Low Nicotine Content Cigarettes in Vulnerable Populations: Women of Reproductive Age

Summary

Despite marked reductions in cigarette smoking in the general population, smoking among economically disadvantaged women has increased. Smoking among women of reproductive age is a particular concern because in addition to the usual health risks, there are additional risks should they become pregnant. A national nicotine reduction policy for cigarettes has considerable potential to reduce tobacco use, dependence, and improve health in this population. Controlled trials in general population samples have demonstrated that reducing the nicotine content in cigarettes can reduce cigarettes per day (CPD), dependence severity, and tobacco toxicant exposure.

The goal of the proposed trial is to experimentally examine whether increasing the availability and appeal of an alternative, non-combusted source of nicotine (e-cigarettes) enhances the effect of altering the nicotine in cigarettes in non-pregnant female cigarette smokers of childbearing age. Additionally, investigators will test whether allowing participants to personalize the flavor of the e-liquid alters any moderating effects their availability may have on tobacco cigarette smoking.

Daily smokers who are female, aged 21-44 years, and have a maximum educational attainment of graduating high school, will be recruited at Johns Hopkins University and the University of Vermont.

Investigators will study two research cigarettes referred to here as Research Cigarettes 1 (RC1) and Research Cigarettes 2 (RC2). One will be a normal nicotine content cigarette and the other a reduced nicotine content cigarette. Investigators will study two e-cigarette conditions referred to here as E-Cigarette Condition 1 (EC1) and E-Cigarette Condition 2 (EC2). Both e-cigarette conditions will involve the same commercially available devices and same nicotine-containing e-liquid, but in one condition that e-liquid will be available only in tobacco flavor while in the other the e-liquid will be available in multiple flavors from which participants can choose three based on personal preference. Participants will be assigned to one of the following four conditions: (1) RC1 only; (2) RC2 only; (3) RC2 + EC1; (4) RC2 + EC2.

Participants will be asked to use only their assigned study products for 16 weeks. Outcome measures include total CPD, craving, withdrawal, psychiatric symptoms, breath carbon monoxide (CO), other biomarkers of tobacco toxicant exposure, and cigarette demand assessed by behavioral economic purchase tasks.

Conditions

• Tobacco Use Disorder

Interventions

OTHER

Varying the nicotine content of cigarettes

1\) Altering the nicotine content of the tobacco research cigarettes

OTHER

E-Cigarettes

Comparing effects of combining RC2 with EC 1 versus EC2

Sponsors & Collaborators

• National Institute on Drug Abuse (NIDA)

  collaborator NIH

• Food and Drug Administration (FDA)

  collaborator FED

• Johns Hopkins University

  collaborator OTHER

• University of Vermont

  lead OTHER

Principal Investigators

• Stephen T. Higgins, Ph.D. · University of Vermont

Study Design

Allocation

RANDOMIZED

Purpose

PREVENTION

Masking

TRIPLE

Model

PARALLEL

Eligibility

Min Age

21 Years

Max Age

44 Years

Sex

FEMALE

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2020-10-18

Primary Completion

2023-11-27

Completion

2023-11-27

Countries

• United States

Study Locations