodium will be administered pre-operatively.
Patients receiving mycophenolate mofetil will be dosed 1000 mg twice daily (2000mg/day).
Patients receiving EC mycophenolate sodium will be dosed 720 mg twice daily (1440 mg/day).
Dose may be increased for African American transplant recipients to mycophenolate mofetil 1500 mg twice daily (3000mg/day) or EC mycophenolate sodium 1080 mg twice daily (2160 mg/day).
Other Names:
Glucocorticoid therapy will be administered as described. Methylprednisolone will be administered on Days 1 through 3. Additional tapering doses of glucocorticoids will continue to be given until Day 5 as below: Day 1 (day of transplant): 500mg IV prior to alemtuzumab (Group A) or rabbit antithymocyte globulin (Groups B and C) Day 2: 250mg IV Day 3: 125mg IV Day 4: 80mg p.o. Day 5: 60mg p.o. No further steroids
Other Names:
|
EXPERIMENTAL: Group B
Rabbit antithymocyte globulin + belatacept + mycophenolate mofetil /Enteric coated (EC) mycophenolate sodium + early cessation of steroids
|
Belatacept will be administered via intravenous (IV) infusion according to the FDA approved dosage recommendations.
Subjects randomized to belatacept arms will receive the first dose of IV belatacept (10 mg/kg) within 12-24 hours post reperfusion.
The second dose will be given between post-transplant days 4 -6 (Study Days 5-7), and then study days 14, 28, 56, and 84 (12 weeks) and then subjects will receive belatacept at the maintenance dose of 5 mg/kg every 4 weeks until completion of the trial at 24 months (104 weeks).
Study Day 1 is defined as the day of transplant.
Other Names:
The first dose of mycophenolate mofetil/EC mycophenolate sodium will be administered pre-operatively.
Patients receiving mycophenolate mofetil will be dosed 1000 mg twice daily (2000mg/day).
Patients receiving EC mycophenolate sodium will be dosed 720 mg twice daily (1440 mg/day).
Dose may be increased for African American transplant recipients to mycophenolate mofetil 1500 mg twice daily (3000mg/day) or EC mycophenolate sodium 1080 mg twice daily (2160 mg/day).
Other Names:
Glucocorticoid therapy will be administered as described. Methylprednisolone will be administered on Days 1 through 3. Additional tapering doses of glucocorticoids will continue to be given until Day 5 as below: Day 1 (day of transplant): 500mg IV prior to alemtuzumab (Group A) or rabbit antithymocyte globulin (Groups B and C) Day 2: 250mg IV Day 3: 125mg IV Day 4: 80mg p.o. Day 5: 60mg p.o. No further steroids
Other Names:
Rabbit antithymocyte globulin will be dosed post-operatively at a total cumulative dose of 4.0-6.0mg/kg
given by days 5-10 post-transplant.
It will be administered by local standards of care with the following recommendations.
The initial intravenous intra-operative dose will be administered approximately one hour after the methylprednisolone dose.
The first dose will be administered so that approximately 25% of the dose is infused prior to revascularization of the graft.
Subsequent doses will be administered over a minimum of 4 hours.
Premedication with acetaminophen 650mg p.o. and diphenhydramine 25mg p.o. prior to rabbit antithymocyte globulin dose will be given to reduce the incidence of infusion reactions.
Other Names:
|
ACTIVE_COMPARATOR: Group C
Rabbit antithymocyte globulin + tacrolimus + mycophenolate mofetil /Enteric coated (EC) mycophenolate sodium + early cessation of steroids
|
The first dose of mycophenolate mofetil/EC mycophenolate sodium will be administered pre-operatively.
Patients receiving mycophenolate mofetil will be dosed 1000 mg twice daily (2000mg/day).
Patients receiving EC mycophenolate sodium will be dosed 720 mg twice daily (1440 mg/day).
Dose may be increased for African American transplant recipients to mycophenolate mofetil 1500 mg twice daily (3000mg/day) or EC mycophenolate sodium 1080 mg twice daily (2160 mg/day).
