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Year : 2018  |  Volume : 27  |  Issue : 1  |  Page : 53-60

Efficacy of inhibitory learning theory-based exposure and response prevention and selective serotonin reuptake inhibitor in obsessive-compulsive disorder management: A treatment comparison

1 Department of Clinical Psychology, Mental Health Institute (Centre of Excellence), SCB Medical College and Hospital, Cuttack, Odisha, India
2 Department of Psychiatry, Dr. D. Y. Patil Medical College, Dr. D. Y. Patil Vidyapeeth, Pune, Maharashtra, India
3 Pt. Jawaharlal Nehru Memorial Medical College, Raipur, Chhattisgarh, India

Correspondence Address:
Dr. Suprakash Chaudhury
Department of Psychiatry, Dr. D. Y. Patil Medical College, Dr. D. Y. Patil Vidyapeeth, Pimpri, Pune - 411 018, Maharashtra
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ipj.ipj_35_18

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Background: The majority of treatment research on obsessive-compulsive disorder (OCD) has focused on emotional processing theory (EPT)-based exposure-based interventions. Despite the outcomes of EPT-based exposure and response prevention (ERP), a sizeable percentage of patients do not respond whereas 50%–60% of those who respond experience at least partial relapse at follow-up assessments. Inhibitory learning theory (ILT) provides a novel foundation for understanding how exposure therapy can be maximized to overcome such deficits but has not been adequately studied and compared to other evidence-based management in OCD. Aim: The aim of this study was to compare ILT-based ERP plus selective serotonin reuptake inhibitor (SSRI) with only SSRI treatment in OCD patients. Materials and Methods: The present study is pretest/posttest control group design with single masking, where participants (n = 32) diagnosed with OCD were randomly assigned into two treatment groups, namely ILT-based ERP plus SSRI and SSRI alone. Yale-Brown obsessive-compulsive scale was primary outcome measure. Intervention was done for 3 months. Thereafter, the participants were followed up for 6 months. Results: ILT-based ERP and SSRI are both effective treatments. There was no significant difference in treatment effects between combined treatments of SSRI plus ILT-based ERP and SSRI alone in immediate post assessment. However, combined treatment of SSRI plus ILT-based ERP had significantly better treatment effects on follow-ups than SSRI alone. Conclusions: SSRI combined with ILT-based strategies to maximize ERP is significantly better than SSRI alone in the treatment of OCD.

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