# Study Comparing Outcomes for Patients With Treatment Resistant Depression Who Receive VNS Therapy at Different Doses

> **NCT00305565** · PHASE4 · COMPLETED · sponsor: **Cyberonics, Inc.** · enrollment: 331 (actual)

## Conditions studied

- Depression

## Interventions

- **DEVICE:** VNS Therapy
- **DEVICE:** VNS Therapy
- **DEVICE:** VNS Therapy

## Key facts

- **NCT ID:** NCT00305565
- **Lead sponsor:** Cyberonics, Inc.
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2006-01
- **Primary completion:** 2010-02
- **Final completion:** 2010-02
- **Target enrollment:** 331 (ACTUAL)
- **Last updated:** 2014-01-07


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00305565

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00305565, "Study Comparing Outcomes for Patients With Treatment Resistant Depression Who Receive VNS Therapy at Different Doses". Retrieved via AI Analytics 2026-06-10 from https://api.ai-analytics.org/clinical/NCT00305565. Licensed CC0.

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