Author:
Jimeno Natalia,Velasco-Gonzalez Veronica,Fierro Inmaculada,Duran Mercedes,Carvajal Alfonso
Abstract
AbstractWeight gain is a frequent and severe adverse reaction in patients taking antipsychotics. The objective was to further investigate in a natural setting influential risk factors associated with clinically significant weight gain. An observational follow-up study was conducted. Patients when initiating treatment with whatever antipsychotic were included; a structured questionnaire was applied at baseline, 3 and 6 months later; a blood sample was obtained. In a nested case–control approach, patients with an increase ≥ 7% of their initial weight were considered as cases, the remaining, as controls. The results showed that, out of 185 patients, 137 completed the 6-month follow-up (cases, 38; controls, 99). Weight gain gradually and significantly increased in cases (baseline, 65.0 kg; 6 months, 74.0 kg) but not in controls (65.6 kg and 65.8 kg, respectively). Age (adjusted OR = 0.97, 95% CI = 0.96–0.99, p = 0.004), olanzapine (adjusted OR = 2.98, 95% CI = 1.13–7.80, p = 0.027) and quetiapine (adjusted OR = 0.25, 95% = 0.07–0.92, p = 0.037) significantly associated with weight gain. An association was also found for the CNR1 (rs1049353) and INSIG2 (rs7566605) polymorphisms. In conclusion, an increased risk of antipsychotics-induced weight gain was observed for younger age and olanzapine, and a relative lower risk for quetiapine. A potential role of CNR1 rs1049353 and INSIG2 rs7566605 polymorphisms is suggested.
Funder
Ministry of Education of the Regional Government of Castile and Leon
Ministry of Health of the Regional Government of Castile and Leon
Spanish Ministry of Health
Publisher
Springer Science and Business Media LLC
Cited by
1 articles.
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