ClinicalTrials.gg
CompletedNCT01453439Updated Jul 15, 2020Results posted

Cognitive-Behavioral Therapy and Supportive Psychotherapy for Body Dysmorphic Disorder

An interventional study of Cognitive Behavioral Therapy and Supportive Psychotherapy in Body Dysmorphic Disorder, Obsessive-Compulsive Spectrum Disorder and Anxiety Disorders, sponsored by Massachusetts General Hospital. Completed at 2 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-07-15.

Sponsored by Massachusetts General Hospital · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
120
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to learn more about two different types of psychotherapy to help individuals who have body dysmorphic disorder (BDD). BDD is a severe, often chronic, and common disorder consisting of distressing or impairing preoccupation with perceived defects in one's physical appearance. Individuals with BDD have very poor psychosocial functioning and high rates of hospitalization and suicidality. Because BDD differs in important ways from other disorders, psychotherapies for other disorders are not adequate for BDD. Despite BDD's severity, there is no adequately tested psychosocial treatment (psychotherapy) of any type for this disorder. This study will compare the effectiveness of Cognitive Behavioral Therapy and Supportive Psychotherapy as well as predictors of improvement.

Read the detailed description

Body Dysmorphic Disorder (BDD) is a common and severe disorder in which a person is preoccupied by perceived defects in his or her appearance. The purpose of this research study is to learn more about two different forms of therapy to help individuals with BDD: cognitive behavioral therapy (CBT), a promising new treatment for BDD, and supportive psychotherapy (SPT), the most commonly received therapy for BDD. The investigators would like to find out which treatment is more effective for BDD. The investigators will also examine patient characteristics that may predict response to treatment.

Participants will be randomly assigned (like the flip of a coin) to receive 22 sessions (over 24 weeks) of either CBT or SPT. Both treatments teach participants about BDD. CBT focuses on helping participants to develop more adaptive thoughts and beliefs and to gradually reduce avoidance and compulsive (repetitive) behaviors. SPT focuses on relationships, feelings, and other factors that may affect BDD symptoms (e.g., work, stress), and helps participants to cope with challenges in their life by improving self-esteem and positive coping.

For each participant, this study will last for 12 months. CBT and SPT sessions occur for 22 sessions over 24 weeks. The severity of participants' BDD-related symptoms and other symptoms will be assessed at the end of treatment (week 24), and at 3- and 6-months after treatment ends.

02

Conditions studied

  • Body Dysmorphic Disorder
  • Obsessive-Compulsive Spectrum Disorder
  • Anxiety Disorders
  • Somatoform Disorders

Keywords

  • Body dysmorphic disorder
  • Obsessive compulsive spectrum disorder
  • Body image
  • Appearance concerns
03

In context

Body Dysmorphic Disorders

56 studies on the registry are indexed under Body Dysmorphic Disorders; 11 are open to participants now.

This study's enrollment of 120 is above the median of 52 across 44 interventional studies indexed under Body Dysmorphic Disorders.

Browse Body Dysmorphic Disorders studies →

Lead sponsor

Massachusetts General Hospital is the lead sponsor of 2,586 studies on the registry; 447 are open to participants now.

Of its 222 completed or terminated interventional studies of FDA-regulated products, 168 (76%) have results posted.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Outpatient men and women age 18 and older
  • BDD or its delusional variant for at least 6 months
  • BDD is the most problematic psychiatric disorder (in the patient's and clinician's opinion) and the primary reason for seeking treatment
  • Score of 24 or higher on the BDD-Yale-Brown Obsessive Compulsive Scale

Exclusion criteria

Exclusion Criteria:

  • Current suicidality and/or score on the BDI-II suicide item (#9) > 1
  • Any clinical features requiring a higher level of care
  • Mental retardation or borderline intellectual functioning (estimated IQ \< 80 on the Wechsler Abbreviated Scale of Intelligence) or dementia, brain damage, or other cognitive impairment that would interfere with ability to engage in CBT
  • substance abuse or dependence within the past 3 months; or a positive urine drug screen for any illicit substances of abuse
  • Current manic episode
  • Psychotic disorder
  • Borderline personality disorder
  • Body image concerns accounted for by an eating disorder
  • Previous treatment with > 10 sessions of CBT for BDD
  • Subjects cannot be receiving any other psychotherapy or begin such treatment during the study
  • Patients can be receiving psychotropic medication if they have taken a stable dose for at least two months before the study baseline assessment and the dose remains stable during the study.
  • Presence of any behavior (e.g., violence) that would interfere with full cooperation with the protocol.
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

