Phase I Clinical Study of Haplo-HSCT Combined With Hypoxic 3D-Cultured Umbilical Cord MSC for the Treatment of SAA
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: 3D hypoxia-preconditioned UC-MSC group, 2D UC-MSC group.
- Who it may be relevant to
- Registry conditions: Severe Aplastic Anemia (SAA), Severe Aplastic Anemia, Refractory, Severe Aplastic Anemia. Basic parameters: 6 years — 60 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- China
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Efficacy and Safety of Sequential Infusion of Hypoxic 3D-Cultured Umbilical Cord Mesenchymal Stem Cells in Haploidentical Hematopoietic Stem Cell Transplantation for Severe Aplastic Anemia: A Multicenter, Randomized, Phase 1 Trial
Overview
Efficacy and Safety of Sequential Infusion of Hypoxic 3D-Cultured Umbilical Cord Mesenchymal Stem Cells in Haploidentical Hematopoietic Stem Cell Transplantation for Severe Aplastic Anemia: A Multicenter, Randomized, Phase 1 Trial
Detailed description
The enrolled patients with an HLA-haploidentical relative for HSCT received the fludarabine (Flu) + cyclophosphamide (Cy) + antithymocyte globulin (ATG) conditioning regimen. For the patients with acute SAA (SAA-I), intravenous administration of 30 mg/(m2 day) of Flu and 500-800 mg/(m2 day) of Cy was performed from days -5 to -2, and 5μg/(kg day) of ATG was administered from days -4 to -1. For the patients with chronic SAA (SAA-II), the same treatment of ATG and Cy was applied as above with the supplement of 0.6 mg/(kg 6 h) of busulfan (BU) from days -8 to -5 prior to transplantation. Donor selection and hematopoietic stem cell mobilization and collection were conducted based on the consensus of The Chinese Society of Hematology regarding indications, conditioning regimens, and donor selection for allogeneic hematopoietic stem cell transplantation. On day 0, HSCs were infused intravenously. Both groups received 5 × 10⁵/kg UC-MSCs at 4 h before HSC infusion. The control group was transfused with conventional 2D-cultured UC-MSCs, whereas the experimental group received 3D hypoxia-preconditioned UC-MSCs. Standard GVHD prophylaxis consisted of mycophenolate mofetil, cyclosporine A, and methotrexate (MTX).
Interventions
- Drug 3D hypoxia-preconditioned UC-MSC group
5 × 10⁵/kg 3D hypoxia-preconditioned UC-MSCs at 4 h before HSC infusion - Drug 2D UC-MSC group
5 × 10⁵/kg 2D UC-MSCs at 4 h before HSC infusion
Primary outcome measures
- Adverse events [Time frame: The incidence and severity of adverse events (AEs) within the first 150 days after haplo-HSCT]
Secondary outcome measures (5)
- acute GVHD [Time frame: 100days after HSCT]
- chronic GVHD [Time frame: 1 years after HSCT]
- Surivial [Time frame: 1 year after HSCT]
- Rates of relapse [Time frame: UP to 2 years after HSCT]
- The implantation [Time frame: Up to 4 weeks after HSCT]
Eligibility criteria
The inclusion criteria were (1) age 6 to 60 years; (2) diagnosis of SAA or very SAA according to the International Aplastic Anemia Study Group\[21\]; (3) without any severe pulmonary, cardiac, liver, or renal diseases or any active infection; and (4) adequate performance status (Eastern Cooperative Oncology Group score 0-2). Exclusion Criteria：(1)Age 6 years or > 60 years; (2)Failure to meet the IAASG-defined diagnosis of SAA/vSAA, or confirmed (3)Fanconi anemia, congenital aplastic anemia (e.g., dyskeratosis congenita, Diamond-Blackfan anemia); (4)Presence of severe pulmonary, cardiac, hepatic, or renal insufficiency; Uncontrolled active infection; (5)Eastern Cooperative Oncology Group (ECOG) performance status score ≥ 3.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Quadruple blind
- Primary purpose
- Treatment
Study locations
China · 1 center
- 28 Fuxing Road, Beijing, China. — Beijing
Identifiers
NCT: NCT07299123 · S2021-384-01