| Primary | Number of Participants Successfully Withdrawn Off of Immunosuppressant Medication for 104 Weeks | A participant was considered a success if they were off immunosuppressive therapy for 104 consecutive weeks leading up to study week 208 (48 months post-transplant) or study termination, whichever occurred first. | | Posted | | Number | | participants | | 48 months post-transplant | | | | ID | Title | Description |
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| OG000 | MEDI-507 | Recipients received a conditioning treatment that started with rituximab (375 mg/m^2 infusion) on days -7, -2, 5 and 12. Cyclophosphamide (60 mg/kg) on days -5 and -4, followed by hemodialysis. MEDI-507, a T-cell-depleting agent, was given at 0.1 mg/kg on day -2 and 0.6 mg/kg on days -1, 0 and 1. Thymic irradiation (700 cGy) was given on day -1. Recipients underwent surgical transplantation of a donor kidney on day 0. During kidney transplant, bone marrow cells donated by the same donor as the kidney were given through a plastic tube placed in a vein in the chest, underneath the collarbone. Prednisone was started at 2 mg/kg/day on day 4 and tapered off by day 20. A steroid pulse (methylprednisolone 500 mg) was given on days 10, 11, and 12. Tacrolimus (0.05 mg/kg twice a day, adjusted to trough level of 10-15 ng/mL) was given starting on day -1. When the subject met weaning criteria, tacrolimus was tapered over a period of no less than 8 weeks beginning 60 days post-transplant. |
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| | Group IDs | Group Description | Statistical Method | Statistical Comment | P-Value | P-Value Comment | Parameter Type | Parameter Value | Dispersion Type | Dispersion Value | Confidence Interval Sides | Confidence Interval % | CI Lower Limit | CI Upper Limit | CI Lower Limit Comment | CI Upper Limit Comment | Estimate Comment | Tested Non-Inferiority | Non-Inferiority Type | Non-Inferiority Comment | Other Analysis Description |
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| | | | | | Percentage of Participants | 60.0 | | | 2-Sided | 95 | 14.7 | 94.7 | | | Clopper-Pearson used to derive confidence interval | No | Superiority or Other | | |
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| Secondary | Percentage of Participants Experiencing Acute Rejection | The percentage of participants who experience an acute rejection. Acute rejection is defined as a biopsy with findings of Banff score of grade IA or higher. The Banff classification is as follows: grade IA is >25% of parenchyma affected and foci of moderate tubulitis; Grade IB is >25% of parenchyma affected and foci of severe tubulitis; Grade IIA is mild to moderate intimal arteritis; Grade IIB is severe intimal arteritis comprising >25% of the luminal area; Grade III is "transmural" arteritis and/or arterial fibrinoid change and necrosis of medial smooth muscle cells with accompanying lymphocytic inflammation. | | Posted | | Number | 95% Confidence Interval | Percentage of Participants | | Transplantation until study completion or participant termination (up to five years) | | | | ID | Title | Description |
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| OG000 | MEDI-507 | Recipients received a conditioning treatment that started with rituximab (375 mg/m^2 infusion) on days -7, -2, 5 and 12. Cyclophosphamide (60 mg/kg) on days -5 and -4, followed by hemodialysis. MEDI-507, a T-cell-depleting agent, was given at 0.1 mg/kg on day -2 and 0.6 mg/kg on days -1, 0 and 1. Thymic irradiation (700 cGy) was given on day -1. Recipients underwent surgical transplantation of a donor kidney on day 0. During kidney transplant, bone marrow cells donated by the same donor as the kidney were given through a plastic tube placed in a vein in the chest, underneath the collarbone. Prednisone was started at 2 mg/kg/day on day 4 and tapered off by day 20. A steroid pulse (methylprednisolone 500 mg) was given on days 10, 11, and 12. Tacrolimus (0.05 mg/kg twice a day, adjusted to trough level of 10-15 ng/mL) was given starting on day -1. When the subject met weaning criteria, tacrolimus was tapered over a period of no less than 8 weeks beginning 60 days post-transplant. |
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| Secondary | Change in Renal Function | Change in renal function as seen in serum creatinine values from baseline until study completion or participant termination. Baseline is defined as the lowest serum creatinine collected during stabilization period or in the four weeks following the end of the stabilization period. The stabilization period is defined as four consecutive creatinine values close in value (not differing more than 0.3 mg/dL). Higher results indicate poorer kidney function, as creatinine is removed from the body by the kidneys. | | Posted | | Mean | Standard Deviation | mg/dL | | Transplantation until study completion or participant termination (up to five years) | | | | ID | Title | Description |
