PEP005 Gel - Biological Effects in Actinic Keratosis Assessed by Reflectance Confocal Microscopy

NCT01449513 | Completed Phase 1 Results

• 1 other identifier: LP0041-03
• Study Type: interventional
• Target: 24
• Locations: 1 country
• Sites: 1

Brief Summary

This trial will be conducted to explore the biological effects in the skin following treatment with PEP005 Gel, 0.05% administered for two consecutive days, assessed by reflectance confocal microscopy.

Conditions

Actinic Keratosis

Outcome Measures

Primary Outcomes (24)

• Change in Degree of Infiltration

  Change from baseline in the degree of infiltration of the epidermis by inflammatory cells following treatment with ingenol mebutate gel, 0.05% as assessed by Reflectance Confocal Microscopy (RCM) in actinic keratosis (AK) skin.This RCM imaging technique is a relatively new non-invasive, real-time evaluation method to generate horizontal skin sections at a resolution comparable to routine histology. The degree of infiltration of the epidermis by inflammatory cells will be based on "inflammation/small bright cells" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel. The degree of infiltration of the dermis by inflammatory cells will be based on "inflammatory cells in the dermis" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel.

  Baseline to Day 2

• Change in Degree of Infiltration

  Change from baseline in the degree of infiltration of the epidermis by inflammatory cells following treatment with ingenol mebutate gel, 0.05% as assessed by Reflectance Confocal Microscopy (RCM) in Sub actinic keratosis (AK) skin. The degree of infiltration of the epidermis by inflammatory cells will be based on "inflammation/small bright cells" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel. The degree of infiltration of the dermis by inflammatory cells will be based on "inflammatory cells in the dermis" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel.

  Baseline to Day 2

• Change in Degree of Infiltration

  Change from baseline in the degree of infiltration of the epidermis by inflammatory cells following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in normal skin. The degree of infiltration of the epidermis by inflammatory cells will be based on "inflammation/small bright cells" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel. The degree of infiltration of the dermis by inflammatory cells will be based on "inflammatory cells in the dermis" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel.

  Baseline to Day 2

• Change in Degree of Infiltration

  Change from baseline in the degree of infiltration of the epidermis by inflammatory cells following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in AK (actinic keratosis) skin

  Baseline to Day 3

• Change in Degree of Infiltration

  Change from baseline in the degree of infiltration of the epidermis by inflammatory cells following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in Sub AK (actinic keratosis) skin. The degree of infiltration of the epidermis by inflammatory cells will be based on "inflammation/small bright cells" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel. The degree of infiltration of the dermis by inflammatory cells will be based on "inflammatory cells in the dermis" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel.

  Baseline to Day 3

• Change in Degree of Infiltration

  Change from baseline in the degree of infiltration of the epidermis by inflammatory cells following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in normal skin The degree of infiltration of the epidermis by inflammatory cells will be based on "inflammation/small bright cells" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel. The degree of infiltration of the dermis by inflammatory cells will be based on "inflammatory cells in the dermis" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel.

  Baseline to Day 3

• Change in Degree of Infiltration

  Change from baseline in the degree of infiltration of the epidermis by inflammatory cells following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in AK (actinic keratosis) skin The degree of infiltration of the epidermis by inflammatory cells will be based on "inflammation/small bright cells" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel. The degree of infiltration of the dermis by inflammatory cells will be based on "inflammatory cells in the dermis" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel.

  Baseline to Day 8

• Change in Degree of Infiltration

  Change from baseline in the degree of infiltration of the epidermis by inflammatory cells following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in Sub AK (actinic keratosis) skin The degree of infiltration of the epidermis by inflammatory cells will be based on "inflammation/small bright cells" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel. The degree of infiltration of the dermis by inflammatory cells will be based on "inflammatory cells in the dermis" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel.

