Trial Outcomes & Findings for Smoking Cessation Versus Long-term Nicotine Replacement Among High-risk Smokers (NCT NCT02148445)

NCT ID: NCT02148445

Last Updated: 2017-10-06

Results Overview

7-day point prevalent abstinence at 12 months, confirmed by exhaled CO \<=10

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

398 participants

Primary outcome timeframe

Month 12

Results posted on

2017-10-06

Participant Flow

667 Screened for Eligibility 153 Did not meet inclusion criteria 116 Refused to participate 398 Randomized

Participant milestones

Participant milestones
Measure
Standard Smoking Cessation
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Overall Study
STARTED
198
200
Overall Study
COMPLETED
197
197
Overall Study
NOT COMPLETED
1
3

Reasons for withdrawal

Reasons for withdrawal
Measure
Standard Smoking Cessation
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Overall Study
Death
1
3

Baseline Characteristics

Smoking Cessation Versus Long-term Nicotine Replacement Among High-risk Smokers

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Standard Smoking Cessation
n=198 Participants
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=200 Participants
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Total
n=398 Participants
Total of all reporting groups
Age, Continuous
56.3 years
STANDARD_DEVIATION 8.66 • n=5 Participants
55.7 years
STANDARD_DEVIATION 9.88 • n=7 Participants
55.9 years
STANDARD_DEVIATION 9.29 • n=5 Participants
Sex: Female, Male
Female
111 Participants
n=5 Participants
127 Participants
n=7 Participants
238 Participants
n=5 Participants
Sex: Female, Male
Male
87 Participants
n=5 Participants
73 Participants
n=7 Participants
160 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
8 Participants
n=5 Participants
5 Participants
n=7 Participants
13 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
190 Participants
n=5 Participants
195 Participants
n=7 Participants
385 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
3 Participants
n=5 Participants
0 Participants
n=7 Participants
3 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
47 Participants
n=5 Participants
35 Participants
n=7 Participants
82 Participants
n=5 Participants
Race (NIH/OMB)
White
113 Participants
n=5 Participants
123 Participants
n=7 Participants
236 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
35 Participants
n=5 Participants
42 Participants
n=7 Participants
77 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Region of Enrollment
United States
198 participants
n=5 Participants
200 participants
n=7 Participants
398 participants
n=5 Participants
Number of Quit Attempts in the Past 12 Months
2.2 number of quit attempts
STANDARD_DEVIATION 5.09 • n=5 Participants
1.9 number of quit attempts
STANDARD_DEVIATION 4.29 • n=7 Participants
2.1 number of quit attempts
STANDARD_DEVIATION 4.70 • n=5 Participants
Cigarettes Smoked per Day
22.1 cigarettes per day
STANDARD_DEVIATION 11.87 • n=5 Participants
24.0 cigarettes per day
STANDARD_DEVIATION 12.58 • n=7 Participants
23.0 cigarettes per day
STANDARD_DEVIATION 12.26 • n=5 Participants
Carbon Monoxide Exposure
22.2 parts per million
STANDARD_DEVIATION 13.12 • n=5 Participants
22.7 parts per million
STANDARD_DEVIATION 14.48 • n=7 Participants
22.5 parts per million
STANDARD_DEVIATION 13.81 • n=5 Participants
Carcinogen Exposure (Creatinine Adjusted NNAL)
451.3 pg/mg
STANDARD_DEVIATION 422.74 • n=5 Participants
507.4 pg/mg
STANDARD_DEVIATION 764.95 • n=7 Participants
475.0 pg/mg
STANDARD_DEVIATION 604.41 • n=5 Participants
Number of respiratory-related hospital admissions and ED visits in the past 12 months
0 Visits
122 Participants
n=5 Participants
134 Participants
n=7 Participants
256 Participants
n=5 Participants
Number of respiratory-related hospital admissions and ED visits in the past 12 months
1 Visit
30 Participants
n=5 Participants
36 Participants
n=7 Participants
66 Participants
n=5 Participants
Number of respiratory-related hospital admissions and ED visits in the past 12 months
2 or more Visits
46 Participants
n=5 Participants
30 Participants
n=7 Participants
76 Participants
n=5 Participants
Number of cardiac-related hospital admissions and ED visits in the past 12 months
0 Visits
178 Participants
n=5 Participants
171 Participants
n=7 Participants
349 Participants
n=5 Participants
Number of cardiac-related hospital admissions and ED visits in the past 12 months
1 Visit
7 Participants
n=5 Participants
17 Participants
n=7 Participants
24 Participants
n=5 Participants
Number of cardiac-related hospital admissions and ED visits in the past 12 months
2 or more Visits
13 Participants
n=5 Participants
12 Participants
n=7 Participants
25 Participants
n=5 Participants
Respiratory Symptoms
21.1 units on a scale
STANDARD_DEVIATION 8.82 • n=5 Participants
22.9 units on a scale
STANDARD_DEVIATION 8.32 • n=7 Participants
22.0 units on a scale
STANDARD_DEVIATION 9.00 • n=5 Participants
Respiratory Function
57.3 % of predicted
STANDARD_DEVIATION 18.61 • n=5 Participants
56.7 % of predicted
STANDARD_DEVIATION 21.03 • n=7 Participants
57.0 % of predicted
STANDARD_DEVIATION 19.84 • n=5 Participants
Cotinine
2395.8 ng/mg of creatinine
STANDARD_DEVIATION 2184.80 • n=5 Participants
2447.2 ng/mg of creatinine
STANDARD_DEVIATION 2433.58 • n=7 Participants
2421.6 ng/mg of creatinine
STANDARD_DEVIATION 2310.39 • n=5 Participants

