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Cigarette SmokingEarly Phase 1NCT02193256

Varenicline + Prazosin for Heavy Drinking Smokers

A Early Phase 1 study testing Varenicline and Prazosin in people with Cigarette Smoking and Alcohol Use Disorders, run by Yale University 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 effect of varenicline and prazosin on smoking, drinking, and sleep among cigarette smokers who report heavy alcohol use. Varenicline is an FDA approved smoking cessation medication. Some smokers report sleep problems when taking varenicline. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Cigarette Smoking, Alcohol Use Disorders
What is being tested?
Varenicline and Prazosin
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
5 participants
Where
1 siteUnited States
Study dates
Jul 2014to Jun 2015
Phase
Early Phase 1
Are there results?
None posted in the registry

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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • at least 18 years of age;
  • current smoker [quantity of ≥ cigarettes per smoking day, frequency of ≥3 times per week, and urinary cotinine ≥2 on NicAlert dipstick;
  • at least 4 occasions of heavy drinking in the past 30 days [5 or 4 standard drinks per occasion for males and females, respectively];
  • no history of severe alcohol withdrawal syndrome;
  • no new onset of psychiatric illness or psychotropic medications in last 90 days;
  • no severe psychiatric illness [schizophrenia, bipolar disorder] or PTSD;
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  • no substance dependence other than nicotine, alcohol or marijuana;
  • no medical contraindications for varenicline or prazosin;
  • are willing to take medication and wear portable sleep monitoring devices;
  • no risk for sleep apnea syndrome;
  • able to read and write in English;
  • not interested in quitting smoking immediately.

Who cannot join

  • unable to complete the informed consent;
  • do not meet criteria for heavy drinking;
  • do not meet criteria for current smokers;
  • unable to read/understand English;
  • exhibit serious psychiatric illness (i.e. schizophrenia, bipolar disorder, severe major depression, panic disorder, borderline personality disorder), organic mood or mental disorders by history of psychological examination;
  • meet criteria for alcohol dependence in past 12 months that is clinically severe;
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  • meet criteria for drug dependence in the last 12 months aside from marijuana, nicotine and alcohol;
  • are seeking to quit smoking immediately;
  • report current psychosis or suicidality;
  • are a female of childbearing potential who is pregnant, nursing, or not practicing effective contraception (oral, injectable, or implantable contraceptives, intrauterine device, or barrier method with spermicide);
  • exhibit current, clinically significant physical disease or abnormality based on medical history, physical examination, or routine laboratory evaluation including:
  • any unexplained elevations in liver enzymes (i.e. transaminases, bilirubin);
  • clinically significant, unstable cardiovascular disease/uncontrolled hypertension;
  • hepatic or renal impairment;
  • severe obstructive pulmonary disease;
  • diabetes mellitus requiring insulin or certain oral medications (i.e. sulfonylureas) and an A1C hemoglobin test score of >7 for participants not prescribed these medications;
  • baseline systolic blood pressure higher than 150 mm Hg of diastolic blood pressure higher than 95 mm Hg; (g) are scheduled for cataract surgery; (h) have a diagnosis of narcolepsy;
  • have a history of cancer (except treated basal cell or squamous cell carcinoma of the skin)
  • have a history of clinically significant allergic reactions;
  • have used any psychotropic drug in the past month, except individuals who are on a stable dose of a Selective Serotonin Reuptake Inhibitor for at least two months;
  • intend to donate blood or blood products during the treatment phase of the study;
  • have a Body Mass Index (calculated as weight in kilograms divided by the square of height in meters) less than 15 or greater than 28 or weight less than 45 kg.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Yale University School of Medicine

    New Haven, Connecticut, 06511

Other trials in United States

About this study

Official title: Pilot Trial of Varenicline and Prazosin to Treat Heavy Drinking Smokers

The purpose of this study is to examine the effect of varenicline and prazosin on smoking, drinking, and sleep among cigarette smokers who report heavy alcohol use. Varenicline is an FDA approved smoking cessation medication. Some smokers report sleep problems when taking varenicline. This study will test whether using prazosin, which is an FDA-approved blood pressure medication, in combination with varenicline reduces sleep problems that can be associated with using varenicline for smoking cessation. In addition, the study will examine the combined effects of these medications on smoking and drinking.

