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CompletedNCT02873377Updated Nov 7, 2019Results posted

Smoking Cessation in Hispanic Construction Workers

A Phase 4 interventional study of Nicorette Gum and Nicoderm CQ in Smoking Cessation, sponsored by University of Miami. Completed at 1 site in United States. Open to male participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2019-11-07.

Sponsored by University of Miami · Phase 4, Interventional, and Treatment

Phase
Phase 4
Study type
Interventional
Enrollment
134
Allocation
Randomized
Ages
18 Years and older
Sex
Male
01

Study summary

Construction workers have the highest rate of smoking among all occupations, and are frequently exposed to a wide range of workplace hazards (e.g. toxins), which interact with smoking to increase their health risks. Minority construction workers, in particular, have higher smoking and lower cessation rates compared to other groups, and they generally show lower access and participation in cessation and health promotion services. The number of Hispanic workers employed in the construction industry in the US has tripled in the past decade to 2.6 million (23% of all construction workers). This study will develop, administer, and evaluate a novel smoking cessation program in a hard-to-reach and underserved population of Hispanic male construction workers using using pilot cluster randomized clinical trial (RCT) to test the developed intervention for feasibility and potential efficacy.

Read the detailed description

A two-arm, cluster-randomized controlled trial will be conducted with up to 15 construction sites, selected from one Construction Company in south Florida. Cluster randomization is used with construction site chosen as the unit of allocation because it is most practical in this setting and minimizes the risk of spillover effects from the intervention to the control group. In conjunction with the site's safety manager, the investigators will recruit 9 adult Hispanic construction workers per site (126 total) who smoke ≥5 cigarettes/day in the last year. Participants in the enhanced care will receive one culturally adapted brief face-to-face behavioral counseling session developed in phase 1 and delivered at a lunch truck, two brief follow-up phone counseling calls, fax referral to the Florida quitline (QL), and provision of up to 6 weeks of free NRT. Participants in the standard care will receive fax referral to the Florida QL, and provision of up to 8 weeks of free NRT.

02

Conditions studied

  • Smoking Cessation

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Keywords

  • Hispanics
  • Construction workers
  • Tobacco Quitline
  • Nicotine replacement therapy
03

In context

Smoking Cessation

350 studies on the registry are indexed under Smoking Cessation; 145 are open to participants now.

This study's enrollment of 134 is below the median of 150 across 326 interventional studies indexed under Smoking Cessation.

Browse Smoking Cessation studies →

Lead sponsor

University of Miami is the lead sponsor of 838 studies on the registry; 164 are open to participants now.

Of its 114 completed or terminated interventional studies of FDA-regulated products, 96 (84%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Male
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Hispanic
  • Construction worker
  • Have smoked ≥ 5 cigarettes/day in the past year.
  • Have access to telephone
  • Have no plans to move in the next six months
  • Are interested in making a serious quit attempt in the next 30 days
  • Have no contraindication to NRT (e.g., history of hypersensitivity to nicotine, recent (past month) myocardial infarction, any history of serious arrhythmias or unstable angina pectoris, chronic dermatological disorder (e.g., psoriasis)).

Exclusion criteria

Exclusion Criteria:

  • Inability to understand consent procedures
  • Not Hispanic
  • Not a construction worker
  • Haven't smoked ≥ 5 cigarettes/day in the past year.
  • No access to telephone
  • Has plans to move in the next six months
  • Not interested in making a serious quit attempt in the next 30 days
  • Has a contraindication to NRT
  • Has a generalized chronic dermatological disorder (e.g., psoriasis)
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
134 participants (actual)

Study arms

  • Experimental
    Enhanced Care

    Interventions: Nicorette Gum/Nicoderm CQ, Behavioral Smoking Cessation Counseling \& Smoking Quitline Referral. Participants in the "Enhanced Care" intervention arm will receive a single face-to-face behavioral counseling session delivered at the construction site lunch truck, two brief follow-up phone counseling calls, fax referral to the Florida tobacco quitline (QL), and provision of up to 8 weeks of free Nicotine Replacement Therapy (up to 6 weeks provided by the study and 2 weeks provided by the QL). Participants in will receive two follow-up phone assessments at 3-, and 6-months of enrollment.

    Drug: Nicorette Gum · Drug: Nicoderm CQ · Other: Smoking Quitline Referral · Behavioral: Behavioral Smoking Cessation Counseling

  • Active comparator
    Standard Care

    Interventions: Nicorette Gum/Nicoderm CQ, Smoking Quitline Referral. The "Standard Care" group (NRT) will receive fax referral to the Florida QL and provision of up to 8 weeks of free Nicotine Replacement Therapy (up to 6 weeks provided by the study and 2 weeks provided by the QL). Participants will receive two follow-up phone assessments at 3-, and 6-months of enrollment.

