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ACTIVE NOT RECRUITING
NCT06001385
PHASE2

HLA-Mismatched Unrelated Donor Peripheral Blood Stem Cell Transplantation With Reduced Dose Post Transplantation Cyclophosphamide GvHD Prophylaxis

Sponsor: Center for International Blood and Marrow Transplant Research

View on ClinicalTrials.gov

Summary

The goal of this clinical trial is to determine the effectiveness of Reduced Dose Post-Transplant Cyclophosphamide (PTCy) in patients with hematologic malignancies after receiving an HLA-Mismatched Unrelated Donor (MMUD) . The main question\[s\] it aims to answer are: * Does a reduced dose of PTCy reduce the occurrence of infections in the first 100 days after transplant? * Does a reduced dose of PTCy maintain the same level of protection against Graft Versus Host Disease (GvHD) as the standard dose of PTCy?

Official title: A Phase II Study of Reduced Dose Post Transplantation Cyclophosphamide as GvHD Prophylaxis in Adult Patients With Hematologic Malignancies Receiving HLA-Mismatched Unrelated Donor Peripheral Blood Stem Cell Transplantation

Key Details

Gender

All

Age Range

18 Years - Any

Study Type

INTERVENTIONAL

Enrollment

313

Start Date

2023-12-08

Completion Date

2026-06-30

Last Updated

2026-02-05

Healthy Volunteers

No

Interventions

DRUG

Busulfan

Given IV or PO pre-transplant as part of conditioning regimen

DRUG

Fludarabine

Given IV pre-transplant as part of conditioning regimen

PROCEDURE

PBSC Hematopoietic Stem Cell Transplantation (HSCT)

Peripheral blood stem cell graft is infused from a mismatched unrelated donor on Day 0

DRUG

Post-Transplant Cyclophosphamide

Cyclophosphamide (25mg/kg) is administered on Day 3 and Day 4 post-transplant as an IV infusion over 1-2 hours. First 20 subjects with a 4-6/8 HLA mismatched unrelated donor will receive an intermediate dose of post-transplant cyclophosphamide of 37.5 mg/kg Day 3 and Day 4 post-transplant.

DRUG

Mesna

Mesna is given in divided doses IV 30 min pre- and at 3, 6, and 8 hours post cyclophosphamide.

DRUG

Tacrolimus

Tacrolimus is given at a dose of 0.05 mg/kg PO or an IV dose of 0.03 mg/kg of ideal body weight (IBW) starting on Day +5 post-transplant with taper recommended at Day + 90 and finished by Day +180.

DRUG

Mycophenolate Mofetil

Mycophenolate mofetil (MMF) is given at a dose of 15 mg/kg three times daily IV or PO from Day +5 to Day +35 post-transplant.

OTHER

Patient Reported Outcomes

Survey assessments will be administered to study participants pre transplant, at Day + 100, Day + 180, and Day +365 post transplant.

DRUG

Melphalan

Given IV pre transplant as part of conditioning regimen

RADIATION

Total-body irradiation

Administered pre-transplant as part of conditioning regimen

DRUG

Cyclophosphamide

Given IV pre-transplant as part of conditioning regimen

Locations (32)

Mayo Clinic Arizona

Phoenix, Arizona, United States

Honor Health

Scottsdale, Arizona, United States

University of Arkansas for Medical Sciences

Little Rock, Arkansas, United States

City of Hope

Duarte, California, United States

University of California San Francisco

San Francisco, California, United States

Stanford University

Stanford, California, United States

Colorado Blood Cancer Institute at Presbyterian St. Luke's

Denver, Colorado, United States

Mayo Clinic Jacksonville

Jacksonville, Florida, United States

University of Miami Sylvester Cancer Center

Miami, Florida, United States

Moffitt Cancer Center

Tampa, Florida, United States

Emory University

Atlanta, Georgia, United States

Greenbaum Cancer Center University of Maryland

Baltimore, Maryland, United States

Tufts University

Boston, Massachusetts, United States

Dana Farber Cancer Institute

Boston, Massachusetts, United States

Karmanos Cancer Institute

Detroit, Michigan, United States

University of Minnesota

Minneapolis, Minnesota, United States

Mayo Clinic

Rochester, Minnesota, United States

Barnes Jewish Hospital / Washington University

St Louis, Missouri, United States

Memorial Sloan Kettering Cancer Center - Adults

New York, New York, United States

University of North Carolina

Chapel Hill, North Carolina, United States

Ohio State Medical Center

Columbus, Ohio, United States

Oregon Health & Science University

Portland, Oregon, United States

The Center for Bone Marrow Transplantation at Geisinger

Danville, Pennsylvania, United States

Abramson Cancer Center

Philadelphia, Pennsylvania, United States

University of Pittsburgh Medical Center

Pittsburgh, Pennsylvania, United States

TriStar Centennial

Nashville, Tennessee, United States

St. David's South Austin Medical Center

Austin, Texas, United States

MD Anderson Cancer Center

Houston, Texas, United States

Methodist Hospital San Antonio

San Antonio, Texas, United States

University of Virginia Health System

Charlottesville, Virginia, United States

Fred Hutchinson Cancer Center

Seattle, Washington, United States

Froedtert & the Medical College of Wisconsin

Milwaukee, Wisconsin, United States