Lisaftoclax (APG-2575) Combined With Azacytidine (AZA) in the Treatment of Patients With Higher-risk Myelodysplastic Syndrome (GLORA-4).

Inclusion Criteria:

1. Newly diagnosed higher-risk MDS.

2. ECOG score of ≤2.

3. Expected survival ≥ 3 months.

4. Adequate organ function.

5. Female subjects of potential childbearing potential have a negative urine or serumpregnancy test before dosing. Subjects of childbearing potential as well as theirpartners voluntarily use contraception deemed effective by the investigator duringthe treatment period and for at least six months after the last dose of study drug.

6. Able to understand and voluntarily sign a written informed consent form, which mustbe signed prior to the performance of any trial-specified study procedures.

7. Subjects are able to complete study procedures and follow-up examinations.

Exclusion Criteria:

1. Concomitant other malignancies or prior malignancies with disease-free intervals ofless than 1 year at the time of signing the informed consent.

2. Have undergone hematopoietic stem cell transplantation.

3. Uncontrolled active infection

4. Use of moderately potent inducers and moderately potent inhibitors of CYP3A4 within 14 days prior to the first dose of study drug.

5. MDS or other conditions that cannot be administered enterally.

6. Any condition that the subject is deemed to be inappropriate to participate in thisstudy after evaluation by the investigator.