Study to Determine the Safety of Two Applications of PEP005 Topical Gel to Superficial Basal Cell Carcinoma

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00108134
Recruitment Status : Completed
First Posted : April 15, 2005
Last Update Posted : December 24, 2008
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Brief Summary:
The purpose of this study is to determine whether topical application of PEP005 is safe for the treatment of superficial basal cell carcinoma.

Condition or disease Intervention/treatment Phase
Basal Cell Carcinoma Drug: PEP005 Phase 2

Detailed Description:
Basal cell carcinomas (BCCs) are a common skin problem largely caused by long term sun exposure. Current treatments include surgery, curettage/desiccation and simple excision, which are often cosmetically disfiguring. Non-invasive alternative therapy for treatment of BCC lesions is thus being researched. Sap from the plant Euphorbia peplus has been used for many years in Australia as a "folk" remedy to treat a number of skin conditions. The active component of Euphorbia peplus has been isolated and made into a gel applied directly to the skin by Peplin Ltd. To date, only one well-controlled study with PEP005 gel in humans has been completed. Sixteen patients received a single application of PEP005 0.01% or vehicle gel to actinic keratoses on the chest, shoulders, back and/or arms. Results show good tolerance and evidence of activity. The current study is designed to evaluate the safety of two applications of PEP005 gel in patients with superficial basal cell carcinoma (sBCC) on the arms, shoulders, chest, face and/or scalp, testing three concentrations according to two treatment regimens. Approximately 60 patients are planned to be included from multiple Australian centers. Efficacy and cosmetic outcome will be assessed and a recommended treatment regimen will be determined. Assignment to treatment is random and patients and medical staff will be blinded as to the treatment. Patients will have two visits for treatment application and will return for check-up visits the day after the first application and several times thereafter for approximately 3 months.

Study Type : Interventional  (Clinical Trial)
Enrollment : 60 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Treatment
Official Title: A Multi-Center, Randomized, Double-Blind, Parallel-Group, Vehicle-Controlled Study to Determine the Safety of PEP005 0.0025%, 0.01% and 0.05% Gel With Two Treatment Schedules, Day 1 & 2 or Day 1 & 8 Applications to Superficial Basal Cell Carcinoma
Study Start Date : March 2005
Actual Primary Completion Date : March 2006
Actual Study Completion Date : March 2006

Resource links provided by the National Library of Medicine

U.S. FDA Resources

Primary Outcome Measures :
  1. Safety

Secondary Outcome Measures :
  1. Efficacy

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Male or female patients at least 18 years of age
  • One sBCC on the arm, shoulder, chest, face, neck, abdomen, leg, back or scalp suitable for surgical excision
  • Histological confirmation of sBCC based on the central dermatopathologist's evaluation of the punch biopsy
  • Longest pre- and post-biopsy diameter of the sBCC lesion between 4 mm and 15 mm
  • Maximum thickness of 4 mm of the sBCC lesion
  • Laboratory values 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
  • Male patients with a female partner of childbearing potential must use an approved form of contraception during the study and for 4 weeks after the last visit
  • Agreement from the patient to allow photographs of all selected lesions (including the face) to be taken and used as part of the study data package

Exclusion Criteria:

  • Location of the outside margin of the anticipated treatment area of the sBCC selected for treatment:

    1. within 10 cm of a malignant lesion that will require treatment during the study
    2. within 5 cm of an incompletely healed wound
    3. within 2 cm of a pre-malignant lesion (e.g. actinic keratosis lesion)
    4. within 2 cm of the open eyelid margins
    5. within 1 cm of a scar or an area previously treated with surgical excision
    6. on the lips
    7. on the breast
    8. on the hand or foot
    9. in a skin crease
  • sBCC lesion selected for treatment requiring Mohs micrographic surgery
  • Presence of known or suspected metastatic disease
  • Histological evidence of actinic keratoses or nBCC in the screening visit biopsy sample
  • Histological evidence of BCC with micro-nodular features or squamous metaplasia, sclerosing BCC (i.e. desmoplastic or morphoeic), or BCC with perineural involvement in the screening visit biopsy sample
  • History of recurrence of the sBCC lesion
  • History or evidence of skin diseases which would interfere with evaluation of the treatment area (e.g. eczema, unstable psoriasis, xeroderma pigmentosa)
  • Known sensitivity to any of the ingredients in the study medication
  • A cosmetic or therapeutic procedure (e.g. use of liquid nitrogen, surgical excision, curettage, dermabrasion, medium or greater depth chemical peel, laser resurfacing) within 10 cm of the selected sBCC lesion during the 3 months prior to study entry or anticipated treatment within 10 cm of the selected lesion during the study
  • Treatment with 5-fluorouracil, imiquimod, diclofenac or photodynamic therapy:

    1. of lesions located within 10 cm of the selected sBCC lesion during the 3 months prior to study entry or
    2. anywhere during the 4 weeks prior to study entry or anticipated treatment during the study
  • Use of acid-containing products (e.g. salicylic acids or fruit acids, such as alpha and beta hydroxy acids and glycolic acids), topical retinoids or light chemical peels within 10 cm of the selected sBCC lesion during the 3 months prior to study entry or anticipated treatment in this same area during the study
  • Treatment with immuno-modulators (e.g. cyclosporine, prednisone, methotrexate, infliximab or other biological agents), cytotoxic drugs (e.g. vinblastine, cyclophosphamide, azathioprine, chlorambucil, methotrexate), or interferon/interferon inducers during the 4 weeks prior to study entry or anticipated treatment during the study
  • Treatment with psoralen plus UVA or use of UVB therapy during the 6 months prior to study entry or anticipated treatment during the study
  • Use of systemic retinoids (e.g. isotretinoin, acitretin) during the 6 months prior to study entry or anticipated treatment during the study
  • Anticipated excessive or prolonged exposure to ultraviolet light (e.g. sunlight, tanning beds) or use of topical salves, creams or ointments to the selected lesion during the study
  • Anticipated need for hospitalization or non-dermatological surgery during the study
  • Concurrent disease that suppresses the immune system (e.g. HIV) or uncontrolled systemic disease (e.g. uncontrolled hypertension, poorly controlled diabetes)
  • Current evidence of chronic alcohol or drug abuse
  • Current enrolment in an investigational drug or device study or participation in such a study within 30 days of entry into this study
  • Diagnosis of xeroderma pigmentosa or Gorlin Syndrome (i.e. Basal Cell Nevus Syndrome)
  • A condition or situation which in the Investigator's opinion may put the patient at significant risk, may confound the study results, or may interfere significantly with the patient's participation in the study
  • Females of child bearing potential (a female is considered of childbearing potential unless she is postmenopausal, i.e., no menses for at least 12 consecutive months, or is without a uterus)

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00108134

Australia, New South Wales
Southderm Pty Ltd
Sydney, New South Wales, Australia, 2010
St George Dermatology & Skin Cancer Centre
Sydney, New South Wales, Australia, 2217
Australia, Queensland
Siller Medical
Brisbane, Queensland, Australia, 4000
Belmont Specialist Centre
Brisbane, Queensland, Australia, 4152
The Skin Centre
Gold Coast, Queensland, Australia, 4217
Australia, Victoria
Skin and Cancer Foundation
Melbourne, Victoria, Australia, 3053
Australia, Western Australia
Freemantle Dermatology
Freemantle, Western Australia, Australia, 6160
Private Dermaology Clinic
Fremantle, Western Australia, Australia, 6160
St John of God Dermatology
Subiaco, Western Australia, Australia, 6008
Sponsors and Collaborators
Principal Investigator: Greg Siller Identifier: NCT00108134     History of Changes
Other Study ID Numbers: PEP005-003
First Posted: April 15, 2005    Key Record Dates
Last Update Posted: December 24, 2008
Last Verified: December 2008

Keywords provided by Peplin:
Superficial basal cell carcinoma
basal cell carcinoma

Additional relevant MeSH terms:
Carcinoma, Basal Cell
Neoplasms, Glandular and Epithelial
Neoplasms by Histologic Type
Neoplasms, Basal Cell