Trial Outcomes & Findings for Comparison of the Bioavailability of Diclofenac in a Combination Product (Diclofenac 2% + Capsaicin 0.075% Topical Gel) With Two Diclofenac Only Products, Diclofenac Mono Gel 2% and Voltarol® 12 Hour Emulgel 2.32% Gel, in Healthy Volunteers (NCT NCT03074162)

NCT ID: NCT03074162

Last Updated: 2019-03-01

Results Overview

AUC0-τ,ss, Area under the plasma concentration-time curve (AUC) over one dosing interval at steady state for diclofenac at day 7 (τ = 12 hours). Stratification by race was analysed using a supportive Analysis of Variance (ANOVA) yielding point estimates for each underlying pairwise comparison analog to the main analysis. As the resulting two Least Square Means and Geometric Means (gMeans) per treatment and race are very similar, only gMeans per treatment and race are presented.

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

48 participants

Primary outcome timeframe

Pharmacokinetic samples were collected on Day 7 at pre-dose and 0.5, 1, 2, 3, 4, 6, 8, 10 and 12 hours after the drug administration

Results posted on

2019-03-01

Participant Flow

This was an open-label, randomized, 3-treatment periods (each of which included a multiple-dose period of 7 days \[twice daily and only in the morning on Day 7\] and two pharmacokinetic profile periods of 12 hours \[Day 1\] and 24 hours \[Day 7\]) separated by a wash out period of at least 7 days.

All subjects were screened for eligibility to participate in the trial. Subjects attended the trial site and it was ensured that they met all strictly implemented inclusion/exclusion criteria. Subjects were not to be randomised to trial treatment if any one of the specific entry criteria were violated.

Participant milestones

Participant milestones
Measure
A-B-R
Test A: Diclofenac Mono Gel 2% (B151002900/EI4659); Test B: Combination of Diclofenac 2% + Capsaicin 0.075% Topical Gel (B151002897/EI4699); Reference: Voltarol® Emulgel 2.32% (B161000473/parental batch R03717A) Subjects were administered 2 grams of Diclofenac 2% immediate release topical mono gel in period 1, followed by period 2 with 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel and in period 3 with 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel, each treatment twice daily for multiple dose period of 6 days and only once in the morning on Day 7. All treatment periods were separated by a wash-out period of at least 7 days.
B-R-A
Test B: Combination of Diclofenac 2% + Capsaicin 0.075% Topical Gel (B151002897/EI4699); Reference: Voltarol® Emulgel 2.32% (B161000473/parental batch R03717A); Test A: Diclofenac Mono Gel 2% (B151002900/EI4659) Subjects were administered 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel in period 1, followed by period 2 with 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel and in period 3 with 2 grams of Diclofenac 2% immediate release topical mono gel, each treatment twice daily for multiple dose period of 6 days and only once in the morning on Day 7. All treatment periods were separated by a wash-out period of at least 7 days.
R-A-B
Reference: Voltarol® Emulgel 2.32% (B161000473/parental batch R03717A); Test A: Diclofenac Mono Gel 2% (B151002900/EI4659); Test B: Combination of Diclofenac 2% + Capsaicin 0.075% Topical Gel (B151002897/EI4699) Subjects were administered 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel in period 1, followed by period 2 with 2 grams of Diclofenac 2% immediate release topical mono gel and in period 3 with 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel, each treatment twice daily for multiple dose period of 6 days and only once in the morning on Day 7. All treatment periods were separated by a wash-out period of at least 7 days.
R-B-A
Reference: Voltarol® Emulgel 2.32% (B161000473/parental batch R03717A); Test B: Combination of Diclofenac 2% + Capsaicin 0.075% Topical Gel (B151002897/EI4699); Test A: Diclofenac Mono Gel 2% (B151002900/EI4659) Subjects were administered 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel in period 1, followed by period 2 with 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel and in period 3 with 2 grams of Diclofenac 2% immediate release topical mono gel, each treatment twice daily for multiple dose period of 6 days and only once in the morning on Day 7. All treatment periods were separated by a wash-out period of at least 7 days.
A-R-B
Test A: Diclofenac Mono Gel 2% (B151002900/EI4659); Reference: Voltarol® Emulgel 2.32% (B161000473/parental batch R03717A); Test B: Combination of Diclofenac 2% + Capsaicin 0.075% Topical Gel (B151002897/EI4699) Subjects were administered 2 grams of Diclofenac 2% immediate release topical mono gel in period 1, followed by period 2 with 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel and in period 3 with 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel, each treatment twice daily for multiple dose period of 6 days and only once in the morning on Day 7. All treatment periods were separated by a wash-out period of at least 7 days.
B-A-R
Test B: Combination of Diclofenac 2% + Capsaicin 0.075% Topical Gel (B151002897/EI4699); Test A: Diclofenac Mono Gel 2% (B151002900/EI4659); Reference: Voltarol® Emulgel 2.32% (B161000473/parental batch R03717A) Subjects were administered 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel in period 1, followed by period 2 with 2 grams of Diclofenac 2% immediate release topical mono gel and in period 3 with 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel, each treatment twice daily for multiple dose period of 6 days and only once in the morning on Day 7. All treatment periods were separated by a wash-out period of at least 7 days.
Period 1 Including Washout 1
STARTED
8
8
8
8
8
8
Period 1 Including Washout 1
COMPLETED
8
8
7
8
8
8
Period 1 Including Washout 1
NOT COMPLETED
0
0
1
0
0
0
Period 2 Including Washout 2
STARTED
8
8
7
8
8
8
Period 2 Including Washout 2
COMPLETED
8
8
6
8
8
7
Period 2 Including Washout 2
NOT COMPLETED
0
0
1
0
0
1
Period 3
STARTED
8
8
6
8
8
7
Period 3
COMPLETED
7
8
6
8
7
7
Period 3
NOT COMPLETED
1
0
0
0
1
0

