Trial of Patidegib Gel 2%, 4%, and Vehicle to Decrease the Number of Surgically Eligible Basal Cell Carcinomas in Gorlin Syndrome Patients

• Sponsor: PellePharm, Inc. (Industry)
• Overall Status: Completed
• CT.gov ID: NCT02762084
• Collaborator: (none)
• Enrollment: 17
• Locations: 2
• Arms: 3
• Actual Duration (Months): 10.6
• Patients Per Site: 8.5
• Patients Per Site Per Month: 0.8

Study Details

Study Description

Brief Summary

Multicenter, double-blind, randomized, vehicle-controlled study that evaluates the efficacy and safety of patidegib gel 2% and 4% in comparison with vehicle in participants at least 18 years of age that meet the diagnostic criteria for basal cell nevus syndrome (BCNS). Participants will be randomized to receive patidegib gel 2%, patidegib gel 4%, or the vehicle gel for a 26-week treatment period.

Condition or Disease	Intervention/Treatment	Phase
Basal Cell Nevus Syndrome	Drug: Patidegib; Drug: Vehicle gel	Phase 2

Detailed Description

Participants who meet the study entry criteria will be randomized in a 1:1:1 ratio to receive patidegib gel 2%, patidegib gel 4%, vehicle gel. One or two tubes of the assigned study drug will be dispensed to the participant at the Baseline visit. Additional tubes will be dispensed at subsequent visits through Week 22. The study drug will be applied topically to the entire face as well as to treatment-targeted surgically eligible basal cell carcinomas (SEBs) at other anatomical sites twice daily for 26 weeks of treatment.

Information on reported and observed adverse events will be obtained at each visit. An abbreviated physical examination will be performed at Baseline, Week 14, and Week 26.

At Baseline and Weeks 6, 10, 14, 18, 22, and 26, all visible basal cell carcinomas (BCCs) (excluding areas below the knees) will be identified by the Investigator, circled in ink, photographed, measured, and recorded on a body diagram. Treatment-targeted SEBs (defined as the 5 SEBs on the face and/or other anatomical areas identified at Baseline as SEBs) will be treated during the 26-week treatment phase. If a participant has 5 eligible previously untreated facial SEBs (excluding tumors on nose and eyelids) these tumors will be the participant's 5 baseline treatment-targeted SEBs and non-facial baseline SEBs will not be treated with study drug. Tumors to be measured and mapped include the 5 baseline treatment-targeted tumors as well as all other facial tumors including those on the eyelids and the nose. In addition, up to 10 non-treatment-targeted non-facial tumors will also be measured and mapped.

Study Design

• Study Type: Interventional
• Actual Enrollment: 17 participants
• Allocation: Randomized
• Intervention Model: Parallel Assignment
• Masking: Double (Participant, Investigator)
• Primary Purpose: Treatment
• Official Title: Double-Blind, Randomized, Vehicle-Controlled Proof of Concept Clinical Trial of Patidegib Gel 2%, 4%, and Vehicle to Decrease the Number of Surgically Eligible Basal Cell Carcinomas in Gorlin Syndrome Patients
• Actual Study Start Date: Jun 6, 2016
• Actual Primary Completion Date: Apr 24, 2017
• Actual Study Completion Date: Apr 24, 2017

Arms and Interventions

Arm	Intervention/Treatment
Experimental: Patidegib gel 2% Patidegib gel 2%, applied topically, twice daily for 26 weeks	Drug: Patidegib; Other Names: Study drug
Experimental: Patidegib gel 4% Patidegib gel 4%, applied topically, twice daily for 26 weeks	Drug: Patidegib; Other Names: Study drug
Placebo Comparator: Vehicle gel Vehicle gel, applied topically, twice daily for 26 weeks	Drug: Vehicle gel; Other Names: Placebo

Outcome Measures

Primary Outcome Measures

1. Clinical Efficacy: Percent Change in Tumor Size of Treatment-targeted Surgically Eligible Basal Cell Carcinomas (SEBs) From Baseline [Baseline, Week 26]

   SEBs were defined as clinically diagnosed basal cell carcinoma (BCC) 5 millimeters (mm) or greater in diameter on the face, excluding the nose and periorbital skin, and 9 mm or greater at sites other than the face. The percent change in greatest diameters of treatment-targeted surgically eligible basal cell carcinomas (SEBs) from Baseline to Week 26 was calculated as follows: (sum [Baseline] - sum [Week 26] / sum [Baseline] * 100), where sum = the greatest diameters of Baseline treatment-targeted SEBs and positive numbers represent decrease in tumor size and negative numbers to represent increase in tumor size. Missing values were imputed using Last-Observation Carried Forward (LOCF).

2. Molecular Efficacy: Percent Change in the Hedgehog (HH) Signaling Pathway Target Gene Glioma-associated Oncogene Homolog 1 (GLI1) Messenger Ribonucleic Acid (mRNA) Levels From Baseline [Baseline, Week 6]

   SEBs were defined as clinically diagnosed BCC 5 mm or greater in diameter on the face, excluding the nose and periorbital skin, and 9-mm or greater at sites other than the face. A single baseline SEB designated as a treatment targeted tumor at Baseline was biopsied first at Baseline and again following 6 weeks of treatment. This was used to assess percent change in GLI1 mRNA levels as follows: (Baseline - Week 6) / Baseline * 100, where positive numbers to represent decrease in GL1 mRNA level and negative numbers to represent increase in GL1 mRNA level. Any missing values were not imputed; all available data is summarized.

3. Safety and Tolerability Assessment of Treatment With Patidegib Gel: Number of Participants With a Treatment-emergent Adverse Event Causally Related to Study Drug [Baseline through Week 26]

   All serious adverse events (SAEs) and all other non-serious adverse events (AEs) regardless of causality are located in the Reported AE Module. AEs considered as related where categorized by the Investigator as either definitely related, probably related, or possibly related. Treatment-emergent AEs are those with an onset after use of study drug.

