MEDI5752 in Combination With Carboplatin Plus Pemetrexed in Unresectable Pleural Mesothelioma

Key Inclusion Criteria: * Participant must be ≥ 18 years at the time of screening * Histologically proven diagnosis of pleural mesothelioma with known histology (epithelioid vs. non-epithelioid) * Advanced unresectable disease that cannot be treated with curative surgery (with or without chemotherapy) * WHO/ECOG performance status of 0 or 1 with no deterioration (that is, ECOG PS\>1) over the previous 2 weeks prior to day of first dosing * Has measurable disease per modified RECIST1.1 * Has adequate bone marrow reserve and organ function at baseline Key Exclusion Criteria: * As judged by the investigator, any condition that would interfere with evaluation of the investigational product or interpretation of participant safety or study results. * Active or prior documented autoimmune or inflammatory disorders * History of another primary malignancy with exceptions. * Uncontrolled intercurrent illness * Tuberculosis, hepatitis B (HBV) or hepatitis C (HCV), human immunodeficiency virus (HIV) infection that is not well controlled * Any concurrent chemotherapy, radiotherapy, investigational, biologic, or hormonal therapy for cancer treatment * Untreated or progressive CNS metastatic disease