Reasons for withdrawal

Reasons for withdrawal
Measure
A-B-R
Test A: Diclofenac Mono Gel 2% (B151002900/EI4659); Test B: Combination of Diclofenac 2% + Capsaicin 0.075% Topical Gel (B151002897/EI4699); Reference: Voltarol® Emulgel 2.32% (B161000473/parental batch R03717A) Subjects were administered 2 grams of Diclofenac 2% immediate release topical mono gel in period 1, followed by period 2 with 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel and in period 3 with 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel, each treatment twice daily for multiple dose period of 6 days and only once in the morning on Day 7. All treatment periods were separated by a wash-out period of at least 7 days.
B-R-A
Test B: Combination of Diclofenac 2% + Capsaicin 0.075% Topical Gel (B151002897/EI4699); Reference: Voltarol® Emulgel 2.32% (B161000473/parental batch R03717A); Test A: Diclofenac Mono Gel 2% (B151002900/EI4659) Subjects were administered 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel in period 1, followed by period 2 with 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel and in period 3 with 2 grams of Diclofenac 2% immediate release topical mono gel, each treatment twice daily for multiple dose period of 6 days and only once in the morning on Day 7. All treatment periods were separated by a wash-out period of at least 7 days.
R-A-B
Reference: Voltarol® Emulgel 2.32% (B161000473/parental batch R03717A); Test A: Diclofenac Mono Gel 2% (B151002900/EI4659); Test B: Combination of Diclofenac 2% + Capsaicin 0.075% Topical Gel (B151002897/EI4699) Subjects were administered 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel in period 1, followed by period 2 with 2 grams of Diclofenac 2% immediate release topical mono gel and in period 3 with 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel, each treatment twice daily for multiple dose period of 6 days and only once in the morning on Day 7. All treatment periods were separated by a wash-out period of at least 7 days.
R-B-A
Reference: Voltarol® Emulgel 2.32% (B161000473/parental batch R03717A); Test B: Combination of Diclofenac 2% + Capsaicin 0.075% Topical Gel (B151002897/EI4699); Test A: Diclofenac Mono Gel 2% (B151002900/EI4659) Subjects were administered 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel in period 1, followed by period 2 with 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel and in period 3 with 2 grams of Diclofenac 2% immediate release topical mono gel, each treatment twice daily for multiple dose period of 6 days and only once in the morning on Day 7. All treatment periods were separated by a wash-out period of at least 7 days.
A-R-B
Test A: Diclofenac Mono Gel 2% (B151002900/EI4659); Reference: Voltarol® Emulgel 2.32% (B161000473/parental batch R03717A); Test B: Combination of Diclofenac 2% + Capsaicin 0.075% Topical Gel (B151002897/EI4699) Subjects were administered 2 grams of Diclofenac 2% immediate release topical mono gel in period 1, followed by period 2 with 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel and in period 3 with 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel, each treatment twice daily for multiple dose period of 6 days and only once in the morning on Day 7. All treatment periods were separated by a wash-out period of at least 7 days.
B-A-R
Test B: Combination of Diclofenac 2% + Capsaicin 0.075% Topical Gel (B151002897/EI4699); Test A: Diclofenac Mono Gel 2% (B151002900/EI4659); Reference: Voltarol® Emulgel 2.32% (B161000473/parental batch R03717A) Subjects were administered 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel in period 1, followed by period 2 with 2 grams of Diclofenac 2% immediate release topical mono gel and in period 3 with 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel, each treatment twice daily for multiple dose period of 6 days and only once in the morning on Day 7. All treatment periods were separated by a wash-out period of at least 7 days.
Period 1 Including Washout 1
Withdrawal by Subject
0
0
1
0
0
0
Period 2 Including Washout 2
Withdrawal by Subject
0
0
1
0
0
1
Period 3
Withdrawal by Subject
1
0
0
0
1
0