4. Safety and Tolerability Assessment of Treatment With Patidegib Gel: Number of Participants With Treatment-emergent Administrative Site Skin Condition AEs Causally Related to Study Drug [Baseline through Week 26]

   All SAEs and all other non-serious AEs, regardless of causality, are located in the Reported AE Module. The number of participants reporting administrative-site, skin condition treatment-emergent AEs considered related to study drug by the Investigator are presented below. Treatment-emergent AEs are those with an onset after use of study drug.

Secondary Outcome Measures

1. The Number of Participants Reporting New SEBs on the Face From Baseline for the Combined Patidegib Treatment Groups [Baseline, Week 26]

   Facial SEBs were defined as clinically diagnosed BCC 5 mm or greater in diameter on the face, excluding the nose and periorbital skin. A new facial SEB was defined as an SEB first noted on the face after Week 2 that developed at a site where there was no visible BCC of any size at Baseline or Week 2. New facial SEBs were investigated for participants on vehicle gel versus participants on patidegib 2% and 4% gel. Missing values were imputed using LOCF.

2. The Mean Number of New SEBs on the Face for the Combined Patidegib Treatment Groups [Baseline, Week 26]

   Facial SEBs were defined as clinically diagnosed BCC 5 mm or greater in diameter on the face, excluding the nose and periorbital skin. A new facial SEB was defined as an SEB first noted on the face after Week 2 that developed at a site where there was no visible BCC of any size at Baseline or Week 2. New facial SEBs were investigated for participants on vehicle gel versus participants on patidegib 2% and 4% gel. Missing values were imputed using LOCF. The mean number of new SEBs (number per participant) are presented. No measure of dispersion/precision was calculated.

3. The Mean Number of New SEBs on the Face for the Combined Patidegib Treatment Groups by Tumor Population [Baseline, Week 26]

   Facial SEBs were defined as clinically diagnosed BCC 5 mm or greater in diameter on the face, excluding the nose and periorbital skin. A new facial SEB was defined as an SEB first noted on the face after Week 2 that developed at a site where there was no visible BCC of any size at Baseline or Week 2. New facial SEBs were investigated for participants on vehicle gel versus participants on patidegib 2% and 4% gel. Missing values were imputed using LOCF. The mean number of new SEBs (number per participant) are presented. No measure of dispersion/precision was calculated.

4. Percent Change in Baseline Treatment-targeted SEBs Tumor Size From Baseline [Baseline and Weeks 6, 10, 14, 18, and 22]

   SEBs were defined as clinically diagnosed BCC 5 mm or greater in diameter on the face, excluding the nose and periorbital skin, and 9 mm or greater at sites other than the face. The percent change in greatest diameters of Baseline treatment-targeted SEBs from Baseline to Week x (Week 6, 10, 14, 18, or 22) was calculated as follows: (sum [Baseline] - sum [Week x] / sum [Baseline] * 100), where sum = the greatest diameters of Baseline treatment-targeted SEBs, and positive numbers to represent decrease in tumor size and negative numbers to represent increase in tumor size. Missing values were imputed using LOCF.

5. Percent Change in Central Facial SEBs From Baseline [Baseline and Weeks 6, 10, 14, 18, 22, and 26]

   Central facial SEBs were defined as those located on the nose or periorbital area (eyelids) which were 3 mm or greater at Baseline. The percent change from Baseline to Week x (Week x = Weeks 6, 10, 14, 18, 22, or 26) in central facial SEBs was calculated as follows: [sum (Baseline) - sum (Week x)] / [sum (Baseline)] * 100 where sum = the greatest diameters of Baseline treatment-targeted SEBs where positive numbers to represent decrease in tumor size and negative numbers to represent increase in tumor size. Missing values were imputed using LOCF.

6. Proportion of Non-central Facial BCCs Increasing to ≥ 5 mm From Baseline [Baseline and Weeks 6, 10, 14, 18, 22, and 26]

   The proportion of non-central facial BCCs that at Baseline measured a greatest diameter of < 5 mm and increased to a diameter of ≥ 5 mm by Week x (Week x = Weeks 6, 10, 14, 18, 22, or 26) were calculated for each participant as follows: (Number of non-central facial BCCs with greatest diameter ≥ 5 mm at Week x) / (Number of non-central facial BCCs with greatest diameter < 5 mm at Baseline). Missing values were imputed using LOCF.

7. Proportion of Treatment-Targeted SEBs No Longer Classified as SEBs After 26 Weeks [Baseline and Weeks 6, 10, 14, 18, 22, and 26]

   SEBs were defined as clinically diagnosed BCC 5 mm or greater in diameter on the face, excluding the nose and periorbital skin, and 9 mm or greater at sites other than the face. The proportion of Baseline treatment-targeted SEBs that at the end of 26 weeks of treatment were no longer large enough to be classified as SEBs (that is, the proportion of Baseline treatment targeted SEBs on the face that became < 5 mm in greatest diameter and non-facial Baseline treatment targeted SEBs that became < 9 mm in greatest diameter) were calculated for each participant as follows: (Number of Baseline treatment-targeted facial SEBs with greatest diameter < 5 mm) + (Baseline treatment targeted non-facial SEBs with greatest diameter < 9 mm) / Number of baseline treatment targeted SEBs. Missing values were imputed using LOCF.

