A Study to Evaluate Rucaparib in Participants With Solid Tumors and With Deleterious Mutations in HRR Genes

Key Inclusion Criteria: * Unresectable, locally advanced or metastatic solid tumor and relapsed/progressive disease * Measurable disease per RECIST v1.1 or modified RECIST v1.1 and PCWG3 (for prostate cancer) * Have a deleterious mutation (germline or somatic) in BRCA1, BRCA2, PALB2, RAD51C, RAD51D, BARD1, BRIP1, FANCA, NBN, RAD51 or RAD51B. Note: Breast cancer patients that are HER2 negative and have germline BRCA1 or BRCA2 mutations AND patients with epithelial ovarian cancer, fallopian tube cancer, primary peritoneal cancer or metastatic castration-resistant prostate cancer with BRCA1 or BRCA2 mutations are ineligible for this trial. * At least one prior line of therapy extending overall survival or standard of care therapy for advanced disease. Note: Some tumor types have specific inclusion/exclusion criteria for previous treatments. * ECOG 0 or 1 * Tumor tissue available for genomic analysis, or must be willing to have a biopsy if no archival tumor tissue available * Adequate organ function * Life expectancy of 4 months Key Exclusion Criteria: * Active central nervous system brain metastases, leptomeningeal disease or primary tumor of CNS origin * Active second malignancy (Exceptions: Successfully treated malignancy with no active disease for 1 year, surgically cured and/or low-risk tumors, or patients receiving ongoing anticancer hormonal therapy for a previously treated cancer) * Pre-existing gastrointestinal disorders/conditions interfering with ingestion/absorption of rucaparib * Prior treatment with a PARP inhibitor * More than 3 prior lines of chemotherapy in the locally advanced/metastatic setting * History of myelodysplastic syndrome or acute myeloid leukemia