Milder chemo before stem cell transplant shows promise for rare blood disorders
NCT ID NCT04528355
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tracks 50 children and adults with non-malignant disorders like immune deficiencies and anemias who receive a stem cell transplant after a reduced-intensity chemotherapy regimen. The goal is to see if this approach improves survival and reduces severe graft-versus-host disease. Researchers will collect medical data from participants' charts over time.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- stem cell transplant (umbilical cord blood, bone marrow, or peripheral blood stem cells) with reduced-intensity chemotherapy (alemtuzumab, melphalan, thiotepa, fludarabine, hydroxyurea)
- What this could lead to
- If successful, this could improve survival and reduce severe graft-versus-host disease for patients with non-malignant disorders needing a stem cell transplant.
- What could go wrong
- This is an early-stage, single-center study with only 50 participants, so results may not apply broadly. Risks include graft failure, infection, and side effects from chemotherapy.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 50 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2020
- Expected to finish
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Jun 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
patients with Non-Malignant Disorders Undergoing Umbilical Cord Blood, Bone Marrow, or Peripheral Blood Stem Cell Transplantation
- Ages
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2 months to 60 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Patient, parent, or legal guardian must have given written informed consent. 2. Patient must be 2 months to 60 years (inclusive) of age at time of consent for all diagnoses. 3. Patients should have a non-malignant disorder amenable to treatment by stem cell transplantation, including but not limited to the following: A. Primary Immunodeficiency Syndromes * Severe Combined Immune Deficiency (SCID) with NK cell activity * Omenn Syndrome * Bare Lymphocyte Syndrome (BLS) * Combined Immune Deficiency (CID) syndromes * Combined Variable Immune Deficiency (CVID) syndrome * Wiskott-Aldrich Syndrome * Leukocyte adhesion deficiency * Chronic granulomatous disease (CGD) * Hyper IgM (XHIM) syndrome * IPEX syndrome * Chediak-Higashi Syndrome * Autoimmune Lymphoproliferative Syndrome (ALPS) * Hemophagocytic Lymphohistiocytosis (HLH) syndromes * Lymphocyte Signaling defects B. Congenital Bone Marrow Failure Syndromes * Congenital Amegakaryocytic Thrombocytopenia (CAMT) * Osteopetrosis C. Inherited Metabolic Disorders (IMD) * Mucopolysaccharidoses * Hurler syndrome (MPS I) * Hunter syndrome (MPS II) * Leukodystrophies * Krabbe Disease, also known as globoid cell leukodystrophy * Metachromatic leukodystrophy (MLD) * X-linked adrenoleukodystrophy (ALD) * Other inherited metabolic disorders * Alpha Mannosidosis * Gaucher Disease * Other inheritable metabolic diseases where HSCT may be beneficial D. Hereditary Anemias * Thalassemia major * Sickle cell disease (SCD) * Diamond Blackfan Anemia (DBA) E. Inflammatory Conditions * Crohn's Disease or Inflammatory Bowel Disease * IPEX or IPEX-like Syndromes * Rheumatoid Arthritis * Other inflammatory conditions where HSCT may be beneficial 4. Subjects receive either umbilical cord blood, bone marrow, or peripheral blood stem cell transplant with an alemtuzumab, melphalan, thiotepa, fludarabine and hydroxyurea-based, reduced-intensity conditioning regimen, according to clinical practice at UPMC Children's Hospital of Pittsburgh. There are no exclusion criteria.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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UPMC Children's Hospital of Pittsburgh
RECRUITINGPittsburgh, Pennsylvania, 15224, United States
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