Other Outcome Measures

1. Percentage of Treatment-targeted SEBs Achieving Clear or Almost Clear on the 5-point Investigator Static Global Tumor Assessment (ISGTA) Scale [Baseline and Weeks 6, 10, 14, 18, 22, and 26]

   The ISGTA is a scale with scores ranging from 0 (clear), 1 (almost clear), 2 (minimal residual tumor), to 3 (clearly visible tumor). The Investigator assessed each Baseline treatment-targeted SEB at Weeks 6, 10, 14, 18, 22, and 26. SEBs were defined as clinically diagnosed BCC 5 mm or greater in diameter on the face, excluding the nose and periorbital skin, and 9 mm or greater at sites other than the face. The percentage of Baseline treatment-targeted SEBs evaluated as being clear or almost clear at Week x (Week x = Week 6, 10, 14, 18, 22 or 26) based on the ISGTA scale was calculated as follows: (Number of baseline treatment-targeted SEBs with ISGTA score of 0 or 1 at Week x) / (Number of Baseline treatment-targeted SEBs) * 100. Missing data were imputed using LOCF. The percentage of responders achieving clear (0) or almost clear (1) on the ISGTA scale are presented by Week.

Eligibility Criteria

Criteria

• Ages Eligible for Study: 18 Years to 85 Years
• Sexes Eligible for Study: All
• Accepts Healthy Volunteers: No

Inclusion Criteria:

1. The participant is from 18 to 85 years of age, inclusive.

2. The participant must provide written informed consent prior to any study procedures.

3. The participant must meet diagnostic criteria for BCNS, including the first listed major criterion below plus one additional major criterion, or the first listed major criterion below plus 2 of the minor criteria outlined below:

Major Criteria:

• More than 2 histologically confirmed BCCs or one under the age of 20 years

• Odontogenic keratocysts of the jaw proven by histology

• Three or more palmar and/or plantar pits

• Bilamellar calcification of the falx cerebri (if less than 20 years old)

• Fused, bifid, or markedly splayed ribs

• First degree relative with basal cell nevus syndrome

• Patched 1 (PTCH1) gene mutation in normal tissue

Minor Criteria:

• Macrocephaly

• Congenital malformations: cleft lip or palate, frontal bossing, "coarse face", moderate or severe hypertelorism

• Skeletal abnormalities: sprengel deformity, marked pectus deformity, or marked syndactyly of the digits

• Radiological abnormalities: bridging of the sella turcica, vertebral anomalies such as hemivertebrae, fusion or elongation of the vertebral bodies, modeling defects of the hands and feet, or flame shaped lucencies of the hands or feet

• Ovarian fibroma

• Medulloblastoma

1. The participant must have a history of at least 10 BCCs in toto present at Baseline and/or treated within 24 months prior to screening.

2. The participant has at Baseline a total of at least 5 previously untreated SEBs (greatest diameter 5 millimeters [mm] or greater on the face excluding the nose and periorbital skin, 9 mm or greater on non-facial areas excluding the skin below the knees), as documented clinically by the Investigator at Baseline. Untreated is define as no previous surgical or topical or intralesional drug treatment. Previous treatment with systemically administered drugs more than 6 months prior to Baseline is not considered previous treatment as long as there was no clinical evidence of resistance to oral hedgehog (HH) pathway inhibitors (such as vismodegib, patidegib, and sonidegib). Baseline treatment-targeted SEBs must not exceed a diameter of >2 centimeters (cm). At least one of these tumors must be appropriate for a 2 mm punch biopsy for biomarker analysis at Baseline and Week 6 visits. If a participant has 5 or more facial, excluding periorbital and nasal skin, SEBs at Baseline, non-facial SEBs will not be treatment-targeted SEBs.

3. The participant is willing to have SEBs biopsied for biomarkers and plasma to be collected to measure drug levels as required in the protocol.

4. The participant is willing to abstain from application of non-study topical prescription and over the counter medications to facial skin and within 5 cm of treatment targeted SEBs at other anatomical areas for the duration of the study except as prescribed by the Investigator. Moisturizers and emollients are allowable. Participants will be encouraged to use sunscreen with a sunscreen protection factor (SPF) 15 or higher at least once daily on all exposed skin sites.

5. Female participants must have a negative serum pregnancy test at Screening.

6. If the participant is a male with a female sexual partner who is of childbearing potential the couple is willing to use two effective methods of birth control during the duration of the trial and for one month after the last application of the gel. A female of childbearing potential is a sexually mature woman who: 1) has not undergone a hysterectomy or bilateral oophorectomy; or 2) has not been naturally postmenopausal for at least 24 consecutive months (that is, has had menses at any time in the preceding 24 consecutive months), must agree to use 2 effective methods of contraception for the duration of the study and at least 1 month after the last study drug application. The two forms of birth control authorized are defined as the use of a barrier method of contraception (condom with spermicide) in association with one of the following methods of birth control: bilateral tubal ligation; combined oral contraceptives (estrogens and progesterone) or implanted or injectable contraceptives with a stable dose for at least 1 month prior to Baseline; hormonal intra-uterine device (IUD) inserted at least 1 month prior to Baseline.

7. The participant is willing to contact the study center after each primary skin care physician (PSCP) visit to provide the study center details of the visit and any treatment of skin tumors.

8. The participant is willing to forego treatment of the treatment targeted baseline SEBs except when the Investigator and/or primary care giver believes that delay in treatment potentially might compromise the health of the participant.

Exclusion Criteria:

1. The participant is a woman of childbearing potential. This proscription is based on the key role of the HH pathway in embryogenesis, the known preclinical teratogenic effects of systemic cyclopamine, a naturally occurring inhibitor of SMO, and the unknown level of systemic exposure following topical application in humans. A female of childbearing potential is a sexually mature woman who: 1) has not undergone a hysterectomy or bilateral oophorectomy; or 2) has not been naturally postmenopausal for at least 24 consecutive months (that is, has had menses at any time in the preceding 24 consecutive months).

