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Obsessive Compulsive DisorderPhase 4GCBTVFNCT00680602

Group Cognitive Behavioral Therapy Versus Fluoxetine for Obsessive-Compulsive Disorder: a Practical Trial

A Phase 4 study testing Group Cognitive Behavior Therapy and SSRI (fluoxetine, sertraline, paroxetine, citalopram) in people with Obsessive Compulsive Disorder, run by University of Sao Paulo at 1 site in Brazil.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

First line treatments fo Obsessive Compulsive Disorder (OCD) are Selective Serotonin Recapture Inhibitors (SSRIs) and Cognitive Behaviour Therapy (CBT) including exposure with response prevention. The aim of the present study is to evaluate the clinical efficacy of GCBT and SSRIs for OCD patients. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Obsessive Compulsive Disorder
What is being tested?
Group Cognitive Behavior Therapy and SSRI (fluoxetine, sertraline, paroxetine, citalopram)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
158 participants
Where
1 siteBrazil
Study dates
Jan 2006to Sep 2008
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Having been diagnosed with primary OCD according to the criteria set forth in the DSM-IV;
  • Current symptoms causing significant distress (YBOCS score greater than 16);
  • Not receiving current adequate treatment;
  • Accepting to participate in the study

Who cannot join

  • Having a clinical or neurological disease that might be worsened by the medicines included in the treatment protocol;
  • Presenting current substance dependence or abuse;
  • Exhibiting current psychotic symptoms; being currently at risk for suicide;
  • And, being pregnant or having the intention to become pregnant prior to the end of the treatment protocol

Trial locations and contacts

1 site in 1 country.

Brazil1 site

  • Institute of Psychiatry, Clinics Hospital, University of São Paulo Medical School

    São Paulo, São Paulo, 05403-010

Other trials in Brazil

About this study

Official title: Group Cognitive Behavioral Therapy Versus Fluoxetine for Obsessive-Compulsive Disorder: a Randomized Open Trial for Any Patient.

First line treatments fo Obsessive Compulsive Disorder (OCD) are Selective Serotonin Recapture Inhibitors (SSRIs) and Cognitive Behaviour Therapy (CBT) including exposure with response prevention. The aim of the present study is to evaluate the clinical efficacy of GCBT and SSRIs for OCD patients. Other clinical trials have compared these treatments, but with OCD patients without any other psychiatric disorder. In this study patients with current age between 18 and 65 years, with YBOCS score of at least 16 and psychiatric comorbidities will be not excluded. Exclusion criteria will be: OCD secondary to brain trauma, stroke or malformation; current abuse of alcohol or other psychoactive substance, current presence of psychotic symptoms, suicidal risk, psychiatric or clinical comorbidity that might get worse with the medications used in the trial. So, the present study investigates the efficacy of these treatments for a heterogeneous OCD population, trying to identify if the usual treatments are efficient when applied in the public health system that treat not just patients with only OCD diagnosis. Patients will be randomized for GCBT and SSRI, and after treatment will be evaluated by researchers blind to the treatment received.

Read the detailed description

During the last decades, different pharmacological and psychotherapeutic strategies have been used to treat patients with obsessive compulsive disorder (OCD). Drugs that inhibit the serotonin recapture and the cognitive behavior therapy, that includes the exposure with response prevention and cognitive strategies, have been the most efficient treatment so far. This study's aims are to compare group cognitive-behavior therapy and standard pharmacological treatment (SRIs) in a world real population, using broader inclusion criteria. DSM-IV diagnostic criteria for OCD will be used (APA, 1994) and patients will be interviewed with the following instruments: SCID-I and Y-BOCS. Inclusion criteria are: (1) OCD diagnosis, (2) YBOCS score ≥ 16 (for patients with both obsessions and compulsions) or ≥ 10 (for patients with only obsessions or compulsions), (3) informed consent to participate in this clinical trial. Exclusion criteria are: (1) patients with clinical or neurological diseases that may be worsen by the medications included in treatment protocol, (2) Current substance dependence, (3) Current psychotic symptoms, (4) Current suicide risk. Patients will be randomized in blocks of 12 and with stratification for the following parameters: current SSRI, age, sex and previous response to treatment. Rates of improvement will be based on the results of the YBOCS scores for obsessions and compulsions and on the results of the clinical global impression scale. Pos-treatment measures will be assessed by psychiatrists or psychologists not involved in the patients treatment that will be blind for the treatment being received by the patient. The patient will be considered responsive to treatment when he or she presents a reduction in YBOCS score ≥ 35% of the initial score and a CGI score of 1 (very much improved) or 2 (much improved). The results of this study will help us to identify better health politics planning to a heterogeneous OCD population. So, it will improve our knowledge about the efficacy of the first line treatments in a real world OCD population.

