Sexual activity and function in male cancer patients receiving targeted an immune therapies.
e21594 Background: Survivorship concerns–including sexual function–move increasingly to the foreground in cancer patient care as systemic therapies improve response and survival. Patients are often committed to long-term treatment with tyrosine kinase inhibitors (TKI) and immune checkpoint inhibitors (ICI) despite poor characterization of their effects on sexual function. We sought to assess sexual activity and function in patients receiving TKI or ICI. Methods: A cohort of men receiving TKI/ICI at the UCSF Helen Diller Family Comprehensive Cancer Center were retrospectively identified. Eligible men were on ongoing TKI/ICI therapy. Detailed questionnaires addressing cancer history, treatment history, and sexual activity/function while receiving therapy were completed. Results: Between January 2013 to September 2016, 51 men completed questionnaires. Mean age was 46 years (SD 12, range 21-72). Most (61%) were CML patients, with 12% RCC, 10% GIST, 6% melanoma, and NET, oligodendroglioma, and HCC comprising remaining histologies. 96% were treated with TKI, and 4% with ICI (pembrolizumab). 32% identified as being married or in a domestic partnership, and 18% identified as single. Only 14% reported no attempted sexual activity. Sexual desire was described as low or very low to none in 29%, average in 39%, and high or very high in 29%. Since cancer diagnosis, 21 (41%) of patients noted a reduced amount of semen upon ejaculation, and all but 5 of those patients noted this as at least somewhat bothersome. 35% of patients reported feeling at least somewhat distressed from sexual experiences since cancer diagnosis, including concern that their time to ejaculation may leave their partners feeling unfulfilled (45%), decreased sensation of orgasm (35%), difficulty maintaining erection until completion of intercourse (23%), and pain/discomfort upon ejaculation (12%). Conclusions: The majority of men on TKI or ICI remain sexually active, with a significant portion reporting sexual dysfunction. These findings highlight the need for oncology care providers to proactively manage sexual dysfunction to improve quality of life for cancer patients. Retrospective and prospective studies are ongoing to further characterize this cohort.