Study to Evaluate the Safety and Pharmacokinetics of Topically Applied 40% Lidocaine Gel Compared With Placebo in Subjects With Acute Herpes Zoster (Shingles) Pain
A Phase Ib Pilot Multiple Dose, Randomized-Withdrawal, Double-Blind, Placebo-Controlled Study to Evaluate the Safety and Pharmacokinetics of Topically Applied 40% Lidocaine Gel Compared With Placebo in Subjects With Acute Herpes Zoster Pain
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Phase 1
Contacts and Locations
Study Locations
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-
Victoria
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Melbourne, Victoria, Australia
- Nucleus Network
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-
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Subject is a male or female ≥ 18 years of age and ≤ 85 years of age.
Subject has brush-evoked allodynic pain intensity score ≥ 4 using the NPRS as determined by pain assessment during the physical examination at screening.
a. Onset must have occurred ≤ 20 days prior to randomization
- Subject has an average daily pain intensity score of ≥ 4 using the NPRS as determined by pain assessment during the physical examination at screening.
- Subject must have a diagnosis of herpes zoster (shingles).
- Subject has rash limited to trunk and limbs, with a total surface area of up to 300 cm2.
Exclusion Criteria:
- Subject has an active herpes zoster lesion on the face, head, neck, genital or rectal areas.
- Subject has rash limited to trunk and limbs, with a total surface area greater than 300 cm2.
- Subject has a known history of allergic reaction, hypersensitivity, or clinically significant intolerance to lidocaine, ingredients of the study drug, or local anesthetics of the amide type.
- Subject has target skin area (allodynic area and surrounding skin) that is not intact, is inflamed, or in the opinion of the Principal Investigator, consistent with rash due to acute herpes zoster.
- Subject has any other form of pain that was not discernible from herpes zoster (shingles) allodynia.
- Subject is taking Class I antiarrhythmic drugs (e.g., tocainide, mexiletine), or medications that could interact with the study drug or interfere with its evaluation.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
|
Experimental: CNTX-2022 (lidocaine gel, 40%)
Application of 1mL CTNX-2022 (40% Anhydrous Lidocaine Gel) topically applied to 300cm squared outlined area once daily (in the morning) for 8 days at the study site.
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|
|
Placebo Comparator: Placebo
Application of 1mL placebo topically applied to 300cm squared outlined area once daily (in the morning) for 8 days at the study site.
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
To evaluate the safety of topically applied 40% lidocaine gel measuring incidence, intensity, relationship, and seriousness of treatment-emergent AEs
Time Frame: 28 days
|
28 days
|
|
To evaluate the pharmacokinetics of topically applied 40% lidocaine gel measuring Tmax
Time Frame: 28 days
|
28 days
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
To assess the effect of 40% lidocaine gel on 0-10 numeric pain rating scale (NPRS) scores related to acute herpes zoster
Time Frame: 28 days
|
28 days
|
Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Principal Investigator: Michael Araco, MD, Nucleus Network Melbourne, Australia
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Estimate)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Skin Diseases
- Virus Diseases
- Infections
- DNA Virus Infections
- Skin Diseases, Infectious
- Skin Diseases, Viral
- Herpesviridae Infections
- Varicella Zoster Virus Infection
- Herpes Zoster
- Herpes Simplex
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Anti-Arrhythmia Agents
- Central Nervous System Depressants
- Peripheral Nervous System Agents
- Sensory System Agents
- Anesthetics
- Membrane Transport Modulators
- Anesthetics, Local
- Voltage-Gated Sodium Channel Blockers
- Sodium Channel Blockers
- Lidocaine
Other Study ID Numbers
Other Study ID Numbers
- 2022-HZ-011
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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