Potential Effect of Topical Imiquimod on Atrial Ectopy in Patients With Actinic Keratosis

Study Overview
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Brief Summary
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The purpose of this study is to determine the potential effect of topically applied 3.75% imiquimod cream on atrial ectopy in actinic keratosis (AK) patients. The primary endpoint is the change in the 24-hour supraventricular premature beat count. The secondary endpoint is the change in 24-hour supraventricular premature couplet and run counts and atrial fibrillation (% time); change in 24-hour mean heart rate; change in 24-hour ventricular premature beat count, ventricular premature couplet and run counts.

Detailed Description
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This study is a double-blind, randomized, placebo-controlled, 2-way crossover study designed to assess the potential effect of topically applied 3.75% imiquimod cream on atrial ectopy in actinic keratosis (AK) patients. Candidates for study participation will begin screening procedures up to 28 days prior to enrollment. Qualified subjects shall be admitted to the CRU on Day -1 for baseline evaluations and will be randomized to one of two possible treatment sequences. Each subject will receive both the active 3.75% imiquimod cream and the matching placebo in a randomized crossover fashion with a 2-week washout in between each treatment. The application area is the entire face (exclusive of nares, vermilion, periocular areas and ears) or balding scalp. Atrial ectopy will be monitored for 24 hours at Baseline (Day -1; prior to the first dose of study medication), and at the conclusion of each 14-day treatment period using a continuous 12-lead digital Holter recorder. Adverse events, concomitant medication use, study medication accountability, and subject compliance will be reviewed at each visit.

Official Title
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A Double-blind, Randomized, Placebo-controlled, 2-way Crossover Study to Assess the Potential Effect of Topically Applied Imiquimod Cream on Atrial Ectopy in Patients With Actinic Keratosis

Conditions
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Actinic Keratosis

Intervention / Treatment
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* Drug: Imiquimod cream 3.75%
* Drug: Placebo cream


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Male and female AK patients with at least 5 typical visible or palpable AK lesions on face or balding scalp AK patients in otherwise good general health age 18 years and above Female subjects of childbearing potential must be non-pregnant and non-lactating Exclusion Criteria: Previous clinical study participation within 30 days (drug or device) Evidence of clinically significant diseases History of drug or alcohol abuse Subjects with uncontrolled systemic hypertension, NYHA heart failure classification Class > II, or a history of atrial fibrillation or atrial flutter Subjects using imiquimod or interferon within 30 days prior to the first dose of study medication Have known allergies to any excipient in the study cream Have melanoma anywhere on the body

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active Comparator: Imiquimod cream<br> | Drug: Imiquimod cream 3.75%<br>* 3.75% cream, applied daily for 2 weeks<br>|
| Placebo Comparator: Placebo cream<br> | Drug: Placebo cream<br>* placebo cream applied daily for 2 weeks<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in 24-hour supraventricular beat count |  | Day 14 of each treatment period | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in 24-hour supraventricular premature couplet and run counts and atrial fibrillation (% time) |  | Day 14 of each treatment period | 
| Change in 24-hour mean heart rate |  | Day 14 of each treatment period | 
| Change in 24-hour ventricular premature beat count, ventricular premature couplet and run counts |  | Day 14 of each treatment period | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Actinic keratosis, Atrial ectopy