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CompletedNCT04319926Updated Apr 24, 2024

Adhesion Performance Study of Lidocaine Topical System 1.8% Compared to Generic Lidocaine Patch 5% in Healthy, Adult, Human Subjects

A Phase 1 interventional study of lidocaine topical system 1.8% and lidocaine patch 5% in Healthy, sponsored by Scilex Pharmaceuticals, Inc.. Completed at 1 site in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-04-24.

Sponsored by Scilex Pharmaceuticals, Inc. · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Sep 2018, 8 years ago, and no results have been posted to the registry.
  • Registered 1 year 6 months after the study started (first participant enrolled Sep 2018, registered Mar 2020).
Phase
Phase 1
Study type
Interventional
Enrollment
24
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

An open label, randomized, two-treatment, two-period, single-dose study evaluating the product adhesion in healthy, adult subjects using ZTlido 1.8% Topical System and a generic Lidocaine Patch 5%

02

Conditions studied

  • Healthy

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03

In context

Tissue Adhesions

241 studies on the registry are indexed under Tissue Adhesions; 29 are open to participants now.

This study's enrollment of 24 is below the median of 60 across 184 interventional studies indexed under Tissue Adhesions.

Browse Tissue Adhesions studies →

Lead sponsor

Scilex Pharmaceuticals, Inc. is the lead sponsor of 13 studies on the registry; none are open to participants now.

Of its 12 completed or terminated interventional studies of FDA-regulated products, 2 (17%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Eligibility criteria

Key Inclusion Criteria:

  • Must be healthy based on by medical history, laboratory work, ECG, and physical exam with BMI range between 18.00 and 30.00 kg/m2 inclusive.
  • 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
  • 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 local anesthetics of antiarrhythmic drugs (such as tocainide or mexiletine) within 14 days prior to product application
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
24 participants (actual)

Study arms

  • Experimental
    Lidocaine Patch (Sequence T1T2)

    Subjects receive both lidocaine topical system 1.8% and the generic lidocaine patch 5%. The sequence in which they receive the lidocaine products is determined by random assignment. For subjects in Arm 1, lidocaine 1.8% topical systems are applied in Period 1, and the generic lidocaine 5% patches are applied in Period 2.

    Drug: lidocaine topical system 1.8% · Drug: lidocaine patch 5%

  • Experimental
    Lidocaine Patch (Sequence T2T1)

    Subjects receive both lidocaine topical system 1.8% and the generic lidocaine patch 5%. The sequence in which they receive the lidocaine products is determined by random assignment. For subjects in Arm 2, generic lidocaine 5% patches are applied in Period 1, and the lidocaine 1.8% topical systems are applied in Period 2.

    Drug: lidocaine topical system 1.8% · Drug: lidocaine patch 5%

Interventions

  • Druglidocaine topical system 1.8%

    One topical system is applied to the subject's back for 12 hours.

    Also known as: lidocaine patch 1.8%, ZTlido

  • Druglidocaine patch 5%

    One generic lidocaine patch is applied to the subject's back for 12 hours.

06

What researchers measure

Primary outcomes

  1. Mean Percent Adhesion

    Percent adhesion is assessed by laying a transparent sheet the exact size of the product over the top of the product and outlining areas of adhesion with a marker on the transparent sheet. The area excluded from the adhered area will be assessed to determine the degree of lift-off. Adhesion is assessed every 3 hours after product application. Mean percent adhesion is calculated as the sum of scores at each assessment time point divided by the total number of observations.

    Time frame: 12 hours post-dose

07

Study locations

1 site
  • AXIS Clinicals
    Dilworth, Minnesota 56529, United States
08

References and documents

Publications

  • Gudin J, Webster LR, Greuber E, Vought K, Patel K, Kuritzky L. Open-Label Adhesion Performance Studies of a New Lidocaine Topical System 1.8% versus Lidocaine Patches 5% and Lidocaine Medicated Plaster 5% in Healthy Subjects. J Pain Res. 2021 Feb 23;14:513-526. doi: 10.2147/JPR.S287153. eCollection 2021. PubMed 33654425 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 24, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04319926
Lead sponsor
Scilex Pharmaceuticals, Inc.
Responsible party
Sponsor
First posted
Mar 24, 2020
Start date
Sep 7, 2018
Primary completion
Sep 9, 2018
Completion
Sep 9, 2018
Last update
Apr 24, 2024

Study contacts

Patrick Luger, MD
principal investigator · AXIS Clinicals

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Apr 2024. You cannot join it, but the record below documents what was studied.

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