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CoolSculpting and RF for the Submental

A Feasibility Study to Explore the Safety and Efficacy of Cryolipolysis Followed by Radiofrequency Treatment for Submental and Submandibular Contouring

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03873779
Acronym
CRT
Enrollment
8
Registered
2019-03-13
Start date
2018-12-18
Completion date
2019-06-18
Last updated
2025-03-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Body Fat Disorder

Brief summary

The purpose of this study is to evaluate the safety and efficacy of sequential use of CoolSculpting (Cryolipolysis) and radiofrequency treatment of the submental and submandibular area.

Interventions

Participants received cryolipolysis treatment in submental and submandibular areas using the CoolSculpting System and CoolMini applicator for fat layer reduction on Day 0, which was followed with a radiofrequency treatment performed 12 weeks after CoolSculpting.

Sponsors

Zeltiq Aesthetics
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
22 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Male or female subjects ≥22 years of age and ≤65 years of age. * Treatment area skin fold thickness \> 1cm (measured by caliper). * Dissatisfaction with the treatment area expressed by the subject as a rating of 0, 1 or 2 using the Subject Self Rating Scale (SSRS) as determined at Screening visit. * No weight change exceeding 5% of body weight in the preceding month. * Agreement to maintain his/her weight (i.e., within 5%) by not making any major changes in diet or exercise routine during the course of the study. * Subject has signed a written informed consent form

Exclusion criteria

* Body Mass Index ≥ 46.2 as determined at screening. * Excessive skin laxity in the treatment area for which reduction of subcutaneous fat may, in the opinion of the investigator, result in an unacceptable aesthetic result. * Prominent platysmal bands at rest which may interfere with assessment of treatment area. * Evidence of any cause of enlargement in the treatment area other than localized subcutaneous fat, such as swollen lymph nodes or ptotic submandibular glands. * Significant enlargement on the anterior neck that may prevent the proper placement of the applicator e.g. enlarged thyroid glands. * Treatment with dermal fillers, chemical peels, radiofrequency or laser procedures that may affect contour in the treatment area within the past 6 months. * Botulinum toxin, deoxycholic acid, or other aesthetic drug injections within the treatment area in the past 6 months. * History of facial nerve paresis or paralysis (such as Bell's palsy). * History of a fat reduction procedure (e.g., liposuction, surgery, lipolytic agents, etc.) or implant in or adjacent to the area of intended treatment. * History of prior neck surgery, or prior surgery in the area of intended treatment. * Current infection in and adjacent to treatment area. * Known history of cryoglobulinemia, cold urticaria, cold agglutinin disease or paroxysmal cold hemoglobinuria. * Known history of Raynaud's disease, or any known condition with a response to cold exposure that limits blood flow to the skin. * History of bleeding disorder or is taking any medication that in the investigator's opinion may increase the subject's risk of bruising. * Currently taking or has taken diet pills or weight control supplements within the past month. * Any dermatological conditions, such as scars in the location of the treatment area that may interfere with the treatment or evaluation. * Active implanted device such as a pacemaker, automatic implantable cardioverter/defibrillator (AICD), drug delivery system, or any other implantable electrical device. * Pregnant or intending to become pregnant in the next 6 months. * Lactating or has been lactating in the past 6 months. * Unable or unwilling to comply with the study requirements including remaining clean shaven for all study visits. * Currently enrolled in a clinical study of an 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.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Unanticipated Adverse Device Effects (UADEs)From date of first treatment to 12 weeks after final treatment (up to 24 weeks)UADEs were defined as any serious adverse effect on health and safety or any life-threatening problem or death caused by, or associated with a device, if that effect, problem, or death was not previously identified in nature, severity, or degree of incidence in the investigational plan or application, or any other unanticipated serious problem associated with a device that relates to the rights, safety, or welfare of participants.
Number of Participants With Global Aesthetic Improvement Per Independent Physician Review of Photographs Based on Investigator Global Aesthetic Improvement Scale (GAIS-Independent)Baseline, 12 weeks post radiofrequency treatmentPhotos obtained during the study were reviewed by an independent physician reviewer who entered assessments according to the Global Aesthetic Improvement Scale (GAIS). The GAIS had outcome choices of very much improved, much improved, improved, no change, worse, much worse, or very much worse, with very much improved representing the most aesthetic improvement. Reported here is the sum of participants who were assessed as improved (Very Much Improved, Much Improved, and Improved).

