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Pregabalin is a commonly used therapy cur-rently recommended as first-line treatment for a number of neuropathic pain (NeP) conditions. Since licensure, a number of clinical trials of pregabalin in different NeP conditions have been completed from which additional data on safety and tolerability can be drawn. In this analysis, patient-level data from 31 randomized clinical trials of pregabalin in peripheral NeP sponsored by Pfizer were pooled and assessed for incidence of adverse events (AEs). Incidence by age, disease condition, and race, together with risk differences and time to onset and resolution of AEs, was assessed. In total, 7,510 patients were included: 4,884 on pregabalin (representing 805 patient-years treatment) and 2,626 on placebo. Pregabalin vs.placebo risk analysis identified 9 AEs with a risk difference, for which the lower limit of the 95% confidence interval (CI) was>1%: dizziness (risk difference [95% CI]: (17.0 [15.4 to 18.6]),somnolence (10.8 [9.5 to 12.1]), peripheral edema (5.4 [4.3 to 6.4]), weight increase (4.7 [3.9 to 5.5]), dry mouth (2.9 [2.1 to 3.8]), constipation (2.3 [1.5 to 3.2]), blurred vision (2.2 [1.6 to 2.9]), balance disorder (2.0 [1.5 to 2.5]), and euphoric mood(1.6 [1.2 to 2.0]). The most common AEs, dizziness and somnolence, typically emerged within the first 1 to 2 weeks of treatment and resolved 1 to 2 weeks later, without resulting in cessation of treatment. The data from this review provide information, indicating which AEs may be expected in patients treated with pregabalin, and suggest that careful dose titration to the highest tolerable dose is the most appropriate approach in clinical practice.

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Objectives: To compare adherence and direct medical costs with therapeutic and subtherapeutic doses of pregabalin for the treatment of fi bromyalgia (FM), post-herpetic neuralgia (PHN), and painful diabetic peripheral neuropathy (pDPN).

Study Design: Retrospective database analysis.Methods: Adult patients (>18 years old) newly given pregabalin for FM, PHN, or pDPN between October 1,2007, and October 1, 2008, were identifi ed using the MarketScan Database. Therapeu-tic and subtherapeutic doses were based on the FDA-approved label. Outcomes, including proportion of days covered [PDC], persistence, and direct medical costs, were compared between dose categories using χ2 tests, t tests, and multivariable analyses adjusting for clinical and demographic variables.

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PP-LYR-SWE-0207 Dec-2020