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Peripheral Blood Versus Bone Marrow Plus Peripheral Blood Grafts for Haploidentical Transplantation in Severe Aplastic Anemia

NCT07629947 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 180

Last updated 2026-06-05

No results posted yet for this study

Summary

Severe aplastic anemia is a life-threatening bone marrow failure disorder. Haploidentical hematopoietic stem cell transplantation has become an important curative treatment option for patients who do not have an HLA-matched sibling donor.

Traditionally, haploidentical transplantation for severe aplastic anemia uses a graft composed of granulocyte colony-stimulating factor-primed bone marrow plus peripheral blood stem cells. However, bone marrow collection is invasive and may increase donor burden. Peripheral blood stem cell collection is simpler and less invasive, but it remains unclear whether using peripheral blood stem cells alone provides similar clinical outcomes without increasing the risk of graft-versus-host disease.

This multicenter, randomized, open-label, non-inferiority trial will compare granulocyte colony-stimulating factor-primed peripheral blood stem cells alone with granulocyte colony-stimulating factor-primed bone marrow plus peripheral blood stem cells as graft sources for haploidentical transplantation in patients with severe or very severe aplastic anemia. Participants will be randomly assigned in a 1:1 ratio to either graft source group. The primary outcome is the cumulative incidence of grade II-IV acute graft-versus-host disease within 100 days after transplantation. Secondary outcomes include engraftment, chronic graft-versus-host disease, infections, immune reconstitution, survival, and donor safety.

Conditions

  • Severe Aplastic Anemia (SAA)

Interventions

PROCEDURE

G-CSF-Primed Peripheral Blood Stem Cell Graft

Haploidentical hematopoietic stem cell transplantation using granulocyte colony-stimulating factor-primed peripheral blood stem cells alone as the graft source. Donors will receive granulocyte colony-stimulating factor mobilization, followed by peripheral blood stem cell collection by apheresis.

PROCEDURE

G-CSF-Primed Bone Marrow Plus Peripheral Blood Stem Cell Graft

Haploidentical hematopoietic stem cell transplantation using granulocyte colony-stimulating factor-primed bone marrow plus peripheral blood stem cells as the graft source. Donors will receive granulocyte colony-stimulating factor mobilization, followed by bone marrow harvest and peripheral blood stem cell collection.

Sponsors & Collaborators

  • Peking University People's Hospital

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
40 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-06-15
Primary Completion
2027-04-15
Completion
2029-12-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07629947 on ClinicalTrials.gov