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GVHD Prophylaxis With Methotrexate in Haploidentical HCT Using Posttransplant Cyclophosphamide

Graft Vs Host Disease Clinical Trial

Official title:
GVHD Prophylaxis With Methotrexate and Cyclosporine in Haploidentical Stem Cell Transplantation Using Posttransplant Cyclophosphamide in Hematologic Malignancies: Phase I/II Trial

Clinical Trial Summary

Allogeneic hematopoietic cell transplantation (HCT) is an important therapeutic strategy for many malignant and benign hematologic diseases. Haploidentical HCT has been increasingly used in patients lacking a HLA-matched donor due to its prompt availability, possibly lower cost and results comparable with other donor types. Graft-versus-host disease (GVHD) is the main cause of morbidity and mortality after HSCT, and prophylactic strategies are routinely used. In the context of haploidentical HCT, posttransplant cyclophosphamide plus cyclosporine and mycophenolate mofetil (MMF) is the most common platform used in Brazil. Data comparing MMF and methotrexate (MTX) as GVHD prophylaxes have proved controversial in other donor types, yet some large studies have showed that MTX is associated with lower risk of GVHD and improved long-term outcomes. Moreover, it is known that MMF is a potent inhibitor of natural killer (NK) cells, possibly interfering with the graft-versus-leukemia effect in haploidentical HCT. Given the possible advantages and the absence of consistent evidence regarding safety, efficacy and ideal dosage of MTX as GVHD prophylaxis in this setting, we propose a phase I / II study evaluating this drug in adult patients with hematologic malignancies undergoing haploidentical HCT with posttransplant cyclophosphamide.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT04622956
Study type Interventional
Source University of Sao Paulo General Hospital
Contact Giancarlo Fatobene, MD
Phone +551126617575
Email gian_fatobene@hotmail.com
Status Recruiting
Phase Phase 1/Phase 2
Start date October 7, 2020
Completion date December 2025
View Details
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