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Sleep Apnea SyndromeNCT00746928

Cardiovascular Consequences of Intermittent Hypoxia in Healthy Subjects

A study testing Chronic Intermittent Hypoxia in people with Sleep Apnea Syndrome, run by University Hospital, Grenoble at 1 site in France.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The study is a prospective field evaluation to assess the effects of the chronic Intermittent Hypoxia exposure in 12 healthy humans. Precisely, the study was designed to : Set up a new model of Chronic Intermittent Hypoxia (CIH) applied to healthy human. Read more about this study

Who is it for?
Ages 18 years and olderHealthy volunteers can take part
Conditions the study is for
Sleep Apnea Syndrome
What is being tested?
Chronic Intermittent Hypoxia
How many people
12 participants
Where
1 siteFrance
Study dates
Sep 2005to Oct 2008
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
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Healthy subjects

Who cannot join

  • Any history or significant medical condition

Trial locations and contacts

1 site in 1 country.

France1 site
  • Pulmonary Function and sleep Lab, CHU Grenoble

    Grenoble, 38 000

Other trials in France

About this study

The study is a prospective field evaluation to assess the effects of the chronic Intermittent Hypoxia exposure in 12 healthy humans.

Precisely, the study was designed to :

Set up a new model of Chronic Intermittent Hypoxia (CIH) applied to healthy human. This CIH is mimicking the CIH undergone by patients suffering from Sleep Apnea Syndrome.

Evaluate the cardiovascular effect of CIH. Neuronal and humoral sympathetic control, blood pressure control, vascular resistance.

Evaluate the Sleep quality, the ventilation under exposure and the long terms effect on ventilation control of CIH (central and peripheral chemoreflex).

Investigates the biological aspects of CIH exposure.

Being tested
Chronic Intermittent Hypoxia
Keywords
Blood pressure, Hypertension, sympathetic control, chemosensitivity, baroreflex
Medical subject headings
Sleep Apnea Syndromes, Hypertension

What participants receive

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

  • Chronic Intermittent HypoxiaOther

    Chronic Intermittent Hypoxia mimicking the CIH undergone by patients suffering from Sleep Apnea Syndrome, is applied to Healthy subject during 8 hours a day (nights) for a 14 days period. The cycle of intermittent Hypoxia is 30 drop in SaO2 per hours with a 10% decrease in SaO2.

What is being measured

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

  1. Blood Pressure

    Measured: Two Weeks

Secondary outcomes (3)
  1. Neuronal and humoral sympathetic control and vascular resistance.

    Measured: Two weeks

  2. Sleep quality

    Measured: Two Weeks

  3. The ventilation under exposure and the long terms effect on ventilation control of CIH (central and peripheral chemoreflex)

    Measured: two weeks

Timeline

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

  1. First posted4 Sep 2008 (estimated)
  2. Study startSep 2005
  3. Primary completionJul 2007
  4. Study completionOct 2008 (estimated)

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
Phase N/A
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00746928
Sponsor's protocol ID
05-CHUG-23
Status last verified
Sep 2008
First submitted
1 Sep 2008
Last updated
4 Sep 2008
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A study testing Chronic Intermittent Hypoxia in people with Sleep Apnea Syndrome, run by University Hospital, Grenoble at 1 site in France.

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: status not confirmed, as of the sponsor's last update on 4 Sep 2008. 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 France. 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?

Results are not available in the source record.

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?

Blood Pressure (time frame: Two 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 4 Sep 2008.

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