A Randomized, Double-blind, Placebo-controlled, Multicenter Phase 2 Study of AK117/Placebo in Combination With Azacitidine in Patients With Newly Diagnosed Higher-risk Myelodysplastic Syndromes

Inclusion Criteria: * Age ≥ 18 years old at the time of enrolment. * Eastern Cooperative Oncology Group (ECOG) performance status score of 0 to 2. * Expected life expectancy ≥ 3 months. * Newly diagnosed HR-MDS, according to the 2016 World Health Organization (WHO) classification with the presence of \< 20% blasts in bone marrow or peripheral blood; Overall IPSS-R score ≥ 3.5. * Ability to undergo the study-required bone marrow sample collection procedures. * Suitable venous access for the study-required blood sampling (i.e., including PK and immunogenicity). * Female patients of childbearing…