Trial Outcomes & Findings for Pharmacokinetic Study of Pediatric Subjects With Tinea Cruris and Tinea Pedis (NCT NCT01712360)

NCT ID: NCT01712360

Last Updated: 2016-07-14

Results Overview

Variables will be derived from naftifine plasma concentration at day 1. Variables to be analyzed: \- Partial area under the plasma concentration-time curve (0-24 hours postdose) (AUC), as calculated using the linear trapezoid rule. Variables will be derived from naftifine plasma concentration at day 14. Variables to be analyzed: \- Area under the plasma concentration-time curve (AUC) within one dosing interval at steady state (SS). AUCτ,ss= Area under the concentration curve within a dosing interval (τ = 24 hours) at steady state

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

56 participants

Primary outcome timeframe

Day 1 and Day 14

Results posted on

2016-07-14

Participant Flow

Participant milestones

Participant milestones
Measure
NAFT500 (Pediatric)
Topical once a day for two weeks NAFT500 (pediatric): Applied to both feet and groin area
NAFT600 (Pediatric)
Topical once a day for two weeks NAFT600 (pediatric): Applied to both feet only
NAFT500 (Adult)
Topical once a day for two weeks NAFT500 (adult): Applied to both feet and groin area
NAFT600 (Adult)
Topical once a day for two weeks NAFT600 (adult): Applied to both feet
Overall Study
STARTED
22
22
6
6
Overall Study
COMPLETED
22
21
6
4
Overall Study
NOT COMPLETED
0
1
0
2

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Pharmacokinetic Study of Pediatric Subjects With Tinea Cruris and Tinea Pedis

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
NAFT500 (Pediatric)
n=22 Participants
Topical once a day for two weeks NAFT500 (pediatric): Applied to both feet and groin area
NAFT600 (Pediatric)
n=22 Participants
Topical once a day for two weeks NAFT600 (pediatric): Applied to both feet only
NAFT500 (Adult)
n=6 Participants
Topical once a day for two weeks NAFT500 (adult): Applied to both feet and groin area
NAFT600 (Adult)
n=6 Participants
Topical once a day for two weeks NAFT600 (adult): Applied to both feet
Total
n=56 Participants
Total of all reporting groups
Age, Categorical
<=18 years
22 Participants
n=93 Participants
22 Participants
n=4 Participants
0 Participants
n=27 Participants
0 Participants
n=483 Participants
44 Participants
n=36 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
n=93 Participants
0 Participants
n=4 Participants
6 Participants
n=27 Participants
6 Participants
n=483 Participants
12 Participants
n=36 Participants
Age, Categorical
>=65 years
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
0 Participants
n=483 Participants
0 Participants
n=36 Participants
Age, Continuous
14.8 years
STANDARD_DEVIATION 1.5 • n=93 Participants
14.7 years
STANDARD_DEVIATION 1.7 • n=4 Participants
38.7 years
STANDARD_DEVIATION 6.5 • n=27 Participants
31.7 years
STANDARD_DEVIATION 11.2 • n=483 Participants
19.1 years
STANDARD_DEVIATION 9.6 • n=36 Participants
Sex: Female, Male
Female
5 Participants
n=93 Participants
4 Participants
n=4 Participants
0 Participants
n=27 Participants
2 Participants
n=483 Participants
11 Participants
n=36 Participants
Sex: Female, Male
Male
17 Participants
n=93 Participants
18 Participants
n=4 Participants
6 Participants
n=27 Participants
4 Participants
n=483 Participants
45 Participants
n=36 Participants
Region of Enrollment
United States
0 participants
n=93 Participants
7 participants
n=4 Participants
6 participants
n=27 Participants
6 participants
n=483 Participants
19 participants
n=36 Participants
Region of Enrollment
Honduras
20 participants
n=93 Participants
0 participants
n=4 Participants
0 participants
n=27 Participants
0 participants
n=483 Participants
20 participants
n=36 Participants
Region of Enrollment
Dominican Republic
2 participants
n=93 Participants
15 participants
n=4 Participants
0 participants
n=27 Participants
0 participants
n=483 Participants
17 participants
n=36 Participants

PRIMARY outcome

Timeframe: Day 1 and Day 14

Population: Pharmacokinetic analysis set (PKS), defined as the subset of subjects in the safety evaluation set (SES) with evaluable pharmacokinetic (PK) samples.

