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CoolSculpting and EMS for the Abdomen

A Feasibility Study to Evaluate Electromagnetic Muscle Stimulation and CoolSculpting for Abdominal Contouring

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03738891
Acronym
ECA
Enrollment
50
Registered
2018-11-13
Start date
2018-11-07
Completion date
2019-09-09
Last updated
2025-05-16

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

Evaluate the use of Electromagnetic Muscle Stimulation as an adjunctive treatment to CoolSculpting.

Interventions

DEVICEZeltiq CoolSculpting System alone

The CoolSculpting System will be used to perform the treatments in Cohort 3.

DEVICEElectromagnetic Muscle Stimulation alone

The EMS device(s) alone are used in Cohort 1.

DEVICEEMS followed by CoolSculping

Cohort 2 group will be treated with EMS followed by CoolSculpting

DEVICECoolSculpting followed by EMS

Cohort 4 will be treated first with CoolSculpting, followed by EMS.

Sponsors

Zeltiq Aesthetics
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
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 and female subjects \> 22 years of age and ≤65 years of age. * Subject has not had weight change exceeding 5% of body weight in the preceding month. * Subject agrees to maintain her weight (i.e., within 5%) by not making any major changes in diet or exercise routine during the course of the study. * Subject agrees to refrain from any new abdominal training exercises during the course of the study. * BMI ≤ 30 kg/m\^2 as determined at screening. * Abdominal skin fold thickness 2.0 to 5.0 cm, as measured by caliper below umbilicus. * Cohort 4 only: Subject participated in protocol ZA18-003 in Cohort 3, and received the CoolSculpting treatment no more than 6 months prior. * 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, mesotherapy) in the area of intended treatment. * Subject has had a non-invasive fat reduction, body contouring and/or skin tightening procedure in the area of intended treatment within the past 12 months. * Subject has numbness, tingling or other altered sensation in the treatment area. * 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. * Subject has not had an intrauterine contraceptive device inserted or removed within the past month. * Subject has a known history of cryoglobulinemia, cold urticaria, cold agglutinin disease, 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 bleeding disorder or is taking any medication that in the Investigator's opinion may increase the subject's risk of bruising. * Subject has known sensitivity or allergy to isopropyl alcohol and propylene glycol, or latex. * 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 a metal implant or active implanted device such as a pacemaker, defibrillator, or drug delivery system. * Subject has been involved in any type of abdominal muscle training program within the previous 6 months. * Subject has pulmonary insufficiency. * Subject has a cardiac disorder. * Subject has a malignant tumor. * Subject has been diagnosed with epilepsy. * Subject currently has a fever. * Subject is pregnant or intending to become pregnant during the study period (in the next 9 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 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 Unanticipated Adverse Device Effects (UADE)Enrollment through the final 12-week follow-up visit.The number of UADEs occurring during the study will be tabulated.
Number of Participants With Global Aesthetic Improvement Per Independent Physician Review of Photographs Based on Investigator Global Aesthetic Improvement Scale (GAIS-Independent)Baseline photos will be compared to images collected at the final 12-week post-treatment follow-up visit.Comparison of pre-treatment- and 12-week post-final treatment photographs by independent physician reviewer. The reviewer was blinded to the method of treatment and study cohort; baseline and 12-week post-treatment photos were not blinded. After Sponsor training, the reviewer 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
Change in Pre-treatment and Post-treatment Abdominal CircumferenceBaseline and final 12-week follow-up visit.Abdominal circumference as measured by 3-Dimensional imaging prior to treatment (baseline) is compared to images collected at the final 12-week post-treatment follow-up visit. Measurements were captured at 3 points including the upper, middle and lower abdomen. All measurements were averaged per subject at the baseline and 12-week visit time points to obtain circumference values. Results for each cohort are shown in millimeters of circumference reduction.
Percentage of Participants With Global Aesthetic Improvement Scale (S-GAIS) Reporting ImprovementFinal post-treatment 12-week follow-up visitSubjects completed a graded 7-point GAIS at 12-week post-final treatment follow-up. The scale consists of the following response options: 3 = Very much improved; 2 = Much improved; 1 = Improved; 0 = No change; -1 = Worse; -2 = Much worse; -3 = Very much worse. Results were tabulated across the three treatment cohorts. Results were calculated in the percentage of the subjects reporting improvement.

