Publications by authors named "Pragya Kakani"

Medicare Part D does not allow plans to exclude drugs in six protected classes from their formularies, which may limit plans' ability to negotiate rebates and lead to higher spending. We estimated the association between protected-class status, US-level estimated rebates, and formulary coverage during the period 2011-19. We found that protected classes indeed had significantly lower exclusion rates in Medicare Part D during this period relative to nonprotected classes, and this difference was larger than the corresponding difference in commercial plans.

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Importance: Increasing integration across medical services may have important implications for health care quality and spending. One major but poorly understood dimension of integration is between physician organizations and pharmacies for self-administered drugs or in-house pharmacies.

Objective: To describe trends in the use of in-house pharmacies, associated physician organization characteristics, and associated drug prices.

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The Inflation Reduction Act (IRA) requires Medicare to negotiate lower prices for some medicines with high Medicare spending. Using historical data from public and proprietary sources to apply the IRA's negotiation criteria retrospectively, we identify all drugs that met the eligibility criteria from 2012 to 2021 to classify drugs that would have had a negotiated price in effect in 2022 and to calculate associated decreases in industry revenues. Our results suggest that the IRA's reduction in overall industry revenue will be modest, will not affect most top-selling drugs and will not likely result in large-scale defunding of research and development.

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Context: To what extent does pharmaceutical revenue growth depend on new medicines versus increasing prices for existing medicines? Moreover, does using list prices, as is commonly done, instead of prices net of confidential rebates offered by manufacturers, which are harder to observe, change the relative importance of the sources of revenue growth?

Methods: This study uses data from SSR Health LLC to address these research questions using decomposition methods that analyze list prices, prices net of rebates, and sales for branded pharmaceutical products sold primarily through retail pharmacies.

Findings: From 2009 to 2019, retail pharmaceutical revenue growth was primarily driven by new products rather than by price increases on existing products. Failing to account for confidential rebates creates a more prominent role for price increases in explaining revenue growth, because list price inflation during this period was 10.

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Purpose: Guidelines on mammographic surveillance after breast cancer treatment have been disseminated internationally and incorporated into Choosing Wisely recommendations to reduce low-value care. However, adherence within different countries before their publication is unknown.

Methods And Materials: Low-value mammography, defined as "short-interval" (within 6 months of radiation) or "high-frequency" (>1 within 12 months of radiation), was compared in Medicare fee-for-service in the United States and Ontario, Canada.

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Accessing primary care is often difficult for newly insured Medicaid beneficiaries. Tailored text messages may help patients navigate the health system and initiate care with a primary care physician. We conducted a randomized controlled trial of tailored text messages with newly enrolled Medicaid managed care beneficiaries.

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This study describes correlations between the dollar amount of relief funding authorized by the US Congress to fund prevention, diagnosis, and treatment of coronavirus disease 2019 (COVID-19) and to reimburse health care entities for lost revenues, and county-level Black population fraction accounting for county COVID-19 burden, comorbidity, and hospital financial health.

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Background: Prostate cancer is the most common male cancer, with a wide range of treatment options. Payment reform to reduce unnecessary spending variation is an important strategy for reducing waste, but its magnitude and drivers within prostate cancer are unknown.

Methods: In total, 38,971 men aged ≥66 years with localized prostate cancer who were enrolled in Medicare fee-for-service and were included in the Surveillance, Epidemiology, and End Results-Medicare database from 2009 to 2014 were included.

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The extent of price variation across a local market has important implications for value-based purchasing. Using a new data set containing health care prices for nearly every insurer-provider-service triad across a large local market, we comprehensively examined variation in fee-for-service paid commercial prices in Massachusetts for 291 predominantly outpatient medical services. Prices varied considerably across hospital service areas.

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Objective: To estimate and describe factors driving variation in spending for breast cancer patients within geographic region.

Data Source: Surveillance, Epidemiology, and End Results (SEER)-Medicare database from 2009-2013.

Study Design: The proportion of variation in monthly medical spending within geographic region attributed to patient and physician factors was estimated using multilevel regression models with individual patient and physician random effects.

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Deficits in cognitive control are a hallmark characteristic of depression, however less is known about the degree to which they persist beyond symptom remission and might contribute to symptom recurrence in remitted individuals (rMDD). Evidence indicates that stress interferes with cognitive control, highlighting a potential mechanism by which stress precipitates depression relapse. Therefore, this study examined whether stress exposure elicits deficits in error monitoring - a component of cognitive control thought to be particularly implicated in the ability to adaptively respond to negative feedback - in individuals with rMDD.

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Background: Major depressive disorder (MDD) is a highly recurrent condition, and improving our understanding of the abnormalities that persist in remitted MDD (rMDD) may provide insight into mechanisms that contribute to relapse. MDD has been characterized by reward learning deficits linked to dysfunction in frontostriatal regions. Although initial behavioral evidence of reward learning deficits in rMDD has recently emerged, it is unclear whether these reflect impairments in neural reward processing that persist into remission.

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