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has not demonstrated efficacy in primary goal
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| Name | Class |
|---|---|
| Human Genome Sciences Inc. | INDUSTRY |
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If subjects are listed for kidney transplant and are considered sensitized, this means they have a high amount of antibodies in their blood that could react to a kidney transplant offered for them. Antibodies are protein substances made by the body that fight anything that the body considers as a threat to it, such as infection or a kidney transplant. Sensitization may be due to prior transplants, pregnancy, or blood transfusions. Being sensitized can increase the subject's kidney transplant waiting time as it is more difficult to find a suitable kidney transplant for them that their antibodies will not react to. The purpose of this research study is to see if giving the investigational drug belimumab up to one year pre-transplant can de-sensitize the subjects, or decrease the amount of antibodies in their blood. This may help make the subjects eligible to receive a kidney transplant more quickly. If after receiving belimumab, the subjects are compatible with a donor kidney offered and are medically suitable for transplant at that time, a kidney transplant will be performed.
Approximately one third of patients awaiting kidney transplant at our transplant center have significant levels of antibodies in their blood leading to a longer wait time for a kidney transplant and death. Antibodies in the blood may be due to prior transplants, pregnancy, or blood transfusions. These antibodies sensitize a patient and make it more difficult for the patient to get a compatible kidney transplant. The measure of these antibodies is called panel reactive antibodies (PRA) and can range from 0-100%, with 100% being most sensitized. The waiting time for patients with a PRA in the range of 20%-79% is over 5 years as compared to patients with low PRA (0%-19%) which is 3-4 years. Patients with a PRA greater than 80% are likely to be granted extra points to increase the chances of transplantation. Antibodies in these patients may be due to prior transplants, pregnancy, or blood transfusions. To date, no trials with belimumab have been performed in patients with pre-existing antibodies awaiting kidney transplantation. This study is undertaken to assess the effectiveness and safety of using belimumab to normalize antibody levels in sensitized patients awaiting kidney transplantation. It is hoped that decreasing these antibodies will decrease the waiting time on the kidney transplant list, and allow the patient to become compatible with a donor kidney for transplant.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Belimumab | Experimental | Belimumab will be administered intravenously at a dose of 10mg/kg on days 0, 14, 28 and every 28 days for up to 52 weeks to normalize alloantibody levels in sensitized patients awaiting kidney transplantation. Subjects who are not able to undergo transplantation before the end of the treatment period will have final follow-up evaluation 8 weeks after the last dose of belimumab is administered. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Belimumab | Drug | Belimumab is a fully human monoclonal antibody that recognizes and inhibits BLyS ®. BLyS ® is a B-lymphocyte stimulator protein which plays a role in the development of B lymphocyte cells into plasma B cells, which then produce antibodies that can sensitize a potential transplant recipient. At the time of this trial, belimumab was not yet FDA approved and was being studied in clinical trials for the treatment of systemic lupus erythematosus. Until this trial, it had not yet been used in the transplant setting. |
| Measure | Description | Time Frame |
|---|---|---|
| Effectiveness of Belimumab to Normalize Allo-antibody Levels in Sensitized Patients Awaiting Kidney Transplantation. | Before transplant it is necessary to measure antibodies that the recipient might have and compare them to the living or decease donor's immune make-up. Recipients with many antibodies or a specific antibody in a high concentration may have a more difficult time finding a compatible donor, and being transplanted. These recipients are referred to as sensitized patients. It is important that the sensitized recipient and the donor be compatible to prevent rejection after transplant. We measured antibodies levels in sensitized patients waiting for kidney transplant, to see if belimumab would decrease these antibody levels. | up to one year pre-transplant |
| Successful Kidney Transplantation From a Cross-match Compatible Donor (as a Result of Belimumab Therapy) | In order for a sensitized recipient ( a recipient with antibodies) to be transplanted, the cross match with the donor has to be compatible. We wanted to study if belimumab reduced antibodies in sensitized patients and led those patients to subsequently become cross-match compatible with a donor and allow for successful transplant. | one year pre-transplant |
| Measure | Description | Time Frame |
|---|---|---|
| Pharmacokinetics of Belimumab Measured as Number of Participants With Specific Dilution Factors at Each Time Point. | We wanted to look at belimumab pharmacokinetics in sensitized patients awaiting kidney transplant. These are reported as number of participants with specific dilution factors at each studied time-point. Blood for these tests could be drawn pre dose as well as 0-4 hours after the dose was given. Belimumab dilutions factors were measured pre dose at timepoints 0 (first day of belimumab), days 56 and 364. Belimumab dilution factors were measured after the dose on days 14, and 168. Belimumab dilution factors were also measured at 8 weeks after completion of belimumab therapy and pre dose at any unscheduled visits if needed. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Ali Naji, MD, Ph D | University of Pennsylvania | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of Pennsyvlania Kidney Transplant Program | Philadelphia | Pennsylvania | 19104 | United States |
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There were no wash out, run-in or transition periods for this trial.