2. The participant has used topical products to the face or within 5 cm of a treatment targeted SEB or systemic therapies that might interfere with the evaluation of the study medication during the study. Specifically, these include the use of:

• Topical glucocorticoids 30 days prior to screening

• Retinoids (such as etretinate, isotretinoin, tazarotene, tretinoin, adapalene) systemically or topically or > 5% of an alphahydroxy acid (such as glycolic acid, lactic acid) or 5-fluorouracil or imiquimod (except as topical treatment to discrete BCCs) systemically or topically to the skin during the 6 months prior to entry.

• Systemic chemotherapy within one year prior to screening. (Note: field therapy with topically applied treatments can be done as long as they are not applied within 5 cm of a treatment targeted tumor).

• Known inhibitors of the HH signaling pathway (such as vismodegib, patidegib, and sonidegib) topically or systemically within 6 months of entry into the study.

1. The participant has a history of hypersensitivity to any of the ingredients in the study drug formulation.

2. The participant is unable or unwilling to make a good faith effort to return for all follow-up visits and tests.

3. The participant has uncontrolled systemic disease.

4. The participant has clinically important history of liver disease, including viral hepatitis, current alcohol abuse, or cirrhosis.

5. The participant has any condition or situation which in the Investigator's opinion may put the participant at significant risk, could confound the study results, or could interfere significantly with the participant's participation in the study. This includes history of other skin conditions or diseases, metabolic dysfunction, physical examination findings, or clinical laboratory findings giving reasonable suspicion of a disease or condition that contraindicates use of an investigational drug or that might affect interpretation of the results of the study or render the participant at high risk from treatment complications.

6. The participant has a history of invasive cancer within the past 5 years excluding non-melanoma skin cancer, Stage I cervical cancer, ductal carcinoma in situ of breast, or chronic lymphocytic lymphoma (Stage 0).

7. The participant has current, recent (within 4 weeks of Baseline visit), or planned participation in an experimental drug study while enrolled in this study.

8. Female sexual partner(s) of male participants who are unwilling or unable to comply with pregnancy prevention measures.

Contacts and Locations

Locations

	Site	City	State	Country	Postal Code
1	Royal London Hospital	London		United Kingdom
2	Manchester Royal Infirmary	Manchester		United Kingdom

Sponsors and Collaborators

• PellePharm, Inc.

Investigators

• Principal Investigator: John Lear, MD, Manchester Royal Infirmary

Study Documents (Full-Text)

• Statistical Analysis Plan - May 12, 2017
• Study Protocol - Aug 18, 2016

More Information

Publications

None provided.

• Responsible Party: PellePharm, Inc.
• ClinicalTrials.gov Identifier: NCT02762084
• Other Study ID Numbers: Pelle-926-201; 2015-004274-15
• First Posted: May 4, 2016
• Last Update Posted: Jul 23, 2020
• Last Verified: Jul 1, 2020

• Individual Participant Data (IPD) Sharing Statement: No
• Plan to Share IPD: No
• Keywords provided by PellePharm, Inc.: Gorlin Syndrome; Basal Cell; Nevus Syndrome; BCNS; nevoid basal cell carcinoma syndrome; Basal cell carcinoma; Hedgehog; Surgically Eligible Basal Cell Carcinomas
• Additional relevant MeSH terms: Carcinoma; Carcinoma, Basal Cell; Basal Cell Nevus Syndrome; Syndrome

Study Results

Participant Flow

Arm/Group Title	Patidegib Gel 2%	Patidegib Gel 4%	Vehicle Gel
Arm/Group Description	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks
Period Title: Overall Study
STARTED	6	6	5
Received at Least 1 Dose of Study Drug	6	6	5
By Tumor Per Protocol Population (PP)	6	6	4
COMPLETED	5	6	4
NOT COMPLETED	1	0	1

Baseline Characteristics

Arm/Group Title	Patidegib Gel 2%	Patidegib Gel 4%	Vehicle Gel	Total
Arm/Group Description	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks	Total of all reporting groups
Overall Participants	6	6	5	17
Age (years) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [years]	60.7 (12.14)	62.5 (13.87)	58.8 (17.58)	60.8 (13.63)
Sex: Female, Male (Count of Participants)
Female	5 83.3%	3 50%	3 60%	11 64.7%
Male	1 16.7%	3 50%	2 40%	6 35.3%
Ethnicity (NIH/OMB) (Count of Participants)
Hispanic or Latino	0 0%	0 0%	0 0%	0 0%
Not Hispanic or Latino	6 100%	6 100%	5 100%	17 100%
Unknown or Not Reported	0 0%	0 0%	0 0%	0 0%
Race (NIH/OMB) (Count of Participants)
American Indian or Alaska Native	0 0%	0 0%	0 0%	0 0%
Asian	0 0%	0 0%	0 0%	0 0%
Native Hawaiian or Other Pacific Islander	0 0%	0 0%	0 0%	0 0%
Black or African American	0 0%	0 0%	0 0%	0 0%
White	6 100%	6 100%	5 100%	17 100%
More than one race	0 0%	0 0%	0 0%	0 0%
Unknown or Not Reported	0 0%	0 0%	0 0%	0 0%
Region of Enrollment (participants) [Number]
United Kingdom	6 100%	6 100%	5 100%	17 100%
Weight (kilograms) [Mean (Standard Deviation) ]
Mean (Standard Deviation) [kilograms]	90.73 (20.539)	81.60 (11.872)	81.52 (21.477)	85.00 (17.95)

Outcome Measures

1. Primary Outcome

Title	Clinical Efficacy: Percent Change in Tumor Size of Treatment-targeted Surgically Eligible Basal Cell Carcinomas (SEBs) From Baseline
Description	SEBs were defined as clinically diagnosed basal cell carcinoma (BCC) 5 millimeters (mm) or greater in diameter on the face, excluding the nose and periorbital skin, and 9 mm or greater at sites other than the face. The percent change in greatest diameters of treatment-targeted surgically eligible basal cell carcinomas (SEBs) from Baseline to Week 26 was calculated as follows: (sum [Baseline] - sum [Week 26] / sum [Baseline] * 100), where sum = the greatest diameters of Baseline treatment-targeted SEBs and positive numbers represent decrease in tumor size and negative numbers to represent increase in tumor size. Missing values were imputed using Last-Observation Carried Forward (LOCF).
Time Frame	Baseline, Week 26

Outcome Measure Data

Analysis Population Description

By tumor per protocol population includes all treatment-targeted tumors except tumors that were biopsied and excludes tumors that did not meet protocol criteria.

