Geneva, March 23 -- International Clinical Trials Registry received information related to the study (ChiCTR2600119617) titled 'Evaluation of the therapeutic effect of botulinum toxin injection on frowning muscle using new ultrasound technology' on March 1.

Study Type: Observational study

Study Design: Case-Control study

Primary Sponsor: PEKING UNIVERSITY SHENZHEN HOSPITAL

Condition: Botulinum toxin injection for treating frown lines

Intervention: Case group:None

Recruitment Status: Recruiting

Phase: N/A

Date of First Enrollment: 2026-03-01

Target Sample Size: Case group:35;Control group:35;

Countries of Recruitment: China

To know more, visit https://www.chictr.org.cn/showproj.html?proj=294992

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