Clinical trial NCT04150536: Pharmacokinetics and Adhesion of Lidocaine Topical System 1.8% Under Conditions of Heat and Exercise
Official title: An Open Label, Randomized, Three-treatment, Three-sequence, Three-period, Cross-over, Pharmacokinetic and Adhesion Performance Study of Lidocaine Patch 36 mg/Patch (1.8%) in Fasting, Healthy, Adult, Human Subjects, With Physical Exercise, Heat and Normal Conditions.
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE1
Conditions: Healthy
Lead sponsor: Scilex Pharmaceuticals, Inc.
Sponsor class: INDUSTRY
First posted: 2019-11-04
Enrollment: 12
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Primary purpose: OTHER

Brief summary: The objectives of this study are to evaluate the pharmacokinetic and adhesion performance of ZTlido (lidocaine topical system) 1.8% during physical exercise, application of heat, and under normal conditions.

Detailed description: In this open-label, three-period crossover study, 12 healthy, adult male and female subjects are randomized to 1 of 3 treatment sequences. During each treatment period, subjects have three lidocaine topical systems applied to their back for 12 hours with 7-day washout between treatments. In each treatment period, the subject will either exercise (Treatment A), apply a heating pad (Treatment B), or refrain from these activities (Treatment C) while wearing the topical system. Blood samples for lidocaine PK will be collected pre-dose until 48 hours. Adhesion will be monitored throughout the wear time and skin irritation will be assessed the topical system is removed.

Eligibility criteria: Key Inclusion Criteria:

* Must be healthy based on by medical history, laboratory work, and physical exam
* Be at least 18 years of age
* If childbearing potential, use of acceptable form of birth control
* In the case of females of childbearing potential, have a negative serum pregnancy test

Key Exclusion Criteria:

* Allergy or known hypersensitivity to lidocaine, amide-type local anesthetics, or any component of the product formulation
* Any major medical illness 3 months prior or any significant history or ongoing chronic medical illness affecting the major body systems, including the skin
* Subjects with conditions that might affect application of the product or its adhesive properties (including psoriasis, eczema, atopic dermatitis, damaged or irritated epidermal layer, and excessive hair or oil on the skin)
* History of addiction, abuse, and misuse of any drug
* Use of nicotine-containing products within 30 days

Primary outcomes:
measure: Peak plasma concentration (Cmax) of lidocaine
timeFrame: 0, 2, 4, 6, 9, 10, 11, 12, 13, 14, 16, 18, 20, 22 24 and 48 hours post-dose
measure: Area under the Plasma Concentration-Time Curve (AUC) from Time 0 to Time 48 hours
timeFrame: 0, 2, 4, 6, 9, 10, 11, 12, 13, 14, 16, 18, 20, 22 24 and 48 hours post-dose
measure: Area under the Plasma Concentration-Time Curve (AUC) from Time 0 to Time Infinity
timeFrame: 0, 2, 4, 6, 9, 10, 11, 12, 13, 14, 16, 18, 20, 22 24 and 48 hours post-dose
measure: Cumulative Adhesion Score
timeFrame: 0, 0.5, 3, 6, 9, 12 hours post-dose
Secondary outcomes:
measure: Dermal Response Score
timeFrame: 12.5 and 14 hours post-dose
Other outcomes:
Locations:
Study officials:
affiliation: Axis Clinicals
name: John Peterson, PharmD, RPh
role: PRINCIPAL_INVESTIGATOR
References:
citation: Fudin J, Wegrzyn EL, Greuber E, Vought K, Patel K, Nalamachu S. A Randomized, Crossover, Pharmacokinetic and Adhesion Performance Study of a Lidocaine Topical System 1.8% During Physical Activity and Heat Treatment in Healthy Subjects. J Pain Res. 2020 Jun 10;13:1359-1367. doi: 10.2147/JPR.S238268. eCollection 2020.