A Modular Phase I/II, Open-label, Multi-Centre Study to Evaluate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Preliminary Efficacy of AZD3632 Monotherapy or in Combination With Anticancer Agents in Participants With Advanced Haematologic Malignancies With KMT2Ar, NPM1m, or Other Genotypes Associated With HOX Overexpression

Key Inclusion Criteria: Core criteria: * Adequate organ function. * Contraceptive use by participants or participant partners should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies. Module 1: * Advanced haematologic malignancy - a) for dose escalation - diagnosis of acute leukemia or myelodysplastic neoplasia (MDS) and harbouring one of the genetic alterations per local testing associated with upregulation of HOX; b) for Backfill - diagnosis of harbouring a KMT2Ar or NPM1m per local testing. * Participants must have me…