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Smoking, Stress & Allopregnanolone Response

Effect of Smoking on Stress-Induced Allopregnanolone Response in Women by Menstrual Phase

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02087800
Enrollment
43
Registered
2014-03-14
Start date
2014-04-30
Completion date
2015-08-31
Last updated
2015-11-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Smoking Cessation

Keywords

smoking cessation, smoking abstinence, allopregnanolone

Brief summary

This study aims to characterize the effect of smoking on stress-induced allopregnanolone (ALLO) response in women by menstrual phase. The investigators hypothesize that women who smoke will have a blunted ALLO response to stress.

Detailed description

Cigarette smoking persists as the leading cause of preventable morbidity and mortality. Thus, finding ways to maximize quitting behavior is critical. Women have a more difficult time achieving smoking abstinence than men. The risk for smoking relapse appears to vary by menstrual phase such that the follicular phase is associated with greater risk compared to the luteal phase. Women are also more likely to smoke in response to stressful stimuli than men. Allopregnanolone (ALLO) is a stress-reducing neuroactive steroid that is primarily metabolized from the sex hormone progesterone and, therefore, varies by menstrual phase in women. Recent preclinical literature has indicated that ALLO may protect against drug abuse behaviors. Unfortunately, ALLO remains largely unexplored in clinical samples containing women. In this study we aim to characterize the effect of smoking on stress-induced ALLO response in women by menstrual phase. To achieve this goal, we will recruit a sample of premenopausal women who smoke (n=30) and do not smoke (n=30) to participate in a controlled cross-over study. All participants will complete two four-hour lab sessions timed to occur in the Follicular (F; low ALLO) and Luteal (L; high ALLO) menstrual phases. Each lab session will contain an acute stressor along with a timed series of assessments including blood samples (for ALLO measurement) and self-report of mood and perceived stress.

Interventions

BEHAVIORALF phase lab session

F phase sessions will occur three to seven days post the onset of menses. It will include blood draws, an acute stressor and completion of questionnaires.

BEHAVIORALL phase lab session

L phase sessions will occur six to ten days prior to the onset of the next expected menses. It will include blood draws, an acute stressor and completion of questionnaires.

Sponsors

University of Minnesota
Lead SponsorOTHER

Study design

Observational model
CASE_CROSSOVER
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 40 Years
Healthy volunteers
Yes

Inclusion criteria

* Female between the ages of 18-40 years old * Stable physical/mental health, * Self-report of regular menstrual cycles, * Self-report of either smoking either current or never smoking, * English fluency, * Ability to provide informed consent

Exclusion criteria

* Self-report of current use of illicit drugs, other tobacco products, nicotine, or smoking cessation medications, * Current or recent pregnancy or breastfeeding, * Current or recent use of exogenous hormones (including birth control pills), * Current or recent use of psychotropic medications.

Design outcomes

Primary

MeasureTime frameDescription
Change in allopregnanolone levels6 weeksThe change in ALLO after delivery of the acute stressor will be analyzed.

Secondary

MeasureTime frameDescription
Change in mood6 weeksWe will analyze ALLO levels and mood to see if there is an association between the two.
Change in stress level6 weeksWe will analyze ALLO levels and perceived stress level to see if there is an association and whether stress changes as ALLO levels change.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026