Feasibility Study: Histological Characterization of Dermal and Subdermal Thermal Coagulation Points in Rhytidectomy Patients After Treatment With the Ulthera® System
试验速览
- 阶段
- 不适用
- 状态
- 终止
- 发起方
- Ulthera, Inc
- 入组人数
- 2
- 试验地点
- 2
- 主要终点
- To determine the depth of focused thermal injury and thermal injury zone dimensions.
研究概览
简要总结
Up to 6 subjects will be enrolled. Subjects who have already chosen to have a surgical facelift procedure will be enrolled. Subjects will receive selective Ulthera® ultrasound exposures in the pre-auricular regions. Subject will return for a follow-up visit up to 48 hours post-treatment, on the day of their rhytidectomy. Study images will be obtained pretreatment, immediately post-treatment, and at the follow-up visit.
详细描述
This study is a prospective, single-center clinical trial. Subjects will be enrolled at the investigator's discretion if they meet inclusion/ exclusion criteria and provide written informed consent. Enrolled subjects will be treated with an assigned transducer based on their order of enrollment. At the study follow-up visit, subjects will undergo resection of the treated tissue for histological analysis prior to their planned rhytidectomy procedure.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Other
- 盲法
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 30 Years 至 65 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Male or female, age 30 to 65 years scheduled for rhytidectomy.
- •Subject in good health.
- •Understands and accepts the obligation not to undergo any other procedures in the areas to be treated.
- •Willingness and ability to comply with protocol requirements, including returning for follow-up visits and abstaining from exclusionary procedures for the duration of the study.
- •Subjects of childbearing potential must have a negative urine pregnancy test result and must not be lactating at Visit 1 and be willing and able to use an acceptable method of birth control (e.g., barrier methods used with a spermicidal agent, hormonal methods, IUD, surgical sterilization, abstinence) during the study. Women will not be considered of childbearing potential if one of the following conditions is documented on the medical history: a) Postmenopausal for at least 12 months prior to study; b) Without a uterus and/or both ovaries; or c) A bilateral tubal ligation at least six months prior to study enrollment.
排除标准
- •Presence of an active systemic or local skin disease that may affect wound healing.
- •Severe solar elastosis.
- •Significant scarring in areas to be treated.
- •Open wounds or lesions in the area to be treated.
- •Severe or cystic acne on the area to be treated.
- •Presence of a metal stent or implant in the facial area to be treated.
- •Inability to understand the protocol or to give informed consent.
研究组 & 干预措施
Subject 1
Ulthera treatment will be administered to both pre-auricular regions using a 4 MHz, 4.5mm depth transducer at 1.2 Joules and 30 Watts on the Left side versus 0.9 Joules and 30 Watts on the Right side.
干预措施: Ulthera Treatment (Device)
Subject 2
Ulthera treatment will be administered to both pre-auricular regions using a 7 MHz, 3.0mm depth transducer at 1.05 Joules and 25 Watts on the Left side versus 0.75 Joules and 25 Watts on the Right side.
干预措施: Ulthera Treatment (Device)
Subject 3
Ulthera treatment will be administered to both pre-auricular regions using a 7 MHz, 3.0mm depth transducer at 0.45 Joules and 15 Watts on the Left side versus 0.35 Joules and 14 Watts on the Right side.
干预措施: Ulthera Treatment (Device)
Subject 4
Ulthera treatment will be administered to both pre-auricular regions using a 10 MHz, 1.5mm depth transducer at 0.25 Joules and 5 Watts on the Left side versus 0.18 Joules and 5 Watts on the Right side.
干预措施: Ulthera Treatment (Device)
Subject 5
Ulthera treatment will be administered to both pre-auricular regions using a 4 MHz, 4.5mm depth transducer at 0.9 Joules and 30 Watts on the Left side versus 7 MHz, 4.5mm 0.9 Joules and 25 Watts on the Right side.
干预措施: Ulthera Treatment (Device)
Subject 6
Ulthera treatment will be administered to both pre-auricular regions using a 7 MHz, 3.0mm transducer at 0.35 and 14 Watts, and a 4 MHz, 4.5mm depth transducer at 0.9 Joules and 30 Watts on the Left side versus a 7 MHz, 3.0mm depth and 4.5mm depth transducer at 2.0 Joules and 40 Watts on the Right side.
干预措施: Ulthera Treatment (Device)
结局指标
主要结局
To determine the depth of focused thermal injury and thermal injury zone dimensions.
时间窗: 48 hours post-treatment
Post-treatment, treated tissue will be resected for histological analysis.
次要结局
未报告次要终点