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Completed

NCT Number: NCT01517659

Non-Invasive Reduction of Fat in the Inner Thighs

Evaluate the safety and efficacy of non-invasive fat reduction in the inner thighs with the ZELTIQ CoolSculpting System.

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Key information

Conditions

Body Fat Disorder

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Laser & Skin Surgery Center of Northern California, Sacramento, California, United States

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About this study

The Zeltiq CoolSculpting System, which reduces subcutaneous fat in specific areas of the body, will be studied for safety and efficacy when used in the inner thigh.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Male or female subjects > 18 years of age and < 65 years of age.
  • Subject has clearly visible fat on the inner thighs and in the investigator's opinion, may benefit from the treatment.
  • Subject has not had weight change exceeding 10 pounds in the preceding month.
  • Subject with body mass index (BMI) up to 30. [BMI is defined as weight in pounds multiplied by 703 divided by the square of the height in inches.]
  • Subject agrees to maintain his/her weight (i.e., within 5 pounds) by not making any major changes in his/her diet or lifestyle during the course of the study.
  • Subject has read and signed a written informed consent form.

Exclusion criteria

  • Subject has had a surgical procedure(s) in the area of intended treatment.
  • Subject has had an invasive fat reduction procedure (e.g., liposuction, abdominoplasty, mesotherapy) in the area of intended treatment.
  • Subject has had a non-invasive fat reduction and/or body contouring procedure in the area of intended treatment within the past 6 months.
  • Subject needs to administer, or has a known history of, subcutaneous injections (e.g., heparin, insulin) into the area of intended treatment within the past month.
  • Subject has a known history of cryoglobulinemia, cold urticaria, or paroxysmal cold hemoglobinuria.
  • Subject has a known history of Raynaud's disease, or any known condition with a response to cold exposure that limits blood flow to the skin.
  • Subject has a history of a bleeding disorder or is taking any medication that in the investigator's opinion may increase the subject's risk of bruising.
  • Subject is taking or has taken diet pills or supplements within the past month.
  • Subject has any dermatological conditions, such as moderate to excessive skin laxity, or scars in the location of the treatment sites that may interfere with the treatment or evaluation (stretch marks is not an exclusion).
  • Subject has an active implanted device such as a pacemaker, defibrillator, or drug delivery system
  • Subject is pregnant or intends to become pregnant in the next 8 months.
  • Subject is lactating or has been lactating in the past 6 months.
  • Subject is unable or unwilling to comply with the study requirements.
  • Subject is currently enrolled in a clinical study of any other unapproved investigational drug or device.
  • Any other condition or laboratory value that would, in the professional opinion of the investigator, potentially affect the subject's response or the integrity of the data, or would pose an unacceptable risk to the subject.

Treatment and study plan

The ZELTIQ CoolSculpting System

Device

Non-invasive cooling is applied to the treatment area with a defined cooling rate and duration.

Other names: Cryolipolysis

Primary outcomes

  1. Percentage of Pre-Treatment Images Correctly Identified by Reviewers

    Time frame: 16 weeks post-treatment

    Change in the treated vs. untreated areas will be assessed by observation of changes in surface contour and/or fat volume by an independent photo review of pre-treatment and post-treatment images of the treated areas. Reviewers will be practicing dermatologists or plastic surgeons. All reviewers will be blinded to post-treatment vs. baseline untreated area. The order in which images will be presented will be randomized; for each subject placement of the baseline, pre-treatment image will be randomized for each pair of subject images. Reviewers will be asked to select the baseline photos for each subject photo series and record selections on a data collection form. The expected success rate is at least 80% correct identification of pre-treatment images and the majority of physician reviewers (2 out 3) correctly identify 75% of the pre-treatment images.

  2. Safety of the CoolSculpting Device and/or Procedure

    Time frame: Enrollment through 16 weeks post-treatment

    The number of device- or procedure related adverse events will be tabulated. Adverse event data are collected continuously throughout the study period from the time of enrollment through the 16 week follow-up visit. At the time of an AE report, each study investigator determines the relationship to the investigational device or the study procedure.

Secondary outcomes

  1. Subject Satisfaction

    Time frame: 16 weeks post-treatment

    Subject satisfaction as assessed by questionnaires administered at 16 weeks post-treatment.

  2. Reduction in Fat Layer Thickness in the Treated Area as Measured by Ultrasound

    Time frame: 16 week-post-treatment

    Change in the fat layer thickness will be calculated by comparison of pre-treatment and 16 week post-treatment ultrasound measurements taken in the area treated with the device, and in the untreated lateral thigh control area. The Sponsor's standardized techniques for obtaining ultrasound imaging will be used. Overall fat layer thickness changes will be normalized for each subject by subtracting the change in the control area from the change in treated area to remove the influence of weight variations. This result is considered the treatment effect. Success is defined as, on average, at least a 1mm or greater reduction in fat layer thickness for the treated region as compared to the untreated control region. Results indicate the fat layer reduction in millimeters.

Sponsors and collaborators

Lead sponsor

Zeltiq Aesthetics

Industry

Registry information

Official study title

Non-Invasive Reduction of Fat in the Inner Thighs With the Zeltiq Coolsculpting System

Important dates

Study start
2012
Primary completion
2014
Study completion
2014
First posted
Jan 25, 2012
Registry last updated
Dec 3, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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