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Trial · NCT00750139

Multicenter Study of the Safety and Efficacy of NAFT-500 in Tinea Pedis

NCT00750139, Phase 3, Completed, Merz North America, Inc.; results first posted 2013-01-29

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Multicenter Study of the Safety and Efficacy of NAFT-500 in Tinea Pedis. Trials, record NCT00750139. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT00750139

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Multicenter Study of the Safety and Efficacy of NAFT-500 in Tinea Pedis
NCT number
NCT00750139
Status
Completed
Phases
Phase 3
Enrollment
707 participants, actual
Lead sponsor
Merz North America, Inc.
Conditions
Tinea Pedis, Athlete's Foot
Interventions
NAFT-500, Placebo 2-weeks, Naftin 1%, Placebo 4-weeks
First posted
2008-09-10
Last updated
2013-04-26
Results first posted
2013-01-29

Source ClinicalTrials.gov

Registered outcomes2

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryPercentage of Subjects With Complete Cure at Week 6.Week 6
The first primary efficacy variable was the percentage of subjects in the NAFT-500 Cream, 2% or 2-week placebo groups with complete cure at Week 6. The second primary efficacy variable was the percentage of subjects in the Naftin 1% Cream or 4-week placebo groups with complete cure at Week 6. Complete cure was defined as negative mycology results from the central laboratory (dermatophyte culture and KOH) and absence of erythema, scaling, and pruritus that were evaluated using a 4 point severity scale.
SecondaryPercentage of Subjects With Mycological Cure and Percentage of Subjects With Treatment Effectiveness at Week 6Week 6
Mycological Cure was defined as negative KOH result and negative dermatophyte culture at Week 6. Treatment Effectiveness was defined as negative KOH, negative culture, and Scaling, Erythema, and Pruritus grades of 0 or 1 at Week 6.

Outcomes2

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYPercentage of Subjects With Complete Cure at Week 6.Week 6
This is based on the Full Analysis Set (FAS). The FAS is the subset of all subjects in the Safety Evaluation Set (SES) with a positive culture at baseline for whom the primary efficacy variable is available. This is a modified intent to treat (MITT) principle because the culture results will not be available before the start of treatment.
percentage of subjects with complete curNUMBER
SECONDARYPercentage of Subjects With Mycological Cure and Percentage of Subjects With Treatment Effectiveness at Week 6Week 6
This was the Full Analysis Set (FAS) comprising of subjects in the Safety Evaluation Set (SES) with a positive culture at baseline for whom the primary efficacy variable was available. This was a Modified Intent to Treat (MITT) principle because the culture results were not available at the start of treatment.
percentage of SubjectsNUMBER

Results by group12

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Percentage of Subjects With Complete Cure at Week 6.NAFT-50017.7percentage of subjects with complete cur
Percentage of Subjects With Complete Cure at Week 6.Placebo 2-weeks7.1percentage of subjects with complete cur
Percentage of Subjects With Complete Cure at Week 6.Naftin 1%16.1percentage of subjects with complete cur
Percentage of Subjects With Complete Cure at Week 6.Placebo 4-wks3.1percentage of subjects with complete cur
Percentage of Subjects With Mycological Cure and Percentage of Subjects With Treatment Effectiveness at Week 6NAFT-500Mycological Cure (MC)67.3percentage of Subjects
Percentage of Subjects With Mycological Cure and Percentage of Subjects With Treatment Effectiveness at Week 6Placebo 2-wksMycological Cure (MC)21.4percentage of Subjects
Percentage of Subjects With Mycological Cure and Percentage of Subjects With Treatment Effectiveness at Week 6Naftin 1%Mycological Cure (MC)71.3percentage of Subjects
Percentage of Subjects With Mycological Cure and Percentage of Subjects With Treatment Effectiveness at Week 6Placebo 4-wksMycological Cure (MC)21.5percentage of Subjects
Percentage of Subjects With Mycological Cure and Percentage of Subjects With Treatment Effectiveness at Week 6NAFT-500Treatment Effectiveness (TE)56.5percentage of Subjects
Percentage of Subjects With Mycological Cure and Percentage of Subjects With Treatment Effectiveness at Week 6Placebo 2-wksTreatment Effectiveness (TE)20.0percentage of Subjects

Participant flow12

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDNAFT-500234
Overall StudySTARTEDPlacebo 2-wks118
Overall StudySTARTEDNaftin 1%236
Overall StudySTARTEDPlacebo 4-wks119
Overall StudyCOMPLETEDNAFT-500145
Overall StudyCOMPLETEDPlacebo 2-wks59
Overall StudyCOMPLETEDNaftin 1%135
Overall StudyCOMPLETEDPlacebo 4-wks73
Overall StudyNOT COMPLETEDNAFT-50089
Overall StudyNOT COMPLETEDPlacebo 2-wks59

Adverse events48

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherHeadacheNervous system disordersNAFT-50010234
otherHeadacheNervous system disordersPlacebo 2-wks4118
otherHeadacheNervous system disordersNaftin 1%9236
otherHeadacheNervous system disordersPlacebo 4-wks3119
otherNasopharyngitisInfections and infestationsNAFT-5003234
otherNasopharyngitisInfections and infestationsPlacebo 2-wks2118
otherNasopharyngitisInfections and infestationsNaftin 1%5236
otherNasopharyngitisInfections and infestationsPlacebo 4-wks4119
otherApplication Site IrritationGeneral disordersNAFT-5004234
otherApplication Site IrritationGeneral disordersPlacebo 2-wks3118

Adverse event totals12

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityNAFT-500
Total, all-cause mortalityPlacebo 2-wks
Total, all-cause mortalityNaftin 1%
Total, all-cause mortalityPlacebo 4-wks
Total, other adverse eventsNAFT-50038234
Total, other adverse eventsPlacebo 2-wks22118
Total, other adverse eventsNaftin 1%31236
Total, other adverse eventsPlacebo 4-wks26119
Total, serious adverse eventsNAFT-5000234
Total, serious adverse eventsPlacebo 2-wks0118

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
22052309DERIVED

Source PubMed

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons0

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

None in this release.

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT00750139

GET https://conductscience.org/api/trials/v1/NCT00750139/events?page=2