AZD0901

A Phase II, Open-label, Multi-centre Study to Evaluate Safety, Tolerability, Efficacy, PK, and Immunogenicity of AZD0901 as Monotherapy and in Combination with Anti-cancer Agents in Participants with Advanced Solid Tumours Expressing Claudin 18.2 (CLARITY-PanTumour01)

Novel Combinations in Participants With Locally Advanced Unresectable or Metastatic Gastric or Gastroesophageal Junction Adenocarcinoma

AZD0901 in Participants With Advanced Solid Tumours Expressing Claudin18.2

A Master Protocol of an Open-Label, Multi-Drug, Multi-Centre, Phase II Study to Evaluate the Efficacy, Safety, Tolerability, Pharmacokinetics, and Immunogenicity of Novel Combinations in Participants with Locally Advanced Unresectable or Metastatic Gastric or Gastroesophageal Junction Adenocarcinoma.

A Study of Novel Agents or Combinations as Perioperative Treatment in Participants With Locally Advanced Resectable Gastroesophageal Adenocarcinoma

A Study to Investigate the Effects of AZD0901 Monotherapy in Adult Participants With 2L+ Advanced or Metastatic Gastric or GEJ Adenocarcinoma Expressing CLDN18.2

A Master Protocol for an Open-Label, Multi-Drug, Multi-Center, Phase II Platform Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Preliminary Anti-Tumor Activity of Novel Agents or Combinations as Perioperative Treatment in Participants with Locally Advanced Resectable Gastroesophageal Adenocarcinoma (GEMINI-PeriOp GC)

AZD0901 Compared With Investigator's Choice of Therapy in Participants With Second- or Later-line Advanced or Metastatic Gastric or Gastroesophageal Junction Adenocarcinoma Expressing Claudin18.2

A Phase III Multi-center, Open-label, Sponsor-blinded, Randomized Study of AZD0901 Monotherapy Compared With Investigator’s Choice of Therapy in Second- or Later-Line Adult Participants with Advanced/Metastatic Gastric or Gastroesophageal Junction Adenocarcinoma Expressing Claudin 18.2 (CLARITY-Gastric 01)