Safety and Efficacy of Escalating Doses of LEO 43204 Applied Once Daily for Two Consecutive Days on Approximately 250 cm2 on Trunk and Extremities in Subjects With Actinic Keratosis
1 other identifier
interventional
224
2 countries
21
Brief Summary
Part 1: To identify Maximum Tolerated Dose (MTD) levels of LEO 43204 after once daily treatment for two consecutive days Part 2: To evaluate the efficacy of LEO 43204 in two doses after once daily treatment for two consecutive days compared to vehicle
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started May 2014
21 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
April 18, 2014
CompletedFirst Posted
Study publicly available on registry
April 22, 2014
CompletedStudy Start
First participant enrolled
May 1, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2015
CompletedResults Posted
Study results publicly available
January 4, 2019
CompletedMarch 6, 2025
November 1, 2018
1 year
April 18, 2014
November 14, 2018
February 21, 2025
Conditions
Outcome Measures
Primary Outcomes (2)
Part 1: Participants Experiencing Dose Limiting Toxicity (DLT) Based on Local Skin Responses (LSRs)
The number participants experiencing a DLT was used to identify the maximum tolerated dose(MTD) levels of LEO 43204 after once daily treatment for 2 consecutive days.The MTD was defined as the highest dose level at which less than 4 out of 12 participants experienced a DLT. A DLT was defined as one or more of the following three LSRs: * Crusting Grade 4 * Erosion/Ulceration Grade 4 * Vesiculation/Pustulation Grade 4 or two or more of the following five LSRs: * Crusting Grade 3 * Swelling Grade 4 * Erosion/Ulceration Grade 3 * Vesiculation/Pustulation Grade 3 or other clinically relevant signs or symptoms observed, which the Investigator judged to be counted as a DLT. The LSRs consists of the following 6 categories: Erythema, flaking/scaling, crusting, swelling, vesiculation/pustulation, erosion/ulceration. Each individual LSR category was given a numeric grade of severity from 0-4. Grade 0 being no presence and Grade 4 being the highest grade of severity.
From Day 1 up to and including Day 8
Part 2: Percent Reduction From Baseline in Actinic Keratosis (AK) Count
Percent reduction from baseline in clinically visible actinic keratosis lesions (AKs) identified in the treatment area.
From baseline to Week 8
Secondary Outcomes (2)
Part 2: Participants With Complete Clearance of AKs (Last Observation Carried Forward [LOCF])
From baseline to Week 8
Part 2: Participants With Partial Clearance of AKs (LOCF)
From baseline to Week 8
Study Arms (4)
LEO 43204
EXPERIMENTALOpen-label, dose-escalation, 2-day treatment
LEO 43204 Dose 0.1%
EXPERIMENTALLEO 43204 dose 0.1% once daily for two consecutive days
LEO 43204 Dose 0.075%
EXPERIMENTALLEO 43204 dose 0.075% once daily for two days
Placebo
PLACEBO COMPARATORPlacebo once daily for two days
Interventions
Eligibility Criteria
You may qualify if:
- Part 1: Subjects with 5 to 20 clinically typical, visible and discrete AKs on the arm
- Part 2: Subjects with 5 to 20 clinically typical, visible and discrete AKs on the extremities or trunk
You may not qualify if:
- Location of the treatment area
- within 5 cm of an incompletely healed wound
- within 5 cm of a suspected basal cell carcinoma (BCC) or squamous cell carcinoma (SCC)
- Prior treatment with ingenol mebutate gel on the treatment area
- Lesions in the treatment areas that have:
- atypical clinical appearance (e.g., hypertrophic, hyperkeratotic or cutaneous horns) and/or
- recalcitrant disease (e.g., did not respond to cryotherapy on two previous occasions)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- LEO Pharmalead
Study Sites (21)
Omni Dermatology
Phoenix, Arizona, 85018, United States
Torrance Clinical Research Institute Inc.
Lomita, California, 90717, United States
Dermatology Cosmetic Laser Medical Associates of La Jolla, Inc.
San Diego, California, 92121, United States
Dermatology Associates and Research
Coral Gables, Florida, 33134, United States
Leavitt Medical Associates of Florida
Ormond Beach, Florida, 32174, United States
Deaconess Clinic, Inc.
Evansville, Indiana, 47713, United States
Hudson Dermatology, LLC
Evansville, Indiana, 47714, United States
Indiana Clinical Trials Center
Plainfield, Indiana, 46168, United States
DermAssociates, PC
Rockville, Maryland, 20850, United States
Great Lakes Research Group, Inc.
Bay City, Michigan, 48706, United States
The Dermatology Group, P.C.
Verona, New Jersey, 07044, United States
University of Pittsburgh Medical Center
Pittsburgh, Pennsylvania, 15213, United States
Pflugerville Dermatology Clinical Research Center, Inc.
Pflugerville, Texas, 78660, United States
Kirk Barber Research
Calgary, Alberta, T2G 1B1, Canada
Enverus Medical
Surrey, British Columbia, V3R 6A7, Canada
Skin Care Centre
Vancouver, British Columbia, V5Z 4E8, Canada
Winnipeg Clinic Dermatology Research
Winnipeg, Manitoba, R3C 0N2, Canada
UltraNova Skincare
Barrie, Ontario, L4M 6L2, Canada
Dermatrials Research Incorporated
Hamilton, Ontario, L8N 1V6, Canada
The Guenther Dermatology Research Centre
London, Ontario, N6A 3H7, Canada
SKiN Centre for Dermatology
Peterborough, Ontario, K9J 1Z2, Canada
Related Links
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Clinical Trial Disclosure Specialist
- Organization
- LEO Pharma A/S
Study Officials
- PRINCIPAL INVESTIGATOR
Gary Goldenberg, MD
Mount Sinai School of Medicine, Dermatology Faculty
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- OTHER
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 18, 2014
First Posted
April 22, 2014
Study Start
May 1, 2014
Primary Completion
May 1, 2015
Study Completion
May 1, 2015
Last Updated
March 6, 2025
Results First Posted
January 4, 2019
Record last verified: 2018-11
Data Sharing
- IPD Sharing
- Will not share