Clinical Trial: Botulinum Toxin Type A Injection Sites for Oral Commissure Ptosis

U.S., June 16 -- ClinicalTrials.gov registry received information related to the study (NCT07646886) titled 'Botulinum Toxin Type A Injection Sites for Oral Commissure Ptosis' on June 05.

Brief Summary: This multicenter, prospective, randomized parallel-controlled, assessor-blinded clinical trial aims to address the core clinical pain point of lack of high-level evidence and non-standardized operation in injection site selection for BTX-A treatment of oral commissure ptosis. A total of 266 eligible subjects will be randomly assigned in a 1:1 ratio to receive either upper DAO or lower DAO BTX-A injection. The study will compare the clinical efficacy, time-effect characteristics and safety profiles of the two regimens, and conduct stratified...