Baseline Characteristics

Safety Population

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
A-B-R
n=8 Participants
Test A: Diclofenac Mono Gel 2% (B151002900/EI4659); Test B: Combination of Diclofenac 2% + Capsaicin 0.075% Topical Gel (B151002897/EI4699); Reference: Voltarol® Emulgel 2.32% (B161000473/parental batch R03717A) Subjects were administered 2 grams of Diclofenac 2% immediate release topical mono gel in period 1, followed by period 2 with 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel and in period 3 with 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel, each treatment twice daily for multiple dose period of 6 days and only once in the morning on Day 7. All treatment periods were separated by a wash-out period of at least 7 days.
B-R-A
n=8 Participants
Test B: Combination of Diclofenac 2% + Capsaicin 0.075% Topical Gel (B151002897/EI4699); Reference: Voltarol® Emulgel 2.32% (B161000473/parental batch R03717A); Test A: Diclofenac Mono Gel 2% (B151002900/EI4659) Subjects were administered 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel in period 1, followed by period 2 with 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel and in period 3 with 2 grams of Diclofenac 2% immediate release topical mono gel, each treatment twice daily for multiple dose period of 6 days and only once in the morning on Day 7. All treatment periods were separated by a wash-out period of at least 7 days.
R-A-B
n=8 Participants
Reference: Voltarol® Emulgel 2.32% (B161000473/parental batch R03717A); Test A: Diclofenac Mono Gel 2% (B151002900/EI4659); Test B: Combination of Diclofenac 2% + Capsaicin 0.075% Topical Gel (B151002897/EI4699) Subjects were administered 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel in period 1, followed by period 2 with 2 grams of Diclofenac 2% immediate release topical mono gel and in period 3 with 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel, each treatment twice daily for multiple dose period of 6 days and only once in the morning on Day 7. All treatment periods were separated by a wash-out period of at least 7 days.
R-B-A
n=8 Participants
Reference: Voltarol® Emulgel 2.32% (B161000473/parental batch R03717A); Test B: Combination of Diclofenac 2% + Capsaicin 0.075% Topical Gel (B151002897/EI4699); Test A: Diclofenac Mono Gel 2% (B151002900/EI4659) Subjects were administered 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel in period 1, followed by period 2 with 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel and in period 3 with 2 grams of Diclofenac 2% immediate release topical mono gel, each treatment twice daily for multiple dose period of 6 days and only once in the morning on Day 7. All treatment periods were separated by a wash-out period of at least 7 days.
A-R-B
n=8 Participants
Test A: Diclofenac Mono Gel 2% (B151002900/EI4659); Reference: Voltarol® Emulgel 2.32% (B161000473/parental batch R03717A); Test B: Combination of Diclofenac 2% + Capsaicin 0.075% Topical Gel (B151002897/EI4699) Subjects were administered 2 grams of Diclofenac 2% immediate release topical mono gel in period 1, followed by period 2 with 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel and in period 3 with 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel, each treatment twice daily for multiple dose period of 6 days and only once in the morning on Day 7. All treatment periods were separated by a wash-out period of at least 7 days.
B-A-R
n=8 Participants
Test B: Combination of Diclofenac 2% + Capsaicin 0.075% Topical Gel (B151002897/EI4699); Test A: Diclofenac Mono Gel 2% (B151002900/EI4659); Reference: Voltarol® Emulgel 2.32% (B161000473/parental batch R03717A) Subjects were administered 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel in period 1, followed by period 2 with 2 grams of Diclofenac 2% immediate release topical mono gel and in period 3 with 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel, each treatment twice daily for multiple dose period of 6 days and only once in the morning on Day 7. All treatment periods were separated by a wash-out period of at least 7 days.
Total
n=48 Participants
Total of all reporting groups
Age, Continuous
30.9 Years
STANDARD_DEVIATION 9.43 • n=39 Participants • Safety Population
29.4 Years
STANDARD_DEVIATION 10.04 • n=41 Participants • Safety Population
27.6 Years
STANDARD_DEVIATION 7.84 • n=35 Participants • Safety Population
28.5 Years