Countries

United States

Participant flow

Pre-assignment details

A total of 50 participants enrolled into Cohorts 1, 2, and 3. One subject enrolled in Cohort 3, received the treatment and completed all follow-up visits per Cohort 3 before subsequently rolling over to, and receiving treatment planned for Cohort 4. No other subjects were enrolled in Cohort 4. Efficacy data for Cohort 4 was excluded from analysis to avoid the perception of enhancing study enrollment. Data from this participant's treatment in Cohort 3 was included in all endpoint analyses.

Participants by arm

ArmCount
Cohort 1-EMS Only
Participants in this group were treated with 4 sessions of Electromagnetic Muscle Stimulation (EMS). CoolSculpting was not used.
20
Cohort 2 - EMS Followed by CoolSculpting
articipants were treated with EMS (4 sessions) followed by 1 CoolSculpting treatment (3-6 cooling cycles)
20
Cohort 3 - CoolSculpting Only
Participants were treated with 1 CoolSculpting treatment (3-6 cooling cycles)
10
Total50

Baseline characteristics

CharacteristicTotalCohort 3 - CoolSculpting OnlyCohort 1-EMS OnlyCohort 2 - EMS Followed by CoolSculpting
Age, Continuous42.2 years
STANDARD_DEVIATION 11
47.7 years
STANDARD_DEVIATION 7.9
43.5 years
STANDARD_DEVIATION 12.8
38.2 years
STANDARD_DEVIATION 9.3
Body Mass Index23.5 kg/m^2
STANDARD_DEVIATION 2.3
23.9 kg/m^2
STANDARD_DEVIATION 2.1
22.6 kg/m^2
STANDARD_DEVIATION 2.1
24.1 kg/m^2
STANDARD_DEVIATION 2.3
Race/Ethnicity, Customized
Am. Indian or Alaska Native
1 Participants0 Participants1 Participants0 Participants
Race/Ethnicity, Customized
Asian
3 Participants1 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Black or African American
0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Caucasian
43 Participants8 Participants17 Participants18 Participants
Race/Ethnicity, Customized
Native Hawaiian or Pac Islander
0 Participants0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Other
3 Participants1 Participants1 Participants1 Participants
Region of Enrollment
United States
50 Participants10 Participants20 Participants20 Participants
Sex: Female, Male
Female
38 Participants8 Participants16 Participants14 Participants
Sex: Female, Male
Male
12 Participants2 Participants4 Participants6 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 200 / 200 / 100 / 1
other
Total, other adverse events
0 / 202 / 201 / 100 / 1
serious
Total, serious adverse events
0 / 200 / 200 / 100 / 1

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)

Comparison of pre-treatment- and 12-week post-final treatment photographs by independent physician reviewer. The reviewer was blinded to the method of treatment and study cohort; baseline and 12-week post-treatment photos were not blinded. After Sponsor training, the reviewer 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 photos will be compared to images collected at the final 12-week post-treatment follow-up visit.

Population: All enrolled participants in Cohort 1 were included in the efficacy analysis. Cohort 2 excluded 1 participant for weight outside of protocol requirements and 1 subject for lack of 12-week follow-up photos. Cohort 3 excluded 1 participant due to a surgical procedure in the treatment area. Cohort 4 excluded one participant previously enrolled and treated in Cohort 3 (allowed per protocol); participant included in Cohort 3 analysis only.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Cohort 1-EMS OnlyNumber of Participants With Global Aesthetic Improvement Per Independent Physician Review of Photographs Based on Investigator Global Aesthetic Improvement Scale (GAIS-Independent)16 Participants
Cohort 2 - EMS and CoolSculptingNumber of Participants With Global Aesthetic Improvement Per Independent Physician Review of Photographs Based on Investigator Global Aesthetic Improvement Scale (GAIS-Independent)16 Participants
Cohort 3 - CoolSculpting OnlyNumber of Participants With Global Aesthetic Improvement Per Independent Physician Review of Photographs Based on Investigator Global Aesthetic Improvement Scale (GAIS-Independent)8 Participants
Primary

Number of Unanticipated Adverse Device Effects (UADE)

The number of UADEs occurring during the study will be tabulated.