DSM diagnostic criteria

The American Psychiatric Association’s manual of mental health diagnoses. DSM-5 (2013, revised as DSM-5-TR in 2022) replaced DSM-IV, and some studies still name the older edition. “Meets DSM criteria for …” means diagnosed by that edition’s diagnostic criteria, usually by a clinician in an interview.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
120 participants (actual)

Study arms

  • Experimental
    Cognitive Behavioral Therapy

    Group receiving Cognitive-Behavioral Therapy

    Behavioral: Cognitive Behavioral Therapy

  • Active comparator
    Supportive Psychotherapy

    Group receiving Supportive Psychotherapy

    Behavioral: Supportive Psychotherapy

Interventions

  • BehavioralCognitive Behavioral Therapy

    Participants will receive a total of 22 sessions (over 24 weeks) of individual, manual-based CBT. During the sessions, participants will receive education about BDD and CBT, learn to develop more helpful thoughts and beliefs, gradually enter anxiety provoking situations while reducing compulsions (repetitive behaviors), and learn relapse prevention techniques.

    Also known as: CBT

  • BehavioralSupportive Psychotherapy

    Participants will receive a total of 22 sessions (over 24 weeks) of individual, manual-based SPT. During the sessions, participants will receive education about BDD and SPT, learn about factors that may affect their symptoms (for example, relationships, work, stress), and learn to cope with challenges in their life by improving self-esteem and positive coping skills.

    Also known as: SPT

06

What researchers measure

Primary outcomes

  1. Body Dysmorphic Disorder Symptoms (as Measured by the BDD-YBOCS)

    The Yale-Brown Obsessive Compulsive Scale Modified for BDD (BDD-YBOCS) is a 12-item, semi-structured, clinician-administered measure of BDD symptom severity. The scale's items are summed to yield a total score with a range from 0 to 48, with higher scores indicating more severe BDD symptoms. Treatment effects on BDD symptom severity were analyzed separately for the treatment period (i.e., weeks 0-24) and the follow-up period (i.e., weeks 24 to 50).

    Time frame: Change in BDD-YBOCS from baseline (week 0) to post-treatment (week 24), assessed every 4 weeks. Followup phase data was measured at week 37 and week 50.

Secondary outcomes

  1. Insight Regarding BDD Beliefs (as Measured by the BABS)

    The Brown Assessment of Beliefs Scale (BABS) is a 7-item, semi-structured, clinician-administered measure that was used to assess insight regarding BDD-related beliefs (e.g., "I look deformed"). The first six items of the BABS were summed to obtain a total score ranging from 0 to 24, with higher scores reflecting poorer insight. Treatment effects on BABS score were analyzed separately for the treatment period (i.e., weeks 0-24) and the follow-up period (i.e., weeks 24 to 50).

    Time frame: Measured every 4 weeks during treatment, and at the 3-(wk 37) and 6-month(wk 50) follow-up visits

  2. Depressive Symptoms (as Measured by the BDI-II)

    The Beck Depression Inventory-Second Edition (BDI-II) is a widely used 21-item self-report scale that assesses the severity of depressive symptoms during the past 2 weeks. Total scale scores range from 0 to 63, with higher scores indicating greater symptom severity. Treatment effects on depression were analyzed separately for the treatment period (i.e., weeks 0-24) and the follow-up period (i.e., weeks 24 to 50).

    Time frame: Measured every week during treatment, but analysis was performed only on BDI-II assessments close to assessment visits; wk 0, 4, 8, 12, 16, 20 and 24. Followup phase data was measured at week 37 and week 50.

  3. Life Satisfaction (Q-LESQ-SF)

    The Quality of Life Enjoyment and Satisfaction Questionnaire-Short Form (Q-LESQ-SF) is a 16-item, self-report questionnaire that assesses life satisfaction over the past week. Questions 1-14 are then summed to a total score, and the total score is reported as a percentage maximum possible, such that the % score range is 0% to 100%, with higher scores indicating greater quality of life. Treatment effects on life satisfaction were analyzed separately for the treatment period (i.e., weeks 0-24) and the follow-up period (i.e., weeks 24 to 50).

    Time frame: Measured at week 0, 4, 12, 16, and 24 during treatment. Follow-up phase data was measured at week 37 and at week 50.

