ClinicalTrials.gg
CompletedNCT05070754Updated Apr 5, 2024Results posted

Cold Atmospheric Plasma Device for Pediatric Molluscum and Verruca

A Phase 4 interventional study of Floating electrode-dielectric barrier device (FE-DBD) cold atmospheric plasma (CAP) and Cryotherapy in Verruca Vulgaris and Molluscum Contagiosum Skin Infection, sponsored by Medical University of South Carolina. Completed at 1 site in United States. Open to participants aged 4 Years to 21 Years. Per ClinicalTrials.gov, last updated 2024-04-05.

Sponsored by Medical University of South Carolina · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
17
Allocation
Randomized
Ages
4 Years to 21 Years
Sex
All
01

Study summary

This study is going to test a cold atmospheric plasma device (CAP), in particular a floating electrode-dielectric barrier device (FE-DBD), to treat warts and molluscum. The treatment device in this study generates cold atmospheric plasma (gaseous ionized molecules) to rid the virus from the body. Based on the successes of previous dermatologic studies, FE-DBD is being tested for this study to treat warts and molluscum. Patients will be enrolled to test the efficacy and safety of this device. The duration of the study is 4-12 weeks depending on treatment clearance. The number of lesions will be chosen by the dermatologist. Patients will receive standard of care therapy and/or NTAP depending on the number of lesions.

02

Conditions studied

  • Verruca Vulgaris
  • Molluscum Contagiosum Skin Infection

Browse trials for

Keywords

  • Plasma
  • Cryotherapy
  • Pediatrics
  • Warts
  • Molluscum
  • Dermatology
  • Cantharidin
03

In context

Warts

184 studies on the registry are indexed under Warts; 29 are open to participants now.

This study's enrollment of 17 is below the median of 70 across 163 interventional studies indexed under Warts.

Browse Warts studies →

Lead sponsor

Medical University of South Carolina is the lead sponsor of 871 studies on the registry; 163 are open to participants now.

Of its 131 completed or terminated interventional studies of FDA-regulated products, 104 (79%) have results posted.

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

04

Who can participate

Ages eligible
4 Years to 21 Years
Sexes eligible
All
Accepts healthy volunteers
No

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

  • All patients from 4-21 years old with at least 1 lesion of either verruca vulgaris or molluscum contagiosum
  • Willingness of the participant and their guardian to provide consent when applicable

Exclusion criteria

Exclusion Criteria:

  • Unwillingness to participate in the study
  • Received any treatment on the lesion in the past month, as determined by review of participant medical record
  • Immunodeficiency as determined by review of participant medical record
  • Adverse response to prior treatments as determined by review of medical record
  • Signs of self-resolution as determined by study team members
  • Conditions that lead to excessive scarring as determined by study team members
  • Facial and genital lesions as determined by study team members
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
17 participants (actual)

Study arms

  • Experimental
    Cold Atmospheric Plasma (CAP)

    We are proposing a clinical trial of a floating electrode-dielectric barrier device (FE-DBD), a Cold Atmospheric Plasma (CAP) device for the treatment of Verrucae Vulgaris and Molluscum Contagiosum. While novel to the medical field, and especially to dermatology, there are already a number of publications regarding its use on human skin in adults and children. CAP devices utilize noble gases (such as helium) to deliver plasma state matter to the skin. As its name implies, the generated plasma stream is of near skin temperature and it exists on normal atmospheric pressure. During the generation of the plasma there is no electric contact with the patient. The treatment does not increase skin surface temperature and the used helium gas, the same as used for balloons, being a noble gas does not cause a chemical reaction with the skin. The flow of the gas is slow, thus there is no mechanical effect on the skin.

    Device: Floating electrode-dielectric barrier device (FE-DBD) cold atmospheric plasma (CAP)

  • Active comparator
    Cryotherapy

    Current standard of care (SOC) for treating Verruca Vulgaris in Children is cryotherapy. Patients randomized to this arm of the study will receive SOC treatment for their identified condition.

    Device: Cryotherapy

  • Active comparator
    Cantharidin

    SOC for treatment of Molluscum Contagiosum is cantharidin. Patients randomized to this arm of the study will receive SOC treatment for their identified condition.

