RecruitingDrug trialStudy of AZD4956 as Monotherapy and in Combination With Anti-Cancer Agents in Participants With Advanced/Metastatic Homologous Recombination Deficient Solid TumoursThe purpose of this modular, first trial in human study is to assess the safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PD), and preliminary efficacy of ascending dose levels (DLs) of AZD4956 monotherapy and in combination with other anti-cancer agents in participants with advanced/metastatic solid tumours with homologous recombination repair (HRR) deficiencies.