EFFECT OF TOPIRAMATE AUGMENTATION IN CHRONIC SCHIZOPHRENIA: A PLACEBO-CONTROLLED TRIAL

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BEHDANI FATEMEH; HEBRANI PARIA; REZAEI ARDANI AMIR; RAFEE ESMAEEL

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Journal: ARCHIVES OF IRANIAN MEDICINE Year:2011 | Volume:14 | Issue:4 Page(s): 270-275

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Title

EFFECT OF TOPIRAMATE AUGMENTATION IN CHRONIC SCHIZOPHRENIA: A PLACEBO-CONTROLLED TRIAL

Author(s)

BEHDANI FATEMEH | HEBRANI PARIA | REZAEI ARDANI AMIR | RAFEE ESMAEEL | Issue Writer Certificate

Keywords

CHRONIC SCHIZOPHRENIA

PLACEBO-CONTROLLED TRIAL

TOPIRAMATE

Abstract

Background: The limitations of antipsychotics for treatment of schizophrenia have led to investigation of the usefulness of pharmacological augmentation strategies. Clinical studies have provided evidence for glutamate abnormalities in schizophrenia. TOPIRAMATE is an anticonvulsant drug with alpha-amino-3-hydroxy-5-methylisoxazole-4-propionic acid receptor antagonist properties; therefore, the objective of the present study was to explore the therapeutic efficacy of TOPIRAMATE as an adjunctive medication in schizophrenia.Methods: A 17 week, double-blind, placebo-controlled clinical trial was performed on 80 patients (25 – 65 years) from 2005 – 2007. All were hospitalized in Mashhad psychiatric hospitals with chronic DSM-IV-TR-diagnosed schizophrenia. All participants received up to 300 mg/day of clozapine. In addition, participants randomly received either TOPIRAMATE (200 – 300 mg/day) or placebo gradually added to their ongoing treatment. Efficacy of medication was measured by administering Positive and Negative Syndrome Scale at baseline and weeks 4, 8, 12, and 17.Results: During the study, 5 patients from the placebo group and 12 participants from TOPIRAMATE group were excluded. Clozapine and TOPIRAMATE group showed significant decreases in all three subscales of PANSS values from baseline, with the maximum efficacy in week 12. However, after tapering TOPIRAMATE, the general psychopathology sign was the only subscale that showed a significant difference. The clozapine and placebo group showed a significant decrease in all three subscales of PANSS values compared to baseline. The significant efficacy for all subscales was obtained at the end point. No significant differences in PANSS scores from baseline to end point were noted between case and control groups.Conclusion: Augmentation of clozapine and TOPIRAMATE did not significantly decline patterns in any of the three subscales of PANSS compared to the clozapine and placebo group. Irct ID: IRCT138904014236N1.

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APA: Copy

BEHDANI, FATEMEH, HEBRANI, PARIA, REZAEI ARDANI, AMIR, & RAFEE, ESMAEEL. (2011). EFFECT OF TOPIRAMATE AUGMENTATION IN CHRONIC SCHIZOPHRENIA: A PLACEBO-CONTROLLED TRIAL. ARCHIVES OF IRANIAN MEDICINE, 14(4), 270-275. SID. https://sid.ir/paper/280663/en

Vancouver: Copy

BEHDANI FATEMEH, HEBRANI PARIA, REZAEI ARDANI AMIR, RAFEE ESMAEEL. EFFECT OF TOPIRAMATE AUGMENTATION IN CHRONIC SCHIZOPHRENIA: A PLACEBO-CONTROLLED TRIAL. ARCHIVES OF IRANIAN MEDICINE[Internet]. 2011;14(4):270-275. Available from: https://sid.ir/paper/280663/en

IEEE: Copy

FATEMEH BEHDANI, PARIA HEBRANI, AMIR REZAEI ARDANI, and ESMAEEL RAFEE, “EFFECT OF TOPIRAMATE AUGMENTATION IN CHRONIC SCHIZOPHRENIA: A PLACEBO-CONTROLLED TRIAL,” ARCHIVES OF IRANIAN MEDICINE, vol. 14, no. 4, pp. 270–275, 2011, [Online]. Available: https://sid.ir/paper/280663/en

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