Study of Imiquimod 5% Cream in Addition to Cryotherapy in the Management of Actinic Keratoses

April 21, 2008 updated by: Derm Research @ 888 Inc.

A Randomized, Parallel-Group, Vehicle-Controlled, Double-Blind Study of Topical Imiquimod 5% Cream Used as an Adjunct to Cryotherapy in the Management of Actinic Keratoses, With a Long-Term (1 Year) Follow-Up

Study Aims:

  • To compare the long-term efficacy and safety of imiquimod versus vehicle used as an adjunct to cryotherapy.
  • To assess and compare the recurrence rate and time to recurrence of the 2 different treatment groups.

Hypothesis: The imiquimod arm will produce a more prolonged clearing of Actinic Keratoses (AK) compared to the vehicle arm.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Evaluation of: (i) topical imiquimod 5% cream or (ii) vehicle cream used two times weekly for eight weeks starting two weeks post cryotherapy.

Study Aims:

  • To assess and compare the recurrence rate and time to recurrence of the 2 different treatment groups.
  • To assess and compare the efficacy of the 2 different treatment groups.
  • To assess and compare the safety of the 2 different treatment groups.

Study Design: 6 visits over 62 weeks

Study Type

Interventional

Enrollment

60

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • British Columbia
      • Vancouver, British Columbia, Canada, V4C 6X4
        • DermResearch @ 888 Inc
    • Ontario
      • Windsor, Ontario, Canada
        • Windsor Clinical Research
    • Quebec
      • Sainte-Foy, Quebec, Canada, G1V 4X7
        • Centre de Recherche Dermatologique, CRDQ

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Diagnosis of actinic keratosis with 4 or more discreet lesions on the face or balding scalp. Lesions must be within a treatment area not exceeding 50 cm2 (combined total must not exceed 50 cm2)
  • Women of childbearing potential using appropriate contraceptive methods

Exclusion Criteria:

  • Previous treatments with imiquimod for AK in the prescribed area within the past 5 months or cryosurgery in the same area within the past 4 weeks.
  • Patients unwilling to stay out of the sun or wear protective clothing or to use sunscreen with a minimum of SPF 15 during the study.
  • Basal or squamous cell carcinomas in the prescribed treatment area in the past 2 years.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Recurrence rate and time to recurrence of lesions

Secondary Outcome Measures

Outcome Measure
Time to reach treatment success
Percentage of patients who clear
Patient improvement assessment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Derm Research @ 888 Inc.

Collaborators

3M

Investigators

  • Principal Investigator: Yves Poulin, MD FRCPC, Centre de Recherche Dermatologique du Quebec Metropolitaine
  • Principal Investigator: Jerry KL Tan, MD FDRPC, U. of Western Ontario, Windsor Ontario
  • Principal Investigator: Richard Thomas, MD FRCPC, Derm Research @ 888 Inc.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2005

Primary Completion (Actual)

October 1, 2006

Study Completion (Actual)

December 1, 2006

Study Registration Dates

First Submitted

May 12, 2005

First Submitted That Met QC Criteria

May 12, 2005

First Posted (Estimate)

May 13, 2005

Study Record Updates

Last Update Posted (Estimate)

April 24, 2008

Last Update Submitted That Met QC Criteria

April 21, 2008

Last Verified

April 1, 2008

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • DR 2004-05

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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