PRIMARY outcome

Timeframe: Month 12

Population: n=4 deceased participants were excluded from analysis. Missing values were counted as smokers.

7-day point prevalent abstinence at 12 months, confirmed by exhaled CO \<=10

Outcome measures

Outcome measures
Measure
Standard Smoking Cessation
n=197 Participants
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=197 Participants
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Smoking Abstinence (Point Prevalent)
23 Participants
24 Participants

SECONDARY outcome

Timeframe: Month 6 through Month 12

Population: n=4 deceased participants were excluded from analysis. Missing values were counted as smokers.

6 month sustained abstinence as measured by self-report at 6 and 12 months and confirmed by CO at 6 and 12 months. Participants who were confirmed as non-smokers by carbon monoxide (CO) at both Month 6 and Month 12 were considered to have "6-month sustained abstinence."

Outcome measures

Outcome measures
Measure
Standard Smoking Cessation
n=197 Participants
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=197 Participants
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Sustained Abstinence
15 Participants
12 Participants

SECONDARY outcome

Timeframe: Month 3, Month 6, Month 12

Population: n=4 deceased participants were excluded from analysis.

Number of self-reported quit attempts over one year. At Month 3 and Month 6, participants reported the number of quit attempts in the last 3 months. At Month 12, participants reported the number of quit attempts in the last 6 months.

Outcome measures

Outcome measures
Measure
Standard Smoking Cessation
n=197 Participants
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=197 Participants
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Quit Attempts
Month 3
4.6 number of quit attempts
Standard Deviation 6.54
3.7 number of quit attempts
Standard Deviation 5.48
Quit Attempts
Month 6
4.5 number of quit attempts
Standard Deviation 6.86
4.8 number of quit attempts
Standard Deviation 8.97
Quit Attempts
Month 12
5.7 number of quit attempts
Standard Deviation 8.59
6.2 number of quit attempts
Standard Deviation 11.31

SECONDARY outcome

Timeframe: Month 3, Month 6, Month 12

Population: n=4 deceased participants excluded from analysis

Average number of cigarettes per day over one year. Participants were asked at Month 3, Month 6, and Month 12 "During the past 7 days, on those days that you smoked, what was the average number of cigarettes or little cigars smoked per day?"

