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Assessing Neuropsychiatric Symptoms Including Depression, Anxiety, Irritability, and Suicidal Thoughts or Behavior in Subjects Quitting Smoking on Varenicline Tartrate or Placebo

An Experimental Medicine, Randomized, Double-Blind Study Assessing Neuropsychiatric Symptoms In Quitting Smokers Treated With Varenicline Tartrate Or Placebo

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00749944
Enrollment
110
Registered
2008-09-10
Start date
2008-09-30
Completion date
2009-08-31
Last updated
2010-08-31

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Smoking Cessation

Keywords

nicotine withdrawal, smoking cessation, varenicline

Brief summary

Study objective is to compare neuropsychiatric adverse events in subjects treated with varenicline or placebo in a controlled setting where both groups are experiencing nicotine withdrawal.

Interventions

DRUGvarenicline

1 mg tablets twice daily by mouth (after one week of uptitration: 0.5mg once daily for three days, 0.5mg twice daily for four days)

DRUGplacebo

1 mg tablets twice daily by mouth (after one week of uptitration: 0.5mg once daily for three days, 0.5mg twice daily for four days)

Sponsors

Pfizer
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* smokers who smoke \>10 cigarettes/day and who have at least a moderate level of addiction as measured by the Fagerstrom Test for Nicotine Dependence (score \>5)

Exclusion criteria

* Any neuropsychiatric disease including depression, history of suicidal thoughts or behavior, bipolar disorder. * Any unstable medical condition

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in the Profile of Mood States (POMS): Total Mood Disturbance (TMD)Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).POMS TMD were responses to 65 items in 6 subscales (Tension-Anxiety, Depression-Dejection, Anger-Hostility, Vigor, Fatigue, and Confusion), on 'How you feel right now?' (scale:0=not at all, 1=a little, 2=moderately, 3=quite a bit, 4=extremely). All items were rated in the same direction except for Relaxed and Efficient in the Tension-Anxiety and Confusion subscales. TMD was the sum of the scores of all 6 subscales but weighting Vigor negatively. Summary results (TMD scores) were presented as transformed T-scores ranging from 30 (less disturbance) to 80 (more disturbance).
Change From Baseline in the Profile of Mood States (POMS): Tension-Anxiety SubscaleBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).POMS Tension-Anxiety subscale data were responses to 9 items regarding 'How you feel right now?' on a scale of 0=not at all, 1=a little, 2=moderately, 3=quite a bit, and 4=extremely. All items were rated in the same direction except for Relaxed. Summary results (subscale scores) were presented as transformed T-scores ranging from 30 (less disturbance) to 80 (more disturbance).
Change From Baseline in the Profile of Mood States (POMS): Depression-Dejection SubscaleBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).POMS Depression-Dejection subscale data responses to 15 items regarding 'How you feel right now?' on a scale of 0=not at all, 1=a little, 2=moderately, 3=quite a bit, and 4=extremely. Summary results (subscale scores) were presented as transformed T-scores ranging from 30 (less disturbance) to 80 (more disturbance).
Change From Baseline in the Profile of Mood States (POMS): Anger-Hostility SubscaleBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).POMS Anger-Hostility subscale data were responses to 12 items regarding 'How you feel right now?' on a scale of 0=not at all, 1=a little, 2=moderately, 3=quite a bit, and 4=extremely. Summary results (subscale scores) were presented as transformed T-scores ranging from 30 (less disturbance) to 80 (more disturbance).
Change From Baseline in the Profile of Mood States (POMS): Vigor SubscaleBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).POMS Vigor subscale data were responses to 8 items regarding 'How you feel right now?' on a scale of 0=not at all, 1=a little, 2=moderately, 3=quite a bit, and 4=extremely. Summary results (subscale scores) were presented as transformed T-scores ranging from 30 (less disturbance) to 80 (more disturbance).
Change From Baseline in the Profile of Mood States (POMS): Fatigue SubscaleBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).POMS Fatigue subscale data were responses to 7 items regarding 'How you feel right now?' on a scale of 0=not at all, 1=a little, 2=moderately, 3=quite a bit, and 4=extremely. All items were rated in the same direction. Summary results (subscale scores) were presented as transformed T-scores ranging from 30 (less disturbance) to 80 (more disturbance).
Change From Baseline in the Profile of Mood States (POMS): Confusion SubscaleBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).POMS Confusion subscale data were responses to 7 items regarding 'How you feel right now?' on a scale of 0=not at all, 1=a little, 2=moderately, 3=quite a bit, and 4=extremely. All items were rated in the same direction except for Efficient. Summary results (subscale scores) were presented as transformed T-scores ranging from 30 (less disturbance) to 80 (more disturbance).
Change From Baseline in the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScoreBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).The MADRS measures the overall severity of depressive symptoms and is a 10-item checklist. Each item was rated on a scale of 0 to 6, for a total score range of 0 (low severity of depressive symptoms) to 60 (high severity of depressive symptoms).
Change From Baseline in the Hamilton Anxiety Scale (HAM-A): Total ScoreBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).HAM-A measures treatment-related changes in generalized anxiety symptoms and is a 14-item questionnaire. Each item was scored from 0 (not present) to 4 (very severe) and a lower score indicated less affected. Total scores ranged from 0 (not affected) to 56 (very severely affected).
Change From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Aggression Total ScoreBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).The OAS-m contains 3 scales: Aggression (Questions \[Q\]1 to 4), Irritability (Q5 to 6), and Suicidality (Q7 to 7b). Aggression total score was calculated by summing the weighted scores in Q1 to 4. Scores for each question ranged from 0 (no events) to 5 (very severe events). Total scores ranged from 0 (no aggression) to any number with no upper limit depending on the frequency of agressive behaviour in a week.
Change From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScoreBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).The OAS-m contains 3 scales: Aggression (Questions \[Q\]1 to 4), Irritability (Q5 to 6), and Suicidality (Q7 to 7b). Irritability total score was calculated by summing the items in Q5 to 6. Scores for each question ranged from 0 (not at all) to 5 (extreme). Total scores ranged from 0 (no irritability) to 10 (extreme irritability).
Change From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Suicidality Total ScoreBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).The OAS-m contains 3 scales: Aggression (Questions \[Q\]1 to 4), Irritability (Q5 to 6), and Suicidality (Q7 to 7b). Suicidality total score was calculated by summing the items Q7 to 7b. Scores for Q7 ranged from 0 (none) to 6 (very extreme) and scores for Q7a to 7b ranged from 0 (none) to 5 (extreme). Total scores ranged from 0 (no suicidal tendency) to 16 (extreme/very extreme suicidal tendency).
Change From Baseline in the Social Dysfunction and Aggression Scale (SDAS): Total ScoreBaseline B (Week 2) to Week 4 (Period BC)The SDAS contains 11 items with 5 possible responses: 0=not present, 1=doubtful or very mild, 2=mild to moderate, 3=severe, and 4=extremely severe. The SDAS was collected 3 times a day during the inpatient abstinence period (BC). Total scores ranged from 0 (not present) to 44 (extremely severe).
Change From Baseline in the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScoreBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).The BIS-11 is a 30-item self-report questionnaire designed to assess general impulsiveness taking into account the multifactorial nature of the construct. Possible responses to each item were: 1=rarely/never, 2=occasionally, 3=often, and 4=almost always/always. Scores of Items 1, 7, 8, 9, 10, 12, 13, 15, 20, 29 and 30 were reversed when calculating the total score. Total score ranged from 30 (less impulsive) to 120 (more impulsive).

Secondary

MeasureTime frameDescription
Number of Participants With Carbon Monoxide Confirmed Daily Smoking CessationWeek 9 to Week 12Participants who reported no smoking and no use of other nicotine-containing products since the last study visit (on the Nicotine Use Inventory, which was used to collect the information of cigarette or other nicotine use during the study) and who did not have carbon monoxide of more than 10 parts per million at any time from Week 9 to Week 12
Change From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Total ScoreBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).The MNWS total score contains 9 items (urge to smoke; depressed mood; irritability, frustration, or anger; anxiety; difficulty concentrating; restlessness; increased appetite; difficulty going to sleep; difficulty staying asleep). Each item was rated from 0 to 4 where 0=not at all, 1=slight, 2=moderate, 3=quite a bit, and 4=extreme. Total scores were the average score for all 9 items and ranged from 0 (no withdrawal symptoms) to 4 (extreme withdrawal symptoms).
Change From Baseline in the Number of Cigarettes Smoked Per DayBaseline (Week 0) to Week 2
Number of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 5 to Week 13Participants who reported no smoking and no use of other nicotine-containing products since the last study visit (during treatment) in the previous 7 days and who did not have carbon monoxide of more than 10 parts per million for that observation (if measured).
Change From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Negative Affect Domain SubscaleBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).The MNWS negative affect domain subscale contains 4 items (depressed mood; irritability, frustration, or anger; anxiety; difficulty concentrating). Each item was rated from 0 to 4 where 0=not at all, 1=slight, 2=moderate, 3=quite a bit, and 4=extreme. Scores were the average from all 4 items and ranged from 0 (no negative affect) to 4 (extreme negative affect).
Change From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Insomnia Domain SubscaleBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).The MNWS insomnia domain subscale contains 2 items (difficulty going to sleep; difficulty staying asleep). Each item was rated from 0 to 4 where 0=not at all, 1=slight, 2=moderate, 3=quite a bit, and 4=extreme. Scores were the average of the 2 items and ranged from 0 (no insomnia) to 4 (extreme insomnia).
Change From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Urge to Smoke SubscaleBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).The MNWS urge to smoke subscale contains 1 item (urge to smoke) rated from 0 to 4 where 0=not at all, 1=slight, 2=moderate, 3=quite a bit, and 4=extreme. Scores ranged from 0 (no urge to smoke) to 4 (extreme urge to smoke).
Change From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Restlessness SubscaleBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).The MNWS restlessness subscale contains 1 item (restlessness) rated from 0 to 4 where 0=not at all, 1=slight, 2=moderate, 3=quite a bit, and 4=extreme. Scores ranged from 0 (no restlessness) to 4 (extreme restlessness).
Change From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Increased Appetite SubscaleBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).The MNWS increased appetite subscale contains 1 item (increased appetite) rated from 0 to 4 where 0=not at all, 1=slight, 2=moderate, 3=quite a bit, and 4=extreme. Scores ranged from 0 (no increased appetite) to 4 (extreme increased appetite).
Number of Participants Exceeding Thresholds for the Profile of Mood States (POMS): Total ScoreBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).POMS total mood disturbance (TMD) summary results were presented as transformed T-scores ranging from 30 (less disturbance) to 80 (more disturbance). Participants exceeding the threshold had an increase from baseline of 1 standard deviation of the TMD baseline T-score plus 1 or more.
Number of Participants Exceeding Thresholds for the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScoreBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).The MADRS measures the overall severity of depressive symptoms. Total score ranged from 0 (low severity of depressive symptoms) to 60 (high severity of depressive symptoms). Participants exceeding the threshold had a MADRS total score of more than 14 out of 60. MADRS total scores exceeding 14 may represent clinically notable effective symptomatology.
Number of Participants Exceeding Thresholds for the Hamilton Anxiety Scale (HAM-A): Total ScoreBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).HAM-A measures treatment-related changes in generalized anxiety symptoms. Total scores ranged from 0 (not affected) to 56 (very severely affected). Participants exceeding the threshold had a HAM-A total score of more than or equal to 14 out of 56. HAM-A total scores of more than or equal to 14 may reflect clinically noteworthy levels of anxiety.
Number of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Agression Total ScoreBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).The OAS-m contains 3 scales: Aggression, Irritability, and Suicidality. Aggression total score ranged from 0 (no aggression) to any number with no upper limit depending on the frequency of agressive behaviour in a week. Participants exceeding the threshold had an OAS-m Aggression total score of more than or equal to 3 out of any number with no upper limit depending on the frequency of agressive behaviour in a week. OAS-m Aggression total scores of more than or equal to 3 reflect clinically important aggression.
Number of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScoreBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).The OAS-m contains 3 scales: Aggression, Irritability, and Suicidality. Irritability total score ranged from 0 (no irritability) to 10 (extreme irritability). Participants exceeding the threshold had an OAS-m Irritability total score of more than or equal to 2 out of 10. OAS-m Irritability total scores of more than or equal to 2 reflect clinically important irritability.
Number of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Suicidality Total ScoreBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).The OAS-m contains 3 scales: Aggression, Irritability, and Suicidality. Suicidality total score ranged from 0 (no suicidal tendency) to 16 (extreme/very extreme suicidal tendency). No threshold criterion was determined for OAS-m Suicidality total score.
Number of Participants Exceeding Thresholds for the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScoreBaseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).The BIS-11 is designed to assess general impulsiveness taking into account the multifactorial nature of the construct. Total score ranged from 30 (less impulsive) to 120 (more impulsive). Participants exceeding the threshold had a BIS-11 total score more than or equal to 70 out of 120. BIS-11 total scores of more than or equal to 70 could reflect clinically important and potentially pathological impulsivity.
Number of Participants Exceeding Thresholds for the Social Dysfunction and Aggression Scale (SDAS): Total ScoreBaseline B (Week 2) to Week 4 (Period BC)SDAS total scores ranged from 0 (not present) to 44 (extremely severe). Participants exceeding the threshold had a SDAS total score of more than 6 out of 44.