Time frame: Enrollment through the final 12-week follow-up visit.

Population: All Participants who received at least one study treatment. Participants in all cohorts were evaluated for adverse events.

ArmMeasureValue (NUMBER)
Cohort 1-EMS OnlyNumber of Unanticipated Adverse Device Effects (UADE)0 events
Cohort 2 - EMS and CoolSculptingNumber of Unanticipated Adverse Device Effects (UADE)0 events
Cohort 3 - CoolSculpting OnlyNumber of Unanticipated Adverse Device Effects (UADE)0 events
Cohort 4 - CoolSculpting Followed by EMSNumber of Unanticipated Adverse Device Effects (UADE)0 events
Secondary

Change in Pre-treatment and Post-treatment Abdominal Circumference

Abdominal circumference as measured by 3-Dimensional imaging prior to treatment (baseline) is compared to images collected at the final 12-week post-treatment follow-up visit. Measurements were captured at 3 points including the upper, middle and lower abdomen. All measurements were averaged per subject at the baseline and 12-week visit time points to obtain circumference values. Results for each cohort are shown in millimeters of circumference reduction.

Time frame: Baseline and final 12-week follow-up visit.

Population: There were no exclusions from efficacy analysis in Cohort 1. One (1) participant in Cohort 2 was excluded from the analysis due to weight outside requirements of the protocol; 1 participant from cohort 3 was excluded due to a surgical treatment; cohort 4 consisted of a single participant treated in cohort 3 and subsequently rolled over to cohort 4 after cohort 3 final follow-up was completed. Cohort 4 was therefore not analyzed for efficacy.

ArmMeasureValue (MEAN)Dispersion
Cohort 1-EMS OnlyChange in Pre-treatment and Post-treatment Abdominal Circumference-4 mmStandard Deviation 16
Cohort 2 - EMS and CoolSculptingChange in Pre-treatment and Post-treatment Abdominal Circumference-15 mmStandard Deviation 11
Cohort 3 - CoolSculpting OnlyChange in Pre-treatment and Post-treatment Abdominal Circumference-10 mmStandard Deviation 18
Secondary

Percentage of Participants With Global Aesthetic Improvement Scale (S-GAIS) Reporting Improvement

Subjects completed a graded 7-point GAIS at 12-week post-final treatment follow-up. The scale consists of the following response options: 3 = Very much improved; 2 = Much improved; 1 = Improved; 0 = No change; -1 = Worse; -2 = Much worse; -3 = Very much worse. Results were tabulated across the three treatment cohorts. Results were calculated in the percentage of the subjects reporting improvement.

Time frame: Final post-treatment 12-week follow-up visit

Population: All enrolled subjects with a completed S-GAIS at post-treatment 12-week follow-up visit. Cohort 4 was not included in the tabulation as the single subject treated in this cohort had been previously treated in Cohort 3 (allowed per protocol). Results for the single subject treated in both Cohort 3 and Cohort 4 were tabulated with Cohort 3.

ArmMeasureValue (NUMBER)
Cohort 1-EMS OnlyPercentage of Participants With Global Aesthetic Improvement Scale (S-GAIS) Reporting Improvement70 percentage of participants
Cohort 2 - EMS and CoolSculptingPercentage of Participants With Global Aesthetic Improvement Scale (S-GAIS) Reporting Improvement89 percentage of participants
Cohort 3 - CoolSculpting OnlyPercentage of Participants With Global Aesthetic Improvement Scale (S-GAIS) Reporting Improvement100 percentage of participants

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