# Trip-Tox, Effectiveness of Triptans Before and After Onabotulinumtoxin A Treatment in Chronic Migraine

> **NCT04871152** · — · UNKNOWN · sponsor: **Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau** · enrollment: 100 (estimated)

## Conditions studied

- Chronic Migraine

## Interventions

- **DRUG:** OnabotulinumtoxinA

## Key facts

- **NCT ID:** NCT04871152
- **Lead sponsor:** Fundació Institut de Recerca de l'Hospital de la Santa Creu i Sant Pau
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2021-03-25
- **Primary completion:** 2022-09-25
- **Final completion:** 2022-09-25
- **Target enrollment:** 100 (ESTIMATED)
- **Last updated:** 2021-10-04


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04871152

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04871152, "Trip-Tox, Effectiveness of Triptans Before and After Onabotulinumtoxin A Treatment in Chronic Migraine". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT04871152. Licensed CC0.

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