  4. Treatment Credibility (Credibility/Expectancy Rating Scale)

    The Treatment Credibility/Expectancy Rating scale is a 4-item self-report questionnaire that assesses patients' judgments about the credibility of the treatment rationale, expectancy of change, and treatment acceptability. Treatment credibility is based on the mean score of the first three items, which are measured on 10-point Likert scales, so that mean scores range from 1 (lowest/worst) to 10 (highest/most). Treatment credibility was assessed at the baseline assessment (before treatment assignment) and after 1 month of treatment when patients are more familiar with the treatment protocol and rationale.

    Time frame: Measured twice during the study (week 0 [pre-treatment] and at week 4)

  5. Beliefs About Appearance (as Measured by the ASI-R)

    Time frame: Measured three times during the study (week 0 [pre-treatment], week 12, and week 24 [post-treatment])

  6. Neuropsychological Functioning (as Measured by the ROCF)

    Time frame: Measured three times during the study (week 0 [pre-treatment], week 12, and week 24 [post-treatment])

  7. Information Processing (as Measured by the ERT)

    Time frame: Measured three times during the study (week 0 [pre-treatment], week 12, and week 24 [post-treatment])

  8. Sheehan Disability Scale (SDS)

    The Sheehan Disability Scale (SDS) is a 5-item self-report measure of functional impairment/disability. Items 1-3 (disability in work, social life/leisure, and family life/home responsibilities, respectively) are scored on Likert-scales that range from 0 (not at all) to 10 (extreme). The three items are then summed to yield an SDS total score, ranging from 0 (unimpaired) to 30 (highly impaired). Treatment effects on functional impairment were analyzed separately for the treatment period (i.e., weeks 0-24) and the follow-up period (i.e., weeks 24 to 50).

    Time frame: Measured at baseline, week 4, week 12, week 16, and week 24. Follow-up phase data was measured at week 37 and at week 50.

  9. Treatment Satisfaction (CSQ-8)

    The Client Satisfaction Questionnaire (CSQ-8) is an 8-item self-report questionnaire that assesses satisfaction with clinical services received and has a score range of 8-32, where higher scores indicate higher satisfaction.

    Time frame: The CSQ-8 was assessed twice: at week 12 [mid-treatment] and at week 24 [post-treatment]

  10. Treatment Expectancy (Credibility/Expectancy Rating Scale)

    The Treatment Credibility/Expectancy Rating scale is a 4-item self-report questionnaire that assesses patients' judgments about the credibility of the treatment rationale, expectancy of change, and treatment acceptability. Treatment expectancy is a single item rating of "By the end of therapy, how much improvement in your anxiety do you think will occur?", rated on a scale from 0% to 100%. It was assessed at the baseline assessment (before treatment assignment) and after 1 month of treatment when patients are more familiar with the treatment protocol and rationale.

    Time frame: Measured twice during the study (week 0 [pre-treatment] and at week 4)

07

Results

Posted Jul 15, 2020

Participant flow

Treatment Phase
Participant flow — Treatment Phase
MilestoneCognitive Behavior Therapy (CBT)Supportive Psychotherapy (SPT)
Started6159
Completed4448
Not completed1711
Withdrew: Withdrawal by subject1310
Withdrew: Suicidal ideation20
Withdrew: Need for higher level of care11
Withdrew: Therapist conflict of interest10
Follow-up
Participant flow — Follow-up
MilestoneCognitive Behavior Therapy (CBT)Supportive Psychotherapy (SPT)
Started4448
Completed3937
Not completed511
Withdrew: Withdrawal by subject01
Withdrew: Lost to follow-up510

Outcome measures

PrimaryBody Dysmorphic Disorder Symptoms (as Measured by the BDD-YBOCS)

The Yale-Brown Obsessive Compulsive Scale Modified for BDD (BDD-YBOCS) is a 12-item, semi-structured, clinician-administered measure of BDD symptom severity. The scale's items are summed to yield a total score with a range from 0 to 48, with higher scores indicating more severe BDD symptoms. Treatment effects on BDD symptom severity were analyzed separately for the treatment period (i.e., weeks 0-24) and the follow-up period (i.e., weeks 24 to 50).

