ClinicalTrials.gg
CompletedNCT03612570Updated Apr 12, 2024Results posted

Nano-Pulse Stimulation (NPS) in Sebaceous Hyperplasia

An interventional study of Nano-Pulse Stimulation Device in Skin Lesion, Skin Abnormalities and Sebaceous Hyperplasia, sponsored by Pulse Biosciences, Inc.. Completed at 5 sites in United States. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2024-04-12.

Sponsored by Pulse Biosciences, Inc. · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
72
Allocation
Not applicable
Ages
18 Years to 70 Years
Sex
All
01

Study summary

This prospective, open label, muti-center study evaluates the use of Nano-Pulse Stimulation (NPS) in the treatment of Sebaceous Hyperplasia (SH) lesions less than 2.5mm in size.

Read the detailed description

The study is designed with each subject serving as his or her own control. A total of up to 75 subjects with 2-5 qualifying SH lesions will be enrolled and treated with either a 1.5-mm x 1.5-mm or 2.5-mm x 2.5-mm tip. All treated lesions will receive at least one NPS treatment and evaluated at 30 days for lesion clearance. Initial lesions scored as Not Clear or Partially Clear may undergo a second NPS treatment. All subjects will have their lesions evaluated at 60 days post-primary or secondary treatment.

02

Conditions studied

  • Skin Lesion
  • Skin Abnormalities
  • Sebaceous Hyperplasia

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Keywords

  • Nano-Pulse Stimulation
  • NPS
03

In context

Skin Abnormalities

39 studies on the registry are indexed under Skin Abnormalities; 7 are open to participants now.

This study's enrollment of 72 is above the median of 39 across 26 interventional studies indexed under Skin Abnormalities.

Browse Skin Abnormalities studies →

Lead sponsor

Pulse Biosciences, Inc. is the lead sponsor of 15 studies on the registry; 5 are open to participants now.

Of its 8 completed or terminated interventional studies of FDA-regulated products, 6 (75%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 70 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

  • Males or females
  • Presents with at least 2 and up to 5 clinically visible SH lesions
  • Understands that 1 lesion will remain untreated to act as a reference
  • Lesions must measure no greater than 2.5 x 2.5 at the outside margin
  • Wishes to have at least 1 and perhaps 2 NPS treatments to each study lesion
  • Selection of the non-treated reference lesion will be randomly identified
  • Willing to return for 4 or 5 total study visits at specified intervals over 60 or 90 days
  • Agrees to photographic or other image capture methods of both the treated and untreated lesions.
  • Agrees to avoid any other treatment to the NPS treated and untreated SH lesions until the end of the NPS study
  • Has no evidence of active infection in the designated tissue prior to treatment and reports no infection within 90 days
  • Is not allergic to Lidocaine or Lidocaine-like products

Exclusion criteria

Exclusion Criteria:

  • Presence of Implantable electronic devices that cannot be removed. e.g., pacemaker or automatic defibrillator
  • Taking medications prescribed for cardiac arrhythmia at any time within 6 months prior to exposure to the NPS device
  • SH lesions are located within the eye orbit or on the nose
  • Active infection or history of infection in designated test area within 90 days prior to study initiation
  • Use of oral and/or retinoid use within the last 12 months
  • Prior treatment to the identified SH lesions targeted for the study which occurred within 6 months prior to study start
  • Is known to be immune-compromised and/or received therapy within 6 months prior to study start
  • Taking blood thinning medications
  • Has Insulin dependent diabetes
  • Is known to be pregnant or lactating female
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.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

05

Study design

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

Study arms

  • Experimental
    NPS Treated SH Lesion

    Nano-Pulse Stimulation Device using pre-defined energy protocol

    Device: Nano-Pulse Stimulation Device

Interventions

  • DeviceNano-Pulse Stimulation Device

    NPS utilizes a timed series of low energy, high voltage nanosecond (billionth of a second) pulses which are applied directly to targeted tissue using small microneedles. NPS energy induces cell signaling and the activation of cellular pathways by creating transient nanopores in cellular membranes and organelles and initiate regulated cell death.