Countries

United States

Participant flow

Pre-assignment details

857 participants were screened; 110 participants met the criteria for inclusion into the study and were assigned to study treatment

Participants by arm

ArmCount
Varenicline
Varenicline 0.5 milligrams (mg) administered once daily (QD) for the first 3 days followed by 0.5 mg varenicline twice daily (BID) for the next 4 days, then 1 mg varenicline BID for the remaining 11 weeks (starting on Day 8, the first day of Week 2)
55
Placebo
Placebo administered QD for the first 3 days followed by placebo administered BID for the remaining 11 weeks and 4 days (starting on Day 4)
55
Total110

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up21
Overall StudyOther10
Overall StudyWithdrawal by Subject20

Baseline characteristics

CharacteristicTotalPlaceboVarenicline
Age, Customized
>= 65 years
1 Participants0 Participants1 Participants
Age, Customized
Between 18 and 44 years
94 Participants47 Participants47 Participants
Age, Customized
Between 45 and 64 years
15 Participants8 Participants7 Participants
Sex: Female, Male
Female
37 Participants15 Participants22 Participants
Sex: Female, Male
Male
73 Participants40 Participants33 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
54 / 5552 / 55
serious
Total, serious adverse events
0 / 550 / 55

Outcome results

Primary

Change From Baseline in the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total Score

The BIS-11 is a 30-item self-report questionnaire designed to assess general impulsiveness taking into account the multifactorial nature of the construct. Possible responses to each item were: 1=rarely/never, 2=occasionally, 3=often, and 4=almost always/always. Scores of Items 1, 7, 8, 9, 10, 12, 13, 15, 20, 29 and 30 were reversed when calculating the total score. Total score ranged from 30 (less impulsive) to 120 (more impulsive).

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
VareniclineChange From Baseline in the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod AD (n=54, 54)1.34 scores on a scaleStandard Error 0.74
VareniclineChange From Baseline in the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod BC (n=53, 54)0.04 scores on a scaleStandard Error 0.49
VareniclineChange From Baseline in the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod AC (n=54, 54)0.45 scores on a scaleStandard Error 0.62
VareniclineChange From Baseline in the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod BD (n=53, 54)1.07 scores on a scaleStandard Error 0.49
VareniclineChange From Baseline in the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod AE (n=55, 54)1.19 scores on a scaleStandard Error 0.69
VareniclineChange From Baseline in the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod BE (n=53, 54)0.85 scores on a scaleStandard Error 0.52
VareniclineChange From Baseline in the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod AB (n=54, 54)0.34 scores on a scaleStandard Error 0.56
PlaceboChange From Baseline in the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod BE (n=53, 54)1.28 scores on a scaleStandard Error 0.44
PlaceboChange From Baseline in the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod AB (n=54, 54)-0.07 scores on a scaleStandard Error 0.5
PlaceboChange From Baseline in the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod AC (n=54, 54)0.37 scores on a scaleStandard Error 0.53
PlaceboChange From Baseline in the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod AD (n=54, 54)1.28 scores on a scaleStandard Error 1.03
PlaceboChange From Baseline in the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod AE (n=55, 54)0.90 scores on a scaleStandard Error 0.64
PlaceboChange From Baseline in the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod BC (n=53, 54)0.97 scores on a scaleStandard Error 0.43
PlaceboChange From Baseline in the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod BD (n=53, 54)1.81 scores on a scaleStandard Error 0.92
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo.95% CI: [-1.09, 1.9]
Comparison: Period AC: Difference varenicline versus placebo.95% CI: [-1.54, 1.71]
Comparison: Period AD: Difference varenicline versus placebo.95% CI: [-2.47, 2.6]
Comparison: Period AE: Difference varenicline versus placebo.95% CI: [-1.57, 2.15]
Comparison: Period BC: Difference varenicline versus placebo.95% CI: [-2.23, 0.36]
Comparison: Period BD: Difference varenicline versus placebo.95% CI: [-2.81, 1.33]
Comparison: Period BE: Difference varenicline versus placebo.95% CI: [-1.78, 0.92]
Primary

Change From Baseline in the Hamilton Anxiety Scale (HAM-A): Total Score

HAM-A measures treatment-related changes in generalized anxiety symptoms and is a 14-item questionnaire. Each item was scored from 0 (not present) to 4 (very severe) and a lower score indicated less affected. Total scores ranged from 0 (not affected) to 56 (very severely affected).

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
VareniclineChange From Baseline in the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod AD (n=54, 54)1.95 scores on a scaleStandard Error 0.41
VareniclineChange From Baseline in the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod BC (n=53, 54)3.15 scores on a scaleStandard Error 0.56
VareniclineChange From Baseline in the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod AC (n=54, 54)2.69 scores on a scaleStandard Error 0.37
VareniclineChange From Baseline in the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod BD (n=53, 54)0.74 scores on a scaleStandard Error 0.47
VareniclineChange From Baseline in the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod AE (n=55, 54)1.75 scores on a scaleStandard Error 0.28
VareniclineChange From Baseline in the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod BE (n=53, 54)0.73 scores on a scaleStandard Error 0.3
VareniclineChange From Baseline in the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod AB (n=54, 54)1.01 scores on a scaleStandard Error 0.32
PlaceboChange From Baseline in the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod BE (n=53, 54)0.81 scores on a scaleStandard Error 0.29
PlaceboChange From Baseline in the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod AB (n=54, 54)0.75 scores on a scaleStandard Error 0.27
PlaceboChange From Baseline in the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod AC (n=54, 54)2.16 scores on a scaleStandard Error 0.28
PlaceboChange From Baseline in the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod AD (n=54, 54)1.86 scores on a scaleStandard Error 0.42
PlaceboChange From Baseline in the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod AE (n=55, 54)1.61 scores on a scaleStandard Error 0.26
PlaceboChange From Baseline in the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod BC (n=53, 54)2.65 scores on a scaleStandard Error 0.47
PlaceboChange From Baseline in the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod BD (n=53, 54)0.77 scores on a scaleStandard Error 0.62
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo.95% CI: [-0.55, 1.08]
Comparison: Period AC: Difference varenicline versus placebo.95% CI: [-0.39, 1.46]
Comparison: Period AD: Difference varenicline versus placebo.95% CI: [-1.08, 1.25]
Comparison: Period AE: Difference varenicline versus placebo.95% CI: [-0.62, 0.9]
Comparison: Period BC: Difference varenicline versus placebo.95% CI: [-0.94, 1.95]
Comparison: Period BD: Difference varenicline versus placebo.95% CI: [-1.57, 1.51]
Comparison: Period BE: Difference varenicline versus placebo.95% CI: [-0.91, 0.75]
Primary

Change From Baseline in the Montgomery-Asberg Depression Rating Scale (MADRS): Total Score

The MADRS measures the overall severity of depressive symptoms and is a 10-item checklist. Each item was rated on a scale of 0 to 6, for a total score range of 0 (low severity of depressive symptoms) to 60 (high severity of depressive symptoms).

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
VareniclineChange From Baseline in the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod AD (n=54, 54)1.19 scores on a scaleStandard Error 0.29
VareniclineChange From Baseline in the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod BC (n=53, 54)2.27 scores on a scaleStandard Error 0.5
VareniclineChange From Baseline in the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod AC (n=54, 54)2.28 scores on a scaleStandard Error 0.35
VareniclineChange From Baseline in the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod BD (n=53, 54)-0.10 scores on a scaleStandard Error 0.35
VareniclineChange From Baseline in the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod AE (n=55, 54)1.52 scores on a scaleStandard Error 0.21
VareniclineChange From Baseline in the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod BE (n=53, 54)0.40 scores on a scaleStandard Error 0.24
VareniclineChange From Baseline in the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod AB (n=54, 54)1.05 scores on a scaleStandard Error 0.37
PlaceboChange From Baseline in the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod BE (n=53, 54)0.49 scores on a scaleStandard Error 0.3
PlaceboChange From Baseline in the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod AB (n=54, 54)0.83 scores on a scaleStandard Error 0.25
PlaceboChange From Baseline in the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod AC (n=54, 54)1.84 scores on a scaleStandard Error 0.3
PlaceboChange From Baseline in the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod AD (n=54, 54)1.41 scores on a scaleStandard Error 0.37
PlaceboChange From Baseline in the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod AE (n=55, 54)1.50 scores on a scaleStandard Error 0.28
PlaceboChange From Baseline in the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod BC (n=53, 54)1.69 scores on a scaleStandard Error 0.48
PlaceboChange From Baseline in the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod BD (n=53, 54)0.33 scores on a scaleStandard Error 0.53
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo.95% CI: [-0.66, 1.1]
Comparison: Period AC: Difference varenicline versus placebo.95% CI: [-0.46, 1.35]
Comparison: Period AD: Difference varenicline versus placebo.95% CI: [-1.16, 0.71]
Comparison: Period AE: Difference varenicline versus placebo.95% CI: [-0.68, 0.73]
Comparison: Period BC: Difference varenicline versus placebo.95% CI: [-0.79, 1.96]
Comparison: Period BD: Difference varenicline versus placebo.95% CI: [-1.69, 0.82]
Comparison: Period BE: Difference varenicline versus placebo.95% CI: [-0.86, 0.68]
Primary

Change From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Aggression Total Score

The OAS-m contains 3 scales: Aggression (Questions \[Q\]1 to 4), Irritability (Q5 to 6), and Suicidality (Q7 to 7b). Aggression total score was calculated by summing the weighted scores in Q1 to 4. Scores for each question ranged from 0 (no events) to 5 (very severe events). Total scores ranged from 0 (no aggression) to any number with no upper limit depending on the frequency of agressive behaviour in a week.