    Drug: Nicorette Gum · Drug: Nicoderm CQ · Other: Smoking Quitline Referral

Interventions

  • GlaxoSmithKline Nicorette Gum (nicotine replacement therapy)

    Also known as: NRT

  • DrugNicoderm CQ

    Drug pages: Nicotine · Nicotine Patch

    GlaxoSmithKline Nicoderm CQ (nicotine replacement therapy)

    Also known as: NRT

  • OtherSmoking Quitline Referral

    Fax referral to the State smoking Quitline

    Also known as: Quitline

  • BehavioralBehavioral Smoking Cessation Counseling

    One time face-to-face smoking cessation counseling and follow-up phone call

    Also known as: Counseling

06

What researchers measure

Primary outcomes

  1. Prolonged Abstinence Rates

    Prolonged abstinence is defined as no smoking, not even a puff, after a grace period of two weeks after quit date. This will be assessed in follow up questionnaire and confirmed with saliva cotinine level of \<15 ng/ml.

    Time frame: 6-month

Secondary outcomes

  1. 7-day Point- Prevalence Prolonged Abstinence Rate

    Point prevalence abstinence rates is defined as self report of not smoking; in the past 7 days not even a puff) confirmed by saliva cotinine level of \<15ng/ml.

    Time frame: 6-month

  2. Enrollment Rate

    Enrollment rate will be reported as the percentage of participants that were eligible and randomized against the participants screened.

    Time frame: Baseline

  3. Quitline Response Rate

    Quitline Response will be reported by the percentage of participants that contacted the Quitline, enrolled in the tobacco Quitline and the participants that completed at least 1 phone call from Tobacco Quitline.

    Time frame: 6-month

  4. Follow-Up Rate

    Follow up rate will be reported as the percentage of participants that completed their follow up visit.

    Time frame: 3-month, 6-month

  5. Questionnaire Response Rate

    Questionnaire response rate will be reported by the percentage of participants that completed the initial and follow up questionnaire.

    Time frame: 6-month

  6. Rate of Compliance to Intervention

    Rate of compliance to intervention is reported as the percentage of participants who self-reported following intervention components at follow-up.

    Time frame: 6-month

  7. Change in Number of Cigarettes Smoked

    For the participants that did not quit, the change in number of cigarettes smoked will be reported as the number of cigarettes smoked per day at the 6 months follow up visit minus the number of cigarettes smoked per day at baseline

    Time frame: Baseline, 6-month

07

Results

Posted Oct 24, 2019

Participant flow

Period 1: Enrollment
Participant flow — Period 1: Enrollment
MilestoneEnhanced CareStandard Care
Started6569
Completed6569
Not completed00
Period Title 2: 3 Months Follow up
Participant flow — Period Title 2: 3 Months Follow up
MilestoneEnhanced CareStandard Care
Started6569
Completed4347
Not completed2222
Withdrew: Lost to follow-up2222
Period Title 3: 6 Months Follow up
Participant flow — Period Title 3: 6 Months Follow up
MilestoneEnhanced CareStandard Care
Started6569
Completed5046
Not completed1523
Withdrew: Lost to follow-up1523

Outcome measures

PrimaryProlonged Abstinence Rates

Prolonged abstinence is defined as no smoking, not even a puff, after a grace period of two weeks after quit date. This will be assessed in follow up questionnaire and confirmed with saliva cotinine level of \<15 ng/ml.

Time frame:
6-month
Reported as:
Number · Percentage of participants
Prolonged Abstinence Rates
Percentage of participantsEnhanced CareStandard Care
Prolonged Abstinence Rates36.0030.43
Secondary7-day Point- Prevalence Prolonged Abstinence Rate

Point prevalence abstinence rates is defined as self report of not smoking; in the past 7 days not even a puff) confirmed by saliva cotinine level of \<15ng/ml.

Time frame:
6-month
Reported as:
Number · Percentage of participants
7-day Point- Prevalence Prolonged Abstinence Rate
Percentage of participantsEnhanced CareStandard Care
7-day Point- Prevalence Prolonged Abstinence Rate36.0030.43
SecondaryEnrollment Rate

Enrollment rate will be reported as the percentage of participants that were eligible and randomized against the participants screened.

Time frame:
Baseline
Reported as:
Number · Percentage of participants
Enrollment Rate
Percentage of participantsAll Workers Available - Before Randomization
Eligible Participants85.9
Randomized participants85.9
SecondaryQuitline Response Rate

Quitline Response will be reported by the percentage of participants that contacted the Quitline, enrolled in the tobacco Quitline and the participants that completed at least 1 phone call from Tobacco Quitline.

