A Phase 3, Multi-Center Trial to Demonstrate the Safety and Efficacy of Repeat Treatment With PurTox® for the Treatment of Glabellar Rhytides ("Frown Lines")
试验速览
- 阶段
- 3 期
- 状态
- 已完成
- 入组人数
- 699
- 试验地点
- 1
- 主要终点
- Change in assessments of severity of glabellar rhytide by the investigator and the subject at maximum frown as a single composite effectiveness endpoint.
研究概览
简要总结
The overall purpose of this study is to evaluate the safety and effectiveness of repeat treatment of an intramuscular dose of Mentor Purified Toxin for the reduction of frown lines, compared with placebo.
详细描述
The purpose of this a randomized withdrawal Phase III, multi-center research study is to evaluate the safety and effectiveness of repeat treatment with an intramuscular dose of Mentor Purified Toxin in the reduction of glabellar rhytides (frown lines). Approximately 700 subjects will be enrolled at approximately 12 clinical sites in the U.S.A.
Effectiveness 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
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Triple (Participant, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •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;
- •In good physical and mental health as determined by the investigator based on medical history, physical examination, and/or clinical laboratory tests;
- •Noticeable presence of the glabellar rhytides for a period of 6 months or longer;
- •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
- •Capable of understanding and complying with the protocol and must have signed the informed consent document prior to performance of any study-related procedures.
排除标准
- •A history of psychiatric problems that, in the investigator's opinion, is severe enough potentially to interfere with subject outcomes;
- •A history of autoimmune disease, that, in the opinion of the investigator, might interfere with subject outcomes (e.g., osteoarthritis is not considered an exclusion criteria; however, subjects with dermatomyositis are not permitted to participate in this study);
- •A history or presence of clinically significant cardiovascular, respiratory, hepatic/biliary, renal, gastrointestinal, endocrinological, or neurological disorders constituting a possible risk factor that, in the investigator's opinion, is severe enough potentially to interfere with subject outcomes;
- •Inability to substantially efface glabellar lines by manually spreading skin apart;
- •Eyelid ptosis;
- •Myasthenia gravis (from medical history or diseases of neurotransmission);
- •Current history of facial nerve paralysis;
- •Concurrent dermatologic disease of the face in the glabellar area that is deemed by the investigator to make the subject an inappropriate candidate for the study;
- •Recent flu-like syndrome that, in the investigator's opinion, is severe enough potentially to interfere with subject outcomes;
- •Neuromuscular disorder that, in the investigator's opinion, is severe enough potentially to interfere with subject outcomes;
- •Active multisystems disease that, in the investigator's opinion, might influence the outcome measures or the safety of the subject;
- •Has any condition(s) that in the investigator's opinion would a) warrant exclusion from the study, or b) prevent the subject from completing the study;
- •Currently receiving aminoglycoside antibiotic therapy, curare-like drugs, quinidine, succinylcholine, polymyxins, anticholinesterases, magnesium sulfate, or lincosamides;
- •Has taken any investigational drug during the 30 days prior to screening visit;
- •Have had Botulinum Toxin treatments to the glabellar and/or forehead area during the 6 months prior to screening visit;
- •Have had dermal filler treatment to glabellar area during the 6 months prior to screening visit;
- •Female subjects who are pregnant or lactating. Female subjects who are of childbearing potential must have negative urine pregnancy test results prior to enrollment into the study. Such subjects, including peri-menopausal women who have had a menstrual period within one year, must be using appropriate birth control (see protocol/informed consent for description);
- •Unwilling or unable to comply with the protocol or to cooperate fully with the investigator and site personnel; and
- •Unable to understand verbal and/or written English or any other language in which a certified translation of the informed consent document is available.
研究组 & 干预措施
1
Mentor Purified Toxin Botulinum Toxin Type A - Part II ONLY. (Part I is Single Group and all participants receive active drug and are not randomized)
干预措施: Mentor Purified Toxin Botulinum Toxin Type A (Drug)
2
Preservative-free Saline - Part II ONLY. (Part I is Single Group and all participants receive active drug and are not randomized)
干预措施: Preservative-free Saline (Drug)
结局指标
主要结局
Change in assessments of severity of glabellar rhytide by the investigator and the subject at maximum frown as a single composite effectiveness endpoint.
时间窗: Day 30 post randomization
Measurement of the incidences of treatment-emergent adverse events, serious treatment-emergent adverse events, treatment-emergent laboratory abnormalities, and vital signs.
时间窗: Throughout
次要结局
- Change in assessments of severity of glabellar rhytide by the investigator and the subject at maximum frown.(Day 30 post-injection)
- Change in assessments of severity of glabellar rhytide by the investigator and the subject at rest.(Day 30 post randomization)
- Change in assessments of severity of glabellar rhytide by independent reviewers based on the photographs of the subject's glabellar lines at maximum frown.(Baseline and Day 30 post randomization)