Variables will be derived from naftifine plasma concentration at day 1. Variables to be analyzed: \- Partial area under the plasma concentration-time curve (0-24 hours postdose) (AUC), as calculated using the linear trapezoid rule. Variables will be derived from naftifine plasma concentration at day 14. Variables to be analyzed: \- Area under the plasma concentration-time curve (AUC) within one dosing interval at steady state (SS). AUCτ,ss= Area under the concentration curve within a dosing interval (τ = 24 hours) at steady state

Outcome measures

Outcome measures
Measure
NAFT500 (Pediatric)
n=20 Participants
Topical once a day for two weeks NAFT500 (pediatric): Applied to both feet and groin area
NAFT600 (Pediatric)
n=22 Participants
Topical once a day for two weeks NAFT600 (pediatric): Applied to both feet only
NAFT500 (Adult)
n=6 Participants
Topical once a day for two weeks NAFT500 (adult): Applied to both feet and groin area
NAFT600 (Adult)
n=5 Participants
Topical once a day for two weeks NAFT600 (adult): Applied to both feet
NAFT600 (Pediatric)
Topical once a day for two weeks NAFT600 (pediatric): Applied to both feet only
NAFT600 (Adult)
Topical once a day for two weeks NAFT600 (adult): Applied to both feet
Naftifine Hydrochloride Pharmacokinetics Variables, Single and Multiple Dose
AUC0-24 Day 1, Single Dose
138262.2 h*pg/mL
Geometric Coefficient of Variation 50.2
15890.1 h*pg/mL
Geometric Coefficient of Variation 211.6
68634.2 h*pg/mL
Geometric Coefficient of Variation 95.4
17213.9 h*pg/mL
Geometric Coefficient of Variation 88.1
Naftifine Hydrochloride Pharmacokinetics Variables, Single and Multiple Dose
AUCτ,ss Day 14 Multiple Dose
192485.4 h*pg/mL
Geometric Coefficient of Variation 74.9
60038.5 h*pg/mL
Geometric Coefficient of Variation 131.1
124596.0 h*pg/mL
Geometric Coefficient of Variation 49.9
72849.8 h*pg/mL
Geometric Coefficient of Variation 71.1

PRIMARY outcome

Timeframe: Day 1 and Day 14

Population: Pharmacokinetic analysis set (PKS), defined as the subset of subjects in safety evaluation set (SES) with evaluable pharmacokinetic (PK) samples.

Variables will be derived from naftifine plasma concentration at day 1. Variables to be analyzed: \- Maximum observed plasma concentration (Cmax): the highest plasma concentration in each subject after single dose. Variables will be derived from naftifine plasma concentration at day 14. Variables to be analyzed: \- Maximum observed plasma concentration (Cmax): the highest plasma concentration in each subject at steady state (SS).

Outcome measures

Outcome measures
Measure
NAFT500 (Pediatric)
n=20 Participants
Topical once a day for two weeks NAFT500 (pediatric): Applied to both feet and groin area
NAFT600 (Pediatric)
n=22 Participants
Topical once a day for two weeks NAFT600 (pediatric): Applied to both feet only
NAFT500 (Adult)
n=6 Participants
Topical once a day for two weeks NAFT500 (adult): Applied to both feet and groin area
NAFT600 (Adult)
n=5 Participants
Topical once a day for two weeks NAFT600 (adult): Applied to both feet
NAFT600 (Pediatric)
Topical once a day for two weeks NAFT600 (pediatric): Applied to both feet only
NAFT600 (Adult)
Topical once a day for two weeks NAFT600 (adult): Applied to both feet
Naftifine Hydrochloride Pharmacokinetics Variables, Single and Multiple Dose
Cmax Day 1, Single Dose
9213.35 pg/mL
Geometric Coefficient of Variation 48.4
1397.77 pg/mL
Geometric Coefficient of Variation 153.8
3983.34 pg/mL
Geometric Coefficient of Variation 83.0
1741.02 pg/mL
Geometric Coefficient of Variation 69.2
Naftifine Hydrochloride Pharmacokinetics Variables, Single and Multiple Dose
Cmax, SS Day 14 Multiple Dose
12727.36 pg/mL
Geometric Coefficient of Variation 67.2
3813.38 pg/mL
Geometric Coefficient of Variation 153.9
6826.70 pg/mL
Geometric Coefficient of Variation 51.3
3538.84 pg/mL
Geometric Coefficient of Variation 73.3

SECONDARY outcome

Timeframe: Day 28

Population: Full analysis set, defined as subset of subjects in the safety evaluation set (SES) for whom any efficacy variable is available.