From April 2010 to October 2011 patients listed for renal transplant at the Hospital of the University of Pennsylvania who met study inclusion criteria and none of the exclusion criteria were approached during an outpatient clinic visit to participate in the study.
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| ID | Title | Description |
|---|---|---|
| FG000 | Belimumab | Belimumab is a monoclonal antibody. It is the first drug of its type in a new class of medications called BLyS-specific inhibitors. In March 2011, it was approved by the Food and Drug Administration (FDA) for the treatment of adult patients with active, autoantibody-positive, systemic lupus erythematosus (SLE) who are receiving standard therapy. In this study, belimumab was being used to try to decrease the amount of antibodies in the subject's blood pre-kidney transplant. This use was considered investigational (not approved by the Food and Drug Administration). Belimumab : The subjects were given this medication as an outpatient as an intravenous infusion through the arm. The medication was given at the beginning of the study, two weeks later, and then every 4 weeks for up to one year pre-transplant. |
| Title | Milestones | Reasons Not Completed | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall Study |
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| ID | Title | Description |
|---|---|---|
| BG000 | Belimumab | Belimumab is a monoclonal antibody. It is the first drug of its type in a new class of medications called BLyS-specific inhibitors. In March 2011, it was approved by the Food and Drug Administration (FDA) for the treatment of adult patients with active, autoantibody-positive, systemic lupus erythematosus (SLE) who are receiving standard therapy. In this study, belimumab was used in to try to decrease the amount of antibodies in the pre-kidney transplant patient's blood. This use was considered investigational (not approved by the Food and Drug Administration). Belimumab : The subjects were given this medication as an outpatient as an intravenous infusion through the arm. The medication was given at the beginning of the study, two weeks later, and then every 4 weeks for up to one year pre-transplant. |
| Units | Counts |
|---|---|
| Participants |
|
| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes |
|---|---|---|---|---|---|---|---|---|---|
| Age, Categorical | Count of Participants |
| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Effectiveness of Belimumab to Normalize Allo-antibody Levels in Sensitized Patients Awaiting Kidney Transplantation. | Before transplant it is necessary to measure antibodies that the recipient might have and compare them to the living or decease donor's immune make-up. Recipients with many antibodies or a specific antibody in a high concentration may have a more difficult time finding a compatible donor, and being transplanted. These recipients are referred to as sensitized patients. It is important that the sensitized recipient and the donor be compatible to prevent rejection after transplant. We measured antibodies levels in sensitized patients waiting for kidney transplant, to see if belimumab would decrease these antibody levels. | any patient who received at least one dose of belimumab was included in analysis population | Posted | Count of Participants | Participants | up to one year pre-transplant |
|
adverse events were collected for up to 12 months during which patients received belimumab therapy and for 8 weeks after the last dose of belimumab therapy.
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| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | Belimumab | Belimumab is a monoclonal antibody. It is the first drug of its type in a new class of medications called BLyS-specific inhibitors. In March 2011, it was approved by the Food and Drug Administration (FDA) for the treatment of adult patients with active, autoantibody-positive, systemic lupus erythematosus (SLE) who are receiving standard therapy. In this study, belimumab was used to try to decrease the amount of antibodies in the patient waiting for kidney transplant's blood. This use was considered investigational (not approved by the Food and Drug Administration). Belimumab : The subjects were given this medication as an outpatient as an intravenous infusion through the arm. The medication was given at the beginning of the study, two weeks later, and then every 4 weeks for up to one year pre-transplant. |
| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Atrial Fibrillation | Cardiac disorders | Systematic Assessment | unrelated to study drug |
| Term | Organ System | Source Vocabulary | Assessment Type | Notes | Statistical Information |
|---|---|---|---|---|---|
| Rash left antecubitus from adhesive tape | Skin and subcutaneous tissue disorders | Systematic Assessment | unrelated to study drug |
Few patients enrolled, and limited follow-up due to trial being halted due to lack of efficacy after review by investigators and the data safety monitoring board. Only one patient was transplanted during the trial (unrelated to study treatment).
| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Jennifer Trofe-Clark | Hospital of the University of Pennsylvania | 215-614-4274 | jennifer.trofe-clark@uphs.upenn.edu |
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| ID | Term |
|---|---|
| C511911 | belimumab |
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There was only one group in this trial. All participants received belimumab.
