IRCT20200126046273N1 IRCT 2020-05-02 Hamedan University of Medical Sciences The efficacy of cognitive behavioral therapy with and without Sertraline in patients with obsessive compulsive disorder The efficacy of cognitive behavioral therapy with and without Sertraline in patients with obsessive compulsive disorder 2019-09-23 anticipated 40 Complete https://irct.ir/trial/45794 interventional Randomization: Not randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment. 2 obsessive compulsive disorder. Intervention 1: Intervention group 1 is cognitive behavior therapy. Cognitive behavioral sessions are once a week for a while of one hour in Sina Hospital in Hamedan City. the duration of the study is twelve weeks. During the study patients will be assessed by yale Brown scale three times in the baseline, the mid treatment and after treatment. Intervention 2: Intervention group 2 is cognitive behavioral therapy plus sertraline. Cognitive behavioral therapy in this group is exactly the same as intervention group 1.In addition Sertraline will be administrated by 25 mg daily and according to each patients need gradually get to 200 mg daily in the first 4 weeks. the duration of the study is twelve weeks.During the study patients will be assessed by yale Brown scale three times in the baseline, the mid treatment and after treatment. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is there is not more information