Trial Outcomes & Findings for Comparison of Pharmacokinetic Profiles of Two Nicotine Gum Formulations (NCT NCT01847443)

NCT ID: NCT01847443

Last Updated: 2014-04-11

Results Overview

AUC(0-t) for 2 mg test was compared with 2 mg reference gum

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

84 participants

Primary outcome timeframe

Blood samples to be collected from baseline to 12 hours post dose

Results posted on

2014-04-11

Participant Flow

Potential participants were recruited at a single site in the UK.

A total of 160 participants were screened for this study, of which 84 participants were randomized. Seventy seven participants completed the study.

Participant milestones

Participant milestones
Measure
2mg Mint Gum/4mg Ref Gum/4mg Mint Gum/2mg Ref Gum
Participants randomly received 2mg nicotine mint gum or 4mg reference (ref) nicotine gum or 4mg nicotine mint gum or 2mg ref nicotine gum once daily on Day 1 of treatment period 1. After a 2-7 day washout period, participants were returned to the next treatment period until all four treatment periods were completed.
4mg Ref Gum/2mg Ref Gum/2mg Mint Gum/4mg Mint Gum
Participants randomly received 4mg ref nicotine gum or 2mg ref nicotine gum or 2mg nicotine mint gum or 4mg nicotine mint gum once daily on Day 1 of treatment period 1. After a 2-7 day washout period, participants were returned to the next treatment period until all four treatment periods were completed.
2mg Ref Gum/4mg Mint Gum/4mg Ref Gum/2mg Mint Gum
Participants randomly received 2mg ref nicotine gum or 4mg nicotine mint gum or 4mg ref nicotine gum or 2mg nicotine mint gum once daily on Day 1 of treatment period 1. After a 2-7 day washout period, participants were returned to the next treatment period until all four treatment periods were completed.
4mg Mint Gum/2mg Mint Gum/2mg Ref Gum/4mg Ref Gum
Participants randomly received 4mg nicotine mint gum or 2mg nicotine mint gum or 2mg ref nicotine gum or 4mg ref nicotine gum once daily on Day 1 of treatment period 1. After a 2-7 day washout period, participants were returned to the next treatment period until all four treatment periods were completed.
Study Period 1
STARTED
21
21
21
21
Study Period 1
COMPLETED
21
20
21
21
Study Period 1
NOT COMPLETED
0
1
0
0
Washout Period Before Study Period 2
STARTED
21
20
21
21
Washout Period Before Study Period 2
COMPLETED
19
19
21
21
Washout Period Before Study Period 2
NOT COMPLETED
2
1
0
0
Study Period 2
STARTED
19
19
21
21
Study Period 2
COMPLETED
19
19
21
21
Study Period 2
NOT COMPLETED
0
0
0
0
Washout Period Before Study Period 3
STARTED
19
19
21
21
Washout Period Before Study Period 3
COMPLETED
18
19
21
21
Washout Period Before Study Period 3
NOT COMPLETED
1
0
0
0
Study Period 3
STARTED
18
19
21
21
Study Period 3
COMPLETED
18
19
21
21
Study Period 3
NOT COMPLETED
0
0
0
0
Washout Period Before Study Period 4
STARTED
18
19
21
21
Washout Period Before Study Period 4
COMPLETED
16
19
21
21
Washout Period Before Study Period 4
NOT COMPLETED
2
0
0
0
Study Period 4
STARTED
16
19
21
21
Study Period 4
COMPLETED
16
19
21
21
Study Period 4
NOT COMPLETED
0
0
0
0

