The open label study is designed to assess the safety and efficacy of 0.05% PEP005 Gel when applied to an area of skin containing 4-8 AK lesions on non-head locations.

Inclusion Criteria:

• Patient is male or female and at least 18 years of age.

• Female patient must be of either:

  • Non-childbearing potential, post-menopausal, or there is a confirmed clinical history of sterility (e.g., the patient is without a uterus)
  • Childbearing potential, provided there are negative urine pregnancy test results prior to study treatment, to rule out pregnancy

Exclusion Criteria

• Cosmetic or therapeutic procedures within two weeks and within 2 cm of the selected treatment area.
• Treatment with immunomodulators, 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.