Secondary

MeasureTime frameDescription
Percent Change From Baseline in Fat Layer ThicknessBaseline, 12 weeks post radiofrequency treatmentFat layer thickness was measured using a caliper at the center of the treatment area.
Number of Participants With Improvement Based on Subject-graded Global Aesthetic Improvement Scale (SGAIS)Baseline, 12 weeks post radiofrequency treatmentParticipants rated improvement in their treatment areas based on the SGAIS. The SGAIS had outcome choices of very much improved, much improved, improved, no change, worse, much worse, or very much worse, with very much improved representing the most aesthetic improvement. Reported here is the sum of participants who reported as improved (Very Much Improved, Much Improved, and Improved).
Number of Participants With Positive Response in Subject Self-Rating Scale (SSRS) ScoreBaseline, 12 weeks post radiofrequency treatmentParticipants assessed their own satisfaction with their face and chin using the SSRS. The SSRS is a participants self-rating scale, scored on a 7-point scale with 0=extremely dissatisfied, 1=dissatisfied, 2=slightly dissatisfied, 3=neither satisfied nor dissatisfied, 4=slightly satisfied, 5=satisfied, and 6=extremely satisfied, with 6 representing higher participant satisfaction. Reported here is the number of participants with a score of 4 or higher, indicating satisfaction.
Number of Participants With Positive Response on Subject Satisfaction QuestionnaireBaseline, 12 Weeks Post Radiofrequency TreatmentParticipants reported their satisfaction with aspects of treatment on a written questionnaire which included a 5-point Likert scale ranging from -2 to 2, with -2 representing more negative response and 2 representing more positive response. Reported here are the numbers of participants with responses of 1 or 2, indicating a positive response, to the following categories: Comfort of Treatment Procedure, How Visible is Fat Reduction, Overall Effect from the Procedure, Overall Satisfaction with Treatment from the Procedure to the Result, Made Me Look More Youthful, Made My Chin Look More Toned, Feel Less Self-Conscious About Chin Fat, Overall Appearance Has Improved.

Countries

United States

Participant flow

Pre-assignment details

A separate cohort was initially planned for radiofrequency treatment immediately following cryolipolysis at the same visit, however no participants were enrolled in this cohort.

Participants by arm

ArmCount
Cryolipolysis Followed by Radiofrequency Treatment
Participants received cryolipolysis treatment in submental and submandibular areas using the CoolSculpting System and CoolMini applicator for fat layer reduction on Day 0, which was followed with a radiofrequency treatment performed 12 weeks after CoolSculpting.
8
Total8

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyWithdrawal by Subject1

Baseline characteristics

CharacteristicCryolipolysis Followed by Radiofrequency Treatment
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
8 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
0 Participants
Race/Ethnicity, Customized
Asian
0 Participants
Race/Ethnicity, Customized
Black or African American
0 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
0 Participants
Race/Ethnicity, Customized
Other
5 Participants
Race/Ethnicity, Customized
White
3 Participants
Sex: Female, Male
Female
4 Participants
Sex: Female, Male
Male
4 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 8
other
Total, other adverse events
0 / 8
serious
Total, serious adverse events
0 / 8

Outcome results

Primary

Number of Participants With Global Aesthetic Improvement Per Independent Physician Review of Photographs Based on Investigator Global Aesthetic Improvement Scale (GAIS-Independent)

Photos obtained during the study were reviewed by an independent physician reviewer who entered assessments according to the Global Aesthetic Improvement Scale (GAIS). The GAIS had outcome choices of very much improved, much improved, improved, no change, worse, much worse, or very much worse, with very much improved representing the most aesthetic improvement. Reported here is the sum of participants who were assessed as improved (Very Much Improved, Much Improved, and Improved).

Time frame: Baseline, 12 weeks post radiofrequency treatment

Population: The Per-protocol population (PP) consisted of all participants who received both CoolSculpting and radiofrequency treatment, and had a weight change of no more than 5 percent at the time of the 12-week post final treatment visit.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cryolipolysis Followed by Radiofrequency TreatmentNumber of Participants With Global Aesthetic Improvement Per Independent Physician Review of Photographs Based on Investigator Global Aesthetic Improvement Scale (GAIS-Independent)2 Participants
Primary

Number of Participants With Unanticipated Adverse Device Effects (UADEs)

UADEs were defined as any serious adverse effect on health and safety or any life-threatening problem or death caused by, or associated with a device, if that effect, problem, or death was not previously identified in nature, severity, or degree of incidence in the investigational plan or application, or any other unanticipated serious problem associated with a device that relates to the rights, safety, or welfare of participants.

Time frame: From date of first treatment to 12 weeks after final treatment (up to 24 weeks)

Population: The Safety Population consisted of all participants who received at least one study treatment.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cryolipolysis Followed by Radiofrequency TreatmentNumber of Participants With Unanticipated Adverse Device Effects (UADEs)0 Participants
Secondary

Number of Participants With Improvement Based on Subject-graded Global Aesthetic Improvement Scale (SGAIS)

Participants rated improvement in their treatment areas based on the SGAIS. The SGAIS had outcome choices of very much improved, much improved, improved, no change, worse, much worse, or very much worse, with very much improved representing the most aesthetic improvement. Reported here is the sum of participants who reported as improved (Very Much Improved, Much Improved, and Improved).

