Journal
SCHIZOPHRENIA BULLETIN
Volume 40, Issue 6, Pages 1385-1403Publisher
OXFORD UNIV PRESS
DOI: 10.1093/schbul/sbu030
Keywords
antipsychotic; meta-analysis; metabolic; concomitant; PRISMA; schizophrenia
Categories
Funding
- Astellas
- Dainippon Sumitomo Pharma
- Eli Lilly
- Elsevier Japan
- Meiji Seika Pharma
- Novartis Pharma
- Otsuka Pharmaceutical
- Wiley Japan
- Meiji Seika
- Asahi Kasei Pharma
- Astellas, DaiichiSankyo
- Eisai
- GlaxoSmithKline
- Janssen Pharmaceutical
- Mochida Pharmaceutical
- MSD
- Pfizer
- Shionogi
- Takeda
- Mitsubishi Tanabe Pharma
- Yoshitomiyakuhin
- ReckittBenckiser
- Abbvie
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Background: Antipsychotic-induced metabolic adversities are often difficult to manage. Using concomitant medications to counteract these adversities may be a rational option. Objective: To systematically determine the effectiveness of medications to counteract antipsychotic-induced metabolic adversities in patients with schizophrenia. Data Sources: Published articles until November 2013 were searched using 5 electronic databases. Clinical trial registries were searched for unpublished trials. Study Selection: Double-blind randomized placebo-controlled trials focusing on patients with schizophrenia were included if they evaluated the effects of concomitant medications on antipsychotic-induced metabolic adversities as a primary outcome. Data Extraction: Variables relating to participants, interventions, comparisons, outcomes, and study design were extracted. The primary outcome was change in body weight. Secondary outcomes included clinically relevant weight change, fasting glucose, hemoglobin A1c, fasting insulin, insulin resistance, cholesterol, and triglycerides. Data Synthesis: Forty trials representing 19 unique interventions were included in this meta-analysis. Metformin was the most extensively studied drug in regard to body weight, the mean difference amounting to -3.17 kg (95% CI: -4.44 to -1.90 kg) compared to placebo. Pooled effects for topiramate, sibutramine, aripiprazole, and reboxetine were also different from placebo. Furthermore, metformin and rosiglitazone improved insulin resistance, while aripiprazole, metformin, and sibutramine decreased blood lipids. Conclusion: When nonpharmacological strategies alone are insufficient, and switching antipsychotics to relatively weight-neutral agents is not feasible, the literature supports the use of concomitant metformin as first choice among pharmacological interventions to counteract antipsychotic-induced weight gain and other metabolic adversities in schizophrenia.
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