Reasons for withdrawal

Reasons for withdrawal
Measure
2mg Mint Gum/4mg Ref Gum/4mg Mint Gum/2mg Ref Gum
Participants randomly received 2mg nicotine mint gum or 4mg reference (ref) nicotine gum or 4mg nicotine mint gum or 2mg ref nicotine gum once daily on Day 1 of treatment period 1. After a 2-7 day washout period, participants were returned to the next treatment period until all four treatment periods were completed.
4mg Ref Gum/2mg Ref Gum/2mg Mint Gum/4mg Mint Gum
Participants randomly received 4mg ref nicotine gum or 2mg ref nicotine gum or 2mg nicotine mint gum or 4mg nicotine mint gum once daily on Day 1 of treatment period 1. After a 2-7 day washout period, participants were returned to the next treatment period until all four treatment periods were completed.
2mg Ref Gum/4mg Mint Gum/4mg Ref Gum/2mg Mint Gum
Participants randomly received 2mg ref nicotine gum or 4mg nicotine mint gum or 4mg ref nicotine gum or 2mg nicotine mint gum once daily on Day 1 of treatment period 1. After a 2-7 day washout period, participants were returned to the next treatment period until all four treatment periods were completed.
4mg Mint Gum/2mg Mint Gum/2mg Ref Gum/4mg Ref Gum
Participants randomly received 4mg nicotine mint gum or 2mg nicotine mint gum or 2mg ref nicotine gum or 4mg ref nicotine gum once daily on Day 1 of treatment period 1. After a 2-7 day washout period, participants were returned to the next treatment period until all four treatment periods were completed.
Study Period 1
Withdrawal by Subject
0
1
0
0
Washout Period Before Study Period 2
Adverse Event
1
1
0
0
Washout Period Before Study Period 2
Other reason
1
0
0
0
Washout Period Before Study Period 3
Other reason
1
0
0
0
Washout Period Before Study Period 4
Withdrawal by Subject
1
0
0
0
Washout Period Before Study Period 4
Positive alcohol test
1
0
0
0

Baseline Characteristics

Comparison of Pharmacokinetic Profiles of Two Nicotine Gum Formulations

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Total Participants
n=84 Participants
Age, Continuous
26.8 Years
STANDARD_DEVIATION 6.4 • n=5 Participants
Sex: Female, Male
Female
40 Participants
n=5 Participants
Sex: Female, Male
Male
44 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Blood samples to be collected from baseline to 12 hours post dose

Population: Bioequivalence evaluable subjects' population: participants randomized to 1 of 4 treatment sequences; took atleast one dose of study medication (both test and reference) in 2 mg dose and/or in 4 mg doses; did not have any adverse event assimilated to vomiting in first 4 h post-treatment; and did not have baseline nicotine concentration \>5% of Cmax.

AUC(0-t) for 2 mg test was compared with 2 mg reference gum

Outcome measures

Outcome measures
Measure
Test Nicotine Gum (2 mg)
n=62 Participants
A single dose of Nicotine Mint Gum (2 mg) to be chewed.
Reference Nicotine Gum (2 mg)
n=62 Participants
A single dose of Reference Nicotine Gum (2 mg) to be chewed.
Test Nicotine Gum (4 mg)
A single dose of Nicotine Mint Gum (4 mg) to be chewed.
Reference Nicotine Gum (4 mg)
A single dose of Reference Nicotine Gum (4 mg) to be chewed.
Area Under the Curve From Time 0 to Time 't' [AUC(0-t)] of Nicotine 2 mg Test and Reference Product
11.49 hr*ng/mL
Standard Deviation 4.224
10.24 hr*ng/mL
Standard Deviation 3.768

PRIMARY outcome

Timeframe: Blood samples to be collected from baseline to 12 hours post dose

Population: Bioequivalence evaluable subjects' population: participants randomized to 1of 4 treatment sequences; took atleast one dose of study medication (both test and ref) in 2 mg dose and/or in 4 mg doses; did not have any AE assimilated to vomiting in first 4h post-treatment; and did not have baseline nicotine concentration \>5% of Cmax.

AUC(0-t) of Nicotine 4 mg test was compared with 4 mg reference gum

Outcome measures

Outcome measures
Measure
Test Nicotine Gum (2 mg)
n=73 Participants
A single dose of Nicotine Mint Gum (2 mg) to be chewed.
Reference Nicotine Gum (2 mg)
n=73 Participants
A single dose of Reference Nicotine Gum (2 mg) to be chewed.
Test Nicotine Gum (4 mg)
A single dose of Nicotine Mint Gum (4 mg) to be chewed.
Reference Nicotine Gum (4 mg)
A single dose of Reference Nicotine Gum (4 mg) to be chewed.
AUC(0-t) of Nicotine 4 mg Test and Reference Product
23.44 hr*ng/mL
Standard Deviation 7.593
21.50 hr*ng/mL
Standard Deviation 6.874

PRIMARY outcome

Timeframe: Blood samples to be collected from baseline to 12 hours post dose

Population: Bioequivalence evaluable subjects' population: participants randomized to 1 of 4 treatment sequences; took atleast one dose of study medication (both test and reference) in 2 mg dose and/or in 4 mg doses; did not have any adverse event assimilated to vomiting in first 4 h post-treatment; and did not have baseline nicotine concentration \>5% of Cmax.

