The 340B Program and High-Risk Prescribing of Oral Targeted Therapies for Advanced Prostate Cancer.

Faraj KS, Oerline M, Kaufman SR, Dall C, Srivastava A, Caram MEV, Shahinian VB, Hollenbeck BK. The 340B Program and High-Risk Prescribing of Oral Targeted Therapies for Advanced Prostate Cancer. Urology practice. 2024 Nov 1; 11(6):931-938.

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Abstract:

INTRODUCTION: The use of expensive oral targeted agents for advanced prostate cancer can be influenced by those who stand to gain from their use. The 340B drug pricing program allows eligible hospitals to purchase medications at steep discounts, generating millions of dollars in savings. The extent to which hospitals engage in higher-risk prescribing due to program incentives is unclear. METHODS: Medicare claims were used to perform a retrospective study of men with advanced prostate cancer. The primary outcome was targeted therapy use in men with high noncancer mortality risk. Secondary outcomes included androgen biosynthesis inhibitor use in men with cardiovascular history, androgen receptor inhibitor use in men with neurocognitive history, and therapy within 14 days of death. Proportional hazards models were used to assess time-to-event outcomes, while logistic regression was used for binary outcomes. RESULTS: In men with high noncancer mortality risk, targeted therapy use did not differ at 340B participating compared to nonparticipating hospitals (hazard ratio [HR] 1.1, 95% CI 0.67-1.5). There was no difference in androgen biosynthesis inhibitor use in men with a prior cardiac event (HR 0.96, 95% CI 0.70-1.3) or androgen receptor inhibitor use in men with a prior neurocognitive event (HR 1.5, 95% CI 0.65-3.4) in those treated at 340B participating compared to nonparticipating hospitals. Therapy use in the last 14 days of life did not vary by 340B participation (odds ratio 1.3, 95% CI 0.86-1.9). CONCLUSIONS: In men with advanced prostate cancer, high-risk prescribing and futility measures did not vary by participation in the 340B drug pricing program.