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CompletedNCT03320486Updated Jul 27, 2020

Non-inferiority Trial of Dapaconazole Versus Ketoconazole

A Phase 3 interventional study of Dapaconazole and Ketoconazole in Tinea Pedis, sponsored by Biolab Sanus Farmaceutica. Completed at 1 site in Brazil. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2020-07-27.

Sponsored by Biolab Sanus Farmaceutica · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
360
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The main purpose of this study is to demonstrate that dapaconazole cream 2% (experimental drug) is non-inferior to ketoconazole cream 2% (Nizoral® - active comparator) for the treatment of dermatological lesions of Tinea pedis, when applied to the skin (topically) once daily during 28 days. Additionally, the safety and tolerability aspects will be evaluated in a descriptive way, through the observation of the incidence of adverse events.

Read the detailed description

This is a non-inferiority, phase 3, multicenter, double-blind, randomized (allocation of treatment), balanced, controlled (active comparator) trial, with two parallel groups in a 1:1 proportion.

Randomization will depend on inclusion/exclusion criteria, taking into account the confirmation of diagnosis by the direct mycological test performed during the screening phase. However, cases whose diagnosis is not additionally confirmed by positive fungal culture (sampled during the screening phase) will be excluded from the efficacy analysis.

Participants will show up to the clinic, for treatment, during 42 consecutive days, when one of the investigational products (according to the randomization) will be applied by a blind member of the study staff. A non-blind member of the study staff will weigh the corresponding investigational product and pass on to the blind member only a spatula with the weighed product, in order to maintain the blinded aspect of the trial.

For exploratory purposes, clinical and mycological evaluations will also be performed after 7 and after 14 days of treatment.

Safety analysis will be performed considering all the randomized patients to which at least one dose of the investigational products has been applied, regardless of the result of the fungal culture.

Conclusion of non-inferiority will be based on the per protocol set. It will be deemed as per protocol those participants who do not miss more than 20% of the applications and, also, no more than four consecutive application days.

02

Conditions studied

  • Tinea Pedis

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Keywords

  • Mycoses
  • Dermatomycoses
  • Antifugal Agents
  • Dapaconazole
03

In context

Tinea Pedis

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

This study's enrollment of 360 is above the median of 128 across 66 interventional studies indexed under Tinea Pedis.

Browse Tinea Pedis studies →

Lead sponsor

Biolab Sanus Farmaceutica is the lead sponsor of 17 studies on the registry; 2 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 65 Years
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

  • Participants aged from 18 to 65 years old, male, or female with no or who are using an effective method and who do not plan to become pregnant during the study period.
  • Presence of dermatological lesion(s) of Tinea pedis, with a global clinical severity score ≥ 4, being a minimum score of 2 for itching or desquamation/maceration and a minimum score of 2 for erythema, having, also, the diagnosis confirmed by direct mycological (KOH) test.
  • No previous treatment with antimycotic medication, in the last 2 months, for the current dermatologic lesion.
  • No evidence of other significant diseases, that, at the investigator's discretion, may affect the participation in the clinical trial, in accordance with the protocol requirements.
  • Ability to understand the nature and the objective of the clinical trial, including the risks and possible side effects; intention to cooperate with the investigator and act in accordance with the protocol requirements, as confirmed by the form signature.

Exclusion criteria

Exclusion Criteria:

  • Existing hepatic and/or renal diseases or other pathologic findings, which might interfere with the safety and tolerability of the active ingredients.
  • Screening laboratory tests presenting deviations deemed as , which, due to possible risks, prevents the participation in clinical trial.
  • Known to ketoconazole or to chemically related compounds (azoles) or to the compounds of the products.
  • Participants with severe or multiple drugs allergies, unless judged by the investigator as not clinically relevant to the participation in the clinical trial.
  • Positive anti (anti-HIV) test, positive Surface Antigen (HBs-Ag) test or positive anti virus (anti-HCV) test.
  • Treatment, within 3 months prior to the start of the clinical trial treatment, with any drug known to have a well-established toxic potential to major organs.
  • Pregnant or lactating women
  • Participation in any clinical trial, or intake of any investigational product, within the last twelve months prior to the inclusion in the clinical trial.
  • Presence of onychomycosis.
  • Presence of "Moccasin type" Tinea pedis.
  • Presence of infected Tinea pedis, or any other infection or pathology that may confuse the treatment evaluation.
  • History of drug addiction.
  • Diseases that may alter the immune system and, consequently, the host's response to the fungal presence ( participants), as well as the use of systemic immunosuppressive drugs, chemotherapy or radiotherapy, during the 3 months prior to the start of treatment.
  • Use of drugs that may interfere with the assessment of the results, as well as use of topical immunosuppressants, topical antibiotics or topical , within 2 months prior to the start of treatment.
  • Use of antipruriginous drugs, including antihistaminics, within 72 hours prior to the start of treatment.
  • History of alcohol dependence and/or regular intake of alcoholic food or beverages containing ≥ 20 g of pure ethanol per day.
  • Any prior treatment for the present lesion which, at investigator discretion, may interfere with the objectives of the clinical trial.
  • Participants who might be non-compliant to the study treatment and/or to the requirements and procedures of the protocol.
  • Participants who are unable to understand written and verbal instructions, in particular those regarding the risks and inconveniences to which they will be exposed during the participation in the clinical trial.
Terms in these criteria, in plain language(11)