Cmax for 2 mg test was compared with 2 mg reference gum

Outcome measures

Outcome measures
Measure
Test Nicotine Gum (2 mg)
n=62 Participants
A single dose of Nicotine Mint Gum (2 mg) to be chewed.
Reference Nicotine Gum (2 mg)
n=62 Participants
A single dose of Reference Nicotine Gum (2 mg) to be chewed.
Test Nicotine Gum (4 mg)
A single dose of Nicotine Mint Gum (4 mg) to be chewed.
Reference Nicotine Gum (4 mg)
A single dose of Reference Nicotine Gum (4 mg) to be chewed.
Maximum Observed Concentration (Cmax) of Nicotine 2 mg Test and Reference Product
3.93 ng/mL
Standard Deviation 1.232
3.72 ng/mL
Standard Deviation 1.289

PRIMARY outcome

Timeframe: Blood samples to be collected from baseline to 12 hours post-dose

Population: Bioequivalence evaluable subjects' population: participants randomized to 1 of 4 treatment sequences; took atleast one dose of study medication (both test and reference) in 2 mg dose and/or in 4 mg doses; did not have any adverse event assimilated to vomiting in first 4 h post-treatment; and did not have baseline nicotine concentration \>5% of Cmax.

Cmax for 4 mg test was compared with 4 mg reference gum

Outcome measures

Outcome measures
Measure
Test Nicotine Gum (2 mg)
n=73 Participants
A single dose of Nicotine Mint Gum (2 mg) to be chewed.
Reference Nicotine Gum (2 mg)
n=73 Participants
A single dose of Reference Nicotine Gum (2 mg) to be chewed.
Test Nicotine Gum (4 mg)
A single dose of Nicotine Mint Gum (4 mg) to be chewed.
Reference Nicotine Gum (4 mg)
A single dose of Reference Nicotine Gum (4 mg) to be chewed.
Cmax of Nicotine 4 mg Test and Reference Product
7.49 ng/mL
Standard Deviation 1.720
6.98 ng/mL
Standard Deviation 1.777

SECONDARY outcome

Timeframe: Blood samples to be collected from baseline to 12 hours post dose

Population: Bioequivalence evaluable subjects' population: participants randomized to 1 of 4 treatment sequences; took atleast one dose of study medication (both test and reference) in 2 mg dose and/or in 4 mg doses; did not have any adverse event assimilated to vomiting in first 4 h post-treatment; and did not have baseline nicotine concentration \>5% of Cmax.

Tmax for 2 mg test was compared with 2 mg reference gum, and 4 mg test was compared with 4 mg reference gum

Outcome measures

Outcome measures
Measure
Test Nicotine Gum (2 mg)
n=62 Participants
A single dose of Nicotine Mint Gum (2 mg) to be chewed.
Reference Nicotine Gum (2 mg)
n=62 Participants
A single dose of Reference Nicotine Gum (2 mg) to be chewed.
Test Nicotine Gum (4 mg)
n=73 Participants
A single dose of Nicotine Mint Gum (4 mg) to be chewed.
Reference Nicotine Gum (4 mg)
n=73 Participants
A single dose of Reference Nicotine Gum (4 mg) to be chewed.
Time to Maximum Observed Concentration (Tmax) of Nicotine 2 mg Test and Reference Products, and Nicotine 4 mg Test and Reference Products
0.75 hr
Interval 0.5 to 1.0
0.75 hr
Interval 0.5 to 1.5
0.75 hr
Interval 0.5 to 1.5
0.75 hr
Interval 0.2 to 2.0

SECONDARY outcome

Timeframe: Blood samples to be collected from baseline to 12 hours post dose

Population: Bioequivalence evaluable subjects' population: participants randomized to 1 of 4 treatment sequences; took atleast one dose of study medication (both test and reference) in 2 mg dose and/or in 4 mg doses; did not have any adverse event assimilated to vomiting in first 4 h post-treatment; and did not have baseline nicotine concentration \>5% of Cmax.