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
VareniclineChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Aggression Total ScorePeriod AD (n=54, 54)2.24 scores on a scaleStandard Error 1.75
VareniclineChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Aggression Total ScorePeriod BC (n=53, 54)0.83 scores on a scaleStandard Error 0.63
VareniclineChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Aggression Total ScorePeriod AC (n=54, 54)0.82 scores on a scaleStandard Error 0.37
VareniclineChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Aggression Total ScorePeriod BD (n=53, 54)1.94 scores on a scaleStandard Error 2.27
VareniclineChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Aggression Total ScorePeriod AE (n=55, 54)1.27 scores on a scaleStandard Error 0.7
VareniclineChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Aggression Total ScorePeriod BE (n=53, 54)1.00 scores on a scaleStandard Error 0.88
VareniclineChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Aggression Total ScorePeriod AB (n=54, 54)0.13 scores on a scaleStandard Error 0.27
PlaceboChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Aggression Total ScorePeriod BE (n=53, 54)-0.13 scores on a scaleStandard Error 0.23
PlaceboChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Aggression Total ScorePeriod AB (n=54, 54)0.48 scores on a scaleStandard Error 0.66
PlaceboChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Aggression Total ScorePeriod AC (n=54, 54)0.72 scores on a scaleStandard Error 0.39
PlaceboChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Aggression Total ScorePeriod AD (n=54, 54)0.75 scores on a scaleStandard Error 0.34
PlaceboChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Aggression Total ScorePeriod AE (n=55, 54)0.77 scores on a scaleStandard Error 0.48
PlaceboChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Aggression Total ScorePeriod BC (n=53, 54)0.22 scores on a scaleStandard Error 0.38
PlaceboChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Aggression Total ScorePeriod BD (n=53, 54)-0.15 scores on a scaleStandard Error 0.44
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo.95% CI: [-1.76, 1.06]
Comparison: Period AC: Difference varenicline versus placebo.95% CI: [-0.96, 1.17]
Comparison: Period AD: Difference varenicline versus placebo.95% CI: [-1.94, 4.91]
Comparison: Period AE: Difference varenicline versus placebo.95% CI: [-1.18, 2.18]
Comparison: Period BC: Difference varenicline versus placebo.95% CI: [-0.85, 2.07]
Comparison: Period BD: Difference varenicline versus placebo.95% CI: [-2.6, 6.79]
Comparison: Period BE: Difference varenicline versus placebo.95% CI: [-0.7, 2.96]
Primary

Change From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Irritability Total Score

The OAS-m contains 3 scales: Aggression (Questions \[Q\]1 to 4), Irritability (Q5 to 6), and Suicidality (Q7 to 7b). Irritability total score was calculated by summing the items in Q5 to 6. Scores for each question ranged from 0 (not at all) to 5 (extreme). Total scores ranged from 0 (no irritability) to 10 (extreme irritability).

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
VareniclineChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod AD (n=54, 54)0.46 scores on a scaleStandard Error 0.17
VareniclineChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod BC (n=53, 54)0.82 scores on a scaleStandard Error 0.16
VareniclineChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod AC (n=54, 54)0.43 scores on a scaleStandard Error 0.1
VareniclineChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod BD (n=53, 54)0.53 scores on a scaleStandard Error 0.19
VareniclineChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod AE (n=55, 54)0.32 scores on a scaleStandard Error 0.1
VareniclineChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod BE (n=53, 54)0.38 scores on a scaleStandard Error 0.11
VareniclineChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod AB (n=54, 54)0.01 scores on a scaleStandard Error 0.1
PlaceboChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod BE (n=53, 54)0.25 scores on a scaleStandard Error 0.08
PlaceboChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod AB (n=54, 54)0.01 scores on a scaleStandard Error 0.09
PlaceboChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod AC (n=54, 54)0.41 scores on a scaleStandard Error 0.09
PlaceboChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod AD (n=54, 54)0.35 scores on a scaleStandard Error 0.17
PlaceboChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod AE (n=55, 54)0.24 scores on a scaleStandard Error 0.08
PlaceboChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod BC (n=53, 54)0.78 scores on a scaleStandard Error 0.16
PlaceboChange From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod BD (n=53, 54)0.35 scores on a scaleStandard Error 0.24
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo.95% CI: [-0.26, 0.27]
Comparison: Period AC: Difference varenicline versus placebo.95% CI: [-0.25, 0.29]
Comparison: Period AD: Difference varenicline versus placebo.95% CI: [-0.37, 0.58]
Comparison: Period AE: Difference varenicline versus placebo.95% CI: [-0.17, 0.34]
Comparison: Period BC: Difference varenicline versus placebo.95% CI: [-0.4, 0.48]
Comparison: Period BD: Difference varenicline versus placebo.95% CI: [-0.44, 0.78]
Comparison: Period BE: Difference varenicline versus placebo.95% CI: [-0.14, 0.4]
Primary

Change From Baseline in the Overt Aggression Scale (Modified) (OAS-m): Suicidality Total Score

The OAS-m contains 3 scales: Aggression (Questions \[Q\]1 to 4), Irritability (Q5 to 6), and Suicidality (Q7 to 7b). Suicidality total score was calculated by summing the items Q7 to 7b. Scores for Q7 ranged from 0 (none) to 6 (very extreme) and scores for Q7a to 7b ranged from 0 (none) to 5 (extreme). Total scores ranged from 0 (no suicidal tendency) to 16 (extreme/very extreme suicidal tendency).

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: No change from baseline analysis was performed on the OAS-m Suicidality total score as the majority of observations were recorded as 0.

Primary

Change From Baseline in the Profile of Mood States (POMS): Anger-Hostility Subscale

POMS Anger-Hostility subscale data were responses to 12 items regarding 'How you feel right now?' on a scale of 0=not at all, 1=a little, 2=moderately, 3=quite a bit, and 4=extremely. Summary results (subscale scores) were presented as transformed T-scores ranging from 30 (less disturbance) to 80 (more disturbance).

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
VareniclineChange From Baseline in the Profile of Mood States (POMS): Anger-Hostility SubscalePeriod AD (n=55, 55)0.24 scores on a scaleStandard Error 0.36
VareniclineChange From Baseline in the Profile of Mood States (POMS): Anger-Hostility SubscalePeriod BC (n=53, 54)-0.00 scores on a scaleStandard Error 0.29
VareniclineChange From Baseline in the Profile of Mood States (POMS): Anger-Hostility SubscalePeriod AC (n=55, 55)-0.04 scores on a scaleStandard Error 0.31
VareniclineChange From Baseline in the Profile of Mood States (POMS): Anger-Hostility SubscalePeriod BD (n=53, 54)0.22 scores on a scaleStandard Error 0.41
VareniclineChange From Baseline in the Profile of Mood States (POMS): Anger-Hostility SubscalePeriod AE (n=55, 55)0.15 scores on a scaleStandard Error 0.3
VareniclineChange From Baseline in the Profile of Mood States (POMS): Anger-Hostility SubscalePeriod BE (n=54, 54)-0.05 scores on a scaleStandard Error 0.25
VareniclineChange From Baseline in the Profile of Mood States (POMS): Anger-Hostility SubscalePeriod AB (n=55, 55)0.16 scores on a scaleStandard Error 0.36
PlaceboChange From Baseline in the Profile of Mood States (POMS): Anger-Hostility SubscalePeriod BE (n=54, 54)-0.43 scores on a scaleStandard Error 0.18
PlaceboChange From Baseline in the Profile of Mood States (POMS): Anger-Hostility SubscalePeriod AB (n=55, 55)-0.69 scores on a scaleStandard Error 0.25
PlaceboChange From Baseline in the Profile of Mood States (POMS): Anger-Hostility SubscalePeriod AC (n=55, 55)-0.89 scores on a scaleStandard Error 0.16
PlaceboChange From Baseline in the Profile of Mood States (POMS): Anger-Hostility SubscalePeriod AD (n=55, 55)-1.00 scores on a scaleStandard Error 0.22
PlaceboChange From Baseline in the Profile of Mood States (POMS): Anger-Hostility SubscalePeriod AE (n=55, 55)-0.68 scores on a scaleStandard Error 0.15
PlaceboChange From Baseline in the Profile of Mood States (POMS): Anger-Hostility SubscalePeriod BC (n=53, 54)-0.52 scores on a scaleStandard Error 0.15
PlaceboChange From Baseline in the Profile of Mood States (POMS): Anger-Hostility SubscalePeriod BD (n=53, 54)-0.65 scores on a scaleStandard Error 0.19
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo.95% CI: [-0.02, 1.72]
Comparison: Period AC: Difference varenicline versus placebo.95% CI: [0.16, 1.54]
Comparison: Period AD: Difference varenicline versus placebo.95% CI: [0.39, 2.08]
Comparison: Period AE: Difference varenicline versus placebo.95% CI: [0.14, 1.52]
Comparison: Period BC: Difference varenicline versus placebo.95% CI: [-0.06, 1.09]
Comparison: Period BD: Difference varenicline versus placebo.95% CI: [0.05, 1.7]
Comparison: Period BE: Difference varenicline versus placebo.95% CI: [-0.12, 0.88]
Primary

Change From Baseline in the Profile of Mood States (POMS): Confusion Subscale

POMS Confusion subscale data were responses to 7 items regarding 'How you feel right now?' on a scale of 0=not at all, 1=a little, 2=moderately, 3=quite a bit, and 4=extremely. All items were rated in the same direction except for Efficient. Summary results (subscale scores) were presented as transformed T-scores ranging from 30 (less disturbance) to 80 (more disturbance).

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
VareniclineChange From Baseline in the Profile of Mood States (POMS): Confusion SubscalePeriod AD (n=55, 55)0.10 scores on a scaleStandard Error 0.18
VareniclineChange From Baseline in the Profile of Mood States (POMS): Confusion SubscalePeriod BC (n=53, 54)0.02 scores on a scaleStandard Error 0.22
VareniclineChange From Baseline in the Profile of Mood States (POMS): Confusion SubscalePeriod AC (n=55, 55)0.03 scores on a scaleStandard Error 0.17
VareniclineChange From Baseline in the Profile of Mood States (POMS): Confusion SubscalePeriod BD (n=53, 54)0.07 scores on a scaleStandard Error 0.22
VareniclineChange From Baseline in the Profile of Mood States (POMS): Confusion SubscalePeriod AE (n=55, 55)-0.01 scores on a scaleStandard Error 0.15
VareniclineChange From Baseline in the Profile of Mood States (POMS): Confusion SubscalePeriod BE (n=54, 54)-0.14 scores on a scaleStandard Error 0.18
VareniclineChange From Baseline in the Profile of Mood States (POMS): Confusion SubscalePeriod AB (n=55, 55)0.14 scores on a scaleStandard Error 0.19
PlaceboChange From Baseline in the Profile of Mood States (POMS): Confusion SubscalePeriod BE (n=54, 54)-0.02 scores on a scaleStandard Error 0.16
PlaceboChange From Baseline in the Profile of Mood States (POMS): Confusion SubscalePeriod AB (n=55, 55)-0.09 scores on a scaleStandard Error 0.12
PlaceboChange From Baseline in the Profile of Mood States (POMS): Confusion SubscalePeriod AC (n=55, 55)-0.18 scores on a scaleStandard Error 0.1
PlaceboChange From Baseline in the Profile of Mood States (POMS): Confusion SubscalePeriod AD (n=55, 55)-0.11 scores on a scaleStandard Error 0.13
PlaceboChange From Baseline in the Profile of Mood States (POMS): Confusion SubscalePeriod AE (n=55, 55)-0.03 scores on a scaleStandard Error 0.13
PlaceboChange From Baseline in the Profile of Mood States (POMS): Confusion SubscalePeriod BC (n=53, 54)-0.07 scores on a scaleStandard Error 0.11
PlaceboChange From Baseline in the Profile of Mood States (POMS): Confusion SubscalePeriod BD (n=53, 54)-0.02 scores on a scaleStandard Error 0.15
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo.95% CI: [-0.2, 0.65]
Comparison: Period AC: Difference varenicline versus placebo.95% CI: [-0.17, 0.58]
Comparison: Period AD: Difference varenicline versus placebo.95% CI: [-0.23, 0.65]
Comparison: Period AE: Difference varenicline versus placebo.95% CI: [-0.37, 0.41]
Comparison: Period BC: Difference varenicline versus placebo.95% CI: [-0.41, 0.59]
Comparison: Period BD: Difference varenicline versus placebo.95% CI: [-0.44, 0.63]
Comparison: Period BE: Difference varenicline versus placebo.95% CI: [-0.58, 0.34]
Primary

Change From Baseline in the Profile of Mood States (POMS): Depression-Dejection Subscale

POMS Depression-Dejection subscale data responses to 15 items regarding 'How you feel right now?' on a scale of 0=not at all, 1=a little, 2=moderately, 3=quite a bit, and 4=extremely. Summary results (subscale scores) were presented as transformed T-scores ranging from 30 (less disturbance) to 80 (more disturbance).