Time frame:
Change in BDD-YBOCS from baseline (week 0) to post-treatment (week 24), assessed every 4 weeks. Followup phase data was measured at week 37 and week 50.
Reported as:
Mean · score on a scale
Body Dysmorphic Disorder Symptoms (as Measured by the BDD-YBOCS)
score on a scaleCognitive Behavior Therapy (CBT)Supportive Psychotherapy (SPT)
Baseline32.21 ± 4.7231.49 ± 4.94
Week 426.92 ± 6.2027.27 ± 6.41
Week 824.34 ± 7.7025.09 ± 7.57
Week 1219.67 ± 8.2122.80 ± 8.90
week 1617.74 ± 9.2122.13 ± 9.33
Week 2015.95 ± 9.3219.02 ± 9.44
Week 2413.34 ± 9.4618.67 ± 9.77
Week 3712.30 ± 9.8417.46 ± 9.81
Week 5012.31 ± 10.7516.90 ± 10.94
Statistical analysis
  • Cognitive Behavior Therapy (CBT) vs Supportive Psychotherapy (SPT) · Mixed Models Analysis · p = <.01 (Degrees of freedom=90.9) · Slope: -0.4602The estimated value describes the mean slope difference of CBT compared to SPT.
  • Cognitive Behavior Therapy (CBT) vs Supportive Psychotherapy (SPT) · Mixed Models Analysis · p = .62 (Degrees of freedom=74.7) · Slope: -0.00984The estimated value describes the mean slope difference of CBT compared to SPT during follow-up (week 24 to week 50).
SecondaryInsight Regarding BDD Beliefs (as Measured by the BABS)

The Brown Assessment of Beliefs Scale (BABS) is a 7-item, semi-structured, clinician-administered measure that was used to assess insight regarding BDD-related beliefs (e.g., "I look deformed"). The first six items of the BABS were summed to obtain a total score ranging from 0 to 24, with higher scores reflecting poorer insight. Treatment effects on BABS score were analyzed separately for the treatment period (i.e., weeks 0-24) and the follow-up period (i.e., weeks 24 to 50).

Time frame:
Measured every 4 weeks during treatment, and at the 3-(wk 37) and 6-month(wk 50) follow-up visits
Reported as:
Mean · units on a scale
Insight Regarding BDD Beliefs (as Measured by the BABS)
units on a scaleCognitive Behavior Therapy (CBT)Supportive Psychotherapy (SPT)
Baseline17.2459016 ± 4.260890915.4067797 ± 4.1817281
Week 414.7500000 ± 5.253850113.3090909 ± 5.0584463
Week 814.5128205 ± 5.906605612.8500000 ± 5.0765928
Week 1210.8837209 ± 5.856251511.1304348 ± 6.0428422
week 1610.8571429 ± 7.27699839.7608696 ± 5.3465868
Week 209.8461538 ± 6.543532210.0277778 ± 5.8235292
Week 248.3636364 ± 7.58238757.9791667 ± 5.8908136
Week 376.6279070 ± 7.00007918.3170732 ± 5.8199614
Week 507.1578947 ± 7.96793007.3783784 ± 5.7848046
Statistical analysis
  • Cognitive Behavior Therapy (CBT) vs Supportive Psychotherapy (SPT) · Mixed Models Analysis · p = .10 (Degrees of freedom=93.2)
  • Cognitive Behavior Therapy (CBT) vs Supportive Psychotherapy (SPT) · Mixed Models Analysis · p = .45 (Degrees of freedom=74.5)
SecondaryDepressive Symptoms (as Measured by the BDI-II)

The Beck Depression Inventory-Second Edition (BDI-II) is a widely used 21-item self-report scale that assesses the severity of depressive symptoms during the past 2 weeks. Total scale scores range from 0 to 63, with higher scores indicating greater symptom severity. Treatment effects on depression were analyzed separately for the treatment period (i.e., weeks 0-24) and the follow-up period (i.e., weeks 24 to 50).

