Skip to content

An Open-Label Safety Study of API 31510 in a Topical Cream for in Situ Cutaneous Squamous Cell Carcinoma (SCCIS)

Status
Completed
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00652080
Enrollment
35
Registered
2008-04-03
Start date
2008-06-30
Completion date
2010-01-31
Last updated
2019-03-05

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

Conditions

Squamous Cell Carcinoma

Brief summary

The purpose of this study is to determine the safety and tolerability of pharmaceutical compound 31510 in a topical cream when applied to in situ cutaneous squamous cell carcinoma and to obtain preliminary efficacy data for the treatment of in situ cutaneous squamous cell carcinoma by Compound 31510 topical cream.

Interventions

DRUGAPI 31510

Topical Cream; 3% active; AM & PM application

Sponsors

BPGbio
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Male or female adults \> 18 years of age * Primary, histologically confirmed SCCIS with a minimum area of 0.5 cm2 and with a maximum diameter of 2.0 cm target SCCIS lesion suitable for excision * Histological diagnosis made no more than 4 weeks prior to the screening visit * Histological biopsy removed 25% or less of the target lesion * No other dermatological disease in the SCCIS target site or surrounding area * Willing to refrain from using non-approved lotions or creams on the target site and surrounding area during the treatment period. Willing to refrain from washing the treated area for at least 8 hours following the application of study medication * Willing to refrain from exposure to direct sunlight or ultraviolet light and to avoid the use of tanning parlors for the duration of the study * Laboratory values for the tests listed in the Study Schedule on page 2 within the reference ranges as defined by the central laboratory, or out of range test results that are clinically acceptable to the investigator. * Ability to follow study instructions and likely to complete all study requirements * Written informed consent obtained, including consent for tissue to be examined and stored by the central dermatopathologist. * Written consent to allow photographs of the target SCCIS lesion to be used as part of the study data * For females of childbearing potential, a negative pregnancy test at screening and using an acceptable form of birth control (oral/implant/injectable/transdermal contraceptives, intrauterine device, condom, diaphragm, abstinence, or a monogamous relationship with a partner who has had a vasectomy)

Exclusion criteria

* Pregnant or lactating * Presence of known or suspected systemic cancer * Histological evidence of nBCC, sBCC, or any other tumor in the biopsy specimen * Histological evidence of severe squamous metaplasia, infiltrative, desmoplastic or micronodular growth patterns in the biopsy specimen * History of recurrence of the target SCCIS lesion * Evidence of dermatological disease or confounding skin condition in the treatment area, e.g., BCC, actinic keratosis, rosacea, psoriasis, atopic dermatitis, eczema, xeroderma pigmentosa * Concurrent disease or treatment that suppresses the immune system * Chronic medical condition that in the judgment of the investigator(s) would interfere with the performance of the study or would place the patient at undue risk * Known sensitivity to any of the ingredients in the study medication * Use of a tanning parlor or other excessive or prolonged exposure to ultraviolet light or direct sunlight during the course of the study * Treatment with systemic chemotherapeutic agents within the 6 months prior to the screening visit * Use of systemic retinoids within the 6 months prior to the screening period * Treatment with systemic immunomodulators or immunosuppressants within the 6 months prior to the screening period * Use of topical immunomodulators within 2 cm of the target SCCIS lesion within the 4 weeks prior to the screening period * Treatment with the following topical agents within the 4 weeks prior to the screening visit; levulinic acid, 5-fluorouracil, corticosteroids, retinoids, diclofenac, hyaluronic acid, imiquimod * Undergone a facial resurfacing procedure, i.e., chemical peel, laser resurfacing, dermabrasion, within the 6 months prior to the screening visit, if the target SCCIS lesion is on the face * Treatment with liquid nitrogen, surgical excision or curettage within 2cm of the target SCCIS lesion during the 4 weeks prior to the screening visit * Elective surgery within 4 weeks prior to the screening visit, during the study, or 4 weeks after the treatment period * Evidence of current chronic alcohol or drug abuse * Current enrollment in an investigational drug or device or participation in such a study within 4 weeks of the screening visit * In the investigator's opinion, evidence of unwillingness, or inability to follow the restrictions of the protocol and complete the study

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Adverse Events6 weeksTo determine the safety and tolerability of API 31510 cream 3%, topically applied to in situ cutaneous squamous cell carcinomas (SCCIS).

Secondary

MeasureTime frameDescription
Percentage of Participants With a Complete Response6 weeksTo obtain a preliminary determination of the efficacy of API 31510 cream 3%,topically applied to in situ cutaneous squamous cell carcinomas. The subject was considered to have had a complete response only if the histological examination of the target lesion was negative.

Countries

United States

Participant flow

Pre-assignment details

Subjects were required to have at least one histologically-confirmed SCCIS lesion that was suitable for excision, ie, to have a lesion with a minimum area of 0.5 cm2 and a maximum diameter of 2.0 cm.

Participants by arm

ArmCount
API 31510 Topical Cream
Active Cream 3%; AM & PM API 31510: Topical Cream; 3% active; AM & PM application
35
Total35

Baseline characteristics

CharacteristicAPI 31510 Topical Cream
Age, Continuous67.6 years
STANDARD_DEVIATION 10.3
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
34 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
35 Participants
Sex: Female, Male
Female
24 Participants
Sex: Female, Male
Male
11 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
22 / 35
serious
Total, serious adverse events
1 / 35

Outcome results

Primary

Number of Participants With Adverse Events

To determine the safety and tolerability of API 31510 cream 3%, topically applied to in situ cutaneous squamous cell carcinomas (SCCIS).

Time frame: 6 weeks

Population: Safety Population: All subjects who took at least one dose of the investigational product.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Safety PopulationNumber of Participants With Adverse EventsSubjects without an AE20 Participants
Safety PopulationNumber of Participants With Adverse EventsSubjects with an AE (Mild)10 Participants
Safety PopulationNumber of Participants With Adverse EventsSubjects with an AE (Moderate)4 Participants
Safety PopulationNumber of Participants With Adverse EventsSubjects with an AE (Severe)1 Participants
Secondary

Percentage of Participants With a Complete Response

To obtain a preliminary determination of the efficacy of API 31510 cream 3%,topically applied to in situ cutaneous squamous cell carcinomas. The subject was considered to have had a complete response only if the histological examination of the target lesion was negative.

Time frame: 6 weeks

Population: Intent-to-Treat (ITT) Population: All subjects who were dispensed the study drug were included in this population.~Per Protocol (PP) Population: All subjects who had SCCIS confirmed via histological results at baseline, had a Week 6 histological examination, and did not miss any interim visits.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Safety PopulationPercentage of Participants With a Complete Response8 Participants
PP PopulationPercentage of Participants With a Complete Response5 Participants

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