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Updated: May 17, 2025

A Bioluminescent and Fluorescent Orthotopic Syngeneic Murine Model of Androgen-dependent and Castration-resistant Prostate Cancer
Published on: March 6, 2018
Patients' Preferences for Attributes of Oral vs Injectable Androgen Deprivation Therapy in Prostate Cancer:
Sean P Collins1, Agnes Hong2, Brett Hauber2
1Department of Radiation Medicine, Georgetown University; MedStar Georgetown University Hospital, Washington, DC, USA.
Purpose:
Patient involvement in treatment decisions improves outcomes, but data on patients' perspectives of medical androgen deprivation therapy (ADT) options for prostate cancer are limited. This study quantified the impact of multiple attributes of currently available oral and injectable ADTs on patient treatment choice.
Patients And Methods:
From February to July 2022, US males aged >40 years with localized or advanced prostate cancer completed a cross-sectional survey, including a discrete choice experiment (DCE), to assess preferences for ADT attributes. In each DCE task, participants were asked to choose between two hypothetical ADT treatment profiles defined by administration mode, testosterone surge after initiation, cardiovascular risk, impact on sexual interest, time to testosterone recovery after discontinuation, and out-of-pocket cost. Hierarchical Bayesian models generated preference weights, which were used to estimate attribute relative importance (RI). RIs were compared by five subgroups (cancer stage, race/ethnicity, cardiovascular comorbidities, age, and ADT experience) with two-sample t-tests.
Results:
A total of 304 participants in the US were included in analyses (median age: 65.0 years). Holding out-of-pocket cost constant, mode of administration, and impact on sexual interest were most important, followed by risk of cardiovascular events. Across all subgroups, on average respondents preferred a once-daily ADT pill over less frequent intramuscular or subcutaneous injections. This preference was significantly stronger among respondents with advanced prostate cancer, those with cardiovascular comorbidities, and among racial/ethnic minorities. Treatment preferences did not differ between ADT-experienced and ADT-naïve respondents.
Conclusion:
On average, patients preferred to treat prostate cancer by taking a once-daily ADT pill at home rather than receiving less frequent injections. Shared decision-making between healthcare providers and patients, including discussing the benefits, risks, and administration burden of available ADT options, should be encouraged to ensure that patients receive the prostate cancer treatment that is best suited for their care and needs.
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