# Higher Doses of Botulinum Toxin in the Treatment of Gummy Smile

> **NCT05127018** · PHASE1,PHASE2 · COMPLETED · sponsor: **Peking University** · enrollment: 33 (actual)

## Conditions studied

- Smiling
- Botulinum Toxins, Type A

## Interventions

- **DRUG:** injection of Botulinum type A

## Key facts

- **NCT ID:** NCT05127018
- **Lead sponsor:** Peking University
- **Sponsor class:** OTHER
- **Phase:** PHASE1,PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2019-11-20
- **Primary completion:** 2020-08-20
- **Final completion:** 2021-10-20
- **Target enrollment:** 33 (ACTUAL)
- **Last updated:** 2023-04-26


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05127018

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05127018, "Higher Doses of Botulinum Toxin in the Treatment of Gummy Smile". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT05127018. Licensed CC0.

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