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A Multi-center Study to Evaluate the Efficacy and Safety of PEP005 (Ingenol Mebutate) Gel, When Used to Treat Actinic Keratoses on the Head (Face or Scalp)

A Multi-center, Randomized, Parallel Group, Double-blind, Vehicle-controlled Study to Evaluate the Efficacy and Safety of PEP005 (Ingenol Mebutate) Gel, 0.015% In Patients With Actinic Keratoses ON the Head (Face or Scalp) (REGION-IIa)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00916006
Enrollment
269
Registered
2009-06-08
Start date
2009-06-30
Completion date
2009-09-30
Last updated
2015-04-02

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

Conditions

Actinic Keratosis

Keywords

Peplin, Actinic keratosis, PEP005

Brief summary

This Phase III study is designed to assess the efficacy and safety of PEP005 Gel, 0.015% when applied to an area of skin containing 4-8 AK lesions on the face or scalp.

Interventions

0.015%, three day treatment

DRUGVehicle gel

Vehicle gel, three 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

* Patient is male or female and at least 18 years of age * Female patients must be of either: * Non-childbearing potential, post-menopausal * Childbearing potential, provided there are negative serum and urine pregnancy test results prior to study treatment, to rule out pregnancy

Exclusion criteria

* Cosmetic or therapeutic procedures within 2 weeks and 2cm 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 the selected treatment area

Design outcomes

Primary

MeasureTime frameDescription
Patients With Complete Clearance of Actinic Keratosis (AK) Lesions.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 (AK)baseline and 57 daysPatients with partial clearance defined as ≥ 75% reduction in the number of actinic keratosis (AK) lesions identified at baseline in the treatment area

Countries

Australia, United States

Participant flow

Recruitment details

Study PEP005-016 was conducted at 21 study centers in the United States and Australia. A total of 269 patients were randomized. Patient screening was started on 01 June 2009. The first patient was randomized on 05 June 2009 and the last patient completed the Day 57 visit on 10 September 2009

Participants by arm

ArmCount
PEP005 (Ingenol Mebutate) Gel, 0.015%
PEP005 (ingenol mebutate) Gel 0.05% once daily for 3 consecutive days
135
Vehicle
Vehicle gel once daily for 3 consecutive days
134
Total269

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event11
Overall StudyProtocol Violation01
Overall StudyWithdrawal by Subject25

Baseline characteristics

CharacteristicPEP005 (Ingenol Mebutate) Gel, 0.015%VehicleTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
64 Participants57 Participants121 Participants
Age, Categorical
Between 18 and 65 years
71 Participants77 Participants148 Participants
Region of Enrollment
Australia
10 participants8 participants18 participants
Region of Enrollment
United States
125 participants126 participants251 participants
Sex: Female, Male
Female
19 Participants14 Participants33 Participants
Sex: Female, Male
Male
116 Participants120 Participants236 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
39 / 1323 / 135
serious
Total, serious adverse events
2 / 1322 / 135

Outcome results

Primary

Patients With Complete Clearance of Actinic Keratosis (AK) Lesions.

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 (AK) Lesions.50 participants
Vehicle GelPatients With Complete Clearance of Actinic Keratosis (AK) Lesions.3 participants
p-value: 0.001Cochran-Mantel-Haenszel
Secondary

Patients With Partial Clearance of Actinic Keratosis (AK)

Patients with partial clearance defined as ≥ 75% reduction in the number of actinic keratosis (AK) lesions identified at baseline in the 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 (AK)81 participants
Vehicle GelPatients With Partial Clearance of Actinic Keratosis (AK)9 participants
p-value: 0.001Cochran-Mantel-Haenszel

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