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

Primary Purpose

Tinea Pedis, Athlete's Foot

Status
Completed
Phase
Phase 3
Locations
United States
Study Type
Interventional
Intervention
NAFT-500
Placebo 2-weeks
Naftin 1%
Placebo 4-weeks
Sponsored by
Merz North America, Inc.
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Tinea Pedis focused on measuring Tinea Pedis, Athlete's foot

Eligibility Criteria

12 Years - undefined (Child, Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  1. Review and sign a statement of Informed Consent and HIPAA authorization.
  2. For minors (less than 18 years), the parent/legal guardian must complete the informed consent process AND the subject must complete the assent process and sign the appropriate form (if age appropriate).
  3. Males or non-pregnant females ≥12 years of age, of any race or sex. Females of childbearing potential must have a negative urine pregnancy test.
  4. Presence of tinea pedis on one or both feet characterized by clinical evidence of a tinea infection (at least moderate erythema, moderate scaling, and mild pruritus)based on signs and symptoms.
  5. KOH positive and culture positive baseline skin scrapings obtained from the site most severely affected or a representative site of the overall severity.
  6. Subjects must be in good health and free from any clinically significant disease that might interfere with the study evaluations.
  7. Subject must be able to understand the requirements of the study and willing to comply with the study requirements.

Exclusion Criteria:

  1. A life-threatening condition (ex. autoimmune deficiency syndrome, cancer, unstable angina, or myocardial infarction) within the last 6 months.
  2. Subjects with abnormal findings - physical or laboratory - that are considered by the investigator to be clinically important and indicative of conditions that might complicate interpretation of study results.
  3. Subjects with a known hypersensitivity to study medications or their components.
  4. Subjects who have a recent history or who are currently known to abuse alcohol or drugs.
  5. Uncontrolled diabetes mellitus.
  6. Hemodialysis or chronic ambulatory peritoneal dialysis therapy.
  7. Current diagnosis of immunocompromising conditions.
  8. Foot psoriasis, corns and/or callus involving any web spaces, atopic or contact dermatitis.
  9. Severe dermatophytoses, onychomycosis (on the evaluated foot), mucocutaneous candidiasis, or bacterial skin infection.
  10. Extremely severe tinea pedis (incapacitating).
  11. Female subject who is pregnant or lactating, who is not using or does not agree to use an acceptable form of contraception during the study, or who intends to become pregnant during the study (females who are surgically sterilized or post menopausal for at least 2 years are not considered to be of childbearing potential).For the purposes of this study, acceptable forms of birth control include: oral contraceptives, contraceptive patches/implants, double barrier methods (e.g., use of condom and spermicide), IUD, and abstinence with second acceptable method should subject become sexually active.
  12. Subjects using the following medications:

    • Topical anti-fungal therapy, foot/shoe powders, or topical corticosteroids applied to the feet within 14 days prior to randomization. Topical terbinafine, butenafine,and naftifine within 30 days prior to randomization
    • Oral anti-fungal therapies 3 months (8 months for oral terbinafine) prior to randomization
    • Systemic antibiotic or corticosteroid treatment within 30 days of randomization
    • Any other significant treatments, except hormonal contraception and multivitamin, at the discretion of the investigator that would interfere with study treatment.
    • Investigational drug within 30 days of randomization

Sites / Locations

  • Radiant Research
  • Dr. Felix Sigal
  • University of California San Francisco, Dept of Dermatology
  • FXM Research
  • FXM Research
  • Glazer Dermatology
  • Tulane University Health Services
  • Silverton Skin Institute
  • Zoe Draelos, MD
  • Haber Dermatology
  • Oregon Dermatology and Research Center
  • Paddington Testing Company
  • Temple University School of Podiatric Medicine
  • Coastal Carolina Research Center
  • J & S Studies
  • Research Across America
  • Research Across America

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm Type

Experimental

Placebo Comparator

Active Comparator

Placebo Comparator

Arm Label

1

2

3

4

Arm Description

Naftin 2% cream applied daily for 2 weeks

Placebo cream applied daily for two weeks

Active comparator applied daily for 4 weeks

placebo cream applied daily for 4 weeks

Outcomes

Primary Outcome Measures

Percentage of Subjects With Complete Cure at 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.

