Azacytidine Prior to in Vivo T-cell Depleted Allo Stem Cell Transplant for Patients With Myeloid Malignancies in CR

Myelodysplastic Syndromes Clinical Trial

Official title: Epigenetic Priming With 5-Azacytidine Prior to in Vivo T-cell Depleted Allogeneic Stem Cell Transplantation for Patients With High Risk Myeloid Malignancies in Morphologic Remission

Status Completed

Clinical Trial Summary

The purpose of this study is to determine whether 5-Azacytidine priming before the conditioning regimen for subjects receiving a hematopoietic stem cell transplant is an effective treatment for high risk myeloid malignancies in complete remission (CR).

Clinical Trial Description

This open label two-step phase II study is designed to determine the safety and efficacy of epigenetic priming with 5-Azacytidine immediately prior to reduced intensity conditioning for an in vivo T-cell depleted hematopoietic stem cell transplantation for high risk myeloid malignancies in complete remission (CR).

Subjects will be given a five day course of subcutaneous 5-azacytidine, followed by a reduced intensity conditioning regimen of fludarabine, melphalan and total body irradiation (TBI) prior to an allogeneic hematopoietic stem cell transplantation from a related or unrelated Human Leukocyte Antigen (HLA) matched donor.

The effect of 5-azacytidine on global gene methylation will be assessed. Evaluations for safety, in particular for graft failure, transplant related mortality and acute graft versus host disease will be made on a weekly basis. Efficacy, as defined by disease free survival, will be evaluated with a bone marrow biopsy at the standard time points, which are one-, three-, six-, and twelve-months after transplant and upon clinical suspicion within regular follow-up visits - weekly for the first 3 months, then biweekly for 3 months, then monthly until one-year post-stem cell transplant. Thereafter, unless otherwise dictated by the clinical scenario, the follow up visits will be every 3 months. ;

Related Conditions & MeSH terms

• Leukemia, Erythroblastic, Acute
• Myelodysplastic Syndromes

• NCT number: NCT02497404
• Study type: Interventional
• Source: Weill Medical College of Cornell University
• Status: Completed
• Phase: Phase 2
• Start date: February 13, 2015
• Completion date: June 17, 2021