The Effect of Caffeine Reduction on Snoring and Quality of Life

December 29, 2013 updated by: Benjamin Littenberg, University of Vermont

Snoring is a problem for many people, often disturbing energy level, quality of sleep, and the relationship with a bed partner. Two observational studies that have indicated a relationship between the consumption of caffeine and snoring. The objective of this study will be to observe the degree of snoring and quality of sleep when caffeine intake is reduced over a period of four weeks. This will be a prospective, before-and-after study of a behavioral intervention.

This study will engage thirty adults who report snoring, drink two cups of coffee or more per day (or an equivalent amount of caffeine), and have a consistent bed partner who can report on snoring severity. Both subject and partner will be asked to fill out a diary each day. The subjects will record the type of caffeine consumed, time at which each beverage was ingested, the total minutes of physical exercise, any caffeine withdrawal symptoms, quality of sleep, and energy in the morning. The partner (reporter) will rate his or her own sleep quality and energy in the morning, as well as the snoring level of the subject. Beginning the second week of the study, the subject will reduce caffeine intake to half the baseline consumption, and on the third week, will eliminate caffeine altogether.

At the end of each week, the participants will be asked to mail their diaries in to the researchers and start a new series of entries. The study team will also call each week to answer any questions or concerns of the subject and reporter, and encourage continued reporting. When six weeks have elapsed following the completion of the last diary, the investigators will make a final call to the participants to record their current level of snoring, quality of sleep, and daily energy level.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Anticipated)

30

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Vermont
      • Burlington, Vermont, United States, 05401
        • University of Vermont

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • age at least 18 years
  • consume 16 ounces of coffee or 25 ounces of caffeinated soda or tea
  • consistent bed partner willing to serve as reporter
  • reported as a loud snorer (6 or more on 10 point scale) most days of an average week

Exclusion Criteria:

  • pregnant
  • diagnosed by doctor with sleep apnea, facial or airways defect
  • any facial or airways surgery that has changed snoring pattern.
  • upper airways infection that requires antibiotics, cough suppressants, etc. in the last month
  • use any continuous positive airway pressure (CPAP) device or dental appliance
  • bed partner hearing impairment or defects.

Study Plan

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

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: A
After one week at usual levels of caffeine use, patients are asked to reduce their caffeine consumption to no more than 2 cups of coffee (or equivalent) for one week and then to zero for two weeks.
Behavioral: Caffeine reduction
Reduction in daily caffeine consumption from usual amounts to none.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Snoring
Time Frame: 4 weeks
4 weeks

Secondary Outcome Measures

Outcome Measure
Time Frame
Sleep Quality
Time Frame: 4 weeks
4 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Vermont

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 2008

Primary Completion (Actual)

June 1, 2011

Study Completion (Actual)

June 1, 2011

Study Registration Dates

First Submitted

March 18, 2008

First Submitted That Met QC Criteria

March 18, 2008

First Posted (Estimate)

March 24, 2008

Study Record Updates

Last Update Posted (Estimate)

December 31, 2013

Last Update Submitted That Met QC Criteria

December 29, 2013

Last Verified

December 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 08-123

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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