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Orlistat for the Treatment of Antipsychotic-induced Weight Gain: an Eight-week Multicenter, Randomized, Placebo-controlled, Double-blind Trial

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Publisher Biomed Central
Date 2024 Jul 25
PMID 39049073
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Abstract

Background: Weight gain and metabolic disorders are commonly induced by antipsychotics. Orlistat is a lipase inhibitor used for weight control. The effect of orlistat on weight gain and metabolic disturbances in people (especially women) treated with antipsychotics has not been sufficiently studied. This study aimed to investigate the efficacy of orlistat in mitigating antipsychotic-induced weight gain and abnormal glycolipid metabolism.

Methods: Patients with schizophrenia or bipolar disorder with a weight gain ≥ 7% after taking antipsychotics were recruited. Participants were randomly allocated to two groups: one received eight weeks of orlistat (360 mg/day) and the other received a placebo. Anthropometric and fasting serum biochemical parameters were measured at baseline, week 4 and week 8.

Results: Sixty individuals (orlistat:placebo = 32:28) participated in the study. After controlling for the study center, the eight-week changes in body mass index (BMI), cholesterol (CHOL), high-density lipoprotein cholesterol (HDL-CH) and low-density lipoprotein cholesterol (LDL-CH) were significantly different between the groups. According to the mixed linear models, CHOL and LDL-CH were significantly lower in the orlistat group than in the control group at week 8. The week 0-to-8 slopes of BMI, CHOL and LDL-CH were also significantly lower in the orlistat group.

Conclusions: These findings suggested that orlistat is an effective intervention for attenuating weight gain and serum lipid disturbances in antipsychotic-treated patients.

Trial Registration: ClinicalTrials.gov NCT03451734.

References
1.
Ingimarsson O, MacCabe J, Haraldsson M, Jonsdottir H, Sigurdsson E . Risk of diabetes and dyslipidemia during clozapine and other antipsychotic drug treatment of schizophrenia in Iceland. Nord J Psychiatry. 2017; 71(7):496-502. DOI: 10.1080/08039488.2017.1334821. View

2.
Kopelman P, Groot G, Rissanen A, Rossner S, Toubro S, Palmer R . Weight loss, HbA1c reduction, and tolerability of cetilistat in a randomized, placebo-controlled phase 2 trial in obese diabetics: comparison with orlistat (Xenical). Obesity (Silver Spring). 2009; 18(1):108-15. DOI: 10.1038/oby.2009.155. View

3.
Miyakoshi T, Ishikawa S, Okubo R, Hashimoto N, Sato N, Kusumi I . Risk factors for abnormal glucose metabolism during antipsychotic treatment: A prospective cohort study. J Psychiatr Res. 2023; 168:149-156. DOI: 10.1016/j.jpsychires.2023.10.055. View

4.
Kim K, Suh H, Hwang I, Ko K . Influence of eating behaviors on short-term weight loss by orlistat and anorectic agent. Eat Behav. 2014; 15(1):87-90. DOI: 10.1016/j.eatbeh.2013.10.019. View

5.
Lemstra M, Bird Y, Nwankwo C, Rogers M, Moraros J . Weight loss intervention adherence and factors promoting adherence: a meta-analysis. Patient Prefer Adherence. 2016; 10:1547-59. PMC: 4990387. DOI: 10.2147/PPA.S103649. View