The Efficacy and Safety Study of Protoxin Versus Botox® in Subjects With Moderate to Severe Glabellar Lines

A Multicenter, Double-blind, Randomized, Parallel, Active-controlled, Phase III Clinical Trial to Compare the Efficacy and Safety of Protoxin Versus Botox® in Subjects With Moderate to Severe Glabellar Lines

This study will be conducted in Phase Ⅲ clinical trials. In Phase Ⅲ, subjects with moderate to severe glabellar lines are enrolled and those who are judged to be eligible for this study will be injected with the "PROTOXIN" at a total of 20U(4U/0.1mL each) in five sites of the glabellar lines. The investigational product is administered once, maintaining double-blind for a total of 16 weeks of observation. Thereafter, efficacy and safety are assessed by comparing with BOTOX® after regular visits conducted at 4,8,12 and 16 weeks.

Study Overview

• Status: Completed
• Conditions: Glabellar Frown Lines
• Intervention / Treatment: Biological: PROTOXIN; Biological: Botox®

• Study Type: Interventional
• Enrollment (Actual): 269
• Phase: Phase 3

Contacts and Locations

Study Locations

• Korea, Republic of
  • Dongdaemun-gu
    • Seoul, Dongdaemun-gu, Korea, Republic of
      • Kyung Hee University Hospital
  • Gwangjin-gu
    • Seoul, Gwangjin-gu, Korea, Republic of
      • Chung-Ang University Hospital
    • Seoul, Gwangjin-gu, Korea, Republic of
      • Konkuk University Hospital
  • Nowon-gu
    • Seoul, Nowon-gu, Korea, Republic of
      • Nowon Eulji Medical Center
  • Seo-gu
    • Pusan, Seo-gu, Korea, Republic of
      • Pusan National University Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 19 years to 65 years (Adult, Older Adult)
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• Men and women aged between 19 to 65 years old
• Subjects attaining ≥grade 2 (moderate) in the investigator's rating of the severity of glabella lines at maximum frown
• Those who understand and comply with clinical trial procedures and visit schedules
• Subjects who voluntarily decides to participate and signs the consent form after hearing the explanation of this clinical trial.

Exclusion Criteria

• Those with or accompanied by the following diseases at the time of screening

  1. Subjects with Neuromuscular Junction Disorder that may affect neuromuscular action
  2. Subjects with previous history of weakness or paralysis in the forehead area
  3. Subjects with infection, skin disorders, or scars at the glabellar region
• Subjects with wrinkles that physically prevent wrinkles from spreading, such as when wrinkles are not spread out by hand
• Subjects who is administering a drug with muscle relaxation within four weeks of screening.
• Subjects who have taken Aspirin and NSAIDs within 7 days prior to administration of the investigational drug
• Subjects with surgical history who may affect wrinkles around the forehead or glabellar region
• Subjects who have planned facial cosmetic procedure during the clinical trial
• Subjects who have been administered similar drugs within 12 weeks (Botulinum toxin type A) or within 16 weeks (Botulinum toxin type B) before screening
• Subjects who are expected to administer botulinum toxin preparations other than Investigational product during the clinical trial period
• Subjects with allergy or hypersensitivity to the botulinum toxin or their components
• A history of drug or alcohol abuse
• Anxiety disorders or other significant mental disorders based on the judgment of an investigator
• Fertile women and men who have plans to conceive during pregnancy, breastfeeding and clinical trials or who do not agree to appropriate contraception
• Pregnant or lactating women
• Subjects with severe comorbidities or acute diseases that does not suitable for participation in clinical trials
• Those who participated in other clinical trials/clinical medical device trials within 30 days prior to screening and who received Investigational product/medical devices/procedures, or those who had less than 5 times the half-life of the Investigational product
• Subjects who are not eligible for this study based on the judgment of an investigator

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: PROTOXIN(Phase Ⅲ); PROTOXIN will be injected to 5 glabellar lines (Each 4U/0.1mL, Total 20U/0.5mL)	Biological: PROTOXIN; Botulinum toxin Type A
Active Comparator: Botox® (Phase Ⅲ); Botox® will be injected to 5 glabellar lines (Each 4U/0.1mL, Total 20U/0.5mL).	Biological: Botox®; Botulinum toxin Type A

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Proportion of subjects achieving at least a 2-grade improvement from baseline on the facial wrinkle scale of GL at maximum frown at Week 4	The investigator and participant evaluate the participant's GL severity using a 4-grade scale (0 to 3) where 0=none and 3 = severe	4 weeks post injection compared to baseline

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Investigator-rated improvement rate of glabellar lines at maximum frown	The investigator and participant evaluate the participant's GL severity using a 4-grade scale (0 to 3) where 0=none and 3 = severe	Week 8, 12, 16
Participant-rated improvement rate of glabellar lines at maximum frown	The investigator and participant evaluate the participant's GL severity using a 4-grade scale (0 to 3) where 0=none and 3 = severe	Week 4, 8, 12, 16
Investigator-rated improvement rate of glabellar lines at rest	The investigator and participant evaluate the participant's GL severity using a 4-grade scale (0 to 3) where 0=none and 3 = severe	Week 4, 8, 12, 16
Participant-rated improvement rate of glabellar lines at rest	The investigator and participant evaluate the participant's GL severity using a 4-grade scale (0 to 3) where 0=none and 3 = severe	Week 4, 8, 12, 16
Independent photo evaluator-rated improvement rate of glabellar lines at frown	The investigator and participant evaluate the participant's GL severity using a 4-grade scale (0 to 3) where 0=none and 3 = severe	Week 4, 8, 12, 16
Independent photo evaluator-rated improvement rate of glabellar lines at rest	The investigator and participant evaluate the participant's GL severity using a 4-grade scale (0 to 3) where 0=none and 3 = severe	Week 4, 8, 12, 16
Participant-rated satisfaction after treatment	Participant evaluate the level of satisfaction by Patient Satisfaction(PS) 7-grade score(1 to 7) where 1 = very dissatisfied and 7 = very satisfied	Week 4, 8, 12, 16

Collaborators and Investigators

• Sponsor: Protox Inc.
• Investigators: Principal Investigator: Kim Beomjoon, Chung-Ang University Hospital, Chung-Ang University College of Medicine; Principal Investigator: Lee Yangwon, Konkuk University Medical Center; Principal Investigator: Kim Moonbeom, Pusan National University Hospital; Principal Investigator: Lee Jonghoon, Nown Eulji Medical Center, Eulji University; Principal Investigator: Shin Minkyung, KyungHee University Medical Center

Study record dates

Study Major Dates

• Study Start (Actual): March 6, 2023
• Primary Completion (Actual): June 20, 2023
• Study Completion (Actual): October 6, 2023

Study Registration Dates

• First Submitted: April 19, 2022
• First Submitted That Met QC Criteria: May 2, 2022
• First Posted (Actual): May 6, 2022

Study Record Updates

• Last Update Posted (Estimated): November 16, 2023
• Last Update Submitted That Met QC Criteria: November 15, 2023
• Last Verified: March 1, 2023

More Information

Terms related to this study

• Keywords: Botulinum toxin type A; Botulinum toxin; Glabellar Lines
• Other Study ID Numbers: PT_BTA_P3_21

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No