06

What researchers measure

Primary outcomes

  1. Total Number of Cleared SH Lesions

    SH lesion clearance was assessed live by investigators for each treated SH lesion (n=222) at 60-days post-last treatment using a 4-point scale (i.e., 0, 1, 2, 3) where each number corresponded to Clear, Mostly Clear, Partially Clear, or Not Clear, respectively. Lower scores mean better outcome, i.e., 0=Clear while a 3=Not Clear.

    Time frame: 60-days follow-up post-last treatment

07

Results

Posted Apr 12, 2024

Participant flow

Participant flow — Overall Study
MilestoneNumber of Study Participants
Started72
Completed71
Not completed1
Withdrew: Lost to follow-up1

Outcome measures

PrimaryTotal Number of Cleared SH Lesions

SH lesion clearance was assessed live by investigators for each treated SH lesion (n=222) at 60-days post-last treatment using a 4-point scale (i.e., 0, 1, 2, 3) where each number corresponded to Clear, Mostly Clear, Partially Clear, or Not Clear, respectively. Lower scores mean better outcome, i.e., 0=Clear while a 3=Not Clear.

Time frame:
60-days follow-up post-last treatment
Reported as:
Number · Percentage of cleared SH Lesions
Total Number of Cleared SH Lesions
Percentage of cleared SH LesionsTotal Number of Cleared Lesions With Sebaceous Hyperplasia (SH)
Total Number of Cleared SH Lesions99.5

Adverse events

Collected over Skin effects (hyperpigmentation) were observed per SH lesion at the 5-day, 30-day, 60-day and if applicable 90-day follow-up periods.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
NPS Treated Sebaceous Hyperplasia (SH) Lesion0/71 (0%)0/71 (0%)32/71 (45.1%)
Most frequent other events
Most frequent other events
EventNPS Treated Sebaceous Hyperplasia (SH) Lesion
Post-Inflammatory HyperpigmentationSkin and subcutaneous tissue disorders32/71

Baseline characteristics

One Participant was not seen at follow-up after being treated or enrolled into the study.

Age, Continuous
Age, Continuous(Years)All Participants
Mean55 (31 to 71)
Sex: Female, Male
Sex: Female, Male(Participants)All Participants
Female56
Male16
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)All Participants
Hispanic or Latino1
Not Hispanic or Latino71
Unknown or Not Reported0
Race (NIH/OMB)
Race (NIH/OMB)(Participants)All Participants
American Indian or Alaska Native0
Asian3
Native Hawaiian or Other Pacific Islander0
Black or African American0
White69
More than one race0
Unknown or Not Reported0
Region of Enrollment
Region of Enrollment(participants)All Participants
United States72
08

Study locations

5 sites
  • Laser & Skin Surgery Medical Group, Inc.
    Sacramento, California 95816, United States
  • Premier Plastic Surgery
    San Mateo, California 94401, United States
  • Skin Care Physicians
    Chestnut Hill, Massachusetts 02467, United States
  • Zel Skin & Laser Specialists
    Edina, Minnesota 55424, United States
  • Dermatology, Laser & Vein Specialists of the Carolinas, PLLC
    Charlotte, North Carolina 28207, United States
09

References and documents

Publications

  • Munavalli GS, Zelickson BD, Selim MM, Kilmer SL, Rohrer TE, Newman J, Jauregui L, Knape WA, Ebbers E, Uecker D, Nuccitelli R. Safety and Efficacy of Nanosecond Pulsed Electric Field Treatment of Sebaceous Gland Hyperplasia. Dermatol Surg. 2020 Jun;46(6):803-809. doi: 10.1097/DSS.0000000000002154. PubMed 31592824 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Jun 2018 to primary completion in Sep 2018, 2 months.

Results were first posted in Apr 2024, 5 years 7 months after primary completion.

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

Registered
Jul 27, 2018
First posted
Aug 2, 2018
StartActual
Jun 28, 2018
Primary completionActual
Sep 5, 2018
CompletionActual
Nov 28, 2018
Results first posted
Apr 12, 2024
Last update
Apr 12, 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 12, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03612570
Lead sponsor
Pulse Biosciences, Inc.
Responsible party
Sponsor
First posted
Aug 2, 2018
Start date
Jun 28, 2018
Primary completion
Sep 5, 2018
Completion
Nov 28, 2018
Results posted
Apr 12, 2024
Last update
Apr 12, 2024

Study contacts

Richard Nuccitelli, PhD
study chair · Pulse Biosciences, Inc.

Oversight

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

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

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