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Major Depressive DisorderNCT04594616

Waitlist-Control Trial of Smartphone CBT for Major Depressive Disorder (MDD)

A study testing Smartphone-delivered CBT for MDD in people with Major Depressive Disorder, run by Massachusetts General Hospital at 1 site in United States.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

The investigators are testing the efficacy of Smartphone-delivered cognitive behavioral therapy (CBT) treatment for major depressive disorder (MDD). The investigators hypothesize that participants receiving app-CBT will have greater improvement in SIGH-D scores than those in the waitlist condition at treatment… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Major Depressive Disorder
What is being tested?
Smartphone-delivered CBT for MDD
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
1 siteUnited States
Study dates
1 Sep 2024to 1 Dec 2027
Phase
Interventional
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

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

Who cannot join

  • Psychotropic medication changes within 2 months prior to enrollment (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)
  • Past participation in ≥ 4 sessions of CBT for depression
  • Current severe substance use disorder
  • Lifetime bipolar disorder or psychosis
  • Acute, active suicidal ideation as indicated by clinical judgment and/or a score ≥ 2 on the suicidal ideation subscale of the C-SSRS
  • Concurrent psychological treatment
  • 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

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Massachusetts General Hospital

    Boston, Massachusetts, 02114

Other trials in United States

About this study

Official title: Smartphone Cognitive Behavioral Therapy for Major Depressive Disorder: A Randomized, Waitlist-control Trial

The investigators are testing the efficacy of Smartphone-delivered cognitive behavioral therapy (CBT) treatment for major depressive disorder (MDD). The investigators hypothesize that participants receiving app-CBT will have greater improvement in SIGH-D scores than those in the waitlist condition at treatment endpoint (week 8).

Read the detailed description

The primary aims of this study are to test the efficacy of a Smartphone-based CBT treatment for adults with MDD recruited nationally. Eligible subjects (N=112) will be randomly assigned to 8 weeks of Smartphone-delivered CBT for MDD either immediately, or after a 8-week long waiting period (50-50 chance). The investigators hypothesize that Smartphone-delivered CBT for MDD will be feasible and acceptable to individuals with MDD, and that it will lead to greater reductions in MDD symptom severity compared to the passage of time (waitlist control).

Being tested
Smartphone-delivered CBT for MDD
Medical subject headings
Depressive Disorder, Major

What participants receive

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

  • Smartphone-delivered CBT for MDDDevice

    8-week Smartphone-delivered CBT for MDD. In-person cognitive-behavioral therapy (CBT) is an empirically supported treatment for MDD. The app-delivered CBT in this project includes modules such as cognitive skills (e.g., cognitive restructuring, core belief work), behavioral activation, and perceptual retraining/mindfulness skills.

Study groups in NCT04594616
Study groupRoleWhat they receive
Smartphone-delivered CBT for MDDExperimental8-week Smartphone delivered CBT for MDD.
Receives: Device: Smartphone-delivered CBT for MDD
8 Week Waitlist ControlOther8-week waitlist control. (Note: participants will be crossed over to 8-week Smartphone-delivered CBT for MDD following the 8-week waitlist control).
Receives: Device: Smartphone-delivered CBT for MDD

What is being measured

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

  1. Difference in MDD severity (SIGH-D) at the end of treatment/waitlist period.

    The Structured Interview Guide for the Hamilton Depression Rating Scale (SIGH-D) is a clinician-administered interview that assesses depressive symptom severity in the past seven days. It contains 16 items ranging from 0-3, which are summed to generate a total score of depressive symptom severity (range=0-27). **** EDIT

    Measured: Endpoint (week 8)

Secondary outcomes (2)
  1. Difference in functional impairment at the end of treatment/waitlist period

    Participants who receive app-CBT will have greater improvement on functional impairment (WSAS). The WSAS uses a Likert scale from 0 (not impaired at all) to 8 (very severely impaired) to assess impairment in occupational, social, and family/friends domains. Higher scores indicate greater impairment.

    Measured: Endpoint (week 8)

  2. Difference in quality of life at the end of treatment/waitlist period: Q-LES-Q-SF

    Participants who receive app-CBT will have greater improvement on quality of life, assessed using The Quality of Life, Enjoyment, and Satisfaction Questionnaire - Short Form (Q-LES-Q). The Q-LES-Q-SF is a self-report measure of subjective quality of life, containing Likert items ranging from 1 (Very Poor) to 5 (Very Good). Total scores are presented as a percentage of the maximum value (i.e., ranging from 0 to 100, with higher scores indicating greater quality of life).

    Measured: Endpoint (week 8)

Timeline

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

  1. First posted20 Oct 2020
  2. Study start1 Sep 2024 (estimated)
  3. Primary completion1 Sep 2027 (estimated)
  4. Study completion1 Dec 2027 (estimated)

Why it stopped: Trial not initiated

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 N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04594616
Sponsor's protocol ID
2018P001670
Status last verified
May 2025
First submitted
13 Oct 2020
Last updated
26 May 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes

Questions about this trial

What is this clinical trial studying?

A study testing Smartphone-delivered CBT for MDD in people with Major Depressive Disorder, run by Massachusetts General Hospital at 1 site in United States.

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 3 inclusion and 8 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: withdrawn, as of the sponsor's last update on 26 May 2025. 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 United States. 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.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

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?

Difference in MDD severity (SIGH-D) at the end of treatment/waitlist period. (time frame: Endpoint (week 8)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 26 May 2025.

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