ClinicalTrials.gg
CompletedNCT04265521Updated Feb 15, 2021

Study With BioCool Footcare in Subjects With Tinea Pedis Interdigitalis and Heel Cracks, Calluses and/or Dry Feet

An interventional study of Biocool Footcare in Foot Fungus, Tinea and Tinea Pedis, sponsored by Biocool AB. Completed at 2 sites in Sweden. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-02-15.

Primary conditionTinea PedisRegistry: TineaReclassifiedWhy we changed it
Registry
Tinea — the first condition term the registry derived for this study.
ClinicalTrials.gg
Tinea Pedis
Why
  1. The study's listed conditions name Tinea Pedis, a narrower term within Tinea.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Biocool AB · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
25
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

A prospective, open, post-market study that will enroll male and female subjects diagnosed with foot fungus and at least one of the following conditions: heel cracks, calluses and/or dry feet. The investigation will consist of approximately 48 subjects (considering a 10% drop-out/screening failure rate) fulfilling the eligibility criteria for the study. Each subject will be treated with the study product, BioCool Footcare (footbath), for 3 weeks. The study duration is estimated to 5 months including recruiting, treatment and follow-up period.

02

Conditions studied

  • Foot Fungus
  • Tinea
  • Tinea Pedis
  • Mycoses
  • Skin Diseases

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03

In context

Tinea Pedis Reclassified

73 studies on the registry are indexed under Tinea Pedis; 8 are open to participants now.

This study's enrollment of 25 is below the median of 128 across 66 interventional studies indexed under Tinea Pedis.

Browse Tinea Pedis studies →

Lead sponsor

Biocool AB is the lead sponsor of 2 studies on the registry; none are open to participants now.

Compared within Tinea Pedis, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Tinea. The counts are of registry records indexed under each term, refreshed daily. How we classify →

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

The subjects have to meet all of the following criteria to be eligible to participate in the clinical investigation:

  1. Signed form
  2. > 18 years of age
  3. Males and females
  4. Tinea Pedis (Athlete's foot) confirmed with total symptom score graded between 6-16 (erythema, erosions, macerations, pruritus, fissures, burning/stinging, hyperkeratosis and odour) using a 4-point severity scale (0=absent, 1=mild, 2=moderate and 3=severe). NOTE! maximum total score is 24.

    • Score of 2 (moderate) of higher required in at least 1 of the following; erythema, macerations, pruritus or odur.
  5. Score of at least 2 (moderate) required in at least one of the following: heel cracks (rhagades), calluses (hyperkeratosis) and dry feet using a 5-point severity scale (0=absent, 1=mild, 2=moderate, 3=advanced and 4=severe).
  6. Patient with confirmed mycological culture

Exclusion criteria

Exclusion Criteria:

Subjects meeting any of the following criteria will not be permitted to participate in the clinical investigation:

  1. Severe tinea pedis interdigitalis (Athlete's foot) total score of severity grading >16 (signs and symptoms)
  2. Women pregnant or lactation at time of enrolment
  3. Diagnosed with Diabetes Type I or II
  4. Topical medicinal antifungal therapy within 4 weeks prior to study start
  5. Treatment with systemic anti fungal therapy including terbinafine, itraconazole or fluconazole within 6 months prior to study start
  6. Treatment with local amd/or systemic or 's within 6 weeks prior to study start
  7. Any other open wounds/lesions in the area treated with the device
  8. Participated in another Clinical Investigation/Trial the last 3 months
  9. Any other medical condition, judged by the investigator may make follow-up or investigation inappropriate
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
25 participants (actual)

Study arms

  • Experimental
    Biocool Footcare

    Treatment regime: During week 1: Once daily for 7 days (7 doses) During week 2 and 3: Once every second day for 14 days (7 doses)

    Device: Biocool Footcare

Interventions

  • DeviceBiocool Footcare

    BioCool Footcare is a footbath containing granulate of sodium percarbonate that will in this study be used for treatment of foot fungus, heel cracks, calluses and/or dry feet.

06

What researchers measure

Primary outcomes

  1. Symptoms of foot fungus

    Effective treatment rate of the eight clinical signs and symptoms (erythema, erosions, macerations, pruritus, fissures, burning/stinging, hyperkeratosis and odour) using a 4-point severity scale (0=absent, 1=mild, 2=moderate and 3=severe)

    Time frame: Baseline to end of study (3 weeks)

Secondary outcomes

  1. Frequency of negative fungual culture in combination with negative KOH test

    Frequency of subjects with negative fungual culture in combination with negative KOH test

    Time frame: Baseline to end of study (3 weeks)

  2. Tolerability assessment to BioCool Footcare (foothbath)

    Tolerability assessed using a 5-point likert scale (very good, good, moderate, poor, very poor)

    Time frame: Baseline to end of study (3 weeks)

  3. Follow-up on heel cracks, calluses and/or dry feet

    Subject outcome on heel cracks (rhagades), calluses (hyperkeratosis) and/or dry feet using a 5-point scale (0=absent, 1=mild, 2=moderate, 3=advanced, 4=severe)

    Time frame: Baseline to end of study (3 weeks)

  4. Dermatology Quality of Life

    Dermatology Quality of Life Index

    Time frame: Baseline to end of study (3 weeks)

  5. Adverse Events

    Adverse Events (AE, ADE, SAE, SADE, USADE)

    Time frame: Baseline to end of study (3 weeks)

07

Study locations

2 sites
  • Forskningsenheten Carlanderska sjukhuset
    Göteborg, 40545, Sweden
  • Avdelningen för klinisk prövning
    Örebro, 70362, Sweden
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 15, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04265521
Lead sponsor
Biocool AB
Responsible party
Sponsor
First posted
Feb 11, 2020
Start date
Mar 3, 2020
Primary completion
May 26, 2020
Completion
Jun 25, 2020
Last update
Feb 15, 2021

Oversight

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

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This study is completed, as verified in Feb 2021. You cannot join it, but the record below documents what was studied.

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