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RecruitingNCT07245667Updated Nov 28, 2025

Topical Tolnaftate Stick for Tinea Pedis: An Open-Label Interventional Study

A Phase 2 interventional study of 1% Tolnaftate Stick Formula A and 1% Tolnaftate Stick Formula B in Tinea Pedis, sponsored by Propedix, Inc.. Recruiting at 2 sites in United States. Open to participants aged 16 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-11-28.

Sponsored by Propedix, Inc. · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
150
Allocation
Non-randomized
Ages
16 Years and older
Sex
All
01

Study summary

This study is designed to evaluate the safety and effectiveness of multiple 1% tolnaftate formulations delivered through novel stick-based vehicles in individuals with tinea pedis (athlete's foot).

Read the detailed description

To evaluate the efficacy and safety of 1% tolnaftate formulations delivered through novel stick-based vehicles in the treatment of subjects with potassium hydroxide (KOH)-positive tinea pedis.

02

Conditions studied

  • Tinea Pedis

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Keywords

  • tinea pedis
  • athletes foot
03

Who can participate

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

Inclusion criteria

  • Male or female, aged 16 or above
  • Clinical diagnosis of tinea pedis (For Cohort 4, positive symptomology is acceptable)
  • Confirmation of diagnosis with positive potassium hydroxide (KOH) microscopy (For Cohort 4, a negative KOH test is acceptable)
  • Signed and dated informed consent form
  • Willingness to comply with study protocol and availability for the duration of the study

Exclusion criteria

Exclusion Criteria:

  • Diagnosis of moccasin-type tinea pedis
  • Presence of serous exudate or pus
  • Treatment with a topical antifungal in the past 2 weeks
  • Treatment with a systemic antifungal in the past 4 weeks
  • Concurrent immunosuppressive or antimicrobial therapy
  • Liver disease
  • Pregnancy or breastfeeding
  • Use any other antifungal therapy during trial or within three months of starting the trial
  • Known hypersensitivity to any ingredients of trial agents
  • Patients with a current diagnosis of diabetes or neuropathy
04

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
150 participants (estimated)

Study arms

  • Experimental
    Tolnaftate Stick Formula A

    Participants will receive Formula A, a topical 1% tolnaftate formulation delivered through a stick-based applicator. The product is applied twice daily for four weeks.

    Drug: 1% Tolnaftate Stick Formula A

  • Experimental
    Tolnaftate Stick Formula B

    Participants will receive Formula B, a topical 1% tolnaftate formulation delivered through a stick-based applicator. The product is applied twice daily for four weeks.

    Drug: 1% Tolnaftate Stick Formula B

  • Experimental
    Tolnaftate Stick Formula C

    Topical antifungal stick containing 1% tolnaftate in the Formula C base. Applied twice daily for 4 weeks.

    Drug: 1% Tolnaftate Stick Formula C

Interventions

  • Drug1% Tolnaftate Stick Formula A

    Topical antifungal stick containing 1% tolnaftate in the Formula A base. Applied twice daily for 4 weeks.

  • Drug1% Tolnaftate Stick Formula B

    Topical antifungal stick containing 1% tolnaftate in the Formula B base. Applied twice daily for 4 weeks.

  • Drug1% Tolnaftate Stick Formula C

    Topical antifungal stick containing 1% tolnaftate in the PP2C-2003 base formulation. Applied twice daily for 30 days.

05

What researchers measure

Primary outcomes

  1. Percentage of Subjects with a Complete Cure at Week 4

    Primary Efficacy Endpoint: Effective treatment, defined as mycological cure, based on a negative potassium hydroxide (KOH) test at week 4.

    Time frame: Week 4

06

Study locations

2 of 2 sites recruiting
  • Kuchnir Dermatology and Dermatological Surgery
    Framingham, Massachusetts 01701, United States
    Recruiting
  • Kuchnir Dermatology and Dermatological Surgery
    Milford, Massachusetts 01757, United States
    Recruiting
07

References and documents

Individual participant data

Plan to share: No — Individual participant data (IPD) will not be shared outside the study team because this is a small study designed for internal evaluation of formulation performance and tolerability. Data will be presented only in aggregated, de-identified form in any publications or presentations.

No publications or documents are linked to this record.

08

Registry details

Key details

Study ID
NCT07245667
Lead sponsor
Propedix, Inc.
Responsible party
Sponsor
First posted
Nov 24, 2025
Start date
Dec 30, 2024
Primary completion
Feb 2026 (estimated)
Completion
Feb 2026 (estimated)
Last update
Nov 28, 2025

Study contacts

Prinicipal Investigator
Contact
cschanbacher@propedix.com
617-869-0126

Oversight

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

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