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Obstructive Sleep ApneaPhase 4NCT02714400

The Impact of Venlafaxine on Apnea Hypopnea Index in Obstructive Sleep Apnea

A Phase 4 study testing Venlafaxine in people with Obstructive Sleep Apnea, run by University of California, San Diego at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The investigators hypothesis is that obstructive sleep apnea (OSA) patients with a low arousal threshold may wake up too early during a respiratory event, before upper airway muscles can be activated to achieve stable ventilation. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Obstructive Sleep Apnea
What is being tested?
Venlafaxine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
20 participants
Where
1 siteUnited States
Study dates
Mar 2016to Jul 2016
Phase
Phase 4
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 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Ages 18-70 years
  • sleep study (with apnea hypopnea index>5)
  • Diagnosis of obstructive sleep apnea

Who cannot join

  • Any known cardiac (apart from treated hypertension), pulmonary (including uncontrolled asthma), renal, neurologic (including epilepsy), neuromuscular, or hepatic disease.
  • Susceptible to stomach ulcers.
  • co-administration of MAO inhibitors intended to treat psychiatric disorders (concurrently or within 14 days of discontinuing the MAO inhibitor); initiation of MAO inhibitor intended to treat psychiatric disorders within 7 days of discontinuing venlafaxine; initiation in patients receiving linezolid or intravenous methylene blue
  • Pregnant women.
  • History of hypersensitivity to Afrin, Lidocaine (all Aims) or venlafaxine
  • History of bleeding diathesis and/or gastrointestinal bleeding.
Show all 13Show fewer
  • Glaucoma and Urinary Retention
  • Use of any medications that may affect sleep or breathing.
  • Use of any medications that have known interaction with venlafaxine and the interaction may significantly increase the risk of the subject or decrease the therapeutic effect of the medication.
  • A psychiatric disorder, other than mild depression; e.g. schizophrenia, bipolar disorder, major depression, panic or anxiety disorders.
  • Substantial cigarette (>5/day), alcohol (>3oz/day) or use of illicit drugs.
  • More than 10 cups of beverages with caffeine (coffee, tea, soda/pop) per day.
  • Desaturations to below 70% lasting greater than 10 seconds in duration per event

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of California, San Diego

    San Diego, California, 92093

Other trials in United States

About this study

Official title: The Impact of Venlafaxine on Apnea Hypopnea Index in Patients With Obstructive Sleep Apnea

The investigators hypothesis is that obstructive sleep apnea (OSA) patients with a low arousal threshold may wake up too early during a respiratory event, before upper airway muscles can be activated to achieve stable ventilation. Thus, strategies to manipulate the respiratory arousal threshold could potentially improve the quality of sleep and sleep disordered breathing. Agents that raise arousal threshold are therefore likely to benefit some patients with OSA. The overall goal of this project is to determine the importance of the arousal threshold in OSA, determine which patients might benefit from a raised arousal threshold, and test this hypothesis by using pharmacological manipulation of the arousal threshold to achieve this goal.

Read the detailed description

This study is a randomized double-blinded crossover pilot study. The investigators will test whether Venlafaxine has important effects on the apnea hypopnea index. Venlafaxine is a serotonin-norepinephrine reuptake inhibitor (SNRI) for the treatment of depression and anxiety. Venlafaxine increases serum serotonin level, which may affect arousal threshold. Furthermore, higher serotonin level theoretically may improve muscle tone, including upper airway muscle. Therefore, the investigators hypothesize that venlafaxine may decrease arousal threshold and improve muscle tone, leading to improvement of OSA.

Eligible participants will undergo overnight polysomonography as described below and will receive either Venlafaxine(50 mg 2 hour prior to sleep) or placebo (in random order) followed roughly 7 days later with placebo or donepezil. This aim will allow us to test the impact of Venlafaxine on the apnea hypopnea index.

The change in apnea hypopnea index will be compared in the Venlafaxine groups with the placebo group.

Being tested
Venlafaxine, Placebo
Keywords
Obstructive Sleep Apnea, Arousal threshold, Venlafaxine
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.

  • VenlafaxineDrug

    Venlafaxine 50mg before sleep

  • PlaceboDrug

    One piece of placebo before sleep

Study groups in NCT02714400
Study groupRoleWhat they receive
VenlafaxineActive comparator50mg of Venlafaxine before sleep
Receives: Drug: Venlafaxine
PlaceboPlacebo comparatorOne piece of placebo before sleep
Receives: Drug: Placebo

What is being measured

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

  1. The Apnea Hypopnea Index

    The Apnea hypopnea index is an index used to indicate the severity of sleep apnea. It is represented by the number of apnea and hypopnea events per hour of sleep. The change from baseline in apnea hypopnea index after a single dose of Venlafaxine will be evaluated using overnight polysomnography. An apnea hypopnea index less than five events per hour is considered within normal limits.