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.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

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.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

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.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

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.

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.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
360 participants (actual)

Study arms

  • Experimental
    Group 1 - dapaconazole cream 2%

    Topical application of dapaconazole cream 2%, once daily, during 42 days.

    Drug: Dapaconazole

  • Active comparator
    Group 2 - ketoconazole cream 2%

    Topical application of ketoconazole cream 2%, once daily, during 42 days.

    Drug: Ketoconazole

Interventions

  • Application of 1 to 3 grams, depending on the lesion extension, per affected foot.

    Also known as: Zilt

  • Application of 1 to 3 grams, depending on the lesion extension, per affected foot.

    Also known as: Nizoral®

06

What researchers measure

Primary outcomes

  1. Proportion of participants with therapeutic cure

    Proportion of participants, in each treatment group, who achieved therapeutic cure, defined as both clinical cure and mycological cure, on the assessment performed after 28 days of treatment. Clinical cure is defined as a score ≤ 2 for the sum of scores attributed to each sign or symptom (erythema, maceration/peeling, fissuring/cracking, itching and burning) as evaluated by a four-point categorical scale (0=absent, 1=mild, 2=moderate, 3=severe). Mycological cure is defined as negative result for the direct mycological examination (potassium hydroxide \[KOH\] test) and a negative fungal culture.

    Time frame: 28 days of treatment

Secondary outcomes

  1. Proportion of participants with therapeutic cure

    Proportion of participants, in each treatment group, who achieved therapeutic cure, on the assessment performed after 42 days of treatment.

    Time frame: 42 days of treatment

  2. Proportion of participants maintaining therapeutic cure

    Proportion of participants, in each treatment group, maintaining the therapeutic cure in the evaluation performed approximately 14 days after the end of the 42 days treatment period.

    Time frame: 14 (±3) days after the end of treatment

  3. Proportion of participants maintaining therapeutic cure

    Proportion of participants, in each treatment group, maintaining the therapeutic cure in the evaluation performed approximately 28 days after the end of the 42 days treatment period.

    Time frame: 28 (±5) days after the end of treatment

  4. Number of days until clinical cure

    Number of days elapsed between the day of start of treatment and the day when the clinical cure is diagnosed, according to the daily assessment, in each treatment group.

    Time frame: up to 42 days

  5. Number of adverse events per participant

    Number of adverse events, in each treatment group, including clinically relevant alterations of vital signs and laboratory tests.

    Time frame: up to 80 (±5) days

07

Study locations

1 site
  • Galeno Desenvolvimento de Pesquisas Clinicas Ltda. - ME
    Campinas, SP, Brazil
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Nov 2017 to primary completion in Aug 2019, 21 months.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 22, 2017
First posted
Oct 25, 2017
StartActual
Nov 1, 2017
Primary completionActual
Aug 27, 2019
CompletionActual
Nov 12, 2019
Last update
Jul 27, 2020
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jul 27, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03320486
Lead sponsor
Biolab Sanus Farmaceutica
Responsible party
Sponsor
First posted
Oct 25, 2017
Start date
Nov 1, 2017
Primary completion
Aug 27, 2019
Completion
Nov 12, 2019
Last update
Jul 27, 2020

Study contacts

Gilberto De Nucci, MD
principal investigator · Galeno Desenvolvimento de Pesquisas Clinicas Ltda. - ME

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 Jul 2020. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Dapaconazole

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