NCT02250534

Brief Summary

This study will examine extended exposure to cigarettes varying in nicotine content among disadvantaged women. Disadvantaged women are at increased risk for smoking, nicotine dependence, and using high nicotine yield cigarettes and are also at significantly increased risk for smoking-related adverse health consequences, including cervical cancer, thrombosis related to hormone-based contraception, infertility, and early menopause. Studies testing an innovative regulatory strategy of reducing the nicotine content of cigarettes to a non-addictive level have shown promising beneficial effects (decreased smoking rate, reduced toxicant exposure, and increased cessation) in the general population of smokers. However, these studies have uniformly excluded vulnerable populations like disadvantaged women who may respond differently considering their greater vulnerability to smoking and nicotine dependence. Thus, little is known scientifically about how this highly vulnerable subgroup of smokers might respond to a nicotine reduction policy. This project is designed to address that substantial knowledge gap. This same study was also conducted in two additional vulnerable populations under a similar protocol.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
775

participants targeted

Target at P75+ for phase_1

Timeline
Completed

Started Oct 2016

Typical duration for phase_1

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 23, 2014

Completed
3 days until next milestone

First Posted

Study publicly available on registry

September 26, 2014

Completed
2 years until next milestone

Study Start

First participant enrolled

October 1, 2016

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 1, 2019

Completed
3.2 years until next milestone

Results Posted

Study results publicly available

December 1, 2022

Completed
Last Updated

December 1, 2022

Status Verified

November 1, 2022

Enrollment Period

3 years

First QC Date

September 23, 2014

Results QC Date

October 11, 2022

Last Update Submit

November 15, 2022

Conditions

Keywords

Biomarkers of exposureCompensatory smokingNicotine dependenceReduced nicotine cigarettesTobacco withdrawalWomenHealth disparitiesVulnerable populations

Outcome Measures

Primary Outcomes (1)

  • Cigarettes Per Day (CPD)

    Participant reported number of cigarettes smoked per day at Week 12.

    12 weeks

Study Arms (3)

0.8 mg nicotine

EXPERIMENTAL

0.8 mg nicotine very low nicotine content cigarettes

Other: Very low nicotine content cigarettes

0.12 mg nicotine

EXPERIMENTAL

0.12 mg nicotine very low nicotine content cigarettes

Other: Very low nicotine content cigarettes

0.03 mg nicotine

EXPERIMENTAL

0.03 mg nicotine very low nicotine content cigarettes

Other: Very low nicotine content cigarettes

Interventions

0.03 mg nicotine0.12 mg nicotine0.8 mg nicotine

Eligibility Criteria

Age18 Years - 44 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Female
  • Ages 18-44 years
  • Less than an Associate's degree
  • Report smoking ≥ 5 cigarettes per day
  • Provide an intake breath carbon monoxide (CO) sample \> 8 ppm
  • Be without current (within the past year) serious mental disorder that would interfere with study results or completion as determined by the Licensed Medical Professional or PI
  • Be without current substance abuse/dependence other than nicotine
  • Be sufficiently literate to complete research-related tasks
  • Be in good physical health without serious illness or change in health or medication in the past three months as determined by the Licensed Medical Professional at each site
  • Not pregnant or nursing and report using oral, implant, patch, ring, intrauterine device (IUD), injection, or barrier contraceptives or report being surgically sterile, or post menopausal
  • Report no significant use of other tobacco or nicotine products within the past month (\> 9 days in the past 30)

You may not qualify if:

  • Any prior regular use (used as primary cigarette outside of the laboratory) of Spectrum cigarettes (i.e., research cigarettes with reduced nicotine content)
  • Exclusive use of roll-your-own cigarettes
  • Planning to quit smoking in the next 30 days
  • A quit attempt in the past 30 days resulting in \> 3 days of abstinence
  • Currently taking anticonvulsant medications
  • Positive toxicology screen for illicit drugs not including marijuana (participants with valid prescriptions will not be excluded and participants with a positive toxicology screen will be allowed to re-screen once)
  • Breath alcohol level \> 0.01 (participants with a positive screen will be allowed to re-screen once)
  • Self-report of binge drinking alcohol (\> 9 days in past 30, 4 drinks in 2 hours )
  • Systolic blood pressure \< 90 or ≥ 160 mmHg (participants outside the range will be allowed to re-screen once)
  • Diastolic blood pressure \< 50 or ≥ 100 mmHg (participants outside the range will be allowed to re-screen once)
  • Breath CO \> 80 ppm
  • Heart rate \< 45 or ≥ 115 bpm (participants outside the range will be allowed to re-screen once)
  • Currently seeking treatment for smoking cessation
  • Have used nicotine replacement, bupropion or other pharmacotherapies as cessation aids in the past month (bupropion for treatment of depression will be allowed)
  • Current symptoms of psychosis, dementia or mania
  • +3 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Johns Hopkins University

Baltimore, Maryland, 21224, United States

Location

University of Vermont

Burlington, Vermont, 05401, United States

Location

Related Publications (6)

  • Harfmann RF, Heil SH, Bunn JY, Snell LM, Tidey JW, Sigmon SC, Gaalema DE, Lee DC, Streck JM, Bergeria CL, Davis DR, Plucinski S, Higgins ST. Changes in weight among individuals with psychiatric conditions or socioeconomic disadvantage assigned to smoke very low nicotine content cigarettes. Exp Clin Psychopharmacol. 2024 Apr;32(2):181-188. doi: 10.1037/pha0000700. Epub 2024 Jan 18.

