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

> **NCT04594616** · NA · WITHDRAWN · sponsor: **Massachusetts General Hospital**

## Conditions studied

- Major Depressive Disorder

## Interventions

- **DEVICE:** Smartphone-delivered CBT for MDD

## Key facts

- **NCT ID:** NCT04594616
- **Lead sponsor:** Massachusetts General Hospital
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2024-09-01
- **Primary completion:** 2027-09-01
- **Final completion:** 2027-12-01
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** Trial not initiated
- **Last updated:** 2025-05-26

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04594616

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04594616, "Waitlist-Control Trial of Smartphone CBT for Major Depressive Disorder (MDD)". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT04594616. Licensed CC0.

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