Outcome measures

Outcome measures
Measure
Standard Smoking Cessation
n=197 Participants
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=197 Participants
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Average Cigarettes Per Day
Month 3
7.9 cigarettes per day
Standard Deviation 8.64
10.5 cigarettes per day
Standard Deviation 8.64
Average Cigarettes Per Day
Month 6
8.1 cigarettes per day
Standard Deviation 8.52
9.1 cigarettes per day
Standard Deviation 9.45
Average Cigarettes Per Day
Month 12
8.5 cigarettes per day
Standard Deviation 7.84
8.1 cigarettes per day
Standard Deviation 8.33

SECONDARY outcome

Timeframe: Month 3, Month 6, Month 12

Population: n=4 deceased participants excluded from analysis

Carbon monoxide (CO) exposure over 12 months. At Month 3, Month 6, and Month 12, participants completed an expired carbon monoxide laboratory test, which measured CO in parts per million.

Outcome measures

Outcome measures
Measure
Standard Smoking Cessation
n=197 Participants
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=197 Participants
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Carbon Monoxide Exposure
Month 3
15.0 parts per million (ppm)
Standard Deviation 12.62
17.4 parts per million (ppm)
Standard Deviation 13.69
Carbon Monoxide Exposure
Month 6
14.6 parts per million (ppm)
Standard Deviation 11.85
15.4 parts per million (ppm)
Standard Deviation 12.58
Carbon Monoxide Exposure
Month 12
15.5 parts per million (ppm)
Standard Deviation 11.14
13.8 parts per million (ppm)
Standard Deviation 11.14

SECONDARY outcome

Timeframe: Month 3, Month 6, Month 12

Population: n=4 deceased participants were excluded from analysis.

Creatinine-adjusted NNAL (4-(methylnitrosamino)-1-(3)pyridyl-1-butanol)) exposure over 12 months. At Month 3, Month 6, and Month 12, participants provided a urine sample that was used to assess their level of urinary creatinine and NNAL.

Outcome measures

Outcome measures
Measure
Standard Smoking Cessation
n=197 Participants
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=197 Participants
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Carcinogen Exposure
Month 6
178.2 pg/mg creatinine
Standard Deviation 221.26
186.0 pg/mg creatinine
Standard Deviation 236.21
Carcinogen Exposure
Month 12
190.4 pg/mg creatinine
Standard Deviation 233.22
183.5 pg/mg creatinine
Standard Deviation 223.94
Carcinogen Exposure
Month 3
279.0 pg/mg creatinine
Standard Deviation 353.42
320.1 pg/mg creatinine
Standard Deviation 350.59

SECONDARY outcome

Timeframe: Month 12

Population: n=4 deceased participants excluded from analysis. Participants with missing data excluded.

Change in respiratory function, as measured by spirometry (FEV1), at 12 months post-randomization.

Outcome measures

Outcome measures
Measure
Standard Smoking Cessation
n=175 Participants
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=175 Participants
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Respiratory Function
55.4 % of predicted
Standard Deviation 19.25
56.8 % of predicted
Standard Deviation 19.78

SECONDARY outcome

Timeframe: Month 3, Month 6, Month 12

Population: n=4 deceased participants excluded from analysis

Respiratory symptoms as measured by the COPD Assessment Test (CAT) respiratory questionnaire. Participants completed this 8-item assessment at Month 3, Month 6, and Month 12. Scores range from 0 to 40, with higher levels indicating higher impact of COPD on well-being and daily life.

Outcome measures

Outcome measures
Measure
Standard Smoking Cessation
n=197 Participants
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=197 Participants
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Respiratory Symptoms
Month 3
17.8 units on a scale
Standard Deviation 9.25
19.3 units on a scale
Standard Deviation 8.68
Respiratory Symptoms
Month 6
17.9 units on a scale
Standard Deviation 9.48
18.1 units on a scale
Standard Deviation 8.51
Respiratory Symptoms
Month 12
17.5 units on a scale
Standard Deviation 9.33
18.2 units on a scale
Standard Deviation 9.37

SECONDARY outcome

Timeframe: Month 3, Month 6, Month 12

Population: n=4 deceased participants excluded from analysis

Number of respiratory-related hospital admissions and emergency room visits. Participants were asked how many times they had visited the ED or were admitted to the hospital for respiratory-related problems at Month 3, Month 6, and Month 12

