# Efficacy of Premixed Nitrous Oxide and Oxygen in Elderly Patient With Out-of-hospital Severe Acute Pain

> **NCT01990404** · PHASE2,PHASE3 · TERMINATED · sponsor: **University Hospital, Toulouse** · enrollment: 43 (actual)

## Conditions studied

- Pain Acute

## Interventions

- **DRUG:** Premixed 50% nitrous oxide and oxygen
- **DRUG:** Medical Air

## Key facts

- **NCT ID:** NCT01990404
- **Lead sponsor:** University Hospital, Toulouse
- **Sponsor class:** OTHER
- **Phase:** PHASE2,PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** TERMINATED
- **Start date:** 2013-07
- **Primary completion:** 2015-12
- **Final completion:** 2016-06
- **Target enrollment:** 43 (ACTUAL)
- **Why stopped:** inadequate recruitment
- **Last updated:** 2018-02-05


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01990404

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01990404, "Efficacy of Premixed Nitrous Oxide and Oxygen in Elderly Patient With Out-of-hospital Severe Acute Pain". Retrieved via AI Analytics 2026-06-13 from https://api.ai-analytics.org/clinical/NCT01990404. Licensed CC0.

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