Hypothesis: Varenicline plus prazosin will result in lower rates of vivid dreams and insomnia symptoms/sleep discontinuity than varenicline alone prior to the 3-day practice quit attempt.

Hypothesis: Varenicline plus prazosin will result in lower rates of vivid dreams and insomnia symptoms/sleep discontinuity than varenicline alone during the 3-day practice quit attempt.

Read the detailed description

The study comprises an 8-week double-blind, within-subjects, crossover design of varenicline (up to 2mg per day) plus either prazosin (up to 8mg per day) (V+P) or placebo (V) with 20 heavy drinking smokers. Each medication phase is 3 weeks with a 2-week medication washout in between. Participants are asked to make a practice quit attempt for 3 days the last week of each medication phase.

This is an exploratory study to look at two primary aims:

  1. Evaluate the effect of prazosin on sleep disturbance caused by varenicline in heavy drinking smokers prior to quitting smoking. Hypothesis: V+P will result in lower rates of vivid dreams and insomnia symptoms/sleep discontinuity than V alone.
  2. Evaluate the effect of prazosin on sleep disturbance caused by varenicline during smoking cessation in heavy drinking smokers.

Hypothesis: V+P will result in lower rates of vivid dreams and insomnia symptoms/sleep discontinuity than V alone We will also investigate the combined effects of prazosin and varenicline on smoking behavior (i.e., smoking urge) and alcohol consumption (i.e., drinks per drinking day) as exploratory aims.

Being tested
Varenicline, Prazosin, Placebo
Keywords
varenicline, prazosin, cigarette smoking, alcohol drinking, sleep, dreams
Medical subject headings
Cigarette Smoking, Alcoholism, Alcohol Drinking

What participants receive

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

  • VareniclineDrug

    Also called Chantix

    Titrated over 1 week to a maximum dose of 2mg/day

  • PrazosinDrug

    Also called Minipress

    Titrated over 3 weeks to a maximum dose of 8mg/day

  • PlaceboDrug

Study groups in NCT02193256
Study groupRoleWhat they receive
Varenicline plus PrazosinActive comparatorVarenicline: .5mg for 3 days then 1mg daily for 4 days (Week 1) then 2mg daily thereafter (Weeks 2-3). Prazosin: 1mg for 3 days, then 3mg for 4 days (Week 1), (2) 6mg for 3 days, then 8mg for 4 days (Week 2), and (3) 8mg (Week 3).
Receives: Drug: Varenicline; Drug: Prazosin
Varenicline plus PlaceboPlacebo comparatorVarenicline: .5mg for 3 days then 1mg daily for 4 days (Week 1) then 2mg daily thereafter (Weeks 2-3). Placebo: placebo will be given instead of prazosin (Weeks 1-3)
Receives: Drug: Varenicline; Drug: Placebo

What is being measured

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

  1. Effect of prazosin on sleep disturbance caused by varenicline prior to quitting smoking

    Sleep disturbance will be measured using self-report questionnaires (Insomnia Severity Index, Pittsburgh Sleep Quality Index, Pittsburgh Sleep Diary, Dream Quality Questionnaire) and objective sleep-monitoring devices.

    Measured: Two weeks

  2. Effect of prazosin on sleep disturbance caused by varenicline during smoking cessation

    Sleep disturbance will be measured using self-report questionnaires (Insomnia Severity Index, Pittsburgh Sleep Quality Index, Pittsburgh Sleep Diary, Dream Quality Questionnaire) and objective sleep-monitoring devices.

    Measured: One week

Timeline

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

  1. First posted17 Jul 2014 (estimated)
  2. Study startJul 2014
  3. Primary completionJan 2015
  4. Study completionJun 2015

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
Early Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
5 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02193256
Sponsor's protocol ID
1402013410
Other IDs
K05AA014715
Status last verified
Mar 2020
First submitted
14 Jul 2014
Last updated
12 Mar 2020
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Early Phase 1 study testing Varenicline and Prazosin in people with Cigarette Smoking and Alcohol Use Disorders, run by Yale University 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 12 inclusion and 22 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 12 Mar 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.

What does this phase mean?

Early Phase 1 (sometimes called Phase 0) studies give a very small amount of a treatment to a few people, mainly to see how the body handles it.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

Effect of prazosin on sleep disturbance caused by varenicline prior to quitting smoking (time frame: Two weeks). The study lists 2 primary outcomes in all. 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 12 Mar 2020.

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