Outcome measures

Outcome measures
Measure
Standard Smoking Cessation
n=197 Participants
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=197 Participants
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Respiratory-related Hospital Visits
Month 3 · 0 Visits
176 Participants
169 Participants
Respiratory-related Hospital Visits
Month 3 · 1 Visit
11 Participants
15 Participants
Respiratory-related Hospital Visits
Month 3 · 2 or more Visits
2 Participants
7 Participants
Respiratory-related Hospital Visits
Month 6 · 0 Visits
152 Participants
154 Participants
Respiratory-related Hospital Visits
Month 6 · 1 Visit
22 Participants
24 Participants
Respiratory-related Hospital Visits
Month 6 · 2 or more Visits
7 Participants
7 Participants
Respiratory-related Hospital Visits
Month 12 · 0 Visits
157 Participants
153 Participants
Respiratory-related Hospital Visits
Month 12 · 1 Visit
18 Participants
20 Participants
Respiratory-related Hospital Visits
Month 12 · 2 or more Visits
10 Participants
10 Participants

SECONDARY outcome

Timeframe: Month 3, Month 6, Month 12

Population: n=4 deceased participants excluded from analysis

Number of cardiac-related hospital admissions and emergency room visits. Participants were asked how many times they had visited the ED or were admitted to the hospital for cardiac-related problems at Month 3, Month 6, and Month 12.

Outcome measures

Outcome measures
Measure
Standard Smoking Cessation
n=197 Participants
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=197 Participants
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Cardiac-related Hospital Visits
Month 3 · 1 Visit
7 Participants
6 Participants
Cardiac-related Hospital Visits
Month 3 · 2 or more Visits
1 Participants
0 Participants
Cardiac-related Hospital Visits
Month 3 · 0 Visits
181 Participants
185 Participants
Cardiac-related Hospital Visits
Month 6 · 0 Visits
171 Participants
180 Participants
Cardiac-related Hospital Visits
Month 6 · 1 Visit
10 Participants
4 Participants
Cardiac-related Hospital Visits
Month 6 · 2 or more Visits
0 Participants
1 Participants
Cardiac-related Hospital Visits
Month 12 · 0 Visits
175 Participants
167 Participants
Cardiac-related Hospital Visits
Month 12 · 1 Visit
8 Participants
12 Participants
Cardiac-related Hospital Visits
Month 12 · 2 or more Visits
2 Participants
3 Participants

SECONDARY outcome

Timeframe: Month 3, Month 6, Month 12

Population: n=4 deceased participants were excluded from analysis. Missing responses were coded as smokers.

Self-reported and biochemically verified 7-day abstinence. Participants were asked at Month 3, Month 6, and Month 12, "Have you smoked any cigarettes or little cigars, even a puff, in the past 7 days?" They also completed an exhaled carbon monoxide lab test at Month 3, 6 and 12. Biochemical verification= exhaled CO \<=10 ppm. Month 12 biochemically verified abstinence is the primary outcome, and is not reported in this table.

Outcome measures

Outcome measures
Measure
Standard Smoking Cessation
n=197 Participants
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=197 Participants
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
7-day Abstinence
Month 12, self-report
25 Participants
28 Participants
7-day Abstinence
Month 3, self-report
27 Participants
16 Participants
7-day Abstinence
Month 3, biochemically verified
25 Participants
14 Participants
7-day Abstinence
Month 6, self-report
28 Participants
20 Participants
7-day Abstinence
Month 6, biochemically verified
25 Participants
19 Participants

SECONDARY outcome

Timeframe: Month 3, Month 6, Month 12

Population: n=4 deceased participants were excluded from analysis

Cotinine over 12 months, adjusted for creatinine. At Month 3, Month 6, and Month 12, participants provided a urine sample that was used to assess their level of urinary creatinine and cotinine.

Outcome measures

Outcome measures
Measure
Standard Smoking Cessation
n=197 Participants
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=197 Participants
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Cotinine
Month 3
2652.5 ng/mg creatinine
Standard Deviation 2675.18
3378.1 ng/mg creatinine
Standard Deviation 3182.00
Cotinine
Month 6
2390.7 ng/mg creatinine
Standard Deviation 2842.07
3342.3 ng/mg creatinine
Standard Deviation 3282.48
Cotinine
Month 12
2159.0 ng/mg creatinine
Standard Deviation 2989.46
2363.7 ng/mg creatinine
Standard Deviation 2988.16

SECONDARY outcome

Timeframe: Month 3, Month 6, Month 12

Population: n=4 deceased participants excluded from analysis, non-smokers at each time point excluded

Average number of cigarettes per day over one year, among continued smokers. All participants were asked "During the past 7 days, on those days that you smoked, what was the average number of cigarettes smoked per day?" at Month 3, Month 6, and Month 12. This analysis looks at the number of cigarettes per day among participants who were still smoking.