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| OG000 | MEDI-507 | Recipients received a conditioning treatment that started with rituximab (375 mg/m^2 infusion) on days -7, -2, 5 and 12. Cyclophosphamide (60 mg/kg) on days -5 and -4, followed by hemodialysis. MEDI-507, a T-cell-depleting agent, was given at 0.1 mg/kg on day -2 and 0.6 mg/kg on days -1, 0 and 1. Thymic irradiation (700 cGy) was given on day -1. Recipients underwent surgical transplantation of a donor kidney on day 0. During kidney transplant, bone marrow cells donated by the same donor as the kidney were given through a plastic tube placed in a vein in the chest, underneath the collarbone. Prednisone was started at 2 mg/kg/day on day 4 and tapered off by day 20. A steroid pulse (methylprednisolone 500 mg) was given on days 10, 11, and 12. Tacrolimus (0.05 mg/kg twice a day, adjusted to trough level of 10-15 ng/mL) was given starting on day -1. When the subject met weaning criteria, tacrolimus was tapered over a period of no less than 8 weeks beginning 60 days post-transplant. |
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| Secondary | Percentage of Participants With Graft Survival Through 156 Weeks | The percentage of participants with graft survival from transplantation through 156 weeks. Participants who terminated from the study prior to Week 156 without meeting the event were excluded. Graft survival is defined as the time to week 156 or graft loss. Graft loss is defined as the day on which a graft is deemed irreversibly nonfunctional and dialysis is begun, a transplantectomy is performed, or the participant is re-transplanted, whichever comes first. Six consecutive weeks of dialysis are required for the diagnosis of graft loss, though the date of graft loss will be defined as the date of first dialysis. | Participants who were followed at least three years after transplantation or experienced graft loss prior to week 156 | Posted | | Number | 95% Confidence Interval | Percentage of Participants | | Transplantation until week 156 | | | | ID | Title | Description |
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| OG000 | MEDI-507 | Recipients received a conditioning treatment that started with rituximab (375 mg/m^2 infusion) on days -7, -2, 5 and 12. Cyclophosphamide (60 mg/kg) on days -5 and -4, followed by hemodialysis. MEDI-507, a T-cell-depleting agent, was given at 0.1 mg/kg on day -2 and 0.6 mg/kg on days -1, 0 and 1. Thymic irradiation (700 cGy) was given on day -1. Recipients underwent surgical transplantation of a donor kidney on day 0. During kidney transplant, bone marrow cells donated by the same donor as the kidney were given through a plastic tube placed in a vein in the chest, underneath the collarbone. Prednisone was started at 2 mg/kg/day on day 4 and tapered off by day 20. A steroid pulse (methylprednisolone 500 mg) was given on days 10, 11, and 12. Tacrolimus (0.05 mg/kg twice a day, adjusted to trough level of 10-15 ng/mL) was given starting on day -1. When the subject met weaning criteria, tacrolimus was tapered over a period of no less than 8 weeks beginning 60 days post-transplant. |
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| Secondary | Percentage of Participants Surviving Through 156 Weeks | The percentage of participants who survived from transplantation through 156 weeks. Participants who terminated from the study prior to Week 156 without meeting the event were excluded. | Participants who were followed at least three years after transplantation or experienced death prior to week 156 | Posted | | Number | 95% Confidence Interval | Percentage of Participants | | Transplantation until week 156 | | | | ID | Title | Description |
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| OG000 | MEDI-507 | Recipients received a conditioning treatment that started with rituximab (375 mg/m^2 infusion) on days -7, -2, 5 and 12. Cyclophosphamide (60 mg/kg) on days -5 and -4, followed by hemodialysis. MEDI-507, a T-cell-depleting agent, was given at 0.1 mg/kg on day -2 and 0.6 mg/kg on days -1, 0 and 1. Thymic irradiation (700 cGy) was given on day -1. Recipients underwent surgical transplantation of a donor kidney on day 0. During kidney transplant, bone marrow cells donated by the same donor as the kidney were given through a plastic tube placed in a vein in the chest, underneath the collarbone. Prednisone was started at 2 mg/kg/day on day 4 and tapered off by day 20. A steroid pulse (methylprednisolone 500 mg) was given on days 10, 11, and 12. Tacrolimus (0.05 mg/kg twice a day, adjusted to trough level of 10-15 ng/mL) was given starting on day -1. When the subject met weaning criteria, tacrolimus was tapered over a period of no less than 8 weeks beginning 60 days post-transplant. |
