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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-IIb)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00915551
Enrollment
278
Registered
2009-06-08
Start date
2009-06-30
Completion date
2009-09-30
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 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

DRUGPEP005 (Ingenol Mebutate) gel, 0.015%

once daily for 3 consecutive days

DRUGVehicle Gel

once daily for 3 consecutive days

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
Complete Clearance of Actinic Keratoses (AK) Lesionsbaseline and 57 daysComplete clearance of the treatment field

Secondary

MeasureTime frameDescription
Partial Clearance of Actinic Keratoses (AK)baseline and 57 daysPartial clearance defined as ≥ 75% reduction in the number of AK lesions identified at baseline in the treatment area

Countries

Australia, United States

Participant flow

Recruitment details

Study PEP005-025 was conducted at 21 study centers in the United States (19) and Australia (2). A total of 278 patients were randomized (255 (92%) in the US and 23 (8%) in Australia). Patient screening was started on 05 May 2009. The first patient was randomized on 05 June 2009 and the last patient completed the Day 57 visit on 02 September 2009.

Participants by arm

ArmCount
PEP005 (Ingenol Mebutate) Gel, 0.015%
PEP005 (ingenol mebutate) Gel 0.05% once daily for 3 consecutive days
142
Vehicle Gel
Vehicle gel once daily for 3 consecutive days
136
Total278

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyWithdrawal by Subject01

Baseline characteristics

CharacteristicPEP005 (Ingenol Mebutate) Gel, 0.015%Vehicle GelTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
69 Participants73 Participants142 Participants
Age, Categorical
Between 18 and 65 years
73 Participants63 Participants136 Participants
Region of Enrollment
Australia
11 participants12 participants23 participants
Region of Enrollment
United States
131 participants124 participants255 participants
Sex: Female, Male
Female
25 Participants24 Participants49 Participants
Sex: Female, Male
Male
117 Participants112 Participants229 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
20 / 1421 / 136
serious
Total, serious adverse events
1 / 1420 / 136

Outcome results

Primary

Complete Clearance of Actinic Keratoses (AK) Lesions

Complete clearance of the treatment field

Time frame: baseline and 57 days

Population: Intention to treat population

ArmMeasureValue (NUMBER)
PEP005 (Ingenol Mebutate) Gel, 0.015%Complete Clearance of Actinic Keratoses (AK) Lesions67 participants
Vehicle GelComplete Clearance of Actinic Keratoses (AK) Lesions7 participants
p-value: <0.001Cochran-Mantel-Haenszel
Secondary

Partial Clearance of Actinic Keratoses (AK)

Partial clearance defined as ≥ 75% reduction in the number of 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) Gel, 0.015%Partial Clearance of Actinic Keratoses (AK)96 participants
Vehicle GelPartial Clearance of Actinic Keratoses (AK)11 participants
p-value: <0.001Cochran-Mantel-Haenszel

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