Trial Outcomes & Findings for A Study of Cytisinicline for Smoking Cessation in Adult Smokers (NCT NCT04576949)

NCT ID: NCT04576949

Last Updated: 2026-01-15

Results Overview

Smoking abstinence as verified by weekly expired carbon monoxide (CO) measurements ≤10 parts per million (ppm).

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

810 participants

Primary outcome timeframe

Weeks 3 to 6

Results posted on

2026-01-15

Participant Flow

Participant milestones

Participant milestones
Measure
Placebo + Behavioral Support
one placebo tablet orally (PO) three times daily (TID) plus behavioral support for 12 weeks
6 Week Cytisinicline + 6 Week Placebo + Behavioral Support
one cytisinicline tablet PO TID plus behavioral support for 6 weeks followed by one placebo tablet PO TID plus behavioral support for 6 weeks
12 Week Cytisinicline + Behavioral Support
one cytisinicline tablet PO TID plus behavioral support for 12 weeks
Overall Study
STARTED
271
269
270
Overall Study
COMPLETED
194
199
225
Overall Study
NOT COMPLETED
77
70
45

Reasons for withdrawal

Reasons for withdrawal
Measure
Placebo + Behavioral Support
one placebo tablet orally (PO) three times daily (TID) plus behavioral support for 12 weeks
6 Week Cytisinicline + 6 Week Placebo + Behavioral Support
one cytisinicline tablet PO TID plus behavioral support for 6 weeks followed by one placebo tablet PO TID plus behavioral support for 6 weeks
12 Week Cytisinicline + Behavioral Support
one cytisinicline tablet PO TID plus behavioral support for 12 weeks
Overall Study
Adverse Event
1
3
2
Overall Study
Withdrawal by Subject
41
26
18
Overall Study
Physician Decision
3
0
0
Overall Study
Death
0
1
0
Overall Study
Lost to Follow-up
29
37
24
Overall Study
Other, Not Specified
2
3
1
Overall Study
Other
1
0
0

Baseline Characteristics

A Study of Cytisinicline for Smoking Cessation in Adult Smokers

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Placebo + Behavioral Support
n=271 Participants
one placebo tablet orally (PO) three times daily (TID) plus behavioral support for 12 weeks
6 Week Cytisinicline + 6 Week Placebo + Behavioral Support
n=269 Participants
one cytisinicline tablet PO TID plus behavioral support for 6 weeks followed by one placebo tablet PO TID plus behavioral support for 6 weeks
12 Week Cytisinicline + Behavioral Support
n=270 Participants
one cytisinicline tablet PO TID plus behavioral support for 12 weeks
Total
n=810 Participants
Total of all reporting groups
Age, Continuous
52.0 years
STANDARD_DEVIATION 11.96 • n=9 Participants
52.2 years
STANDARD_DEVIATION 11.15 • n=6 Participants
53.3 years
STANDARD_DEVIATION 11.55 • n=9 Participants
52.5 years
STANDARD_DEVIATION 11.56 • n=205 Participants
Sex: Female, Male
Female
159 Participants
n=9 Participants
148 Participants
n=6 Participants
135 Participants
n=9 Participants
442 Participants
n=205 Participants
Sex: Female, Male
Male
112 Participants
n=9 Participants
121 Participants
n=6 Participants
135 Participants
n=9 Participants
368 Participants
n=205 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
19 Participants
n=9 Participants
26 Participants
n=6 Participants
23 Participants
n=9 Participants
68 Participants
n=205 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
252 Participants
n=9 Participants
243 Participants
n=6 Participants
247 Participants
n=9 Participants
742 Participants
n=205 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=9 Participants
0 Participants
n=6 Participants
0 Participants
n=9 Participants
0 Participants
n=205 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
n=9 Participants
2 Participants
n=6 Participants
1 Participants
n=9 Participants
4 Participants
n=205 Participants
Race (NIH/OMB)
Asian
1 Participants
n=9 Participants
1 Participants
n=6 Participants
1 Participants
n=9 Participants
3 Participants
n=205 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
2 Participants
n=9 Participants
1 Participants
n=6 Participants
1 Participants
n=9 Participants
4 Participants
n=205 Participants
Race (NIH/OMB)
Black or African American
42 Participants
n=9 Participants
40 Participants
n=6 Participants
48 Participants
n=9 Participants
130 Participants
n=205 Participants
Race (NIH/OMB)
White
221 Participants
n=9 Participants
222 Participants
n=6 Participants
216 Participants
n=9 Participants
659 Participants
n=205 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=9 Participants
0 Participants
n=6 Participants
0 Participants
n=9 Participants
0 Participants
n=205 Participants
Race (NIH/OMB)
Unknown or Not Reported
4 Participants
n=9 Participants
3 Participants
n=6 Participants
3 Participants
n=9 Participants
10 Participants
n=205 Participants

PRIMARY outcome

Timeframe: Weeks 3 to 6

Population: All Randomized Set: all randomized participants. Placebo and 6-week treatment arms only.

