A Clinical Evaluation of the Treatment of Lower Extremity Spider Veins Using a Dual Wavelength Laser Emitting 532 nm and 1064 nm Laser Energy
试验速览
- 阶段
- 4 期
- 状态
- 已完成
- 发起方
- 入组人数
- 20
- 试验地点
- 2
- 主要终点
- Mean Improvement of Lower Extremity Spider Veins Based on Blinded Photo Assessments
研究概览
简要总结
The purpose of this study is to evaluate the safety and effectiveness of a new laser for the removal of unsightly spider veins on the legs. The device used in this study is the Cutera Excel V laser, which is a dual wavelength 532 nm potassium titanyl phosphate (KTP) and 1064 nm neodymium-doped yttrium aluminum garnet (Nd:YAG) laser. The Excel V laser has received 510(k) clearance from the FDA, which means the FDA has approved the laser for dermatological and vascular conditions, like spider veins.
详细描述
Each subject will receive 532 nm KTP laser treatment for their lower extremity spider veins in at least 2, and up to 4, separate areas. Subjects will receive 2 laser treatments spaced 12 weeks apart. Subjects will be followed for 24 weeks (12 weeks after the final laser treatment). Efficacy will be evaluated by blinded independent physician assessment of improvement in treated spider veins using digital photographs taken at baseline and the final follow-up visit by a third-party medical photography service. In addition, efficacy will be evaluated by the Investigator's mean global assessment of improvement and the subject's mean assessment of improvement. Safety will be evaluated by continuous monitoring of adverse events (AEs) and measuring pain associated with laser treatment.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 21 Years 至 70 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Fitzpatrick Skin Type I - III
- •Having at least 2 separate areas measuring 5cm x 5cm of lower extremity spider veins
- •Having lower extremity spider veins less than 2.0mm in diameter, linear or branching, and red, pink, blue and/or purple in color, as assessed by the Investigator
- •Having lower extremity spider veins appropriate for laser treatment, as assessed by the Investigator
- •Subject must be able to read, understand and sign the Informed Consent Form
- •Subject must be willing and able to adhere to the treatment and follow-up schedule and post-treatment care instructions
- •Wiling to have limited sun exposure for the duration of the study, including the follow-up period
- •Willingness to have digital photographs taken of lower extremity spider veins
- •Agree not to undergo any other procedure for the treatment of lower extremity spider veins during the study
- •Willing to not take any 'prn' medications for aches and pains (such as Tylenol® or Advil®) on the days of the laser treatments
- •For female candidates - post-menopausal or surgically sterilized, or using a medically acceptable form of birth control at least 3 months prior to enrollment and during the entire course of the study
排除标准
- •Having received any prior laser treatment for lower extremity spider veins
- •Fitzpatrick Skin Type IV - VI
- •Having an infection, dermatitis or a rash in the treatment area
- •Having significant varicosities or perforator veins
- •History of keloid scarring, hypertrophic scarring or of abnormal wound healing
- •History of immunosuppression/immune deficiency disorders or currently using immunosuppressive medications
- •History of connective tissue disease, such as systemic lupus erythematosus or scleroderma
- •History of pigmentary disorders, particularly tendency for hyper- or hypo-pigmentation
- •Having a known anticoagulative condition or taking anticoagulation medications
- •History of thromboembolic disease, such as deep vein thrombosis (DVT)
- •History of seizure disorders due to light
- •Having a history of diseases stimulated by heat, such as recurrent herpes simplex in the treatment area, unless treatment is conducted following a prophylactic regimen
- •Having undergone any surgery in the treatment area within 6 months of treatment (or more if skin has not healed completely)
- •Suffering from significant concurrent illness, such as insulin-dependent diabetes (type I or II), peripheral vascular disease or peripheral neuropathy
- •Undergoing systemic chemotherapy for the treatment of cancer
- •Systemic use of isotretinoin (Accutane®) within 6 months of study participation
- •Any use of gold therapy for disorders such as rheumatologic disease or lupus
- •Excessively tanned in areas to be treated or unable/unlikely to refrain from tanning during the study
- •Participation in a study of another device or drug within three months prior to enrollment or during the study
- •As per the Investigator's discretion, any physical or mental condition which might make it unsafe for the subject to participate in this study
结局指标
主要结局
Mean Improvement of Lower Extremity Spider Veins Based on Blinded Photo Assessments
时间窗: 24 weeks (12 weeks post-final laser treatment)
A panel of independent physicians will assess before and after digital photographs of each treated area. The physicians will be blinded to the treatment parameters and to the temporal order of the before and after photographs. Each independent physician will be asked to select the baseline photograph for each treated area and then rate the degree of improvement using the following scale: * 0 = No Improvement (0%) * 1 = Mild Improvement (\< 25%) * 2 = Moderate Improvement (26 to 50%) * 3 = Significant Improvement (51 to 75%) * 4 = Very Significant Improvement (76 to 100%)
次要结局
- Mean Improvement of Lower Extremity Spider Veins Based on Blinded Photo Assessments(12 weeks (post-1st laser treatment))
- Percent of Subjects With "Significant" or "Very Significant" Improvement in Lower Extremity Spider Veins, as Assessed by the Treating Investigator.(24 weeks (12 weeks post-final laser treatment))
- Percent of Subjects With "Significant" to "Very Significant" Improvement of Lower Extremity Spider Veins, as Assessed by Subject.(24 weeks (12 weeks post-final laser treatment))
- Percent of Subjects Satisfied With Improvement of Treated Spider Veins.(24 weeks (12 weeks post-final laser treatment))
- Mean Pain Score Associated With Laser Treatment.(Day 0 (1st laser treatment))
- Mean Pain Score Associated With Laser Treatment(12 weeks (2nd laser treatment))