Time frame:
Measured every week during treatment, but analysis was performed only on BDI-II assessments close to assessment visits; wk 0, 4, 8, 12, 16, 20 and 24. Followup phase data was measured at week 37 and week 50.
Reported as:
Mean · units on a scale
Depressive Symptoms (as Measured by the BDI-II)
units on a scaleCognitive Behavior Therapy (CBT)Supportive Psychotherapy (SPT)
Baseline22.1639344 ± 13.192397222.8620690 ± 13.6117187
Week 418.6923077 ± 11.721504421.4035088 ± 14.9938793
Week 816.9591837 ± 13.495306619.3076923 ± 14.3178737
Week 1215.2000000 ± 13.103781519.6041667 ± 14.8563900
week 1613.4000000 ± 12.944637417.5416667 ± 15.3220163
Week 2011.4545455 ± 11.347481115.9302326 ± 14.2300744
Week 2410.5348837 ± 12.296629115.6041667 ± 14.2541365
Week 379.2307692 ± 11.412047012.8611111 ± 13.9328036
Week 5012.0606061 ± 15.303062213.6666667 ± 13.6541855
Statistical analysis
  • Cognitive Behavior Therapy (CBT) vs Supportive Psychotherapy (SPT) · Mixed Models Analysis · p = .05 (Degrees of freedom=89.1)
  • Cognitive Behavior Therapy (CBT) vs Supportive Psychotherapy (SPT) · Mixed Models Analysis · p = .26 (Degrees of freedom=63.7)
SecondaryLife Satisfaction (Q-LESQ-SF)

The Quality of Life Enjoyment and Satisfaction Questionnaire-Short Form (Q-LESQ-SF) is a 16-item, self-report questionnaire that assesses life satisfaction over the past week. Questions 1-14 are then summed to a total score, and the total score is reported as a percentage maximum possible, such that the % score range is 0% to 100%, with higher scores indicating greater quality of life. Treatment effects on life satisfaction were analyzed separately for the treatment period (i.e., weeks 0-24) and the follow-up period (i.e., weeks 24 to 50).

Time frame:
Measured at week 0, 4, 12, 16, and 24 during treatment. Follow-up phase data was measured at week 37 and at week 50.
Reported as:
Mean · units on a scale
Life Satisfaction (Q-LESQ-SF)
units on a scaleCognitive Behavior Therapy (CBT)Supportive Psychotherapy (SPT)
Baseline48.7500000 ± 15.060339350.6961259 ± 16.6428814
Week 449.6648352 ± 15.876352251.7857143 ± 18.0729259
Week 1261.0119048 ± 17.321750457.6190476 ± 17.6382690
Week 1660.8894231 ± 15.911763457.3457792 ± 19.9192124
week 2468.2055749 ± 19.390503663.9437690 ± 19.0175684
Week 3769.1849817 ± 17.514178164.3339768 ± 17.0683239
Week 5066.5095899 ± 21.276801765.8928571 ± 19.3884669
Statistical analysis
  • Cognitive Behavior Therapy (CBT) vs Supportive Psychotherapy (SPT) · Mixed Models Analysis · p = .04 (Degrees of freedom=91.4)
  • Cognitive Behavior Therapy (CBT) vs Supportive Psychotherapy (SPT) · Mixed Models Analysis · p = .82 (Degrees of freedom=74.7)
SecondaryTreatment Credibility (Credibility/Expectancy Rating Scale)

The Treatment Credibility/Expectancy Rating scale is a 4-item self-report questionnaire that assesses patients' judgments about the credibility of the treatment rationale, expectancy of change, and treatment acceptability. Treatment credibility is based on the mean score of the first three items, which are measured on 10-point Likert scales, so that mean scores range from 1 (lowest/worst) to 10 (highest/most). Treatment credibility was assessed at the baseline assessment (before treatment assignment) and after 1 month of treatment when patients are more familiar with the treatment protocol and rationale.

Time frame:
Measured twice during the study (week 0 [pre-treatment] and at week 4)
Reported as:
Mean · score on a scale
Treatment Credibility (Credibility/Expectancy Rating Scale)
score on a scaleCognitive Behavior Therapy (CBT)Supportive Psychotherapy (SPT)
Week 07.10 ± 1.796.64 ± 1.84
Week 47.19 ± 1.686.28 ± 1.84
Statistical analysis
  • Cognitive Behavior Therapy (CBT) vs Supportive Psychotherapy (SPT) · ANOVA · p = 0.0095 (Effect of interest: Treatment main effect, two-sided alpha = 0.05 effect adjusted for site effects, time effects, and interactions) · Mean difference (net): 0.7937Least Squares Means difference
SecondaryBeliefs About Appearance (as Measured by the ASI-R)
Time frame:
Measured three times during the study (week 0 [pre-treatment], week 12, and week 24 [post-treatment])

Results for this outcome have not been posted.