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| Secondary | Time to Neutrophil Recovery Following Transplant | Time (in days) until neutrophil recovery following transplant. Neutrophil recovery is defined as an absolute neutrophil count (ANC) > 500/mm^3 at three consecutive assessments on different days post-transplant. Time to recovery is time from transplantation until the first assessment date used to confirm the recovery. | | Posted | | Mean | Standard Deviation | days | | Transplantation until study completion or participant termination (participants followed up to five years) | | | | ID | Title | Description |
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| OG000 | MEDI-507 | Recipients received a conditioning treatment that started with rituximab (375 mg/m^2 infusion) on days -7, -2, 5 and 12. Cyclophosphamide (60 mg/kg) on days -5 and -4, followed by hemodialysis. MEDI-507, a T-cell-depleting agent, was given at 0.1 mg/kg on day -2 and 0.6 mg/kg on days -1, 0 and 1. Thymic irradiation (700 cGy) was given on day -1. Recipients underwent surgical transplantation of a donor kidney on day 0. During kidney transplant, bone marrow cells donated by the same donor as the kidney were given through a plastic tube placed in a vein in the chest, underneath the collarbone. Prednisone was started at 2 mg/kg/day on day 4 and tapered off by day 20. A steroid pulse (methylprednisolone 500 mg) was given on days 10, 11, and 12. Tacrolimus (0.05 mg/kg twice a day, adjusted to trough level of 10-15 ng/mL) was given starting on day -1. When the subject met weaning criteria, tacrolimus was tapered over a period of no less than 8 weeks beginning 60 days post-transplant. |
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| Secondary | Time to Platelet Recovery Following Transplant | Time (in days) until platelet recovery following transplant. Platelet recovery is defined as a platelet count >20,000 /mm^3 and where no transfusion is required. Time to recovery is time from transplantation until platelet value recovers. | | Posted | | Mean | Standard Deviation | days | | Transplantation until study completion or participant termination (participants followed up to five years) | | | | ID | Title | Description |
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| OG000 | MEDI-507 | Recipients received a conditioning treatment that started with rituximab (375 mg/m^2 infusion) on days -7, -2, 5 and 12. Cyclophosphamide (60 mg/kg) on days -5 and -4, followed by hemodialysis. MEDI-507, a T-cell-depleting agent, was given at 0.1 mg/kg on day -2 and 0.6 mg/kg on days -1, 0 and 1. Thymic irradiation (700 cGy) was given on day -1. Recipients underwent surgical transplantation of a donor kidney on day 0. During kidney transplant, bone marrow cells donated by the same donor as the kidney were given through a plastic tube placed in a vein in the chest, underneath the collarbone. Prednisone was started at 2 mg/kg/day on day 4 and tapered off by day 20. A steroid pulse (methylprednisolone 500 mg) was given on days 10, 11, and 12. Tacrolimus (0.05 mg/kg twice a day, adjusted to trough level of 10-15 ng/mL) was given starting on day -1. When the subject met weaning criteria, tacrolimus was tapered over a period of no less than 8 weeks beginning 60 days post-transplant. |
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| Secondary | Percentage of Participants Experiencing a Clinically Significant Invasive or Resistant Opportunistic Infection | Clinically significant invasive or resistant opportunistic infections include cytomegalovirus, herpes zoster, and candida. | | Posted | | Number | 95% Confidence Interval | Percentage of Participants | | Transplantation until study completion or participant termination (participants followed up to five years) | | | | ID | Title | Description |
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| OG000 | MEDI-507 | Recipients received a conditioning treatment that started with rituximab (375 mg/m^2 infusion) on days -7, -2, 5 and 12. Cyclophosphamide (60 mg/kg) on days -5 and -4, followed by hemodialysis. MEDI-507, a T-cell-depleting agent, was given at 0.1 mg/kg on day -2 and 0.6 mg/kg on days -1, 0 and 1. Thymic irradiation (700 cGy) was given on day -1. Recipients underwent surgical transplantation of a donor kidney on day 0. During kidney transplant, bone marrow cells donated by the same donor as the kidney were given through a plastic tube placed in a vein in the chest, underneath the collarbone. Prednisone was started at 2 mg/kg/day on day 4 and tapered off by day 20. A steroid pulse (methylprednisolone 500 mg) was given on days 10, 11, and 12. Tacrolimus (0.05 mg/kg twice a day, adjusted to trough level of 10-15 ng/mL) was given starting on day -1. When the subject met weaning criteria, tacrolimus was tapered over a period of no less than 8 weeks beginning 60 days post-transplant. |
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