STANDARD_DEVIATION 8.82 • n=31 Participants • Safety Population
22.5 Years
STANDARD_DEVIATION 3.38 • n=146 Participants • Safety Population
26.0 Years
STANDARD_DEVIATION 8.16 • n=19 Participants • Safety Population
27.5 Years
STANDARD_DEVIATION 8.24 • n=147 Participants • Safety Population
Sex: Female, Male
Female
1 Participants
n=39 Participants • Safety Population
2 Participants
n=41 Participants • Safety Population
4 Participants
n=35 Participants • Safety Population
3 Participants
n=31 Participants • Safety Population
1 Participants
n=146 Participants • Safety Population
3 Participants
n=19 Participants • Safety Population
14 Participants
n=147 Participants • Safety Population
Sex: Female, Male
Male
7 Participants
n=39 Participants • Safety Population
6 Participants
n=41 Participants • Safety Population
4 Participants
n=35 Participants • Safety Population
5 Participants
n=31 Participants • Safety Population
7 Participants
n=146 Participants • Safety Population
5 Participants
n=19 Participants • Safety Population
34 Participants
n=147 Participants • Safety Population
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=39 Participants • Safety Population
0 Participants
n=41 Participants • Safety Population
0 Participants
n=35 Participants • Safety Population
0 Participants
n=31 Participants • Safety Population
0 Participants
n=146 Participants • Safety Population
0 Participants
n=19 Participants • Safety Population
0 Participants
n=147 Participants • Safety Population
Race (NIH/OMB)
Asian
0 Participants
n=39 Participants • Safety Population
0 Participants
n=41 Participants • Safety Population
0 Participants
n=35 Participants • Safety Population
0 Participants
n=31 Participants • Safety Population
0 Participants
n=146 Participants • Safety Population
0 Participants
n=19 Participants • Safety Population
0 Participants
n=147 Participants • Safety Population
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=39 Participants • Safety Population
0 Participants
n=41 Participants • Safety Population
0 Participants
n=35 Participants • Safety Population
0 Participants
n=31 Participants • Safety Population
0 Participants
n=146 Participants • Safety Population
0 Participants
n=19 Participants • Safety Population
0 Participants
n=147 Participants • Safety Population
Race (NIH/OMB)
Black or African American
4 Participants
n=39 Participants • Safety Population
4 Participants
n=41 Participants • Safety Population
4 Participants
n=35 Participants • Safety Population
4 Participants
n=31 Participants • Safety Population
4 Participants
n=146 Participants • Safety Population
4 Participants
n=19 Participants • Safety Population
24 Participants
n=147 Participants • Safety Population
Race (NIH/OMB)
White
4 Participants
n=39 Participants • Safety Population
4 Participants
n=41 Participants • Safety Population
4 Participants
n=35 Participants • Safety Population
4 Participants
n=31 Participants • Safety Population
4 Participants
n=146 Participants • Safety Population
4 Participants
n=19 Participants • Safety Population
24 Participants
n=147 Participants • Safety Population
Race (NIH/OMB)
More than one race
0 Participants
n=39 Participants • Safety Population
0 Participants
n=41 Participants • Safety Population
0 Participants
n=35 Participants • Safety Population
0 Participants
n=31 Participants • Safety Population
0 Participants
n=146 Participants • Safety Population
0 Participants
n=19 Participants • Safety Population
0 Participants
n=147 Participants • Safety Population
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=39 Participants • Safety Population
0 Participants
n=41 Participants • Safety Population
0 Participants
n=35 Participants • Safety Population
0 Participants
n=31 Participants • Safety Population
0 Participants
n=146 Participants • Safety Population
0 Participants
n=19 Participants • Safety Population
0 Participants
n=147 Participants • Safety Population

PRIMARY outcome

Timeframe: Pharmacokinetic samples were collected on Day 7 at pre-dose and 0.5, 1, 2, 3, 4, 6, 8, 10 and 12 hours after the drug administration

Population: Pharmacokinetic Population (PK): This population consists of all subjects in the safety population for whom at least one of area under the plasma concentration-time curve over one dosing interval or maximum steady-state plasma drug concentration during a dosage interval could be calculated for one treatment and who had no major protocol deviations.