Outcome measures

Outcome measures
Measure
Standard Smoking Cessation
n=197 Participants
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=197 Participants
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Average Cigarettes Per Day (Continued Smokers Only)
Month 3
8.7 cigarettes per day
Standard Deviation 8.84
11.4 cigarettes per day
Standard Deviation 8.53
Average Cigarettes Per Day (Continued Smokers Only)
Month 6
9.1 cigarettes per day
Standard Deviation 8.62
9.9 cigarettes per day
Standard Deviation 9.52
Average Cigarettes Per Day (Continued Smokers Only)
Month 12
9.7 cigarettes per day
Standard Deviation 7.64
9.3 cigarettes per day
Standard Deviation 8.27

SECONDARY outcome

Timeframe: Month 3, Month 6, Month 12

Population: n=4 deceased participants excluded from analysis, non-smokers at each time point excluded

Carbon monoxide (CO) exposure over 12 months. At Month 3, Month 6, and Month 12, participants completed an expired carbon monoxide laboratory test, which measured CO in parts per million. This analysis looks at CO among those continuing to smoke.

Outcome measures

Outcome measures
Measure
Standard Smoking Cessation
n=197 Participants
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=197 Participants
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Carbon Monoxide Exposure (Continued Smokers Only)
Month 3
16.4 parts per million (ppm)
Standard Deviation 12.56
18.8 parts per million (ppm)
Standard Deviation 13.23
Carbon Monoxide Exposure (Continued Smokers Only)
Month 6
16.0 parts per million (ppm)
Standard Deviation 11.68
17.0 parts per million (ppm)
Standard Deviation 12.49
Carbon Monoxide Exposure (Continued Smokers Only)
Month 12
17.4 parts per million (ppm)
Standard Deviation 10.57
15.8 parts per million (ppm)
Standard Deviation 10.73

SECONDARY outcome

Timeframe: Month 3, Month 6, Month 12

Population: n=4 deceased participants were excluded from analysis, non-smokers at each time point excluded

Creatinine-adjusted NNAL (4-(methylnitrosamino)-1-(3)pyridyl-1-butanol)) exposure over 12 months. At Month 3, Month 6, and Month 12, participants provided a urine sample that was used to assess their level of urinary creatinine and NNAL. This analysis looks at NNAL among continuing smokers only.

Outcome measures

Outcome measures
Measure
Standard Smoking Cessation
n=197 Participants
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=197 Participants
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Carcinogen Exposure (Continued Smokers Only)
Month 3
314.6 pg/mg creatinine
Standard Deviation 373.23
337.6 pg/mg creatinine
Standard Deviation 363.80
Carcinogen Exposure (Continued Smokers Only)
Month 6
219.8 pg/mg creatinine
Standard Deviation 236.30
217.1 pg/mg creatinine
Standard Deviation 251.82
Carcinogen Exposure (Continued Smokers Only)
Month 12
257.0 pg/mg creatinine
Standard Deviation 234.83
247.5 pg/mg creatinine
Standard Deviation 230.64

SECONDARY outcome

Timeframe: Month 3, Month 6, Month 12

Population: n=4 deceased participants were excluded from analysis, non-smokers at each time point excluded

Cotinine over 12 months, adjusted for creatinine. At Month 3, Month 6, and Month 12, participants provided a urine sample that was used to assess their level of urinary creatinine and cotinine. This analysis looks at NNAL among continuing smokers only.

