ClinicalTrials.gg
RecruitingNCT05772273Updated Sep 2, 2026

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

An interventional study of Azacitidine and Donor lymphocyte infusion in Acute Myeloid Leukemia, sponsored by The First Affiliated Hospital of Soochow University. Recruiting at 1 site in China. Per ClinicalTrials.gov, last updated 2026-09-02.

Sponsored by The First Affiliated Hospital of Soochow University · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Started Mar 2023; still recruiting 3 years 7 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
43
Allocation
Not applicable
Sex
All
01

Study summary

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

02

Conditions studied

  • Acute Myeloid Leukemia

Keywords

  • PD-1 inhibitor
  • Azacitidine
  • low-dose DLI
03

In context

Leukemia, Myeloid, Acute

3,667 studies on the registry are indexed under Leukemia, Myeloid, Acute; 816 are open to participants now.

This study's planned enrollment of 43 is close to the median of 40 across 3,005 interventional studies indexed under Leukemia, Myeloid, Acute.

Browse Leukemia, Myeloid, Acute studies →

Lead sponsor

The First Affiliated Hospital of Soochow University is the lead sponsor of 261 studies on the registry; 150 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Patients with a diagnosis of AML relapse after hematopoietic stem cell transplantation.
  2. Adequate organ function.
  3. Be able to understand and sign .
  4. Age 18 to 60 years old.
  5. Serum pregnancy test for females of 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 throughout the study and for at least 90 days after the last dose of assigned treatment.
  6. performance status ≤ 1.
  7. Known HLA-matched donor without to donate.
  8. > 3 months.

Exclusion criteria

Exclusion Criteria:

  1. Diagnosis of anther malignant disease.
  2. Suspected or proven acute or chronic .
  3. Proven central nervous system leukemia.
  4. Prior treatment with , anti-PD-L1, or DLI.
  5. HLA loss positive.
  6. Known active viral infection with known (HIV) or viral hepatitis type B () or C () or Corona Virus Disease 2019(COVID-19);
  7. Uncontrolled systemic fungal, bacterial, or viral infection.
  8. Known or suspected 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.
Terms in these criteria, in plain language(13)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Allogeneic and autologous transplant

Stem cell (bone marrow) transplants. Allogeneic uses cells from a donor; autologous uses your own cells, collected earlier and given back.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

GVHD (graft-versus-host disease)

After a transplant from a donor, the donor’s immune cells attack the recipient’s body, often the skin, gut or liver.

PD-1, PD-L1 and checkpoint inhibitors

PD-1, PD-L1 and CTLA-4 are proteins that act as brakes on the immune system. Checkpoint inhibitors, such as pembrolizumab or nivolumab, block them so the immune system can attack a cancer.

PD-L1 can also be measured in a tumour sample. Some scores count stained tumour cells only (TPS); others also count certain immune cells (CPS). The study names the score and the minimum it uses.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
43 participants (estimated)

Study arms

  • Experimental
    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.

    Drug: Azacitidine · Biological: Donor lymphocyte infusion · Drug: Camrelizumab

Interventions

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

  • BiologicalDonor 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.

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

06

What researchers measure

Primary outcomes

  1. Overall response rate (ORR)

    The overall response (completed remission, completed remission with incomplete blood count recovery)

    Time frame: ORR assessment is at day 39 (±2).

Secondary outcomes

  1. Overall Survival (OS)

    OS is measured from the time of enrollment to this trial to the date of death from any cause; patients not known to have died at last follow-up are censored on the date they were last known to be alive.

    Time frame: 2 years

  2. Progression-Free Survival (PFS)

    PFS is measured from the time of enrollment to this study to progression or death.

    Time frame: 2 years

  3. Adverse events

    It is evaluated and graded according to CTCAE 5.0.

    Time frame: 1 month

07

Study locations

1 of 1 sites recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 2, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT05772273
Responsible party
Sheng-Li Xue, MD (Professor, The First Affiliated Hospital of Soochow University) — Principal investigator
First posted
Mar 16, 2023
Start date
Mar 15, 2023
Primary completion
Jul 1, 2027 (estimated)
Completion
Dec 31, 2027 (estimated)
Last update
Sep 2, 2026

Study contacts

Sheng-Li Xue, M.D.
Contact
slxue@suda.edu.cn
+86 512 6778 1139

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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