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- Wing Chow, Prina Donga, Aurélie Côté-Sergent, Carmine Rossi, Patrick Lefebvre, Marie-Hélène Lafeuille, Bruno Emond, and Hélène Hardy.
- Janssen Scientific Affairs, LLC, Titusville, NJ, USA.
- Curr Med Res Opin. 2020 Aug 1; 36 (8): 1313-1323.
ObjectiveEvidence suggests that integrase strand transfer inhibitors (INSTIs) are associated with greater weight gain than other antiretrovirals. This real-world study compares weight/body mass index (BMI) change between insured US patients with human immunodeficiency virus (HIV-1) initiating a protease inhibitor (PI) or INSTI.MethodsA retrospective longitudinal study was conducted using Decision Resources Group's Real World Data Repository (7/17/2017-6/1/2019). Adult patients with HIV-1 who initiated a new PI or INSTI on or after 7/17/2018 (index date) and had ≥12 months of continuous pre-index clinical activity were included. Baseline characteristics were balanced using inverse probability of treatment weighting. The proportion of patients with ≥5% weight/BMI increases and mean weight/BMI change from pre- to post-index were compared using odds ratios (ORs) and mean differences (MDs).Results20,367 patients (9993 PI, 10,374 INSTI) were included (mean age = 50 years; ∼30% females). Pre- and post-index weight and BMI measurements were available in 429 and 430 PI patients, and 397 and 383 INSTI patients, respectively (mean time between index and post-index measurements: ∼7 months). The PI cohort was 39%/49% less likely to experience ≥5% weight/BMI increase than the INSTI cohort, respectively (OR [≥5% weight gain] = 0.61; p = .014; OR [≥5% BMI gain] = 0.51; p < .001). Mean weight/BMI gain was significantly lower in the PI cohort than the INSTI cohort (weight MD = -1.90 kg [-4.19 lbs], BMI MD = -0.61kg/m2; both p < .001).ConclusionsRelative to INSTI, patients initiating a new PI were less likely to experience ≥5% weight/BMI gain post-index. Additionally, mean weight/BMI gain was lower in the PI than in the INSTI cohort.
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