Trial Outcomes & Findings for Pharmacogenetics, Emotional Reactivity and Smoking (NCT NCT00507728)

NCT ID: NCT00507728

Last Updated: 2021-05-06

Results Overview

Emotional reactivity measured by the peak eye blink electromyography (EMG) of the orbicularis oculi (ORB) muscle responses to acoustic startle probe delivered during the presentation of emotionally valent stimuli (pleasant, unpleasant, neutral, and smoking-related pictures). A single value was estimated by averaging within the specific time interval.

Recruitment status

COMPLETED

Study phase

PHASE2/PHASE3

Target enrollment

646 participants

Primary outcome timeframe

Baseline to 1 month

Results posted on

2021-05-06

Participant Flow

A total of 254 subjects were randomized (varenicline: 75; bupropion: 89; placebo: 90 between December 2005 through October 2010. All subjects were residing in the Greater Houston Area and the study was completed at UT MD Anderson Cancer Center.

646 participants signed consent, 392 were screen failures

Participant milestones

Participant milestones
Measure
Varenicline
Varenicline starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter). Varenicline: Starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter)
Bupropion
Bupropion starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter). Bupropion: Starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter)
Placebo
Placebo by mouth for 12 weeks. Placebo: Placebo by mouth for 12 weeks.
Randomization to Month 3
STARTED
75
89
90
Randomization to Month 3
COMPLETED
60
75
70
Randomization to Month 3
NOT COMPLETED
15
14
20
From 3 Months to 6 Months
STARTED
60
75
70
From 3 Months to 6 Months
COMPLETED
54
65
61
From 3 Months to 6 Months
NOT COMPLETED
6
10
9

Reasons for withdrawal

Reasons for withdrawal
Measure
Varenicline
Varenicline starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter). Varenicline: Starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter)
Bupropion
Bupropion starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter). Bupropion: Starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter)
Placebo
Placebo by mouth for 12 weeks. Placebo: Placebo by mouth for 12 weeks.
Randomization to Month 3
Lost to Follow-up
15
14
20
From 3 Months to 6 Months
Lost to Follow-up
6
10
9

Baseline Characteristics

Pharmacogenetics, Emotional Reactivity and Smoking

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Varenicline
n=75 Participants
Varenicline starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter). Varenicline: Starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter)
Bupropion
n=89 Participants
Bupropion starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter). Bupropion: Starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter)
Placebo
n=90 Participants
Placebo by mouth for 12 weeks. Placebo: Placebo by mouth for 12 weeks.
Total
n=254 Participants
Total of all reporting groups
Age, Continuous
43.5 Years
STANDARD_DEVIATION 10.8 • n=5 Participants
44.5 Years
STANDARD_DEVIATION 9.3 • n=7 Participants
45.7 Years
STANDARD_DEVIATION 10.9 • n=5 Participants
44.6 Years
STANDARD_DEVIATION 10.35 • n=4 Participants
Sex: Female, Male
Female
30 Participants
n=5 Participants
34 Participants
n=7 Participants
34 Participants
n=5 Participants
98 Participants
n=4 Participants
Sex: Female, Male
Male
45 Participants
n=5 Participants
55 Participants
n=7 Participants
56 Participants
n=5 Participants
156 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
11 Participants
n=5 Participants
6 Participants
n=7 Participants
7 Participants
n=5 Participants
24 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
63 Participants
n=5 Participants
82 Participants
n=7 Participants
80 Participants
n=5 Participants
225 Participants
n=4 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
1 Participants
n=7 Participants
3 Participants
n=5 Participants
5 Participants
n=4 Participants
Race (NIH/OMB)
American Indian or Alaska Native
2 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
3 Participants
n=4 Participants
Race (NIH/OMB)
Asian
3 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
4 Participants
n=4 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
1 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
1 Participants
n=4 Participants
Race (NIH/OMB)
Black or African American
18 Participants
n=5 Participants
23 Participants
n=7 Participants
22 Participants
n=5 Participants
63 Participants
n=4 Participants
Race (NIH/OMB)
White
39 Participants
n=5 Participants
57 Participants
n=7 Participants
60 Participants
n=5 Participants
156 Participants
n=4 Participants
Race (NIH/OMB)
More than one race
10 Participants
n=5 Participants
4 Participants
n=7 Participants
6 Participants
n=5 Participants
20 Participants
n=4 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
n=5 Participants
3 Participants
n=7 Participants
2 Participants
n=5 Participants
7 Participants
n=4 Participants
Region of Enrollment
United States
75 participants
n=5 Participants
89 participants
n=7 Participants
90 participants
n=5 Participants
254 participants
n=4 Participants
Demographic and individual-level characteristics Wisconsin Smoking Withdrawal Scale (WSWS)
WSWS Anger Subscale
3.8 Score on a scale
STANDARD_DEVIATION 2.6 • n=5 Participants
4.2 Score on a scale
STANDARD_DEVIATION 2.7 • n=7 Participants
4.2 Score on a scale
STANDARD_DEVIATION 7.9 • n=5 Participants
4.1 Score on a scale
STANDARD_DEVIATION 2.6 • n=4 Participants
Demographic and individual-level characteristics Wisconsin Smoking Withdrawal Scale (WSWS)
WSWS Anxiety Subscale
7.3 Score on a scale
STANDARD_DEVIATION 2.7 • n=5 Participants
7.3 Score on a scale
STANDARD_DEVIATION 3.2 • n=7 Participants
7.9 Score on a scale
STANDARD_DEVIATION 3.3 • n=5 Participants
7.5 Score on a scale
STANDARD_DEVIATION 3.1 • n=4 Participants
Demographic and individual-level characteristics Wisconsin Smoking Withdrawal Scale (WSWS)
WSWS Concentration Subscale
3.7 Score on a scale
STANDARD_DEVIATION 1.9 • n=5 Participants
4 Score on a scale
STANDARD_DEVIATION 2.2 • n=7 Participants
3.9 Score on a scale
STANDARD_DEVIATION 2.2 • n=5 Participants
3.9 Score on a scale
STANDARD_DEVIATION 2.1 • n=4 Participants
Demographic and individual-level characteristics Wisconsin Smoking Withdrawal Scale (WSWS)
WSWS Craving Subscale
8.7 Score on a scale
STANDARD_DEVIATION 3.1 • n=5 Participants
9.4 Score on a scale
STANDARD_DEVIATION 2.8 • n=7 Participants
9.1 Score on a scale
STANDARD_DEVIATION 2.6 • n=5 Participants
9.1 Score on a scale
STANDARD_DEVIATION 2.8 • n=4 Participants
Demographic and individual-level characteristics Wisconsin Smoking Withdrawal Scale (WSWS)
WSWS Hunger Subscale
9.6 Score on a scale
STANDARD_DEVIATION 3.7 • n=5 Participants
9.8 Score on a scale
STANDARD_DEVIATION 3.3 • n=7 Participants
11.2 Score on a scale
STANDARD_DEVIATION 3.7 • n=5 Participants
10.2 Score on a scale
STANDARD_DEVIATION 3.6 • n=4 Participants
Demographic and individual-level characteristics Wisconsin Smoking Withdrawal Scale (WSWS)
WSWS Sadness Subscale
4.6 Score on a scale
STANDARD_DEVIATION 2.5 • n=5 Participants
4.2 Score on a scale
STANDARD_DEVIATION 2.4 • n=7 Participants
4.7 Score on a scale
STANDARD_DEVIATION 2.5 • n=5 Participants
4.5 Score on a scale
STANDARD_DEVIATION 2.8 • n=4 Participants
Demographic and individual-level characteristics Wisconsin Smoking Withdrawal Scale (WSWS)
WSWS Sleep Subscale
7.7 Score on a scale
STANDARD_DEVIATION 4.3 • n=5 Participants
9.3 Score on a scale
STANDARD_DEVIATION 4.5 • n=7 Participants
8.6 Score on a scale
STANDARD_DEVIATION 4.4 • n=5 Participants
8.6 Score on a scale
STANDARD_DEVIATION 4.5 • n=4 Participants
Demographic and individual-level characteristics -Positive and Negative Affect Scales (PANAS)
PANAS Positive Affect
35.8 Score on a scale
STANDARD_DEVIATION 7.1 • n=5 Participants
36.1 Score on a scale
STANDARD_DEVIATION 5.7 • n=7 Participants
35.8 Score on a scale
STANDARD_DEVIATION 6.2 • n=5 Participants
35.9 Score on a scale
STANDARD_DEVIATION 6.3 • n=4 Participants
Demographic and individual-level characteristics -Positive and Negative Affect Scales (PANAS)
PANAS Negative Affect
14.8 Score on a scale
STANDARD_DEVIATION 5.1 • n=5 Participants
15.6 Score on a scale
STANDARD_DEVIATION 6.9 • n=7 Participants
16.4 Score on a scale
STANDARD_DEVIATION 5.9 • n=5 Participants
15.6 Score on a scale
STANDARD_DEVIATION 5.3 • n=4 Participants
Demographic and individual-level characteristics - (CESD)
6.7 Score on a scale
STANDARD_DEVIATION 6.1 • n=5 Participants
6.9 Score on a scale
STANDARD_DEVIATION 6.1 • n=7 Participants
8.1 Score on a scale
STANDARD_DEVIATION 7.1 • n=5 Participants
7.3 Score on a scale
STANDARD_DEVIATION 6.5 • n=4 Participants
Demographic and individual-level characteristics -Modified Cigarette Evaluation Questionnaire (mCEQ)
mCEQ Smoking Satisfaction
4.3 scores on a scale
STANDARD_DEVIATION 1.1 • n=5 Participants
3.9 scores on a scale
STANDARD_DEVIATION 1.2 • n=7 Participants
4.2 scores on a scale
STANDARD_DEVIATION 1.2 • n=5 Participants
4.2 scores on a scale
STANDARD_DEVIATION 1.2 • n=4 Participants
Demographic and individual-level characteristics -Modified Cigarette Evaluation Questionnaire (mCEQ)
mCEQ Psychological Reward
4.1 scores on a scale
STANDARD_DEVIATION 4.9 • n=5 Participants
3.7 scores on a scale
STANDARD_DEVIATION 1.1 • n=7 Participants
3.6 scores on a scale
STANDARD_DEVIATION 1.3 • n=5 Participants
3.8 scores on a scale
STANDARD_DEVIATION 3.1 • n=4 Participants
Demographic and individual-level characteristics -Modified Cigarette Evaluation Questionnaire (mCEQ)
mCEQ Aversion
1.6 scores on a scale
STANDARD_DEVIATION 0.8 • n=5 Participants
1.6 scores on a scale
STANDARD_DEVIATION 0.7 • n=7 Participants
1.5 scores on a scale
STANDARD_DEVIATION 0.8 • n=5 Participants
1.5 scores on a scale
STANDARD_DEVIATION 0.8 • n=4 Participants
Demographic and individual-level characteristics -Modified Cigarette Evaluation Questionnaire (mCEQ)
mCEQ Enjoyment of Respiratory Tract Sensation
2.9 scores on a scale
STANDARD_DEVIATION 1.5 • n=5 Participants
2.9 scores on a scale
STANDARD_DEVIATION 1.4 • n=7 Participants
2.9 scores on a scale
STANDARD_DEVIATION 1.4 • n=5 Participants
2.9 scores on a scale
STANDARD_DEVIATION 1.5 • n=4 Participants
Demographic and individual-level characteristics -Modified Cigarette Evaluation Questionnaire (mCEQ)
mCEQ Craving Reduction
5.1 scores on a scale
STANDARD_DEVIATION 1.5 • n=5 Participants
5.1 scores on a scale
STANDARD_DEVIATION 1.4 • n=7 Participants
4.9 scores on a scale
STANDARD_DEVIATION 1.6 • n=5 Participants
5 scores on a scale
STANDARD_DEVIATION 1.5 • n=4 Participants

PRIMARY outcome

Timeframe: Baseline to 1 month

Emotional reactivity measured by the peak eye blink electromyography (EMG) of the orbicularis oculi (ORB) muscle responses to acoustic startle probe delivered during the presentation of emotionally valent stimuli (pleasant, unpleasant, neutral, and smoking-related pictures). A single value was estimated by averaging within the specific time interval.

Outcome measures

Outcome measures
Measure
Varenicline
n=78 Participants
Varenicline starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter). Varenicline: Starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter)
Bupropion
n=89 Participants
Bupropion starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter). Bupropion: Starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter)
Placebo
n=90 Participants
Placebo by mouth for 12 weeks. Placebo: Placebo by mouth for 12 weeks.
Bupropion With DRD2 A1 Allele
Subjects in the Bupropion group carrying the DRD2 A1 allele
Placebo w/o DRD2 A1 Allele
Subjects in the Placebo group not carrying the DRD2 A1 allele
Placebo With DRD2 A1 Allele
Subjects in the Bupropion group carrying the DRD2 A1 allele
Emotional Reactivity By Pharmacotherapy
Emotional Reactivity (ORB) to Cigarette Stimuli
66.6 microvolts
Interval 62.3 to 71.1
64.7 microvolts
Interval 60.9 to 68.5
65.6 microvolts
Interval 61.5 to 69.7
Emotional Reactivity By Pharmacotherapy
Emotional Reactivity (ORB) to Negative Stimuli
70.9 microvolts
Interval 66.4 to 75.4
73.1 microvolts
Interval 69.2 to 76.9
65.6 microvolts
Interval 61.5 to 69.7
Emotional Reactivity By Pharmacotherapy
Emotional Reactivity (ORB) to Positive Stimuli
66.7 microvolts
Interval 62.5 to 70.9
65.4 microvolts
Interval 61.8 to 68.9
64.7 microvolts
Interval 60.8 to 68.6
Emotional Reactivity By Pharmacotherapy
Emotional Reactivity (ORB) to Neutral Stimuli
59.6 microvolts
Interval 45.2 to 74.1
64.9 microvolts
Interval 52.7 to 77.2
72.5 microvolts
Interval 59.3 to 85.7

PRIMARY outcome

Timeframe: Baseline to 1 month

Population: 13 participants had missing data in DRD2 A1 and were not included in the analysis. 1 participant was from the Varenicline group, 7 from the Buproprion group and 5 from the placebo group.

The emotional reactivity (ORB EMG) of smokers during cessation will be moderated by genotype. A single value was estimated by averaging within the specific time interval. During a quit attempt, smokers were evaluated on how they react to smoking related cues. An interaction term was then formed by the reactivity to smoking stimulus and genotype.

Outcome measures

Outcome measures
Measure
Varenicline
n=48 Participants
Varenicline starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter). Varenicline: Starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter)
Bupropion
n=26 Participants
Bupropion starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter). Bupropion: Starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter)
Placebo
n=37 Participants
Placebo by mouth for 12 weeks. Placebo: Placebo by mouth for 12 weeks.
Bupropion With DRD2 A1 Allele
n=45 Participants
Subjects in the Bupropion group carrying the DRD2 A1 allele
Placebo w/o DRD2 A1 Allele
n=41 Participants
Subjects in the Placebo group not carrying the DRD2 A1 allele
Placebo With DRD2 A1 Allele
n=44 Participants
Subjects in the Bupropion group carrying the DRD2 A1 allele
Emotional Reactivity By Pharmacotherapy Moderated by DRD2 A1 Allele
Emotional Reactivity (ORB) to Cigarette Stimuli
66.5 microvolts
Interval 61.1 to 71.9
69.9 microvolts
Interval 62.8 to 77.0
66.2 microvolts
Interval 60.4 to 72.0
66 microvolts
Interval 60.9 to 71.2
67.3 microvolts
Interval 61.5 to 73.1
68.1 microvolts
Interval 62.2 to 73.9
Emotional Reactivity By Pharmacotherapy Moderated by DRD2 A1 Allele
Emotional Reactivity (ORB) to Negative Stimuli
70.5 microvolts
Interval 65.0 to 75.9
75.1 microvolts
Interval 67.9 to 82.2
78.6 microvolts
Interval 72.8 to 84.4
71.3 microvolts
Interval 66.2 to 76.5
74 microvolts
Interval 68.2 to 79.7
68.1 microvolts
Interval 62.2 to 73.9
Emotional Reactivity By Pharmacotherapy Moderated by DRD2 A1 Allele
Emotional Reactivity (ORB) to Positive Stimuli
65.5 microvolts
Interval 60.4 to 70.6
72 microvolts
Interval 65.3 to 78.7
71.3 microvolts
Interval 65.8 to 76.7
63.3 microvolts
Interval 58.4 to
68.5 microvolts
Interval 63.1 to 74.0
63.8 microvolts
Interval 58.3 to 69.4
Emotional Reactivity By Pharmacotherapy Moderated by DRD2 A1 Allele
Emotional Reactivity (ORB) to Neutral Stimuli
55.3 microvolts
Interval 37.4 to 73.2
67.2 microvolts
Interval 43.0 to 91.5
73.9 microvolts
Interval 54.6 to 93.1
61.2 microvolts
Interval 44.0 to 78.3
79.7 microvolts
Interval 61.0 to 98.5
67.8 microvolts
Interval 48.3 to 87.2

SECONDARY outcome

Timeframe: Baseline to 3 months

Values represent change in probability of abstinence for unit change in emotional reactivity. Abstinence data collected using a timeline follow-back (TLFB) procedure. Continuous Abstinence was defined as no smoking within the last 4 weeks of treatment. It is scored as 0 if the participant smoked during the specific interval, and 1 if the participant abstained from smoking.

Outcome measures

Outcome measures
Measure
Varenicline
n=75 Participants
Varenicline starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter). Varenicline: Starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter)
Bupropion
n=89 Participants
Bupropion starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter). Bupropion: Starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter)
Placebo
n=90 Participants
Placebo by mouth for 12 weeks. Placebo: Placebo by mouth for 12 weeks.
Bupropion With DRD2 A1 Allele
Subjects in the Bupropion group carrying the DRD2 A1 allele
Placebo w/o DRD2 A1 Allele
Subjects in the Placebo group not carrying the DRD2 A1 allele
Placebo With DRD2 A1 Allele
Subjects in the Bupropion group carrying the DRD2 A1 allele
Smoking Abstinence at 3 Months
Emotional Reactivity (ORB) to Neutral Stimuli
-0.004 probability
Interval -0.085 to 0.076
-0.008 probability
Interval -0.084 to 0.068
-0.007 probability
Interval -0.088 to 0.075
Smoking Abstinence at 3 Months
Emotional Reactivity (ORB) to Cigarette Stimuli
-0.003 probability
Interval -0.0777 to 0.072
-0.01 probability
Interval -0.084 to 0.065
-0.008 probability
Interval -0.096 to 0.081
Smoking Abstinence at 3 Months
Emotional Reactivity (ORB) to Negative Stimuli
-0.004 probability
Interval -0.081 to 0.073
-0.009 probability
Interval -0.076 to 0.058
-0.007 probability
Interval -0.088 to 0.073
Smoking Abstinence at 3 Months
Emotional Reactivity (ORB) to Positive Stimuli
-0.003 probability
Interval -0.081 to 0.076
-0.01 probability
Interval -0.084 to 0.064
-0.007 probability
Interval -0.092 to 0.079

SECONDARY outcome

Timeframe: Baseline to 3 Month

Population: 13 participants had missing data in DRD2 A1 and were not included in the analysis. 1 participant was from the Varenicline group, 7 from the Buproprion group and 5 from the placebo group.

Values represent change in probability of abstinence for unit change in emotional reactivity. Abstinence data collected using a timeline follow-back (TLFB) procedure. Continuous Abstinence was defined as no smoking within the last 4 weeks of treatment. It is scored as 0 if the participant smoked during the specific interval, and 1 if the participant abstained from smoking.

Outcome measures

Outcome measures
Measure
Varenicline
n=48 Participants
Varenicline starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter). Varenicline: Starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter)
Bupropion
n=26 Participants
Bupropion starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter). Bupropion: Starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter)
Placebo
n=37 Participants
Placebo by mouth for 12 weeks. Placebo: Placebo by mouth for 12 weeks.
Bupropion With DRD2 A1 Allele
n=45 Participants
Subjects in the Bupropion group carrying the DRD2 A1 allele
Placebo w/o DRD2 A1 Allele
n=41 Participants
Subjects in the Placebo group not carrying the DRD2 A1 allele
Placebo With DRD2 A1 Allele
n=44 Participants
Subjects in the Bupropion group carrying the DRD2 A1 allele
Smoking Abstinence at 3 Months by DRD2 A1 Allele
Emotional Reactivity (ORB) to Cigarette Stimuli
0.001 probability
Interval -0.002 to 0.004
-0.004 probability
Interval -0.008 to 0.0
0 probability
Interval -0.003 to 0.003
-0.003 probability
Interval -0.006 to 0.001
-0.001 probability
Interval -0.003 to 0.001
-0.004 probability
Interval -0.008 to 0.0
Smoking Abstinence at 3 Months by DRD2 A1 Allele
Emotional Reactivity (ORB) to Negative Stimuli
0.002 probability
Interval -0.002 to 0.005
-0.005 probability
Interval -0.008 to -0.001
0 probability
Interval -0.002 to 0.002
-0.004 probability
Interval -0.007 to 0.001
-0.001 probability
Interval -0.003 to 0.001
-0.004 probability
Interval -0.008 to 0.0
Smoking Abstinence at 3 Months by DRD2 A1 Allele
Emotional Reactivity (ORB) to Positive Stimuli
0.001 probability
Interval -0.002 to 0.005
-0.005 probability
Interval -0.009 to -0.001
0 probability
Interval -0.003 to 0.002
-0.003 probability
Interval -0.006 to 0.0
-0.001 probability
Interval -0.003 to 0.001
-0.004 probability
Interval -0.007 to 0.0
Smoking Abstinence at 3 Months by DRD2 A1 Allele
Emotional Reactivity (ORB) to Neutral Stimuli
0.001 probability
Interval -0.002 to 0.005
-0.005 probability
Interval -0.009 to -0.001
0.001 probability
Interval -0.002 to 0.003
-0.002 probability
Interval -0.005 to 0.001
-0.001 probability
Interval -0.003 to 0.001
-0.003 probability
Interval -0.007 to 0.001

SECONDARY outcome

Timeframe: Abstinence at 6 Months ( the effects shown are the increase/decrease in probability of abstinence for 1 unit increase in the predictor)

Values represent change in probability of abstinence for unit change in emotional reactivity. Abstinence data collected using a timeline follow-back (TLFB) procedure. Continuous Abstinence was defined as no smoking within the last 4 weeks of treatment. It is scored as 0 if the participant smoked during the specific interval, and 1 if the participant abstained from smoking.

Outcome measures

Outcome measures
Measure
Varenicline
n=75 Participants
Varenicline starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter). Varenicline: Starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter)
Bupropion
n=89 Participants
Bupropion starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter). Bupropion: Starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter)
Placebo
n=90 Participants
Placebo by mouth for 12 weeks. Placebo: Placebo by mouth for 12 weeks.
Bupropion With DRD2 A1 Allele
Subjects in the Bupropion group carrying the DRD2 A1 allele
Placebo w/o DRD2 A1 Allele
Subjects in the Placebo group not carrying the DRD2 A1 allele
Placebo With DRD2 A1 Allele
Subjects in the Bupropion group carrying the DRD2 A1 allele
Smoking Abstinence at 6 Months
Emotional Reactivity (ORB) to Cigaretee Stimuli
0.007 probability
Interval -0.067 to 0.082
-0.002 probability
Interval -0.073 to 0.069
-0.006 probability
Interval -0.091 to 0.079
Smoking Abstinence at 6 Months
Emotional Reactivity (ORB) to Negative Stimuli
0.008 probability
Interval -0.069 to 0.085
-0.003 probability
Interval -0.067 to 0.062
-0.005 probability
Interval -0.081 to 0.071
Smoking Abstinence at 6 Months
Emotional Reactivity (ORB) to Positive Stimuli
0.01 probability
Interval -0.065 to 0.086
-0.003 probability
Interval -0.075 to 0.068
-0.005 probability
Interval -0.087 to 0.078
Smoking Abstinence at 6 Months
Emotional Reactivity (ORB) to Neutral Stimuli
0.008 probability
Interval -0.071 to 0.087
-0.001 probability
Interval -0.078 to 0.076
-0.005 probability
Interval -0.052 to 0.041

SECONDARY outcome

Timeframe: Baseline to 6 Month ( the effects shown are the increase/decrease in probability of abstinence for 1 unit increase in the predictor)

Population: 13 participants had missing data in DRD2 A1 and were not included in the analysis. 1 participant was from the Varenicline group, 7 from the Buproprion group and 5 from the placebo group.

Values represent change in probability of abstinence for unit change in emotional reactivity. Abstinence data collected using a timeline follow-back (TLFB) procedure. Continuous Abstinence was defined as no smoking within the last 4 weeks of treatment. It is scored as 0 if the participant smoked during the specific interval, and 1 if the participant abstained from smoking.

Outcome measures

Outcome measures
Measure
Varenicline
n=48 Participants
Varenicline starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter). Varenicline: Starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter)
Bupropion
n=26 Participants
Bupropion starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter). Bupropion: Starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter)
Placebo
n=37 Participants
Placebo by mouth for 12 weeks. Placebo: Placebo by mouth for 12 weeks.
Bupropion With DRD2 A1 Allele
n=45 Participants
Subjects in the Bupropion group carrying the DRD2 A1 allele
Placebo w/o DRD2 A1 Allele
n=41 Participants
Subjects in the Placebo group not carrying the DRD2 A1 allele
Placebo With DRD2 A1 Allele
n=44 Participants
Subjects in the Bupropion group carrying the DRD2 A1 allele
Abstinence at 6 Months by DRD2 A1 Allele
Emotional Reactivity (ORB) to Neutral Stimuli
0.003 probability
Interval 0.0 to 0.005
-0.001 probability
Interval -0.005 to 0.003
0.001 probability
Interval -0.002 to 0.004
-0.001 probability
Interval -0.004 to 0.002
0 probability
Interval -0.002 to 0.001
-0.004 probability
Interval -0.009 to 0.0
Abstinence at 6 Months by DRD2 A1 Allele
Emotional Reactivity (ORB) to Cigarette Stimuli
0.003 probability
Interval 0.0 to 0.005
-0.001 probability
Interval -0.005 to 0.003
0.001 probability
Interval -0.002 to 0.003
-0.001 probability
Interval -0.004 to 0.002
0 probability
Interval -0.002 to 0.001
-0.005 probability
Interval -0.01 to 0.0
Abstinence at 6 Months by DRD2 A1 Allele
Emotional Reactivity (ORB) to Negative Stimuli
0.003 probability
Interval 0.001 to 0.005
-0.001 probability
Interval -0.005 to 0.003
0.001 probability
Interval -0.001 to 0.003
-0.002 probability
Interval -0.005 to 0.001
0 probability
Interval -0.002 to 0.001
-0.004 probability
Interval -0.008 to 0.0
Abstinence at 6 Months by DRD2 A1 Allele
Emotional Reactivity (ORB) to Positive Stimuli
0.003 probability
Interval 0.001 to 0.006
0 probability
Interval -0.005 to 0.004
0 probability
Interval -0.002 to 0.003
-0.001 probability
Interval -0.004 to 0.002
0 probability
Interval -0.002 to 0.002
-0.004 probability
Interval -0.008 to 0.0

SECONDARY outcome

Timeframe: Baseline to 8 months

Population: 13 participants had missing data in DRD2 A1 and were not included in the analysis. 1 participant was from the Varenicline group, 7 from the Buproprion group and 5 from the placebo group.

Symptoms of nicotine withdrawal measured using Wisconsin Smoking Withdrawal Scale (WSWS). The Wisconsin Withdrawal Scale (WSWS) contains 7 factors: Anger, Anxiety, Sadness, Concentration, Craving, Sleep, and Hunger. WSWS consists of 28 items that are scored on a 5-point Likert type scale (0 = strongly disagree, 4 = strongly agree). A single value was estimated by averaging within the specific time interval. Higher values represent worse outcome. The average value was estimated from Baseline to 8 months

Outcome measures

Outcome measures
Measure
Varenicline
n=48 Participants
Varenicline starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter). Varenicline: Starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter)
Bupropion
n=26 Participants
Bupropion starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter). Bupropion: Starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter)
Placebo
n=37 Participants
Placebo by mouth for 12 weeks. Placebo: Placebo by mouth for 12 weeks.
Bupropion With DRD2 A1 Allele
n=45 Participants
Subjects in the Bupropion group carrying the DRD2 A1 allele
Placebo w/o DRD2 A1 Allele
n=41 Participants
Subjects in the Placebo group not carrying the DRD2 A1 allele
Placebo With DRD2 A1 Allele
n=44 Participants
Subjects in the Bupropion group carrying the DRD2 A1 allele
Symptoms of Nicotine Withdrawal Using the Wisconsin Smoking Withdrawal Scale (WSWS)
Anger
4.394 score on a scale
Interval 3.629 to 5.159
4.222 score on a scale
Interval 3.152 to 5.291
4.28 score on a scale
Interval 3.402 to 5.157
4.41 score on a scale
Interval 3.59 to 5.23
5.584 score on a scale
Interval 4.744 to 6.424
5.752 score on a scale
Interval 4.884 to 6.621
Symptoms of Nicotine Withdrawal Using the Wisconsin Smoking Withdrawal Scale (WSWS)
Anxiety
6.218 score on a scale
Interval 5.384 to 7.052
5.873 score on a scale
Interval 4.707 to 7.038
6.587 score on a scale
Interval 5.63 to 7.543
6.587 score on a scale
Interval 5.63 to 7.543
7.785 score on a scale
Interval 6.87 to 8.7
7.915 score on a scale
Interval 6.968 to 8.862
Symptoms of Nicotine Withdrawal Using the Wisconsin Smoking Withdrawal Scale (WSWS)
Concentration
3.743 score on a scale
Interval 3.117 to 4.369
3.407 score on a scale
Interval 2.531 to 4.282
4.238 score on a scale
Interval 3.521 to 4.956
3.935 score on a scale
Interval 3.265 to 4.605
4.764 score on a scale
Interval 4.077 to 5.451
4.951 score on a scale
Interval 4.242 to 5.66
Symptoms of Nicotine Withdrawal Using the Wisconsin Smoking Withdrawal Scale (WSWS)
Craving
6.646 score on a scale
Interval 5.591 to 7.701
6.252 score on a scale
Interval 4.777 to 7.726
6.814 score on a scale
Interval 5.605 to 8.024
6.78 score on a scale
Interval 5.651 to 7.91
9.024 score on a scale
Interval 7.866 to 10.181
8.696 score on a scale
Interval 7.499 to 9.893
Symptoms of Nicotine Withdrawal Using the Wisconsin Smoking Withdrawal Scale (WSWS)
Hunger
11.016 score on a scale
Interval 10.09 to 11.942
10.707 score on a scale
Interval 9.413 to 12.001
9.79 score on a scale
Interval 8.729 to 10.852
11.082 score on a scale
Interval 10.09 to 12.074
11.207 score on a scale
Interval 10.19 to 12.223
11.044 score on a scale
Interval 9.994 to 12.095
Symptoms of Nicotine Withdrawal Using the Wisconsin Smoking Withdrawal Scale (WSWS)
Sadness
4.246 score on a scale
Interval 3.535 to 4.958
3.738 score on a scale
Interval 2.744 to 4.732
4.005 score on a scale
Interval 3.189 to 4.82
4.338 score on a scale
Interval 3.577 to 5.1
5.293 score on a scale
Interval 4.513 to 6.074
5.865 score on a scale
Interval 5.057 to 6.673
Symptoms of Nicotine Withdrawal Using the Wisconsin Smoking Withdrawal Scale (WSWS)
Sleep
7.721 score on a scale
Interval 6.494 to 8.948
8.153 score on a scale
Interval 6.438 to 9.868
9.672 score on a scale
Interval 8.265 to 11.079
9.528 score on a scale
Interval 8.214 to 10.843
9.078 score on a scale
Interval 7.731 to 10.424
8.629 score on a scale
Interval 7.236 to 10.023

SECONDARY outcome

Timeframe: Baseline to 8 months

Population: 13 participants had missing data in DRD2 A1 and were not included in the analysis. 1 participant was from the Varenicline group, 7 from the Buproprion group and 5 from the placebo group.

Symptoms of nicotine withdrawal and negative affect were measured using the Positive and Negative Affect Scale (PANAS). The Positive and Negative Affect Schedule (PANAS) is a self-report questionnaire to measure both positive and negative affect. Each item is rated on a 5-point scale of 1 (not at all) to 5 (very much). Scores can range from 10-50 for both the Positive and Negative Affect with the lower scores representing lower levels of Positive/Negative Affect and higher scores representing higher levels of Positive/Negative Affect. The average value was estimated from Baseline to 8 months

Outcome measures

Outcome measures
Measure
Varenicline
n=48 Participants
Varenicline starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter). Varenicline: Starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter)
Bupropion
n=26 Participants
Bupropion starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter). Bupropion: Starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter)
Placebo
n=37 Participants
Placebo by mouth for 12 weeks. Placebo: Placebo by mouth for 12 weeks.
Bupropion With DRD2 A1 Allele
n=45 Participants
Subjects in the Bupropion group carrying the DRD2 A1 allele
Placebo w/o DRD2 A1 Allele
n=41 Participants
Subjects in the Placebo group not carrying the DRD2 A1 allele
Placebo With DRD2 A1 Allele
n=44 Participants
Subjects in the Bupropion group carrying the DRD2 A1 allele
Symptoms of Nicotine Withdrawal and Negative Affect Using Positive and Negative Affect Scale (PANAS)
Positive Affect
35.507 score on a scale
Interval 33.494 to 37.521
37.315 score on a scale
Interval 34.5 to 40.13
36.429 score on a scale
Interval 34.122 to 38.735
35.281 score on a scale
Interval 33.125 to 37.437
33.672 score on a scale
Interval 31.463 to 35.882
33.984 score on a scale
Interval 31.709 to 36.259
Symptoms of Nicotine Withdrawal and Negative Affect Using Positive and Negative Affect Scale (PANAS)
Negative Affect
15.93 score on a scale
Interval 14.404 to 17.455
14.98 score on a scale
Interval 12.849 to 17.112
15.782 score on a scale
Interval 14.032 to 17.532
16.385 score on a scale
Interval 14.751 to 18.02
18.017 score on a scale
Interval 16.343 to 19.691
18.902 score on a scale
Interval 17.166 to 20.638

SECONDARY outcome

Timeframe: Baseline to 8 months

Population: 13 participants had missing data in DRD2 A1 and were not included in the analysis. 1 participant was from the Varenicline group, 7 from the Buproprion group and 5 from the placebo group.

Symptoms of nicotine withdrawal measured using Center for Epidemiologic Studies Depression Scale (CES-D). Center of Epidemiologic Studies Depression Scale (CESD) a 20-item measure that asks caregivers to rate how often over the past week they experienced symptoms associated with depression, such as restless sleep, poor appetite, and feeling lonely. Response options range from 0 to 3 for each item (0 = Rarely or None of the Time, 1 = Some or Little of the Time, 2 = Moderately or Much of the time, 3 = Most or Almost All the Time). Scores range from 0 to 60, with high scores indicating greater depressive symptoms. The average value was estimated from Baseline to 8 months

Outcome measures

Outcome measures
Measure
Varenicline
n=48 Participants
Varenicline starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter). Varenicline: Starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter)
Bupropion
n=26 Participants
Bupropion starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter). Bupropion: Starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter)
Placebo
n=37 Participants
Placebo by mouth for 12 weeks. Placebo: Placebo by mouth for 12 weeks.
Bupropion With DRD2 A1 Allele
n=45 Participants
Subjects in the Bupropion group carrying the DRD2 A1 allele
Placebo w/o DRD2 A1 Allele
n=41 Participants
Subjects in the Placebo group not carrying the DRD2 A1 allele
Placebo With DRD2 A1 Allele
n=44 Participants
Subjects in the Bupropion group carrying the DRD2 A1 allele
Symptoms of Depression Using the Center for Epidemiologic Studies Depression Scale (CES-D)
8.084 score on a scale
Interval 6.19 to 9.978
6.847 score on a scale
Interval 4.2 to 9.494
7.588 score on a scale
Interval 5.416 to 9.76
8.362 score on a scale
Interval 6.333 to 10.39
8.65 score on a scale
Interval 6.572 to 10.729
10.799 score on a scale
Interval 8.647 to 12.951

SECONDARY outcome

Timeframe: Baseline to 8 months

Population: 13 participants had missing data in DRD2 A1 and were not included in the analysis. 1 participant was from the Varenicline group, 7 from the Buproprion group and 5 from the placebo group.

Modified Cigarette Evaluation Questionnaire (mCEQ). mCEQ Smoking satisfaction: range (1-21); mCEQ Psychological Reward: range(1-35); mCEQ Aversion: range (1-14); mCEQ Enjoyment of Resp.Tract Sens: range (1-7); mCEQ Craving Reduction: range (1-7). For all scales of mCEQ higher scores indicate worse outcomes (greater intensity of smoking effect). Scores of mCEQ Smoking satisfaction, mCEQ psychological reward and mCEQ aversion were summed to create the subscales. mCEQ Enjoyment of Resp Tract Sens and mCEQ Craving Reduction were single items.

Outcome measures

Outcome measures
Measure
Varenicline
n=48 Participants
Varenicline starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter). Varenicline: Starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter)
Bupropion
n=26 Participants
Bupropion starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter). Bupropion: Starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter)
Placebo
n=37 Participants
Placebo by mouth for 12 weeks. Placebo: Placebo by mouth for 12 weeks.
Bupropion With DRD2 A1 Allele
n=45 Participants
Subjects in the Bupropion group carrying the DRD2 A1 allele
Placebo w/o DRD2 A1 Allele
n=41 Participants
Subjects in the Placebo group not carrying the DRD2 A1 allele
Placebo With DRD2 A1 Allele
n=44 Participants
Subjects in the Bupropion group carrying the DRD2 A1 allele
Measures of Smoking Satisfaction and Psychological Reward Using the Modified Cigarette Evaluation Questionnaire (mCEQ) Subscales
Smoking Satisfaction
2.895 score on a scale
Interval 1.912 to 3.879
2.591 score on a scale
Interval 1.253 to 3.93
4.064 score on a scale
Interval 2.94 to 5.187
3.369 score on a scale
Interval 2.135 to 4.603
3.025 score on a scale
Interval 2.087 to 3.963
3.515 score on a scale
Interval 2.368 to 4.662
Measures of Smoking Satisfaction and Psychological Reward Using the Modified Cigarette Evaluation Questionnaire (mCEQ) Subscales
Psychological Reward
2.819 score on a scale
Interval 2.109 to 3.528
2.155 score on a scale
Interval 1.181 to 3.13
2.519 score on a scale
Interval 1.693 to 3.346
2.723 score on a scale
Interval 1.812 to 3.634
3.575 score on a scale
Interval 2.861 to 4.289
3.246 score on a scale
Interval 2.399 to 4.093
Measures of Smoking Satisfaction and Psychological Reward Using the Modified Cigarette Evaluation Questionnaire (mCEQ) Subscales
Aversion
1.612 score on a scale
Interval 1.357 to 1.867
1.694 score on a scale
Interval 1.342 to 2.045
1.988 score on a scale
Interval 1.69 to 2.286
1.79 score on a scale
Interval 1.461 to 2.119
1.808 score on a scale
Interval 1.549 to 2.067
1.69 score on a scale
Interval 1.384 to 1.996
Measures of Smoking Satisfaction and Psychological Reward Using the Modified Cigarette Evaluation Questionnaire (mCEQ) Subscales
Enjoyment of Respiratory Tract Sensation
1.912 score on a scale
Interval 0.146 to 3.678
1.703 score on a scale
Interval -0.692 to 4.099
4.096 score on a scale
Interval 2.094 to 6.099
1.955 score on a scale
Interval -0.243 to 4.153
3.711 score on a scale
Interval 2.048 to 5.375
2.783 score on a scale
Interval 0.741 to 4.825
Measures of Smoking Satisfaction and Psychological Reward Using the Modified Cigarette Evaluation Questionnaire (mCEQ) Subscales
Craving Reduction
4.531 score on a scale
Interval 3.232 to 5.831
3.952 score on a scale
Interval 2.2 to 5.705
4.564 score on a scale
Interval 3.083 to 6.044
6.628 score on a scale
Interval 5.017 to 8.238
4.486 score on a scale
Interval 3.269 to 5.702
4.673 score on a scale
Interval 3.176 to 6.17

SECONDARY outcome

Timeframe: Baseline to 1 month

Population: 13 participants had missing data in DRD2 A1 and were not included in the analysis. 1 participant was from the Varenicline group, 7 from the Buproprion group and 5 from the placebo group.

Skin conductance response (SCR) amplitude measured by placing an electrodermal response transducer on the fore and ring fingers of the participants non-dominant hand, and heart rate (HR) was collected by placing a photoelectric pulse plethysmogram transducer on the middle finger of the participants non-dominant hand, during the presentation of emotionally valent stimuli (positive, negative, neutral, and smoking-related pictures). A single value was estimated by averaging within the specific time interval.

Outcome measures

Outcome measures
Measure
Varenicline
n=48 Participants
Varenicline starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter). Varenicline: Starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter)
Bupropion
n=26 Participants
Bupropion starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter). Bupropion: Starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter)
Placebo
n=37 Participants
Placebo by mouth for 12 weeks. Placebo: Placebo by mouth for 12 weeks.
Bupropion With DRD2 A1 Allele
n=45 Participants
Subjects in the Bupropion group carrying the DRD2 A1 allele
Placebo w/o DRD2 A1 Allele
n=41 Participants
Subjects in the Placebo group not carrying the DRD2 A1 allele
Placebo With DRD2 A1 Allele
n=44 Participants
Subjects in the Bupropion group carrying the DRD2 A1 allele
Skin Conductance Response
Skin conductance to Cigarette Stimuli
2.301 Microsiemens
Interval 1.619 to 2.982
2.016 Microsiemens
Interval 1.132 to 2.901
2.275 Microsiemens
Interval 1.512 to 3.037
1.797 Microsiemens
Interval 1.082 to 2.511
2.272 Microsiemens
Interval 1.54 to 3.005
2.443 Microsiemens
Interval 1.703 to 3.183
Skin Conductance Response
Skin conductance to Negative Stimuli
2.295 Microsiemens
Interval 1.613 to 2.976
1.969 Microsiemens
Interval 1.084 to 2.855
2.31 Microsiemens
Interval 1.547 to 3.072
1.695 Microsiemens
Interval 0.999 to 2.391
2.355 Microsiemens
Interval 1.611 to 3.099
2.485 Microsiemens
Interval 1.756 to 3.215
Skin Conductance Response
Skin conductance to Positive Stimuli
2.256 Microsiemens
Interval 1.58 to 2.931
1.984 Microsiemens
Interval 1.106 to 2.862
2.299 Microsiemens
Interval 1.542 to 3.055
1.7 Microsiemens
Interval 1.01 to 2.39
2.296 Microsiemens
Interval 1.569 to 3.023
2.565 Microsiemens
Interval 1.831 to 3.299
Skin Conductance Response
Skin conductance to Neutral Stimuli
2.261 Microsiemens
Interval 1.578 to 2.944
2.017 Microsiemens
Interval 1.13 to 2.904
2.369 Microsiemens
Interval 1.602 to 3.136
1.699 Microsiemens
Interval 1.002 to 2.397
2.362 Microsiemens
Interval 1.616 to 3.107
2.559 Microsiemens
Interval 1.82 to 3.299

SECONDARY outcome

Timeframe: Baseline to 1 month

Heart Rate Response. A single value was estimated by averaging within the specific time interval. During a quit attempt, smokers were evaluated on how they react to smoking related cues. An interaction term was then formed by the reactivity to smoking stimulus and genotype.

Outcome measures

Outcome measures
Measure
Varenicline
n=48 Participants
Varenicline starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter). Varenicline: Starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter)
Bupropion
n=26 Participants
Bupropion starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter). Bupropion: Starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter)
Placebo
n=37 Participants
Placebo by mouth for 12 weeks. Placebo: Placebo by mouth for 12 weeks.
Bupropion With DRD2 A1 Allele
n=45 Participants
Subjects in the Bupropion group carrying the DRD2 A1 allele
Placebo w/o DRD2 A1 Allele
n=41 Participants
Subjects in the Placebo group not carrying the DRD2 A1 allele
Placebo With DRD2 A1 Allele
n=44 Participants
Subjects in the Bupropion group carrying the DRD2 A1 allele
Heart Rate Response
Heart Rate response to Cigarette Stimuli
69.731 beats per minute
Interval 66.962 to 72.5
68.652 beats per minute
Interval 65.068 to 72.236
71.427 beats per minute
Interval 68.331 to 74.524
69.836 beats per minute
Interval 66.974 to 72.699
65.966 beats per minute
Interval 62.987 to 68.944
65.276 beats per minute
Interval 62.266 to 68.286
Heart Rate Response
Heart Rate response to Negative Stimuli
69.562 beats per minute
Interval 66.722 to 72.402
68.078 beats per minute
Interval 64.403 to 71.753
71.077 beats per minute
Interval 67.904 to 74.25
69.595 beats per minute
Interval 66.699 to 72.492
65.768 beats per minute
Interval 62.713 to 68.823
65.569 beats per minute
Interval 62.523 to 68.615
Heart Rate Response
Heart Rate response to Positive Stimuli
69.151 beats per minute
Interval 66.351 to 71.95
68.711 beats per minute
Interval 65.087 to 72.334
71.518 beats per minute
Interval 68.386 to 74.65
70.404 beats per minute
Interval 67.546 to 73.262
65.787 beats per minute
Interval 62.776 to 68.799
65.927 beats per minute
Interval 62.929 to 68.926
Heart Rate Response
Heart Rate response to Neutral Stimuli
69.621 beats per minute
Interval 66.798 to 72.444
68.969 beats per minute
Interval 65.315 to 72.624
71.706 beats per minute
Interval 68.546 to 74.865
70.234 beats per minute
Interval 67.351 to 73.117
65.237 beats per minute
Interval 62.2 to 68.273
66.04 beats per minute
Interval 62.981 to 69.098

Adverse Events

Varenicline

Serious events: 2 serious events
Other events: 63 other events
Deaths: 0 deaths

Bupropion

Serious events: 2 serious events
Other events: 69 other events
Deaths: 0 deaths

Placebo

Serious events: 0 serious events
Other events: 66 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Varenicline
n=75 participants at risk
Varenicline starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter). Varenicline: Starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter)
Bupropion
n=89 participants at risk
Bupropion starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter). Bupropion: Starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter)
Placebo
n=90 participants at risk
Placebo by mouth for 12 weeks. Placebo: Placebo by mouth for 12 weeks.
Respiratory, thoracic and mediastinal disorders
Shortness of Breath
2.7%
2/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Nervous system disorders
Dizziness
0.00%
0/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Skin and subcutaneous tissue disorders
Eczema
0.00%
0/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Renal and urinary disorders
Urinary Incontinence
0.00%
0/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Cardiac disorders
Chest pain - cardiac
1.3%
1/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Respiratory, thoracic and mediastinal disorders
Increased Coughing
1.3%
1/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months

Other adverse events

Other adverse events
Measure
Varenicline
n=75 participants at risk
Varenicline starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter). Varenicline: Starting dose 0.5 mg by mouth daily (0.5 mg every morning for days 1 - 3, then 0.5 mg twice a day for days 4 - 7, then 1 mg twice a day thereafter)
Bupropion
n=89 participants at risk
Bupropion starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter). Bupropion: Starting dose 150 mg by mouth daily (150 mg every morning for three days; 150 mg twice a day thereafter)
Placebo
n=90 participants at risk
Placebo by mouth for 12 weeks. Placebo: Placebo by mouth for 12 weeks.
Skin and subcutaneous tissue disorders
ABSCESS
1.3%
1/75 • Baseline, up to 8 months
2.2%
2/89 • Baseline, up to 8 months
2.2%
2/90 • Baseline, up to 8 months
Musculoskeletal and connective tissue disorders
ACCIDENTAL INJURY
0.00%
0/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
1.1%
1/90 • Baseline, up to 8 months
General disorders
APPETITE DECREASED
4.0%
3/75 • Baseline, up to 8 months
4.5%
4/89 • Baseline, up to 8 months
3.3%
3/90 • Baseline, up to 8 months
General disorders
APPETITE INCREASED
10.7%
8/75 • Baseline, up to 8 months
7.9%
7/89 • Baseline, up to 8 months
5.6%
5/90 • Baseline, up to 8 months
Respiratory, thoracic and mediastinal disorders
ASTHMA
0.00%
0/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
1.1%
1/90 • Baseline, up to 8 months
Psychiatric disorders
Abnormal Dreams
17.3%
13/75 • Baseline, up to 8 months
6.7%
6/89 • Baseline, up to 8 months
7.8%
7/90 • Baseline, up to 8 months
Immune system disorders
Allergic reaction
1.3%
1/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
1.1%
1/90 • Baseline, up to 8 months
Immune system disorders
Allergy, Seasonal
1.3%
1/75 • Baseline, up to 8 months
2.2%
2/89 • Baseline, up to 8 months
1.1%
1/90 • Baseline, up to 8 months
Psychiatric disorders
Anxiety Symptoms
6.7%
5/75 • Baseline, up to 8 months
5.6%
5/89 • Baseline, up to 8 months
14.4%
13/90 • Baseline, up to 8 months
Gastrointestinal disorders
BLOOD IN STOOL
0.00%
0/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Respiratory, thoracic and mediastinal disorders
BRONCHITIS
0.00%
0/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
1.1%
1/90 • Baseline, up to 8 months
Skin and subcutaneous tissue disorders
BRUISE
0.00%
0/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Musculoskeletal and connective tissue disorders
Back pain
1.3%
1/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
4.4%
4/90 • Baseline, up to 8 months
Eye disorders
Blurred vision
1.3%
1/75 • Baseline, up to 8 months
4.5%
4/89 • Baseline, up to 8 months
2.2%
2/90 • Baseline, up to 8 months
General disorders
Body odor
1.3%
1/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Nervous system disorders
Cerebrospinal fluid..
1.3%
1/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Cardiac disorders
Chest pain - cardiac
1.3%
1/75 • Baseline, up to 8 months
4.5%
4/89 • Baseline, up to 8 months
12.2%
11/90 • Baseline, up to 8 months
Musculoskeletal and connective tissue disorders
Chest wall pain
1.3%
1/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
4.4%
4/90 • Baseline, up to 8 months
Gastrointestinal disorders
Constipation
8.0%
6/75 • Baseline, up to 8 months
5.6%
5/89 • Baseline, up to 8 months
3.3%
3/90 • Baseline, up to 8 months
Endocrine disorders
DIABETES MELLITUS
0.00%
0/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
1.1%
1/90 • Baseline, up to 8 months
General disorders
Dehydration
0.00%
0/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Psychiatric disorders
Depression
8.0%
6/75 • Baseline, up to 8 months
7.9%
7/89 • Baseline, up to 8 months
11.1%
10/90 • Baseline, up to 8 months
Gastrointestinal disorders
Diarrhea
10.7%
8/75 • Baseline, up to 8 months
4.5%
4/89 • Baseline, up to 8 months
13.3%
12/90 • Baseline, up to 8 months
Psychiatric disorders
Disturbance in attention
9.3%
7/75 • Baseline, up to 8 months
7.9%
7/89 • Baseline, up to 8 months
13.3%
12/90 • Baseline, up to 8 months
General disorders
Dizziness
5.3%
4/75 • Baseline, up to 8 months
4.5%
4/89 • Baseline, up to 8 months
4.4%
4/90 • Baseline, up to 8 months
Nervous system disorders
Drowsiness
4.0%
3/75 • Baseline, up to 8 months
2.2%
2/89 • Baseline, up to 8 months
5.6%
5/90 • Baseline, up to 8 months
General disorders
Dry mouth
1.3%
1/75 • Baseline, up to 8 months
3.4%
3/89 • Baseline, up to 8 months
7.8%
7/90 • Baseline, up to 8 months
Gastrointestinal disorders
Dysphagia
0.00%
0/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Skin and subcutaneous tissue disorders
Eczema
8.0%
6/75 • Baseline, up to 8 months
6.7%
6/89 • Baseline, up to 8 months
3.3%
3/90 • Baseline, up to 8 months
Musculoskeletal and connective tissue disorders
Edema
4.0%
3/75 • Baseline, up to 8 months
4.5%
4/89 • Baseline, up to 8 months
5.6%
5/90 • Baseline, up to 8 months
Psychiatric disorders
Elevated mood
0.00%
0/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
1.1%
1/90 • Baseline, up to 8 months
Psychiatric disorders
Emotional liability
2.7%
2/75 • Baseline, up to 8 months
3.4%
3/89 • Baseline, up to 8 months
4.4%
4/90 • Baseline, up to 8 months
Eye disorders
Eye irritation
2.7%
2/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
2.2%
2/90 • Baseline, up to 8 months
General disorders
Fatigue
5.3%
4/75 • Baseline, up to 8 months
5.6%
5/89 • Baseline, up to 8 months
10.0%
9/90 • Baseline, up to 8 months
Gastrointestinal disorders
Flatulence
2.7%
2/75 • Baseline, up to 8 months
4.5%
4/89 • Baseline, up to 8 months
1.1%
1/90 • Baseline, up to 8 months
General disorders
Flushing
1.3%
1/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
2.2%
2/90 • Baseline, up to 8 months
Gastrointestinal disorders
Gastritis
8.0%
6/75 • Baseline, up to 8 months
5.6%
5/89 • Baseline, up to 8 months
4.4%
4/90 • Baseline, up to 8 months
Endocrine disorders
Glucose intolerance
0.00%
0/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
1.1%
1/90 • Baseline, up to 8 months
Nervous system disorders
Headache
12.0%
9/75 • Baseline, up to 8 months
14.6%
13/89 • Baseline, up to 8 months
12.2%
11/90 • Baseline, up to 8 months
Gastrointestinal disorders
Hemorrhoids
0.00%
0/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
1.1%
1/90 • Baseline, up to 8 months
Musculoskeletal and connective tissue disorders
Herniated Disc
1.3%
1/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Metabolism and nutrition disorders
Hypercholesterolemia
1.3%
1/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Cardiac disorders
Hypertension
4.0%
3/75 • Baseline, up to 8 months
2.2%
2/89 • Baseline, up to 8 months
2.2%
2/90 • Baseline, up to 8 months
Metabolism and nutrition disorders
Hypertriglyceridemia
0.00%
0/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Metabolism and nutrition disorders
Hypoglycemia
0.00%
0/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Endocrine disorders
Hypothyroidism
1.3%
1/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Respiratory, thoracic and mediastinal disorders
Increased Coughing
12.0%
9/75 • Baseline, up to 8 months
7.9%
7/89 • Baseline, up to 8 months
4.4%
4/90 • Baseline, up to 8 months
General disorders
Infection
1.3%
1/75 • Baseline, up to 8 months
6.7%
6/89 • Baseline, up to 8 months
3.3%
3/90 • Baseline, up to 8 months
General disorders
Influenza
8.0%
6/75 • Baseline, up to 8 months
9.0%
8/89 • Baseline, up to 8 months
2.2%
2/90 • Baseline, up to 8 months
Nervous system disorders
Insomnia
21.3%
16/75 • Baseline, up to 8 months
29.2%
26/89 • Baseline, up to 8 months
14.4%
13/90 • Baseline, up to 8 months
Psychiatric disorders
Irritability
14.7%
11/75 • Baseline, up to 8 months
15.7%
14/89 • Baseline, up to 8 months
14.4%
13/90 • Baseline, up to 8 months
Renal and urinary disorders
Kidney Stones
0.00%
0/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Reproductive system and breast disorders
Libido decreased
0.00%
0/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
General disorders
Mucositis oral
0.00%
0/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Musculoskeletal and connective tissue disorders
Musculoskeletal pain
13.3%
10/75 • Baseline, up to 8 months
10.1%
9/89 • Baseline, up to 8 months
13.3%
12/90 • Baseline, up to 8 months
Gastrointestinal disorders
Nausea
28.0%
21/75 • Baseline, up to 8 months
19.1%
17/89 • Baseline, up to 8 months
8.9%
8/90 • Baseline, up to 8 months
General disorders
Neck pain
1.3%
1/75 • Baseline, up to 8 months
2.2%
2/89 • Baseline, up to 8 months
1.1%
1/90 • Baseline, up to 8 months
Nervous system disorders
PARESTHESIA
1.3%
1/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
1.1%
1/90 • Baseline, up to 8 months
Respiratory, thoracic and mediastinal disorders
PNEUMONIA
0.00%
0/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
General disorders
Pain
1.3%
1/75 • Baseline, up to 8 months
2.2%
2/89 • Baseline, up to 8 months
6.7%
6/90 • Baseline, up to 8 months
General disorders
Pelvic pain
1.3%
1/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Psychiatric disorders
Reduced inhibition
0.00%
0/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Psychiatric disorders
Restlessness
0.00%
0/75 • Baseline, up to 8 months
5.6%
5/89 • Baseline, up to 8 months
5.6%
5/90 • Baseline, up to 8 months
Respiratory, thoracic and mediastinal disorders
Rhinitis
22.7%
17/75 • Baseline, up to 8 months
29.2%
26/89 • Baseline, up to 8 months
25.6%
23/90 • Baseline, up to 8 months
Skin and subcutaneous tissue disorders
SWEATING INCREASED
0.00%
0/75 • Baseline, up to 8 months
2.2%
2/89 • Baseline, up to 8 months
2.2%
2/90 • Baseline, up to 8 months
Nervous system disorders
Sensory disturbance
1.3%
1/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
2.2%
2/90 • Baseline, up to 8 months
Respiratory, thoracic and mediastinal disorders
Shortness of Breath
8.0%
6/75 • Baseline, up to 8 months
7.9%
7/89 • Baseline, up to 8 months
12.2%
11/90 • Baseline, up to 8 months
Respiratory, thoracic and mediastinal disorders
Sore throat
2.7%
2/75 • Baseline, up to 8 months
3.4%
3/89 • Baseline, up to 8 months
10.0%
9/90 • Baseline, up to 8 months
Psychiatric disorders
Suicidal ideation
0.00%
0/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
1.1%
1/90 • Baseline, up to 8 months
Surgical and medical procedures
Surgical and medical
1.3%
1/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
General disorders
TASTE PERVERSION
5.3%
4/75 • Baseline, up to 8 months
3.4%
3/89 • Baseline, up to 8 months
6.7%
6/90 • Baseline, up to 8 months
Musculoskeletal and connective tissue disorders
TREMOR
2.7%
2/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Cardiac disorders
Tachycardia/Palpita..
1.3%
1/75 • Baseline, up to 8 months
3.4%
3/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Respiratory, thoracic and mediastinal disorders
Tinnitus
0.00%
0/75 • Baseline, up to 8 months
2.2%
2/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
General disorders
Toothache
4.0%
3/75 • Baseline, up to 8 months
7.9%
7/89 • Baseline, up to 8 months
3.3%
3/90 • Baseline, up to 8 months
Renal and urinary disorders
URINARY INCONTINENCE
0.00%
0/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Renal and urinary disorders
Urinary frequency
1.3%
1/75 • Baseline, up to 8 months
3.4%
3/89 • Baseline, up to 8 months
0.00%
0/90 • Baseline, up to 8 months
Renal and urinary disorders
Urinary tract infection
0.00%
0/75 • Baseline, up to 8 months
1.1%
1/89 • Baseline, up to 8 months
1.1%
1/90 • Baseline, up to 8 months
Renal and urinary disorders
Urine abnormality
0.00%
0/75 • Baseline, up to 8 months
2.2%
2/89 • Baseline, up to 8 months
1.1%
1/90 • Baseline, up to 8 months
Gastrointestinal disorders
Vomiting
4.0%
3/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
2.2%
2/90 • Baseline, up to 8 months
General disorders
Weight gain
2.7%
2/75 • Baseline, up to 8 months
2.2%
2/89 • Baseline, up to 8 months
1.1%
1/90 • Baseline, up to 8 months
General disorders
Weight loss
0.00%
0/75 • Baseline, up to 8 months
0.00%
0/89 • Baseline, up to 8 months
1.1%
1/90 • Baseline, up to 8 months

Additional Information

Paul M Cinciripini, MD, Chair, Behavioral Science

UT MD Anderson Cancer Center

Phone: (713) 745-1868

Results disclosure agreements

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