Trial Outcomes & Findings for Spanish-Language Smoking Cessation Trial (NCT NCT02945787)

NCT ID: NCT02945787

Last Updated: 2022-11-04

Results Overview

Participants will complete follow-up assessment packets at 6 month intervals through 24 months. At each assessment point, investigators will calculate 7-day point- prevalence abstinence rates.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

1417 participants

Primary outcome timeframe

6 months

Results posted on

2022-11-04

Participant Flow

Participant milestones

Participant milestones
Measure
Extended Self-help
Spanish-Language Version of the Stop Smoking for Good: The Extended Self-help condition will comprise the 11 Stop Smoking for Good booklets and 9 supportive My Story pamphlets transcreated for Spanish speaking smokers. Spanish-Language Version of the Stop Smoking for Good: Participants in the first arm will receive the Spanish-language version of the Stop Smoking for Good (SS-SP) intervention distributed over 18 months.
Usual Care (UC)
NCI-Produced Spanish-language Self-help Booklet: The UC control condition enhances the external validity of the study by providing a comparison to an existing, credible intervention that a smoker could receive in a medical setting or elsewhere. NCI-Produced Spanish-language Self-help Booklet: Participants in the second arm will receive a single, credible, NCI-produced Spanish-language self-help booklet. Outcomes will be assessed through 24 months.
Overall Study
STARTED
714
703
Overall Study
COMPLETED
714
703
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Spanish-Language Smoking Cessation Trial

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Extended Self-help
n=714 Participants
Spanish-Language Version of the Stop Smoking for Good: The Extended Self-help condition will comprise the 11 Stop Smoking for Good booklets and 9 supportive My Story pamphlets transcreated for Spanish speaking smokers. Spanish-Language Version of the Stop Smoking for Good: Participants in the first arm will receive the Spanish-language version of the Stop Smoking for Good (SS-SP) intervention distributed over 18 months.
Usual Care (UC)
n=703 Participants
NCI-Produced Spanish-language Self-help Booklet: The UC control condition enhances the external validity of the study by providing a comparison to an existing, credible intervention that a smoker could receive in a medical setting or elsewhere. NCI-Produced Spanish-language Self-help Booklet: Participants in the second arm will receive a single, credible, NCI-produced Spanish-language self-help booklet. Outcomes will be assessed through 24 months.
Total
n=1417 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
648 Participants
n=5 Participants
643 Participants
n=7 Participants
1291 Participants
n=5 Participants
Age, Categorical
>=65 years
66 Participants
n=5 Participants
60 Participants
n=7 Participants
126 Participants
n=5 Participants
Sex: Female, Male
Female
346 Participants
n=5 Participants
339 Participants
n=7 Participants
685 Participants
n=5 Participants
Sex: Female, Male
Male
368 Participants
n=5 Participants
364 Participants
n=7 Participants
732 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
12 Participants
n=5 Participants
30 Participants
n=7 Participants
42 Participants
n=5 Participants
Race (NIH/OMB)
Asian
2 Participants
n=5 Participants
0 Participants
n=7 Participants
2 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
17 Participants
n=5 Participants
13 Participants
n=7 Participants
30 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
23 Participants
n=5 Participants
18 Participants
n=7 Participants
41 Participants
n=5 Participants
Race (NIH/OMB)
White
347 Participants
n=5 Participants
313 Participants
n=7 Participants
660 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
20 Participants
n=5 Participants
28 Participants
n=7 Participants
48 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
293 Participants
n=5 Participants
301 Participants
n=7 Participants
594 Participants
n=5 Participants
Region of Enrollment
United States
714 participants
n=5 Participants
703 participants
n=7 Participants
1417 participants
n=5 Participants

PRIMARY outcome

Timeframe: 6 months

Participants will complete follow-up assessment packets at 6 month intervals through 24 months. At each assessment point, investigators will calculate 7-day point- prevalence abstinence rates.