Outcome measures

Outcome measures
Measure
Standard Smoking Cessation
n=197 Participants
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=197 Participants
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Cotinine (Continued Smokers Only)
Month 3
2771.2 ng/mg creatinine
Standard Deviation 2774.24
3305.8 ng/mg creatinine
Standard Deviation 2859.90
Cotinine (Continued Smokers Only)
Month 6
2850.7 ng/mg creatinine
Standard Deviation 2645.50
3502.2 ng/mg creatinine
Standard Deviation 2978.67
Cotinine (Continued Smokers Only)
Month 12
2733.9 ng/mg creatinine
Standard Deviation 2532.32
2782.7 ng/mg creatinine
Standard Deviation 2583.60

Adverse Events

Standard Smoking Cessation

Serious events: 9 serious events
Other events: 97 other events
Deaths: 1 deaths

Extended Nicotine Replacement Therapy

Serious events: 8 serious events
Other events: 163 other events
Deaths: 3 deaths

Serious adverse events

Serious adverse events
Measure
Standard Smoking Cessation
n=198 participants at risk
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=200 participants at risk
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Cardiac disorders
Arrhythmia
0.51%
1/198 • Number of events 1
1.5%
3/200 • Number of events 3
Cardiac disorders
Hospitalization for CHF
1.0%
2/198 • Number of events 2
1.0%
2/200 • Number of events 2
Cardiac disorders
Mesenteric Ischemia
0.00%
0/198
0.50%
1/200 • Number of events 1
Cardiac disorders
Myocardial Infarction
0.00%
0/198
0.50%
1/200 • Number of events 1
Cardiac disorders
TIA
0.51%
1/198 • Number of events 1
0.50%
1/200 • Number of events 1
Cardiac disorders
Revascularization
1.5%
3/198 • Number of events 3
0.00%
0/200
Cardiac disorders
Stroke
0.51%
1/198 • Number of events 1
0.00%
0/200
Cardiac disorders
Unstable angina
0.51%
1/198 • Number of events 1
0.00%
0/200

Other adverse events

Other adverse events
Measure
Standard Smoking Cessation
n=198 participants at risk
Participants in the standard smoking cessation (SC) arm will receive a standard approach to smoking cessation, including smoking cessation counseling supplemented with 10 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) if they are willing to make a quit attempt.
Extended Nicotine Replacement Therapy
n=200 participants at risk
Participants in the guided maintenance therapy (GMT) arm will receive counseling focused on medication adherence and smoking reduction plus up to 52 weeks of combination nicotine replacement therapy (NRT) (nicotine patch plus choice of gum or lozenge) regardless of their interest in quitting.
Product Issues
Local skin reactions
22.2%
44/198 • Number of events 89
40.5%
81/200 • Number of events 184
Product Issues
Upper GI symptoms
16.2%
32/198 • Number of events 42
31.0%
62/200 • Number of events 89
Product Issues
Sleep Disturbance
11.6%
23/198 • Number of events 25
20.5%
41/200 • Number of events 51
Product Issues
Oral discomfort
6.6%
13/198 • Number of events 14
13.0%
26/200 • Number of events 31
Product Issues
Headache
3.5%
7/198 • Number of events 10
9.0%
18/200 • Number of events 21
Product Issues
Change in affect or state of arousal
6.1%
12/198 • Number of events 13
10.0%
20/200 • Number of events 31
Product Issues
Cardiovascular symptoms
3.5%
7/198 • Number of events 9
6.5%
13/200 • Number of events 17
Product Issues
Hiccups
3.5%
7/198 • Number of events 8
5.5%
11/200 • Number of events 15
Product Issues
Muscle Aches
0.51%
1/198 • Number of events 1
3.0%
6/200 • Number of events 8
Product Issues
Bad Taste in Mouth
2.0%
4/198 • Number of events 5
5.5%
11/200 • Number of events 13
Product Issues
Dizziness
1.5%
3/198 • Number of events 3
5.5%
11/200 • Number of events 11
Product Issues
Increased Sweating
0.00%
0/198
3.5%
7/200 • Number of events 8
Product Issues
Diarrhea
2.0%
4/198 • Number of events 5
3.0%
6/200 • Number of events 8

Additional Information

Edward F. Ellerbeck, MD, MPH, Chair

Department of Preventive Medicine & Public Health

Phone: 913-588-2829

Results disclosure agreements

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