Arm/Group Title	Patidegib Gel 2%	Patidegib Gel 4%	Vehicle Gel
Arm/Group Description	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks
Measure Participants	6	6	4
Measure Number of tumors	21	24	16
Mean (Standard Deviation) [percentage change]	51.29 (41.780)	26.63 (41.270)	21.82 (25.213)

Statistical Analysis 1

Statistical Analysis Overview	Comparison Group Selection	Patidegib Gel 2%, Vehicle Gel
	Comments	at Week 26
	Type of Statistical Test	Other
	Comments	Pairwise comparison
Statistical Test of Hypothesis	p-Value	0.030
	Comments
	Method	ANCOVA
	Comments	ANCOVA with treatment group as a factor and Baseline value as a covariate

Statistical Analysis 2

Statistical Analysis Overview	Comparison Group Selection	Patidegib Gel 4%, Vehicle Gel
	Comments	at Week 26
	Type of Statistical Test	Other
	Comments	Pairwise comparison
Statistical Test of Hypothesis	p-Value	0.756
	Comments
	Method	ANCOVA
	Comments	ANCOVA with treatment group as a factor and Baseline value as a covariate

2. Primary Outcome

Title	Molecular Efficacy: Percent Change in the Hedgehog (HH) Signaling Pathway Target Gene Glioma-associated Oncogene Homolog 1 (GLI1) Messenger Ribonucleic Acid (mRNA) Levels From Baseline
Description	SEBs were defined as clinically diagnosed BCC 5 mm or greater in diameter on the face, excluding the nose and periorbital skin, and 9-mm or greater at sites other than the face. A single baseline SEB designated as a treatment targeted tumor at Baseline was biopsied first at Baseline and again following 6 weeks of treatment. This was used to assess percent change in GLI1 mRNA levels as follows: (Baseline - Week 6) / Baseline * 100, where positive numbers to represent decrease in GL1 mRNA level and negative numbers to represent increase in GL1 mRNA level. Any missing values were not imputed; all available data is summarized.
Time Frame	Baseline, Week 6

Outcome Measure Data

Analysis Population Description

Participants who received at least 1 dose of study drug who had evaluable GLI1 mRNA data at Baseline and Week 6.

Arm/Group Title	Patidegib Gel 2%	Patidegib Gel 4%	Vehicle Gel
Arm/Group Description	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks
Measure Participants	4	4	4
Mean (Standard Deviation) [percentage change]	53.83 (27.197)	20.69 (34.730)	28.53 (43.096)

Statistical Analysis 1

Statistical Analysis Overview	Comparison Group Selection	Patidegib Gel 2%, Vehicle Gel
	Comments	at Week 6
	Type of Statistical Test	Other
	Comments	Pairwise comparison
Statistical Test of Hypothesis	p-Value	0.500
	Comments
	Method	ANCOVA
	Comments	ANCOVA with treatment group as a factor and using Baseline value as a covariate

Statistical Analysis 2

Statistical Analysis Overview	Comparison Group Selection	Patidegib Gel 4%, Vehicle Gel
	Comments	at Week 6
	Type of Statistical Test	Other
	Comments	Pairwise comparison
Statistical Test of Hypothesis	p-Value	0.681
	Comments
	Method	ANCOVA
	Comments	ANCOVA with treatment group as a factor and using Baseline value as a covariate

3. Primary Outcome

Title	Safety and Tolerability Assessment of Treatment With Patidegib Gel: Number of Participants With a Treatment-emergent Adverse Event Causally Related to Study Drug
Description	All serious adverse events (SAEs) and all other non-serious adverse events (AEs) regardless of causality are located in the Reported AE Module. AEs considered as related where categorized by the Investigator as either definitely related, probably related, or possibly related. Treatment-emergent AEs are those with an onset after use of study drug.
Time Frame	Baseline through Week 26

Outcome Measure Data

Analysis Population Description

All enrolled participants who were randomized, received at least 1 confirmed dose of study drug, and had at least 1 post-baseline safety assessment.

Arm/Group Title	Patidegib Gel 2%	Patidegib Gel 4%	Vehicle Gel
Arm/Group Description	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks
Measure Participants	6	6	5
Count of Participants [Participants]	2 33.3%	5 83.3%	2 40%

4. Primary Outcome

Title	Safety and Tolerability Assessment of Treatment With Patidegib Gel: Number of Participants With Treatment-emergent Administrative Site Skin Condition AEs Causally Related to Study Drug
Description	All SAEs and all other non-serious AEs, regardless of causality, are located in the Reported AE Module. The number of participants reporting administrative-site, skin condition treatment-emergent AEs considered related to study drug by the Investigator are presented below. Treatment-emergent AEs are those with an onset after use of study drug.
Time Frame	Baseline through Week 26

Outcome Measure Data

Analysis Population Description

All enrolled participants who were randomized, received at least 1 confirmed dose of study drug, and had at least 1 post-baseline safety assessment.