    Drug: Canthardin Collodion

Interventions

  • DeviceFloating electrode-dielectric barrier device (FE-DBD) cold atmospheric plasma (CAP)

    The treatment device in this study generates cold atmospheric plasma. Cold atmospheric plasma has certain properties of plasma, such as ionized gas molecules. To create plasma, a pulse generator supplying 20 kilovolt pulse of 20-ns pulse width at 200 Hz (FPG10-01NM10, FID GmbH, Burbach, Germany) to a 5-mm diameter quartz-covered copper electrode of 10-cm length and 1 - 13mm quartz thickness. These nanosecond pulse parameters were chosen to provide sufficient treatment dose at the high level of plasma uniformity required to avoid any tissue damage. We will treat the lesions for approximately 1 to 2 minutes each, moving the electrode gently over the treatment area.

    Also known as: Non-thermal atmospheric pressure plasma (NTAP)

  • DeviceCryotherapy

    Cryotherapy refers to the application of liquid nitrogen using a cryospray device in order to freeze a lesion of interest. Treatment is repeated every few weeks until the lesion of interest has disappeared. It is considered SOC for the treatment of warts.

    Also known as: Cold Therapy, Liquid Nitrogen

  • Chemical compound that acts as a vesicant to form a blister around treatment area. The blister lifts the lesion of interest away from the skin, causing it to slough off in a few days. It is used as SOC for the treatment of Molluscum Contagiosum.

    Also known as: Cantharidin

06

What researchers measure

Primary outcomes

  1. Numbers of Lesions With no Response

    Absence of change in appearance of targeted lesion. Molluscum is defined as the visualization of a central umbilication with polylobular, white to yellow, amorphous structures. A peripheral crown of radiating or punctiform vessels may also be present. Warts are defined as grouped papillae, with dotted or loop vessels, and/or hemorrhagic points and lines often surrounded by a whitish halo.

    Time frame: 12 weeks

  2. Numbers of Lesions With Partial Response

    There is change in the size, dyspigmentation, or discomfort of the targeted lesion as compared to its appearance and symptoms at the initial visit, but the lesion remains grossly visible. Molluscum is defined as the visualization of a central umbilication with polylobular, white to yellow, amorphous structures. A peripheral crown of radiating or punctiform vessels may also be present. Warts are defined as grouped papillae, with dotted or loop vessels, and/or hemorrhagic points and lines often surrounded by a whitish halo. Changes in the characteristics of the targeted lesions will be evaluated by a dermatologist and documented via photographs at follow-up visits at 4, 8, and 12 weeks, with the final outcome measured at the 12-week visit.

    Time frame: 12 weeks

  3. Numbers of Lesions With Complete Response

    Targeted lesion is no longer grossly visible.

    Time frame: 12 weeks

Secondary outcomes

  1. Post-Treatment CAP Tolerability Questionnaire

    This questionnaire measures tolerability of cold atmospheric plasma treatment. Assessment of dryness, peeling, scaling, erythema, edema, stinging, burning sensation, itching, scarring and dyspigmentation will each be assessed individually. Participants were asked about these symptoms at a 1-week post-first treatment phone call, and then at every in-person follow up visit. Outcome data represents the number of total lesions in each treatment group in which a participant reported at least one of the above adverse symptoms. Results of specific AEs are detailed in the Adverse Event section.

    Time frame: 12 weeks

  2. Score of Visual Analogue Scale Associated With Treatment

    The visual analogue scale (VAS) is a validated subjective measurement of pain experienced by the patient. It consists of visual-numeric scale, numbered from 0-10. (0) indicate absence of pain or "no pain at all", while (10) indicates severe pain or "worst imaginable pain". This is supplemented by six faces with different expressions, ranging from happy to extremely upset. Each facial expression is assigned a numerical scale from 0 to 10.

    Time frame: 12 weeks

07

Results

Posted Apr 5, 2024
Limitations and caveats
Limitations: * Study was adequately powered with the number of lesions, but a small number of patients enrolled * Low enrollment of patients with skin of color * Patients limited to only three treatments with the NTAP device * Assessment of sustained treatment response was limited to 4 weeks after treatment \& may not represent long-term response * Post-treatment sequelae were measured at the end of the study period. We are unable to determine whether they persisted or self-resolved.

Participant flow

Participant flow — Overall Study
MilestoneCold Atmospheric Plasma (CAP) OnlyCryotherapy OnlyCAP and CryotherapyCAP and Cantharidin
Started21113
Cap20113
Cryotherapy01110
Cantharidin0003
Completed21111
Not completed0002
Withdrew: Withdrawal by subject0001
Withdrew: Protocol violation0001

Outcome measures

PrimaryNumbers of Lesions With no Response

Absence of change in appearance of targeted lesion. Molluscum is defined as the visualization of a central umbilication with polylobular, white to yellow, amorphous structures. A peripheral crown of radiating or punctiform vessels may also be present. Warts are defined as grouped papillae, with dotted or loop vessels, and/or hemorrhagic points and lines often surrounded by a whitish halo.