Secondary Outcome Measures

Percentage of Subjects With Mycological Cure and Percentage of Subjects With Treatment Effectiveness at Week 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.

Full Information

First Posted
September 8, 2008
Last Updated
April 19, 2013
Sponsor
Merz North America, Inc.
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1. Study Identification

Unique Protocol Identification Number
NCT00750139
Brief Title
Multicenter Study of the Safety and Efficacy of NAFT-500 in Tinea Pedis
Official Title
A Phase 3 Double-Blind, Randomized, Placebo-Controlled, Multicenter, Parallel Group Evaluation of the Efficacy and Safety of NAFT-500 in Subjects With Tinea Pedis
Study Type
Interventional

2. Study Status

Record Verification Date
April 2013
Overall Recruitment Status
Completed
Study Start Date
August 2008 (undefined)
Primary Completion Date
August 2009 (Actual)
Study Completion Date
December 2009 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Merz North America, Inc.

4. Oversight

Data Monitoring Committee
No

5. Study Description

Brief Summary
A research study to compare the safety and effectiveness of an investigational medication called NAFT-500 to placebo, when used in subjects with tinea pedis (athlete's foot).
Detailed Description
To evaluate the efficacy and safety of NAFT-500 compared to placebo in the treatment of subjects with potassium hydroxide (KOH) and culture positive symptomatic tinea pedis.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Tinea Pedis, Athlete's Foot
Keywords
Tinea Pedis, Athlete's foot

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
707 (Actual)

8. Arms, Groups, and Interventions

Arm Title
1
Arm Type
Experimental
Arm Description
Naftin 2% cream applied daily for 2 weeks
Arm Title
2
Arm Type
Placebo Comparator
Arm Description
Placebo cream applied daily for two weeks
Arm Title
3
Arm Type
Active Comparator
Arm Description
Active comparator applied daily for 4 weeks
Arm Title
4
Arm Type
Placebo Comparator
Arm Description
placebo cream applied daily for 4 weeks
Intervention Type
Drug
Intervention Name(s)
NAFT-500
Intervention Description
topical cream 1 application every day up to 4 weeks weeks
Intervention Type
Drug
Intervention Name(s)
Placebo 2-weeks
Intervention Description
placebo cream 1 application every day for up to 4 weeks
Intervention Type
Drug
Intervention Name(s)
Naftin 1%
Intervention Description
topical allylamine cream applied once a day for up to 4 weeks
Intervention Type
Drug
Intervention Name(s)
Placebo 4-weeks
Intervention Description
topical placebo cream applied once a day for up to 4 weeks
Primary Outcome Measure Information:
Title
Percentage of Subjects With Complete Cure at Week 6.
Description
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.
Time Frame
Week 6
Secondary Outcome Measure Information:
Title
Percentage of Subjects With Mycological Cure and Percentage of Subjects With Treatment Effectiveness at Week 6
Description
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.
Time Frame
Week 6

