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A Multicenter Study to Evaluate the Efficacy and Safety of PEP005 (Ingenol Mebutate) Gel When Used to Treat Actinic Keratoses (AKs) on the Non Head Locations

A Multi-center, Randomized, Parallel Group, Double-blind, Vehicle-controlled Study to Evaluate the Efficacy and Safety of PEP005 (Ingenol Mebutate) Gel, 0.05% In Patients With Actinic Keratoses ON Non-head Locations (REGION-I)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00742391
Enrollment
255
Registered
2008-08-27
Start date
2008-09-30
Completion date
2009-02-28
Last updated
2015-03-06

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

Conditions

Actinic Keratoses

Keywords

Peplin, Actinic keratosis, PEP005

Brief summary

The purpose of this study is to determine whether topical application of PEP005 is effective for the treatment of actinic keratoses.

Interventions

two day treatment

DRUGVehicle gel

two day treatment

Sponsors

Peplin
Lead SponsorINDUSTRY

Study design

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

Eligibility

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

Inclusion criteria

* Must be male or female and at least 18 years of age. * Female patients must be of: * Non-childbearing potential; * Childbearing potential, provided negative serum and urine pregnancy test and using effective contraception. * 4 to 8 AK lesions on non-head locations.

Exclusion criteria

* Cosmetic or therapeutic procedures within 2 weeks and within 2 cm of the selected treatment area. * Treatment with immunomodulators, or interferon/ interferon inducers or systemic medications that suppress the immune system within 4 weeks. * Treatment with 5-FU, imiquimod, diclofenac, or photodynamic therapy within 8 weeks and 2 cm of treatment area

Design outcomes

Primary

MeasureTime frameDescription
Patients With Complete Clearance of Actinic Keratosis (AKs)57 daysComplete clearance rate of actinic keratosis (AK) lesions defined as the proportion of patients with no clinically visible AK lesions in the selected treatment area.

Secondary

MeasureTime frameDescription
Patients With Partial Clearance of Actinic Keratosis (AKs)baseline and 57 daysPartial clearance rate of AK lesions defined as the proportion of patients with a 75% or greater reduction in the number of actinic keratosis (AK) lesions identified at baseline in the selected treatment area.

Countries

Australia, United States

Participant flow

Recruitment details

The study period was 05 September 2008 (first patient randomized) to 23 February 2009 (last patient completed Day 57)

Participants by arm

ArmCount
PEP005 (Ingenol Mebutate) Gel
PEP005 (ingenol mebutate) Gel 0.05% once daily for 2 consecutive days
126
Vehicle Gel
Vehicle gel once daily for 2 consecutive days
129
Total255

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event21
Overall StudyLost to Follow-up10
Overall StudyProtocol Violation10

Baseline characteristics

CharacteristicPEP005 (Ingenol Mebutate) GelVehicle GelTotal
Age, Continuous67.3 years
STANDARD_DEVIATION 10.59
66.9 years
STANDARD_DEVIATION 9.89
67.1 years
STANDARD_DEVIATION 10.22
Region of Enrollment
Australia
16 participants13 participants29 participants
Region of Enrollment
United States
110 participants116 participants226 participants
Sex: Female, Male
Female
40 Participants56 Participants96 Participants
Sex: Female, Male
Male
86 Participants73 Participants159 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
0 / 1250 / 129
serious
Total, serious adverse events
1 / 1253 / 129

Outcome results

Primary

Patients With Complete Clearance of Actinic Keratosis (AKs)

Complete clearance rate of actinic keratosis (AK) lesions defined as the proportion of patients with no clinically visible AK lesions in the selected treatment area.

Time frame: 57 days

Population: Intention to treat population

ArmMeasureValue (NUMBER)
PEP005 (Ingenol Mebutate) GelPatients With Complete Clearance of Actinic Keratosis (AKs)35 Participants
Vehicle GelPatients With Complete Clearance of Actinic Keratosis (AKs)6 Participants
p-value: <0.0001Cochran-Mantel-Haenszel
Secondary

Patients With Partial Clearance of Actinic Keratosis (AKs)

Partial clearance rate of AK lesions defined as the proportion of patients with a 75% or greater reduction in the number of actinic keratosis (AK) lesions identified at baseline in the selected treatment area.

Time frame: baseline and 57 days

Population: Intention to treat population

ArmMeasureValue (NUMBER)
PEP005 (Ingenol Mebutate) GelPatients With Partial Clearance of Actinic Keratosis (AKs)56 participants
Vehicle GelPatients With Partial Clearance of Actinic Keratosis (AKs)6 participants
p-value: 0.0001Cochran-Mantel-Haenszel

Source: ClinicalTrials.gov · Data processed: Mar 26, 2026