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There was no masking in this single group trial. The patients, providers and investigators were all aware that the patient were on belimumab therapy.
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| Belimumab serum drug dilution factors were measured in patients at at timepoints 0 (first day of belimumab), day 14, day 56, day 168, 364, at any unscheduled visits, and at 8 weeks post completion of belimumab therapy. |
| B and T Lymphocyte Subsets | B and T Lymphocyte subsets were measured through flow cytometry pre-treatment and at months 1,2,12 and at 8 weeks after the last belimumab dose. We looked for clinically significant changes (as determined by Principal Investigator) in these subsets at each time-point. | 8 weeks after the last dose of belimumab |
| BLyS Levels Before and After Treatment With Belimumab | We assessed for unexpected changes in bound and unbound BLyS levels before and after treatment with belimumab. These were measured from before treatment and at months 1,2,6,10 and 12 months after belimumab treatment and again at 8 weeks after belimumab treatment. | up to 8 weeks after completion of therapy |
| Hepatitis B Vaccine Antibody Titers | We investigated if belimumab treatment would decrease Hepatitis B vaccine titers by 12 months after treatment with belimumab. All patients received Hepatitis B vaccine before beginning treatment with belimumab. | up to 12 months of treatment with belimumab |
| Number of Participants With Treatment Related Serious Adverse Events | To assess the safety of belimumab in sensitized patients awaiting kidney transplant we evaluated the number of participants with serious adverse events possibly or definitely related to belimumab. | up to one year pre-transplant |
| Participants |
|
| Age, Continuous | Mean | Standard Deviation | years |
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| Sex: Female, Male | Count of Participants | Participants |
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| Region of Enrollment | Number | participants |
|
Belimumab will be administered intravenously at a dose of 10mg/kg on days 0, 14, 28 and every 28 days for up to 52 weeks to normalize alloantibody levels in sensitized patients awaiting kidney transplantation. Subjects who are not able to undergo transplantation before the end of the treatment period will have final follow-up evaluation 8 weeks after the last dose of belimumab is administered.
Belimumab: Belimumab is a fully human monoclonal antibody that recognizes and inhibits BLyS ®. BLyS ® is a B-lymphocyte stimulator protein which plays a role in the development of B lymphocyte cells into plasma B cells, which then produce antibodies that can sensitize a potential transplant recipient. At the time of this trial, belimumab was not yet FDA approved and was being studied in clinical trials for the treatment of systemic lupus erythematosus. Until this trial, it had not yet been used in the transplant setting.
