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A Study of Patidegib Topical Gel, 2%, for the Reduction of Disease Burden of Persistently Developing Basal Cell Carcinomas in Patients With Non-Gorlin High Frequency BCC

A Multicenter, Randomized, Double Blind, Vehicle-controlled, Phase 2 Efficacy and Safety Study of Patidegib Topical Gel, 2%, for the Reduction of Disease Burden of Persistently Developing Basal Cell Carcinomas (BCCs) in Patients With Non-Gorlin High Frequency BCC

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04155190
Enrollment
50
Registered
2019-11-07
Start date
2019-12-20
Completion date
2021-04-23
Last updated
2026-07-21

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

Conditions

Recurrent Basal Cell Carcinoma

Keywords

High Frequency Basal Cell Carcinoma, non-gorlin, HF-BCC, Bazex-Dupré-Christol Syndrome, Rombo Syndrome, Oley Syndrome, Xeroderma Pigmentosum (XP) Syndrome, BCC, SEB, Hedgehog inhibitor, Basal Cell Nevus Syndrome, Basal Cell Carcinoma, Surgically Eligible Basal Cell Carcinoma, patidegib, HFBCC, HHI

Brief summary

This is a multicenter, randomized, double-blind, stratified, vehicle-controlled study of the efficacy and safety of Patidegib Topical Gel, 2%, applied topically twice daily to the face of adult participants with non-Gorlin HF-BCC (high-frequency basal cell carcinoma). Participants will be randomized (1:1) to receive either Patidegib Topical Gel, 2%, or Vehicle for 9 months. Randomization will be stratified by gender. The primary endpoint is the number of nSEB (surgically eligible basal cell carcinoma) that develop on the face over the 9 month period. The primary end point will be assessed by imaging and tracking of BCCs consistently throughout the study in order to identify nSEBs.

Interventions

Patidegib Topical Gel, 2%

Patidegib Topical Gel, Vehicle

Sponsors

Sol-Gel Technologies, Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Masking description

As a double-blinded study, the Investigators, the site staff, PellePharm, and the Clinical Monitor(s) will be blinded to the treatment assigned to individual subjects. Delegated staff members at the study site will dispense the investigational product (IP) and will collect and weigh all used and unused IP tubes.

Intervention model description

Participants will be randomized (1:1) to receive either Patidegib Topical Gel, 2%, or Vehicle for 9 months. Randomization will be stratified by gender.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. The subject must have had at least 10 (with at least 3 on the face) clinically typical BCCs present within 24 months prior to Screening and Randomization (Baseline/Day 1). Additionally, the subject must have at least 2 BCCs with longest diameter \<5 mm present on the face prior to Screening and Randomization (Baseline/Day 1). 2. The subject must be willing to abstain from application of a non-study topical medication (prescription or over the counter) to facial skin for the duration of the trial except as prescribed by the Investigator.

Exclusion criteria

1. The subject has been previously diagnosed with Gorlin syndrome 2. On medical history, family history or clinical examination there is a suspicion that the patient has Gorlin syndrome. 3. Patients with a family history of medulloblastoma 4. The subject has used topical treatment to the face or systemic therapies that might interfere with the evaluation of the study IP. 5. The subject has uncontrolled systemic disease. 6. The subject has been treated for invasive cancer within the past 5 years excluding non-melanoma skin cancer, Stage I cervical cancer, ductal carcinoma in situ of the breast, or chronic lymphocytic leukemia (CLL) Stage 0.

Design outcomes

Primary

MeasureTime frame
Number of Participants With New Surgically Eligible Basal Cell Carcinomas (nSEBs)Up to 9 months

Secondary

MeasureTime frameDescription
Number of Participants With Treatment-emergent Adverse Events (TEAEs)Up to 9 monthsTEAEs were defined as AEs that started on or after the first dose of study drug. A summary of serious and non-serious AEs regardless of causality is located in 'Reported Adverse Events module'.

Countries

United States

Contacts

STUDY_DIRECTORVP, Clinical Operations

PellePharm, Inc.

Participant flow

Recruitment details

The study was terminated early by the previous responsible party (PellePharm Inc.) on 15-Jun-2021 due to low blinded event rate. Data presented in this results posting reflect the data collected prior to study termination by the previous responsible party, PellePharm Inc., and are reported by the current responsible party, Sol-Gel Technologies Ltd.

Pre-assignment details

The study was originally planned as a 2-arm study. However, participant-level data were collected and reported only in aggregate for the overall study, rather than by treatment arm for participant flow, study outcome measures, all-cause mortality, and adverse event data. The current Sponsor (Sol-Gel) prepared a Note to File for the Statistical Analysis Plan (SAP) to document how the data were collected.

Baseline characteristics

Characteristic
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
20 Participants
Age, Categorical
Between 18 and 65 years
11 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
24 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
0 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 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
47 Participants
Sex: Female, Male
Female
15 Participants
Sex: Female, Male
Male
16 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 47
other
Total, other adverse events
0 / 47
serious
Total, serious adverse events
2 / 47

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 22, 2026