This clinical trial is focused on studying treatments for Stage III Non-Small Cell Lung Cancer (NSCLC), a type of lung cancer that is locally advanced and cannot be removed by surgery. The study involves several medications, including Pembrolizumab (also known by its code name MK-3475), Olaparib, Durvalumab, Paclitaxel, Carboplatin, Etoposide, Pemetrexed, and Cisplatin. Some participants will receive a combination of these drugs along with a placebo, which is a substance with no active medication.
The purpose of the study is to compare the effectiveness of different treatment combinations in managing NSCLC. Participants will receive treatments through intravenous infusions or oral tablets, depending on the medication. The study will follow a specific course where participants will first receive a combination of Pembrolizumab with concurrent chemoradiation therapy, followed by either continued Pembrolizumab with or without Olaparib, or a switch to Durvalumab. The study aims to observe how these treatments affect the progression of the disease and overall survival of the participants.
Throughout the study, participants will be monitored for any side effects and changes in their health status. The trial will also assess the impact of the treatments on the quality of life, including symptoms like cough, chest pain, and breathing difficulties. The study is expected to continue until 2026, providing valuable insights into the management of Stage III NSCLC.



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