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Trial · NCT03691831

A Study of A-101 Topical Solution for the Treatment of Common Warts

NCT03691831, Phase 3, Completed, Aclaris Therapeutics, Inc.; results first posted 2020-10-05

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. A Study of A-101 Topical Solution for the Treatment of Common Warts. Trials, record NCT03691831. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03691831

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
A Study of A-101 Topical Solution for the Treatment of Common Warts
NCT number
NCT03691831
Status
Completed
Phases
Phase 3
Enrollment
502 participants, actual
Lead sponsor
Aclaris Therapeutics, Inc.
Conditions
Common Wart
Interventions
Active, Vehicle
First posted
2018-10-02
Last updated
2020-10-27
Results first posted
2020-10-05

Source ClinicalTrials.gov

Registered outcomes5

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryThe Primary Efficacy Endpoint is the Number of Subjects Whose Identified Common Warts Are Determined to be Clear on the PWA Scale (PWA=0) at Visit 10 (Day 60)Day 60
The primary efficacy endpoint is the number of subjects whose identified common warts are determined to be clear on the Physician Wart Assessment (PWA) scale (PWA=0) at Visit 10 (Day 60). Efficacy will be assessed using the Physician's Wart Assessment Scale (PWA) which is a 4 point scale. A higher amount of warts cleared represents a better outcome.
SecondaryNumber of Subjects With Complete Clearance of All Treated Common Warts Between Active and Vehicle on the Physician Wart Assessment (PWA) Scale (PWA=0) at Visit 13 (Day 137)Day 137
Number of subjects whose identified common warts are determined to be clear on the Physician Wart Assessment (PWA) scale (PWA=0) at Visit 13 (Day 137). Efficacy will be assessed using the Physician's Wart Assessment Scale (PWA) which is a 4 point scale. A higher amount of warts cleared represents a better outcome.
SecondaryMean Per-Subject Percent of All Warts That Were Clear on the Physician Wart Assessment (PWA) Scale Between Active and Vehicle That Are Clear (PWA=0) at Visit 13 (Day 137)Day 137
Mean Per-Subject Percent of all Warts that were Clear on the Physician Wart Assessment (PWA) scale between Active (A-101 45%) and Vehicle that are clear (PWA=0) at Day 137. Clearance of all treated warts will be assessed using the Physician Wart Assessment (PWA) scale which is a four point scale. A higher amount of warts cleared represents a better outcome.
SecondaryNumber of Subjects With a Single Wart at Baseline Whose Wart Was Clear on the PWA Scale Between Active and Vehicle Group (PWA=0) at Visit 10 (Day 60)Day 60
Comparison between Active (A-101 45%) and Vehicle of subjects with a single wart at baseline, whose wart is clear (PWA=0) at Day 60. Clearance of the single wart at baseline will be assessed using the Physician Wart Assessment (PWA) scale which is a four point scale. A higher amount of warts cleared represents a better outcome.
SecondaryMedian Time for Subjects to Achieve Clearance (PWA=0) of All Treated Common WartsDay 137
Comparison between Active (A-101 45%) and Vehicle with respect to the median time to achieve onset of clearance (PWA=0) for all treated warts at Day 137. Clearance of all treated warts will be assessed using the Physician Wart Assessment (PWA) scale which is a four point scale. A higher amount of warts cleared represents a better outcome.

Outcomes5

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYThe Primary Efficacy Endpoint is the Number of Subjects Whose Identified Common Warts Are Determined to be Clear on the PWA Scale (PWA=0) at Visit 10 (Day 60)Day 60The study's primary endpoint was to evaluate the amount of patients achieving a clearance of all baseline WARTS. Patients were stratified by the amount of WARTS at Baseline.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYNumber of Subjects With Complete Clearance of All Treated Common Warts Between Active and Vehicle on the Physician Wart Assessment (PWA) Scale (PWA=0) at Visit 13 (Day 137)Day 137The study's primary endpoint was to evaluate the amount of patients achieving a clearance of all baseline WARTS. Patients were stratified by the amount of WARTS at Baseline.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYMean Per-Subject Percent of All Warts That Were Clear on the Physician Wart Assessment (PWA) Scale Between Active and Vehicle That Are Clear (PWA=0) at Visit 13 (Day 137)Day 137percentage of warts clearedMEAN
SECONDARYNumber of Subjects With a Single Wart at Baseline Whose Wart Was Clear on the PWA Scale Between Active and Vehicle Group (PWA=0) at Visit 10 (Day 60)Day 60ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYMedian Time for Subjects to Achieve Clearance (PWA=0) of All Treated Common WartsDay 137A median was not able to be calculated in the Vehicle group due to an insufficient number of participants with events.daysMEDIAN