  Baseline to Day 8

• Change in Degree of Infiltration

  Change from baseline in the degree of infiltration of the epidermis by inflammatory cells following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in normal skin The degree of infiltration of the epidermis by inflammatory cells will be based on "inflammation/small bright cells" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel. The degree of infiltration of the dermis by inflammatory cells will be based on "inflammatory cells in the dermis" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel.

  Baseline to Day 8

• Change in Degree of Infiltration

  Change from baseline in the degree of infiltration of the epidermis by inflammatory cells following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in AK (actinic keratosis) skin The degree of infiltration of the epidermis by inflammatory cells will be based on "inflammation/small bright cells" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel. The degree of infiltration of the dermis by inflammatory cells will be based on "inflammatory cells in the dermis" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel.

  Baseline to Day 57

• Change in Degree of Infiltration

  Change from baseline in the degree of infiltration of the epidermis by inflammatory cells following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in Sub AK (actinic keratosis) skin The degree of infiltration of the epidermis by inflammatory cells will be based on "inflammation/small bright cells" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel. The degree of infiltration of the dermis by inflammatory cells will be based on "inflammatory cells in the dermis" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel.

  Baseline to Day 57

• Change in Degree of Infiltration

  Change from baseline in the degree of infiltration of the epidermis by inflammatory cells following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in normal skin The degree of infiltration of the epidermis by inflammatory cells will be based on "inflammation/small bright cells" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel. The degree of infiltration of the dermis by inflammatory cells will be based on "inflammatory cells in the dermis" (grading 0-3) as assessed by RCM from baseline across the trial period for the subjects receiving PEP005 Gel.

  Baseline to Day 57

• Change in Degree of Necrosis

  Change from baseline in the degree of necrosis in the epidermis following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in AK (actinic keratosis) skin

  Baseline to Day 2

• Change in Degree of Necrosis

  Change from baseline in the degree of necrosis in the epidermis following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in Sub AK (actinic keratosis) skin

  Baseline to Day 2

• Change in Degree of Necrosis

  Change from baseline in the degree of necrosis in the epidermis following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in normal skin

  Baseline to Day 2

• Change in Degree of Necrosis

  Change from baseline in the degree of necrosis in the epidermis following treatment with ingenol mebutate gel, 0.05% as assessed by RCM(Reflectance Confocal Microscopy) in AK (actinic keratosis) skin

  Baseline to Day 3

• Change in Degree of Necrosis

  Change from baseline in the degree of necrosis in the epidermis following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in Sub AK (actinic keratosis) skin

  Baseline to Day 3

• Change in Degree of Necrosis

  Change from baseline in the degree of necrosis in the epidermis following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in normal skin

  Baseline to Day 3

• Change in Degree of Necrosis

  Change from baseline in the degree of necrosis in the epidermis following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in AK (actinic keratosis) skin

  Baseline to Day 8

• Change in Degree of Necrosis

  Change from baseline in the degree of necrosis in the epidermis following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in Sub AK (actinic keratosis) skin

  Baseline to Day 8

• Change in Degree of Necrosis

  Change from baseline in the degree of necrosis in the epidermis following treatment with ingenol mebutate gel,0.05% as assessed by RCM (Reflectance Confocal Microscopy) in normal skin

  Baseline to Day 8

• Change in Degree of Necrosis

  Change from baseline in the degree of necrosis in the epidermis following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in AK (actinic keratosis) skin

  Baseline to Day 57

• Change in Degree of Necrosis

  Change from baseline in the degree of necrosis in the epidermis following treatment with ingenol mebutate gel, 0.05% as assessed by RCM (Reflectance Confocal Microscopy) in Sub AK (actinic keratosis) skin

  Baseline to Day 57

• Change in Degree of Necrosis

  Change from baseline in the degree of necrosis in the epidermis following treatment with ingenol mebutate gel, 0.05% as assessed by RCM in normal skin

  Baseline to Day 57

Study Arms (2)