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
VareniclineChange From Baseline in the Profile of Mood States (POMS): Depression-Dejection SubscalePeriod AD (n=55, 55)0.56 scores on a scaleStandard Error 0.27
VareniclineChange From Baseline in the Profile of Mood States (POMS): Depression-Dejection SubscalePeriod BC (n=53, 54)0.51 scores on a scaleStandard Error 0.27
VareniclineChange From Baseline in the Profile of Mood States (POMS): Depression-Dejection SubscalePeriod AC (n=55, 55)0.50 scores on a scaleStandard Error 0.24
VareniclineChange From Baseline in the Profile of Mood States (POMS): Depression-Dejection SubscalePeriod BD (n=53, 54)0.49 scores on a scaleStandard Error 0.32
VareniclineChange From Baseline in the Profile of Mood States (POMS): Depression-Dejection SubscalePeriod AE (n=55, 55)0.44 scores on a scaleStandard Error 0.24
VareniclineChange From Baseline in the Profile of Mood States (POMS): Depression-Dejection SubscalePeriod BE (n=54, 54)0.32 scores on a scaleStandard Error 0.23
VareniclineChange From Baseline in the Profile of Mood States (POMS): Depression-Dejection SubscalePeriod AB (n=55, 55)0.38 scores on a scaleStandard Error 0.25
PlaceboChange From Baseline in the Profile of Mood States (POMS): Depression-Dejection SubscalePeriod BE (n=54, 54)0.23 scores on a scaleStandard Error 0.2
PlaceboChange From Baseline in the Profile of Mood States (POMS): Depression-Dejection SubscalePeriod AB (n=55, 55)-0.24 scores on a scaleStandard Error 0.18
PlaceboChange From Baseline in the Profile of Mood States (POMS): Depression-Dejection SubscalePeriod AC (n=55, 55)-0.24 scores on a scaleStandard Error 0.13
PlaceboChange From Baseline in the Profile of Mood States (POMS): Depression-Dejection SubscalePeriod AD (n=55, 55)-0.10 scores on a scaleStandard Error 0.16
PlaceboChange From Baseline in the Profile of Mood States (POMS): Depression-Dejection SubscalePeriod AE (n=55, 55)0.00 scores on a scaleStandard Error 0.19
PlaceboChange From Baseline in the Profile of Mood States (POMS): Depression-Dejection SubscalePeriod BC (n=53, 54)0.03 scores on a scaleStandard Error 0.13
PlaceboChange From Baseline in the Profile of Mood States (POMS): Depression-Dejection SubscalePeriod BD (n=53, 54)0.10 scores on a scaleStandard Error 0.14
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo.95% CI: [0, 1.24]
Comparison: Period AC: Difference varenicline versus placebo.95% CI: [0.18, 1.29]
Comparison: Period AD: Difference varenicline versus placebo.95% CI: [0.02, 1.3]
Comparison: Period AE: Difference varenicline versus placebo.95% CI: [-0.19, 1.05]
Comparison: Period BC: Difference varenicline versus placebo.95% CI: [-0.09, 1.05]
Comparison: Period BD: Difference varenicline versus placebo.95% CI: [-0.28, 1.06]
Comparison: Period BE: Difference varenicline versus placebo.95% CI: [-0.47, 0.65]
Primary

Change From Baseline in the Profile of Mood States (POMS): Fatigue Subscale

POMS Fatigue subscale data were responses to 7 items regarding 'How you feel right now?' on a scale of 0=not at all, 1=a little, 2=moderately, 3=quite a bit, and 4=extremely. All items were rated in the same direction. Summary results (subscale scores) were presented as transformed T-scores ranging from 30 (less disturbance) to 80 (more disturbance).

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
VareniclineChange From Baseline in the Profile of Mood States (POMS): Fatigue SubscalePeriod AD (n=55, 55)-0.58 scores on a scaleStandard Error 0.26
VareniclineChange From Baseline in the Profile of Mood States (POMS): Fatigue SubscalePeriod BC (n=53, 54)0.37 scores on a scaleStandard Error 0.32
VareniclineChange From Baseline in the Profile of Mood States (POMS): Fatigue SubscalePeriod AC (n=55, 55)-0.29 scores on a scaleStandard Error 0.28
VareniclineChange From Baseline in the Profile of Mood States (POMS): Fatigue SubscalePeriod BD (n=53, 54)-0.20 scores on a scaleStandard Error 0.29
VareniclineChange From Baseline in the Profile of Mood States (POMS): Fatigue SubscalePeriod AE (n=55, 55)-0.32 scores on a scaleStandard Error 0.27
VareniclineChange From Baseline in the Profile of Mood States (POMS): Fatigue SubscalePeriod BE (n=54, 54)-0.16 scores on a scaleStandard Error 0.29
VareniclineChange From Baseline in the Profile of Mood States (POMS): Fatigue SubscalePeriod AB (n=55, 55)-0.14 scores on a scaleStandard Error 0.29
PlaceboChange From Baseline in the Profile of Mood States (POMS): Fatigue SubscalePeriod BE (n=54, 54)-0.26 scores on a scaleStandard Error 0.25
PlaceboChange From Baseline in the Profile of Mood States (POMS): Fatigue SubscalePeriod AB (n=55, 55)-0.65 scores on a scaleStandard Error 0.29
PlaceboChange From Baseline in the Profile of Mood States (POMS): Fatigue SubscalePeriod AC (n=55, 55)-0.83 scores on a scaleStandard Error 0.24
PlaceboChange From Baseline in the Profile of Mood States (POMS): Fatigue SubscalePeriod AD (n=55, 55)-0.76 scores on a scaleStandard Error 0.27
PlaceboChange From Baseline in the Profile of Mood States (POMS): Fatigue SubscalePeriod AE (n=55, 55)-0.59 scores on a scaleStandard Error 0.24
PlaceboChange From Baseline in the Profile of Mood States (POMS): Fatigue SubscalePeriod BC (n=53, 54)-0.22 scores on a scaleStandard Error 0.23
PlaceboChange From Baseline in the Profile of Mood States (POMS): Fatigue SubscalePeriod BD (n=53, 54)-0.13 scores on a scaleStandard Error 0.3
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo.95% CI: [-0.29, 1.32]
Comparison: Period AC: Difference varenicline versus placebo.95% CI: [-0.17, 1.25]
Comparison: Period AD: Difference varenicline versus placebo.95% CI: [-0.55, 0.92]
Comparison: Period AE: Difference varenicline versus placebo.95% CI: [-0.46, 0.99]
Comparison: Period BC: Difference varenicline versus placebo.95% CI: [-0.19, 1.37]
Comparison: Period BD: Difference varenicline versus placebo.95% CI: [-0.91, 0.76]
Comparison: Period BE: Difference varenicline versus placebo.95% CI: [-0.65, 0.85]
Primary

Change From Baseline in the Profile of Mood States (POMS): Tension-Anxiety Subscale

POMS Tension-Anxiety subscale data were responses to 9 items regarding 'How you feel right now?' on a scale of 0=not at all, 1=a little, 2=moderately, 3=quite a bit, and 4=extremely. All items were rated in the same direction except for Relaxed. Summary results (subscale scores) were presented as transformed T-scores ranging from 30 (less disturbance) to 80 (more disturbance).

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
VareniclineChange From Baseline in the Profile of Mood States (POMS): Tension-Anxiety SubscalePeriod AD (n=55, 55)0.31 scores on a scaleStandard Error 0.24
VareniclineChange From Baseline in the Profile of Mood States (POMS): Tension-Anxiety SubscalePeriod BC (n=53, 54)-0.01 scores on a scaleStandard Error 0.24
VareniclineChange From Baseline in the Profile of Mood States (POMS): Tension-Anxiety SubscalePeriod AC (n=55, 55)0.15 scores on a scaleStandard Error 0.25
VareniclineChange From Baseline in the Profile of Mood States (POMS): Tension-Anxiety SubscalePeriod BD (n=53, 54)0.06 scores on a scaleStandard Error 0.23
VareniclineChange From Baseline in the Profile of Mood States (POMS): Tension-Anxiety SubscalePeriod AE (n=55, 55)0.01 scores on a scaleStandard Error 0.24
VareniclineChange From Baseline in the Profile of Mood States (POMS): Tension-Anxiety SubscalePeriod BE (n=54, 54)-0.35 scores on a scaleStandard Error 0.19
VareniclineChange From Baseline in the Profile of Mood States (POMS): Tension-Anxiety SubscalePeriod AB (n=55, 55)0.30 scores on a scaleStandard Error 0.3
PlaceboChange From Baseline in the Profile of Mood States (POMS): Tension-Anxiety SubscalePeriod BE (n=54, 54)-0.58 scores on a scaleStandard Error 0.21
PlaceboChange From Baseline in the Profile of Mood States (POMS): Tension-Anxiety SubscalePeriod AB (n=55, 55)-0.31 scores on a scaleStandard Error 0.25
PlaceboChange From Baseline in the Profile of Mood States (POMS): Tension-Anxiety SubscalePeriod AC (n=55, 55)-0.26 scores on a scaleStandard Error 0.21
PlaceboChange From Baseline in the Profile of Mood States (POMS): Tension-Anxiety SubscalePeriod AD (n=55, 55)-0.18 scores on a scaleStandard Error 0.27
PlaceboChange From Baseline in the Profile of Mood States (POMS): Tension-Anxiety SubscalePeriod AE (n=55, 55)-0.43 scores on a scaleStandard Error 0.2
PlaceboChange From Baseline in the Profile of Mood States (POMS): Tension-Anxiety SubscalePeriod BC (n=53, 54)-0.10 scores on a scaleStandard Error 0.25
PlaceboChange From Baseline in the Profile of Mood States (POMS): Tension-Anxiety SubscalePeriod BD (n=53, 54)-0.16 scores on a scaleStandard Error 0.29
Comparison: Period AD: Difference varenicline versus placebo.95% CI: [-0.26, 1.22]
Comparison: Period AE: Difference varenicline versus placebo.95% CI: [-0.18, 1.06]
Comparison: Period BC: Difference varenicline versus placebo.95% CI: [-0.58, 0.78]
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo.95% CI: [-0.15, 1.39]
Comparison: Period AC: Difference varenicline versus placebo.95% CI: [-0.24, 1.07]
Comparison: Period BD: Difference varenicline versus placebo.95% CI: [-0.48, 0.92]
Comparison: Period BE: Difference varenicline versus placebo.95% CI: [-0.26, 0.72]
Primary

Change From Baseline in the Profile of Mood States (POMS): Total Mood Disturbance (TMD)

POMS TMD were responses to 65 items in 6 subscales (Tension-Anxiety, Depression-Dejection, Anger-Hostility, Vigor, Fatigue, and Confusion), on 'How you feel right now?' (scale:0=not at all, 1=a little, 2=moderately, 3=quite a bit, 4=extremely). All items were rated in the same direction except for Relaxed and Efficient in the Tension-Anxiety and Confusion subscales. TMD was the sum of the scores of all 6 subscales but weighting Vigor negatively. Summary results (TMD scores) were presented as transformed T-scores ranging from 30 (less disturbance) to 80 (more disturbance).

