Outer Thigh Study With Varied Treatment Parameters

May 16, 2025 updated by: Zeltiq Aesthetics

Non-Invasive Fat Layer Reduction in the Lateral Thighs With a Cryolipolysis System Using Varied Treatment Parameters

The purpose of this study is to compare the performance of the Zeltiq CoolSculpting System using various treatment parameters for non-invasive reduction of subcutaneous fat in the lateral thighs.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The purpose of this study is to compare the performance of a cryolipolysis system using various treatment parameters for non-invasive reduction of subcutaneous fat in the lateral thighs.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
40

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • Marina Del Rey, California, United States, 90292
        • Marina Plastic Surgery
      • Pleasanton, California, United States, 94588
        • Innovation Research Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria

  1. Male or female subjects > 18 years of age and < 65 years of age.
  2. Subject has clearly visible fat on the intended treatment area (lateral thighs), which in the investigator's opinion, may benefit from the treatment.
  3. Subject has not had weight change exceeding 10 pounds in the preceding month.
  4. 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.
  5. Subject agrees to maintain his/her weight (i.e., within 5 pounds) by not making any major changes in their diet or lifestyle during the course of the study.
  6. Subject has read and signed a written informed consent form.

Exclusion Criteria

  1. Subject has had a surgical procedure(s) in the area of intended treatment.
  2. Subject has had an invasive fat reduction procedure (e.g., liposuction, mesotherapy) in the area of intended treatment.
  3. Subject has had a non-invasive fat reduction and/or body contouring procedure in the area of intended treatment within the past 2 months.
  4. Subject has significant asymmetry between the lateral thighs.
  5. Subject needs to administer, or has a known history of subcutaneous injections into the area of intended treatment (e.g., heparin, insulin) within the past month.
  6. Subject has a known history of cryoglobulinemia, cold urticaria, or paroxysmal cold hemoglobinuria.
  7. 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.
  8. Subject has a history of bleeding disorder or is taking any medication that in the investigator's opinion may increase the subject's risk of bruising.
  9. Subject is taking or has taken diet pills or supplements within the past month.
  10. 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).
  11. Subject has an active implanted device such as a pacemaker, defibrillator, or drug delivery system
  12. Subject is pregnant or intending to become pregnant during the study period (in the next 5 months).
  13. Subject is lactating or has been lactating in the past 6 months.
  14. Subject is unable or unwilling to comply with the study requirements.
  15. Subject is currently enrolled in a clinical study of any other unapproved investigational drug or device.
  16. 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.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Lateral Thigh Treatment Group
All subjects were treated on both thighs with the CoolSculpting System. One lateral thigh was treated using a protocol-defined temperature for 120 minutes. The contralateral thigh was treated at a protocol defined temperature for 60 minutes for 18 subjects. Twenty-two subjects were treated on the contralateral outer thigh with a 3rd protocol-defined temperature for 60 minutes.
Device: The Zeltiq CoolSculpting System
Non-invasive cooling is applied to the treatment area with a defined cooling rate and duration.
Other Names:
  • Cryolipolysis

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Safety of the Zeltiq Device
Time Frame: Time of enrollment though16 weeks post-treatment (approximately 5 months)
The number of device- or procedure-related adverse events will be tabulated from the time of enrollment through the 16 week follow-up visit.
Time of enrollment though16 weeks post-treatment (approximately 5 months)
Safety of the Zeltiq Device
Time Frame: From enrollment through 16 week follow-up (approximately 5 months)
The number of unanticipated adverse device effects (UADEs) will be tabulated.
From enrollment through 16 week follow-up (approximately 5 months)
Percentage of Pre-treatment Images Correctly Identified.
Time Frame: Baseline and 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. Criteria for evaluable photos for the purposes of the independent review: subject completed treatment regimen; subject has complete set of baseline photos; subject has a complete set of post-treatment photos; photos were taken using Zeltiq standard procedure. The expected success rate is 80%.
Baseline and 16 weeks post-treatment

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in the Fat Layer of the Treated Area as Measured by Ultrasound
Time Frame: 16 weeks 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 adjacent untreated control area. The Sponsor's standardized techniques for obtaining ultrasound imaging will be used. Overall fat layer thickness changes were normalized for each subject by subtracting the change in control (untreated area) from the change in treated area to remove the influence of weight variations. 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. Results indicate the mean fat layer reduction in mm.
16 weeks post-treatment
Subject Satisfaction
Time Frame: 16-weeks post treatment
Subject satisfaction with the Zeltiq procedure as determined by the results of a subjects satisfaction questionnaire at the 16 week follow up visit. The questionnaire is composed of a 5-point Likert scale questions, as well as free text responses. Subjects will be asked to determine overall satisfaction with the treatment. The choices will be 1) very unsatisfied; 2) somewhat unsatisfied; 3) neither unsatisfied or satisfied; 4) somewhat satisfied; 5) very satisfied.
16-weeks post treatment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Zeltiq Aesthetics

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Eric Bachelor, MD, Innovation Research Center

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 4, 2014

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 21, 2014

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 21, 2014

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 4, 2014

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 4, 2014

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 7, 2014

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 21, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 16, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • ZA14-001

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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