Results by group26

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
The Primary Efficacy Endpoint is the Number of Subjects Whose Identified Common Warts Are Determined to be Clear on the PWA Scale (PWA=0) at Visit 10 (Day 60)ActiveWarts at Baseline - All33Participants
The Primary Efficacy Endpoint is the Number of Subjects Whose Identified Common Warts Are Determined to be Clear on the PWA Scale (PWA=0) at Visit 10 (Day 60)VehicleWarts at Baseline - All8Participants
The Primary Efficacy Endpoint is the Number of Subjects Whose Identified Common Warts Are Determined to be Clear on the PWA Scale (PWA=0) at Visit 10 (Day 60)ActiveWarts at Baseline - 119Participants
The Primary Efficacy Endpoint is the Number of Subjects Whose Identified Common Warts Are Determined to be Clear on the PWA Scale (PWA=0) at Visit 10 (Day 60)VehicleWarts at Baseline - 14Participants
The Primary Efficacy Endpoint is the Number of Subjects Whose Identified Common Warts Are Determined to be Clear on the PWA Scale (PWA=0) at Visit 10 (Day 60)ActiveWarts at Baseline - 29Participants
The Primary Efficacy Endpoint is the Number of Subjects Whose Identified Common Warts Are Determined to be Clear on the PWA Scale (PWA=0) at Visit 10 (Day 60)VehicleWarts at Baseline - 20Participants
The Primary Efficacy Endpoint is the Number of Subjects Whose Identified Common Warts Are Determined to be Clear on the PWA Scale (PWA=0) at Visit 10 (Day 60)ActiveWarts at Baseline - 33Participants
The Primary Efficacy Endpoint is the Number of Subjects Whose Identified Common Warts Are Determined to be Clear on the PWA Scale (PWA=0) at Visit 10 (Day 60)VehicleWarts at Baseline - 30Participants
The Primary Efficacy Endpoint is the Number of Subjects Whose Identified Common Warts Are Determined to be Clear on the PWA Scale (PWA=0) at Visit 10 (Day 60)ActiveWarts at Baseline - >32Participants
The Primary Efficacy Endpoint is the Number of Subjects Whose Identified Common Warts Are Determined to be Clear on the PWA Scale (PWA=0) at Visit 10 (Day 60)VehicleWarts at Baseline - >34Participants

Participant flow6

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDActive251
Overall StudySTARTEDVehicle251
Overall StudyCOMPLETEDActive224
Overall StudyCOMPLETEDVehicle220
Overall StudyNOT COMPLETEDActive27
Overall StudyNOT COMPLETEDVehicle31

Adverse events172

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherVomitingGastrointestinal disordersActive1251
otherVomitingGastrointestinal disordersVehicle2251
otherApplication site dermatitisGeneral disordersActive3251
otherApplication site dermatitisGeneral disordersVehicle1251
otherApplication site discolorationGeneral disordersActive4251
otherApplication site discolorationGeneral disordersVehicle1251
otherApplication site drynessGeneral disordersActive2251
otherApplication site drynessGeneral disordersVehicle0251
otherApplication site erosionGeneral disordersActive13251
otherApplication site erosionGeneral disordersVehicle4251

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityActive0251
Total, all-cause mortalityVehicle0251
Total, other adverse eventsActive154251
Total, other adverse eventsVehicle61251
Total, serious adverse eventsActive1251
Total, serious adverse eventsVehicle2251

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons3

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
Active vs Vehicle: Number of Subjects With a Single Wart at Baseline Whose Wart Was Clear on the PWA Scale Between Active and Vehicle Group (PWA=0) at Visit 10 (Day 60)Trial comparisons
Active vs Vehicle: deaths from any causeTrial comparisons
Active vs Vehicle: serious adverse eventsTrial comparisons

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT03691831

GET https://conductscience.org/api/trials/v1/NCT03691831/results?page=2