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WithdrawnNo phase

Waitlist-Control Trial of Smartphone (App-based) CBT for Social Anxiety Disorder (SAD), Withdrawn

Key facts

Who runs it
Massachusetts General Hospital
Where
Boston, United StatesSee the site
Trial code
Status
Withdrawn
Started
1 Sept 2023
Ended
1 Dec 2025
Type of study
Interventional, 2 groups
Treatments tested
  • Smartphone-delivered CBT for SAD
Record updated
1 July 2026
Why it stopped
No longer proceeding with this study.

Who can take part

Age
18 years and older
Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 12 criteriaShow less

Who can take part

  • At least 18 years of age
  • Current diagnosis of primary DSM-5 SAD, based on MINI
  • Currently living in the United States

Who cannot take part

  • Psychotropic medication changes within 2 months prior to enrollment i. Participants taking psychotropic medication must have been on a stable dose for at least 2 months prior to enrollment and not change medication during study period
  • Concurrent psychological treatment
  • Current severe substance use disorder
  • Lifetime bipolar disorder or psychosis
  • Past participation in ≥ 4 sessions of CBT for SAD
  • Current severe comorbid major depression, as indicated by clinical judgment and/or a QIDS-SR total score ≥ 21 ***EDIT***
  • Acute, active suicidal ideation as indicated by clinical judgment and/or a score ≥ 2 on the suicidal ideation subscale of the C-SSRS
  • Does not own a supported mobile Smartphone with a data plan
  • Lack of technology literacy that would interfere with ability to engage with smartphone treatment

Where in United States

  • Massachusetts General HospitalBoston, United States

About the trial

What the trial wants to find out

The investigators are testing the efficacy of Smartphone-delivered cognitive behavioral therapy (CBT) treatment for social anxiety disorder (SAD). The investigators hypothesize that participants receiving app-CBT will have greater reduction in LSAS scores than those in the waitlist condition at treatment endpoint (week 12).

The 2 groups in the trial

  • Experimental: Smartphone-delivered CBT for SADTreatment being tested

    12-week Smartphone delivered CBT for SAD.

    Treatment: Smartphone-delivered CBT for SAD

  • 12 Week Waitlist ControlOther group

    12-week waitlist control. (Note: participants will be crossed over to 12-week Smartphone-delivered CBT for SAD following the 12-week waitlist control).

    Treatment: Smartphone-delivered CBT for SAD

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Smartphone Cognitive Behavioral Therapy for Social Anxiety Disorder: A Randomized, Waitlist-control Trial
Record updated
1 July 2026