  • Gaalema DE, Snell LM, Tidey JW, Sigmon SC, Heil SH, Lee DC, Bunn JY, Park C, Hughes JR, Higgins ST. Potential effects of nicotine content in cigarettes on use of other substances. Prev Med. 2022 Dec;165(Pt B):107290. doi: 10.1016/j.ypmed.2022.107290. Epub 2022 Oct 5.

  • Oliver AC, DeSarno M, Irvin CG, Kaminsky D, Tidey JW, Sigmon SC, Heil SH, Gaalema DE, Lee D, Bunn JY, Davis DR, Streck JM, Gallagher T, Higgins ST. Effects of Reduced Nicotine Content Cigarettes on Fractional Exhaled Nitric Oxide and Self-Reported Respiratory Health Outcomes Among Smokers With Psychiatric Conditions or Socioeconomic Disadvantage. Nicotine Tob Res. 2022 Jan 1;24(1):135-140. doi: 10.1093/ntr/ntab145.

  • Higgins ST, DeSarno M, Bunn JY, Gaalema DE, Leventhal AM, Davis DR, Streck JM, Harfmann RF, Markesich C, Orr E, Sigmon SC, Heil SH, Tidey JW, Lee D, Hughes JR. Cumulative vulnerabilities as a potential moderator of response to reduced nicotine content cigarettes. Prev Med. 2021 Nov;152(Pt 2):106714. doi: 10.1016/j.ypmed.2021.106714. Epub 2021 Jul 7.

  • Higgins ST, Tidey JW, Sigmon SC, Heil SH, Gaalema DE, Lee D, Hughes JR, Villanti AC, Bunn JY, Davis DR, Bergeria CL, Streck JM, Parker MA, Miller ME, DeSarno M, Priest JS, Cioe P, MacLeod D, Barrows A, Markesich C, Harfmann RF. Changes in Cigarette Consumption With Reduced Nicotine Content Cigarettes Among Smokers With Psychiatric Conditions or Socioeconomic Disadvantage: 3 Randomized Clinical Trials. JAMA Netw Open. 2020 Oct 1;3(10):e2019311. doi: 10.1001/jamanetworkopen.2020.19311.

  • Higgins ST, DeSarno M, Davis DR, Nighbor T, Streck JM, Adise S, Harfmann R, Nesheim-Case R, Markesich C, Reed D, Tyndale RF, Gaalema DE, Heil SH, Sigmon SC, Tidey JW, Villanti AC, Lee D, Hughes JR, Bunn JY. Relating individual differences in nicotine dependence severity to underpinning motivational and pharmacological processes among smokers from vulnerable populations. Prev Med. 2020 Nov;140:106189. doi: 10.1016/j.ypmed.2020.106189. Epub 2020 Jul 3.

MeSH Terms

Conditions

Tobacco Use Disorder

Condition Hierarchy (Ancestors)

Substance-Related DisordersChemically-Induced DisordersMental Disorders

Results Point of Contact

Title
Stephen T. Higgins, PhD, Professor, Department of Psychiatry
Organization
University of Vermont

Study Officials

  • Stephen T. Higgins, Ph.D.

    University of Vermont

    STUDY DIRECTOR
  • Sarah H. Heil, Ph.D.

    University of Vermont

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Model Details: This study was one of three multi-site clinical trials conducted in three different vulnerable populations under a similar protocol, with differences between protocols consisting of data collection specific to that vulnerable population. This included information such as use and timing of opioid maintenance therapy for individuals with opioid-use disorder or additional assessments of anxiety and depression for individuals with affective disorders. In order to explore potential differences across individuals with different vulnerabilities, data from all three studies were combined for analysis. A vulnerable population-by-condition or population-by- condition-by-time interaction term was included in all analyses. In the event that these interaction terms were statistically significant, all pairwise comparisons were conducted using a Bonferroni multiple comparison adjustment. Please see Statistical Analysis Plan for more details.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

September 23, 2014

First Posted

September 26, 2014

Study Start

October 1, 2016

Primary Completion

October 1, 2019

Study Completion

October 1, 2019

Last Updated

December 1, 2022

Results First Posted

December 1, 2022

Record last verified: 2022-11

Locations