PEP005 Gel 0.05%

ACTIVE COMPARATOR

active ingredient of PEP005: Ingenol mebutate

Drug: Ingenol mebutate

Placebo Gel

PLACEBO COMPARATOR

Vehicle of PEP005 Gel

Drug: Placebo Gel

Interventions

Ingenol mebutate DRUG

0.05% Ingenol mebutate Gel once daily for 2 consecutive days

Also known as: PEP005

PEP005 Gel 0.05%

Placebo Gel DRUG

Gel vehicle of PEP005

Placebo Gel

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Male or female subjects at least 18 years of age
• Subjects with AK lesions and subclinical AK lesions within a contiguous 25 cm2 area on the upper extremity
• Subjects must have a 25 cm2 area of normal skin on the inner upper arm
• Female subjects must be of either:• Non-childbearing potential, post-menopausal, or have a confirmed clinical history of sterility or • Childbearing potential, with a confirmed negative urine pregnancy test prior to exposure.
• Female subjects of childbearing potential must be willing to consent to using high effective methods of contraception
• Ability to follow trial instructions and likely to complete all trial requirements
• Obtained written informed consent prior to any trial-related procedures

You may not qualify if:

• Location of the selected treatment areas:• Within 5 cm of an incompletely healed wound or infected area of the skin • Within 10 cm of a suspected basal cell carcinoma (BCC) or squamous cell carcinoma(SCC)
• History or evidence of skin conditions other than the trial indication that would interfere with evaluation of the investigational product
• Clinical diagnosis/history or evidence of any medical condition that would expose a subject to an undue risk of a significant AE or interfere with assessments of safety during the course of the trial, as determined by Investigator clinical judgment
• Anticipated need for in-patient hospitalisation or in-patient surgery during the trial period.
• Current participation in any other interventional clinical trial
• Subjects who have received treatment with any non-marketed drug product within the last two months
• Previous enrolment in this clinical trial
• Prohibited Therapies and/or Medications 2 weeks prior to the Screening visit within 2 cm of selected treatment area:•Cosmetic or therapeutic procedures •Use of acid-containing therapeutic products • Use of topical salves or topical steroids
• Prohibited Therapies and/or Medications: within 4 weeks prior to the Screening visit: • Treatment with immunomodulators, cytotoxic drugs or interferon/interferon inducers,systemic medications that suppress the immune system, or with UVB
• Prohibited Therapies and/or Medications: within 8 weeks prior to the Screening visit: • Treatment with 5-FU, imiquimod, diclofenac, or photodynamic therapy: within 2 cm of the selected treatment areas.
• Use of systemic retinoids

Sponsors & Collaborators

• LEO Pharma: lead

Study Sites (1)

Charité - Universitätsmedizin Berlin

Berlin, 10117, Germany

Location

Related Links

• Clinical Trials at LEO Pharma

MeSH Terms

Conditions

Keratosis, Actinic

Interventions

3-ingenyl angelate

Condition Hierarchy (Ancestors)

Precancerous Conditions; Neoplasms; Keratosis; Skin Diseases; Skin and Connective Tissue Diseases

Results Point of Contact

• Title: Clinical Trial Disclosure Manager
• Organization: LEO Pharma A/S

ctr.disclosure@leo-pharma.com

+45 4494 5888

Study Officials

• Eggert Stockfleth, Prof Dr med

  Charite University, Berlin, Germany

  PRINCIPAL INVESTIGATOR

Publication Agreements

• PI is Sponsor Employee: No
• Restriction Type: OTHER
• Restrictive Agreement: Yes

Study Design

• Study Type: interventional
• Phase: phase 1
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: OTHER
• Intervention Model: PARALLEL
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: October 6, 2011
• First Posted: October 10, 2011
• Study Start: September 1, 2011
• Primary Completion: May 1, 2012
• Study Completion: May 1, 2012
• Last Updated: March 7, 2025
• Results First Posted: May 27, 2015

Record last verified: 2016-04

Data Sharing

• IPD Sharing: Will not share

Locations

DE (1)