Completed NA INTERVENTIONAL 2-arm NCT04527744

Application of Botulinum Toxin at the Yonsei Point for the Treatment of Gummy Smile

Application of Botulinum Toxin at the Yonsei Point for the Treatment of Gummy Smile: a Randomized Controlled Trial

Sponsor: Peking University

Conditions Botulinum Toxins, Type A Smiling

Interventions the injection of onabotulinumtoxinA at different point

Updated 6 times since 2020 Last updated: Nov 8, 2021 Started: Oct 17, 2020 Primary completion: Nov 17, 2020 Completion: Oct 17, 2021

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This NA trial investigates Botulinum Toxins, Type A and Smiling and is currently completed. Peking University leads this study, which shows 6 recorded versions since 2020 — indicating limited longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

Change History

6 versions recorded

Sep 2024 — Present [monthly]

Completed NA
Jul 2024 — Sep 2024 [monthly]

Completed NA
Dec 2021 — Jul 2024 [monthly]

Completed NA

Status: Active Not Recruiting → Completed · Phase: PHASE4 → NA
Apr 2021 — Dec 2021 [monthly]

Active Not Recruiting PHASE4

Status: Not Yet Recruiting → Active Not Recruiting
Jan 2021 — Apr 2021 [monthly]

Not Yet Recruiting PHASE4

▶ Show 1 earlier version

Sep 2020 — Jan 2021 [monthly]

Not Yet Recruiting PHASE4

First recorded

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Peking University

Data source: Peking University

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

• Beijing, China