Obstructive Sleep Apnea (OSA)NCT00945776
Weekly Phone Calls Versus Brief Patient Education to Improve CPAP (Continuous Positive Airway Pressure) Compliance
A study testing Weekly phone calls and Frequently asked questions in people with Obstructive Sleep Apnea (OSA), run by CAMC Health System at 1 site in United States.
Trial summary
The purpose of this study is to compare the effects of three interventions on CPAP adherence. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Obstructive Sleep Apnea (OSA)
- What is being tested?
- Weekly phone calls and Frequently asked questions
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 128 participants
- Where
- 1 siteUnited States
- Study dates
- Apr 2008to Jun 2009
- Phase
- Interventional
- 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
- All new patients undergoing of the Sleep Center suspected of having sleep apnea and undergoing sleep studies
Who cannot join
- Refusal to participate, or not suspected of having sleep apnea prior to the study
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Weekly Phone Calls vs. Brief Patient Education to Improve CPAP Compliance: A Randomized Controlled Trial
The purpose of this study is to compare the effects of three interventions on CPAP adherence.
Read the detailed description
To determine whether there is a need for a more intensive one on one interaction with the patient in order to improve CPAP usage. And also to try to identify in general which population of patients may require a more intensive intervention.
- Conditions
- Obstructive Sleep Apnea (OSA)
- Being tested
- Weekly phone calls, Frequently asked questions, Usual care
- Keywords
- OSA, CPAP
- Medical subject headings
- Sleep Apnea, Obstructive
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Weekly phone callsBehavioural
Calling weekly to answer questions regarding CPAP usage.
Frequently asked questionsBehavioural
Answers to frequently asked questions in pre-printed form.
Usual careBehavioural
Answers will be provided by the renter of the equipment, and the sleep center if asked in addition to explanations by the sleep specialist.
| Study group | Role | What they receive |
|---|---|---|
| Weekly phone calls | Active comparator | Will be called weekly to answer questions regarding usage. Receives: Behavioral: Weekly phone calls |
| Frequently asked questions | Active comparator | Providing written general answers to commonly asked questions. Receives: Behavioral: Frequently asked questions |
| Usual care | Active comparator | Not described Receives: Behavioral: Usual care |
What is being measured
The primary outcome is the main question the study is designed to answer.
To determine which intervention will improve CPAP compliance in sleep apnea
Measured: 6 weeks
Secondary outcomes (1)
To try to identify which individual characteristics within a group may require a specific intervention
Measured: 6 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted24 Jul 2009 (estimated)
- Study startApr 2008
- Primary completionJun 2009
- Study completionJun 2009
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Obstructive Sleep Apnea (OSA)Studies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Enrolment
- 128 participants (actual)
Sponsor and investigators
- Lead sponsor
- CAMC Health System
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- George L Zaldivar, M.D., Principal investigator, CAMC Health System
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00945776
- Sponsor's protocol ID
- 08-04-2047
- Status last verified
- Jul 2009
- First submitted
- 23 Jul 2009
- Last updated
- 10 Sep 2026
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 10 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Weekly Phone Calls vs. Brief Patient Education to Improve CPAP Compliance: A Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT00945776
- Acronym / sponsor ID
- 08-04-2047
- Conditions
- Obstructive Sleep Apnea (OSA)
- Keywords
- OSA, CPAP
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 128 participants (actual)
- Lead sponsor
- CAMC Health SystemUniversity, hospital or other
- Study start
- Apr 2008
- Primary completion
- Jun 2009 (actual)
- Study completion
- Jun 2009 (actual)
- First posted
- 24 Jul 2009 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this study is to compare the effects of three interventions on CPAP adherence.
Detailed description
To determine whether there is a need for a more intensive one on one interaction with the patient in order to improve CPAP usage. And also to try to identify in general which population of patients may require a more intensive intervention.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Weekly phone calls | Active comparator | Behavioral: Weekly phone callsWill be called weekly to answer questions regarding usage. |
| Frequently asked questions | Active comparator | Behavioral: Frequently asked questionsProviding written general answers to commonly asked questions. |
| Usual care | Active comparator | Behavioral: Usual care |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- All new patients undergoing of the Sleep Center suspected of having sleep apnea and undergoing sleep studies
Key exclusion criteria (1 listed)
- Refusal to participate, or not suspected of having sleep apnea prior to the study
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Weekly phone callsCalling weekly to answer questions regarding CPAP usage. | Behavioural | Weekly phone calls |
| Frequently asked questionsAnswers to frequently asked questions in pre-printed form. | Behavioural | Frequently asked questions |
| Usual careAnswers will be provided by the renter of the equipment, and the sleep center if asked in addition to explanations by the sleep specialist. | Behavioural | Usual care |
Primary outcome
To determine which intervention will improve CPAP compliance in sleep apnea
Time frame: 6 weeks
1 secondary outcome
To try to identify which individual characteristics within a group may require a specific intervention
Time frame: 6 weeks
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 10 Sep 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
George L Zaldivar, M.D. principal investigator
CAMC Health System
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Weekly phone calls and Frequently asked questions in people with Obstructive Sleep Apnea (OSA), run by CAMC Health System 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 1 inclusion and 1 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 10 Sep 2026. 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?
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?
To determine which intervention will improve CPAP compliance in sleep apnea (time frame: 6 weeks). 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 10 Sep 2026.