Time frame:
12 weeks
Reported as:
Number · lesions
Numbers of Lesions With no Response
lesionsLesions Treated With Cold Atmospheric Plasma (CAP)Lesions Treated With Standard of Care (SOC)
Numbers of Lesions With no Response89
Statistical analysis
  • Lesions Treated With Standard of Care (SOC) · Chi-squared · p = 0.534
PrimaryNumbers of Lesions With Partial Response

There is change in the size, dyspigmentation, or discomfort of the targeted lesion as compared to its appearance and symptoms at the initial visit, but the lesion remains grossly visible. Molluscum is defined as the visualization of a central umbilication with polylobular, white to yellow, amorphous structures. A peripheral crown of radiating or punctiform vessels may also be present. Warts are defined as grouped papillae, with dotted or loop vessels, and/or hemorrhagic points and lines often surrounded by a whitish halo. Changes in the characteristics of the targeted lesions will be evaluated by a dermatologist and documented via photographs at follow-up visits at 4, 8, and 12 weeks, with the final outcome measured at the 12-week visit.

Time frame:
12 weeks
Reported as:
Number · lesions
Numbers of Lesions With Partial Response
lesionsLesions Treated With Cold Atmospheric Plasma (CAP)Lesions Treated With Standard of Care (SOC)
Numbers of Lesions With Partial Response2315
Statistical analysis
  • Lesions Treated With Standard of Care (SOC) · Chi-squared · p = 0.534
PrimaryNumbers of Lesions With Complete Response

Targeted lesion is no longer grossly visible.

Time frame:
12 weeks
Reported as:
Number · lesions
Numbers of Lesions With Complete Response
lesionsLesions Treated With Cold Atmospheric Plasma (CAP)Lesions Treated With Standard of Care (SOC)
Numbers of Lesions With Complete Response4045
Statistical analysis
  • Lesions Treated With Standard of Care (SOC) · Chi-squared · p = 0.534
SecondaryPost-Treatment CAP Tolerability Questionnaire

This questionnaire measures tolerability of cold atmospheric plasma treatment. Assessment of dryness, peeling, scaling, erythema, edema, stinging, burning sensation, itching, scarring and dyspigmentation will each be assessed individually. Participants were asked about these symptoms at a 1-week post-first treatment phone call, and then at every in-person follow up visit. Outcome data represents the number of total lesions in each treatment group in which a participant reported at least one of the above adverse symptoms. Results of specific AEs are detailed in the Adverse Event section.

Time frame:
12 weeks
Reported as:
Number · lesions
Post-Treatment CAP Tolerability Questionnaire
lesionsLesions Treated With Cold Atmospheric Plasma (CAP)Lesions Treated With Standard of Care (SOC)
Post-Treatment CAP Tolerability Questionnaire1042
Statistical analysis
  • Lesions Treated With Standard of Care (SOC) · Chi-squared · p = <0.001
SecondaryScore of Visual Analogue Scale Associated With Treatment

The visual analogue scale (VAS) is a validated subjective measurement of pain experienced by the patient. It consists of visual-numeric scale, numbered from 0-10. (0) indicate absence of pain or "no pain at all", while (10) indicates severe pain or "worst imaginable pain". This is supplemented by six faces with different expressions, ranging from happy to extremely upset. Each facial expression is assigned a numerical scale from 0 to 10.

Time frame:
12 weeks
Reported as:
Median · units from 0-10 on VAS scale
Score of Visual Analogue Scale Associated With Treatment
units from 0-10 on VAS scaleLesions Treated With Cold Atmospheric Plasma (CAP)Lesions Treated With Standard of Care (SOC)
Score of Visual Analogue Scale Associated With Treatment2.5 (0 to 10)0.9 (0 to 8)
Statistical analysis
  • Lesions Treated With Standard of Care (SOC) · Wilcoxon Signed Rank Test · p = 0.142