Time frame:
6-month
Reported as:
Number · Percentage of participants
Quitline Response Rate
Percentage of participantsEnhanced CareStandard Care
Contacted by tobacco Quitline49.240.6
Enrolled in tobacco Quitline29.2323.19
Completed at least 1 phone calls from tobacco QL23.0811.59
SecondaryFollow-Up Rate

Follow up rate will be reported as the percentage of participants that completed their follow up visit.

Time frame:
3-month, 6-month
Reported as:
Number · Percentage of participants
Follow-Up Rate
Percentage of participantsEnhanced CareStandard Care
3-month follow-up66.1568.12
6-month follow-up76.9266.67
SecondaryQuestionnaire Response Rate

Questionnaire response rate will be reported by the percentage of participants that completed the initial and follow up questionnaire.

Time frame:
6-month
Reported as:
Number · Percentage of participants
Questionnaire Response Rate
Percentage of participantsEnhanced CareStandard Care
completed initial questionnaire93.8588.41
Completed follow-up questionnaire76.9266.67
SecondaryRate of Compliance to Intervention

Rate of compliance to intervention is reported as the percentage of participants who self-reported following intervention components at follow-up.

Time frame:
6-month
Reported as:
Number · Percentage of participants
Rate of Compliance to Intervention
Percentage of participantsEnhanced CareStandard Care
Counseling session + 2 phone calls43.0888.40
6 weeks NRT93.8588.41
4 Quitline counseling sessions6.152.9
2 weeks NRT from Quitline15.3813.04
SecondaryChange in Number of Cigarettes Smoked

For the participants that did not quit, the change in number of cigarettes smoked will be reported as the number of cigarettes smoked per day at the 6 months follow up visit minus the number of cigarettes smoked per day at baseline

Time frame:
Baseline, 6-month
Reported as:
Mean · Cigarettes smoked per day
Change in Number of Cigarettes Smoked
Cigarettes smoked per dayEnhanced CareStandard Care
Change in Number of Cigarettes Smoked-13.5 ± 1.5-11.5 ± 1.3

Adverse events

Collected over 6 months. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Enhanced Care0/65 (0%)0/65 (0%)0/65 (0%)
Standard Care0/69 (0%)0/69 (0%)0/69 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)Enhanced CareStandard CareTotal
Mean40.9 ± 1.538.2 ± 1.439.5 ± 1.8
Sex: Female, Male
Sex: Female, Male(Participants)Enhanced CareStandard CareTotal
Female000
Male6569134
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Enhanced CareStandard CareTotal
Hispanic or Latino6569134
Not Hispanic or Latino000
Unknown or Not Reported000
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Enhanced CareStandard CareTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American022
White61016
More than one race101
Unknown or Not Reported5857115
08

Study locations

1 site
  • Clinical Research Building University of Miami
    Miami, Florida 33136, United States
09

References and documents

Publications

  • Asfar T, Arheart KL, McClure LA, Ruano-Herreria EC, Dietz NA, Ward KD, Caban-Martinez AJ, Samano Martin Del Campo D, Lee DJ. Implementing a Novel Workplace Smoking Cessation Intervention Targeting Hispanic/Latino Construction Workers: A Pilot Cluster Randomized Trial. Health Educ Behav. 2021 Dec;48(6):795-804. doi: 10.1177/1090198120960395. Epub 2020 Oct 16. PubMed 33063570 ↗
  • Asfar T, McClure LA, Arheart KL, Ruano-Herreria EC, Gilford CG Jr, Moore K, Dietz NA, Ward KD, Lee DJ, Caban-Martinez AJ. Integrating Worksite Smoking Cessation Services Into the Construction Sector: Opportunities and Challenges. Health Educ Behav. 2019 Dec;46(6):1024-1034. doi: 10.1177/1090198119866900. Epub 2019 Aug 19. PubMed 31426671 ↗
  • Asfar T, Caban-Martinez AJ, McClure LA, Ruano-Herreria EC, Sierra D, Gilford Clark G Jr, Samano D, Dietz NA, Ward KD, Arheart KL, Lee DJ. A cluster randomized pilot trial of a tailored worksite smoking cessation intervention targeting Hispanic/Latino construction workers: Intervention development and research design. Contemp Clin Trials. 2018 Apr;67:47-55. doi: 10.1016/j.cct.2018.02.007. Epub 2018 Feb 14. PubMed 29454141 ↗

Study documents

  • Protocol and statistical analysis plan · Aug 8, 2018

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 7, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT02873377
Responsible party
David Lee, PhD (Professor, University of Miami) — Principal investigator
First posted
Aug 19, 2016
Start date
Apr 13, 2017
Primary completion
Oct 11, 2018
Completion
Oct 11, 2018
Results posted
Oct 24, 2019
Last update
Nov 7, 2019

Study contacts

David J Lee, PhD
principal investigator · University of Miami
Taghrid Asfar, MD
study director · University of Miami

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Oct 2019. You cannot join it, but the record below documents what was studied.

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