SecondaryNeuropsychological Functioning (as Measured by the ROCF)
Time frame:
Measured three times during the study (week 0 [pre-treatment], week 12, and week 24 [post-treatment])

Results for this outcome have not been posted.

SecondaryInformation Processing (as Measured by the ERT)
Time frame:
Measured three times during the study (week 0 [pre-treatment], week 12, and week 24 [post-treatment])

Results for this outcome have not been posted.

SecondarySheehan Disability Scale (SDS)

The Sheehan Disability Scale (SDS) is a 5-item self-report measure of functional impairment/disability. Items 1-3 (disability in work, social life/leisure, and family life/home responsibilities, respectively) are scored on Likert-scales that range from 0 (not at all) to 10 (extreme). The three items are then summed to yield an SDS total score, ranging from 0 (unimpaired) to 30 (highly impaired). Treatment effects on functional impairment were analyzed separately for the treatment period (i.e., weeks 0-24) and the follow-up period (i.e., weeks 24 to 50).

Time frame:
Measured at baseline, week 4, week 12, week 16, and week 24. Follow-up phase data was measured at week 37 and at week 50.
Reported as:
Mean · score on a scale
Sheehan Disability Scale (SDS)
score on a scaleCognitive Behavior Therapy (CBT)Supportive Psychotherapy (SPT)
Baseline16.3333333 ± 5.562180617.4406780 ± 6.0522757
Week 415.1000000 ± 6.392757415.5000000 ± 7.0056000
Week 1211.7142857 ± 7.402325712.2222222 ± 7.8534558
Week 169.7250000 ± 7.666067411.7272727 ± 8.2019953
week 247.9024390 ± 8.29700219.0869565 ± 7.2105666
Week 376.4871795 ± 6.36136289.2162162 ± 7.7428646
Week 506.6388889 ± 8.19809318.3666667 ± 7.8013409
Statistical analysis
  • Cognitive Behavior Therapy (CBT) vs Supportive Psychotherapy (SPT) · Mixed Models Analysis · p = .30 (Degrees of freedom=88.0)
  • Cognitive Behavior Therapy (CBT) vs Supportive Psychotherapy (SPT) · Mixed Models Analysis · p = .85 (Degrees of freedom=74.5)
SecondaryTreatment Satisfaction (CSQ-8)

The Client Satisfaction Questionnaire (CSQ-8) is an 8-item self-report questionnaire that assesses satisfaction with clinical services received and has a score range of 8-32, where higher scores indicate higher satisfaction.

Time frame:
The CSQ-8 was assessed twice: at week 12 [mid-treatment] and at week 24 [post-treatment]
Reported as:
Mean · score on a scale
Treatment Satisfaction (CSQ-8)
score on a scaleCognitive Behavior Therapy (CBT)Supportive Psychotherapy (SPT)
Week 1228.02 ± 2.8826.60 ± 3.82
Week 2429.40 ± 3.5627.56 ± 4.07
Statistical analysis
  • Cognitive Behavior Therapy (CBT) vs Supportive Psychotherapy (SPT) · ANOVA · p = 0.0235 (a priori significance level: 2-sided alpha = 0.05 effect adjusted for site effects, time effects, and interactions) · Mean difference (net): 1.5867Least Squares Means difference
SecondaryTreatment Expectancy (Credibility/Expectancy Rating Scale)

The Treatment Credibility/Expectancy Rating scale is a 4-item self-report questionnaire that assesses patients' judgments about the credibility of the treatment rationale, expectancy of change, and treatment acceptability. Treatment expectancy is a single item rating of "By the end of therapy, how much improvement in your anxiety do you think will occur?", rated on a scale from 0% to 100%. It was assessed at the baseline assessment (before treatment assignment) and after 1 month of treatment when patients are more familiar with the treatment protocol and rationale.

Time frame:
Measured twice during the study (week 0 [pre-treatment] and at week 4)
Reported as:
Mean · Percent improvement expected (0-100%)
Treatment Expectancy (Credibility/Expectancy Rating Scale)
Percent improvement expected (0-100%)Cognitive Behavior Therapy (CBT)Supportive Psychotherapy (SPT)
Week 058.36 ± 20.7150.19 ± 19.28
Week 456.00 ± 20.4046.73 ± 20.55
Statistical analysis
  • Cognitive Behavior Therapy (CBT) vs Supportive Psychotherapy (SPT) · ANOVA · p = 0.0069 (a priori significance level: 2-sided alpha=0.05 effect adjusted for site effects, time effects, and interactions) · Median difference (net): 9.4390Least Squares Mean difference