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: Full analysis set (FAS): All randomized subjects with at least 1 dose of study drug and at least 1 post-baseline neuropsychiatric evaluation or Minnesota Nicotine Withdrawal Scale (MNWS) obtained; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
VareniclineChange From Baseline in the Profile of Mood States (POMS): Total Mood Disturbance (TMD)Period AD (n=55, 55)0.95 scores on a scaleStandard Error 0.43
VareniclineChange From Baseline in the Profile of Mood States (POMS): Total Mood Disturbance (TMD)Period BC (n=53, 54)0.48 scores on a scaleStandard Error 0.35
VareniclineChange From Baseline in the Profile of Mood States (POMS): Total Mood Disturbance (TMD)Period AC (n=55, 55)0.30 scores on a scaleStandard Error 0.35
VareniclineChange From Baseline in the Profile of Mood States (POMS): Total Mood Disturbance (TMD)Period BD (n=53, 54)1.07 scores on a scaleStandard Error 0.47
VareniclineChange From Baseline in the Profile of Mood States (POMS): Total Mood Disturbance (TMD)Period AE (n=55, 55)0.72 scores on a scaleStandard Error 0.36
VareniclineChange From Baseline in the Profile of Mood States (POMS): Total Mood Disturbance (TMD)Period BE (n=54, 54)0.59 scores on a scaleStandard Error 0.37
VareniclineChange From Baseline in the Profile of Mood States (POMS): Total Mood Disturbance (TMD)Period AB (n=55, 55)0.06 scores on a scaleStandard Error 0.39
PlaceboChange From Baseline in the Profile of Mood States (POMS): Total Mood Disturbance (TMD)Period BE (n=54, 54)0.96 scores on a scaleStandard Error 0.36
PlaceboChange From Baseline in the Profile of Mood States (POMS): Total Mood Disturbance (TMD)Period AB (n=55, 55)-0.66 scores on a scaleStandard Error 0.36
PlaceboChange From Baseline in the Profile of Mood States (POMS): Total Mood Disturbance (TMD)Period AC (n=55, 55)-0.17 scores on a scaleStandard Error 0.36
PlaceboChange From Baseline in the Profile of Mood States (POMS): Total Mood Disturbance (TMD)Period AD (n=55, 55)0.03 scores on a scaleStandard Error 0.41
PlaceboChange From Baseline in the Profile of Mood States (POMS): Total Mood Disturbance (TMD)Period AE (n=55, 55)0.22 scores on a scaleStandard Error 0.37
PlaceboChange From Baseline in the Profile of Mood States (POMS): Total Mood Disturbance (TMD)Period BC (n=53, 54)0.91 scores on a scaleStandard Error 0.31
PlaceboChange From Baseline in the Profile of Mood States (POMS): Total Mood Disturbance (TMD)Period BD (n=53, 54)1.04 scores on a scaleStandard Error 0.39
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo.95% CI: [-0.33, 1.77]
Comparison: Period AC: Difference varenicline versus placebo.95% CI: [-0.5, 1.43]
Comparison: Period AD: Difference varenicline versus placebo.95% CI: [-0.27, 2.11]
Comparison: Period AE: Difference varenicline versus placebo.95% CI: [-0.52, 1.53]
Comparison: Period BC: Difference varenicline versus placebo.95% CI: [-1.35, 0.5]
Comparison: Period BD: Difference varenicline versus placebo.95% CI: [-1.18, 1.24]
Comparison: Period BE: Difference varenicline versus placebo.95% CI: [-1.37, 0.63]
Primary

Change From Baseline in the Profile of Mood States (POMS): Vigor Subscale

POMS Vigor subscale data were responses to 8 items regarding 'How you feel right now?' on a scale of 0=not at all, 1=a little, 2=moderately, 3=quite a bit, and 4=extremely. Summary results (subscale scores) were presented as transformed T-scores ranging from 30 (less disturbance) to 80 (more disturbance).

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
VareniclineChange From Baseline in the Profile of Mood States (POMS): Vigor SubscalePeriod AD (n=55, 55)-3.30 scores on a scaleStandard Error 1.18
VareniclineChange From Baseline in the Profile of Mood States (POMS): Vigor SubscalePeriod BC (n=53, 54)-1.49 scores on a scaleStandard Error 0.81
VareniclineChange From Baseline in the Profile of Mood States (POMS): Vigor SubscalePeriod AC (n=55, 55)-1.34 scores on a scaleStandard Error 0.87
VareniclineChange From Baseline in the Profile of Mood States (POMS): Vigor SubscalePeriod BD (n=53, 54)-3.22 scores on a scaleStandard Error 1.25
VareniclineChange From Baseline in the Profile of Mood States (POMS): Vigor SubscalePeriod AE (n=55, 55)-2.80 scores on a scaleStandard Error 1
VareniclineChange From Baseline in the Profile of Mood States (POMS): Vigor SubscalePeriod BE (n=54, 54)-2.28 scores on a scaleStandard Error 1.02
VareniclineChange From Baseline in the Profile of Mood States (POMS): Vigor SubscalePeriod AB (n=55, 55)0.16 scores on a scaleStandard Error 0.86
PlaceboChange From Baseline in the Profile of Mood States (POMS): Vigor SubscalePeriod BE (n=54, 54)-3.37 scores on a scaleStandard Error 1.04
PlaceboChange From Baseline in the Profile of Mood States (POMS): Vigor SubscalePeriod AB (n=55, 55)0.98 scores on a scaleStandard Error 0.75
PlaceboChange From Baseline in the Profile of Mood States (POMS): Vigor SubscalePeriod AC (n=55, 55)-1.15 scores on a scaleStandard Error 0.75
PlaceboChange From Baseline in the Profile of Mood States (POMS): Vigor SubscalePeriod AD (n=55, 55)-1.14 scores on a scaleStandard Error 0.97
PlaceboChange From Baseline in the Profile of Mood States (POMS): Vigor SubscalePeriod AE (n=55, 55)-1.82 scores on a scaleStandard Error 0.91
PlaceboChange From Baseline in the Profile of Mood States (POMS): Vigor SubscalePeriod BC (n=53, 54)-3.44 scores on a scaleStandard Error 0.83
PlaceboChange From Baseline in the Profile of Mood States (POMS): Vigor SubscalePeriod BD (n=53, 54)-3.22 scores on a scaleStandard Error 1.11
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo.95% CI: [-3.07, 1.43]
Comparison: Period AC: Difference varenicline versus placebo.95% CI: [-2.47, 2.08]
Comparison: Period AD: Difference varenicline versus placebo.95% CI: [-5.19, 0.89]
Comparison: Period AE: Difference varenicline versus placebo.95% CI: [-3.67, 1.7]
Comparison: Period BC: Difference varenicline versus placebo.95% CI: [-0.36, 4.26]
Comparison: Period BD: Difference varenicline versus placebo.95% CI: [-3.32, 3.3]
Comparison: Period BE: Difference varenicline versus placebo.95% CI: [-1.8, 3.97]
Primary

Change From Baseline in the Social Dysfunction and Aggression Scale (SDAS): Total Score

The SDAS contains 11 items with 5 possible responses: 0=not present, 1=doubtful or very mild, 2=mild to moderate, 3=severe, and 4=extremely severe. The SDAS was collected 3 times a day during the inpatient abstinence period (BC). Total scores ranged from 0 (not present) to 44 (extremely severe).

Time frame: Baseline B (Week 2) to Week 4 (Period BC)

Population: No change from baseline analysis was performed on the SDAS total score as the majority of observations were recorded as 0.

Secondary

Change From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Increased Appetite Subscale

The MNWS increased appetite subscale contains 1 item (increased appetite) rated from 0 to 4 where 0=not at all, 1=slight, 2=moderate, 3=quite a bit, and 4=extreme. Scores ranged from 0 (no increased appetite) to 4 (extreme increased appetite).

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Increased Appetite SubscalePeriod AD (n=54, 54)0.11 scores on a scaleStandard Error 0.09
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Increased Appetite SubscalePeriod BC (n=53, 54)-0.03 scores on a scaleStandard Error 0.07
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Increased Appetite SubscalePeriod AC (n=54, 54)0.10 scores on a scaleStandard Error 0.05
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Increased Appetite SubscalePeriod BD (n=53, 54)-0.01 scores on a scaleStandard Error 0.09
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Increased Appetite SubscalePeriod AE (n=55, 54)-0.00 scores on a scaleStandard Error 0.05
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Increased Appetite SubscalePeriod BE (n=53, 54)-0.10 scores on a scaleStandard Error 0.04
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Increased Appetite SubscalePeriod AB (n=54, 54)0.14 scores on a scaleStandard Error 0.07
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Increased Appetite SubscalePeriod BE (n=53, 54)-0.03 scores on a scaleStandard Error 0.06
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Increased Appetite SubscalePeriod AB (n=54, 54)0.02 scores on a scaleStandard Error 0.05
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Increased Appetite SubscalePeriod AC (n=54, 54)0.12 scores on a scaleStandard Error 0.06
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Increased Appetite SubscalePeriod AD (n=54, 54)0.15 scores on a scaleStandard Error 0.09
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Increased Appetite SubscalePeriod AE (n=55, 54)0.04 scores on a scaleStandard Error 0.06
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Increased Appetite SubscalePeriod BC (n=53, 54)0.16 scores on a scaleStandard Error 0.08
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Increased Appetite SubscalePeriod BD (n=53, 54)0.15 scores on a scaleStandard Error 0.1
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo.95% CI: [-0.05, 0.28]
Comparison: Period AC: Difference varenicline versus placebo.95% CI: [-0.19, 0.14]
Comparison: Period AD: Difference varenicline versus placebo.95% CI: [-0.29, 0.22]
Comparison: Period AE: Difference varenicline versus placebo.95% CI: [-0.2, 0.13]
Comparison: Period BC: Difference varenicline versus placebo.95% CI: [-0.4, 0.01]
Comparison: Period BD: Difference varenicline versus placebo.95% CI: [-0.42, 0.1]
Comparison: Period BE: Difference varenicline versus placebo.95% CI: [-0.22, 8]
Secondary

Change From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Insomnia Domain Subscale

The MNWS insomnia domain subscale contains 2 items (difficulty going to sleep; difficulty staying asleep). Each item was rated from 0 to 4 where 0=not at all, 1=slight, 2=moderate, 3=quite a bit, and 4=extreme. Scores were the average of the 2 items and ranged from 0 (no insomnia) to 4 (extreme insomnia).

