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Active, Not Recruiting

NCT Number: NCT01976247

A Pilot Study Testing a Noninvasive Cryolipolysis Device Versus a High Intensity Focused Ultrasound Device for Fat Reduction

The purpose of this study is to compare the safety and effectiveness of the Zeltiq System and LipoSonix System for fat reduction and improving body shape.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

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Key information

Conditions

Age range

30 year–65 year

Sex eligibility

Female

Study type

Interventional

Phase

Phase 1

Primary location

Northwestern University Department of Dermatology

Chicago, Illinois, 60611, United States

About this study

At baseline visit, subjects who meet inclusion and exclusion criteria will be enrolled. Subjects will be randomly assigned to receive Zeltiq treatment to either their right or left flank The contralateral flank will receive Liposonix treatment. A total of three identical treatments will be completed monthly for 3 consecutive months. Subjects will return 4 weeks following the last treatment for follow up photography, measurements, and assessments. This study is a pilot study designed to determine feasibility of these procedures.

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Female subjects ages 30-65 years old.
  • Body mass index (BMI) between 18 and 29.99. (BMI is defined as weight in pounds multiplied by 703 divided by the square of the height in inches).
  • Subjects are in good health.
  • Willing and able to abstain from partaking in any treatment other than the study procedure (existing or new) to promote body contouring and/or weight loss during the course of study participation.
  • Subjects agree to maintain their weight (i.e. within 5 pounds) by not making any changes to diet or lifestyle during the study.
  • The subjects have the willingness and the ability to understand and provide informed consent for the use of their tissue and communicate with the investigator.

Exclusion criteria

  • Pregnant or lactating or intends to become pregnant in the next 9 months.
  • Unable to understand the protocol or to give informed consent.
  • Any previous and/or pending procedures at the treatment area or that may likely affect the treatment area.
  • Pending and/or anticipated major change in diet or exercise pattern in the six weeks following the last treatment or who has taken diet pills within the last 6 months..
  • History of asthma or chronic obstructive pulmonary diseases.
  • Active skin disease or skin infection in the treatment area.
  • Bleeding tendency or coagulopathy.
  • Subjects who are allergic to lidocaine.
  • Any other condition that would, in the professional opinion of the investigator, potentially affect response or participation in the clinical study, or would pose as an unacceptable risk to the subject.

Treatment and study plan

High Intensity Focused Ultrasound Device

Device

Other names: Liposonix

Noninvasive Cryolipolysis Device

Device

Other names: Zeltiq

Primary outcomes

  1. Change in best overall cosmetic appearance (right side or left side better)rated by a blinded dermatologist from baseline to week 12

    Time frame: 1 hour at baseline and week 12

    The primary outcome was a blinded rating of the treatment area (Noninvasive Cryolipolysis Device vs. a High Intensity Focused Ultrasound Device) with the best cosmetic appearance. A dermatologist will blindly evaluate the treated areas of each side from live subjects at baseline and on the final follow up visit (week 12).

Sponsors and collaborators

Lead sponsor

Northwestern University

Other

Registry information

Official study title

Pilot Study Comparing the Effectiveness of a Noninvasive Cryolipolysis Device vs. a High Intensity Focused Ultrasound Device for Fat Reduction: A Randomized Control Trial

Important dates

Study start
2013
Primary completion
2027
Study completion
2027
First posted
Nov 5, 2013
Registry last updated
Jul 1, 2026

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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