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 APG-2575 PLUS AZACITIDINE

What's the purpose of this trial?

This is a Phase Ib/II, open-label, multi-center study evaluating the safety, tolerability, efficacy and PK of APG-2575 in combination with Azacitidine in the patients with AML/MPAL or MDS/CMML. The study consists of dose escalation (Part I) and dose expansion phase (Part II)

This trial is currently open and accepting patients.

What will happen during the trial?

You may be able to join this trial if you:

The following criteria is a partial list of reasons why patients may be eligible to participate in this clinical trial. Further evaluation with a medical professional is required.

Inclusion Criteria:

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).

Exclusion Criteria:

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.

Additional Trial Information

Phase 1/2

Enrollment: 24 patients (estimated)

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Trial Locations

All Trial Locations

View all clinical trial locations sorted by state.


UCLA Medical Center of Hematology/Oncology

Los Angeles, CA

Open and Accepting

North Carolina

Novant Health Presbyterian Medical Center Novant Health

Charlotte, NC

Open and Accepting

Novant Health Forsyth Medical Center - Silas Creek

Winston-Salem, NC

Open and Accepting


MD Anderson Cancer Center The University of Texas

Houston, TX

Open and Accepting


Swedish Medical Center (Ballard Campus)

Seattle, WA

Open and Accepting
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