Evaluation of ApneaLink Plus Scoring Capabilities

April 29, 2020 updated by: ResMed

The purpose of this study is to investigate the following topics:

  • Determine the accuracy of ApneaLink Plus in separating Apneas into Obstructive Apneas, Mixed Apneas and Central Apneas.
  • Determine the accuracy of ApneaLink Plus in scoring Hypopneas according to the 2008 guidelines of the AASM = American Academy of Sleep Medcine.
  • Determine whether patients can start and stop the recorder and are able to attach the additional effort sensor by themselves using the patient instruction sheet

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

  • Determine the accuracy of ApneaLink Plus in separating Apneas into Obstructive Apneas, Mixed Apneas and Central Apneas.
  • Determine the accuracy of ApneaLink Plus in scoring Hypopneas according to the 2008 guidelines of the AASM = American Academy of Sleep Medcine.
  • Determine whether patients can start and stop the recorder and are able to attach the additional effort sensor by themselves using the patient instruction sheet

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
23

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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

  • Germany
    • Baden-Württemberg
      • Wangen Im Allgäu, Baden-Württemberg, Germany, 88239
        • Medizinische Klinik für Atemwegserkrankungen und Allergien, Fachkliniken Wangen

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

14 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Willing to give written informed consent
  • Adult patients who are 18 years of age or older
  • No alcohol consumption 12 hrs before and during the trial period
  • Normally sleep more than 3 hours per night

Exclusion Criteria:

  • Unable to comprehend written and spoken German.
  • Pregnant
  • Patients who use of Bilevel PAP or CPAP therapy during the PSG
  • Unsuitable for inclusion in the opinion of the investigator

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

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Other: AL + polysomnography
Participant wears an Apnea Link sleep apnoea screening device during the polysomnography to detect apnoeas (obstructive, central).
Device: ApneaLink Plus
Device used to evaluate for the presence of obstructive, central or mixed apneas
Other Names:
  • AL Plus

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Assessment of the Apnoea-Hypopnea-Index (Number of Apneas (All Apneas, Obstructive, Mixed, Central) and Number of Hypopneas) Between ApneaLink Plus and a PSG System Within the Same Evaluation Period
Time Frame: one night
Apnoea is defined as a decrease in flow of ≥90% from baseline for at least 10 seconds; hypopnea is a decrease in flow ≥30% from baseline for at least 10 seconds and an oxygen desaturation of ≥4%; obstructive: breathing efforts are ongoing; central: no breathing efforts
one night
Correlation Coefficient of Apnoea-Hypopnea-Index (AHI) (PSG) - AHI (AL)
Time Frame: 1 night
The AHI (PSG) values and AHI ApneaLink Plus (AL) value will be collected in one graph (Bland-Altmann Plot) and the correlation coefficient will be calculated. A correlation of >75% will be seen as threshold for validity.
1 night
Correlation Coefficient of Apnoea-Index (AI) (PSG) - AI (AL)
Time Frame: 1 night
The AI (PSG) values and AI ApneaLink Plus (AL) value will be collected in one graph (Bland-Altmann Plot) and the correlation coefficient will be calculated. A correlation of >75% will be seen as threshold for validity.
1 night
Correlation Coefficient of Obstructive-Apnoea-Index (OAI) (PSG) - OAI (AL)
Time Frame: 1 night
The OAI (PSG) values and OAI ApneaLink Plus (AL) value will be collected in one graph (Bland-Altmann Plot) and the correlation coefficient will be calculated. A correlation of >75% will be seen as threshold for validity.
1 night
Correlation Coefficient of Central-Apnoea-Index (CAI) (PSG) - CAI (AL)
Time Frame: 1 night
The CAI (PSG) values and CAI ApneaLink Plus (AL) value will be collected in one graph (Bland-Altmann Plot) and the correlation coefficient will be calculated. A correlation of >75% will be seen as threshold for validity.
1 night
Correlation Coefficient of Apnoea-Index (HI) (PSG) - HI (AL)
Time Frame: 1 night
The HI (PSG) values and HI ApneaLink Plus (AL) value will be collected in one graph (Bland-Altmann Plot) and the correlation coefficient will be calculated. A correlation of >75% will be seen as threshold for validity.
1 night
Correlation Coefficient of Obstructive-Apnoea-Index (ODI) (PSG) - ODI (AL)
Time Frame: 1 night
The ODI (PSG) values and ODI ApneaLink Plus (AL) value will be collected in one graph (Bland-Altmann Plot) and the correlation coefficient will be calculated. A correlation of >75% will be seen as threshold for validity.
1 night

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
ResMed

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Knut Joechle, PhD, ResMed
  • Principal Investigator: Heribert Knape, MD, Medizinische Klinik für Atemwegserkrankungen und Allergien, Fachkliniken Wangen

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

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 1, 2008

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 1, 2009

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 1, 2009

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 13, 2009

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 14, 2009

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 15, 2009

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 12, 2020

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 29, 2020

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2020

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • D2231-109

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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