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Study identifier: NCT04008368 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Repeat Peripheral Blood Stem Cell Transplantation for Patients With Sickle Cell Disease and Falling Donor Myeloid Chimerism Levels

Condition: Myeloid Chimerism  ·  Sponsor: National Heart, Lung, and Blood Institute (NHLBI)

PhasePhase 1/Phase 2
Planned participants32
Who can joinAll sexes, 2 Years to 80 Years
Healthy volunteersYes

About this study

Background: Sickle cell disease can often be treated with blood stem cell transplants. But for some people the disease returns. This study will give a second transplant to people whose disease has returned but still have some donor cells in their body. Objective: To cure people s sickle cell disease by giving a second treatment that makes more room in their bone marrow for donor cells. Eligibility: People ages 4 and older with sickle cell disease who had a transplant but the disease returned, and their donor relatives. Donors can be 2 years of age or older. Design: Participants will be screened with medical history, physical exam, and blood tests. Recipients will also be screened with heart and breathing tests, x-rays, a bone marrow sample, and teeth and eye exams. They must have a caregiver. Donors will have 7-8 visits. They will take a drug for 5-6 days to prepare them for the donation. For the donation, blood is taken from a vein in the arm or groin. The stem cells are collected. The rest of the blood is returned. This may be repeated. Recipients will get a long IV line in their arm or chest for about 1-2 months. They will take drugs to help their body accept the donor cells. They will get the donor cells and red blood cell transfusions through the line. They will stay in the hospital about 30 days after the transfusion of donor cells. In first 3 months after the infusion, recipients will have many visits. Then they will have visits every 6 months to 1 year for …

This description comes directly from the study's public registry record.

Talk to the study team

Julia M Varga, R.N.  ·  (301) 402-3595  ·  julia.varga@nih.gov

Courtney F Joseph, M.D.  ·  (301) 402-6496  ·  courtney.fitzhugh@nih.gov

Always discuss trial participation with your own doctor first.

Locations (1)

National Institutes of Health Clinical CenterBethesda, Maryland, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT04008368