AUC0-τ,ss, Area under the plasma concentration-time curve (AUC) over one dosing interval at steady state for diclofenac at day 7 (τ = 12 hours). Stratification by race was analysed using a supportive Analysis of Variance (ANOVA) yielding point estimates for each underlying pairwise comparison analog to the main analysis. As the resulting two Least Square Means and Geometric Means (gMeans) per treatment and race are very similar, only gMeans per treatment and race are presented.

Outcome measures

Outcome measures
Measure
Diclofenac 2% (A)
n=47 Participants
Subjects were administered 2 grams of Diclofenac 2% immediate release topical mono gel twice daily for 6 days and only once in the morning on Day 7.
Diclofenac 2% + Capsaicin 0.075% (B)
n=46 Participants
Subjects were administered 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel twice daily for 6 days and only once in the morning on Day 7.
Voltarol® 2.32% Gel (R)
n=47 Participants
Subjects were administered 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel twice daily for 6 days and only once in the morning on Day 7.
Area Under the Plasma Concentration-time Curve (AUC) Over One Dosing Interval for Diclofenac at Steady State (AUC0-τ,ss) (τ = 12 Hours) (Day 7)
Overall
46.855 Hour*nanogram/millilitre (h*ng/mL)
Geometric Coefficient of Variation 66.01
40.175 Hour*nanogram/millilitre (h*ng/mL)
Geometric Coefficient of Variation 59.38
83.644 Hour*nanogram/millilitre (h*ng/mL)
Geometric Coefficient of Variation 64.35
Area Under the Plasma Concentration-time Curve (AUC) Over One Dosing Interval for Diclofenac at Steady State (AUC0-τ,ss) (τ = 12 Hours) (Day 7)
By race: Black
60.930 Hour*nanogram/millilitre (h*ng/mL)
Geometric Coefficient of Variation 58.76
53.628 Hour*nanogram/millilitre (h*ng/mL)
Geometric Coefficient of Variation 47.37
105.670 Hour*nanogram/millilitre (h*ng/mL)
Geometric Coefficient of Variation 42.13
Area Under the Plasma Concentration-time Curve (AUC) Over One Dosing Interval for Diclofenac at Steady State (AUC0-τ,ss) (τ = 12 Hours) (Day 7)
By race: Caucasian
35.182 Hour*nanogram/millilitre (h*ng/mL)
Geometric Coefficient of Variation 57.46
29.704 Hour*nanogram/millilitre (h*ng/mL)
Geometric Coefficient of Variation 51.32
67.513 Hour*nanogram/millilitre (h*ng/mL)
Geometric Coefficient of Variation 73.15

PRIMARY outcome

Timeframe: Pharmacokinetic samples were collected on Day 7 at pre-dose and 0.5, 1, 2, 3, 4, 6, 8, 10 and 12 hours after the drug administration

Population: Pharmacokinetic Population (PK): This population consists of all subjects in the safety population for whom at least one of area under the plasma concentration-time curve over one dosing interval or maximum steady-state plasma drug concentration during a dosage interval could be calculated for one treatment and who had no major protocol deviations.

Cmax,ss, Maximum plasma of diclofenac concentration during a dosage interval obtained directly from the concentration-time data at steady state for diclofenac on day 7. Stratification by race was analysed using a supportive Analysis of Variance (ANOVA) yielding point estimates for each underlying pairwise comparison analog to the main analysis. As the resulting two Least Square Means and gMeans per treatment and race are very similar, only gMeans per treatment and race are presented.

