The purpose of this study is to evaluate the safety and tolerability of: * casdatifan when taken alone in participants with advanced solid tumor malignancies and clear cell renal cell carcinoma (ccRCC) during the dose escalation stage; and * casdatifan monotherapy and casdatifan in combination with cabozantinib or zimberelimab or zimberelimab and ipilimumab in participants with ccRCC in the dose expansion stage.