    Measured: Baseline and 7-day follow up

  2. Nadir Oxygen Level During Sleep

    Change from baseline in nadir oxygen level during sleep after a single dose of Venlafaxine will be evaluated using overnight polysomnography. A lower blood oxygen saturation during sleep is associated with a more severe obstructive sleep apnea.

    Measured: Baseline and 7-day follow up

Secondary outcomes (3)
  1. Loop Gain

    Loop gain 1 is used to describe the stability of ventilatory control. The change from baseline in loop gain after a single dose of Venlafaxine will be estimated.

    Measured: Baseline and 7-day follow up

  2. Arousal Threshold

    Change from baseline in respiratory arousal threshold after single dose of Venlafaxine will be estimated.

    Measured: Baseline and 7-day follow up

  3. Sleep Efficiency

    Change from baseline in sleep efficiency after single dose of Venlafaxine will be estimated using overnight polysomnography.

    Measured: Baseline and 7-day follow up

Timeline

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

  1. First posted21 Mar 2016 (estimated)
  2. Study startMar 2016
  3. Primary completionJul 2016
  4. Study completionJul 2016

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Crossover
Masking
Triple blind
Who is masked
Participant, Care provider, Outcomes assessor
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02714400
Sponsor's protocol ID
UCSD141272ARM5-1
Status last verified
Apr 2020
First submitted
26 Feb 2016
Last updated
17 Apr 2020
Data monitoring committee
No

Publications

  • Eckert DJ, White DP, Jordan AS, Malhotra A, Wellman A. Defining phenotypic causes of obstructive sleep apnea. Identification of novel therapeutic targets. Am J Respir Crit Care Med. 2013 Oct 15;188(8):996-1004. doi: 10.1164/rccm.201303-0448OC.

    PubMed 23721582
  • Carter SG, Berger MS, Carberry JC, Bilston LE, Butler JE, Tong BK, Martins RT, Fisher LP, McKenzie DK, Grunstein RR, Eckert DJ. Zopiclone Increases the Arousal Threshold without Impairing Genioglossus Activity in Obstructive Sleep Apnea. Sleep. 2016 Apr 1;39(4):757-66. doi: 10.5665/sleep.5622.

    PubMed 26715227
  • Deacon NL, Jen R, Li Y, Malhotra A. Treatment of Obstructive Sleep Apnea. Prospects for Personalized Combined Modality Therapy. Ann Am Thorac Soc. 2016 Jan;13(1):101-8. doi: 10.1513/AnnalsATS.201508-537FR.

    PubMed 26569377
  • Edwards BA, Eckert DJ, McSharry DG, Sands SA, Desai A, Kehlmann G, Bakker JP, Genta PR, Owens RL, White DP, Wellman A, Malhotra A. Clinical predictors of the respiratory arousal threshold in patients with obstructive sleep apnea. Am J Respir Crit Care Med. 2014 Dec 1;190(11):1293-300. doi: 10.1164/rccm.201404-0718OC.

    PubMed 25321848
  • Eckert DJ, Younes MK. Arousal from sleep: implications for obstructive sleep apnea pathogenesis and treatment. J Appl Physiol (1985). 2014 Feb 1;116(3):302-13. doi: 10.1152/japplphysiol.00649.2013. Epub 2013 Aug 29.

    PubMed 23990246
  • Schmickl CN, Li Y, Orr JE, Jen R, Sands SA, Edwards BA, DeYoung P, Owens RL, Malhotra A. Effect of Venlafaxine on Apnea-Hypopnea Index in Patients With Sleep Apnea: A Randomized, Double-Blind Crossover Study. Chest. 2020 Aug;158(2):765-775. doi: 10.1016/j.chest.2020.02.074. Epub 2020 Apr 9.

    PubMed 32278781

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Venlafaxine in people with Obstructive Sleep Apnea, run by University of California, San Diego 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 3 inclusion and 13 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 17 Apr 2020. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 17 Apr 2020). 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?

The Apnea Hypopnea Index (time frame: Baseline and 7-day follow up). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02714400, which also lists 6 linked publications.

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 17 Apr 2020.

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