Other Names:
Glucocorticoid therapy will be administered as described. Methylprednisolone will be administered on Days 1 through 3. Additional tapering doses of glucocorticoids will continue to be given until Day 5 as below: Day 1 (day of transplant): 500mg IV prior to alemtuzumab (Group A) or rabbit antithymocyte globulin (Groups B and C) Day 2: 250mg IV Day 3: 125mg IV Day 4: 80mg p.o. Day 5: 60mg p.o. No further steroids
Other Names:
Rabbit antithymocyte globulin will be dosed post-operatively at a total cumulative dose of 4.0-6.0mg/kg
given by days 5-10 post-transplant.
It will be administered by local standards of care with the following recommendations.
The initial intravenous intra-operative dose will be administered approximately one hour after the methylprednisolone dose.
The first dose will be administered so that approximately 25% of the dose is infused prior to revascularization of the graft.
Subsequent doses will be administered over a minimum of 4 hours.
Premedication with acetaminophen 650mg p.o. and diphenhydramine 25mg p.o. prior to rabbit antithymocyte globulin dose will be given to reduce the incidence of infusion reactions.
Other Names:
Tacrolimus will be administered orally twice daily (BID).
The recommended total initial dose of tacrolimus is 0.1 mg/kg/day in two divided doses orally.
Tacrolimus should be started post-transplant within 48 hours or when serum creatinine drops lower than 4mg/dL, whichever comes first.
The initial targeted trough level of tacrolimus will be 8 - 12 ng/mL for Days 1 through 30, with dose reduction to achieve a 12-hour trough target of 5 - 10 ng/mL thereafter.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
# Patients With Composite Endpoint of Experiencing Either Death, Graft Loss, or eGFR < 45ml/Min
Time Frame: 12 months
|
Number of Patients that experienced patient Death or Graft Loss or had an estimated GFR (eGFR) (MDRD) < 45 mL/min
|
12 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
# Patients Experiencing a Graft Loss But Not Including Patients Who Died With Functioning Graft (Death-censored Graft Loss)
Time Frame: 24 months
|
Number of patient who experienced Graft loss, not including (censored) patients who lost graft due to death
|
24 months
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# Patients With Composite Endpoint of Either Experiencing Death, Graft Loss, or eGFR < 45ml/Min at 24 Months
Time Frame: 24 months
|
Composite Endpoint of number of patients who experienced either patient death, allograft loss, or had an eGFR < 45 ml/min/1.73m2
|
24 months
|
eGFR (MRDRD) < 45 ml/Min/1.73m2
Time Frame: 24 months
|
Patients with reduced Renal function measured by estimated GFR MDRD < 45 ml/min at 24 months
|
24 months
|
Biopsy Proven Acute Rejection
Time Frame: 24 months
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Incidence of all biopsy proven acute rejection whether clinically relevant or clinically silent.
|
24 months
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Biopsy Proven Acute Cellular Rejection
Time Frame: 24 months
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Biopsy proven acute cellular rejection (BPACR)
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24 months
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Biopsy Proven Acute Antibody Mediated Rejection
Time Frame: 24 months
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Incidence of patients experiencing a Biopsy proven acute antibody mediated rejection (BPAMR)
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24 months
|
Biopsy Proven Mixed Acute Rejection
Time Frame: 24 months
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Incidence of patients experiencing a Biopsy proven acute cellular rejection with either DSA positive or C4d staining positive indicating antibody rejection
|
24 months
|
# of Patients Developing Denovo Donor Specific Antibody (DSA) Post-transplant
Time Frame: 24 months
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Number of patients (%) with development of denovo DSA after transplant
|
24 months
|
Mean eGFR (MDRD) (ml/Min/1.73m2)
Time Frame: 24 months
|
Mean eGFR (MDRD) (ml/min/1.73m2)
measured for all patients reaching 2 year endpoint
|
24 months
|
Proteinuria UPC Ratio > 0.8
Time Frame: 24 months
|
Number of Patients with a Urine protein/creatinine (UPC) ratio > 0.8
|
24 months
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Patient Death
Time Frame: 24 months
|
Number of Patients who experienced death, all causes
|
24 months
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Requirement of T-cell Depleting Therapy for Biopsy Proven Acute Rejection (BPAR)
Time Frame: 24 months
|
Number of patients requiring anti-lymphocyte therapy for the treatment of BPAR rejection
|
24 months
|
New Onset Diabetes After Transplantation (NODAT)
Time Frame: 24 months
|
Number of patients developing New Onset Diabetes Mellitus after Transplant by one of 5 definitions; only patients without preexisting diabetes were included
|
24 months
|
Time to First BPAR
Time Frame: 24 months
|
Mean Time to first episode of BPAR (days)
|
24 months
|
# Patients Experiencing a First Biopsy-proven ACR With Severity Banff > or = 2a Grade
Time Frame: 24 months
|
Number of patients with their First BPACR with a Banff grade >= Banff 2a using the Banff 2007 classification system for biopsy grading.
