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CompletedNCT02022709Updated Sep 9, 2022

Efficacy of Exposure and Response Prevention(ERP) and SSRIs in Chinese OCD Patients

A Phase 4 interventional study of Fluoxetine and Sertraline in Obsessive-Compulsive Disorder, Anxiety Disorders and Mental Disorders, sponsored by Shanghai Mental Health Center. Completed at 1 site in China. Open to participants aged 16 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-09-09.

Sponsored by Shanghai Mental Health Center · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
78
Allocation
Randomized
Ages
16 Years to 65 Years
Sex
All
01

Study summary

The purpose of this study is to evaluate the efficiency of SSRIs(Selective Serotonin Reuptake Inhibitor) ,ERP(Exposure and Response Prevention) and the combination of the two therapies for OCD(Obsessive-Compulsive Disorder) patients ,at the same time, to find out the biological or psychological predictors of treatment response in Chinese population.

Read the detailed description

Although Selective Serotonin Reuptake Inhibitors(SSRIs) and Cognitive Behavior Therapy (CBT) including Exposure and Response Prevention(ERP) are two kinds of the first line treatments for OCD(Obsessive-Compulsive Disorder) according to APA(American Psychological Association)guideline. Both of the treatments are effective, but few research has been done to find out who are more responsive to one treatment than the other. The aim of our research is to evaluate the efficiency of SSRIs ,ERP and the combination of the two therapies for OCD patients ,at the same time, to find out the biological and psychological predictors of treatment response in Chinese population.

This is a randomized, single-blind, cross-over design study.Approximately 60 patients will be randomized to SSRIs or ERP group. Neuropsychological assessment and fMRI(Functional Magnetic Resonance Imaging) will be performed at baseline,during the treatment and at the end of the study. The research has two period. In the first period(before week 8) ,the patients will have monotherapy. In the second period(after week 8), rates of improvement based on the YBOCS(Yale-Brown Obsessive Compulsive Scale) scores will be assessed. The patient will be considered responsive to treatment when he or she has a reduction in YBOCS score ≥ 35% of the score at the baseline.If the patient is responsive to the treatment that he or she has received at the first 8 weeks,he or she will continue to follow the previous treatment strategy.If not,the patient will have a combination of SSRIs and ERP treatment for another 8 weeks. The follow-up period will last up to 6 months.The result of the study will improve our knowledge about the efficacy of the two first line treatments .Also,it will help us to find out the predictors of the outcome of the two different kinds of treatments.Strategy of clinical treatment of OCD will be more individualized in the future.

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Conditions studied

  • Obsessive-Compulsive Disorder
  • Anxiety Disorders
  • Mental Disorders

Keywords

  • Cognitive Behavior Therapy
  • Exposure and Response/Ritual Prevention
  • Selective Serotonin Reuptake Inhibitors
  • Psychotherapy
  • Pharmacotherapy
  • Citalopram
  • Fluoxetine
  • Paroxetine
  • Sertraline
  • Fluvoxamine
  • fMRI
  • Stop Signal Task
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In context

Anxiety Disorders

4,868 studies on the registry are indexed under Anxiety Disorders; 1,390 are open to participants now.

This study's enrollment of 78 is close to the median of 80 across 4,174 interventional studies indexed under Anxiety Disorders.

Browse Anxiety Disorders studies →

Lead sponsor

Shanghai Mental Health Center is the lead sponsor of 267 studies on the registry; 93 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
16 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Having been diagnosed with primary OCD as defined by the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-) criteria;Cleaning or checking as primary OCD symptoms
  • Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) score of ≥ 16
  • Never receiving adequate treatment or stop receiving treatment for at least 8 weeks
  • Having an education degree of high school or above
  • Accepting to participate in the study

Exclusion criteria

Exclusion Criteria:

  • Having significant medical illnesses that would interfere with the conduct of the study
  • Clinically significant abnormal laboratory finding
  • Having comorbid psychiatric conditions according to the criteria set forth in the DSM-IV(administered by the Mini-International Neuropsychiatric Interview (MINI))
  • The current OCD symptoms are too severe that the patient cannot finish the evaluation or receive the ERP
  • Being currently at risk for suicide
  • Being pregnant or having the intention to be pregnant before the end of the study
  • A history of having inadequate response to adequate SSRIs or CBT treatment
  • Subjects who are unable to undergo the MRI
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Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Single (Outcomes assessor)
Enrollment
78 participants (actual)

Study arms

  • Active comparator
    Selective Serotonin Reuptake Inhibitor

    In this group,routine treatment strategies will be used for patients. Any one of the SSRIs including fluoxetine, citalopram, paroxetine, sertraline, fluvoxamine ,which are approved in the treatment of OCD by SFDA, may be used for patients who are randomized to this treatment arm. The dosage depends on clinician's judgement ,but not over the maximum tolerated dosage.