T1/2 of 2 mg test was compared with 2 mg reference gum, and 4 mg test was compared with 4 mg reference gum

Outcome measures

Outcome measures
Measure
Test Nicotine Gum (2 mg)
n=62 Participants
A single dose of Nicotine Mint Gum (2 mg) to be chewed.
Reference Nicotine Gum (2 mg)
n=62 Participants
A single dose of Reference Nicotine Gum (2 mg) to be chewed.
Test Nicotine Gum (4 mg)
n=73 Participants
A single dose of Nicotine Mint Gum (4 mg) to be chewed.
Reference Nicotine Gum (4 mg)
n=73 Participants
A single dose of Reference Nicotine Gum (4 mg) to be chewed.
Apparent Terminal Elimination Half-life (T1/2) of Nicotine 2 mg Test and Reference Products, and Nicotine 4 mg Test and Reference Products
2.12 hr
Interval 1.4 to 3.4
2.03 hr
Interval 1.2 to 4.2
2.01 hr
Interval 1.3 to 4.1
2.02 hr
Interval 1.3 to 3.4

SECONDARY outcome

Timeframe: Blood samples to be collected from baseline to 12 hours post dose

Population: Bioequivalence evaluable subjects' population: participants randomized to 1 of 4 treatment sequences; took atleast one dose of study medication (both test and reference) in 2 mg dose and/or in 4 mg doses; did not have any adverse event assimilated to vomiting in first 4 h post-treatment; and did not have baseline nicotine concentration \>5% of Cmax.

Kel for 2 mg test was compared with 2 mg reference gum, and 4 mg test was compared with 4 mg reference gum

Outcome measures

Outcome measures
Measure
Test Nicotine Gum (2 mg)
n=62 Participants
A single dose of Nicotine Mint Gum (2 mg) to be chewed.
Reference Nicotine Gum (2 mg)
n=62 Participants
A single dose of Reference Nicotine Gum (2 mg) to be chewed.
Test Nicotine Gum (4 mg)
n=73 Participants
A single dose of Nicotine Mint Gum (4 mg) to be chewed.
Reference Nicotine Gum (4 mg)
n=73 Participants
A single dose of Reference Nicotine Gum (4 mg) to be chewed.
Apparent Terminal Elimination Rate Constant (Kel) of Nicotine 2 mg Test and Reference Products, and Nicotine 4 mg Test and Reference Products
0.33 1/hr
Interval 0.2 to 0.5
0.34 1/hr
Interval 0.2 to 0.6
0.34 1/hr
Interval 0.2 to 0.5
0.34 1/hr
Interval 0.2 to 0.5

SECONDARY outcome

Timeframe: Blood samples to be collected from baseline to 12 hours post dose

Population: Bioequivalence evaluable subjects' population: participants randomized to 1 of 4 treatment sequences; took atleast one dose of study medication (both test and reference) in 2 mg dose and/or in 4 mg doses; did not have any adverse event assimilated to vomiting in first 4 h post-treatment; and did not have baseline nicotine concentration \>5% of Cmax.

AUC(0-∞) for 2mg test was compared with 2 mg reference gum, and 4 mg test was compared with 4 mg reference gum

Outcome measures

Outcome measures
Measure
Test Nicotine Gum (2 mg)
n=62 Participants
A single dose of Nicotine Mint Gum (2 mg) to be chewed.
Reference Nicotine Gum (2 mg)
n=62 Participants
A single dose of Reference Nicotine Gum (2 mg) to be chewed.
Test Nicotine Gum (4 mg)
n=73 Participants
A single dose of Nicotine Mint Gum (4 mg) to be chewed.
Reference Nicotine Gum (4 mg)
n=73 Participants
A single dose of Reference Nicotine Gum (4 mg) to be chewed.
Area Under Concentration-time Curve From Time 0 Extrapolated to ∞ [AUC(0-∞)] of Nicotine 2 mg Test and Reference Products, and Nicotine 4 mg Test and Reference Products
12.56 hr*ng/mL
Standard Deviation 4.409
11.20 hr*ng/mL
Standard Deviation 3.955
24.60 hr*ng/mL
Standard Deviation 7.845
22.64 hr*ng/mL
Standard Deviation 7.136

