# A Pilot Study of Needle Size and Pain Perception With Botulinum Toxin A Injections

> **NCT01981174** · NA · COMPLETED · sponsor: **Northwestern University** · enrollment: 20 (actual)

## Conditions studied

- Pain

## Interventions

- **PROCEDURE:** 30-gauge needle
- **PROCEDURE:** 32-gauge needle

## Key facts

- **NCT ID:** NCT01981174
- **Lead sponsor:** Northwestern University
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2013-11
- **Primary completion:** 2014-01
- **Final completion:** 2014-01
- **Target enrollment:** 20 (ACTUAL)
- **Last updated:** 2021-12-06


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01981174

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01981174, "A Pilot Study of Needle Size and Pain Perception With Botulinum Toxin A Injections". Retrieved via AI Analytics 2026-06-03 from https://api.ai-analytics.org/clinical/NCT01981174. Licensed CC0.

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