Arm/Group Title	Patidegib Gel 2%	Patidegib Gel 4%	Vehicle Gel
Arm/Group Description	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks
Measure Participants	6	6	5
Application site alopecia	0 0%	1 16.7%	0 0%
Application site dermatitis	0 0%	1 16.7%	0 0%
Application site pain	0 0%	1 16.7%	0 0%
Application site rash	0 0%	1 16.7%	0 0%
Application site reaction	0 0%	0 0%	1 20%

5. Secondary Outcome

Title	The Number of Participants Reporting New SEBs on the Face From Baseline for the Combined Patidegib Treatment Groups
Description	Facial SEBs were defined as clinically diagnosed BCC 5 mm or greater in diameter on the face, excluding the nose and periorbital skin. A new facial SEB was defined as an SEB first noted on the face after Week 2 that developed at a site where there was no visible BCC of any size at Baseline or Week 2. New facial SEBs were investigated for participants on vehicle gel versus participants on patidegib 2% and 4% gel. Missing values were imputed using LOCF.
Time Frame	Baseline, Week 26

Outcome Measure Data

Analysis Population Description

Participants who received at least 1 dose of study drug.

Arm/Group Title	Patidegib Gel	Vehicle Gel
Arm/Group Description	Patidegib: 2% or 4% gel applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks
Measure Participants	12	5
Number [participants]	2 33.3%	3 50%

6. Secondary Outcome

Title	The Mean Number of New SEBs on the Face for the Combined Patidegib Treatment Groups
Description	Facial SEBs were defined as clinically diagnosed BCC 5 mm or greater in diameter on the face, excluding the nose and periorbital skin. A new facial SEB was defined as an SEB first noted on the face after Week 2 that developed at a site where there was no visible BCC of any size at Baseline or Week 2. New facial SEBs were investigated for participants on vehicle gel versus participants on patidegib 2% and 4% gel. Missing values were imputed using LOCF. The mean number of new SEBs (number per participant) are presented. No measure of dispersion/precision was calculated.
Time Frame	Baseline, Week 26

Outcome Measure Data

Analysis Population Description

Participants who received at least 1 dose of study drug.

Arm/Group Title	Patidegib Gel	Vehicle Gel
Arm/Group Description	Patidegib: 2% or 4% gel applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks
Measure Participants	12	5
Number [new SEBs]	0.4	1.4

Statistical Analysis 1

Statistical Analysis Overview	Comparison Group Selection	Patidegib Gel 2%, Patidegib Gel 4%
	Comments	at Week 26
	Type of Statistical Test	Other
	Comments	One-sided comparison
Statistical Test of Hypothesis	p-Value	0.048
	Comments
	Method	Mann Whitey U
	Comments

Statistical Analysis 2

Statistical Analysis Overview	Comparison Group Selection	Patidegib Gel 2%, Patidegib Gel 4%
	Comments	at Week 26
	Type of Statistical Test	Other
	Comments	Two-sided comparison
Statistical Test of Hypothesis	p-Value	0.096
	Comments
	Method	Mann Whitey U
	Comments

7. Secondary Outcome

Title	The Mean Number of New SEBs on the Face for the Combined Patidegib Treatment Groups by Tumor Population
Description	Facial SEBs were defined as clinically diagnosed BCC 5 mm or greater in diameter on the face, excluding the nose and periorbital skin. A new facial SEB was defined as an SEB first noted on the face after Week 2 that developed at a site where there was no visible BCC of any size at Baseline or Week 2. New facial SEBs were investigated for participants on vehicle gel versus participants on patidegib 2% and 4% gel. Missing values were imputed using LOCF. The mean number of new SEBs (number per participant) are presented. No measure of dispersion/precision was calculated.
Time Frame	Baseline, Week 26

Outcome Measure Data

Analysis Population Description

By tumor per protocol population includes all treatment-targeted tumors except tumors that were biopsied and excludes tumors that did not meet protocol criteria.

Arm/Group Title	Patidegib Gel	Vehicle Gel
Arm/Group Description	Patidegib: 2% or 4% gel applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks
Measure Participants	12	5
Number [new SEBs]	0.3	1.4

Statistical Analysis 1

Statistical Analysis Overview	Comparison Group Selection	Patidegib Gel 2%, Patidegib Gel 4%
	Comments	at Week 26
	Type of Statistical Test	Other
	Comments	Two-sided comparison
Statistical Test of Hypothesis	p-Value	0.008
	Comments
	Method	Mann Whitey U
	Comments

8. Secondary Outcome

Title	Percent Change in Baseline Treatment-targeted SEBs Tumor Size From Baseline
Description	SEBs were defined as clinically diagnosed BCC 5 mm or greater in diameter on the face, excluding the nose and periorbital skin, and 9 mm or greater at sites other than the face. The percent change in greatest diameters of Baseline treatment-targeted SEBs from Baseline to Week x (Week 6, 10, 14, 18, or 22) was calculated as follows: (sum [Baseline] - sum [Week x] / sum [Baseline] * 100), where sum = the greatest diameters of Baseline treatment-targeted SEBs, and positive numbers to represent decrease in tumor size and negative numbers to represent increase in tumor size. Missing values were imputed using LOCF.
Time Frame	Baseline and Weeks 6, 10, 14, 18, and 22

Outcome Measure Data

Analysis Population Description

Participants who received at least 1 dose of study drug.

