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NCT04541277

Combined Inhibition of PD-1 and DNA Hypomethylating Agent +/- Chemotherapy in High-risk AML or Elderly Patients With AML Who Are Unfit for Intensive Chemotherapy

Status unknown Phase 2 Last updated 9 September 2020
What this trial tests

Phase 2 trial testing Tislelizumab in Acute Myeloid Leukemia, in Relapsed or Refractory in 55 participants. Status unknown.

Timeline
1 September 2020
Primary endpoint
30 August 2021
30 August 2022

Quick facts

Lead sponsorChinese PLA General Hospital
PhasePhase 2
StatusStatus unknown
Study typeINTERVENTIONAL
Allocationna
Designsingle group
Maskingnone
Primary purposetreatment
Enrollment55
Start date1 September 2020
Primary completion30 August 2021
Estimated completion30 August 2022
Sites1 location across China

Drugs / interventions tested

Conditions studied

Sponsor

Chinese PLA General Hospital

Who can join

18 and older, any sex, with Acute Myeloid Leukemia, in Relapsed or Refractory or Acute Myeloid Leukemia, Elderly, Unfit. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

This phase II trial studies how well tislelizumab combined with DNA hypomethylation agent +/- CAG regimen (cytarabine, idarubicin / Aclarithromycin, rhG-CSF/ PEG-rhG-CSF) work in treating patients with high-risk acute myeloid leukemia (AML) or AML patients older than 60 years of age who are unfit for standard-dose chemotherapy. The expressions of PD-1 and PD-L1 are increased in AML cells. However, blocking the immune checkpoint alone has limited efficacy as a single agent in highly proliferative leukemia cells. During the recovery period after cytotoxic chemotherapy, the activation of PD-1/PD-L1 pathway may be increased and DNA hypomethylation agents can also up-regulate PD-1, PD-L1 and PD-L2 in AML patients. The up-regulation and activation of above immune checkpoint molecules are related to chemotherapy resistance. Therefore, adding chemotherapy and epigenetic regulation agents to Immune checkpoint blockade therapy may work better through overcoming drug resistance in AML treatment.

Publications & conference data

8 peer-reviewed publications reference this trial (live from Europe PMC):

  1. Natural killer cell-based immunotherapy for acute myeloid leukemia.
    Xu J, Niu T. · · 2020 · cited 83× · PMID 33287858 · DOI 10.1186/s13045-020-00996-x
  2. Targeting PD-1/PD-L1 pathway in myelodysplastic syndromes and acute myeloid leukemia.
    Yang X, Ma L, Zhang X, Huang L, et al · · 2022 · cited 63× · PMID 35236415 · DOI 10.1186/s40164-022-00263-4
  3. Prognostic and therapeutic implications of measurable residual disease in acute myeloid leukemia.
    Aitken MJL, Ravandi F, Patel KP, Short NJ. · · 2021 · cited 40× · PMID 34479626 · DOI 10.1186/s13045-021-01148-5
  4. Immunosuppressive Cell Subsets and Factors in Myeloid Leukemias.
    Swatler J, Turos-Korgul L, Kozlowska E, Piwocka K. · · 2021 · cited 29× · PMID 33801964 · DOI 10.3390/cancers13061203
  5. What Does the Economic Burden of Acute Myeloid Leukemia Treatment Look Like for the Next Decade? An Analysis of Key Findings, Challenges and Recommendations.
    Forsythe A, Sandman K. · · 2021 · cited 16× · PMID 33981169 · DOI 10.2147/jbm.s279736
  6. Single-center phase 2 study of PD-1 inhibitor combined with DNA hypomethylation agent + CAG regimen in patients with relapsed/refractory acute myeloid leukemia.
    Gao XN, Su YF, Li MY, Jing Y, et al · · 2023 · cited 15× · PMID 37166484 · DOI 10.1007/s00262-023-03454-y
  7. The AML immune paradox: decoding escape pathways and pioneering checkpoint, vaccine, and combination strategies.
    Soleimani Samarkhazan H, Shafiei FS, Taghinejad Z, Maleknia M, et al · · 2025 · cited 14× · PMID 40634759 · DOI 10.1007/s10238-025-01795-9
  8. Epigenetic regulators combined with tumour immunotherapy: current status and perspectives.
    Zhang H, Pang Y, Yi L, Wang X, et al · · 2025 · cited 13× · PMID 40119465 · DOI 10.1186/s13148-025-01856-6

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