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Insomnia Domain SubscalePeriod AD (n=54, 54)0.04 scores on a scaleStandard Error 0.03
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Insomnia Domain SubscalePeriod BC (n=53, 54)0.14 scores on a scaleStandard Error 0.07
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Insomnia Domain SubscalePeriod AC (n=54, 54)0.15 scores on a scaleStandard Error 0.04
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Insomnia Domain SubscalePeriod BD (n=53, 54)-0.04 scores on a scaleStandard Error 0.05
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Insomnia Domain SubscalePeriod AE (n=55, 54)0.06 scores on a scaleStandard Error 0.02
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Insomnia Domain SubscalePeriod BE (n=53, 54)-0.06 scores on a scaleStandard Error 0.02
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Insomnia Domain SubscalePeriod AB (n=54, 54)0.07 scores on a scaleStandard Error 0.04
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Insomnia Domain SubscalePeriod BE (n=53, 54)-0.01 scores on a scaleStandard Error 0.06
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Insomnia Domain SubscalePeriod AB (n=54, 54)0.12 scores on a scaleStandard Error 0.06
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Insomnia Domain SubscalePeriod AC (n=54, 54)0.17 scores on a scaleStandard Error 0.05
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Insomnia Domain SubscalePeriod AD (n=54, 54)0.10 scores on a scaleStandard Error 0.04
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Insomnia Domain SubscalePeriod AE (n=55, 54)0.13 scores on a scaleStandard Error 0.06
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Insomnia Domain SubscalePeriod BC (n=53, 54)0.09 scores on a scaleStandard Error 0.08
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Insomnia Domain SubscalePeriod BD (n=53, 54)0.01 scores on a scaleStandard Error 0.06
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo.95% CI: [-0.2, 0.09]
Comparison: Period AC: Difference varenicline versus placebo.95% CI: [-0.15, 0.12]
Comparison: Period AD: Difference varenicline versus placebo.95% CI: [-0.15, 0.04]
Comparison: Period AE: Difference varenicline versus placebo.95% CI: [-0.2, 0.04]
Comparison: Period BC: Difference varenicline versus placebo.95% CI: [-0.17, 0.27]
Comparison: Period BD: Difference varenicline versus placebo.95% CI: [-0.21, 0.1]
Comparison: Period BE: Difference varenicline versus placebo.95% CI: [-0.17, 0.07]
Secondary

Change From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Negative Affect Domain Subscale

The MNWS negative affect domain subscale contains 4 items (depressed mood; irritability, frustration, or anger; anxiety; difficulty concentrating). Each item was rated from 0 to 4 where 0=not at all, 1=slight, 2=moderate, 3=quite a bit, and 4=extreme. Scores were the average from all 4 items and ranged from 0 (no negative affect) to 4 (extreme negative affect).

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Negative Affect Domain SubscalePeriod AD (n=54, 54)0.07 scores on a scaleStandard Error 0.03
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Negative Affect Domain SubscalePeriod BC (n=53, 54)0.07 scores on a scaleStandard Error 0.05
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Negative Affect Domain SubscalePeriod AC (n=54, 54)0.10 scores on a scaleStandard Error 0.03
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Negative Affect Domain SubscalePeriod BD (n=53, 54)-0.01 scores on a scaleStandard Error 0.03
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Negative Affect Domain SubscalePeriod AE (n=55, 54)0.05 scores on a scaleStandard Error 0.02
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Negative Affect Domain SubscalePeriod BE (n=53, 54)-0.02 scores on a scaleStandard Error 0.02
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Negative Affect Domain SubscalePeriod AB (n=54, 54)0.06 scores on a scaleStandard Error 0.03
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Negative Affect Domain SubscalePeriod BE (n=53, 54)0.03 scores on a scaleStandard Error 0.03
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Negative Affect Domain SubscalePeriod AB (n=54, 54)0.01 scores on a scaleStandard Error 0.02
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Negative Affect Domain SubscalePeriod AC (n=54, 54)0.09 scores on a scaleStandard Error 0.03
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Negative Affect Domain SubscalePeriod AD (n=54, 54)0.03 scores on a scaleStandard Error 0.03
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Negative Affect Domain SubscalePeriod AE (n=55, 54)0.07 scores on a scaleStandard Error 0.03
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Negative Affect Domain SubscalePeriod BC (n=53, 54)0.15 scores on a scaleStandard Error 0.05
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Negative Affect Domain SubscalePeriod BD (n=53, 54)0.02 scores on a scaleStandard Error 0.05
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo.95% CI: [-0.03, 0.12]
Comparison: Period AC: Difference varenicline versus placebo.95% CI: [-0.08, 0.09]
Comparison: Period AD: Difference varenicline versus placebo.95% CI: [-0.04, 0.11]
Comparison: Period AE: Difference varenicline versus placebo.95% CI: [-0.08, 0.05]
Comparison: Period BC: Difference varenicline versus placebo.95% CI: [-0.22, 0.06]
Comparison: Period BD: Difference varenicline versus placebo.95% CI: [-0.14, 0.09]
Comparison: Period BE: Difference varenicline versus placebo.95% CI: [-0.11, 0.02]
Secondary

Change From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Restlessness Subscale

The MNWS restlessness subscale contains 1 item (restlessness) rated from 0 to 4 where 0=not at all, 1=slight, 2=moderate, 3=quite a bit, and 4=extreme. Scores ranged from 0 (no restlessness) to 4 (extreme restlessness).

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Restlessness SubscalePeriod AD (n=54, 54)0.09 scores on a scaleStandard Error 0.04
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Restlessness SubscalePeriod BC (n=53, 54)0.07 scores on a scaleStandard Error 0.05
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Restlessness SubscalePeriod AC (n=54, 54)0.10 scores on a scaleStandard Error 0.04
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Restlessness SubscalePeriod BD (n=53, 54)0.03 scores on a scaleStandard Error 0.02
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Restlessness SubscalePeriod AE (n=55, 54)0.03 scores on a scaleStandard Error 0.02
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Restlessness SubscalePeriod BE (n=53, 54)-0.04 scores on a scaleStandard Error 0.02
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Restlessness SubscalePeriod AB (n=54, 54)0.06 scores on a scaleStandard Error 0.04
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Restlessness SubscalePeriod BE (n=53, 54)-0.03 scores on a scaleStandard Error 0.03
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Restlessness SubscalePeriod AB (n=54, 54)0.08 scores on a scaleStandard Error 0.04
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Restlessness SubscalePeriod AC (n=54, 54)0.11 scores on a scaleStandard Error 0.04
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Restlessness SubscalePeriod AD (n=54, 54)0.04 scores on a scaleStandard Error 0.03
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Restlessness SubscalePeriod AE (n=55, 54)0.05 scores on a scaleStandard Error 0.03
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Restlessness SubscalePeriod BC (n=53, 54)0.08 scores on a scaleStandard Error 0.05
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Restlessness SubscalePeriod BD (n=53, 54)-0.03 scores on a scaleStandard Error 0.01
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo.95% CI: [-0.12, 0.08]
Comparison: Period AC: Difference varenicline versus placebo.95% CI: [-0.12, 0.08]
Comparison: Period AD: Difference varenicline versus placebo.95% CI: [-0.04, 0.14]
Comparison: Period AE: Difference varenicline versus placebo.95% CI: [-0.07, 0.04]
Comparison: Period BC: Difference varenicline versus placebo.95% CI: [-0.15, 0.13]
Comparison: Period BD: Difference varenicline versus placebo.95% CI: [0.01, 0.1]
Comparison: Period BE: Difference varenicline versus placebo.95% CI: [-0.08, 0.04]
Secondary

Change From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Total Score

The MNWS total score contains 9 items (urge to smoke; depressed mood; irritability, frustration, or anger; anxiety; difficulty concentrating; restlessness; increased appetite; difficulty going to sleep; difficulty staying asleep). Each item was rated from 0 to 4 where 0=not at all, 1=slight, 2=moderate, 3=quite a bit, and 4=extreme. Total scores were the average score for all 9 items and ranged from 0 (no withdrawal symptoms) to 4 (extreme withdrawal symptoms).

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Total ScorePeriod AD (n=54, 54)0.07 scores on a scaleStandard Error 0.03
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Total ScorePeriod BC (n=53, 54)-0.04 scores on a scaleStandard Error 0.04
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Total ScorePeriod AC (n=54, 54)0.10 scores on a scaleStandard Error 0.03
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Total ScorePeriod BD (n=53, 54)-0.08 scores on a scaleStandard Error 0.03
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Total ScorePeriod AE (n=55, 54)-0.01 scores on a scaleStandard Error 0.02
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Total ScorePeriod BE (n=53, 54)-0.15 scores on a scaleStandard Error 0.01
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Total ScorePeriod AB (n=54, 54)0.13 scores on a scaleStandard Error 0.04
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Total ScorePeriod BE (n=53, 54)-0.05 scores on a scaleStandard Error 0.03
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Total ScorePeriod AB (n=54, 54)0.05 scores on a scaleStandard Error 0.04
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Total ScorePeriod AC (n=54, 54)0.11 scores on a scaleStandard Error 0.03
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Total ScorePeriod AD (n=54, 54)0.05 scores on a scaleStandard Error 0.03
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Total ScorePeriod AE (n=55, 54)0.04 scores on a scaleStandard Error 0.03
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Total ScorePeriod BC (n=53, 54)0.10 scores on a scaleStandard Error 0.06
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Total ScorePeriod BD (n=53, 54)0.02 scores on a scaleStandard Error 0.04
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo.95% CI: [-0.04, 0.19]
Comparison: Period AC: Difference varenicline versus placebo.95% CI: [-0.11, 0.08]
Comparison: Period AD: Difference varenicline versus placebo.95% CI: [-0.06, 0.09]
Comparison: Period AE: Difference varenicline versus placebo.95% CI: [-0.11, 0.02]
Comparison: Period BC: Difference varenicline versus placebo.95% CI: [-0.27, -0.01]
Comparison: Period BD: Difference varenicline versus placebo.95% CI: [-0.21, 0.01]
Comparison: Period BE: Difference varenicline versus placebo.95% CI: [-0.17, -0.03]
Secondary

Change From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Urge to Smoke Subscale

The MNWS urge to smoke subscale contains 1 item (urge to smoke) rated from 0 to 4 where 0=not at all, 1=slight, 2=moderate, 3=quite a bit, and 4=extreme. Scores ranged from 0 (no urge to smoke) to 4 (extreme urge to smoke).

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Urge to Smoke SubscalePeriod AD (n=54, 54)-2.17 scores on a scaleStandard Error 0.12
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Urge to Smoke SubscalePeriod BC (n=53, 54)-1.59 scores on a scaleStandard Error 0.12
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Urge to Smoke SubscalePeriod AC (n=54, 54)-1.40 scores on a scaleStandard Error 0.09
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Urge to Smoke SubscalePeriod BD (n=53, 54)-1.66 scores on a scaleStandard Error 0.14
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Urge to Smoke SubscalePeriod AE (n=55, 54)-1.90 scores on a scaleStandard Error 0.09
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Urge to Smoke SubscalePeriod BE (n=53, 54)-1.56 scores on a scaleStandard Error 0.1
VareniclineChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Urge to Smoke SubscalePeriod AB (n=54, 54)-0.60 scores on a scaleStandard Error 0.1
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Urge to Smoke SubscalePeriod BE (n=53, 54)-1.29 scores on a scaleStandard Error 0.11
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Urge to Smoke SubscalePeriod AB (n=54, 54)-0.29 scores on a scaleStandard Error 0.09
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Urge to Smoke SubscalePeriod AC (n=54, 54)-0.97 scores on a scaleStandard Error 0.09
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Urge to Smoke SubscalePeriod AD (n=54, 54)-2.03 scores on a scaleStandard Error 0.12
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Urge to Smoke SubscalePeriod AE (n=55, 54)-1.55 scores on a scaleStandard Error 0.09
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Urge to Smoke SubscalePeriod BC (n=53, 54)-1.14 scores on a scaleStandard Error 0.14
PlaceboChange From Baseline in the Minnesota Nicotine Withdrawal Scale (MNWS): Urge to Smoke SubscalePeriod BD (n=53, 54)-1.58 scores on a scaleStandard Error 0.15
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo.95% CI: [-0.58, -0.02]
Comparison: Period AC: Difference varenicline versus placebo.95% CI: [-0.69, -0.19]
Comparison: Period AD: Difference varenicline versus placebo.95% CI: [-0.47, 0.2]
Comparison: Period AE: Difference varenicline versus placebo.95% CI: [-0.61, -0.09]
Comparison: Period BC: Difference varenicline versus placebo.95% CI: [-0.83, -0.07]
Comparison: Period BD: Difference varenicline versus placebo.95% CI: [-0.5, 0.34]
Comparison: Period BE: Difference varenicline versus placebo.95% CI: [-0.57, 0.02]
Secondary

Change From Baseline in the Number of Cigarettes Smoked Per Day

Time frame: Baseline (Week 0) to Week 2

Population: FAS; (n)=number of subjects with at least 1 dose of study drug and an observation for a given day.