Banff grade 2a and above is considered severe cellular rejection and includes grades of Banff 2a, Banff 2b, and Banff 3.
|
24 months
|
Delayed Graft Function
Time Frame: 24 months
|
Number of patients experiencing Delayed graft function (DGF) within first week after transplant.
DGF is defined as need for dialysis within the first week after transplant.
|
24 months
|
Leukopenia (WBC < 2000/mm3)
Time Frame: 24 months
|
Number of patients developing leukopenia defined as WBC < 2000/mm3
|
24 months
|
Steroid Therapy
Time Frame: 24 months
|
Number of patients on treatment with corticosteroids at 2 years
|
24 months
|
Discontinuation of Mycophenolate
Time Frame: 24 months
|
Number of patients who were discontinued from mycophenolate treatment at 2 years
|
24 months
|
Discontinuation of Study Treatment (Belatacept or Tacrolimus)
Time Frame: 24 months
|
Number of patients who had to Discontinue study treatment (belatacept or tacrolimus) at 2 years
|
24 months
|
Collaborators and Investigators
Sponsor
Publications and helpful links
General Publications
- Kaufman DB, Woodle ES, Shields AR, Leone J, Matas A, Wiseman A, West-Thielke P, Sa T, King EC, Alloway RR; BEST Study Group. Belatacept for Simultaneous Calcineurin Inhibitor and Chronic Corticosteroid Immunosuppression Avoidance: Two-Year Results of a Prospective, Randomized Multicenter Trial. Clin J Am Soc Nephrol. 2021 Sep;16(9):1387-1397. doi: 10.2215/CJN.13100820. Epub 2021 Jul 7.
- Castro-Rojas CM, Godarova A, Shi T, Hummel SA, Shields A, Tremblay S, Alloway RR, Jordan MB, Woodle ES, Hildeman DA. mTOR Inhibitor Therapy Diminishes Circulating CD8+ CD28- Effector Memory T Cells and Improves Allograft Inflammation in Belatacept-refractory Renal Allograft Rejection. Transplantation. 2020 May;104(5):1058-1069. doi: 10.1097/TP.0000000000002917.
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
Study Record Updates
Last Update Posted (ACTUAL)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Anti-Infective Agents
- Enzyme Inhibitors
- Anti-Inflammatory Agents
- Antirheumatic Agents
- Antineoplastic Agents
- Immunosuppressive Agents
- Immunologic Factors
- Glucocorticoids
- Hormones
- Hormones, Hormone Substitutes, and Hormone Antagonists
- Antineoplastic Agents, Hormonal
- Antineoplastic Agents, Immunological
- Anti-Bacterial Agents
- Antibiotics, Antineoplastic
- Immune Checkpoint Inhibitors
- Antitubercular Agents
- Antibiotics, Antitubercular
- Calcineurin Inhibitors
- Prednisone
- Tacrolimus
- Mycophenolic Acid
- Abatacept
- Thymoglobulin
- Antilymphocyte Serum
- Alemtuzumab
Other Study ID Numbers
- BEST
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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