# Ketamine Frequency Treatment for Major Depressive Disorder

> **NCT00646087** · PHASE4 · WITHDRAWN · sponsor: **Essentia Health**

## Conditions studied

- Treatment Resistant Depression

## Interventions

- **DRUG:** Ketamine
- **DRUG:** Ketamine/Saline

## Key facts

- **NCT ID:** NCT00646087
- **Lead sponsor:** Essentia Health
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2008-03
- **Primary completion:** —
- **Final completion:** —
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** Pilot study determined that this study would not be feasible.
- **Last updated:** 2011-06-06


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00646087

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00646087, "Ketamine Frequency Treatment for Major Depressive Disorder". Retrieved via AI Analytics 2026-06-09 from https://api.ai-analytics.org/clinical/NCT00646087. Licensed CC0.

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