Smoking abstinence as verified by weekly expired carbon monoxide (CO) measurements ≤10 parts per million (ppm).

Outcome measures

Outcome measures
Measure
Placebo + Behavioral Support
n=271 Participants
one placebo tablet orally (PO) three times daily (TID) plus behavioral support for 12 weeks
6 Week Cytisinicline + 6 Week Placebo + Behavioral Support
n=269 Participants
one cytisinicline tablet PO TID plus behavioral support for 6 weeks followed by one placebo tablet PO TID plus behavioral support for 6 weeks
Percentage of Participants With Smoking Abstinence From Weeks 3 to Week 6
4.4 percentage of participants
25.3 percentage of participants

PRIMARY outcome

Timeframe: Weeks 9 to 12

Population: All Randomized Set: all randomized participants. Placebo and 12-week treatment arms only.

Smoking abstinence as verified by weekly expired CO measurements ≤10 ppm.

Outcome measures

Outcome measures
Measure
Placebo + Behavioral Support
n=271 Participants
one placebo tablet orally (PO) three times daily (TID) plus behavioral support for 12 weeks
6 Week Cytisinicline + 6 Week Placebo + Behavioral Support
n=270 Participants
one cytisinicline tablet PO TID plus behavioral support for 6 weeks followed by one placebo tablet PO TID plus behavioral support for 6 weeks
Percentage of Participants With Smoking Abstinence From Weeks 9 to Week 12
7.0 percentage of participants
32.6 percentage of participants

SECONDARY outcome

Timeframe: Week 6 to Week 24

Population: All Randomized Set: all randomized participants. Placebo and 6-week treatment arms only.

Smoking abstinence as verified by expired CO measurements ≤10 ppm. Measurements were weekly from Week 6 to Week 12 and monthly from Week 12 to Week 16.

Outcome measures

Outcome measures
Measure
Placebo + Behavioral Support
n=271 Participants
one placebo tablet orally (PO) three times daily (TID) plus behavioral support for 12 weeks
6 Week Cytisinicline + 6 Week Placebo + Behavioral Support
n=269 Participants
one cytisinicline tablet PO TID plus behavioral support for 6 weeks followed by one placebo tablet PO TID plus behavioral support for 6 weeks
Percentage of Participants With Continuous Smoking Abstinence From Week 6 to Week 24
2.6 percentage of participants
8.9 percentage of participants

SECONDARY outcome

Timeframe: Week 12 to Week 24

Population: All Randomized Set: all randomized participants. Placebo and 12-week treatment arms only.

Smoking abstinence as verified by expired CO measurements ≤10 ppm. Measurements were monthly from Week 12 to Week 24.

Outcome measures

Outcome measures
Measure
Placebo + Behavioral Support
n=271 Participants
one placebo tablet orally (PO) three times daily (TID) plus behavioral support for 12 weeks
6 Week Cytisinicline + 6 Week Placebo + Behavioral Support
n=270 Participants
one cytisinicline tablet PO TID plus behavioral support for 6 weeks followed by one placebo tablet PO TID plus behavioral support for 6 weeks
Percentage of Participants With Continuous Smoking Abstinence From Week 12 to Week 24
4.8 percentage of participants
21.1 percentage of participants

SECONDARY outcome

Timeframe: Week 24

Population: All Randomized Set: all randomized participants. Participants in the cytisinicline arms.

Relapse is defined as participant reported resuming smoking or an expired CO measure ≥ 10ppm. Relapse is defined as a participant having met one of the following: not being abstinent from Weeks 3 to 6; not being abstinent at the Week 12 visit; not abstinent or not self-reported abstinent during the Week 16 to Week 24 follow-up period. (During the follow-up period (Weeks 16 - 24) up to a total of 5 cigarettes could have been smoked.)

Outcome measures

Outcome measures
Measure
Placebo + Behavioral Support
n=269 Participants
one placebo tablet orally (PO) three times daily (TID) plus behavioral support for 12 weeks
6 Week Cytisinicline + 6 Week Placebo + Behavioral Support
n=270 Participants
one cytisinicline tablet PO TID plus behavioral support for 6 weeks followed by one placebo tablet PO TID plus behavioral support for 6 weeks
Percentage of Participants Taking Cytisinicline Who Were Relapse-Free at Week 24
10.4 percentage of participants
13.3 percentage of participants

Adverse Events

Placebo + Behavioral Support

Serious events: 3 serious events
Other events: 98 other events
Deaths: 0 deaths

6 Week Cytisinicline + 6 Week Placebo + Behavioral Support

Serious events: 10 serious events
Other events: 114 other events
Deaths: 1 deaths