Outcome measures

Outcome measures
Measure
Diclofenac 2% (A)
n=47 Participants
Subjects were administered 2 grams of Diclofenac 2% immediate release topical mono gel twice daily for 6 days and only once in the morning on Day 7.
Diclofenac 2% + Capsaicin 0.075% (B)
n=46 Participants
Subjects were administered 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel twice daily for 6 days and only once in the morning on Day 7.
Voltarol® 2.32% Gel (R)
n=47 Participants
Subjects were administered 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel twice daily for 6 days and only once in the morning on Day 7.
Maximum Plasma Concentration During a Dosage Interval (Cmax,ss) Obtained Directly From the Concentration-time Data for Diclofenac at Steady State (Day 7)
Overall
6.7825 Nanogram/millilitre (ng/mL)
Geometric Coefficient of Variation 100.12
5.6964 Nanogram/millilitre (ng/mL)
Geometric Coefficient of Variation 66.98
10.8330 Nanogram/millilitre (ng/mL)
Geometric Coefficient of Variation 70.99
Maximum Plasma Concentration During a Dosage Interval (Cmax,ss) Obtained Directly From the Concentration-time Data for Diclofenac at Steady State (Day 7)
By Race: Black
9.3923 Nanogram/millilitre (ng/mL)
Geometric Coefficient of Variation 63.72
7.3863 Nanogram/millilitre (ng/mL)
Geometric Coefficient of Variation 63.86
14.8040 Nanogram/millilitre (ng/mL)
Geometric Coefficient of Variation 49.82
Maximum Plasma Concentration During a Dosage Interval (Cmax,ss) Obtained Directly From the Concentration-time Data for Diclofenac at Steady State (Day 7)
By Race: Caucasian
4.7551 Nanogram/millilitre (ng/mL)
Geometric Coefficient of Variation 116.89
4.3416 Nanogram/millilitre (ng/mL)
Geometric Coefficient of Variation 55.32
8.1371 Nanogram/millilitre (ng/mL)
Geometric Coefficient of Variation 71.96

SECONDARY outcome

Timeframe: Pharmacokinetic samples were collected on Day 7 at pre-dose and 0.5, 1, 2, 3, 4, 6, 8, 10 and 12 hours after the drug administration

Population: Pharmacokinetic Population (PK): This population consists of all subjects in the safety population for whom at least one of area under the plasma concentration-time curve over one dosing interval or maximum steady-state plasma drug concentration during a dosage interval could be calculated for one treatment and who had no major protocol deviations.

tmax,ss, Time to maximum observed plasma concentration at steady state for diclofenac at day 7 (tmax,ss). Descriptive statistics by race are reported in addition.

Outcome measures

Outcome measures
Measure
Diclofenac 2% (A)
n=47 Participants
Subjects were administered 2 grams of Diclofenac 2% immediate release topical mono gel twice daily for 6 days and only once in the morning on Day 7.
Diclofenac 2% + Capsaicin 0.075% (B)
n=46 Participants
Subjects were administered 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel twice daily for 6 days and only once in the morning on Day 7.
Voltarol® 2.32% Gel (R)
n=47 Participants
Subjects were administered 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel twice daily for 6 days and only once in the morning on Day 7.
Time to Maximum Observed Plasma Concentration at Steady State for Diclofenac at Steady State (Tmax,ss) (Day 7)
Overall
0.75 Hour (h)
Interval 0.0 to 12.0
1.00 Hour (h)
Interval 0.0 to 12.0
0.00 Hour (h)
Interval 0.0 to 12.0
Time to Maximum Observed Plasma Concentration at Steady State for Diclofenac at Steady State (Tmax,ss) (Day 7)
By Race: Black
0.00 Hour (h)
Interval 0.0 to 10.0
0.50 Hour (h)
Interval 0.0 to 10.02
0.00 Hour (h)
Interval 0.0 to 8.0
Time to Maximum Observed Plasma Concentration at Steady State for Diclofenac at Steady State (Tmax,ss) (Day 7)
By Race: Caucasian
2.00 Hour (h)
Interval 0.0 to 12.0
3.50 Hour (h)
Interval 0.0 to 12.0
4.00 Hour (h)
Interval 0.0 to 12.0

SECONDARY outcome

Timeframe: Pharmacokinetic samples were collected on Day 7 at pre-dose and 0.5, 1, 2, 3, 4, 6, 8, 10 and 12 hours after the drug administration

Population: Pharmacokinetic Population (PK): This population consists of all subjects in the safety population for whom at least one of area under the plasma concentration-time curve over one dosing interval or maximum steady-state plasma drug concentration during a dosage interval could be calculated for one treatment and who had no major protocol deviations.

Average plasma concentration (Cav,ss) calculated as AUC0-t,ss divided by τ=12 hours (τ is the duration of the dosing interval). Descriptive statistics by race are reported in addition.