    Drug: Fluoxetine · Drug: Sertraline · Drug: Paroxetine · Drug: Citalopram · Drug: Fluvoxamine

  • Active comparator
    Exposure and Response Prevention

    Exposure and Response Prevention Structured protocol described by Foa et al., 2012 Patients will attend eight 1-h sessions,once a week. Benzodiazepine will be used when necessary.

    Behavioral: Exposure and Response Prevention

Interventions

  • DrugFluoxetine

    The dosage depends on clinician's judgement ,but not over the maximum tolerated dosage.

    Also known as: Prozac

  • DrugSertraline

    The dosage depends on clinician's judgement ,but not over the maximum tolerated dosage.

    Also known as: Zoloft

  • DrugParoxetine

    The dosage depends on clinician's judgement ,but not over the maximum tolerated dosage.

    Also known as: Seroxat

  • DrugCitalopram

    The dosage depends on clinician's judgement ,but not over the maximum tolerated dosage.

    Also known as: Cipramil

  • DrugFluvoxamine

    The dosage depends on clinician's judgement ,but not over the maximum tolerated dosage.

    Also known as: Luvox

  • BehavioralExposure and Response Prevention

    8 exposure and response prevention (ERP) sessions,once a week

    Also known as: Exposure and Rituals Prevention

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What researchers measure

Primary outcomes

  1. The change of Yale-Brown Obsessive-Compulsive Scale score

    Patients were assessed at 0 week(w), 2w, 4w, 8w, 10w, 12w, 16w(0 month), 6 month

    Time frame: from baseline to month 6

Secondary outcomes

  1. The change of Beck Depression Inventory(BDI) score

    Patients were assessed at 0 week(w), 2w, 4w, 8w, 10w, 12w, 16w(0 month), 6 month

    Time frame: from baseline to month 6

  2. The change of Beck Anxiety Inventory(BAI) score

    Patients were assessed at 0 week(w), 2w, 4w, 8w, 10w, 12w, 16w(0 month), 6 month

    Time frame: from baseline to month 6

  3. The change of Stress Perceived Questionnaire (PSS-10) score

    Patients were assessed at 0 week(w),16w(0 month), 6 month

    Time frame: from baseline to month 6

  4. The change of Behavioral Inhibition/Behavioral Activation System Scales score

    Patients were assessed at 0 week(w), 16w(0 month), 6 month

    Time frame: from baseline to month 6

  5. The change of Barratt Impulsiveness Scale 11 (BIS-11) score

    Patients were assessed at 0 week(w), 16w(0 month), 6 month

    Time frame: from baseline to month 6

  6. The change of Obsessive Beliefs Questionnaire-44(OBQ-44) score

    Patients were assessed at 0 week(w), 16w(0 month), 6 month

    Time frame: from baseline to month 6

  7. The NEO-Five Factor Inventory-Revised (NEO-FFI-R)

    Patients were assessed at 0 week(w),

    Time frame: at baseline

  8. The Early Trauma Inventory Self Report-Short Form(ETISR-SF)

    Patients were assessed at 0 week(w)

    Time frame: at baseline

Other outcomes

  1. Stop Signal Task (SST)

    a measure of behavioral response inhibition

    Time frame: from baseline to month 6

  2. fMRI(Functional Magnetic Resonance Imaging) - stop signal task

    a measure of behavioral response inhibition

    Time frame: from baseline to month 6

  3. C Reaction Protein(CRP)

    for safety considerations

    Time frame: from baseline to month 6

  4. Complete Blood Count

    for safety considerations

    Time frame: from baseline to month 6

  5. Liver and Kidney Function

    for safety considerations

    Time frame: from baseline to month 6

  6. Resting State Functional Magnetic Resonance Imaging

    to quantify brain network

    Time frame: from baseline to month 6

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Study locations

1 site
  • Shanghai Mental Health Center
    Shanghai, Shanghai 200030, China
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 9, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02022709
Lead sponsor
Shanghai Mental Health Center
Collaborators
Shanghai Municipal Science and Technology Commission, Shanghai Jiao Tong University School of Medicine
Responsible party
Zhen Wang (Director, Research and Education Department, Shanghai Mental Health Center) — Principal investigator
First posted
Dec 30, 2013
Start date
Jan 2014
Primary completion
Nov 18, 2017
Completion
Mar 13, 2018
Last update
Sep 9, 2022

Study contacts

Zhen Wang, Ph.D, M.D
principal investigator · Shanghai Mental Health Center

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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