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Abatacept for GVHD Prophylaxis After Hematopoietic Stem Cell Transplantation for Pediatric Sickle Cell Disease

Sickle Cell Disease Clinical Trial

Official title:
Abatacept for Graft Versus Host Disease Prophylaxis After Hematopoietic Stem Cell Transplantation for Pediatric Sickle Cell Disease: a Sickle Transplant Alliance for Research Trial

Clinical Trial Summary

To assess the tolerability of the costimulation blocking agent abatacept (CTLA4-Ig) when added to the standard graft versus host disease (GVHD) prophylaxis regimen of a calcineurin inhibitor and methotrexate in patients receiving early alemtuzumab followed by fludarabine, thiotepa, melphalan, and alemtuzumab for conditioning.

Clinical Trial Description

Outcomes of hematopoietic stem cell transplantation (HSCT) for children and adolescents with sickle cell disease (SCD) have improved. Graft versus host disease (GVHD), however, remains a barrier to success. GVHD accounts for most of the transplant related mortality and much of the morbidity in this setting-in part through the injury it directly causes and in part through the deleterious effects of steroids and the other immunosuppressive agents used to prevent and treat it. The results of pre-clinical studies and a phase I clinical study in patients with hematologic malignancies suggest that the costimulation blocking agent CTLA4-Ig may hold promise an agent for GVHD prophylaxis. In the present trial, the investigators are assessing the tolerability of adding abatacept to standard GVHD prophylaxis-a calcineurin inhibitor and methotrexate-in pediatric SCD patients receiving early alemtuzumab (completed by day -18) followed by fludarabine, thiotepa, and melphalan for conditioning. This trial will provide the foundation for subsequent trials designed to test the long-term hypothesis that abatacept is a safe, steroid-sparing effective adjunct to standard GVHD prophylaxis in this setting. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT02867800
Study type Interventional
Source Columbia University
Contact
Status Completed
Phase Phase 1
Start date July 2016
Completion date December 30, 2023
View Details
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