# Effectiveness of Nitrous Oxide 50% for Reducing Pain and Distress Associated with Needle-stick in Children

> **NCT03342079** · NA · WITHDRAWN · sponsor: **Boston Children's Hospital**

## Conditions studied

- Local Anesthetic Efficacy

## Interventions

- **DRUG:** Local Anesthetics,(lidocaine 70 mg/tetracaine 70 mg topical patch; Synera)
- **DRUG:** Placebos

## Key facts

- **NCT ID:** NCT03342079
- **Lead sponsor:** Boston Children's Hospital
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2014-03
- **Primary completion:** 2014-12
- **Final completion:** 2014-12
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** Lack of funding
- **Last updated:** 2025-03-11

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03342079

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03342079, "Effectiveness of Nitrous Oxide 50% for Reducing Pain and Distress Associated with Needle-stick in Children". Retrieved via AI Analytics 2026-05-25 from https://api.ai-analytics.org/clinical/NCT03342079. Licensed CC0.

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