10. Eligibility

Sex
All
Minimum Age & Unit of Time
12 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Review and sign a statement of Informed Consent and HIPAA authorization. For minors (less than 18 years), the parent/legal guardian must complete the informed consent process AND the subject must complete the assent process and sign the appropriate form (if age appropriate). Males or non-pregnant females ≥12 years of age, of any race or sex. Females of childbearing potential must have a negative urine pregnancy test. Presence of tinea pedis on one or both feet characterized by clinical evidence of a tinea infection (at least moderate erythema, moderate scaling, and mild pruritus)based on signs and symptoms. KOH positive and culture positive baseline skin scrapings obtained from the site most severely affected or a representative site of the overall severity. Subjects must be in good health and free from any clinically significant disease that might interfere with the study evaluations. Subject must be able to understand the requirements of the study and willing to comply with the study requirements. Exclusion Criteria: A life-threatening condition (ex. autoimmune deficiency syndrome, cancer, unstable angina, or myocardial infarction) within the last 6 months. Subjects with abnormal findings - physical or laboratory - that are considered by the investigator to be clinically important and indicative of conditions that might complicate interpretation of study results. Subjects with a known hypersensitivity to study medications or their components. Subjects who have a recent history or who are currently known to abuse alcohol or drugs. Uncontrolled diabetes mellitus. Hemodialysis or chronic ambulatory peritoneal dialysis therapy. Current diagnosis of immunocompromising conditions. Foot psoriasis, corns and/or callus involving any web spaces, atopic or contact dermatitis. Severe dermatophytoses, onychomycosis (on the evaluated foot), mucocutaneous candidiasis, or bacterial skin infection. Extremely severe tinea pedis (incapacitating). Female subject who is pregnant or lactating, who is not using or does not agree to use an acceptable form of contraception during the study, or who intends to become pregnant during the study (females who are surgically sterilized or post menopausal for at least 2 years are not considered to be of childbearing potential).For the purposes of this study, acceptable forms of birth control include: oral contraceptives, contraceptive patches/implants, double barrier methods (e.g., use of condom and spermicide), IUD, and abstinence with second acceptable method should subject become sexually active. Subjects using the following medications: Topical anti-fungal therapy, foot/shoe powders, or topical corticosteroids applied to the feet within 14 days prior to randomization. Topical terbinafine, butenafine,and naftifine within 30 days prior to randomization Oral anti-fungal therapies 3 months (8 months for oral terbinafine) prior to randomization Systemic antibiotic or corticosteroid treatment within 30 days of randomization Any other significant treatments, except hormonal contraception and multivitamin, at the discretion of the investigator that would interfere with study treatment. Investigational drug within 30 days of randomization
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Lawrence Parish, MD
Organizational Affiliation
Paddington Testing Company
Official's Role
Principal Investigator
Facility Information:
Facility Name
Radiant Research
City
Birmingham
State/Province
Alabama
ZIP/Postal Code
35209
Country
United States
Facility Name
Dr. Felix Sigal
City
Los Angeles
State/Province
California
ZIP/Postal Code
90010-3209
Country
United States
Facility Name
University of California San Francisco, Dept of Dermatology
City
San Francisco
State/Province
California
ZIP/Postal Code
94115
Country
United States
Facility Name
FXM Research
City
Miami
State/Province
Florida
ZIP/Postal Code
33175
Country
United States
Facility Name
FXM Research
City
Miramar
State/Province
Florida
ZIP/Postal Code
33027
Country
United States
Facility Name
Glazer Dermatology
City
Buffalo Grove
State/Province
Illinois
ZIP/Postal Code
60089
Country
United States
Facility Name
Tulane University Health Services
City
New Orleans
State/Province
Louisiana
ZIP/Postal Code
70112
Country
United States
Facility Name
Silverton Skin Institute
City
Grand Blanc
State/Province
Michigan
ZIP/Postal Code
48439
Country
United States
Facility Name
Zoe Draelos, MD
City
High Point
State/Province
North Carolina
ZIP/Postal Code
27262
Country
United States
Facility Name
Haber Dermatology
City
Euclid
State/Province
Ohio
ZIP/Postal Code
44118
Country
United States
Facility Name
Oregon Dermatology and Research Center
City
Portland
State/Province
Oregon
ZIP/Postal Code
97210
Country
United States
Facility Name
Paddington Testing Company
City
Philadelphia
State/Province
Pennsylvania
ZIP/Postal Code
19103
Country
United States
Facility Name
Temple University School of Podiatric Medicine
City
Philadelphia
State/Province
Pennsylvania
ZIP/Postal Code
19107
Country
United States
Facility Name
Coastal Carolina Research Center
City
Mt. Pleasant
State/Province
South Carolina
ZIP/Postal Code
29464
Country
United States
Facility Name
J & S Studies
City
College Station
State/Province
Texas
ZIP/Postal Code
77845
Country
United States
Facility Name
Research Across America
City
Dallas
State/Province
Texas
ZIP/Postal Code
75234
Country
United States
Facility Name
Research Across America
City
Plano
State/Province
Texas
ZIP/Postal Code
75093
Country
United States

12. IPD Sharing Statement

Citations:
PubMed Identifier
22052309
Citation
Parish LC, Parish JL, Routh HB, Fleischer AB Jr, Avakian EV, Plaum S, Hardas B. A randomized, double-blind, vehicle-controlled efficacy and safety study of naftifine 2% cream in the treatment of tinea pedis. J Drugs Dermatol. 2011 Nov;10(11):1282-8.
Results Reference
derived

Learn more about this trial

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

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