|
|
| Primary | Successful Kidney Transplantation From a Cross-match Compatible Donor (as a Result of Belimumab Therapy) | In order for a sensitized recipient ( a recipient with antibodies) to be transplanted, the cross match with the donor has to be compatible. We wanted to study if belimumab reduced antibodies in sensitized patients and led those patients to subsequently become cross-match compatible with a donor and allow for successful transplant. | All participants enrolled who received at least one dose of belimumab were considered for analysis. | Posted | Count of Participants | Participants | one year pre-transplant |
|
|
|
| Secondary | Pharmacokinetics of Belimumab Measured as Number of Participants With Specific Dilution Factors at Each Time Point. | We wanted to look at belimumab pharmacokinetics in sensitized patients awaiting kidney transplant. These are reported as number of participants with specific dilution factors at each studied time-point. Blood for these tests could be drawn pre dose as well as 0-4 hours after the dose was given. Belimumab dilutions factors were measured pre dose at timepoints 0 (first day of belimumab), days 56 and 364. Belimumab dilution factors were measured after the dose on days 14, and 168. Belimumab dilution factors were also measured at 8 weeks after completion of belimumab therapy and pre dose at any unscheduled visits if needed. | any patient who received at least one dose of belimumab was included in the analysis | Posted | Count of Participants | Participants | Belimumab serum drug dilution factors were measured in patients at at timepoints 0 (first day of belimumab), day 14, day 56, day 168, 364, at any unscheduled visits, and at 8 weeks post completion of belimumab therapy. |
|
|
|
| Secondary | B and T Lymphocyte Subsets | B and T Lymphocyte subsets were measured through flow cytometry pre-treatment and at months 1,2,12 and at 8 weeks after the last belimumab dose. We looked for clinically significant changes (as determined by Principal Investigator) in these subsets at each time-point. | Any patient who received at least one dose of belimumab was included in the analysis | Posted | Count of Participants | Participants | 8 weeks after the last dose of belimumab |
|
|
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| Secondary | BLyS Levels Before and After Treatment With Belimumab | We assessed for unexpected changes in bound and unbound BLyS levels before and after treatment with belimumab. These were measured from before treatment and at months 1,2,6,10 and 12 months after belimumab treatment and again at 8 weeks after belimumab treatment. | Any patient who received at least one dose of belimumab was included in the analysis | Posted | Count of Participants | Participants | up to 8 weeks after completion of therapy |
|
|
|
| Secondary | Hepatitis B Vaccine Antibody Titers | We investigated if belimumab treatment would decrease Hepatitis B vaccine titers by 12 months after treatment with belimumab. All patients received Hepatitis B vaccine before beginning treatment with belimumab. | All patients who received at least one dose of belimumab were included in the analysis | Posted | Count of Participants | Participants | up to 12 months of treatment with belimumab |
|
|
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| Secondary | Number of Participants With Treatment Related Serious Adverse Events | To assess the safety of belimumab in sensitized patients awaiting kidney transplant we evaluated the number of participants with serious adverse events possibly or definitely related to belimumab. | Any patient who received at least one dose of belimumab was included in the analysis | Posted | Count of Participants | Participants | up to one year pre-transplant |
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| 3 |
| 8 |
| 6 |
| 8 |
| Atrial Ablation | Cardiac disorders | Systematic Assessment | unrelated to study drug |
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| Anemia | Blood and lymphatic system disorders | Systematic Assessment | unrelated to study drug, occurred post-transplant in 8 week belimumab follow-up phase |
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| fluid overload | Renal and urinary disorders | Systematic Assessment | unrelated to study drug in both cases, occurred post-transplant in 8 week post belimumab follow-up phase in 1 patient |
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| hives | Immune system disorders | Systematic Assessment | related to study drug at first dose |
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| Infusion reaction | Injury, poisoning and procedural complications | Systematic Assessment | allergic reaction to first dose of study drug |
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| Hypertensive episode | Renal and urinary disorders | Systematic Assessment | unrelated to study drug |
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| Electrolyte imbalance | Renal and urinary disorders | Systematic Assessment | unrelated to study drug |
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| Nausea | Gastrointestinal disorders | Systematic Assessment | related to menstrual cycle per patient, unrelated to study drug |
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| non-cardiac related chest pain | General disorders | Systematic Assessment | non cardiac related, resolved on own, unrelated to study drug |
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| Shakiness | General disorders | Systematic Assessment | patient seen in ER, but no cause identified and resolved, unrelated to study drug |
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| anemia (low red blood cell count) | Blood and lymphatic system disorders | Systematic Assessment | unrelated to study drug, continued from SAE, post renal transplant |
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| fluid overload | Renal and urinary disorders | Systematic Assessment | not related to study drug |
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| infection cold symptoms | Infections and infestations | Systematic Assessment | unrelated to study drug |
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| partial parathyroidectomy | Endocrine disorders | Systematic Assessment |
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| Title | Measurements |
|---|---|
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| Pre Dose Belimumab Dilution 8000 at Day 364 |
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| Post Dose Belimumab Dilution at 8000 at Day 14 |
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| Post Dose Belimumab Dilution at 8000 at Day 168 |
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| Belimumab Dilution 8000 at 8 weeks After Belimumab |
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| Decrease in T and B Cell Flow Cytometry:month 12 |
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| Decrease in T and B Cell Flow Cytometry:post 8 wks |
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| Unexpected change in BLyS levels at 6 mo |
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| Unexpected change in BLyS levels at 12 months |
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| Unexpected change in BLyS levels 8 wks post treat |
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