LAMOTRIGINE AUGMENTATION VERSUS PLACEBO IN SEROTONIN REUPTAKE INHIBITORS- RESISTANT OBSESSIVE-COMPULSIVE DISORDER: A RANDOMIZED CONTROLLED TRIAL

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KHALKHALI MOHAMMADRASOUL; ARAM SETAREH; ZARRABI HOMA; KAFIE MOOSA; HEYDARZADEH ABTIN

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Journal: Iranian Journal of Psychiatry Year:2016 | Volume:11 | Issue:2 Page(s): 104-114

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Title

LAMOTRIGINE AUGMENTATION VERSUS PLACEBO IN SEROTONIN REUPTAKE INHIBITORS- RESISTANT OBSESSIVE-COMPULSIVE DISORDER: A RANDOMIZED CONTROLLED TRIAL

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Keywords

DRUG AUGMENTATION

LAMOTRIGINE

OBSESSIVE-COMPULSIVE DISORDER

SEROTONIN REUPTAKE INHIBITORS

TREATMENT-RESISTANT

Abstract

Objective: SEROTONIN REUPTAKE INHIBITORS are frequently used in first-line treatments for patients with OBSESSIVE-COMPULSIVE DISORDER. Nevertheless, many of these patients do not respond well to initial therapy. The hypothesis of glutamatergic dysfunction in specific brain regions has been proposed in the pathophysiology of OBSESSIVE-COMPULSIVE DISORDER. This study was designed to evaluate the possible efficacy of LAMOTRIGINE, a glutamatergic agent in SEROTONIN REUPTAKE INHIBITORS-resistant patients with obsessive- compulsive disorder.Method: This study was a 12-week, double blind, randomized, placebo-controlled trial of adjunctive fixed-doses of LAMOTRIGINE (100 mg) to SEROTONIN REUPTAKE INHIBITORS therapy in OBSESSIVE-COMPULSIVE DISORDER. Eligible subjects who had a total Y-BOCS of 21 or above were randomly assigned to receive adjunctive treatment with either LAMOTRIGINE (n=26), or placebo (n=27). Response to LAMOTRIGINE was defined as clinical improvement (>25% decrease in the total Y-BOCS score), which was administered at weeks 0, 8 and 12.Results: At the endpoint (week 12), significant differences were observed in obsession, compulsion, and total Y-BOCS scores comparing LAMOTRIGINE to placebo (P=0.01, 0.005 and 0.007 respectively). The mean reduction in obsession, compulsion and total scores in LAMOTRIGINE group was about 4.15, 4.50 and 8.73, respectively. Similarly, the mean reductions in the placebo group were 2.52, 2.56 and 5.07. Effect sizes for efficacy measures were calculated by Cohen’s d, and it was calculated as 0.54 for the total YBOCS.Conclusion: Our findings provide evidence that this augmentation is well tolerated and may be an effective strategy for patients with refractory OBSESSIVE-COMPULSIVE DISORDER.

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APA: Copy

KHALKHALI, MOHAMMADRASOUL, ARAM, SETAREH, ZARRABI, HOMA, KAFIE, MOOSA, & HEYDARZADEH, ABTIN. (2016). LAMOTRIGINE AUGMENTATION VERSUS PLACEBO IN SEROTONIN REUPTAKE INHIBITORS- RESISTANT OBSESSIVE-COMPULSIVE DISORDER: A RANDOMIZED CONTROLLED TRIAL. IRANIAN JOURNAL OF PSYCHIATRY, 11(2), 104-114. SID. https://sid.ir/paper/302397/en

Vancouver: Copy

KHALKHALI MOHAMMADRASOUL, ARAM SETAREH, ZARRABI HOMA, KAFIE MOOSA, HEYDARZADEH ABTIN. LAMOTRIGINE AUGMENTATION VERSUS PLACEBO IN SEROTONIN REUPTAKE INHIBITORS- RESISTANT OBSESSIVE-COMPULSIVE DISORDER: A RANDOMIZED CONTROLLED TRIAL. IRANIAN JOURNAL OF PSYCHIATRY[Internet]. 2016;11(2):104-114. Available from: https://sid.ir/paper/302397/en

IEEE: Copy

MOHAMMADRASOUL KHALKHALI, SETAREH ARAM, HOMA ZARRABI, MOOSA KAFIE, and ABTIN HEYDARZADEH, “LAMOTRIGINE AUGMENTATION VERSUS PLACEBO IN SEROTONIN REUPTAKE INHIBITORS- RESISTANT OBSESSIVE-COMPULSIVE DISORDER: A RANDOMIZED CONTROLLED TRIAL,” IRANIAN JOURNAL OF PSYCHIATRY, vol. 11, no. 2, pp. 104–114, 2016, [Online]. Available: https://sid.ir/paper/302397/en

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