Adverse Events

Test Nicotine Gum (2 mg)

Serious events: 0 serious events
Other events: 11 other events
Deaths: 0 deaths

Reference Nicotine Gum (2 mg)

Serious events: 0 serious events
Other events: 12 other events
Deaths: 0 deaths

Test Nicotine Gum (4 mg)

Serious events: 0 serious events
Other events: 12 other events
Deaths: 0 deaths

Reference Nicotine Gum (4 mg)

Serious events: 0 serious events
Other events: 11 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Test Nicotine Gum (2 mg)
n=82 participants at risk
A single dose of Nicotine Mint Gum (2 mg) to be chewed.
Reference Nicotine Gum (2 mg)
n=77 participants at risk
A single dose of Reference Nicotine Gum (2 mg) to be chewed.
Test Nicotine Gum (4 mg)
n=79 participants at risk
A single dose of Nicotine Mint Gum (4 mg) to be chewed.
Reference Nicotine Gum (4 mg)
n=81 participants at risk
A single dose of Reference Nicotine Gum (4 mg) to be chewed.
Cardiac disorders
Tachycardia
0.00%
0/82
1.3%
1/77 • Number of events 1
0.00%
0/79
0.00%
0/81
Eye disorders
Eye irritation
0.00%
0/82
0.00%
0/77
1.3%
1/79 • Number of events 1
0.00%
0/81
Eye disorders
Eye pain
0.00%
0/82
0.00%
0/77
0.00%
0/79
1.2%
1/81 • Number of events 1
Gastrointestinal disorders
Abdominal pain
1.2%
1/82 • Number of events 1
0.00%
0/77
0.00%
0/79
2.5%
2/81 • Number of events 3
Gastrointestinal disorders
Abdominal pain upper
0.00%
0/82
0.00%
0/77
2.5%
2/79 • Number of events 2
1.2%
1/81 • Number of events 2
Gastrointestinal disorders
Chapped lips
0.00%
0/82
1.3%
1/77 • Number of events 1
0.00%
0/79
0.00%
0/81
Gastrointestinal disorders
Dry mouth
0.00%
0/82
1.3%
1/77 • Number of events 1
0.00%
0/79
0.00%
0/81
Gastrointestinal disorders
Dyspepsia
0.00%
0/82
0.00%
0/77
0.00%
0/79
1.2%
1/81 • Number of events 1
Gastrointestinal disorders
Flatulence
0.00%
0/82
0.00%
0/77
1.3%
1/79 • Number of events 1
0.00%
0/81
Gastrointestinal disorders
Gingival bleeding
1.2%
1/82 • Number of events 1
0.00%
0/77
0.00%
0/79
0.00%
0/81
Gastrointestinal disorders
Gingival pain
1.2%
1/82 • Number of events 1
0.00%
0/77
0.00%
0/79
0.00%
0/81
Gastrointestinal disorders
Lip blister
0.00%
0/82
0.00%
0/77
0.00%
0/79
1.2%
1/81 • Number of events 1
Gastrointestinal disorders
Mouth ulceration
1.2%
1/82 • Number of events 1
0.00%
0/77
0.00%
0/79
0.00%
0/81
Gastrointestinal disorders
Nausea
0.00%
0/82
2.6%
2/77 • Number of events 2
1.3%
1/79 • Number of events 1
1.2%
1/81 • Number of events 1
Gastrointestinal disorders
Toothache
1.2%
1/82 • Number of events 1
1.3%
1/77 • Number of events 1
0.00%
0/79
0.00%
0/81
Gastrointestinal disorders
Vomiting
0.00%
0/82
0.00%
0/77
1.3%
1/79 • Number of events 1
1.2%
1/81 • Number of events 1
General disorders
Catheter site erythema
0.00%
0/82
1.3%
1/77 • Number of events 1
0.00%
0/79
0.00%
0/81
General disorders
Catheter site related reaction
0.00%
0/82
0.00%
0/77
2.5%
2/79 • Number of events 2
0.00%
0/81
General disorders
Chest pain
0.00%
0/82
0.00%
0/77
0.00%
0/79
1.2%
1/81 • Number of events 1
General disorders
Fatigue
2.4%
2/82 • Number of events 2
0.00%
0/77
0.00%
0/79
1.2%