Efficacy variables to be analyzed after 2 weeks of once daily application of both products (NAFT-500 or NAFT-600). Efficacy variables to be analyzed: * Complete cure * Treatment effectiveness * Mycological cure * Clinical success * Clinical cure

Outcome measures

Outcome measures
Measure
NAFT500 (Pediatric)
n=22 Participants
Topical once a day for two weeks NAFT500 (pediatric): Applied to both feet and groin area
NAFT600 (Pediatric)
n=6 Participants
Topical once a day for two weeks NAFT600 (pediatric): Applied to both feet only
NAFT500 (Adult)
n=22 Participants
Topical once a day for two weeks NAFT500 (adult): Applied to both feet and groin area
NAFT600 (Adult)
n=6 Participants
Topical once a day for two weeks NAFT600 (adult): Applied to both feet
NAFT600 (Pediatric)
n=22 Participants
Topical once a day for two weeks NAFT600 (pediatric): Applied to both feet only
NAFT600 (Adult)
n=5 Participants
Topical once a day for two weeks NAFT600 (adult): Applied to both feet
Efficacy Variables
Complete Cure
59.1 Percentage (%) of subjects (90% CI)
Interval 39.5 to 76.7
0 Percentage (%) of subjects (90% CI)
Interval 0.0 to 0.0
63.6 Percentage (%) of subjects (90% CI)
Interval 43.9 to 80.4
16.7 Percentage (%) of subjects (90% CI)
Interval 0.9 to 58.2
27.3 Percentage (%) of subjects (90% CI)
Interval 12.6 to 46.8
0 Percentage (%) of subjects (90% CI)
Interval 0.0 to 0.0
Efficacy Variables
Treatment Effectiveness
63.6 Percentage (%) of subjects (90% CI)
Interval 43.9 to 80.4
0 Percentage (%) of subjects (90% CI)
Interval 0.0 to 0.0
63.6 Percentage (%) of subjects (90% CI)
Interval 43.9 to 80.4
50.0 Percentage (%) of subjects (90% CI)
Interval 15.3 to 84.7
54.5 Percentage (%) of subjects (90% CI)
Interval 35.3 to 72.9
20.0 Percentage (%) of subjects (90% CI)
Interval 1.0 to 65.7
Efficacy Variables
Mycological Cure
68.2 Percentage (%) of subjects (90% CI)
Interval 48.5 to 84.0
16.7 Percentage (%) of subjects (90% CI)
Interval 0.9 to 58.2
72.7 Percentage (%) of subjects (90% CI)
Interval 53.2 to 87.4
66.7 Percentage (%) of subjects (90% CI)
Interval 27.1 to 93.7
63.6 Percentage (%) of subjects (90% CI)
Interval 43.9 to 80.4
20.0 Percentage (%) of subjects (90% CI)
Interval 1.0 to 65.7
Efficacy Variables
Clinical Success
90.9 Percentage (%) of subjects (90% CI)
Interval 74.1 to 98.4
66.7 Percentage (%) of subjects (90% CI)
Interval 27.1 to 93.7
90.9 Percentage (%) of subjects (90% CI)
Interval 74.1 to 98.4
66.7 Percentage (%) of subjects (90% CI)
Interval 27.1 to 93.7
81.8 Percentage (%) of subjects (90% CI)
Interval 63.1 to 93.5
80 Percentage (%) of subjects (90% CI)
Interval 34.3 to 99.0
Efficacy Variables
Clinical Cure
81.8 Percentage (%) of subjects (90% CI)
Interval 63.1 to 93.5
16.7 Percentage (%) of subjects (90% CI)
Interval 0.9 to 58.2
81.8 Percentage (%) of subjects (90% CI)
Interval 63.1 to 93.5
33.3 Percentage (%) of subjects (90% CI)
Interval 6.3 to 72.9
40.9 Percentage (%) of subjects (90% CI)
Interval 23.3 to 60.5
20.0 Percentage (%) of subjects (90% CI)
Interval 1.0 to 65.7

SECONDARY outcome

Timeframe: Day 28

Population: Full analysis set, defined as subset of subjects in the safety evaluation set (SES) for whom any efficacy variable is available.

