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Marijuana DependenceNCT02579421

Hormones and Reduction in Co-users of Marijuana and Nicotine

A study testing Progesterone in people with Marijuana Dependence, run by University of Minnesota at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to examine the role of progesterone (a naturally occurring hormone found in both men and women) on reducing marijuana use. The investigators will see if progesterone effects impulsivity, withdrawal, mood and stress during marijuana cessation. Read more about this study

Who is it for?
Ages 18 to 60 yearsHealthy volunteers can take part
Conditions the study is for
Marijuana Dependence
What is being tested?
Progesterone
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
58 participants
Where
1 siteUnited States
Study dates
Nov 2015to 27 Jul 2017
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 60 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Males 18-60 years old, females 18-50 years old
  • Stable physical and mental health
  • Self-report Timeline Follow-Back (TLFB) indicating current marijuana use ≥4 days/week for ≥1 year
  • Positive urine THC dipstick test (> 50ng/mL; indicating marijuana use in the past 48-72 hours)
  • Motivated to change their marijuana use (>1 on a 10-point Likert-type scale) -Regular or sporadic use of nicotine cigarettes (> 1 cigarettes in the past 30 days) -Self-report of regular menstrual cycles >6 months (female only)
  • Willing to use double-barrier contraception if sexually active and not surgically sterilized (female only)
  • Ability to comply with study procedures, ability to provide informed consent.

Who cannot join

  • Current breastfeeding (females only),
  • Current or planned pregnancy within the next three months (females only)
  • DSM-IV diagnoses for psychotic disorders, bipolar disorder, ADHD, major depressive disorder within the last 3 months
  • Substance dependence within the last 3 months with the exception of nicotine and marijuana dependence
  • Unstable psychotropic medications (<3 months)
  • Current use of exogenous hormones, finasteroid (propecia), efavirenz, red clover, ketoconazole and other drugs that are CYP3A4 inhibitors
  • Conditions contraindicated to progesterone treatment (including, but not limited to, thrombophlebitis, deep vein thrombosis, pulmonary embolus, clotting or bleeding disorders, heart disease, diabetes, history of stroke, allergy to peanuts, hypersensitive to progesterone and liver dysfunction)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Delaware Clinical Research Unit, University of Minnesota

    Minneapolis, Minnesota, 55455

Other trials in United States

About this study

Official title: Sex Differences and Progesterone: Association With Impulsivity and Marijuana Reduction in Co-Users of Marijuana and Nicotine Cigarettes

The purpose of this study is to examine the role of progesterone (a naturally occurring hormone found in both men and women) on reducing marijuana use. The investigators will see if progesterone effects impulsivity, withdrawal, mood and stress during marijuana cessation.

Read the detailed description

This double-blind, randomized pilot clinical trial will prescreen an estimated 250 potential subjects, consent and further evaluate approximately 100 potential subjects, and ultimately enroll 70 subjects to ensure 40 subjects will provide a primary marijuana reduction outcome measure at four weeks post quit date. Subjects will be stratified by sex then randomized to one of two treatment groups (n=20 per drug group, 50% female): progesterone (PRO; 200mg 2x/day) or Placebo (PBO). Telephone screening and visit invitation (20 minutes) leads to the consent process and in-person screening including medical-psychiatric evaluation for inclusion/exclusion (two visits, two hours each), then randomization and medication start (7 days), then stable medication (28 days) with medication reduction and final evaluation (7 days).

Being tested
Progesterone, placebo
Medical subject headings
Marijuana Abuse

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ProgesteroneDrug

    Also called Promitrium, Crinone, Endometrin, Prochieve

    generic progesterone

  • placeboDrug

    placebo

Study groups in NCT02579421
Study groupRoleWhat they receive
Males - ProgesteroneActive comparator200 mg progesterone BID
Receives: Drug: Progesterone
Males - PlaceboPlacebo comparatorplacebo BID
Receives: Drug: placebo
Females - ProgesteroneActive comparator200 mg progesterone BID
Receives: Drug: Progesterone
Females - PlaceboPlacebo comparatorplacebo BID
Receives: Drug: placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in Marijuana Use as Defined by the TLFB

    Marijuana use as defined by the TLFB at the week 4 visit relative to the baseline visit.

    Measured: 5 weeks. Baseline to week 4

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Oct 2015 (estimated)
  2. Study startNov 2015
  3. Primary completion27 Jul 2017
  4. Study completion27 Jul 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
58 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02579421
Sponsor's protocol ID
2015NTLS141
Status last verified
Jun 2020
First submitted
13 Oct 2015
Last updated
26 Jun 2020
Data monitoring committee
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Progesterone in people with Marijuana Dependence, run by University of Minnesota at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 26 Jun 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 10 Jul 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in Marijuana Use as Defined by the TLFB (time frame: 5 weeks. Baseline to week 4). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 26 Jun 2020.

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