- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02787356
Standard TDS Irritation Study: Trained Skin Grader vs. Digital Imaging (TDS_TSG_DI)
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Subjects will be screened prior to dosing to ensure subjects meet all inclusion exclusion criteria. The test materials will be tested simultaneously. Skin sites on the paraspinal region will be utilized for application. The test sites will be randomized among the individual subjects according to their assigned identification number. All patches will be applied and removed by the laboratory staff.
Due to safety concerns, it is not recommended to simultaneously apply two whole, active, Lidocaine Patch 5% patches on the same subject during the 21-day period. The optimum design of this study will depend on the design of the test product patch. Since the RLD has a matrix design that can be safely cut, one-fourth of the patch can be used for these studies. If the test product patch also has a design that can be cut to a smaller size, it should also be cut in one-fourth and one-fourth of the test product patch applied simultaneously with one-fourth of a RLD patch (to separate skin sites).
Each test article will be applied to sites on the skin for a contact period of approximately 24 hours (+/-1 hr.), with the exception of the weekend (72 hours, +/- 1 hr.). There will be no visits during the weekend.
Evaluations will be made after removal of every patch by a single trained grader along with a single digital imaging instrument. Re-applications will be made to the same test sites unless reactions become so strong (combination of a number and letter grade of 3) as to make this unadvisable, at which point patch application will be discontinued for that test article.
Study Type
Phase
- Not Applicable
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Males and Females, age [18-65 years old or 18 years or older]
- Signed informed consent
- Good general health
Exclusion Criteria:
- Subject is pregnant or lactating.
- Medical history of condition that would significantly influence the immune response (e.g., primary or acquired immunodeficiencies, such as HIV positive or AIDS, allergic diseases, such as anaphylaxis, asthma or generalized drug reaction, neoplasms, such as lymphoma or leukemia, rheumatoid arthritis, or systemic lupus erythematosus).
- Medical history of significant dermatologic diseases or conditions, such as atopy, psoriasis, vitiligo or conditions known to alter skin appearance or physiologic response (e.g. diabetes, porphyria).
- History of significant dermatologic cancers (e.g. melanoma, squamous cell carcinoma), except basal cell carcinomas that were superficial and did not involve the investigative site.
- Medical history of hepatic disease
- Within three weeks prior to dosing, use of medications or treatments that would significantly influence or exaggerate responses to the test product or that would alter inflammatory or immune response to the product (e.g. cyclosporine, tacrolimus, systemic or topical corticosteroids, cytotoxic drugs, immune globulin,
- Bacillus Calmette-Guerin, monoclonal antibodies, radiation therapy).
- Within 72 hours prior to dosing, use of antihistamines or use of topical drugs at patch site.
- Subject has an obvious difference in skin color between arms or the presence of a skin condition, excessive hair at the application sites, scar tissue, tattoo, or coloration that would interfere with placement of test articles, skin assessment, or reactions to drug.
- Presence of open sores at the application site.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: TDS Lidocaine 5%; generic
TDS Lidocaine 5%; generic with trained skin graders and images of skin
|
TDS Lidocaine 5%; generic
|
Experimental: TDS Lidocaine 5%; RLD
TDS Lidocaine 5%; RLD with trained skin graders and images of skin
|
TDS Lidocaine 5%; RLD
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Assessing Accuracy of Berger & Bowman Dermal Response Scores Predicted from Images of Skin
Time Frame: 3 months
|
The accuracy of the image analysis system will be assessed on a test set of skin images by analyzing the results of an 8x8 confusion matrix, where the ground truth labels are the scores on the 8-point Berger & Bowman Dermal Response Scale assigned by trained observers, and the classification results are the predicted Berger & Bowman Dermal Response scores from the image analysis system.
Accuracy is defined as the number of predicted scores within 1 grade of the ground truth scores, divided by the total number of samples in the test set.
|
3 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Assessing Non-Inferiority of Generic Lidocaine 5% TDS from Images of Skin
Time Frame: 3 months
|
As a baseline, the non-inferiority of generic vs RLD Lidocaine will first be determined using trained observer scores in the image test set using the method described in "Draft Guidance on Lidocaine" (Rev.
Jan 2016), namely that the upper bound of the one-sided 95% confidence interval of the mean test product score minus 1.25 times the mean RLD score must be less than or equal to 0. Then, this same method will be used on the predicted scores in the image test set, and the determination will be compared to the baseline.
|
3 months
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Jonathan Dosik, MD, TKL Research, Inc.
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Anticipated)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Skin Manifestations
- 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
- RFA-FD-16-010-SRI-TKL-002
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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