Arm/Group Title	Patidegib Gel 2%	Patidegib Gel 4%	Vehicle Gel
Arm/Group Description	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks
Measure Participants	6	6	5
Week 6	16.0 (37.07)	6.1 (10.41)	8.2 (4.55)
Week 10	30.8 (39.54)	10.7 (12.00)	10.5 (5.35)
Week 14	36.1 (46.45)	14.1 (13.18)	10.7 (6.26)
Week 18	26.0 (73.79)	18.4 (26.86)	19.6 (21.98)
Week 22	32.1 (78.71)	23.2 (22.87)	23.2 (28.03)

9. Secondary Outcome

Title	Percent Change in Central Facial SEBs From Baseline
Description	Central facial SEBs were defined as those located on the nose or periorbital area (eyelids) which were 3 mm or greater at Baseline. The percent change from Baseline to Week x (Week x = Weeks 6, 10, 14, 18, 22, or 26) in central facial SEBs was calculated as follows: [sum (Baseline) - sum (Week x)] / [sum (Baseline)] * 100 where sum = the greatest diameters of Baseline treatment-targeted SEBs where positive numbers to represent decrease in tumor size and negative numbers to represent increase in tumor size. Missing values were imputed using LOCF.
Time Frame	Baseline and Weeks 6, 10, 14, 18, 22, and 26

Outcome Measure Data

Analysis Population Description

Participants who received at least 1 dose of study drug and who had a central facial SEB at Baseline.

Arm/Group Title	Patidegib Gel 2%	Patidegib Gel 4%	Vehicle Gel
Arm/Group Description	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks
Measure Participants	1	2	2
Week 6	5.9 (NA)	-20.0 (28.28)	8.0 (24.11)
Week 10	5.9 (NA)	-10.0 (42.43)	12.5 (17.68)
Week 14	5.9 (NA)	-60.0 (84.85)	29.5 (28.93)
Week 18	5.9 (NA)	-70.0 (70.71)	17.0 (11.25)
Week 22	5.9 (NA)	-45.0 (63.64)	29.5 (28.93)
Week 26	5.9 (NA)	-65.0 (63.64)	20.5 (41.78)

10. Secondary Outcome

Title	Proportion of Non-central Facial BCCs Increasing to ≥ 5 mm From Baseline
Description	The proportion of non-central facial BCCs that at Baseline measured a greatest diameter of < 5 mm and increased to a diameter of ≥ 5 mm by Week x (Week x = Weeks 6, 10, 14, 18, 22, or 26) were calculated for each participant as follows: (Number of non-central facial BCCs with greatest diameter ≥ 5 mm at Week x) / (Number of non-central facial BCCs with greatest diameter < 5 mm at Baseline). Missing values were imputed using LOCF.
Time Frame	Baseline and Weeks 6, 10, 14, 18, 22, and 26

Outcome Measure Data

Analysis Population Description

Participants who received at least 1 dose of study drug with non-central facial BCCs < 5 mm at Baseline.

Arm/Group Title	Patidegib Gel 2%	Patidegib Gel 4%	Vehicle Gel
Arm/Group Description	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks
Measure Participants	3	2	3
Week 6	0.17 (0.289)	0 (0)	0.17 (0.289)
Week 10	0 (0)	0.67 (0.474)	0.17 (0.289)
Week 14	0 (0)	0 (0)	0 (0)
Week 18	0 (0)	0.17 (0.233)	0 (0)
Week 22	0 (0)	0.34 (0.474)	0 (0)
Week 26	0 (0)	0 (0)	0.11 (0.191)

11. Secondary Outcome

Title	Proportion of Treatment-Targeted SEBs No Longer Classified as SEBs After 26 Weeks
Description	SEBs were defined as clinically diagnosed BCC 5 mm or greater in diameter on the face, excluding the nose and periorbital skin, and 9 mm or greater at sites other than the face. The proportion of Baseline treatment-targeted SEBs that at the end of 26 weeks of treatment were no longer large enough to be classified as SEBs (that is, the proportion of Baseline treatment targeted SEBs on the face that became < 5 mm in greatest diameter and non-facial Baseline treatment targeted SEBs that became < 9 mm in greatest diameter) were calculated for each participant as follows: (Number of Baseline treatment-targeted facial SEBs with greatest diameter < 5 mm) + (Baseline treatment targeted non-facial SEBs with greatest diameter < 9 mm) / Number of baseline treatment targeted SEBs. Missing values were imputed using LOCF.
Time Frame	Baseline and Weeks 6, 10, 14, 18, 22, and 26

Outcome Measure Data

Analysis Population Description

Participants who received at least 1 dose of study drug.

Arm/Group Title	Patidegib Gel 2%	Patidegib Gel 4%	Vehicle Gel
Arm/Group Description	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks
Measure Participants	6	6	5
Week 6	0.37 (0.497)	0.13 (0.242)	0.12 (0.179)
Week 10	0.40 (0.473)	0.13 (0.103)	0.16 (0.219)
Week 14	0.53 (0.468)	0.23 (0.234)	0.16 (0.219)
Week 18	0.57 (0.497)	0.23 (0.320)	0.28 (0.303)
Week 22	0.53 (0.516)	0.30 (0.276)	0.32 (0.363)
Week 26	0.53 (0.516)	0.30 (0.303)	0.36 (0.434)

12. Other Pre-specified Outcome

Title	Percentage of Treatment-targeted SEBs Achieving Clear or Almost Clear on the 5-point Investigator Static Global Tumor Assessment (ISGTA) Scale
Description	The ISGTA is a scale with scores ranging from 0 (clear), 1 (almost clear), 2 (minimal residual tumor), to 3 (clearly visible tumor). The Investigator assessed each Baseline treatment-targeted SEB at Weeks 6, 10, 14, 18, 22, and 26. SEBs were defined as clinically diagnosed BCC 5 mm or greater in diameter on the face, excluding the nose and periorbital skin, and 9 mm or greater at sites other than the face. The percentage of Baseline treatment-targeted SEBs evaluated as being clear or almost clear at Week x (Week x = Week 6, 10, 14, 18, 22 or 26) based on the ISGTA scale was calculated as follows: (Number of baseline treatment-targeted SEBs with ISGTA score of 0 or 1 at Week x) / (Number of Baseline treatment-targeted SEBs) * 100. Missing data were imputed using LOCF. The percentage of responders achieving clear (0) or almost clear (1) on the ISGTA scale are presented by Week.
Time Frame	Baseline and Weeks 6, 10, 14, 18, 22, and 26

Outcome Measure Data

Analysis Population Description

Participants who received at least 1 dose of study drug.