Outcome measures

Outcome measures
Measure
Extended Self-help
n=714 Participants
Spanish-Language Version of the Stop Smoking for Good: The Extended Self-help condition will comprise the 11 Stop Smoking for Good booklets and 9 supportive My Story pamphlets transcreated for Spanish speaking smokers. Spanish-Language Version of the Stop Smoking for Good: Participants in the first arm will receive the Spanish-language version of the Stop Smoking for Good (SS-SP) intervention distributed over 18 months.
Usual Care (UC)
n=703 Participants
NCI-Produced Spanish-language Self-help Booklet: The UC control condition enhances the external validity of the study by providing a comparison to an existing, credible intervention that a smoker could receive in a medical setting or elsewhere. NCI-Produced Spanish-language Self-help Booklet: Participants in the second arm will receive a single, credible, NCI-produced Spanish-language self-help booklet. Outcomes will be assessed through 24 months.
Percentage of Participants With Tobacco Abstinence at 6 Months
21.7 percentage of participants
11.3 percentage of participants

PRIMARY outcome

Timeframe: 12 months

Participants will complete follow-up assessment packets at 6 month intervals through 24 months. At each assessment point, investigators will calculate 7-day point- prevalence abstinence rates.

Outcome measures

Outcome measures
Measure
Extended Self-help
n=714 Participants
Spanish-Language Version of the Stop Smoking for Good: The Extended Self-help condition will comprise the 11 Stop Smoking for Good booklets and 9 supportive My Story pamphlets transcreated for Spanish speaking smokers. Spanish-Language Version of the Stop Smoking for Good: Participants in the first arm will receive the Spanish-language version of the Stop Smoking for Good (SS-SP) intervention distributed over 18 months.
Usual Care (UC)
n=703 Participants
NCI-Produced Spanish-language Self-help Booklet: The UC control condition enhances the external validity of the study by providing a comparison to an existing, credible intervention that a smoker could receive in a medical setting or elsewhere. NCI-Produced Spanish-language Self-help Booklet: Participants in the second arm will receive a single, credible, NCI-produced Spanish-language self-help booklet. Outcomes will be assessed through 24 months.
Percentage of Participants With Tobacco Abstinence at 12 Months
28.4 percentage of participants
17.0 percentage of participants

PRIMARY outcome

Timeframe: 18 months

Participants will complete follow-up assessment packets at 6 month intervals through 24 months. At each assessment point, investigators will calculate 7-day point- prevalence abstinence rates.

Outcome measures

Outcome measures
Measure
Extended Self-help
n=714 Participants
Spanish-Language Version of the Stop Smoking for Good: The Extended Self-help condition will comprise the 11 Stop Smoking for Good booklets and 9 supportive My Story pamphlets transcreated for Spanish speaking smokers. Spanish-Language Version of the Stop Smoking for Good: Participants in the first arm will receive the Spanish-language version of the Stop Smoking for Good (SS-SP) intervention distributed over 18 months.
Usual Care (UC)
n=703 Participants
NCI-Produced Spanish-language Self-help Booklet: The UC control condition enhances the external validity of the study by providing a comparison to an existing, credible intervention that a smoker could receive in a medical setting or elsewhere. NCI-Produced Spanish-language Self-help Booklet: Participants in the second arm will receive a single, credible, NCI-produced Spanish-language self-help booklet. Outcomes will be assessed through 24 months.
Percentage of Participants With Tobacco Abstinence at 18 Months
29.3 percentage of participants
20.7 percentage of participants

PRIMARY outcome

Timeframe: 24 months

Participants will complete follow-up assessment packets at 6 month intervals through 24 months. At each assessment point, investigators will calculate 7-day point- prevalence abstinence rates.

Outcome measures

Outcome measures
Measure
Extended Self-help
n=714 Participants
Spanish-Language Version of the Stop Smoking for Good: The Extended Self-help condition will comprise the 11 Stop Smoking for Good booklets and 9 supportive My Story pamphlets transcreated for Spanish speaking smokers. Spanish-Language Version of the Stop Smoking for Good: Participants in the first arm will receive the Spanish-language version of the Stop Smoking for Good (SS-SP) intervention distributed over 18 months.
Usual Care (UC)
n=703 Participants
NCI-Produced Spanish-language Self-help Booklet: The UC control condition enhances the external validity of the study by providing a comparison to an existing, credible intervention that a smoker could receive in a medical setting or elsewhere. NCI-Produced Spanish-language Self-help Booklet: Participants in the second arm will receive a single, credible, NCI-produced Spanish-language self-help booklet. Outcomes will be assessed through 24 months.
Percentage of Participants With Tobacco Abstinence at 24 Months
33.1 percentage of participants
23.3 percentage of participants

Adverse Events

Extended Self-help

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

Usual Care (UC)

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

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Thomas H. Brandon PhD

Moffitt Cancer Center

Phone: 813 745-1750

Results disclosure agreements

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