Renal Allograft Tolerance Through Mixed Chimerism
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ClinicalTrials.gov Identifier: NCT01780454 |
Recruitment Status :
Completed
First Posted : January 31, 2013
Results First Posted : September 23, 2020
Last Update Posted : April 19, 2021
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Condition or disease | Intervention/treatment | Phase |
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End Stage Renal Disease | Drug: MEDI-507 Drug: Rituximab Radiation: Total Body Irradiation Radiation: Thymic Irradiation | Phase 1 Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 2 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | Renal Allograft Tolerance Through Mixed Chimerism |
Study Start Date : | March 2013 |
Actual Primary Completion Date : | June 2018 |
Actual Study Completion Date : | June 2020 |

Arm | Intervention/treatment |
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Experimental: Combined Bone Marrow and Kidney Transplantation
Conditioning regimen consisting of Rituximab, MEDI-507, Total Body Irradiation, Thymic Irradiation followed by simultaneous bone marrow and kidney transplantation
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Drug: MEDI-507
T-Cell Depleting Agent Drug: Rituximab B-Cell Depleting Agent Radiation: Total Body Irradiation Bone Marrow Depletion Radiation: Thymic Irradiation |
- Successful Withdrawal of Immunosuppressive Therapy [ Time Frame: 5 years ]The primary endpoint is induction of transient mixed chimerism and renal allograft tolerance without "engraftment syndrome" or "acute kidney injury"
- Number of Participants With Engraftment Syndrome [ Time Frame: 5 Years ]Constellation of symptoms known "Engraftment Syndrome"

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Ages Eligible for Study: | 18 Years to 65 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Key Inclusion Criteria:
- Male or female 18-60 years of age
- Candidate for a living-donor renal allograft with a one haplotype identical donor identified.
- First or second transplant with either a living donor or cadaveric transplant as the first transplant.
- Positive serologic testing for EBV indicating past exposure.
Key Exclusion Criteria:
- ABO blood group-incompatible renal allograft.
- Evidence of anti-HLA antibody within 60 days prior to transplant as assessed by routine methodology (AHG and/or ELISA)
- Positive testing for: HIV, hepatitis B core antigen, or hepatitis C virus or positivity for hepatitis B surface antigen.
- Cardiac ejection fraction < 40% or clinical evidence of insufficiency.
- History of cancer other than basal cell carcinoma of the skin or carcinoma in situ of the cervix.
- Underlying renal disease etiology with a high risk of disease recurrence in the transplanted kidney (such as focal segmental glomerulosclerosis, type I or II nonproliferative glomerulonephritis).
- Prior dose-limiting radiation therapy.
- Abnormal (>2 times lab normal) values for (a) liver function chemistries (ALT, AST, AP), (b) bilirubin, (c) coagulation studies (PT, PTT).
- The presence of any medical condition that the investigator deems incompatible with participation in the trial.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01780454
United States, Massachusetts | |
Massachusetts General Hospital | |
Boston, Massachusetts, United States, 02114 |
Principal Investigator: | A. Benedict Cosimi, M.D. | Massachusetts General Hospital | |
Principal Investigator: | David Sachs, M.D. | Massachusetts General Hospital |
Documents provided by David Sachs M.D., Massachusetts General Hospital:
Responsible Party: | David Sachs M.D., Director, Transplantation Biology Research Center, Massachusetts General Hospital |
ClinicalTrials.gov Identifier: | NCT01780454 |
Other Study ID Numbers: |
2013P000822 |
First Posted: | January 31, 2013 Key Record Dates |
Results First Posted: | September 23, 2020 |
Last Update Posted: | April 19, 2021 |
Last Verified: | March 2021 |
End Stage Renal Disease Renal Transplant Bone Marrow Transplant |
Tolerance Chimerism ESRD |
Kidney Diseases Kidney Failure, Chronic Urologic Diseases Renal Insufficiency, Chronic Renal Insufficiency Rituximab |
Antineoplastic Agents, Immunological Antineoplastic Agents Immunologic Factors Physiological Effects of Drugs Antirheumatic Agents |