Outcome measures

Outcome measures
Measure
Diclofenac 2% (A)
n=46 Participants
Subjects were administered 2 grams of Diclofenac 2% immediate release topical mono gel twice daily for 6 days and only once in the morning on Day 7.
Diclofenac 2% + Capsaicin 0.075% (B)
n=46 Participants
Subjects were administered 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel twice daily for 6 days and only once in the morning on Day 7.
Voltarol® 2.32% Gel (R)
n=47 Participants
Subjects were administered 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel twice daily for 6 days and only once in the morning on Day 7.
Average Plasma Concentration (Cav,ss) for Diclofenac at Steady State
Overall
3.9046 nanogram/ millilitre (ng/mL)
Geometric Coefficient of Variation 66.02
3.3480 nanogram/ millilitre (ng/mL)
Geometric Coefficient of Variation 59.38
6.9702 nanogram/ millilitre (ng/mL)
Geometric Coefficient of Variation 64.34
Average Plasma Concentration (Cav,ss) for Diclofenac at Steady State
By Race: Black
5.0775 nanogram/ millilitre (ng/mL)
Geometric Coefficient of Variation 58.78
4.4691 nanogram/ millilitre (ng/mL)
Geometric Coefficient of Variation 47.37
8.8055 nanogram/ millilitre (ng/mL)
Geometric Coefficient of Variation 42.13
Average Plasma Concentration (Cav,ss) for Diclofenac at Steady State
By Race: Caucasian
2.9317 nanogram/ millilitre (ng/mL)
Geometric Coefficient of Variation 57.46
2.4754 nanogram/ millilitre (ng/mL)
Geometric Coefficient of Variation 51.32
5.6259 nanogram/ millilitre (ng/mL)
Geometric Coefficient of Variation 73.14

SECONDARY outcome

Timeframe: Pharmacokinetic samples were collected on Day 7 at pre-dose and 0.5, 1, 2, 3, 4, 6, 8, 10 and 12 hours after the drug administration

Population: Pharmacokinetic Population (PK): This population consists of all subjects in the safety population for whom at least one of area under the plasma concentration-time curve over one dosing interval or maximum steady-state plasma drug concentration during a dosage interval could be calculated for one treatment and who had no major protocol deviations.

Percentage peak-trough fluctuation (%PTF) which was calculated as \[100\*(Cmax,ss - Cpre,ss)/Cav,ss\] for Diclofenac. Descriptive statistics by race are reported in addition.

Outcome measures

Outcome measures
Measure
Diclofenac 2% (A)
n=47 Participants
Subjects were administered 2 grams of Diclofenac 2% immediate release topical mono gel twice daily for 6 days and only once in the morning on Day 7.
Diclofenac 2% + Capsaicin 0.075% (B)
n=46 Participants
Subjects were administered 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel twice daily for 6 days and only once in the morning on Day 7.
Voltarol® 2.32% Gel (R)
n=47 Participants
Subjects were administered 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel twice daily for 6 days and only once in the morning on Day 7.
Percentage Peak-trough Fluctuation (%PTF), Calculated as [100*(Cmax,ss - Cpre,ss)/Cav,ss]
Overall
33.95533 Percentage of Cav,ss (%)
Geometric Coefficient of Variation 354.42
26.69620 Percentage of Cav,ss (%)
Geometric Coefficient of Variation 267.21
24.75558 Percentage of Cav,ss (%)
Geometric Coefficient of Variation 103.66
Percentage Peak-trough Fluctuation (%PTF), Calculated as [100*(Cmax,ss - Cpre,ss)/Cav,ss]
By Race: Black
48.55712 Percentage of Cav,ss (%)
Geometric Coefficient of Variation 96.39
15.07128 Percentage of Cav,ss (%)
Geometric Coefficient of Variation 320.78
25.85257 Percentage of Cav,ss (%)
Geometric Coefficient of Variation 123.16
Percentage Peak-trough Fluctuation (%PTF), Calculated as [100*(Cmax,ss - Cpre,ss)/Cav,ss]
By Race: Caucasian
26.75129 Percentage of Cav,ss (%)
Geometric Coefficient of Variation 693.89
39.96865 Percentage of Cav,ss (%)
Geometric Coefficient of Variation 196.93
24.25970 Percentage of Cav,ss (%)
Geometric Coefficient of Variation 100.46

Adverse Events

Diclofenac 2% (A)

Serious events: 0 serious events
Other events: 9 other events
Deaths: 0 deaths

Diclofenac 2% + Capsaicin 0.075% (B)

Serious events: 0 serious events
Other events: 44 other events
Deaths: 0 deaths

Voltarol® 2.32% Gel (R)

