Efficacy and Safety of UC-MSCs for the Treatment of Steroid-resistant aGVHD Following Allo-HSCT

Peking University

Status and phase: Completed; Phase 3

Conditions: Graft Vs Host Disease

Treatments: Drug: UC-MSC; Drug: Anti-CD25 mAb

Study type: Interventional

Funder types: Other

Identifiers

NCT04738981

GVHD-PKU2021

Details and patient eligibility

About

Randomized, open-label, multicenter study to investigate the efficacy and safety of umbilical cord-derived mesenchymal stem cells (UC-MSC) for the treatment of steroid-resistant acute graft-versus-host disease (aGVHD) following allogeneic hematopoietic stem cell transplantation (allo-HSCT), with a view to establishing an effective treatment protocol for steroid-resistant aGVHD.

Full description

A total of 130 patients with steroid-resistant aGVHD after allo-HSCT are enrolled in this multicenter, randomized, controlled trial. Patients were randomized to UC-MSC + anti-CD25 monoclonal antibodies (mAb) group and anti-CD25 mAb group. The complete response (CR) rate after 4 weeks of treatment in the two groups will be compared. Adverse events are also recorded throughout the study.

Enrollment: 130 patients

Sex: All

Ages: 18 to 70 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• 1.Confirmed diagnosed steroid-resistant aGVHD after allo-HSCT. 2. Neutrophile granulocyte (ANC) ≥ 0.5 x 10^9/L. 3. Creatinine below 2 times normal upper limit . 4. Willing and able to sign written informed consent.

Exclusion criteria

• 1. Untoleratation of the treatment. 2. Primary disease are not effectively controlled or are progressing. 3. Active infection (Bacteria, fungi, viruses ). 4. Combined with dysfunction of multiple organ. 5. Female patients who are nursing or pregnant, or who contemplate pregnancy during the study period.

6. Patients who are deemed unsuitable for the study by the investigator.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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130 participants in 2 patient groups

UC-MSC and anti-CD25 mAb

Experimental group

Description:

UC-MSC, iv, 1×10\^6 cells/kg, once a week, for 4 weeks. Anti-CD25 mAb, iv, 20mg，twice in first week and once a week thereafter, 4 weeks. Other treatment would replace it according to clinical experience if aGVHD continue to progress within 3 weeks of treatment or patients are lack of response after 4 weeks of treatment. The treatment would be repeated in another 4 weeks if patients receive partial response after the first 4 weeks of treatment.

Treatment:

Drug: Anti-CD25 mAb

Drug: UC-MSC

Anti-CD25 mAb

Active Comparator group

Description:

Anti-CD25 mAb, iv, 20mg，twice in first week and once a week thereafter, for 4 weeks. Other treatment would replace it according to clinical experience if aGVHD continue to progress within 3 weeks of treatment or patients are lack of response after 4 weeks of treatment. The treatment would be repeated in another 4 weeks if patients receive partial response after first 4 weeks of treatment.

Treatment:

Drug: Anti-CD25 mAb