A Study of Apalutamide Combined With GnRH Agonist in Participants With Androgen Receptor Positive Salivary Gland Carcinoma

Inclusion Criteria: * Histologically confirmed salivary gland carcinoma (SGC) by local pathology * Androgen receptor (AR) expressing SGC: Local testing of AR-positivity will be performed as standard of care for the eligibility confirmation. AR-positivity will be defined according to immunohistochemistry (IHC) staining of tumor tissue with at least 1 percent (%) of cell nuclei staining positive. Tissue should be available for the central confirmation of AR-positivity, but the central result of AR positivity will not be required for initiating the study intervention * Locally advanced or recurrent/metastatic SGC * Measurable lesion(s) according to the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 * Eastern Cooperative Oncology Group (ECOG) performance status 0, 1 or 2 Exclusion Criteria: * Treatment with any other investigational agent or participation in another clinical study with therapeutic intent within 30 days prior to first dose. Treatment with a drug that has a short half life (t1/2) (for example, less than \[\<\] 1 day) may be eligible in accordance with the discussion with the sponsor's medical monitor * Radiographically confirmed brain metastases. In case of history of brain metastases that were previously treated and not recurred for at least 6 months, they are considered eligible * Toxicities from previous anticancer therapies should have resolved to baseline levels or to Grade 1 or less (except for all grade alopecia, and for peripheral neur…