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Patterns of treatment modifications among newly treated hypertensive patients: does choice of modification strategy affect likelihood of treatment discontinuation?

Abstract：

OBJECTIVES:Treatment modifications--addition, uptitration, switching, and downtitration--are necessary to address issues such as unattained blood pressure goals, adverse drug events, drug cost, or patient dissatisfaction which lead to treatment discontinuation. This study assessed the patterns of treatment modifications, and compared the rates of treatment modification and time-to-treatment modification across five antihypertensive drug classes (ADCs). Additionally, the association between treatment modification strategies and the likelihood of treatment discontinuation was assessed. METHODS:This is a retrospective cohort study using the BlueCross-BlueShield of Texas commercial claims database (2008-2012). Treatment modifications that occurred within 1 year of starting hypertension treatment were identified. Patients who received treatment modifications were followed for 12 months to determine if and when they discontinued treatment. Cox regression models were used to determine the likelihood of treatment modification and treatment discontinuation. RESULTS:About 48.5% of patients received treatment modifications within 1 year of treatment initiation. Rates of treatment modification were significantly different across ADCs; angiotensin-converting enzyme inhibitor and angiotensin receptor blocker users were less likely to receive treatment modifications compared with other ADCs. Mean time-to-treatment modification was more than 100 days for adding and uptitrating, and more than 140 days for switching and downtitrating. Patients intensifying treatment by adding medications were about 25% (vs. uptitration) and 50% (vs. switching) less likely to discontinue treatment. CONCLUSION:Treatment modifications are common among newly treated hypertensive patients, and the rates vary significantly across ADCs. In the real world, treatment modifications occur much later than the 30-day timeline recommended by guidelines. Addition of drugs may be a preferred approach for intensifying treatment of patients at a high risk of treatment discontinuation.

journal_name

J Hypertens

journal_title

Journal of hypertension

authors

Sonawane KB,Qian J,Garza KB,Wright BM,Zeng P,Ganduglia-Cazaban CM,Hansen RA

doi

10.1097/HJH.0000000000000806

subject

Has Abstract

pub_date

2016-03-01 00:00:00

pages

548-57; discussion 557

issue

eissn

0263-6352

issn

1473-5598

pii

00004872-201603000-00024

journal_volume

pub_type

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Patterns of treatment modifications among newly treated hypertensive patients: does choice of modification strategy affect likelihood of treatment discontinuation?