• Somayeh Arabzadeh, Niusha Ameli, Atefeh Zeinoddini, Farzin Rezaei, Mehdi Farokhnia, Payam Mohammadinejad, Ali Ghaleiha, and Shahin Akhondzadeh.
• Psychiatric Research Center, Roozbeh Hospital, Tehran University of Medical Sciences, Tehran, Iran.
• Bipolar Disord. 2015 Sep 1; 17 (6): 606-14.

ObjectivesRecent research has focused on the inflammatory cascade as a key culprit in the etiology of bipolar disorder. We hypothesized that celecoxib, via its anti-inflammatory properties, may have a therapeutic role in mood disorder.MethodsForty-six inpatients with the diagnosis of acute bipolar mania without psychotic features participated in a parallel, randomized, double-blind, placebo-controlled trial, and underwent six weeks of treatment with either celecoxib (400 mg daily) or placebo as an adjunctive treatment to sodium valproate. Patients were evaluated using the Young Mania Rating Scale (YMRS) and Hamilton Depression Rating Scale (HDRS). The primary outcome measure with respect to efficacy was the mean decrease in YMRS score from baseline to the study endpoint, which was compared between the two groups.ResultsA significant difference was observed in the change in YMRS scores on Day 42 compared to baseline in the two groups (p < 0.001). The changes at the endpoint compared to baseline were -29.78 ± 21.78 (mean ± standard deviation) and -21.78 ± 7.16 for the celecoxib and placebo groups, respectively. A significantly higher remission rate was observed in the celecoxib group (87.0%) than the placebo group (43.5%) at Week 6 (p = 0.005). General linear model repeated measures demonstrated a significant effect for the time × treatment interaction on the YMRS scores [F(2.27,99.98) = 6.67, p = 0.001].ConclusionsCelecoxib is an effective adjuvant therapy in the treatment of manic episodes (without psychotic features) of bipolar mood disorder. The mood-stabilizing role of the drug might be mediated via its action on the inflammatory cascade.© 2015 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

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