Arun Azad, MBBS, PhD, FRACP, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia, discusses the Phase II multicenter ICE-PAC study (ACTRN12618000954224) of avelumab combined with stereotactic ablative body radiotherapy (SABR) in metastatic castration-resistant prostate cancer (mCRPC). Dr Azad explains how SABR can be used to create a more immunogenic environment, potentially improving the efficacy of immunotherapies. The study reported an objective response rate of 31%. This interview took place during the 2021 Genitourinary Cancers Symposium.