Abstract
11013 Background: Clinical trial access particularly for older adults aged 65 years and above with cancer is impacted by multilevel barriers, including cost concerns to payers in the usual models of cancer care delivery. Alternative models recently studied include the Centers for Medicare and Medicaid Innovation’s Oncology Care Model (OCM), a value-based care pilot to enhance quality & reduce costs. Here, we investigated the association between clinical trial participation (CTP) and the total cost of care (TCOC) within this non-traditional model. Methods: We identified prospective longitudinal observational cohort of patients cared for in 11 states within 323 clinics in 14 multi-site community practices participating in OCM, in The US Oncology Network and extracted data (episode claims, medical records, episodes) from OCM performance periods (PP) 3-11 between 7/1/17 and 6/30/22. Propensity score matching by PP, age, gender, date of death, cancer type identified the analysis cohort of matched episodes, then stratified by trial participation (CTP vs usual care) to compare TCOC and drug expenditures. Results: Over 5 years, 121,717 unique patients (94% of whom were aged 65y+) received 282,604 episodes of cancer care in the community, most common cancers being breast, lung, multiple myeloma. Propensity score matching identified 13,260 matched episodes (6630 usual care, 6630 CTP). The actual expenditure differed by $2,341 per episode between CTP & usual care (CTP $43,890 vs usual care $41,548; p < 0.0001), while trial participation had significant savings against the OCM CTP benchmark ($4816 saved per CTP episode), compared to usual care vs its benchmark ($826 saved per usual care episode, p < 0.0001). Drug costs per episode did not differ between the two groups (CTP $29,516 vs usual care $30,553; p 0.54). Further breakdown shows that drug spending on anticancer agents (CTP $28,008 vs usual care $29,139) and other drugs including supportive care meds (CTP $1,511 vs usual care $1,414) did not differ significantly. Conclusions: Clinical trial participation saw relative cost savings against the benchmark compared to usual care, owing largely to the higher benchmark prices for CTP episodes in OCM’s risk-adjusted price prediction model, rather than an absolute cost savings to payers. Drug expenditures remain the largest contributor to total cost of care in this alternative model. The contributors to both drug expenditures as well as the absence of absolute cost savings between the two cohorts represent key areas for further investigation. CMMI Disclaimer: The statements contained in this document are solely those of the authors and do not necessarily reflect the views or policies of CMS. The authors assume responsibility for the accuracy and completeness of the information contained in this document.
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