ArmMeasureGroupValue (MEAN)Dispersion
VareniclineChange From Baseline in the Number of Cigarettes Smoked Per DayDay 2 (n=55, 54)-0.1 cigarettes smoked per dayStandard Deviation 3.6
VareniclineChange From Baseline in the Number of Cigarettes Smoked Per DayDay 3 (n=55, 54)-0.6 cigarettes smoked per dayStandard Deviation 4.1
VareniclineChange From Baseline in the Number of Cigarettes Smoked Per DayDay 4 (n=55, 54)-1.8 cigarettes smoked per dayStandard Deviation 5
VareniclineChange From Baseline in the Number of Cigarettes Smoked Per DayDay 5 (n=55, 54)-1.0 cigarettes smoked per dayStandard Deviation 5.2
VareniclineChange From Baseline in the Number of Cigarettes Smoked Per DayDay 6 (n=54, 54)-1.3 cigarettes smoked per dayStandard Deviation 5.9
VareniclineChange From Baseline in the Number of Cigarettes Smoked Per DayDay 7 (n=54, 54)-1.8 cigarettes smoked per dayStandard Deviation 4.9
VareniclineChange From Baseline in the Number of Cigarettes Smoked Per DayDay 8 (n=54, 54)-1.7 cigarettes smoked per dayStandard Deviation 5
VareniclineChange From Baseline in the Number of Cigarettes Smoked Per DayDay 9 (n=52, 54)-1.0 cigarettes smoked per dayStandard Deviation 5.1
VareniclineChange From Baseline in the Number of Cigarettes Smoked Per DayDay 10 (n=52, 54)-1.7 cigarettes smoked per dayStandard Deviation 5.7
VareniclineChange From Baseline in the Number of Cigarettes Smoked Per DayDay 11 (n=53, 54)-1.8 cigarettes smoked per dayStandard Deviation 5.3
VareniclineChange From Baseline in the Number of Cigarettes Smoked Per DayDay 12 (n=53, 54)-0.7 cigarettes smoked per dayStandard Deviation 6.6
VareniclineChange From Baseline in the Number of Cigarettes Smoked Per DayDay 13 (n=53, 54)-1.4 cigarettes smoked per dayStandard Deviation 5.6
VareniclineChange From Baseline in the Number of Cigarettes Smoked Per DayDay 14 (n=36, 38)-17.2 cigarettes smoked per dayStandard Deviation 8.6
PlaceboChange From Baseline in the Number of Cigarettes Smoked Per DayDay 12 (n=53, 54)-0.2 cigarettes smoked per dayStandard Deviation 6.3
PlaceboChange From Baseline in the Number of Cigarettes Smoked Per DayDay 9 (n=52, 54)0.1 cigarettes smoked per dayStandard Deviation 4.2
PlaceboChange From Baseline in the Number of Cigarettes Smoked Per DayDay 3 (n=55, 54)0.0 cigarettes smoked per dayStandard Deviation 3.9
PlaceboChange From Baseline in the Number of Cigarettes Smoked Per DayDay 14 (n=36, 38)-15.7 cigarettes smoked per dayStandard Deviation 6.6
PlaceboChange From Baseline in the Number of Cigarettes Smoked Per DayDay 4 (n=55, 54)-0.3 cigarettes smoked per dayStandard Deviation 3.7
PlaceboChange From Baseline in the Number of Cigarettes Smoked Per DayDay 10 (n=52, 54)-0.4 cigarettes smoked per dayStandard Deviation 6.1
PlaceboChange From Baseline in the Number of Cigarettes Smoked Per DayDay 5 (n=55, 54)-0.4 cigarettes smoked per dayStandard Deviation 4
PlaceboChange From Baseline in the Number of Cigarettes Smoked Per DayDay 13 (n=53, 54)-0.1 cigarettes smoked per dayStandard Deviation 6.1
PlaceboChange From Baseline in the Number of Cigarettes Smoked Per DayDay 6 (n=54, 54)0.1 cigarettes smoked per dayStandard Deviation 4.5
PlaceboChange From Baseline in the Number of Cigarettes Smoked Per DayDay 11 (n=53, 54)-0.4 cigarettes smoked per dayStandard Deviation 6.3
PlaceboChange From Baseline in the Number of Cigarettes Smoked Per DayDay 7 (n=54, 54)-0.3 cigarettes smoked per dayStandard Deviation 5
PlaceboChange From Baseline in the Number of Cigarettes Smoked Per DayDay 2 (n=55, 54)-0.2 cigarettes smoked per dayStandard Deviation 3.7
PlaceboChange From Baseline in the Number of Cigarettes Smoked Per DayDay 8 (n=54, 54)0.4 cigarettes smoked per dayStandard Deviation 4.3
Secondary

Number of Participants Exceeding Thresholds for the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total Score

The BIS-11 is designed to assess general impulsiveness taking into account the multifactorial nature of the construct. Total score ranged from 30 (less impulsive) to 120 (more impulsive). Participants exceeding the threshold had a BIS-11 total score more than or equal to 70 out of 120. BIS-11 total scores of more than or equal to 70 could reflect clinically important and potentially pathological impulsivity.

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (NUMBER)
VareniclineNumber of Participants Exceeding Thresholds for the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod AD (n=54, 54)1 participants
VareniclineNumber of Participants Exceeding Thresholds for the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod BC (n=53, 54)1 participants
VareniclineNumber of Participants Exceeding Thresholds for the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod AC (n=54, 54)1 participants
VareniclineNumber of Participants Exceeding Thresholds for the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod BD (n=53, 54)1 participants
VareniclineNumber of Participants Exceeding Thresholds for the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod AE (n=55, 54)5 participants
VareniclineNumber of Participants Exceeding Thresholds for the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod BE (n=54, 54)5 participants
VareniclineNumber of Participants Exceeding Thresholds for the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod AB (n=54, 54)1 participants
PlaceboNumber of Participants Exceeding Thresholds for the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod BE (n=54, 54)5 participants
PlaceboNumber of Participants Exceeding Thresholds for the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod AB (n=54, 54)0 participants
PlaceboNumber of Participants Exceeding Thresholds for the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod AC (n=54, 54)2 participants
PlaceboNumber of Participants Exceeding Thresholds for the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod AD (n=54, 54)2 participants
PlaceboNumber of Participants Exceeding Thresholds for the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod AE (n=55, 54)5 participants
PlaceboNumber of Participants Exceeding Thresholds for the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod BC (n=53, 54)2 participants
PlaceboNumber of Participants Exceeding Thresholds for the Barratt Impulsiveness Scale - Version 11 (BIS-11): Total ScorePeriod BD (n=53, 54)2 participants
Comparison: There was no hypothesis testing or power calculation in this study. Period AC: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0, 5.6]
Comparison: Period AD: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0, 5.6]
Comparison: Period AE: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.3, 3.6]
Comparison: Period BC: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0, 5.7]
Comparison: Period BD: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0, 5.7]
Comparison: Period BE: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.3, 3.7]
Secondary

Number of Participants Exceeding Thresholds for the Hamilton Anxiety Scale (HAM-A): Total Score

HAM-A measures treatment-related changes in generalized anxiety symptoms. Total scores ranged from 0 (not affected) to 56 (very severely affected). Participants exceeding the threshold had a HAM-A total score of more than or equal to 14 out of 56. HAM-A total scores of more than or equal to 14 may reflect clinically noteworthy levels of anxiety.

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (NUMBER)
VareniclineNumber of Participants Exceeding Thresholds for the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod AD (n=54, 54)12 participants
VareniclineNumber of Participants Exceeding Thresholds for the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod BC (n=53, 54)9 participants
VareniclineNumber of Participants Exceeding Thresholds for the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod AC (n=54, 54)9 participants
VareniclineNumber of Participants Exceeding Thresholds for the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod BD (n=53, 54)12 participants
VareniclineNumber of Participants Exceeding Thresholds for the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod AE (n=55, 54)16 participants
VareniclineNumber of Participants Exceeding Thresholds for the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod BE (n=54, 54)16 participants
VareniclineNumber of Participants Exceeding Thresholds for the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod AB (n=54, 54)0 participants
PlaceboNumber of Participants Exceeding Thresholds for the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod BE (n=54, 54)9 participants
PlaceboNumber of Participants Exceeding Thresholds for the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod AB (n=54, 54)2 participants
PlaceboNumber of Participants Exceeding Thresholds for the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod AC (n=54, 54)7 participants
PlaceboNumber of Participants Exceeding Thresholds for the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod AD (n=54, 54)7 participants
PlaceboNumber of Participants Exceeding Thresholds for the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod AE (n=55, 54)10 participants
PlaceboNumber of Participants Exceeding Thresholds for the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod BC (n=53, 54)6 participants
PlaceboNumber of Participants Exceeding Thresholds for the Hamilton Anxiety Scale (HAM-A): Total ScorePeriod BD (n=53, 54)6 participants
Comparison: Period AC: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.5, 3.9]
Comparison: Period AD: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.7, 5.3]
Comparison: Period AE: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.7, 4.4]
Comparison: Period BC: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.5, 5]
Comparison: Period BD: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.8, 6.8]
Comparison: Period BE: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.8, 5.3]
Secondary

Number of Participants Exceeding Thresholds for the Montgomery-Asberg Depression Rating Scale (MADRS): Total Score

The MADRS measures the overall severity of depressive symptoms. Total score ranged from 0 (low severity of depressive symptoms) to 60 (high severity of depressive symptoms). Participants exceeding the threshold had a MADRS total score of more than 14 out of 60. MADRS total scores exceeding 14 may represent clinically notable effective symptomatology.

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively. Statistical analyses were not performed for Period AB due to the small number of participants exceeding the threshold.