1/81 • Number of events 1
General disorders
Feeling hot
0.00%
0/82
0.00%
0/77
0.00%
0/79
1.2%
1/81 • Number of events 1
General disorders
Vessel puncture site anaesthesia
0.00%
0/82
0.00%
0/77
1.3%
1/79 • Number of events 2
0.00%
0/81
General disorders
Vessel puncture site pain
1.2%
1/82 • Number of events 1
1.3%
1/77 • Number of events 1
0.00%
0/79
0.00%
0/81
Infections and infestations
Pharyngitis
1.2%
1/82 • Number of events 2
0.00%
0/77
0.00%
0/79
0.00%
0/81
Nervous system disorders
Dysgeusia
0.00%
0/82
1.3%
1/77 • Number of events 1
0.00%
0/79
1.2%
1/81 • Number of events 1
Nervous system disorders
Headache
2.4%
2/82 • Number of events 3
5.2%
4/77 • Number of events 4
6.3%
5/79 • Number of events 5
1.2%
1/81 • Number of events 1
Nervous system disorders
Presyncope
0.00%
0/82
1.3%
1/77 • Number of events 1
1.3%
1/79 • Number of events 1
0.00%
0/81
Psychiatric disorders
Abnormal dreams
1.2%
1/82 • Number of events 1
0.00%
0/77
0.00%
0/79
0.00%
0/81
Psychiatric disorders
Depressed mood
0.00%
0/82
1.3%
1/77 • Number of events 1
0.00%
0/79
0.00%
0/81
Psychiatric disorders
Nervousness
0.00%
0/82
1.3%
1/77 • Number of events 1
0.00%
0/79
0.00%
0/81
Reproductive system and breast disorders
Dysmenorrhoea
1.2%
1/82 • Number of events 1
0.00%
0/77
0.00%
0/79
0.00%
0/81
Respiratory, thoracic and mediastinal disorders
Cough
0.00%
0/82
1.3%
1/77 • Number of events 1
0.00%
0/79
0.00%
0/81
Respiratory, thoracic and mediastinal disorders
Dyspnoea
0.00%
0/82
1.3%
1/77 • Number of events 1
0.00%
0/79
0.00%
0/81
Respiratory, thoracic and mediastinal disorders
Nasal congestion
1.2%
1/82 • Number of events 1
0.00%
0/77
0.00%
0/79
0.00%
0/81
Respiratory, thoracic and mediastinal disorders
Oropharyngeal pain
0.00%
0/82
0.00%
0/77
1.3%
1/79 • Number of events 1
0.00%
0/81
Respiratory, thoracic and mediastinal disorders
Sinus congestion
0.00%
0/82
0.00%
0/77
0.00%
0/79
1.2%
1/81 • Number of events 1
Respiratory, thoracic and mediastinal disorders
Throat irritation
0.00%
0/82
0.00%
0/77
1.3%
1/79 • Number of events 1
1.2%
1/81 • Number of events 1
Skin and subcutaneous tissue disorders
Dry skin
0.00%
0/82
0.00%
0/77
0.00%
0/79
1.2%
1/81 • Number of events 1
Skin and subcutaneous tissue disorders
Hyperhidrosis
1.2%
1/82 • Number of events 1
0.00%
0/77
0.00%
0/79
0.00%
0/81
Skin and subcutaneous tissue disorders
Rash
1.2%
1/82 • Number of events 1
0.00%
0/77
1.3%
1/79 • Number of events 1
0.00%
0/81
Vascular disorders
Hot flush
1.2%
1/82 • Number of events 1
0.00%
0/77
0.00%
0/79
1.2%
1/81 • Number of events 1

Additional Information

GSK Response Center

GlaxoSmithKline

Phone: 866-435-7343

Results disclosure agreements

  • Principal investigator is a sponsor employee GSK agreements may vary with individual investigators, but will not prohibit any investigator from publishing. GSK supports the publication of results from all centers of a multi-center trial but requests that reports based on single-site data not precede the primary publication of the entire clinical trial.
  • Publication restrictions are in place

Restriction type: OTHER