Adverse events

Collected over Adverse event data was collected every 4 weeks at the beginning of therapy sessions, at the post-treatment visit, and at the 3- and 6-month follow-up visits (for a total of 1 year for each participant who completed the full study protocol). At these assessments, participants were probed for adverse events that occurred since the last adverse event assessment (usually 4 weeks prior).. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Cognitive Behavior Therapy (CBT)0/61 (0%)5/61 (8.2%)34/61 (55.7%)
Supportive Psychotherapy (SPT)0/59 (0%)3/59 (5.1%)30/59 (50.8%)
Most frequent serious events
Most frequent serious events
EventCognitive Behavior Therapy (CBT)Supportive Psychotherapy (SPT)
Suicidal ideationPsychiatric disorders1/611/59
MononucleosisInfections and infestations0/611/59
Anaphylactic shockImmune system disorders0/611/59
Increase in BDD and depressive SymptomsPsychiatric disorders1/610/59
Self-harmPsychiatric disorders1/610/59
Negative reaction to anesthesiaGastrointestinal disorders1/610/59
Pain felt in one arm for a couple of daysGeneral disorders1/610/59
Cardiac surgeryCardiac disorders1/610/59
Most frequent other events
Most frequent other events
EventCognitive Behavior Therapy (CBT)Supportive Psychotherapy (SPT)
Increased anxiety and/or depressionPsychiatric disorders8/6113/59
Injury, poisoning, and procedural complicationsInjury, poisoning and procedural complications9/615/59
Increase in other psychiatric symptomsPsychiatric disorders8/613/59
Surgical and medical proceduresSurgical and medical procedures2/614/59
Suicidal ideation and/or self-harmPsychiatric disorders4/611/59
Nervous system disordersNervous system disorders4/613/59
Respiratory, thoracic and mediastinal disordersRespiratory, thoracic and mediastinal disorders2/613/59
Social circumstancesSocial circumstances2/613/59

Baseline characteristics

Age, Continuous
Age, Continuous(years)Cognitive Behavior Therapy (CBT)Supportive Psychotherapy (SPT)Total
Mean34.5 ± 14.533.4 ± 11.533.9 ± 12.9
Sex: Female, Male
Sex: Female, Male(Participants)Cognitive Behavior Therapy (CBT)Supportive Psychotherapy (SPT)Total
Female464692
Male151328
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)Cognitive Behavior Therapy (CBT)Supportive Psychotherapy (SPT)Total
White, Non-Hispanic4753100
White, Hispanic224
Black112
Asian/Pacific Islander617
Other527
Region of Enrollment
Region of Enrollment(Participants)Cognitive Behavior Therapy (CBT)Supportive Psychotherapy (SPT)Total
United States6159120
08

Study locations

2 sites
  • Massachusetts General Hospital
    Boston, Massachusetts 02114, United States
  • Rhode Island Hospital
    Providence, Rhode Island 02903, United States
09

References and documents

Publications

  • Wilhelm S, Phillips KA, Greenberg JL, O'Keefe SM, Hoeppner SS, Keshaviah A, Sarvode-Mothi S, Schoenfeld DA. Efficacy and Posttreatment Effects of Therapist-Delivered Cognitive Behavioral Therapy vs Supportive Psychotherapy for Adults With Body Dysmorphic Disorder: A Randomized Clinical Trial. JAMA Psychiatry. 2019 Apr 1;76(4):363-373. doi: 10.1001/jamapsychiatry.2018.4156. Erratum In: JAMA Psychiatry. 2019 Apr 1;76(4):447. doi: 10.1001/jamapsychiatry.2019.0606. PubMed 30785624 ↗
10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 15, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01453439
Responsible party
Sabine Wilhelm, PhD (Sabine Wilhelm, PhD, Massachusetts General Hospital) — Principal investigator
First posted
Oct 17, 2011
Start date
Aug 2011
Primary completion
Jan 5, 2017
Completion
Jun 7, 2017
Results posted
Jul 15, 2020
Last update
Jul 15, 2020

Study contacts

Sabine Wilhelm, Ph.D.
principal investigator · Massachusetts General Hospital
Katharine Phillips, M.D.
principal investigator · Rhode Island Hospital

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jul 2020. You cannot join it, but the record below documents what was studied.

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