PD-1 Inhibitor, Azacitidine and Low-dose DLI in AML Relapse After Allo-HSCT

NCT ID: NCT05772273

Last Updated: 2025-11-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

43 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-03-15

Study Completion Date

2026-12-31

Brief Summary

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This study aims to evaluate the efficacy and safety of PD-1 inhibitor, Azacitidine, and low-dose DLI in AML relapse After allogeneic hematopoietic stem cell transplantation

Detailed Description

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Conditions

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Acute Myeloid Leukemia

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Camrelizumab, Azacitidine and low-dose Donor lymphocyte infusion

Patients are given azacytidine for 7 days, followed by 4 DLI treatments on Days 10, 17, 24 and 31, with the dose of DLI and Camrelizumab adjusted according to the donor source. Camrelizumab infusions were given 3 hours after completion of the 1st and 3rd DLIs, respectively.

Group Type EXPERIMENTAL

Azacitidine

Intervention Type DRUG

Azacitidine 75 mg/m2 subcutaneously once daily on days 1-7.

Donor lymphocyte infusion

Intervention Type BIOLOGICAL

The 4 DLI doses (dose range: ±10%) of sib-matched donor HSCT patients were 1×10\^6/kg, 5×10\^6/kg, 1×10\^7/kg, 5×10\^7/kg; The 4 DLI doses (dose range: ±10%) of haploidentical or unrelated donor HSCT patients were 1×10\^5/kg, 5×10\^5/kg, 1×10\^6/kg, 5×10\^6/kg.

Camrelizumab

Intervention Type DRUG

Camrelizumab 200mg Q2W for sib-matched donor HSCT patients, 100mg Q2W for haploidentical or unrelated donor HSCT patients.

Interventions

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Azacitidine

Azacitidine 75 mg/m2 subcutaneously once daily on days 1-7.

Intervention Type DRUG

Donor lymphocyte infusion

The 4 DLI doses (dose range: ±10%) of sib-matched donor HSCT patients were 1×10\^6/kg, 5×10\^6/kg, 1×10\^7/kg, 5×10\^7/kg; The 4 DLI doses (dose range: ±10%) of haploidentical or unrelated donor HSCT patients were 1×10\^5/kg, 5×10\^5/kg, 1×10\^6/kg, 5×10\^6/kg.

Intervention Type BIOLOGICAL

Camrelizumab

Camrelizumab 200mg Q2W for sib-matched donor HSCT patients, 100mg Q2W for haploidentical or unrelated donor HSCT patients.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Patients with a diagnosis of AML relapse after allogeneic hematopoietic stem cell transplantation.
2. Adequate organ function.
3. Be able to understand and sign informed consent.
4. Age 18 to 60 years old.
5. Serum pregnancy test for females of childbearing potential that is negative within one week prior to initiation of first dose of treatment. Female patients of childbearing potential and sexually active males must agree to use a highly effective method of contraception throughout the study and for at least 90 days after the last dose of assigned treatment.
6. ECOG performance status ≤ 1.
7. Known HLA-matched donor without contraindications to donate.
8. Life expectancy \> 3 months.

Exclusion Criteria

1. Diagnosis of anther malignant disease.
2. Suspected or proven acute or chronic GVHD.
3. Proven central nervous system leukemia.
4. Prior treatment with anti-PD-1, anti-PD-L1, or DLI.
5. HLA loss positive.
6. Known active viral infection with known human immunodeficiency virus (HIV) or viral hepatitis type B (HBV) or C (HCV) or Corona Virus Disease 2019(COVID-19);
7. Uncontrolled systemic fungal, bacterial, or viral infection.
8. Known or suspected hypersensitivity to PD-1 inhibitor or azacytidine.
9. Participation in another clinical study within 3 months.
10. Any serious medical or psychiatric illness that could, in the investigator's opinion, potentially interfere with the completion of study procedures.
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Jiangsu HengRui Medicine Co., Ltd.

INDUSTRY

Sponsor Role collaborator

The First Affiliated Hospital of Soochow University

OTHER

Sponsor Role lead

Responsible Party

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Sheng-Li Xue, MD

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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The First Affiliated Hospital of Soochow University

Suzhou, Jiangsu, China

Site Status RECRUITING

Countries

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China

Central Contacts

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Sheng-Li Xue, M.D.

Role: CONTACT

+86 512 6778 1139

Facility Contacts

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Sheng-Li Xue, M.D.

Role: primary

0086-13328008851

Other Identifiers

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MA-AML-Ⅱ-002

Identifier Type: -

Identifier Source: org_study_id

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