Arm/Group Title	Patidegib Gel 2%	Patidegib Gel 4%	Vehicle Gel
Arm/Group Description	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks	Applied topically twice daily for 26 weeks
Measure Participants	6	6	5
Week 6	23.3	3.3	12.0
Week 10	23.3	13.3	8.0
Week 14	33.3	13.3	8.0
Week 18	33.3	23.3	20.0
Week 22	36.7	26.7	20.0
Week 26	33.3	30.0	24.0

Adverse Events

Time Frame	26 Weeks
Arm/Group Title	Patidegib Gel 2%		Patidegib Gel 4%		Vehicle Gel
Arm/Group Description	Applied topically twice daily for 26 weeks		Applied topically twice daily for 26 weeks		Applied topically twice daily for 26 weeks
All Cause Mortality
	Patidegib Gel 2%		Patidegib Gel 4%		Vehicle Gel
	Affected / at Risk (%)	# Events	Affected / at Risk (%)	# Events	Affected / at Risk (%)	# Events
Total	0/6 (0%)		0/6 (0%)		0/5 (0%)
Serious Adverse Events
	Patidegib Gel 2%		Patidegib Gel 4%		Vehicle Gel
	Affected / at Risk (%)	# Events	Affected / at Risk (%)	# Events	Affected / at Risk (%)	# Events
Total	0/6 (0%)		0/6 (0%)		2/5 (40%)
Infections and infestations
Pneumonia pneumococcal	0/6 (0%)	0	0/6 (0%)	0	1/5 (20%)	1
Pneumonia	0/6 (0%)	0	0/6 (0%)	0	1/5 (20%)	1
Other (Not Including Serious) Adverse Events
	Patidegib Gel 2%		Patidegib Gel 4%		Vehicle Gel
	Affected / at Risk (%)	# Events	Affected / at Risk (%)	# Events	Affected / at Risk (%)	# Events
Total	4/6 (66.7%)		6/6 (100%)		3/5 (60%)
Endocrine disorders
Hyperthyroidism	1/6 (16.7%)		0/6 (0%)		0/5 (0%)
Hypothyroidism	0/6 (0%)		0/6 (0%)		1/5 (20%)
Eye disorders
Episcleritis	0/6 (0%)		1/6 (16.7%)		0/5 (0%)
Gastrointestinal disorders
Constipation	0/6 (0%)		0/6 (0%)		1/5 (20%)
Diarrhoea	1/6 (16.7%)		2/6 (33.3%)		0/5 (0%)
Food Poisoning	1/6 (16.7%)		0/6 (0%)		0/5 (0%)
Nausea	0/6 (0%)		1/6 (16.7%)		1/5 (20%)
General disorders
Application site alopecia	0/6 (0%)		1/6 (16.7%)		0/5 (0%)
Application site dermatitis	0/6 (0%)		1/6 (16.7%)		0/5 (0%)
Application site pain	0/6 (0%)		1/6 (16.7%)		0/5 (0%)
Application site rash	0/6 (0%)		1/6 (16.7%)		0/5 (0%)
Application site reaction	0/6 (0%)		0/6 (0%)		1/5 (20%)
Fatigue	2/6 (33.3%)		3/6 (50%)		2/5 (40%)
Infections and infestations
Candida infection	1/6 (16.7%)		0/6 (0%)		0/5 (0%)
Cellulitis	1/6 (16.7%)		0/6 (0%)		0/5 (0%)
Nasopharyngitis	0/6 (0%)		1/6 (16.7%)		0/5 (0%)
Oral herpes	1/6 (16.7%)		0/6 (0%)		0/5 (0%)
Viral upper respiratory tract infection	1/6 (16.7%)		1/6 (16.7%)		0/5 (0%)
Metabolism and nutrition disorders
Diabetes mellitus	0/6 (0%)		0/6 (0%)		1/5 (20%)
Hypercholesterolaemina	0/6 (0%)		0/6 (0%)		1/5 (20%)
Musculoskeletal and connective tissue disorders
Arthritis	1/6 (16.7%)		0/6 (0%)		0/5 (0%)
Muscle spasm	1/6 (16.7%)		1/6 (16.7%)		2/5 (40%)
Nervous system disorders
Ageusia	1/6 (16.7%)		0/6 (0%)		0/5 (0%)
Dysgeusia	0/6 (0%)		1/6 (16.7%)		1/5 (20%)
Trigeminal neuralgia	1/6 (16.7%)		0/6 (0%)		0/5 (0%)
Psychiatric disorders
Depressed mood	0/6 (0%)		1/6 (16.7%)		0/5 (0%)
Renal and urinary disorders
Acute kidney injury	0/6 (0%)		0/6 (0%)		1/5 (20%)
Nephrolithiasis	0/6 (0%)		1/6 (16.7%)		0/5 (0%)
Respiratory, thoracic and mediastinal disorders
Cough	1/6 (16.7%)		0/6 (0%)		1/5 (20%)
Dysphonia	1/6 (16.7%)		0/6 (0%)		0/5 (0%)
Skin and subcutaneous tissue disorders
Alopecia	0/6 (0%)		0/6 (0%)		1/5 (20%)
Hair growth abnormal	1/6 (16.7%)		0/6 (0%)		0/5 (0%)
Pruritus	0/6 (0%)		0/6 (0%)		1/5 (20%)
Rash	0/6 (0%)		1/6 (16.7%)		0/5 (0%)
Vascular disorders
Hypertension	0/6 (0%)		0/6 (0%)		1/5 (20%)

Limitations/Caveats

[Not Specified]

More Information

Certain Agreements

Principal Investigators are NOT employed by the organization sponsoring the study.

There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.