Study to Evaluate the Safety and Efficacy of Tapinarof in Adults With Palmoplantar Keratoderma

NCT ID: NCT06561321

Last Updated: 2024-12-20

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

6 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-10-30

Study Completion Date

2026-11-01

Brief Summary

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The purpose of this study is to assess adults with palmoplantar keratoderma (thickening skin layer on palms and soles) who are treated with the study drug, tapinarof. This is a naturally occuring compound used for the treatment of psoriasis. This study is being done to find out how well and safe this drug is for stopping or treating keratoderma. This study aims to investigate the positive impacts of daily topical Tapinarof use in the improvement of Keratoderma. Clinical efficacy and safety profile of prescribing Tapinarof for this condition will be evaluated.

Detailed Description

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This study aims to assess the benefits of the treatment. Should the treatment demonstrate benefits (as defined by the primary outcome measure) without any observed serious adverse events (SAEs), further clinical trials would be justified. If at least 2 out of 6 subjects benefits from the treatment (as defined by our primary outcome measure) and there are no SAEs, future clinical trials would be warranted. This initial data will determine whether it is worthwhile to proceed with a phase 2 trial, that will be both blinded and well-controlled.

The study is designed to gather preliminary experiences that can be used to design subsequent, well-controlled studies that are appropriately powered for statistical analysis. Currently, there is not enough experience with this medication in treating this specific condition, which is necessary to design successful randomized controlled trials (RCTs) for regulatory approval by the FDA. In dermatology, conducting studies in this manner is standard practice.

Conditions

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Palmoplantar Keratoderma

Keywords

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Dermatology

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

The treatment duration will span 16 weeks.

1. Following this 16-week period, participants who achieve disease clearance may discontinue the treatment. Patients who stop treatment at 16 weeks will be assessed for their sustained drug response, and their status of clearance will be followed at regularly scheduled visits up to 52 weeks.
2. For those whose condition has not cleared, they will continue with the extension period with the treatment from 16 weeks until their disease becomes clear or until the conclusion of the study (52 weeks), whichever comes first.

At the 52-week there will be a follow-up visit for all patients to monitor the response and check if they have maintained their response. As the drug already has a good safety profile and multiple assessments/outcome measures are being implemented, no additional follow-up is necessary but patients will be educated to come in for check-ups if any AEs persist.
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Tapinarof Drug Treatment

Subjects in this arm will apply Tapinarof 1% cream topically once daily for a 16-week open-label treatment period. Participants who achieve disease clearance after 16 weeks may discontinue treatment and will be monitored for sustained response up to 52 weeks. Those who do not achieve clearance will continue the treatment during an extension period for up to 36 additional weeks or until clearance is achieved, whichever comes first. Regular follow-up visits will assess the duration of disease clearance and monitor for any potential recurrence of keratoderma.

Group Type EXPERIMENTAL

Tapinarof

Intervention Type DRUG

Daily topical Tapinarof use will stop disease advancement and improve the quality of life in patients with palmoplantar keratoderma, through its AhR \& NRF2 agonism properties.

Interventions

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Tapinarof

Daily topical Tapinarof use will stop disease advancement and improve the quality of life in patients with palmoplantar keratoderma, through its AhR \& NRF2 agonism properties.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Ability to discern and provide written informed consent and voluntarily adhere to all of the protocol requirements
* Male or female subjects in their adult years (≥ 18 years of age), inclusive, from the time of providing written subject-investigator agreement.
* Confirmed clinical diagnosis of palmoplantar keratoderma.

Exclusion Criteria

* Treatment with any of the following medications and therapies during the duration of the study\*:

* Topical corticosteroids
* Keratolytic agents (eg, 6% salicylic acid, 70% propylene glycol, 30% water)
* Topical retinoids
* Topical vitamin D ointment (calcipotriol)
* Oral retinoids (acitretin)

* If on any of these then a washout period of at least 2 weeks will be enforced before the study begins. This washout period is meant to ensure that any effects or residues from previous treatments are minimized before starting the study.
* Prior exposure to Tapinarof treatment
* Known history or suspicion of hypersensitivity reactions, or contraindications to any or all components of the drug or drugs of similar properties.
* Currently participating in another clinical study for the same purpose.
* Potential or confirmed pregnancy: Individuals who are currently pregnant or have confirmed pregnancy at the time of screening will be excluded from participation in the study. This criterion aims to ensure the safety of participants and adhere to ethical considerations regarding the potential risks associated with the study interventions during pregnancy.
* Any other factors specifically not listed above but deemed patient unsuitable by the discretion of the investigators.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Dermavant Sciences, Inc.

INDUSTRY

Sponsor Role collaborator

Indiana University

OTHER

Sponsor Role lead

Responsible Party

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David Rosmarin

Chair, Department of Dermatology

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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David Rosmarin, MD

Role: PRINCIPAL_INVESTIGATOR

Dermatology

Locations

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Indiana University Department of Dermatology

Indianapolis, Indiana, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Bhavika Mandi

Role: CONTACT

Phone: 3172747702

Email: [email protected]

Flossy Lincoln

Role: CONTACT

Phone: (317) 274-8750

Email: [email protected]

Facility Contacts

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Bhavika Mandi

Role: primary

Flossy Lincoln

Role: backup

Related Links

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https://pubmed.ncbi.nlm.nih.gov/27183391/

Kerns ML;Hakim JM;Lu RG;Guo Y;Berroth A;Kaspar RL;Coulombe PA; (n.d.). Oxidative stress and dysfunctional Nrf2 underlie Pachyonychia Congenita phenotypes. The Journal of clinical investigation

http://link.springer.com/article/10.1007/s40265-022-01748-6

Keam, S. J. (2022, August 17). Tapinarof Cream 1%: First approval - drugs. SpringerLink

Other Identifiers

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21197

Identifier Type: -

Identifier Source: org_study_id