# Efficacy of Botox Injection of the Masticatory Muscles in Head &Neck Cancer Patients with Trismus After Radiotherapy

> **NCT06734598** · PHASE4 · RECRUITING · sponsor: **National Taiwan University Hospital** · enrollment: 120 (estimated)

## Conditions studied

- Trismus
- Head and Neck Cancer
- Radiation Therapy Recipient
- BOTOX

## Interventions

- **DRUG:** Echo-guided Botox injection
- **PROCEDURE:** echo-guided normal saline injection

## Key facts

- **NCT ID:** NCT06734598
- **Lead sponsor:** National Taiwan University Hospital
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2024-12-01
- **Primary completion:** 2025-11-01
- **Final completion:** 2026-02-01
- **Target enrollment:** 120 (ESTIMATED)
- **Last updated:** 2024-12-16


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT06734598

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT06734598, "Efficacy of Botox Injection of the Masticatory Muscles in Head &Neck Cancer Patients with Trismus After Radiotherapy". Retrieved via AI Analytics 2026-06-05 from https://api.ai-analytics.org/clinical/NCT06734598. Licensed CC0.

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