Being tested
Group Cognitive Behavior Therapy, SSRI (fluoxetine, sertraline, paroxetine, citalopram)
Keywords
behavior therapy, group therapy, psychopharmacology
Medical subject headings
Obsessive-Compulsive Disorder

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Group Cognitive Behavior TherapyBehavioural

    Also called behavior therapy, CBT, group psychotherapy

    Structured protocol described by Cordioli et al., 2003

  • SSRI (fluoxetine, sertraline, paroxetine, citalopram)Drug

    Also called Prozac, Zoloft, Paxil, Cipramil

    Fluoxetine (80mg/day or maximum tolerated dosage) Sertraline (200mg/day or maximum tolerated dosage) Paroxetine (60 mg/day or maximum tolerated dosage) Citalopram (60 mg/day or maximum tolerated dosage)

Study groups in NCT00680602
Study groupRoleWhat they receive
1ExperimentalGroup Cognitive Behavior Therapy
Receives: Behavioral: Group Cognitive Behavior Therapy
2Active comparatorSelective Serotonin Reuptake Inhibitor
Receives: Drug: SSRI (fluoxetine, sertraline, paroxetine, citalopram)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) (Goodman et al., 1989) and Clinical Global Impressions (CGI) (Guy, 1976) will be implemented at pre and post treatment by a blind evaluator to the treatment received.

    Measured: 12 weeks

Secondary outcomes (1)

  1. Quality of life measured by SF 36 and social adjustment measured by EAS.

    Measured: 12 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 May 2008 (estimated)
  2. Study startJan 2006
  3. Primary completionSep 2008
  4. Study completionSep 2008

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Health services research
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
158 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00680602
Sponsor's protocol ID
06/50829-8
Acronym
GCBTVF
Status last verified
Feb 2009
First submitted
15 May 2008
Last updated
16 Feb 2009
Results posted
No
Data monitoring committee
No

Publications

  • da Conceicao Costa DL, Shavitt RG, Castro Cesar RC, Joaquim MA, Borcato S, Valerio C, Miguel EC, Diniz JB. Can early improvement be an indicator of treatment response in obsessive-compulsive disorder? Implications for early-treatment decision-making. J Psychiatr Res. 2013 Nov;47(11):1700-7. doi: 10.1016/j.jpsychires.2013.07.006. Epub 2013 Aug 13.

    PubMed 23948637

  • Hoexter MQ, Dougherty DD, Shavitt RG, D'Alcante CC, Duran FL, Lopes AC, Diniz JB, Batistuzzo MC, Evans KC, Bressan RA, Busatto GF, Miguel EC. Differential prefrontal gray matter correlates of treatment response to fluoxetine or cognitive-behavioral therapy in obsessive-compulsive disorder. Eur Neuropsychopharmacol. 2013 Jul;23(7):569-80. doi: 10.1016/j.euroneuro.2012.06.014. Epub 2012 Jul 27.

    PubMed 22841131

  • Belotto-Silva C, Diniz JB, Malavazzi DM, Valerio C, Fossaluza V, Borcato S, Seixas AA, Morelli D, Miguel EC, Shavitt RG. Group cognitive-behavioral therapy versus selective serotonin reuptake inhibitors for obsessive-compulsive disorder: a practical clinical trial. J Anxiety Disord. 2012 Jan;26(1):25-31. doi: 10.1016/j.janxdis.2011.08.008. Epub 2011 Aug 19.

    PubMed 21907540

  • Fossaluza V, Diniz JB, Pereira Bde B, Miguel EC, Pereira CA. Sequential allocation to balance prognostic factors in a psychiatric clinical trial. Clinics (Sao Paulo). 2009;64(6):511-8. doi: 10.1590/s1807-59322009000600005.

    PubMed 19578654

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Group Cognitive Behavior Therapy and SSRI (fluoxetine, sertraline, paroxetine, citalopram) in people with Obsessive Compulsive Disorder, run by University of Sao Paulo at 1 site in Brazil.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 16 Feb 2009. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) (Goodman et al., 1989) and Clinical Global Impressions (CGI) (Guy, 1976) will be implemented at pre and post treatment by a blind evaluator to the treatment received. (time frame: 12 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00680602, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Feb 2009.

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GCBTVF Clinical Trial NCT00680602 | AzTrials