# Treatment-Resistant Depression Registry

> **NCT00320372** · — · COMPLETED · sponsor: **Cyberonics, Inc.** · enrollment: 795 (actual)

## Conditions studied

- Major Depressive Disorder

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00320372
- **Lead sponsor:** Cyberonics, Inc.
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2006-01
- **Primary completion:** 2015-03
- **Final completion:** 2015-05
- **Target enrollment:** 795 (ACTUAL)
- **Last updated:** 2015-12-23


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00320372

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00320372, "Treatment-Resistant Depression Registry". Retrieved via AI Analytics 2026-06-04 from https://api.ai-analytics.org/clinical/NCT00320372. Licensed CC0.

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