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Safety and Efficacy Study of PurTox® Botulinum Toxin Type A to Treat Frown Lines Between the Eyebrows

A Phase 3, Multi-Center, Randomized, Double-Blind, Placebo-Controlled, Two-Arm, Single-Dose Pivotal Trial to Demonstrate the Safety and Efficacy of PurTox® for the Treatment of Glabellar Rhytides (Frown Lines)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00752297
Acronym
PT-03a
Enrollment
402
Registered
2008-09-15
Start date
2007-06-30
Completion date
2008-05-31
Last updated
2011-09-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Glabellar Rhytides

Keywords

Botulinum Toxin Type A, Botulinum Toxin, Glabellar Rhytides, Rhytides, Frown Lines, Neuromuscular Agents, Neurotoxin, Forehead, Eyebrow, Wrinkle

Brief summary

The overall purpose of this study is to evaluate the safety and effectiveness of an intramuscular dose of Mentor Purified Toxin for the reduction of frown lines, compared with placebo.

Detailed description

This is a Phase 3, multi-center, randomized, double-blind, placebo-controlled, two-arm, single-dose study to evaluate the safety and efficacy of Mentor Purified Toxin for the treatment of glabellar rhytides. Approximately 400 subjects will be enrolled in the study. The subjects will be randomized 3:1 (300 Mentor Purified Toxin: 100 placebo) to receive either intramuscular injections of 30 U of Mentor Purified Toxin or placebo (preservative-free saline). Injected subjects will be observed for 180 days of post treatment follow-up. Follow-up clinic visits are scheduled for post treatment days 3, 7, 14, 30, 60, 90, 120, 150, and 180. The study will be conducted at up to ten clinical sites. Safety, tolerability, clinical efficacy, onset and duration of effect will be studied during the study The effectiveness of Mentor Purified Toxin will be determined by the degree of frown line reduction, during maximum forced frown and at rest (neutral expression): * as assessed live by the study doctor, * as assessed live by the subject, and * as assessed by an independent reviewer based on subject photographs Frown lines are graded on level of severity based on this scale: Severity * Minimal (0) * Mild (1) * Moderate (2) * Severe (3)

Interventions

Subjects will receive five 0.1 mL intramuscular injections at the Day 0 Treatment Visit: two in each corrugator and one in the procerus muscle. The total treatment dose (sum of the five injections) to be administered will be 0.5 mL of the placebo (preservative-free saline).

DRUGMentor Purified Toxin

All subjects will receive five 0.1 mL intramuscular injections (two in each corrugator and one in the procerus muscle) at each Treatment Visit. The total treatment dose (sum of the five injections) to be administered will be 30 U of PurTox. Subjects will have many Treatment Visits throughout the course of the three-year study.

Sponsors

Quintiles, Inc.
CollaboratorINDUSTRY
Mentor Worldwide, LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Male or female subjects who are 18 years of age or older (subjects should have an interest in the effacement of glabellar rhytides) with or without previous botulinum Toxin Type A exposure; 2. In good physical and mental health as determined by the investigator based on medical history, physical examination, and/or clinical laboratory tests; 3. Noticeable presence of the glabellar rhytides for a period of 6 months or longer; 4. Score at least a 2 (moderate severity) at baseline screening on the investigator's and subject's assessments (reference photographs provided) at forced frown; and 5. Capable of understanding and complying with the protocol and must have signed the informed consent document prior to performance of any study-related procedures.

Exclusion criteria

1. History of psychiatric problems that, in the investigator's opinion, is severe enough potentially to interfere with subject outcomes; 2. History of autoimmune disease, that, in the opinion of the investigator, might interfere with subject outcomes (e.g., osteoarthritis is not considered an

Design outcomes

Primary

MeasureTime frame
Degree of glabellar rhytide reduction assessed by the investigator and the subject at maximum frown as a single composite effectiveness endpoint.Day 30 post-injection
Measurement of the incidences of treatment-emergent adverse events, serious treatment-emergent adverse events, treatment-emergent laboratory abnormalities, and vital signs.Throughout

Secondary

MeasureTime frame
Degree of glabellar rhytide reduction assessed by the investigator and the subject at maximum frown.Days 3, 7 and 30 post-injection
Degree of glabellar rhytide reduction assessed by the investigator and the subject at rest.Day 30 Post-injection
Degree of glabellar rhytide reduction assessed by independent reviewers based on photographs of the subject's glabellar lines at maximum frown.Baseline and Day 30 post-injection
Explore the global satisfaction of the subject with the treatment.Day 30 post-injection

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026