Adverse events

Collected over 4 months (maximum of 3 months of treatment, then 1 month post-treatment). Non-serious events are listed at a 1% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Cold Atmospheric Plasma (CAP) Only0/2 (0%)0/2 (0%)2/2 (100%)
Cryotherapy Only0/1 (0%)0/1 (0%)1/1 (100%)
CAP and Cryotherapy0/11 (0%)0/11 (0%)9/11 (81.8%)
CAP and Cantharidin0/3 (0%)0/3 (0%)3/3 (100%)
Most frequent other events
Most frequent other events
EventCold Atmospheric Plasma (CAP) OnlyCryotherapy OnlyCAP and CryotherapyCAP and Cantharidin
Patient-reported AE: RednessSkin and subcutaneous tissue disorders0/20/11/113/3
Physician-determined Sequela: HyperpigmentationSkin and subcutaneous tissue disorders1/21/18/113/3
Physician-determined Sequela: HypopigmentationSkin and subcutaneous tissue disorders0/21/16/112/3
Patient-reported AE: PainSkin and subcutaneous tissue disorders1/20/13/110/3
Patient-Reported AE: BlisteringSkin and subcutaneous tissue disorders0/20/12/111/3
Patient-Reported AE: ScabbingSkin and subcutaneous tissue disorders0/20/10/111/3
Physician-determined Sequela: ErythemaSkin and subcutaneous tissue disorders0/20/12/110/3
Physician-determined Sequela: ScarringSkin and subcutaneous tissue disorders0/20/12/110/3
Patient-Reported AE: Other Color ChangeSkin and subcutaneous tissue disorders0/20/11/110/3

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Cold Atmospheric Plasma (CAP) OnlyCryotherapy OnlyCAP and CryotherapyCAP and CantharidinTotal
<=18 years2111317
Between 18 and 65 years00000
>=65 years00000
Age, Continuous
Age, Continuous(years)Cold Atmospheric Plasma (CAP) OnlyCryotherapy OnlyCAP and CryotherapyCAP and CantharidinTotal
Mean6.5 (5 to 8)10 (10 to 10)10 (7 to 14)7 (4 to 13)9.1 (4 to 14)
Sex: Female, Male
Sex: Female, Male(Participants)Cold Atmospheric Plasma (CAP) OnlyCryotherapy OnlyCAP and CryotherapyCAP and CantharidinTotal
Female11226
Male109111
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Cold Atmospheric Plasma (CAP) OnlyCryotherapy OnlyCAP and CryotherapyCAP and CantharidinTotal
American Indian or Alaska Native00000
Asian00000
Native Hawaiian or Other Pacific Islander00000
Black or African American00000
White2110215
More than one race00011
Unknown or Not Reported00101
Region of Enrollment
Region of Enrollment(participants)Cold Atmospheric Plasma (CAP) OnlyCryotherapy OnlyCAP and CryotherapyCAP and CantharidinTotal
United States2111317
08

Study locations

1 site
  • Medical University of South Carolina
    Charleston, South Carolina 29425, United States
09

References and documents

Publications

  • Walker CL, Shope CN, Andrews LA, Atherton KM, Beck T, Santa Lucia G, Fridman G, Friedman PC, Cotton CH, Wine Lee L. A randomized controlled trial analyzing nonthermal atmospheric plasma for the treatment of verruca vulgaris in pediatric patients. J Am Acad Dermatol. 2025 Jan;92(1):46-50. doi: 10.1016/j.jaad.2024.07.1522. Epub 2024 Aug 27. PubMed 39197495 ↗

Study documents

  • Protocol and statistical analysis plan · Apr 14, 2022

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Dec 2021 to primary completion in Dec 2022, 12 months.

Results were first posted in Apr 2024, 1 year 3 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 27, 2021
First posted
Oct 7, 2021
StartActual
Dec 2, 2021
Primary completionActual
Dec 31, 2022
CompletionActual
Dec 31, 2022
Results first posted
Apr 5, 2024
Last update
Apr 5, 2024
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 5, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05070754
Collaborators
The Skin Center Dermatology Group
Responsible party
Lara Wine Lee (Assistant Professor, Dermatology and Dermatologic Surgery, Medical University of South Carolina) — Principal investigator
First posted
Oct 7, 2021
Start date
Dec 2, 2021
Primary completion
Dec 31, 2022
Completion
Dec 31, 2022
Results posted
Apr 5, 2024
Last update
Apr 5, 2024

Study contacts

Lara Wine Lee, MD, PhD
principal investigator · Medical University of South Carolina

Oversight

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

Not currently enrolling

This study is completed, as verified in Mar 2024. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion