Trial Outcomes & Findings for Adaptive Pharmacotherapy for Smoking Cessation (NCT NCT02501265)

NCT ID: NCT02501265

Last Updated: 2021-08-19

Results Overview

Number of participants who self report complete smoking abstinence over the last 30 days and are also verified to be abstinent by carbon monoxide (CO) expired breath testing with CO \< 7 parts per million.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

188 participants

Primary outcome timeframe

12 weeks post-TQD (Visit 4)

Results posted on

2021-08-19

Participant Flow

Participant milestones

Participant milestones
Measure
Varenicline Standard Protocol
Participant chooses Varenicline-based treatment and is then randomized to Standard Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts placebo Varenicline. Consistent with Varenicline Standard Treatment, 1 week prior to the TQD the participant will switch to active Varenicline and placebo Bupropion. Participant will continue active Varenicline and placebo Bupropion to 12 weeks post-TQD. Varenicline Standard Protocol: 4 weeks pre-TQD: Start Placebo Varenicline 1 week prior to TQD: Switch to Active Varenicline 1 week prior to TQD: Start Placebo Bupropion Varenicline + Placebo Bupropion to 12 weeks post TQD
Nicotine Patch Standard Protocol
Participant chooses Nicotine patch-based treatment and is then randomized to Standard Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts placebo Nicotine Patch. One week prior to TQD, participant will start placebo Bupropion. Consistent with Nicotine Patch Standard Treatment, participant will start active Nicotine Patch on TQD. Participant will continue active Nicotine Patch and placebo Bupropion to 12 weeks post-TQD. Nicotine Patch Standard Protocol: 4 weeks pre-TQD: Start Placebo Nicotine Patch TQD: Start active Nicotine Patch 1 week prior to TQD: Start Placebo Bupropion Nicotine Patch + Placebo Bupropion to 12 weeks post TQD
Varenicline Adaptive Protocol
Participant chooses Varenicline treatment and is randomized to Adaptive Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts active Varenicline. Two weeks prior to TQD, cigarettes smoked per day is assessed. If the number of cigarettes smoked per day is reduced by \>50%, the participant is considered a Varenicline responder, and starts placebo Bupropion 1 week prior to the TQD. If the participant DOES NOT reduce cigarettes smoked per day by \>50%, the participant is considered a Varenicline non-responder and starts active Bupropion 1 week prior to TQD. Varenicline responders will continue active Varenicline and placebo Bupropion to 12 weeks post TQD. Varenicline non-responders will continue active Varenicline and active Bupropion to 12 weeks post TQD. Varenicline Adaptive Protocol: VARENICLINE RESPONDER 4 weeks pre-TQD: Start Varenicline 2 weeks pre-TQD: DOES reduce cigs/day by \> 50% 1 week pre-TQD: Start Placebo Bupropion Varenicline + Placebo Bupropion to 12 weeks post TQD VARENICLINE NON-RESPONDER 4 weeks pre-TQD: Start Varenicline 2 weeks pre-TQD: DOES NOT reduce cigs/day by \> 50% 1 week pre-TQD: Start active Bupropion Varenicline + Bupropion to 12 weeks post TQD
Nicotine Patch Adaptive Protocol
Participant chooses Nicotine treatment and is randomized to Adaptive Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts active Nicotine Patches. Two weeks prior to TQD, cigarettes smoked per day is assessed. If cigarettes smoked per day is reduced by \>50%, the participant is considered a Nicotine Patch responder and starts placebo Bupropion 1 week prior to the TQD. If the participant DOES NOT reduce cigarettes smoked per day by \>50%, the participant is considered a Nicotine Patch non-responder and starts active Bupropion 1 week prior to the TQD. Nicotine Patch responders will continue active Nicotine Patches and placebo Bupropion to 12 weeks post TQD. Nicotine Patch non-responders will continue active Nicotine Patches and Bupropion to 12 weeks post TQD. Nicotine Adaptive Protocol: NICOTINE PATCH RESPONDER 4 weeks pre-TQD: Start Patch 2 weeks pre-TQD: DOES reduce cigs/day by \> 50% 1 week pre-TQD: Start Placebo Bupropion Patch + Placebo Bupropion to 12 weeks post TQD NICOTINE PATCH NON-RESPONDER 4 weeks pre-TQD: Start Patch 2 weeks pre-TQD: DOES NOT reduce cigs/day by \> 50% 1 week pre-TQD: Start Bupropion Patch + Bupropion to 12 weeks post TQD
Overall Study
STARTED
63
30
64
31
Overall Study
COMPLETED
46
21
46
23
Overall Study
NOT COMPLETED
17
9
18
8

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Adaptive Pharmacotherapy for Smoking Cessation

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Varenicline Standard Protocol
n=63 Participants
Participant chooses Varenicline-based treatment and is then randomized to Standard Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts placebo Varenicline. Consistent with Varenicline Standard Treatment, 1 week prior to the TQD the participant will switch to active Varenicline and placebo Bupropion. Participant will continue active Varenicline and placebo Bupropion to 12 weeks post-TQD. Varenicline Standard Protocol: 4 weeks pre-TQD: Start Placebo Varenicline 1 week prior to TQD: Switch to Active Varenicline 1 week prior to TQD: Start Placebo Bupropion Varenicline + Placebo Bupropion to 12 weeks post TQD
Nicotine Patch Standard Protocol
n=30 Participants
Participant chooses Nicotine patch-based treatment and is then randomized to Standard Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts placebo Nicotine Patch. One week prior to TQD, participant will start placebo Bupropion. Consistent with Nicotine Patch Standard Treatment, participant will start active Nicotine Patch on TQD. Participant will continue active Nicotine Patch and placebo Bupropion to 12 weeks post-TQD. Nicotine Patch Standard Protocol: 4 weeks pre-TQD: Start Placebo Nicotine Patch TQD: Start active Nicotine Patch 1 week prior to TQD: Start Placebo Bupropion Nicotine Patch + Placebo Bupropion to 12 weeks post TQD
Varenicline Adaptive Protocol
n=64 Participants
Participant chooses Varenicline treatment and is randomized to Adaptive Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts active Varenicline. Two weeks prior to TQD, cigarettes smoked per day is assessed. If the number of cigarettes smoked per day is reduced by \>50%, the participant is considered a Varenicline responder, and starts placebo Bupropion 1 week prior to the TQD. If the participant DOES NOT reduce cigarettes smoked per day by \>50%, the participant is considered a Varenicline non-responder and starts active Bupropion 1 week prior to TQD. Varenicline responders will continue active Varenicline and placebo Bupropion to 12 weeks post TQD. Varenicline non-responders will continue active Varenicline and active Bupropion to 12 weeks post TQD. Varenicline Adaptive Protocol: VARENICLINE RESPONDER 4 weeks pre-TQD: Start Varenicline 2 weeks pre-TQD: DOES reduce cigs/day by \> 50% 1 week pre-TQD: Start Placebo Bupropion Varenicline + Placebo Bupropion to 12 weeks post TQD VARENICLINE NON-RESPONDER 4 weeks pre-TQD: Start Varenicline 2 weeks pre-TQD: DOES NOT reduce cigs/day by \> 50% 1 week pre-TQD: Start active Bupropion Varenicline + Bupropion to 12 weeks post TQD
Nicotine Patch Adaptive Protocol
n=31 Participants
Participant chooses Nicotine treatment and is randomized to Adaptive Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts active Nicotine Patches. Two weeks prior to TQD, cigarettes smoked per day is assessed. If cigarettes smoked per day is reduced by \>50%, the participant is considered a Nicotine Patch responder and starts placebo Bupropion 1 week prior to the TQD. If the participant DOES NOT reduce cigarettes smoked per day by \>50%, the participant is considered a Nicotine Patch non-responder and starts active Bupropion 1 week prior to the TQD. Nicotine Patch responders will continue active Nicotine Patches and placebo Bupropion to 12 weeks post TQD. Nicotine Patch non-responders will continue active Nicotine Patches and Bupropion to 12 weeks post TQD. Nicotine Adaptive Protocol: NICOTINE PATCH RESPONDER 4 weeks pre-TQD: Start Patch 2 weeks pre-TQD: DOES reduce cigs/day by \> 50% 1 week pre-TQD: Start Placebo Bupropion Patch + Placebo Bupropion to 12 weeks post TQD NICOTINE PATCH NON-RESPONDER 4 weeks pre-TQD: Start Patch 2 weeks pre-TQD: DOES NOT reduce cigs/day by \> 50% 1 week pre-TQD: Start Bupropion Patch + Bupropion to 12 weeks post TQD
Total
n=188 Participants
Total of all reporting groups
Age, Continuous
50.4 years
STANDARD_DEVIATION 10.5 • n=93 Participants
45.0 years
STANDARD_DEVIATION 16.3 • n=4 Participants
49.1 years
STANDARD_DEVIATION 12.6 • n=27 Participants
50.3 years
STANDARD_DEVIATION 11.6 • n=483 Participants
49.1 years
STANDARD_DEVIATION 12.5 • n=36 Participants
Sex: Female, Male
Female
30 Participants
n=93 Participants
17 Participants
n=4 Participants
35 Participants
n=27 Participants
19 Participants
n=483 Participants
101 Participants
n=36 Participants
Sex: Female, Male
Male
33 Participants
n=93 Participants
13 Participants
n=4 Participants
29 Participants
n=27 Participants
12 Participants
n=483 Participants
87 Participants
n=36 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=93 Participants
0 Participants
n=4 Participants
1 Participants
n=27 Participants
2 Participants
n=483 Participants
4 Participants
n=36 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
62 Participants
n=93 Participants
30 Participants
n=4 Participants
63 Participants
n=27 Participants
29 Participants
n=483 Participants
184 Participants
n=36 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
0 Participants
n=483 Participants
0 Participants
n=36 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
0 Participants
n=483 Participants
0 Participants
n=36 Participants
Race (NIH/OMB)
Asian
1 Participants
n=93 Participants
1 Participants
n=4 Participants
1 Participants
n=27 Participants
0 Participants
n=483 Participants
3 Participants
n=36 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=93 Participants
0 Participants
n=4 Participants
1 Participants
n=27 Participants
0 Participants
n=483 Participants
1 Participants
n=36 Participants
Race (NIH/OMB)
Black or African American
23 Participants
n=93 Participants
21 Participants
n=4 Participants
19 Participants
n=27 Participants
17 Participants
n=483 Participants
80 Participants
n=36 Participants
Race (NIH/OMB)
White
38 Participants
n=93 Participants
6 Participants
n=4 Participants
41 Participants
n=27 Participants
13 Participants
n=483 Participants
98 Participants
n=36 Participants
Race (NIH/OMB)
More than one race
1 Participants
n=93 Participants
2 Participants
n=4 Participants
2 Participants
n=27 Participants
1 Participants
n=483 Participants
6 Participants
n=36 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=93 Participants
0 Participants
n=4 Participants
0 Participants
n=27 Participants
0 Participants
n=483 Participants
0 Participants
n=36 Participants

PRIMARY outcome

Timeframe: 12 weeks post-TQD (Visit 4)

Population: Intent-to-treat analysis of a clinical population with significant comorbidity and minimal exclusion criteria.

Number of participants who self report complete smoking abstinence over the last 30 days and are also verified to be abstinent by carbon monoxide (CO) expired breath testing with CO \< 7 parts per million.

Outcome measures

Outcome measures
Measure
Varenicline Standard Protocol
n=63 Participants
Participant chooses Varenicline-based treatment and is then randomized to Standard Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts placebo Varenicline. Consistent with Varenicline Standard Treatment, 1 week prior to the TQD the participant will switch to active Varenicline and placebo Bupropion. Participant will continue active Varenicline and placebo Bupropion to 12 weeks post-TQD. Varenicline Standard Protocol: 4 weeks pre-TQD: Start Placebo Varenicline 1 week prior to TQD: Switch to Active Varenicline 1 week prior to TQD: Start Placebo Bupropion Varenicline + Placebo Bupropion to 12 weeks post TQD
Nicotine Patch Standard Protocol
n=30 Participants
Participant chooses Nicotine patch-based treatment and is then randomized to Standard Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts placebo Nicotine Patch. One week prior to TQD, participant will start placebo Bupropion. Consistent with Nicotine Patch Standard Treatment, participant will start active Nicotine Patch on TQD. Participant will continue active Nicotine Patch and placebo Bupropion to 12 weeks post-TQD. Nicotine Patch Standard Protocol: 4 weeks pre-TQD: Start Placebo Nicotine Patch TQD: Start active Nicotine Patch 1 week prior to TQD: Start Placebo Bupropion Nicotine Patch + Placebo Bupropion to 12 weeks post TQD
Varenicline Adaptive Protocol
n=64 Participants
Participant chooses Varenicline treatment and is randomized to Adaptive Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts active Varenicline. Two weeks prior to TQD, cigarettes smoked per day is assessed. If the number of cigarettes smoked per day is reduced by \>50%, the participant is considered a Varenicline responder, and starts placebo Bupropion 1 week prior to the TQD. If the participant DOES NOT reduce cigarettes smoked per day by \>50%, the participant is considered a Varenicline non-responder and starts active Bupropion 1 week prior to TQD. Varenicline responders will continue active Varenicline and placebo Bupropion to 12 weeks post TQD. Varenicline non-responders will continue active Varenicline and active Bupropion to 12 weeks post TQD. Varenicline Adaptive Protocol: VARENICLINE RESPONDER 4 weeks pre-TQD: Start Varenicline 2 weeks pre-TQD: DOES reduce cigs/day by \> 50% 1 week pre-TQD: Start Placebo Bupropion Varenicline + Placebo Bupropion to 12 weeks post TQD VARENICLINE NON-RESPONDER 4 weeks pre-TQD: Start Varenicline 2 weeks pre-TQD: DOES NOT reduce cigs/day by \> 50% 1 week pre-TQD: Start active Bupropion Varenicline + Bupropion to 12 weeks post TQD
Nicotine Patch Adaptive Protocol
n=31 Participants
Participant chooses Nicotine treatment and is randomized to Adaptive Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts active Nicotine Patches. Two weeks prior to TQD, cigarettes smoked per day is assessed. If cigarettes smoked per day is reduced by \>50%, the participant is considered a Nicotine Patch responder and starts placebo Bupropion 1 week prior to the TQD. If the participant DOES NOT reduce cigarettes smoked per day by \>50%, the participant is considered a Nicotine Patch non-responder and starts active Bupropion 1 week prior to the TQD. Nicotine Patch responders will continue active Nicotine Patches and placebo Bupropion to 12 weeks post TQD. Nicotine Patch non-responders will continue active Nicotine Patches and Bupropion to 12 weeks post TQD. Nicotine Adaptive Protocol: NICOTINE PATCH RESPONDER 4 weeks pre-TQD: Start Patch 2 weeks pre-TQD: DOES reduce cigs/day by \> 50% 1 week pre-TQD: Start Placebo Bupropion Patch + Placebo Bupropion to 12 weeks post TQD NICOTINE PATCH NON-RESPONDER 4 weeks pre-TQD: Start Patch 2 weeks pre-TQD: DOES NOT reduce cigs/day by \> 50% 1 week pre-TQD: Start Bupropion Patch + Bupropion to 12 weeks post TQD
Biochemically-confirmed 30-day Continuous Smoking Abstinence
5 Participants
3 Participants
18 Participants
5 Participants

SECONDARY outcome

Timeframe: 12 weeks post-TQD (Visit 4)

Population: Intent-to-treat analysis of a clinical population with significant comorbidity and minimal exclusion criteria.

Number of participants who self report complete smoking abstinence over the last 7 days and are also verified to be abstinent by carbon monoxide (CO) expired breath testing with CO \< 7 parts per million.

Outcome measures

Outcome measures
Measure
Varenicline Standard Protocol
n=63 Participants
Participant chooses Varenicline-based treatment and is then randomized to Standard Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts placebo Varenicline. Consistent with Varenicline Standard Treatment, 1 week prior to the TQD the participant will switch to active Varenicline and placebo Bupropion. Participant will continue active Varenicline and placebo Bupropion to 12 weeks post-TQD. Varenicline Standard Protocol: 4 weeks pre-TQD: Start Placebo Varenicline 1 week prior to TQD: Switch to Active Varenicline 1 week prior to TQD: Start Placebo Bupropion Varenicline + Placebo Bupropion to 12 weeks post TQD
Nicotine Patch Standard Protocol
n=30 Participants
Participant chooses Nicotine patch-based treatment and is then randomized to Standard Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts placebo Nicotine Patch. One week prior to TQD, participant will start placebo Bupropion. Consistent with Nicotine Patch Standard Treatment, participant will start active Nicotine Patch on TQD. Participant will continue active Nicotine Patch and placebo Bupropion to 12 weeks post-TQD. Nicotine Patch Standard Protocol: 4 weeks pre-TQD: Start Placebo Nicotine Patch TQD: Start active Nicotine Patch 1 week prior to TQD: Start Placebo Bupropion Nicotine Patch + Placebo Bupropion to 12 weeks post TQD
Varenicline Adaptive Protocol
n=64 Participants
Participant chooses Varenicline treatment and is randomized to Adaptive Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts active Varenicline. Two weeks prior to TQD, cigarettes smoked per day is assessed. If the number of cigarettes smoked per day is reduced by \>50%, the participant is considered a Varenicline responder, and starts placebo Bupropion 1 week prior to the TQD. If the participant DOES NOT reduce cigarettes smoked per day by \>50%, the participant is considered a Varenicline non-responder and starts active Bupropion 1 week prior to TQD. Varenicline responders will continue active Varenicline and placebo Bupropion to 12 weeks post TQD. Varenicline non-responders will continue active Varenicline and active Bupropion to 12 weeks post TQD. Varenicline Adaptive Protocol: VARENICLINE RESPONDER 4 weeks pre-TQD: Start Varenicline 2 weeks pre-TQD: DOES reduce cigs/day by \> 50% 1 week pre-TQD: Start Placebo Bupropion Varenicline + Placebo Bupropion to 12 weeks post TQD VARENICLINE NON-RESPONDER 4 weeks pre-TQD: Start Varenicline 2 weeks pre-TQD: DOES NOT reduce cigs/day by \> 50% 1 week pre-TQD: Start active Bupropion Varenicline + Bupropion to 12 weeks post TQD
Nicotine Patch Adaptive Protocol
n=31 Participants
Participant chooses Nicotine treatment and is randomized to Adaptive Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts active Nicotine Patches. Two weeks prior to TQD, cigarettes smoked per day is assessed. If cigarettes smoked per day is reduced by \>50%, the participant is considered a Nicotine Patch responder and starts placebo Bupropion 1 week prior to the TQD. If the participant DOES NOT reduce cigarettes smoked per day by \>50%, the participant is considered a Nicotine Patch non-responder and starts active Bupropion 1 week prior to the TQD. Nicotine Patch responders will continue active Nicotine Patches and placebo Bupropion to 12 weeks post TQD. Nicotine Patch non-responders will continue active Nicotine Patches and Bupropion to 12 weeks post TQD. Nicotine Adaptive Protocol: NICOTINE PATCH RESPONDER 4 weeks pre-TQD: Start Patch 2 weeks pre-TQD: DOES reduce cigs/day by \> 50% 1 week pre-TQD: Start Placebo Bupropion Patch + Placebo Bupropion to 12 weeks post TQD NICOTINE PATCH NON-RESPONDER 4 weeks pre-TQD: Start Patch 2 weeks pre-TQD: DOES NOT reduce cigs/day by \> 50% 1 week pre-TQD: Start Bupropion Patch + Bupropion to 12 weeks post TQD
7-day Point Prevalence Biochemically Confirmed Abstinence
6 Participants
3 Participants
23 Participants
6 Participants

SECONDARY outcome

Timeframe: 52 weeks post-TQD

Population: Intent-to-treat analysis of a clinical population with significant comorbidity and minimal exclusion criteria.

Number of participants who self reported smoking abstinence over the last 24 hours assessed via single-item question.

Outcome measures

Outcome measures
Measure
Varenicline Standard Protocol
n=63 Participants
Participant chooses Varenicline-based treatment and is then randomized to Standard Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts placebo Varenicline. Consistent with Varenicline Standard Treatment, 1 week prior to the TQD the participant will switch to active Varenicline and placebo Bupropion. Participant will continue active Varenicline and placebo Bupropion to 12 weeks post-TQD. Varenicline Standard Protocol: 4 weeks pre-TQD: Start Placebo Varenicline 1 week prior to TQD: Switch to Active Varenicline 1 week prior to TQD: Start Placebo Bupropion Varenicline + Placebo Bupropion to 12 weeks post TQD
Nicotine Patch Standard Protocol
n=30 Participants
Participant chooses Nicotine patch-based treatment and is then randomized to Standard Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts placebo Nicotine Patch. One week prior to TQD, participant will start placebo Bupropion. Consistent with Nicotine Patch Standard Treatment, participant will start active Nicotine Patch on TQD. Participant will continue active Nicotine Patch and placebo Bupropion to 12 weeks post-TQD. Nicotine Patch Standard Protocol: 4 weeks pre-TQD: Start Placebo Nicotine Patch TQD: Start active Nicotine Patch 1 week prior to TQD: Start Placebo Bupropion Nicotine Patch + Placebo Bupropion to 12 weeks post TQD
Varenicline Adaptive Protocol
n=64 Participants
Participant chooses Varenicline treatment and is randomized to Adaptive Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts active Varenicline. Two weeks prior to TQD, cigarettes smoked per day is assessed. If the number of cigarettes smoked per day is reduced by \>50%, the participant is considered a Varenicline responder, and starts placebo Bupropion 1 week prior to the TQD. If the participant DOES NOT reduce cigarettes smoked per day by \>50%, the participant is considered a Varenicline non-responder and starts active Bupropion 1 week prior to TQD. Varenicline responders will continue active Varenicline and placebo Bupropion to 12 weeks post TQD. Varenicline non-responders will continue active Varenicline and active Bupropion to 12 weeks post TQD. Varenicline Adaptive Protocol: VARENICLINE RESPONDER 4 weeks pre-TQD: Start Varenicline 2 weeks pre-TQD: DOES reduce cigs/day by \> 50% 1 week pre-TQD: Start Placebo Bupropion Varenicline + Placebo Bupropion to 12 weeks post TQD VARENICLINE NON-RESPONDER 4 weeks pre-TQD: Start Varenicline 2 weeks pre-TQD: DOES NOT reduce cigs/day by \> 50% 1 week pre-TQD: Start active Bupropion Varenicline + Bupropion to 12 weeks post TQD
Nicotine Patch Adaptive Protocol
n=31 Participants
Participant chooses Nicotine treatment and is randomized to Adaptive Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts active Nicotine Patches. Two weeks prior to TQD, cigarettes smoked per day is assessed. If cigarettes smoked per day is reduced by \>50%, the participant is considered a Nicotine Patch responder and starts placebo Bupropion 1 week prior to the TQD. If the participant DOES NOT reduce cigarettes smoked per day by \>50%, the participant is considered a Nicotine Patch non-responder and starts active Bupropion 1 week prior to the TQD. Nicotine Patch responders will continue active Nicotine Patches and placebo Bupropion to 12 weeks post TQD. Nicotine Patch non-responders will continue active Nicotine Patches and Bupropion to 12 weeks post TQD. Nicotine Adaptive Protocol: NICOTINE PATCH RESPONDER 4 weeks pre-TQD: Start Patch 2 weeks pre-TQD: DOES reduce cigs/day by \> 50% 1 week pre-TQD: Start Placebo Bupropion Patch + Placebo Bupropion to 12 weeks post TQD NICOTINE PATCH NON-RESPONDER 4 weeks pre-TQD: Start Patch 2 weeks pre-TQD: DOES NOT reduce cigs/day by \> 50% 1 week pre-TQD: Start Bupropion Patch + Bupropion to 12 weeks post TQD
Phone-assessed Self-reported Abstinence
16 Participants
5 Participants
21 Participants
6 Participants

SECONDARY outcome

Timeframe: 12 weeks post-TQD (Visit 4)

Population: Analysis of a clinical population with significant comorbidity and minimal exclusion criteria.

The percentage of participants who decreased the number of daily cigarettes smoked by 50% or more from the baseline assessment visit to 12 weeks post target quit day assessment visit collected by self-report in participants who completed the 12-week post target quit day assessment visit

Outcome measures

Outcome measures
Measure
Varenicline Standard Protocol
n=56 Participants
Participant chooses Varenicline-based treatment and is then randomized to Standard Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts placebo Varenicline. Consistent with Varenicline Standard Treatment, 1 week prior to the TQD the participant will switch to active Varenicline and placebo Bupropion. Participant will continue active Varenicline and placebo Bupropion to 12 weeks post-TQD. Varenicline Standard Protocol: 4 weeks pre-TQD: Start Placebo Varenicline 1 week prior to TQD: Switch to Active Varenicline 1 week prior to TQD: Start Placebo Bupropion Varenicline + Placebo Bupropion to 12 weeks post TQD
Nicotine Patch Standard Protocol
n=25 Participants
Participant chooses Nicotine patch-based treatment and is then randomized to Standard Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts placebo Nicotine Patch. One week prior to TQD, participant will start placebo Bupropion. Consistent with Nicotine Patch Standard Treatment, participant will start active Nicotine Patch on TQD. Participant will continue active Nicotine Patch and placebo Bupropion to 12 weeks post-TQD. Nicotine Patch Standard Protocol: 4 weeks pre-TQD: Start Placebo Nicotine Patch TQD: Start active Nicotine Patch 1 week prior to TQD: Start Placebo Bupropion Nicotine Patch + Placebo Bupropion to 12 weeks post TQD
Varenicline Adaptive Protocol
n=59 Participants
Participant chooses Varenicline treatment and is randomized to Adaptive Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts active Varenicline. Two weeks prior to TQD, cigarettes smoked per day is assessed. If the number of cigarettes smoked per day is reduced by \>50%, the participant is considered a Varenicline responder, and starts placebo Bupropion 1 week prior to the TQD. If the participant DOES NOT reduce cigarettes smoked per day by \>50%, the participant is considered a Varenicline non-responder and starts active Bupropion 1 week prior to TQD. Varenicline responders will continue active Varenicline and placebo Bupropion to 12 weeks post TQD. Varenicline non-responders will continue active Varenicline and active Bupropion to 12 weeks post TQD. Varenicline Adaptive Protocol: VARENICLINE RESPONDER 4 weeks pre-TQD: Start Varenicline 2 weeks pre-TQD: DOES reduce cigs/day by \> 50% 1 week pre-TQD: Start Placebo Bupropion Varenicline + Placebo Bupropion to 12 weeks post TQD VARENICLINE NON-RESPONDER 4 weeks pre-TQD: Start Varenicline 2 weeks pre-TQD: DOES NOT reduce cigs/day by \> 50% 1 week pre-TQD: Start active Bupropion Varenicline + Bupropion to 12 weeks post TQD
Nicotine Patch Adaptive Protocol
n=28 Participants
Participant chooses Nicotine treatment and is randomized to Adaptive Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts active Nicotine Patches. Two weeks prior to TQD, cigarettes smoked per day is assessed. If cigarettes smoked per day is reduced by \>50%, the participant is considered a Nicotine Patch responder and starts placebo Bupropion 1 week prior to the TQD. If the participant DOES NOT reduce cigarettes smoked per day by \>50%, the participant is considered a Nicotine Patch non-responder and starts active Bupropion 1 week prior to the TQD. Nicotine Patch responders will continue active Nicotine Patches and placebo Bupropion to 12 weeks post TQD. Nicotine Patch non-responders will continue active Nicotine Patches and Bupropion to 12 weeks post TQD. Nicotine Adaptive Protocol: NICOTINE PATCH RESPONDER 4 weeks pre-TQD: Start Patch 2 weeks pre-TQD: DOES reduce cigs/day by \> 50% 1 week pre-TQD: Start Placebo Bupropion Patch + Placebo Bupropion to 12 weeks post TQD NICOTINE PATCH NON-RESPONDER 4 weeks pre-TQD: Start Patch 2 weeks pre-TQD: DOES NOT reduce cigs/day by \> 50% 1 week pre-TQD: Start Bupropion Patch + Bupropion to 12 weeks post TQD
Change in Cigarettes Smoked Per Day
80.4 percentage of participants
71.4 percentage of participants
89.4 percentage of participants
82.6 percentage of participants

SECONDARY outcome

Timeframe: 52 weeks post-TQD

Population: Analysis of a clinical population with significant comorbidity and minimal exclusion criteria.

The percentage of participants who decreased the number of daily cigarettes smoked by 50% or more from the baseline assessment visit to 52 weeks post target quit day assessment visit collected by self-report in participants who completed the 52-week post target quit day phone assessment.

Outcome measures

Outcome measures
Measure
Varenicline Standard Protocol
n=51 Participants
Participant chooses Varenicline-based treatment and is then randomized to Standard Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts placebo Varenicline. Consistent with Varenicline Standard Treatment, 1 week prior to the TQD the participant will switch to active Varenicline and placebo Bupropion. Participant will continue active Varenicline and placebo Bupropion to 12 weeks post-TQD. Varenicline Standard Protocol: 4 weeks pre-TQD: Start Placebo Varenicline 1 week prior to TQD: Switch to Active Varenicline 1 week prior to TQD: Start Placebo Bupropion Varenicline + Placebo Bupropion to 12 weeks post TQD
Nicotine Patch Standard Protocol
n=24 Participants
Participant chooses Nicotine patch-based treatment and is then randomized to Standard Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts placebo Nicotine Patch. One week prior to TQD, participant will start placebo Bupropion. Consistent with Nicotine Patch Standard Treatment, participant will start active Nicotine Patch on TQD. Participant will continue active Nicotine Patch and placebo Bupropion to 12 weeks post-TQD. Nicotine Patch Standard Protocol: 4 weeks pre-TQD: Start Placebo Nicotine Patch TQD: Start active Nicotine Patch 1 week prior to TQD: Start Placebo Bupropion Nicotine Patch + Placebo Bupropion to 12 weeks post TQD
Varenicline Adaptive Protocol
n=54 Participants
Participant chooses Varenicline treatment and is randomized to Adaptive Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts active Varenicline. Two weeks prior to TQD, cigarettes smoked per day is assessed. If the number of cigarettes smoked per day is reduced by \>50%, the participant is considered a Varenicline responder, and starts placebo Bupropion 1 week prior to the TQD. If the participant DOES NOT reduce cigarettes smoked per day by \>50%, the participant is considered a Varenicline non-responder and starts active Bupropion 1 week prior to TQD. Varenicline responders will continue active Varenicline and placebo Bupropion to 12 weeks post TQD. Varenicline non-responders will continue active Varenicline and active Bupropion to 12 weeks post TQD. Varenicline Adaptive Protocol: VARENICLINE RESPONDER 4 weeks pre-TQD: Start Varenicline 2 weeks pre-TQD: DOES reduce cigs/day by \> 50% 1 week pre-TQD: Start Placebo Bupropion Varenicline + Placebo Bupropion to 12 weeks post TQD VARENICLINE NON-RESPONDER 4 weeks pre-TQD: Start Varenicline 2 weeks pre-TQD: DOES NOT reduce cigs/day by \> 50% 1 week pre-TQD: Start active Bupropion Varenicline + Bupropion to 12 weeks post TQD
Nicotine Patch Adaptive Protocol
n=28 Participants
Participant chooses Nicotine treatment and is randomized to Adaptive Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts active Nicotine Patches. Two weeks prior to TQD, cigarettes smoked per day is assessed. If cigarettes smoked per day is reduced by \>50%, the participant is considered a Nicotine Patch responder and starts placebo Bupropion 1 week prior to the TQD. If the participant DOES NOT reduce cigarettes smoked per day by \>50%, the participant is considered a Nicotine Patch non-responder and starts active Bupropion 1 week prior to the TQD. Nicotine Patch responders will continue active Nicotine Patches and placebo Bupropion to 12 weeks post TQD. Nicotine Patch non-responders will continue active Nicotine Patches and Bupropion to 12 weeks post TQD. Nicotine Adaptive Protocol: NICOTINE PATCH RESPONDER 4 weeks pre-TQD: Start Patch 2 weeks pre-TQD: DOES reduce cigs/day by \> 50% 1 week pre-TQD: Start Placebo Bupropion Patch + Placebo Bupropion to 12 weeks post TQD NICOTINE PATCH NON-RESPONDER 4 weeks pre-TQD: Start Patch 2 weeks pre-TQD: DOES NOT reduce cigs/day by \> 50% 1 week pre-TQD: Start Bupropion Patch + Bupropion to 12 weeks post TQD
Change in Cigarettes Smoked Per Day (Phone)
67.6 percentage of participants
57.1 percentage of participants
84.8 percentage of participants
62.5 percentage of participants

Adverse Events

Varenicline Standard Protocol

Serious events: 1 serious events
Other events: 48 other events
Deaths: 1 deaths

Nicotine Patch Standard Protocol

Serious events: 0 serious events
Other events: 25 other events
Deaths: 0 deaths

Varenicline Adaptive Protocol

Serious events: 1 serious events
Other events: 58 other events
Deaths: 0 deaths

Nicotine Patch Adaptive Protocol

Serious events: 0 serious events
Other events: 25 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Varenicline Standard Protocol
n=63 participants at risk
Participant choses Varenicline-based treatment and is then randomized to Standard Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts placebo Varenicline. Consistent with Varenicline Standard Treatment, 1 week prior to the TQD the participant will switch to active Varenicline and placebo Bupropion. Participant will continue active Varenicline and placebo Bupropion to 12 weeks post-TQD. Varenicline Standard Protocol: 4 weeks pre-TQD: Start Placebo Varenicline 1 week prior to TQD: Switch to Active Varenicline 1 week prior to TQD: Start Placebo Bupropion Varenicline + Placebo Bupropion to 12 weeks post TQD
Nicotine Patch Standard Protocol
n=30 participants at risk
Participant choses Nicotine patch-based treatment and is then randomized to Standard Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts placebo Nicotine Patch. One week prior to TQD, participant will start placebo Bupropion. Consistent with Nicotine Patch Standard Treatment, participant will start active Nicotine Patch on TQD. Participant will continue active Nicotine Patch and placebo Bupropion to 12 weeks post-TQD. Nicotine Patch Standard Protocol: 4 weeks pre-TQD: Start Placebo Nicotine Patch TQD: Start active Nicotine Patch 1 week prior to TQD: Start Placebo Bupropion Nicotine Patch + Placebo Bupropion to 12 weeks post TQD
Varenicline Adaptive Protocol
n=64 participants at risk
Participant chooses Varenicline treatment and is randomized to Adaptive Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts active Varenicline. Two weeks prior to TQD, cigarettes smoked per day is assessed. If the number of cigarettes smoked per day is reduced by \>50%, the participant is considered a Varenicline responder, and starts placebo Bupropion 1 week prior to the TQD. If the participant DOES NOT reduce cigarettes smoked per day by \>50%, the participant is considered a Varenicline non-responder and starts active Bupropion 1 week prior to TQD. Varenicline responders will continue active Varenicline and placebo Bupropion to 12 weeks post TQD. Varenicline non-responders will continue active Varenicline and active Bupropion to 12 weeks post TQD. Varenicline Adaptive Protocol: VARENICLINE RESPONDER 4 weeks pre-TQD: Start Varenicline 2 weeks pre-TQD: DOES reduce cigs/day by \> 50% 1 week pre-TQD: Start Placebo Bupropion Varenicline + Placebo Bupropion to 12 weeks post TQD VARENICLINE NON-RESPONDER 4 weeks pre-TQD: Start Varenicline 2 weeks pre-TQD: DOES NOT reduce cigs/day by \> 50% 1 week pre-TQD: Start active Bupropion Varenicline + Bupropion to 12 weeks post TQD
Nicotine Patch Adaptive Protocol
n=31 participants at risk
Participant choses Nicotine treatment and is randomized to Adaptive Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts active Nicotine Patches. Two weeks prior to TQD, cigarettes smoked per day is assessed. If cigarettes smoked per day is reduced by \>50%, the participant is considered a Nicotine Patch responder and starts placebo Bupropion 1 week prior to the TQD. If the participant DOES NOT reduce cigarettes smoked per day by \>50%, the participant is considered a Nicotine Patch non-responder and starts active Bupropion 1 week prior to the TQD. Nicotine Patch responders will continue active Nicotine Patches and placebo Bupropion to 12 weeks post TQD. Nicotine Patch non-responders will continue active Nicotine Patches and Bupropion to 12 weeks post TQD. Nicotine Adaptive Protocol: NICOTINE PATCH RESPONDER 4 weeks pre-TQD: Start Patch 2 weeks pre-TQD: DOES reduce cigs/day by \> 50% 1 week pre-TQD: Start Placebo Bupropion Patch + Placebo Bupropion to 12 weeks post TQD NICOTINE PATCH NON-RESPONDER 4 weeks pre-TQD: Start Patch 2 weeks pre-TQD: DOES NOT reduce cigs/day by \> 50% 1 week pre-TQD: Start Bupropion Patch + Bupropion to 12 weeks post TQD
Respiratory, thoracic and mediastinal disorders
Hospitalization related to pulmonary infection
1.6%
1/63 • Number of events 1 • 12 months
Adverse events were collected in such a manner that specific adverse event terms cannot be separated or categorized. Specifically, participants were provided with open ended questions at each study visit to assess any symptom that might have occurred, and were asked to provide a description of these symptoms in their own words. What is reported below is total percentage of participants who reported adverse events of any kind.
0.00%
0/30 • 12 months
Adverse events were collected in such a manner that specific adverse event terms cannot be separated or categorized. Specifically, participants were provided with open ended questions at each study visit to assess any symptom that might have occurred, and were asked to provide a description of these symptoms in their own words. What is reported below is total percentage of participants who reported adverse events of any kind.
1.6%
1/64 • Number of events 1 • 12 months
Adverse events were collected in such a manner that specific adverse event terms cannot be separated or categorized. Specifically, participants were provided with open ended questions at each study visit to assess any symptom that might have occurred, and were asked to provide a description of these symptoms in their own words. What is reported below is total percentage of participants who reported adverse events of any kind.
0.00%
0/31 • 12 months
Adverse events were collected in such a manner that specific adverse event terms cannot be separated or categorized. Specifically, participants were provided with open ended questions at each study visit to assess any symptom that might have occurred, and were asked to provide a description of these symptoms in their own words. What is reported below is total percentage of participants who reported adverse events of any kind.

Other adverse events

Other adverse events
Measure
Varenicline Standard Protocol
n=63 participants at risk
Participant choses Varenicline-based treatment and is then randomized to Standard Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts placebo Varenicline. Consistent with Varenicline Standard Treatment, 1 week prior to the TQD the participant will switch to active Varenicline and placebo Bupropion. Participant will continue active Varenicline and placebo Bupropion to 12 weeks post-TQD. Varenicline Standard Protocol: 4 weeks pre-TQD: Start Placebo Varenicline 1 week prior to TQD: Switch to Active Varenicline 1 week prior to TQD: Start Placebo Bupropion Varenicline + Placebo Bupropion to 12 weeks post TQD
Nicotine Patch Standard Protocol
n=30 participants at risk
Participant choses Nicotine patch-based treatment and is then randomized to Standard Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts placebo Nicotine Patch. One week prior to TQD, participant will start placebo Bupropion. Consistent with Nicotine Patch Standard Treatment, participant will start active Nicotine Patch on TQD. Participant will continue active Nicotine Patch and placebo Bupropion to 12 weeks post-TQD. Nicotine Patch Standard Protocol: 4 weeks pre-TQD: Start Placebo Nicotine Patch TQD: Start active Nicotine Patch 1 week prior to TQD: Start Placebo Bupropion Nicotine Patch + Placebo Bupropion to 12 weeks post TQD
Varenicline Adaptive Protocol
n=64 participants at risk
Participant chooses Varenicline treatment and is randomized to Adaptive Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts active Varenicline. Two weeks prior to TQD, cigarettes smoked per day is assessed. If the number of cigarettes smoked per day is reduced by \>50%, the participant is considered a Varenicline responder, and starts placebo Bupropion 1 week prior to the TQD. If the participant DOES NOT reduce cigarettes smoked per day by \>50%, the participant is considered a Varenicline non-responder and starts active Bupropion 1 week prior to TQD. Varenicline responders will continue active Varenicline and placebo Bupropion to 12 weeks post TQD. Varenicline non-responders will continue active Varenicline and active Bupropion to 12 weeks post TQD. Varenicline Adaptive Protocol: VARENICLINE RESPONDER 4 weeks pre-TQD: Start Varenicline 2 weeks pre-TQD: DOES reduce cigs/day by \> 50% 1 week pre-TQD: Start Placebo Bupropion Varenicline + Placebo Bupropion to 12 weeks post TQD VARENICLINE NON-RESPONDER 4 weeks pre-TQD: Start Varenicline 2 weeks pre-TQD: DOES NOT reduce cigs/day by \> 50% 1 week pre-TQD: Start active Bupropion Varenicline + Bupropion to 12 weeks post TQD
Nicotine Patch Adaptive Protocol
n=31 participants at risk
Participant choses Nicotine treatment and is randomized to Adaptive Treatment arm (N=75). Four weeks prior to target quit date (TQD), participant starts active Nicotine Patches. Two weeks prior to TQD, cigarettes smoked per day is assessed. If cigarettes smoked per day is reduced by \>50%, the participant is considered a Nicotine Patch responder and starts placebo Bupropion 1 week prior to the TQD. If the participant DOES NOT reduce cigarettes smoked per day by \>50%, the participant is considered a Nicotine Patch non-responder and starts active Bupropion 1 week prior to the TQD. Nicotine Patch responders will continue active Nicotine Patches and placebo Bupropion to 12 weeks post TQD. Nicotine Patch non-responders will continue active Nicotine Patches and Bupropion to 12 weeks post TQD. Nicotine Adaptive Protocol: NICOTINE PATCH RESPONDER 4 weeks pre-TQD: Start Patch 2 weeks pre-TQD: DOES reduce cigs/day by \> 50% 1 week pre-TQD: Start Placebo Bupropion Patch + Placebo Bupropion to 12 weeks post TQD NICOTINE PATCH NON-RESPONDER 4 weeks pre-TQD: Start Patch 2 weeks pre-TQD: DOES NOT reduce cigs/day by \> 50% 1 week pre-TQD: Start Bupropion Patch + Bupropion to 12 weeks post TQD
General disorders
Report of any: Vivid Dreams, Constipation, Dry Mouth, Dizziness, Headache, Insomnia, Nausea, Anxiety
76.2%
48/63 • Number of events 48 • 12 months
Adverse events were collected in such a manner that specific adverse event terms cannot be separated or categorized. Specifically, participants were provided with open ended questions at each study visit to assess any symptom that might have occurred, and were asked to provide a description of these symptoms in their own words. What is reported below is total percentage of participants who reported adverse events of any kind.
83.3%
25/30 • Number of events 25 • 12 months
Adverse events were collected in such a manner that specific adverse event terms cannot be separated or categorized. Specifically, participants were provided with open ended questions at each study visit to assess any symptom that might have occurred, and were asked to provide a description of these symptoms in their own words. What is reported below is total percentage of participants who reported adverse events of any kind.
90.6%
58/64 • Number of events 58 • 12 months
Adverse events were collected in such a manner that specific adverse event terms cannot be separated or categorized. Specifically, participants were provided with open ended questions at each study visit to assess any symptom that might have occurred, and were asked to provide a description of these symptoms in their own words. What is reported below is total percentage of participants who reported adverse events of any kind.
80.6%
25/31 • Number of events 25 • 12 months
Adverse events were collected in such a manner that specific adverse event terms cannot be separated or categorized. Specifically, participants were provided with open ended questions at each study visit to assess any symptom that might have occurred, and were asked to provide a description of these symptoms in their own words. What is reported below is total percentage of participants who reported adverse events of any kind.

Additional Information

Dr. James Davis

Duke University School of Medicine

Phone: 919-668-5055

Results disclosure agreements

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