# The Effect of Nasal Carbon Dioxide (CO2) in the Treatment of Mild Headache in People Who Experience Migraines

> **NCT00690716** · PHASE2 · COMPLETED · sponsor: **Capnia, Inc.** · enrollment: 292 (actual)

## Conditions studied

- Migraine

## Interventions

- **DRUG:** Nasal CO2
- **DRUG:** Inactive Placebo

## Key facts

- **NCT ID:** NCT00690716
- **Lead sponsor:** Capnia, Inc.
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2008-08
- **Primary completion:** 2009-06
- **Final completion:** 2009-06
- **Target enrollment:** 292 (ACTUAL)
- **Last updated:** 2012-08-15


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00690716

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00690716, "The Effect of Nasal Carbon Dioxide (CO2) in the Treatment of Mild Headache in People Who Experience Migraines". Retrieved via AI Analytics 2026-06-05 from https://api.ai-analytics.org/clinical/NCT00690716. Licensed CC0.

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