Efficacy variables to be analyzed after 2 weeks of once daily application of both products (NAFT-500 or NAFT-600). Efficacy variables to be analyzed: \- Subject satisfaction

Outcome measures

Outcome measures
Measure
NAFT500 (Pediatric)
n=22 Participants
Topical once a day for two weeks NAFT500 (pediatric): Applied to both feet and groin area
NAFT600 (Pediatric)
n=6 Participants
Topical once a day for two weeks NAFT600 (pediatric): Applied to both feet only
NAFT500 (Adult)
n=22 Participants
Topical once a day for two weeks NAFT500 (adult): Applied to both feet and groin area
NAFT600 (Adult)
n=6 Participants
Topical once a day for two weeks NAFT600 (adult): Applied to both feet
NAFT600 (Pediatric)
n=22 Participants
Topical once a day for two weeks NAFT600 (pediatric): Applied to both feet only
NAFT600 (Adult)
n=5 Participants
Topical once a day for two weeks NAFT600 (adult): Applied to both feet
Efficacy Variables
Excellent Improvement
81.8 Percentage (%) of subjects
0 Percentage (%) of subjects
86.4 Percentage (%) of subjects
16.7 Percentage (%) of subjects
54.5 Percentage (%) of subjects
20.0 Percentage (%) of subjects
Efficacy Variables
Much Improved
13.6 Percentage (%) of subjects
83.3 Percentage (%) of subjects
13.6 Percentage (%) of subjects
50.0 Percentage (%) of subjects
36.4 Percentage (%) of subjects
60.0 Percentage (%) of subjects
Efficacy Variables
Improved
4.5 Percentage (%) of subjects
16.7 Percentage (%) of subjects
0 Percentage (%) of subjects
33.3 Percentage (%) of subjects
4.5 Percentage (%) of subjects
20.0 Percentage (%) of subjects
Efficacy Variables
No Change
0 Percentage (%) of subjects
0 Percentage (%) of subjects
0 Percentage (%) of subjects
0 Percentage (%) of subjects
0 Percentage (%) of subjects
0 Percentage (%) of subjects
Efficacy Variables
Worse
0 Percentage (%) of subjects
0 Percentage (%) of subjects
0 Percentage (%) of subjects
0 Percentage (%) of subjects
0 Percentage (%) of subjects
0 Percentage (%) of subjects

Adverse Events

NAFT500 (Pediatric)

Serious events: 0 serious events
Other events: 4 other events
Deaths: 0 deaths

NAFT600 (Pediatric)

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

NAFT500 (Adult)

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

NAFT600 (Adult)

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
NAFT500 (Pediatric)
n=22 participants at risk
Topical once a day for two weeks NAFT500 (pediatric): Applied to both feet and groin area
NAFT600 (Pediatric)
n=22 participants at risk
Topical once a day for two weeks NAFT600 (pediatric): Applied to both feet only
NAFT500 (Adult)
n=6 participants at risk
Topical once a day for two weeks NAFT500 (adult): Applied to both feet and groin area
NAFT600 (Adult)
n=6 participants at risk
Topical once a day for two weeks NAFT600 (adult): Applied to both feet
Infections and infestations
Pharyngitis
0.00%
0/22
4.5%
1/22 • Number of events 1
0.00%
0/6
0.00%
0/6
Investigations
Blood creatinine increased
0.00%
0/22
4.5%
1/22 • Number of events 1
0.00%
0/6
0.00%
0/6
Nervous system disorders
Headaches
0.00%
0/22
0.00%
0/22
0.00%
0/6
16.7%
1/6 • Number of events 1
Infections and infestations
Influenza
9.1%
2/22 • Number of events 2
0.00%
0/22
0.00%
0/6
0.00%
0/6
Infections and infestations
Tonsillitis
4.5%
1/22 • Number of events 1
0.00%
0/22
0.00%
0/6
0.00%
0/6
Renal and urinary disorders
Urinary tract infection
4.5%
1/22 • Number of events 1
0.00%
0/22
0.00%
0/6
0.00%
0/6

Additional Information

Ashlee Duncan

Merz North America, Inc.

Phone: 984-222-6040

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place