Opioid treatment patterns following prescription of immediate-release hydrocodone

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Abstract

BACKGROUND: Immediate-release (IR) hydrocodone is the most widely prescribed opioid in the United States; however, little is known about the utilization patterns and duration of opioid use among patients prescribed IR hydrocodone. A better understanding of the use of IR hydrocodone would result in more appropriate prescribing patterns of extended-release opioids. OBJECTIVE: To assess downstream length of opioid therapy and utilization patterns of extended-release/long-acting (ER/LA) opioids among patients on IR hydrocodone to provide a better understanding of how IR and ER/LA opioids are used to manage pain. METHODS: Retrospective analysis using health care claims from the Truven MarketScan Commercial, Medicare Supplemental, and Medicaid databases was performed. Patients prescribed IR hydrocodone during the 6-month baseline period (July 2011-December 2011) and with continuous enrollment for a 12-month follow-up period (2012) post-index date (January 1, 2012) were selected. Downstream length of therapy, defined as number of days supplied with opioids, and downstream use of ER/LA opioids during followup were examined by average pills per month (= 60 vs. > 60 pills per month) and days supply (< 60 vs. = 60 days supply) of IR hydrocodone during base-line to mimic intermittent and consistent IR users. RESULTS: At baseline, 1,743,933 commercial, 277,096 Medicare, and 157,922 Medicaid IR hydrocodone patients were identified. During followup, 1.7[%], 2.9[%], and 2.8[%] of patients initiated (i.e., converted to or newly started) ER/LA opioids for commercial, Medicare, and Medicaid groups, respectively. Approximately 90[%] of patients were prescribed IR hydrocodone for less than 2 months in the following year, while 10[%] were high utilizers, averaging nearly 8 months of prescribed opioid use during followup. Downstream initiation of ER/LA opioids was significantly higher among commercial patients prescribed IR hydrocodone for > 60 pills per month than with = 60 pills per month (7.8[%] vs. 1.2[%], respectively, P < 0.05) at baseline. For commercial patients initiating ER/LA opioids, length of ER/LA therapy during follow-up was significantly longer among patients with baseline IR hydrocodone > 60 pills per month than with = 60 pills per month. All results were consistent when examined by levels of days supply. CONCLUSIONS: A majority of the population prescribed IR hydrocodone was not prescribed opioid therapy beyond 2 months on average in the 1-year follow-up period. Only a small subset of patients with increased pills per month or days supply of IR hydrocodone in the baseline period continued to be high utilizers in the following year, averaging nearly 8 months of prescribed opioid use. A limited proportion of patients prescribed IR hydrocodone converted to ER/LA opioids. This knowledge can assist policymakers and physicians, providing an opportunity to identify small subsets of patients to improve ER/LA opioid prescribing.

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APA

Ben-Joseph, R., Bell, J. A., Brixner, D., Kansal, A., Paramore, C., Chitnis, A., … Burgoyne, D. S. (2016). Opioid treatment patterns following prescription of immediate-release hydrocodone. Journal of Managed Care and Specialty Pharmacy, 22(4), 358–366. https://doi.org/10.18553/jmcp.2016.22.4.358

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