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The Jewel IDE Study

A Clinical Evaluation of the Jewel P-WCD in Subjects at High Risk for Sudden Cardiac Arrest

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05201495
Enrollment
322
Registered
2022-01-21
Start date
2022-01-12
Completion date
2023-11-10
Last updated
2026-04-27

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

Conditions

Sudden Cardiac Arrest

Brief summary

The Jewel IDE Study: A Clinical Evaluation of the Jewel P-WCD in Subjects at High Risk for Sudden Cardiac Arrest. ("JEWEL")

Detailed description

Multi-center, prospective, single arm study of the Jewel Patch-Wearable Cardioverter Defibrillator (P-WCD) System in patients at high risk for Sudden Cardiac Arrest

Interventions

Automatic external cardioverter defibrillator that monitors patients at risk for SCA and provides a therapeutic shock if needed.

Sponsors

Element Science, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Patients of any gender aged ≥ 18 years. 2. Patients with either: 1. a measured LVEF less than or equal to 40% (as assessed by techniques such as, but not limited to, cardiac angiography, echocardiography, magnetic resonance imaging, or radionuclide angiography within the last 30 days prior to enrollment) AND identified as presenting with a diagnosis of an AMI, ischemic cardiomyopathy (includes congestive heart failure: NYHA Class I - III), non- ischemic cardiomyopathy, or myocarditis; OR 2. who have a temporary or long-term contraindication to receiving an ICD, who have had an ICD removed, or who refuse an ICD OR 3. whose ICD implantation is delayed due to COVID-19 infection or exposure- related risks

Exclusion criteria

1. Member of a vulnerable patient population as defined in ISO 14155; 2. Life expectancy of less than one year, including end-stage heart failure, cancer, or other diagnosed condition; 3. Patients with an anticipated initial prescription period over 180 days (limitation only to allow timely closure of this clinical trial); 4. Patients with an advanced directive prohibiting resuscitation; 5. Existing ICD; 6. Existing unipolar pacemaker; 7. Existing FDA-cleared or FDA-approved active implantable or body worn medical device(s) that the Sponsor requires to be removed prior to the study but which cannot be removed; 8. Clinically significant valve disease, including aortic stenosis, mitral stenosis; mitral regurgitation, tricuspid regurgitation, insufficiency of the aortic or pulmonary valves, any of which is likely to require surgery in the next year; 9. A planned procedure, such as Coronary Artery Bypass Graft, within six (6) months; 10. End-stage renal disease, or chronic renal failure requiring hemodialysis; 11. Planned discharge to an institutional setting with an anticipated stay of greater than seven (7) days; 12. Having a mental, visual, physical, or auditory deficit, that could impair their ability to properly place, remove, or interact with the Jewel System; 13. Unable to understand English for the purposes of interacting with the device; 14. Unable to use a wearable defibrillator due to physical conditions (bandages preventing electrode contact, physical deformities preventing electrode contact, etc.); 15. Dextrocardia; 16. Body circumference of less than 27 inches or greater than 56 inches in the intended area of the Belt component of the Placement Accessory; 17. Participation in an investigational study of a drug, biologic, or device not currently approved for marketing; 18. Allergic to or have had a known adverse reaction to medical adhesives or hydrocolloids; 19. Active skin breakdown, erythema, or other signs of infection in the pectoral or torso regions where the Adhesive Electrode Patches are applied; 20. Females who are pregnant or breast-feeding, or planning to be pregnant in the next 12 months; 21. No US-based postal address that can be used to ship and receive study devices and supplies (a Post Office box is not an acceptable address for product shipments). 22. Patients who, in the opinion of the Investigator, are anticipated to be non-compliant with study instructions; 23. Unable to provide or have diminished capacity to provide informed consent; 24. Any condition that an Investigator believes would interfere with the intent of the study or make participation not in the best interest of the patient.

Design outcomes

Primary

MeasureTime frameDescription
Inappropriate Shock RatePrescription Period during which each patient wore the Jewel up to 180 days.Inappropriate shocks no more than 2.0 inappropriate shocks per 100 patient-months.
Cutaneous Adverse Device EffectsPrescription Period during which each patient wore the Jewel up to 180 days.Rate of subjects experiencing clinically significant cutaneous Adverse Device Effects of \< 15%

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORJaved Butler, M.D.

University of Mississippi Medical Center

PRINCIPAL_INVESTIGATORJohn Hummel, M.D.

Ohio State University

PRINCIPAL_INVESTIGATORRoxana Mehran, M.D.

Icahn School of Medicine at Mount Sinai

Participant flow

Participants by arm

ArmCount
Study Arm
Multi-center, prospective, single arm study of the Jewel Patch-Wearable Cardioverter Defibrillator (P-WCD) System in adult subjects aged 18 years and above at high risk for Sudden Cardiac Arrest, who were not candidates for or who refused an implanted cardioverter defibrillator.
314
Total314

Baseline characteristics

CharacteristicStudy Arm
Age, Continuous57.8 years
STANDARD_DEVIATION 13.5
Body Mass Index30.0 kg/m2
STANDARD_DEVIATION 6.8
Ethnicity (NIH/OMB)
Hispanic or Latino
12 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
302 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Sex: Female, Male
Female
94 Participants
Sex: Female, Male
Male
220 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 314
other
Total, other adverse events
49 / 314
serious
Total, serious adverse events
0 / 314

Outcome results

Primary

Cutaneous Adverse Device Effects

Rate of subjects experiencing clinically significant cutaneous Adverse Device Effects of \< 15%

Time frame: Prescription Period during which each patient wore the Jewel up to 180 days.

ArmMeasureValue (NUMBER)
Study ArmCutaneous Adverse Device Effects2.23 percentage of participants
Primary

Inappropriate Shock Rate

Inappropriate shocks no more than 2.0 inappropriate shocks per 100 patient-months.

Time frame: Prescription Period during which each patient wore the Jewel up to 180 days.

Population: Of the 314 total patients completed, the primary analysis population was comprised of the 300 subjects who completed the study and had available device data contributing to analyzable wear time.

ArmMeasureValue (NUMBER)
Study ArmInappropriate Shock Rate0.333 inappropriate shocks per 100 pt-months

Source: ClinicalTrials.gov · Data processed: Apr 28, 2026