Completed

Progesterone Treatment in Female Smokers

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What is being tested

Data Collection

Who is being recruted

Mental Disorders+1

+ Tobacco Use Disorder

+ Substance-Related Disorders

From 21 to 45 Years
See all eligibility criteria
How is the trial designed

Treatment Study

Phase 2
Interventional
Study Start: April 1999
See protocol details

Summary

Principal SponsorNational Institute on Drug Abuse (NIDA)
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

Study start date: April 1, 1999

Actual date on which the first participant was enrolled.

Limited research has been done on the effects of gender and menstrual cycle in response to drugs of abuse in humans. The main goal of this pilot study is to investigate the safety and tolerability of progesterone treatment in female nicotine users. In addition, plasma progesterone levels reached with a single 200 mg dose of progesterone treatment will be measured. The study will be a double-blind placebo controlled, crossover trial in which 12 female smokers who are in the early follicular phase of their menstrual cycle will be enrolled. Druing the experimental sessions, subjects will be given a single 200 mg dose of micronized progesterone or placebo and multiple blood samples will be obtained to measure the plasma levels of progesterone. Starting 2 hours after progesterone or placebo treatment, subjects will have a self-administration period that will last around 2.5 hours. We hypothesize that administration of 200 mg of progesterone will achieve plasma progesterone concentrations similar to those found in the luteal phase of the menstrual cycle, 3-30 ng/ml.

Official TitleProgesterone Treatment in Female Smokers
NCT00000295
Principal SponsorNational Institute on Drug Abuse (NIDA)
Last updated: January 27, 2026
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.

Treatment Study

These studies test new ways to treat a disease, condition, or health issue. The goal is to see if a new drug, therapy, or approach works better or has fewer side effects than existing options.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria

Female

Biological sex of participants that are eligible to enroll.

From 21 to 45 Years

Range of ages for which participants are eligible to join.

Healthy volunteers not allowed

If individuals who are healthy and do not have the condition being studied can participate.

Conditions

Pathology

Mental DisordersTobacco Use DisorderSubstance-Related DisordersChemically-Induced Disorders

Criteria

Inclusion Criteria: Female subjects aged 21-45 years with a smoking history of at least 20 cigarettes daily for at least 1 year. In good health as verified by medical history, screening examination, and screening laboratory tests. Not pregnant as determined by pregnancy screening nor breast feeding, and using acceptable birth control methods other than hormonal contraceptives. Exclusion Criteria: History of heart disease, peripheral vascular disease, COPD, liver diseases, abnormal vaginal bleeding, suspected or known breast malignancy, or any other medical condition which physician investigator deems inappropriate for subject participation. Use of regular psychotropic medication (antidepressants, antipsychotics, or anxiolytics) and recent psychiatric history. Amenorrhea. Current use of oral or other types of hormonal contraceptives. Abuse of alcohol or any other recreational or prescription drug. Regular use of any other tobacco products, including smokeless tobacco and nicotine products. Known allergy to progesterone or peanuts.

Study Plan

Find out more about all the medication administered in this study, their detailed description and what they involve.
Study Objectives

Study Objectives

Primary Objectives

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.

This study has 1 location

Suspended

University of Minnesota

Minneapolis, United StatesOpen University of Minnesota in Google Maps
CompletedOne Study Center
Progesterone Treatment in Female Smokers | PatLynk