12 Week Cytisinicline + Behavioral Support

Serious events: 8 serious events
Other events: 118 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Placebo + Behavioral Support
n=270 participants at risk
one placebo tablet orally (PO) three times daily (TID) plus behavioral support for 12 weeks
6 Week Cytisinicline + 6 Week Placebo + Behavioral Support
n=269 participants at risk
one cytisinicline tablet PO TID plus behavioral support for 6 weeks followed by one placebo tablet PO TID plus behavioral support for 6 weeks
12 Week Cytisinicline + Behavioral Support
n=270 participants at risk
one cytisinicline tablet PO TID plus behavioral support for 12 weeks
Blood and lymphatic system disorders
Anaemia
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Cardiac disorders
Acute coronary syndrome
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Cardiac disorders
Acute myocardial infarction
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Cardiac disorders
Angina pectoris
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Cardiac disorders
Cardiac failure acute
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Cardiac disorders
Coronary artery dissection
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Cardiac disorders
Hypertensive heart disease
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Cardiac disorders
Myocardial infarction
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Gastrointestinal disorders
Gastrointestinal haemorrhage
0.37%
1/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Gastrointestinal disorders
Small intestinal obstruction
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Gastrointestinal disorders
Superior mesenteric artery syndrome
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
General disorders
Chest pain
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Hepatobiliary disorders
Cholecystitis
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Hepatobiliary disorders
Cholelithiasis
0.37%
1/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Immune system disorders
Hypersensitivity
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Infections and infestations
Cellulitis
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Infections and infestations
Pneumonia
0.37%
1/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Infections and infestations
Staphylococcal sepsis
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Injury, poisoning and procedural complications
Tibia fracture
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Metabolism and nutrition disorders
Diabetic ketoacidosis
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Metabolism and nutrition disorders
Hyponatraemic syndrome
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Musculoskeletal and connective tissue disorders
Spinal osteoarthritis
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Lung neoplasm malignant
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.74%
2/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Nervous system disorders
Subarachnoid haemorrhage
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Nervous system disorders
Transient global amnesia
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Respiratory, thoracic and mediastinal disorders
Pneumothorax
0.00%
0/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.00%
0/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.37%
1/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.

Other adverse events

Other adverse events
Measure
Placebo + Behavioral Support
n=270 participants at risk
one placebo tablet orally (PO) three times daily (TID) plus behavioral support for 12 weeks
6 Week Cytisinicline + 6 Week Placebo + Behavioral Support
n=269 participants at risk
one cytisinicline tablet PO TID plus behavioral support for 6 weeks followed by one placebo tablet PO TID plus behavioral support for 6 weeks
12 Week Cytisinicline + Behavioral Support
n=270 participants at risk
one cytisinicline tablet PO TID plus behavioral support for 12 weeks
Gastrointestinal disorders
Constipation
1.1%
3/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
5.9%
16/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
4.8%
13/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Gastrointestinal disorders
Diarrhoea
5.6%
15/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
3.7%
10/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
4.4%
12/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Gastrointestinal disorders
Dry mouth
1.1%
3/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
3.7%
10/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
2.2%
6/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Gastrointestinal disorders
Nausea
7.4%
20/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
5.9%
16/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
5.6%
15/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Gastrointestinal disorders
Vomiting
1.1%
3/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
1.1%
3/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
2.2%
6/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
General disorders
Fatigue
1.5%
4/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
3.3%
9/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
3.3%
9/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Infections and infestations
COVID-19
2.2%
6/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
2.2%
6/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
3.3%
9/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Infections and infestations
Sinusitis
2.6%
7/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
1.5%
4/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
1.1%
3/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Infections and infestations
Urinary tract infection
1.1%
3/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
0.74%
2/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
3.0%
8/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Investigations
Weight increased
1.1%
3/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
2.2%
6/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
3.3%
9/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Musculoskeletal and connective tissue disorders
Back pain
1.5%
4/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
2.6%
7/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
3.0%
8/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Nervous system disorders
Dizziness
1.9%
5/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
4.5%
12/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
2.2%
6/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Nervous system disorders
Headache
8.1%
22/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
6.7%
18/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
7.8%
21/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Psychiatric disorders
Abnormal dreams
3.0%
8/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
8.2%
22/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
7.8%
21/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Psychiatric disorders
Anxiety
1.9%
5/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
2.6%
7/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
5.6%
15/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Psychiatric disorders
Depression
1.1%
3/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
2.2%
6/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
1.1%
3/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Psychiatric disorders
Insomnia
4.8%
13/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
8.6%
23/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
9.6%
26/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Psychiatric disorders
Irritability
1.9%
5/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
3.0%
8/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
3.0%
8/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Psychiatric disorders
Sleep disorder
1.1%
3/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
2.2%
6/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
1.5%
4/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
Vascular disorders
Hypertension
1.5%
4/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
2.6%
7/269 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.
2.2%
6/270 • From randomization (all-cause mortality) or first dose of study drug (adverse events) through Week 24.
Safety Set: all randomized participants who take at least one dose of study drug. Treatment emergent adverse events: events that appear during treatment or are present before treatment and subsequently worsen.

Additional Information

Daniel Cain, Vice President, Clinical Research

Achieve Life Sciences

Phone: 425.686.1546

Results disclosure agreements

  • Principal investigator is a sponsor employee Principal Investigators are bound by requirements outlined in their individual clinical trial agreements with regard to publication of trial results.
  • Publication restrictions are in place

Restriction type: OTHER