ClinicalTrials.gg
CompletedNCT04702529Updated Dec 24, 2024

Treatment of Fibrotic Scars With Rapid Acoustic Pulse (RAP) Device

An interventional study of Treatment of hypertrophic scars (Soliton's Rapid Acoustic Pulse (RAP) Device) in Scars, Hypertrophic, sponsored by Soliton. Completed at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-12-24.

Sponsored by Soliton · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

A multi-treatment proof of concept clinical study is to evaluate the safety, and efficacy of multiple treatments with Soliton's Rapid Acoustic Pulse (RAP) device for the improvement in the appearance of fibrotic scars

Read the detailed description

Soliton's Rapid Acoustic Pulse(RAP) device is an electrohydraulic (EH) device using Soliton's Rapid Acoustic Pulse (RAP) technology developed to minimize the appearance of scars through both micro-disruption of the scar matrix leading to scar remodeling and down regulation of the 'fibrotic fibroblasts'

02

Conditions studied

  • Scars, Hypertrophic
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In context

Cicatrix, Hypertrophic

129 studies on the registry are indexed under Cicatrix, Hypertrophic; 31 are open to participants now.

This study's enrollment of 20 is below the median of 36 across 106 interventional studies indexed under Cicatrix, Hypertrophic.

Browse Cicatrix, Hypertrophic studies →

Lead sponsor

Soliton is the lead sponsor of 7 studies on the registry; none are open to participants now.

Of its 5 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Male or female 18 years of age or older at the screening visit.
  2. The participant is healthy, as determined by the investigator based on a medical evaluation including medical history.
  3. The participant has a fibrotic scar (keloid or hypertrophic scar) that is easily delineated photographically located on the chest, back, trunk, upper arms or upper legs.
  4. Scar must be located an essentially planar surface.
  5. Scar size preferably between 2.5 cm2 and 5 cm2.
  6. Preferably, the scar length is greater than 25 mm; and height greater than 2.5 mm.
  7. Scar less than 5 years old.
  8. Participant is willing to forego any other scar treatments until complete with study participation.
  9. Participant is willing to participate in study and adhere to follow-up schedule.
  10. Participant is able to read and comprehend English.

Regardless of the above, the final decision on scar inclusion will rest with the PI.

Exclusion criteria

Exclusion Criteria:

  1. Participant is sensitive to loud sounds
  2. Participant had treatments, including topical , to the scar being treated in the study in the prior 12 months.
  3. Participant is unwilling to have research photos taken of treatment areas in the presence of Sponsor's researchers.
  4. Participant is unwilling to have RAP treatment provided in the presence of Sponsor's researchers.
  5. Participant is pregnant or planning to become pregnant during the duration of the study.
  6. Metal or plastic implants near the area of the treatment (vascular stent, plates and screws, chest wires, hips, knees, elbows, etc.).
  7. Active electronic implants such as pacemakers, defibrillators, cochlear implants, nerve/brain stimulators, drug pump, etc.
  8. Medical disorder that would hinder the wound healing or immune response (no blood disorder, etc.).
  9. History of coagulopathy(ies) and/or on anticoagulant medication.
  10. Skin disorders (skin infections or rashes, extensive scarring, psoriasis, etc.) in the treatment area.
  11. Current smoker.
  12. Any surgical procedure in the prior 3 months, or planned during the duration of the study.
  13. Any issue that, at the discretion of the Investigator, would interfere with assessment of safety or efficacy or compromise the participant's ability to fulfill study obligations
  14. Treatment with another device or agent within 30 days before treatment or during the study period
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants (actual)

Study arms

  • Experimental
    Three treatments to hypertrophic scar with RAP device

    RAP treatments will be administered to the scar every +/- 2 weeks for a total of 3 treatments

    Device: Treatment of hypertrophic scars (Soliton's Rapid Acoustic Pulse (RAP) Device)

Interventions

  • DeviceTreatment of hypertrophic scars (Soliton's Rapid Acoustic Pulse (RAP) Device)

    Administration of 3 Rapid Acoustic Pulse (RAP) treatments

06

What researchers measure

Primary outcomes

  1. Incidence of Treatment Emergent Serious Adverse Events (SAEs) and Unexpected Adverse Events (UAEs)

    Incidence of unexpected adverse events and serious adverse events directly attributable to the RAP device or treatment will be reported

    Time frame: Immediately post treatment

  2. Incidence of Treatment Emergent Serious Adverse Events (SAEs) and Unexpected Adverse Events (UAEs)Procedure Safety

    Incidence of unexpected adverse events and serious adverse events directly attributable to the RAP device or treatment will be reported

    Time frame: up to 14 days

  3. Incidence of Treatment Emergent Serious Adverse Events (SAEs) and Unexpected Adverse Events (UAEs)

    Incidence of unexpected adverse events and serious adverse events directly attributable to the RAP device or treatment will be evaluated before each treatment which occurs every 2 weeks, (+/- 1 week) and will be reported

    Time frame: up to 3 week post treatment

  4. Change from baseline scar Global Aesthetic Improvement Scale at 12 weeks

    Noted improvement in scar appearance via Global Aesthetic Improvement Scale Scale (GAIS) as reported by the Principal Investigator (PI). Minimum value 1 and maximum value 5, with higher score meaning worse outcome.

    Time frame: 12 weeks

Secondary outcomes

  1. Change in baseline scar Global Aesthetic Improvement scale at 12 weeks

    Noted improvement in scar via Patient and Observer Scar Assessment Scale (POSAS). Minimum value 1 and maximum value 10, with higher scores meaning a better outcome.

    Time frame: 12 weeks

  2. Change in baseline scar Global Aesthetic Improvement Scale at 12 weeks

    Noted improvement in scar appearance via Global Aesthetic Improvement Scale (GAIS) as reported by the participant. Minimum value 1 and maximum value 5, with higher score meaning worse outcome.

    Time frame: 12 weeks

07

Study locations

1 site
  • San Diego Naval Medical Center
    San Diego, California 92134, United States
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 24, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04702529
Lead sponsor
Soliton
Collaborators
United States Naval Medical Center, San Diego
Responsible party
Sponsor
First posted
Jan 11, 2021
Start date
Jun 22, 2022
Primary completion
Aug 31, 2023
Completion
Aug 31, 2023
Last update
Dec 24, 2024

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in May 2023. You cannot join it, but the record below documents what was studied.

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