Time frame: Baseline, 12 weeks post radiofrequency treatment

Population: The PP population consisted of all participants who received both CoolSculpting and radiofrequency treatment, and had a weight change of no more than 5 percent at the time of the 12-week post final treatment visit.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cryolipolysis Followed by Radiofrequency TreatmentNumber of Participants With Improvement Based on Subject-graded Global Aesthetic Improvement Scale (SGAIS)6 Participants
Secondary

Number of Participants With Positive Response in Subject Self-Rating Scale (SSRS) Score

Participants assessed their own satisfaction with their face and chin using the SSRS. The SSRS is a participants self-rating scale, scored on a 7-point scale with 0=extremely dissatisfied, 1=dissatisfied, 2=slightly dissatisfied, 3=neither satisfied nor dissatisfied, 4=slightly satisfied, 5=satisfied, and 6=extremely satisfied, with 6 representing higher participant satisfaction. Reported here is the number of participants with a score of 4 or higher, indicating satisfaction.

Time frame: Baseline, 12 weeks post radiofrequency treatment

Population: The PP population consisted of all participants who received both CoolSculpting and radiofrequency treatment, and had a weight change of no more than 5 percent at the time of the 12-week post final treatment visit.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cryolipolysis Followed by Radiofrequency TreatmentNumber of Participants With Positive Response in Subject Self-Rating Scale (SSRS) Score5 Participants
Secondary

Number of Participants With Positive Response on Subject Satisfaction Questionnaire

Participants reported their satisfaction with aspects of treatment on a written questionnaire which included a 5-point Likert scale ranging from -2 to 2, with -2 representing more negative response and 2 representing more positive response. Reported here are the numbers of participants with responses of 1 or 2, indicating a positive response, to the following categories: Comfort of Treatment Procedure, How Visible is Fat Reduction, Overall Effect from the Procedure, Overall Satisfaction with Treatment from the Procedure to the Result, Made Me Look More Youthful, Made My Chin Look More Toned, Feel Less Self-Conscious About Chin Fat, Overall Appearance Has Improved.

Time frame: Baseline, 12 Weeks Post Radiofrequency Treatment

Population: The Per-protocol population consisted of all participants who received at least 1 study treatment and had a weight change of no more than 5 percent at the time of the 12-week post final treatment visit.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Cryolipolysis Followed by Radiofrequency TreatmentNumber of Participants With Positive Response on Subject Satisfaction QuestionnaireComfort of Treatment Procedure3 Participants
Cryolipolysis Followed by Radiofrequency TreatmentNumber of Participants With Positive Response on Subject Satisfaction QuestionnaireHow Visible is Fat Reduction4 Participants
Cryolipolysis Followed by Radiofrequency TreatmentNumber of Participants With Positive Response on Subject Satisfaction QuestionnaireOverall Effect from the Procedure3 Participants
Cryolipolysis Followed by Radiofrequency TreatmentNumber of Participants With Positive Response on Subject Satisfaction QuestionnaireOverall Satisfaction with Treatment, from the Procedure to the Result5 Participants
Cryolipolysis Followed by Radiofrequency TreatmentNumber of Participants With Positive Response on Subject Satisfaction QuestionnaireMade Me Look More Youthful4 Participants
Cryolipolysis Followed by Radiofrequency TreatmentNumber of Participants With Positive Response on Subject Satisfaction QuestionnaireMade My Chin Look More Toned4 Participants
Cryolipolysis Followed by Radiofrequency TreatmentNumber of Participants With Positive Response on Subject Satisfaction QuestionnaireFeel Less Self-Conscious About Chin Fat4 Participants
Cryolipolysis Followed by Radiofrequency TreatmentNumber of Participants With Positive Response on Subject Satisfaction QuestionnaireOverall Appearance Has Improved4 Participants
Secondary

Percent Change From Baseline in Fat Layer Thickness

Fat layer thickness was measured using a caliper at the center of the treatment area.

Time frame: Baseline, 12 weeks post radiofrequency treatment

Population: The PP population consisted of all participants who received both CoolSculpting and radiofrequency treatment, and had a weight change of no more than 5 percent at the time of the 12-week post final treatment visit.

ArmMeasureValue (MEAN)Dispersion
Cryolipolysis Followed by Radiofrequency TreatmentPercent Change From Baseline in Fat Layer Thickness-31.9 percent changeStandard Deviation 9.4

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026