This phase II trial tests how well biomarker tests on patients tumor tissue works in selecting personalized treatments for patients with extensive stage small cell lung cancer (ES-SCLC). Biomarker tests look for certain features in cancer cells that may give doctors more information about what is driving cancer and how to treat it. Based on the biomarker test results, study doctors can determine the subtype of ES-SCLC that study treatments can target. This study also tests different types of maintenance treatment for ES-SCLC with drugs durvalumab, saruparib, ceralasertib or monalizumab. Maintenance treatment is given after initial treatment and is given to help keep the cancer under control and prevent it from getting worse. Immunotherapy with monoclonal antibodies, such as durvalumab and monalizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Saruparib is a PARP inhibitor. PARP is a protein that helps repair damaged deoxyribonucleic acid (DNA). Blocking PARP may prevent cancer cells from repairing their damaged DNA, causing them to die. PARP inhibitors are a type of targeted therapy. Ceralasertib may stop the growth of tumor cells and may kill them by blocking some of the enzymes needed for tumor cell growth. Giving biomarker selected personalized maintenance treatment with durvalumab, saruparib, ceralasertib or monalizumab may work better in treating patients with ES-SCLC.
To test participants' tissue specimens to determine their eligibility to 1 of the 3 treatment cohorts created based on their small cell lung cancer (SCLC) subtype and SLFN11 status. (Screening) II. To compare progression-free survival (PFS) in participants with extensive stage SCLC (ES-SCLC) (subtypes A or N & SLFN11 positive) or ES-SCLC (subtype P) randomized to durvalumab (MEDI4736) with or without saruparib (AZD5305) as maintenance therapy following induction chemoimmunotherapy with platinum, etoposide, and durvalumab (MEDI4736). (Cohort A) III. To compare PFS in participants with ES-SCLC subtypes A or N & SLFN11 negative randomized to durvalumab with or without ceralasertib (AZD6738) as maintenance therapy following induction chemoimmunotherapy with cisplatin or carboplatin, etoposide, and durvalumab (MEDI4736). (Cohort B) IV. To compare PFS participants with ES-SCLC subtype I randomized to durvalumab (MEDI4736) with or without monalizumab (IPH2201) as maintenance therapy following induction chemoimmunotherapy with cisplatin or carboplatin, etoposide, and durvalumab (MEDI4736). (Cohort C)
Detailed eligibility criteria is available on clinicaltrials.gov. These requirements will be discussed with your doctor and/or study representative. Click the NCT number link below to learn more about this study on ClinicalTrials.gov
Protocol Number: 25-2349
More information available at ClinicalTrials.gov: NCT06769126
Principal Investigator