ArmMeasureGroupValue (NUMBER)
VareniclineNumber of Participants Exceeding Thresholds for the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod AD (n=54, 54)8 participants
VareniclineNumber of Participants Exceeding Thresholds for the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod BC (n=53, 54)5 participants
VareniclineNumber of Participants Exceeding Thresholds for the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod AC (n=54, 54)7 participants
VareniclineNumber of Participants Exceeding Thresholds for the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod BD (n=53, 54)6 participants
VareniclineNumber of Participants Exceeding Thresholds for the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod AE (n=55, 54)11 participants
VareniclineNumber of Participants Exceeding Thresholds for the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod BE (n=54, 54)9 participants
VareniclineNumber of Participants Exceeding Thresholds for the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod AB (n=54, 54)2 participants
PlaceboNumber of Participants Exceeding Thresholds for the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod BE (n=54, 54)8 participants
PlaceboNumber of Participants Exceeding Thresholds for the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod AB (n=54, 54)0 participants
PlaceboNumber of Participants Exceeding Thresholds for the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod AC (n=54, 54)3 participants
PlaceboNumber of Participants Exceeding Thresholds for the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod AD (n=54, 54)3 participants
PlaceboNumber of Participants Exceeding Thresholds for the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod AE (n=55, 54)8 participants
PlaceboNumber of Participants Exceeding Thresholds for the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod BC (n=53, 54)3 participants
PlaceboNumber of Participants Exceeding Thresholds for the Montgomery-Asberg Depression Rating Scale (MADRS): Total ScorePeriod BD (n=53, 54)3 participants
Comparison: There was no hypothesis testing or power calculation in this study. Period AC: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.6, 10.4]
Comparison: Period AD: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.7, 11.8]
Comparison: Period AE: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.5, 3.9]
Comparison: Period BC: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.4, 7.8]
Comparison: Period BD: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.5, 9.2]
Comparison: Period BE: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.4, 3.2]
Secondary

Number of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Agression Total Score

The OAS-m contains 3 scales: Aggression, Irritability, and Suicidality. Aggression total score ranged from 0 (no aggression) to any number with no upper limit depending on the frequency of agressive behaviour in a week. Participants exceeding the threshold had an OAS-m Aggression total score of more than or equal to 3 out of any number with no upper limit depending on the frequency of agressive behaviour in a week. OAS-m Aggression total scores of more than or equal to 3 reflect clinically important aggression.

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (NUMBER)
VareniclineNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Agression Total ScorePeriod AB (n=54, 54)9 participants
VareniclineNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Agression Total ScorePeriod AC (n=54, 54)20 participants
VareniclineNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Agression Total ScorePeriod AD (n=54, 54)21 participants
VareniclineNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Agression Total ScorePeriod AE (n=55, 54)28 participants
VareniclineNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Agression Total ScorePeriod BC (n=53, 54)15 participants
VareniclineNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Agression Total ScorePeriod BD (n=53, 54)18 participants
VareniclineNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Agression Total ScorePeriod BE (n=54, 54)27 participants
PlaceboNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Agression Total ScorePeriod AB (n=54, 54)6 participants
PlaceboNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Agression Total ScorePeriod BC (n=53, 54)19 participants
PlaceboNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Agression Total ScorePeriod AC (n=54, 54)21 participants
PlaceboNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Agression Total ScorePeriod BE (n=54, 54)30 participants
PlaceboNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Agression Total ScorePeriod AD (n=54, 54)23 participants
PlaceboNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Agression Total ScorePeriod BD (n=53, 54)21 participants
PlaceboNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Agression Total ScorePeriod AE (n=55, 54)31 participants
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.5, 4.9]
Comparison: Period AC: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.4, 2]
Comparison: Period AD: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.4, 1.8]
Comparison: Period AE: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.4, 1.6]
Comparison: Period BC: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.3, 1.6]
Comparison: Period BD: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.4, 1.8]
Comparison: Period BE: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.4, 1.7]
Secondary

Number of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Irritability Total Score

The OAS-m contains 3 scales: Aggression, Irritability, and Suicidality. Irritability total score ranged from 0 (no irritability) to 10 (extreme irritability). Participants exceeding the threshold had an OAS-m Irritability total score of more than or equal to 2 out of 10. OAS-m Irritability total scores of more than or equal to 2 reflect clinically important irritability.

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (NUMBER)
VareniclineNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod AD (n=54, 54)36 participants
VareniclineNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod BC (n=53, 54)31 participants
VareniclineNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod AC (n=54, 54)32 participants
VareniclineNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod BD (n=53, 54)35 participants
VareniclineNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod AE (n=55, 54)41 participants
VareniclineNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod BE (n=54, 54)40 participants
VareniclineNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod AB (n=54, 54)10 participants
PlaceboNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod BE (n=54, 54)38 participants
PlaceboNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod AB (n=54, 54)11 participants
PlaceboNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod AC (n=54, 54)34 participants
PlaceboNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod AD (n=54, 54)36 participants
PlaceboNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod AE (n=55, 54)39 participants
PlaceboNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod BC (n=53, 54)31 participants
PlaceboNumber of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Irritability Total ScorePeriod BD (n=53, 54)33 participants
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.3, 2.3]
Comparison: Period AC: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.4, 1.9]
Comparison: Period AD: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.4, 2.2]
Comparison: Period AE: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.5, 2.6]
Comparison: Period BC: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.5, 2.3]
Comparison: Period BD: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.6, 2.7]
Comparison: Period BE: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.5, 2.8]
Secondary

Number of Participants Exceeding Thresholds for the Overt Aggression Scale (Modified) (OAS-m): Suicidality Total Score

The OAS-m contains 3 scales: Aggression, Irritability, and Suicidality. Suicidality total score ranged from 0 (no suicidal tendency) to 16 (extreme/very extreme suicidal tendency). No threshold criterion was determined for OAS-m Suicidality total score.

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: The number of participants above the threshold for the OAS-m Suicidality total score was not analyzed as the majority of observations were recorded as 0.

Secondary

Number of Participants Exceeding Thresholds for the Profile of Mood States (POMS): Total Score

POMS total mood disturbance (TMD) summary results were presented as transformed T-scores ranging from 30 (less disturbance) to 80 (more disturbance). Participants exceeding the threshold had an increase from baseline of 1 standard deviation of the TMD baseline T-score plus 1 or more.

Time frame: Baseline A (Week 0) to Week 2 (Period AB), Week 4 (Period AC), Week 12 or relapse (Period AD), and Week 12 (Period AE). Baseline B (Week 2) to Week 4 (Period BC), Week 12 or relapse (Period BD), and Week 12 (Period BE).

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (NUMBER)
VareniclineNumber of Participants Exceeding Thresholds for the Profile of Mood States (POMS): Total ScorePeriod AD (n=55, 55)37 participants
VareniclineNumber of Participants Exceeding Thresholds for the Profile of Mood States (POMS): Total ScorePeriod BC (n=53, 54)27 participants
VareniclineNumber of Participants Exceeding Thresholds for the Profile of Mood States (POMS): Total ScorePeriod AC (n=55, 55)32 participants
VareniclineNumber of Participants Exceeding Thresholds for the Profile of Mood States (POMS): Total ScorePeriod BD (n=53, 54)30 participants
VareniclineNumber of Participants Exceeding Thresholds for the Profile of Mood States (POMS): Total ScorePeriod AE (n=55, 55)38 participants
VareniclineNumber of Participants Exceeding Thresholds for the Profile of Mood States (POMS): Total ScorePeriod BE (n=54, 54)32 participants
VareniclineNumber of Participants Exceeding Thresholds for the Profile of Mood States (POMS): Total ScorePeriod AB (n=55, 55)14 participants
PlaceboNumber of Participants Exceeding Thresholds for the Profile of Mood States (POMS): Total ScorePeriod BE (n=54, 54)38 participants
PlaceboNumber of Participants Exceeding Thresholds for the Profile of Mood States (POMS): Total ScorePeriod AB (n=55, 55)11 participants
PlaceboNumber of Participants Exceeding Thresholds for the Profile of Mood States (POMS): Total ScorePeriod AC (n=55, 55)35 participants
PlaceboNumber of Participants Exceeding Thresholds for the Profile of Mood States (POMS): Total ScorePeriod AD (n=55, 55)38 participants
PlaceboNumber of Participants Exceeding Thresholds for the Profile of Mood States (POMS): Total ScorePeriod AE (n=55, 55)38 participants
PlaceboNumber of Participants Exceeding Thresholds for the Profile of Mood States (POMS): Total ScorePeriod BC (n=53, 54)33 participants
PlaceboNumber of Participants Exceeding Thresholds for the Profile of Mood States (POMS): Total ScorePeriod BD (n=53, 54)36 participants
Comparison: There was no hypothesis testing or power calculation in this study. Period AB: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.6, 3.3]
Comparison: Period AC: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.4, 1.7]
Comparison: Period AD: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.4, 2.1]
Comparison: Period AE: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.4, 2.2]
Comparison: Period BC: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.3, 1.4]
Comparison: Period BD: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.3, 1.4]
Comparison: Period BE: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.3, 1.4]
Secondary

Number of Participants Exceeding Thresholds for the Social Dysfunction and Aggression Scale (SDAS): Total Score

SDAS total scores ranged from 0 (not present) to 44 (extremely severe). Participants exceeding the threshold had a SDAS total score of more than 6 out of 44.

Time frame: Baseline B (Week 2) to Week 4 (Period BC)

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureValue (NUMBER)
VareniclineNumber of Participants Exceeding Thresholds for the Social Dysfunction and Aggression Scale (SDAS): Total Score2 participants
PlaceboNumber of Participants Exceeding Thresholds for the Social Dysfunction and Aggression Scale (SDAS): Total Score1 participants
Comparison: There was no hypothesis testing or power calculation in this study. Period BC: Difference varenicline versus placebo. Subjects' worst scores observed in a given period were compared with the threshold criterion for analysis.95% CI: [0.2, 23.6]
Secondary

Number of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)

Participants who reported no smoking and no use of other nicotine-containing products since the last study visit (during treatment) in the previous 7 days and who did not have carbon monoxide of more than 10 parts per million for that observation (if measured).

Time frame: Week 5 to Week 13

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureGroupValue (NUMBER)
VareniclineNumber of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 6 (n=55, 55)23 participants
VareniclineNumber of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 10 (n=55, 55)17 participants
VareniclineNumber of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 8 (n=55, 55)21 participants
VareniclineNumber of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 11 (n=55, 55)20 participants
VareniclineNumber of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 7 (n=55, 55)20 participants
VareniclineNumber of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 12 (n=55, 55)19 participants
VareniclineNumber of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 9 (n=55, 55)25 participants
VareniclineNumber of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 13 (n=55, 55)23 participants
VareniclineNumber of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 5 (n=55, 55)19 participants
PlaceboNumber of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 13 (n=55, 55)15 participants
PlaceboNumber of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 5 (n=55, 55)16 participants
PlaceboNumber of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 6 (n=55, 55)12 participants
PlaceboNumber of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 7 (n=55, 55)17 participants
PlaceboNumber of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 8 (n=55, 55)15 participants
PlaceboNumber of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 9 (n=55, 55)14 participants
PlaceboNumber of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 10 (n=55, 55)17 participants
PlaceboNumber of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 11 (n=55, 55)18 participants
PlaceboNumber of Participants With 7-day Point Prevalence of Abstinence (Smoking Cessation)Week 12 (n=55, 55)15 participants
Secondary

Number of Participants With Carbon Monoxide Confirmed Daily Smoking Cessation

Participants who reported no smoking and no use of other nicotine-containing products since the last study visit (on the Nicotine Use Inventory, which was used to collect the information of cigarette or other nicotine use during the study) and who did not have carbon monoxide of more than 10 parts per million at any time from Week 9 to Week 12

Time frame: Week 9 to Week 12

Population: FAS; (n)=number of subjects with data for analysis for varenicline and placebo, respectively.

ArmMeasureValue (NUMBER)
VareniclineNumber of Participants With Carbon Monoxide Confirmed Daily Smoking Cessation16 participants
PlaceboNumber of Participants With Carbon Monoxide Confirmed Daily Smoking Cessation10 participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026