Trial Outcomes & Findings for CellFX System for the Treatment of Cutaneous Non-Genital Warts (NCT NCT04554394)

NCT ID: NCT04554394

Last Updated: 2023-07-27

Results Overview

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

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

62 participants

Primary outcome timeframe

60-days post-last CellFX treatment

Results posted on

2023-07-27

Participant Flow

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.

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

Unit of analysis: lesions

Participant milestones

Participant milestones
Measure
CellFX Treated Warts
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.
Non-Treated Controls
Non-treated wart arm, one study wart per enrolled subject.
Overall Study
STARTED
62 195
62 62
Overall Study
COMPLETED
53 136
53 53
Overall Study
NOT COMPLETED
9 59
9 9

Reasons for withdrawal

Reasons for withdrawal
Measure
CellFX Treated Warts
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.
Non-Treated Controls
Non-treated wart arm, one study wart per enrolled subject.
Overall Study
Clinical Site Closed due to COVID-19 Restrictions
4
4
Overall Study
Withdrawal by Subject
2
2
Overall Study
Lost to Follow-up
2
2
Overall Study
Physician Decision
1
1

Baseline Characteristics

CellFX System for the Treatment of Cutaneous Non-Genital Warts

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
CellFX Treated Verrucae
n=62 Participants
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.
Age, Continuous
47.3 Years
STANDARD_DEVIATION 15.4 • n=5 Participants
Sex: Female, Male
Female
42 Participants
n=5 Participants
Sex: Female, Male
Male
20 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
1 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
2 Participants
n=5 Participants
Race (NIH/OMB)
White
58 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
1 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Region of Enrollment
United States
62 Participants
n=5 Participants
Fitzpatrick Skin Type
Class I
3 Participants
n=5 Participants
Fitzpatrick Skin Type
Class II
27 Participants
n=5 Participants
Fitzpatrick Skin Type
Class III
20 Participants
n=5 Participants
Fitzpatrick Skin Type
Class IV
12 Participants
n=5 Participants
Verrucae Disposition
Treated
195 warts
n=5 Participants
Verrucae Disposition
Control
62 warts
n=5 Participants
Verrucae Disposition
Not treated
10 warts
n=5 Participants
Wart Subtype
Common
195 warts
n=5 Participants
Wart Subtype
Plantar
55 warts
n=5 Participants
Wart Subtype
Flat
17 warts
n=5 Participants
Anatomic Location
Hand
131 warts
n=5 Participants
Anatomic Location
Foot
79 warts
n=5 Participants
Anatomic Location
Leg
23 warts
n=5 Participants
Anatomic Location
Knee
10 warts
n=5 Participants
Anatomic Location
Ankle
6 warts
n=5 Participants
Anatomic Location
Arm
4 warts
n=5 Participants
Anatomic Location
Elbow
3 warts
n=5 Participants
Anatomic Location
Wrist
3 warts
n=5 Participants
Anatomic Location
Torso
2 warts
n=5 Participants
History of Prior Verrucae Treatment
Cryotherapy
49 warts
n=5 Participants
History of Prior Verrucae Treatment
Over the Counter Medical Treatment
40 warts
n=5 Participants
History of Prior Verrucae Treatment
Laser Treatment
10 warts
n=5 Participants
History of Prior Verrucae Treatment
Over the Counter and Laser Treatment
8 warts
n=5 Participants
History of Prior Verrucae Treatment
Electrocautery
7 warts
n=5 Participants
History of Prior Verrucae Treatment
Cantharone and Cryotherapy
4 warts
n=5 Participants
History of Prior Verrucae Treatment
Investigational Product
2 warts
n=5 Participants
History of Prior Verrucae Treatment
Aldara and Cryotherapy
1 warts
n=5 Participants
History of Prior Verrucae Treatment
Laser Treatment and Cryotherapy
1 warts
n=5 Participants
History of Prior Verrucae Treatment
Yeast Injection
1 warts
n=5 Participants

PRIMARY outcome

Timeframe: 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.

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

Outcome measures

Outcome measures
Measure
Warts Treated With CellFX (Common, Flat, and Plantar)
n=136 common 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.
Percentage of Verrucae Cleared
67.6 percentage of verrucae clearance

SECONDARY outcome

Timeframe: 60-days post-last CellFX treatment

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

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)

Outcome measures

Outcome measures
Measure
Warts Treated With CellFX (Common, Flat, and Plantar)
n=133 total treated warts
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.
Subject Satisfaction
73.7 percentage of participants

Adverse Events

CellFX Treated Wart Lesion

Serious events: 0 serious events
Other events: 8 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
CellFX Treated Wart Lesion
n=62 participants at risk
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.
Nervous system disorders
Peripheral Sensory Neuropathy
3.2%
2/62 • Number of events 3 • 4 months after initial CellFX Treatment
General disorders
Pain
3.2%
2/62 • Number of events 2 • 4 months after initial CellFX Treatment
Infections and infestations
Infection
4.8%
3/62 • Number of events 3 • 4 months after initial CellFX Treatment
General disorders
Numbness and swelling
1.6%
1/62 • Number of events 1 • 4 months after initial CellFX Treatment

Additional Information

William A. Knape

Pulse Biosciences, Inc.

Phone: (919) 757-2033

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place

Restriction type: GT60