# (Botox) Mechanisms of Action in Altering the Molecular Environment in Which Pain Fibers Exist

> **NCT03381261** · PHASE4 · COMPLETED · sponsor: **Massachusetts General Hospital** · enrollment: 37 (actual)

## Conditions studied

- Migraine

## Interventions

- **DRUG:** Botulinum toxin type A

## Key facts

- **NCT ID:** NCT03381261
- **Lead sponsor:** Massachusetts General Hospital
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2017-12-01
- **Primary completion:** 2023-08-01
- **Final completion:** 2023-12-01
- **Target enrollment:** 37 (ACTUAL)
- **Last updated:** 2025-03-24

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03381261

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03381261, "(Botox) Mechanisms of Action in Altering the Molecular Environment in Which Pain Fibers Exist". Retrieved via AI Analytics 2026-06-09 from https://api.ai-analytics.org/clinical/NCT03381261. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*