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RecruitingLast updated: 22 December 2023

APG2575: This study is evaluating how safe, tolerable and effective targeted therapy in combination with chemotherapy is in people with acute myeloid leukaemia, mixed phenotype acute leukaemia, chronic myelomonocytic leukaemia and higher-risk myelodysplastic syndromeA Phase Ib/II Study of APG-2575 in Combination With Azacitidine in Patients With Acute Myeloid Leukemia (AML), Mixed Phenotype Acute Leukemia (MPAL), Chronic Myelomonocytic Leukemia (CMML) and Higher-Risk Myelodysplastic Syndrome (MDS

Clinical summary


This trial is evaluating a targeted therapy called APG-2575 in combination with chemotherapy (azacitidine), and will be run in two stages. In the first stage (dose escalation), cohorts of participants will receive APG2575 in escalating doses in combination with azacitidine. Once the maximum tolerated dose and recommended phase 2 dose of APG-2575 has been established, the safety and effectiveness of this dose when given in combination will be further evaluated in stage two (dose expansion).


This trial is treating patients with acute myeloid leukaemia, mixed phenotype acute leukaemia, chronic myelomonocytic leukaemia and higher-risk myelodysplastic syndrome


Blood Cancers Haematological


People18 - 99



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Trial sponsor

Ascentage Pharma Group Inc.

Scientific Title

A Phase Ib/II Study of APG-2575 in Combination With Azacitidine in Patients With Acute Myeloid Leukemia (AML), Mixed Phenotype Acute Leukemia (MPAL), Chronic Myelomonocytic Leukemia (CMML) and Higher-Risk Myelodysplastic Syndrome (MDS



Patients with a diagnosis of histologically confirmed relapsed or refractory (R/R) acute myeloid leukemia (AML) or mixed phenotype acute leukemia (MPAL) or Chronic Myelomonocytic Leukemia (CMML) or relapsed/refractory Higher-Risk MDS by 2016 WHO classification for which no available standard therapies are indicated or anticipated to result in a durable response.

  • MPAL will include biphenotypic leukemia, bilineal leukemia, undifferentiated leukemia, mixed lineage leukemia, leukemia of ambiguous lineage, T/myeloid leukemia, B/myeloid leukemia, or other diagnosis indicating the presence of multiple lineages within the cell population.
  • Relapsed/refractory MDS will be defined as prior receipt of 4 cycles of HMA therapy with failure to attain a response, or progression of disease or relapse at any time after prior response to HMA therapy with Overall Revised International Prognostic Scoring System (IPSS-R) score > 3 (intermediate, high or very high).


  1. Pregnant women.
  2. Uncontrolled intercurrent illness including, but not limited to active uncontrolled infection, symptomatic congestive heart failure (NYHA Class III or IV), unstable angina pectoris, clinically significant cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
  3. Have had leukemia therapy within 14 days prior to starting investigational drug.

    However, patients with rapidly proliferative disease may receive hydroxyurea as needed until 24 hours prior to starting therapy on this protocol and during the first cycle of study.

  4. Have taken strong inhibitors or inducers of CYP3A4 within 7 days prior to the first dose of APG-2575.
  5. Have acute promyelocytic leukemia (French-American-British Class M3 AML or WHO classification APL with PML-RARA) or AML/MPAL with BCR-ABL1 positive.
  6. Active infection requiring systemic antibiotic/antifungal medication, known clinically active hepatitis B or C, or HIV infection or active COVID-19. (Patients who have received COVID-19 vaccination will be considered as eligible for the study.)
  7. Have active/ongoing graft-versus host disease (GVHD) or require continued treatment with systemic immunosuppressive agents (calcineurin inhibitors within 4 weeks prior to the first dose).
  8. Myeloablative therapy with autologous or allogeneic hematopoietic stem cell rescue within 6 months of study treatment initiation.
  9. Documented hypersensitivity to any of the components of the therapy program.
  10. Active, uncontrolled CNS leukemia.
  11. Men and women of childbearing potential who do not practice contraception. Women of childbearing potential and men must agree to use at least 1 form of barrier birth control (such as condom) prior to study entry and for the duration of study participation.
  12. History of other malignancies within 2 years prior to study entry, with the exception of:

    • Adequately treated in situ carcinoma of the cervix uteri or carcinoma in situ of breast.
    • Basal cell carcinoma of the skin or localized squamous cell carcinoma of the skin.
    • Previous malignancy confined and surgically resected (or treated with other modalities) with curative intention requires discussion with sponsor.
  13. Failure to have recovered (Grade > 1) from prior treatment (including chemotherapy, targeted therapy, immunotherapy, experimental agents, radiation, or surgery), except for alopecia.
  14. Unable to swallow tablets or malabsorption syndrome, disease significantly affecting gastrointestinal function, or resection of the stomach or small bowel, symptomatic inflammatory bowel disease or ulcerative colitis, or partial or complete bowel obstruction.
  15. Significant screening electrocardiogram (ECG) abnormalities including left bundle branch block, 2nd degree atrioventricular (AV) block type II, 3rd degree block, or corrected QT interval (QTc) ≥470 msec.
  16. Any other condition or circumstance that would, in the opinion of the investigator, make the patient unsuitable for participation in the study.


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  • You have had treatment, but your cancer has come back.


  • You have been diagnosed with a prior or secondary type of cancer.
  • You have certain types of non-cancer medical conditions.
  • You have had certain treatments, surgical procedures or drugs.

Clinical trials have complex eligibility criteria.

Ask your doctor if this trial could be right for you.

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