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Alcohol DrinkingNCT03574181

Calibration Study of a Blood Alcohol Level Smart Watch

An observational study of Alcohol Drinking, run by Boston Medical Center at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This trial is designed to test the accuracy of a wristwatch blood alcohol level monitor relative to alcohol breath testing. An established human laboratory self-administration procedure will be followed. Each subject will complete 2 clinic visits over a period of up to 21 days of participation. Read more about this study

Who is it for?
Ages 21 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Alcohol Drinking
What is being tested?
Smartwatch to measure Blood Alcohol Level (BAL)
How many people
9 participants
Where
1 siteUnited States
Study dates
8 Jul 2019to 17 Feb 2020
Phase
Observational
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 21 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Study population: Moderate (non-problem) drinking healthy volunteers

Who may be able to join

  • 21-55 years of age.
  • Can provide proof of age with state or federal picture Identification.
  • Consumes an average of ≥7 standard drinks per week (women) or ≥14 drinks per week (men) over the 28 days prior to consent.
  • Has consumed at least 4 standard drinks on a single day on at least two days in the past 28 days prior to consent.
  • Has a blood alcohol level = 0.000 at time of consent.
  • Is able to understand and provide written informed consent.
  • Body weight ≥ 120 lbs and ≤ 250 pounds
  • Subjects can speak and understand English

Who cannot join

  • Currently seeking treatment for alcohol problems or purposefully abstaining from alcohol in an attempt to cut back or quit drinking.
  • Clinical Institute Withdrawal Assessment at ≥10.
  • Meets DSM-5 diagnosis of current major depression, bipolar disorder, schizophrenia, bulimia/anorexia, dementia, or a substance use disorder other than alcohol, nicotine, marijuana, or caffeine
  • If female, pregnant or nursing.
  • If female, does not agree to use an accepted form of birth control
  • Has medical or mental condition for which further alcohol exposure at the planned dose range would be contraindicated.
Show all 17Show fewer
  • Taking medication for which drinking would be contraindicated.
  • Clinically significant abnormal ECG.
  • AST or ALT ≥ 3x the upper limit of normal.
  • Current risk of suicidality.
  • Has taken medications that are used to treat AUD in the past 90 days.
  • Has received alcohol counseling or other non-pharmacologic intervention to treat alcohol use disorder in the past 90 days.
  • Has urine toxicology results positive for cocaine, opioids, amphetamines, buprenorphine, methadone, or methamphetamines.
  • Smokes greater than 5 cigarettes per day.
  • Unable to comfortably abstain from nicotine for a period of 8 hours.
  • Wearing cologne, perfume, aftershave or any other scented oil or alcohol-based beauty product on the day of the Alcohol Lab Visit.
  • Has dietary restrictions that would preclude participating.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Boston University Psychiatry Research Center, Clinical Studies Unit

    Boston, Massachusetts, 02118

Other trials in United States

About this study

Official title: Calibration Study of a Wearable Noninvasive Blood Alcohol Monitor

This trial is designed to test the accuracy of a wristwatch blood alcohol level monitor relative to alcohol breath testing. An established human laboratory self-administration procedure will be followed. Each subject will complete 2 clinic visits over a period of up to 21 days of participation. Study participation is comprised of a baseline assessment to determine eligibility and an alcohol self-administration trial to test the accuracy of the wrist watch blood alcohol level. Subjects will be recruited in two phases of 9 subjects each. The first phase will be conducted to validate a prototype of the wrist watch. The second phase will be conducted to validate a pre-production consumer model of the blood alcohol wrist watch.

Read the detailed description

In this proposed study, the objective is to further demonstrate the reliability of this printed electrochemical gas sensor in the form of a wearable device. This demonstration of reliability among human subjects is an essential part of product development. The monitor will be in a wristband or watch form, similar to a smart watch. This device will be modern, attractive and comfortable. It will also have smart watch features including measuring key physiological parameters (e.g., pulse) and eventually will have connectivity to apps on smart phones and other devices. The aim of the work is to provide a new, noninvasive transdermal alcohol monitor into the market. The transdermal alcohol monitoring market has few wearable products available and innovation has been lacking in this field. This new product will take advantage of current trends in wearable technology. As the public becomes more comfortable with wearable sensors, the blood alcohol monitor will become popular with people interested in health and fitness who want to track their alcohol intake. The product will provide a new, highly reliable and sensitive method for tracking blood alcohol level. This may be particularly beneficial to individuals who seek to reduce the risk of alcohol use by limiting peak blood alcohol level. If successful, this technology could be adopted in many areas including clinical and medical treatment, employee wellness programs, alcohol clinical trials, and as part of brief interventions that target at-risk drinkers.

The specific objective of this study is to determine whether the printed electrochemical gas sensor designed to measure blood alcohol level will be sensitive and reliable when compared to a standard measure of blood alcohol level taken by a breathalyzer. If this sensor proves sensitive to changes in blood alcohol level and can reliably measure blood alcohol level relative to a "gold standard" method, there are significant opportunities to use this technology in consumer health applications and clinical research.

Being tested
Smartwatch to measure Blood Alcohol Level (BAL)
Keywords
Wrist watch blood alcohol level, Blood alcohol, Objective alcohol measure
Medical subject headings
Alcohol Drinking

What participants receive

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

  • Smartwatch to measure Blood Alcohol Level (BAL)Other

    Subjects will wear a wristwatch with a sensor that measures blood alcohol level during a 1-hour period of consuming alcohol followed by a 5 hour observation period.

What is being measured

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

  1. Correlation Between Breathalyzer and Wristwatch Sensor BAL Measurements

    Wristwatch sensor BAL is continuously measured for entirety of 6-hour alcohol self administration trial. BAL from breathalyzer (BrAC) is measured at 15-minute intervals throughout 6-hour alcohol self administration trial. The correlation between wristwatch transdermal BAL (TAC) and breathalyzer BAL (BrAC) for all subjects will be calculated.

    Measured: 6 hours during alcohol self administration trial

Timeline

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

  1. First posted29 Jun 2018
  2. Study start8 Jul 2019
  3. Primary completion17 Feb 2020
  4. Study completion17 Feb 2020

Why it stopped: Extensive changes to the watch design would be needed to produce a robust device.

Resources

More details

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

Study design
Study type
Observational
Observational model
Other
Time perspective
Prospective
Enrolment
9 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03574181
Sponsor's protocol ID
H-36914
Other IDs
R44AA024651-02
Status last verified
Feb 2021
First submitted
20 Jun 2018
Last updated
18 Feb 2021
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of Alcohol Drinking, run by Boston Medical Center 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 8 inclusion and 17 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: stopped early, as of the sponsor's last update on 18 Feb 2021. 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. 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 18 Feb 2021). 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?

Correlation Between Breathalyzer and Wristwatch Sensor BAL Measurements (time frame: 6 hours during alcohol self administration trial). 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 18 Feb 2021.

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