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CellFX System for the Treatment of Cutaneous Non-Genital Warts

A Prospective, Non-Randomized, Multicenter Pivotal Study of Nano-Pulse Stimulation™ (NPS™) Treatment of Cutaneous Non-Genital Warts

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04554394
Enrollment
62
Registered
2020-09-18
Start date
2019-07-17
Completion date
2020-12-01
Last updated
2023-07-27

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

Conditions

Verruca, Warts, Warts Hand

Keywords

CellFX, Nano-Pulse Stimulation, NPS, Clearance

Brief summary

This prospective, non-randomized, multicenter pivotal study is designed to evaluate the safety and effectiveness of the CellFX System in patients with cutaneous non-genital warts on all areas of the body, excluding the face.

Detailed description

The study will enroll healthy adult subjects with a minimum of two cutaneous non-genital warts, excluding the face, with each wart lesion not exceeding 10 x 10mm. One of the warts for each subject will be untreated and will serve as the subject's internal control. Macrophotography of all study warts will be captured along with Investigator assessments using the Wart Measurement Scale (WMS) and lesion measurements for wart reduction. All subjects will be followed at 7, 30, 60, 90 and 120-days post-initial CellFX treatment. All wart lesions are eligible for re-treatment up to 3 times over the course of the study. Adverse events will be documented.

Interventions

DEVICECellFX Device

The CellFX System utilizes non-thermal, localized delivery of a timed series of low energy, nanosecond electrical pulses that can trigger regulated cell death.

Sponsors

Pulse Biosciences, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
21 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Subjects must be at least 21 and not older than 80 years of age * Subjects must be able to read and speak English or Spanish * Subjects must sign a written informed consent to participate in the study, prior to any study related procedures * Subject must have a minimum of two cutaneous non-genital warts, each not exceeding 10 x 10mm * Subject is willing to undergo all study-mandated procedures * Subject agrees to refrain from using all other wart removal products or treatments (topical medication including over-the-counter medications) during the study period

Exclusion criteria

* Subject has an implantable electronic medical device. (pacemaker, implantable cardioverter defibrillator, etc.) * Subject has cochlear implants * Subject has an active systemic infection or history of an infection in the designated treatment area within 90 days of enrollment * Subject has a history of and/or current tinnitus * Subject is known to be immune-compromised * Subject is taking a blood thinning medication (Antiplatelet, Anticoagulation, Factor Xa Inhibitor, etc.) * Subject has Type 1 Diabetes and is insulin dependent * Subject has a known allergy to Lidocaine or Lidocaine-like products * Subject is a member of a vulnerable population including individuals employed by the Sponsor, clinic site, or entity associated with the conduct of the study * Subject has a comorbidity or condition which may reduce compliance with this protocol, including follow-up visits * Subject is participating in another research study involving an investigational agent (pharmaceutical, biologic, or medical device)

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Verrucae Cleared60-days post-last CellFX treatmentPercentage of Verrucae with Clearance (91-100% reduction)

Secondary

MeasureTime frameDescription
Subject Satisfaction60-days post-last CellFX treatmentSatisfaction with reduction in verrucae size or clearance of verrucae measured using the following scale; 5 (Satisfied), 4 (Mostly Satisfied), 3 (Partially Satisfied), 2 (Dissatisfied), 1 (Highly Dissatisfied)

Countries

United States

Participant flow

Recruitment details

A total of 62 study subjects were enrolled. A total of 257 warts were studied, including 195 warts assigned to treatment and 62 assigned to control arm.

Pre-assignment details

62 subjects were enrolled. One wart per subject was randomized and pre-assigned as the control.

Participants by arm

ArmCount
CellFX Treated Verrucae
CellFX device using pre-defined energy protocols CellFX Device: The CellFX System utilizes non-thermal, localized delivery of a timed series of low energy, nanosecond electrical pulses that can trigger regulated cell death.
62
Total62

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyClinical Site Closed due to COVID-19 Restrictions44
Overall StudyLost to Follow-up22
Overall StudyPhysician Decision11
Overall StudyWithdrawal by Subject22

Baseline characteristics

CharacteristicCellFX Treated Verrucae
Age, Continuous47.3 Years
STANDARD_DEVIATION 15.4
Anatomic Location
Ankle
6 warts
Anatomic Location
Arm
4 warts
Anatomic Location
Elbow
3 warts
Anatomic Location
Foot
79 warts
Anatomic Location
Hand
131 warts
Anatomic Location
Knee
10 warts
Anatomic Location
Leg
23 warts
Anatomic Location
Torso
2 warts
Anatomic Location
Wrist
3 warts
Fitzpatrick Skin Type
Class I
3 Participants
Fitzpatrick Skin Type
Class II
27 Participants
Fitzpatrick Skin Type
Class III
20 Participants
Fitzpatrick Skin Type
Class IV
12 Participants
History of Prior Verrucae Treatment
Aldara and Cryotherapy
1 warts
History of Prior Verrucae Treatment
Cantharone and Cryotherapy
4 warts
History of Prior Verrucae Treatment
Cryotherapy
49 warts
History of Prior Verrucae Treatment
Electrocautery
7 warts
History of Prior Verrucae Treatment
Investigational Product
2 warts
History of Prior Verrucae Treatment
Laser Treatment
10 warts
History of Prior Verrucae Treatment
Laser Treatment and Cryotherapy
1 warts
History of Prior Verrucae Treatment
Over the Counter and Laser Treatment
8 warts
History of Prior Verrucae Treatment
Over the Counter Medical Treatment
40 warts
History of Prior Verrucae Treatment
Yeast Injection
1 warts
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
2 Participants
Race (NIH/OMB)
More than one race
1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
58 Participants
Region of Enrollment
United States
62 Participants
Sex: Female, Male
Female
42 Participants
Sex: Female, Male
Male
20 Participants
Verrucae Disposition
Control
62 warts
Verrucae Disposition
Not treated
10 warts
Verrucae Disposition
Treated
195 warts
Wart Subtype
Common
195 warts
Wart Subtype
Flat
17 warts
Wart Subtype
Plantar
55 warts

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 62
other
Total, other adverse events
8 / 62
serious
Total, serious adverse events
0 / 62

Outcome results

Primary

Percentage of Verrucae Cleared

Percentage of Verrucae with Clearance (91-100% reduction)

Time frame: 60-days post-last CellFX treatment

Population: Percent of verrucae clearance observed at 60-days post-last treatment. Reduction in verrucae size and/or clearance not assessed in the Non-treated Control Arm/Group or similar.

ArmMeasureValue (NUMBER)
Warts Treated With CellFX (Common, Flat, and Plantar)Percentage of Verrucae Cleared67.6 percentage of verrucae clearance
Secondary

Subject Satisfaction

Satisfaction with reduction in verrucae size or clearance of verrucae measured using the following scale; 5 (Satisfied), 4 (Mostly Satisfied), 3 (Partially Satisfied), 2 (Dissatisfied), 1 (Highly Dissatisfied)

Time frame: 60-days post-last CellFX treatment

Population: All Treated Verrucae observed at 60-days post-last CellFX treatment

ArmMeasureValue (NUMBER)
Warts Treated With CellFX (Common, Flat, and Plantar)Subject Satisfaction73.7 percentage of participants

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