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Diclofenac 2% (A)
n=47 participants at risk
Subjects were administered 2 grams of Diclofenac 2% immediate release topical mono gel twice daily for 6 days and only once in the morning on Day 7.
Diclofenac 2% + Capsaicin 0.075% (B)
n=46 participants at risk
Subjects were administered 2 grams of Combination of Diclofenac 2% and Capsaicin 0.075% immediate release topical gel twice daily for 6 days and only once in the morning on Day 7.
Voltarol® 2.32% Gel (R)
n=47 participants at risk
Subjects were administered 2 grams of Voltarol® Emulgel 2.32% Gel with 2.32% diclofenac topical gel twice daily for 6 days and only once in the morning on Day 7.
General disorders
Application site dryness
4.3%
2/47 • From first drug administration until individual subject's end of study, up to approximately 38 days.
Safety Population (All subjects who received at least one dose of study medication were included in the safety population) was used for safety analysis.
6.5%
3/46 • From first drug administration until individual subject's end of study, up to approximately 38 days.
Safety Population (All subjects who received at least one dose of study medication were included in the safety population) was used for safety analysis.
0.00%
0/47 • From first drug administration until individual subject's end of study, up to approximately 38 days.
Safety Population (All subjects who received at least one dose of study medication were included in the safety population) was used for safety analysis.
General disorders
Application site erythema
6.4%
3/47 • From first drug administration until individual subject's end of study, up to approximately 38 days.
Safety Population (All subjects who received at least one dose of study medication were included in the safety population) was used for safety analysis.
0.00%
0/46 • From first drug administration until individual subject's end of study, up to approximately 38 days.
Safety Population (All subjects who received at least one dose of study medication were included in the safety population) was used for safety analysis.
0.00%
0/47 • From first drug administration until individual subject's end of study, up to approximately 38 days.
Safety Population (All subjects who received at least one dose of study medication were included in the safety population) was used for safety analysis.
General disorders
Application site inflammation
4.3%
2/47 • From first drug administration until individual subject's end of study, up to approximately 38 days.
Safety Population (All subjects who received at least one dose of study medication were included in the safety population) was used for safety analysis.
95.7%
44/46 • From first drug administration until individual subject's end of study, up to approximately 38 days.
Safety Population (All subjects who received at least one dose of study medication were included in the safety population) was used for safety analysis.
0.00%
0/47 • From first drug administration until individual subject's end of study, up to approximately 38 days.
Safety Population (All subjects who received at least one dose of study medication were included in the safety population) was used for safety analysis.
General disorders
Application site pruritus
12.8%
6/47 • From first drug administration until individual subject's end of study, up to approximately 38 days.
Safety Population (All subjects who received at least one dose of study medication were included in the safety population) was used for safety analysis.
6.5%
3/46 • From first drug administration until individual subject's end of study, up to approximately 38 days.
Safety Population (All subjects who received at least one dose of study medication were included in the safety population) was used for safety analysis.
4.3%
2/47 • From first drug administration until individual subject's end of study, up to approximately 38 days.
Safety Population (All subjects who received at least one dose of study medication were included in the safety population) was used for safety analysis.
Infections and infestations
Viral upper respiratory tract infection
0.00%
0/47 • From first drug administration until individual subject's end of study, up to approximately 38 days.
Safety Population (All subjects who received at least one dose of study medication were included in the safety population) was used for safety analysis.
6.5%
3/46 • From first drug administration until individual subject's end of study, up to approximately 38 days.
Safety Population (All subjects who received at least one dose of study medication were included in the safety population) was used for safety analysis.
0.00%
0/47 • From first drug administration until individual subject's end of study, up to approximately 38 days.
Safety Population (All subjects who received at least one dose of study medication were included in the safety population) was used for safety analysis.
Nervous system disorders
Headache
0.00%
0/47 • From first drug administration until individual subject's end of study, up to approximately 38 days.
Safety Population (All subjects who received at least one dose of study medication were included in the safety population) was used for safety analysis.
0.00%
0/46 • From first drug administration until individual subject's end of study, up to approximately 38 days.
Safety Population (All subjects who received at least one dose of study medication were included in the safety population) was used for safety analysis.
6.4%
3/47 • From first drug administration until individual subject's end of study, up to approximately 38 days.
Safety Population (All subjects who received at least one dose of study medication were included in the safety population) was used for safety analysis.

Additional Information

Boehringer Ingelheim, Call Centre

Boehringer Ingelheim

Phone: 1-800-243-0127

Results disclosure agreements

  • Principal investigator is a sponsor employee Boehringer Ingelheim (BI) acknowledges that investigators have the right to publish the study results. Investigators shall provide BI with a copy of any publication or presentation for review prior to any submission. Such review will be done with regard to proprietary information, information related to patentable inventions, medical, scientific, and statistical accuracy within 60 days. BI may request a delay of the publication in order to protect BI's intellectual property rights.
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Restriction type: OTHER