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Impact of patient programs on adherence and persistence in inflammatory and immunologic diseases: a meta-analysis

Authors Burudpakdee C, Khan ZM, Gala S, Nanavaty M, Kaura S

Received 5 November 2014

Accepted for publication 23 December 2014

Published 11 March 2015 Volume 2015:9 Pages 435—448

DOI https://doi.org/10.2147/PPA.S77053

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Dr Johnny Chen

Chakkarin Burudpakdee,1,2 Zeba M Khan,3 Smeet Gala,1 Merena Nanavaty,1 Satyin Kaura3

1Market Access Solutions, LLC, Raritan, NJ, USA; 2University of North Carolina at Charlotte, Charlotte, NC, USA; 3Celgene Corporation, Summit, NJ, USA

Objectives: Patient adherence and persistence is important to improve outcomes in chronic conditions, including inflammatory and immunologic (I&I) diseases. Patient programs that aim at improving medication adherence or persistence play an essential role in optimizing care. This meta-analysis assessed the effectiveness of patient programs in the therapeutic area of I&I diseases.
Methods: A global systematic literature review was conducted with inclusion criteria of: patient programs in I&I diseases; published in English language between January 2008 and September 2013; and reporting measures of adherence or persistence, including medication possession ratio >80% and persistence rate. A meta-analysis was performed using a random effects model. Subgroup analyses based on the type of program was performed whenever feasible.
Results: Of 67 studies reviewed for eligibility, a total of 17 studies qualified for inclusion in the meta-analysis. Overall, patient programs increased adherence (odds ratio [OR]=2.48, 95% confidence interval [CI]=1.68–3.64, P<0.00001) as compared with standard of care. Combination patient programs that used both informational and behavioral strategies were superior in improving adherence (OR=3.68, 95% CI=2.20–6.16, P<0.00001) compared with programs that used only informational (OR=2.16, 95% CI=1.36–3.44, P=0.001) or only behavioral approaches (OR=1.85, 95% CI=1.00–3.45, P=0.05). Additionally, patients were more likely to be persistent (OR=2.26, 95% CI=1.16–4.39, P=0.02) in the intervention group as compared with the control group. Persistence (in days) was significantly (P=0.007) longer, by 42 additional days, in the intervention group than in the control group.
Conclusions: Patient programs can significantly improve adherence as well as persistence in the therapeutic area of I&I diseases. Programs employing a multimodal approach are more effective in improving adherence than programs with informational or behavioral strategies alone. This in turn may improve patient outcomes.

Keywords: systematic literature review, informational, behavioral, patient interventions

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