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Chronic Hypercapnic Respiratory FailureTITRATIONNCT04327336

Randomized Controlled Trial Between Auto-titration and Manual Titration of Non-invasive Ventilation in Obesity Hypoventilation Syndrome

A study testing Manual Non invasive ventilation titration and Automatic Non invasive ventilation titration in people with Chronic Hypercapnic Respiratory Failure and Obesity Hypoventilation Syndrome, run by Sociedad Española de Neumología y Cirugía Torácica at 1 site in Spain.

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

Primary Objectives: To evaluate the effectiveness in the obesity hypoventilation syndrome (OHS) treatment with non-invasive ventilation (NIV) set manually by polysomnography compared to the same treatment with a respirator with automatic NIV adjustment, analyzing as primary variable PaCO2 and as operational variables… Read more about this study

Who is it for?
Ages 18 to 80 years
What is being tested?
Manual Non invasive ventilation titration and Automatic Non invasive ventilation titration
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
200 participants
Where
1 siteSpain
Study dates
1 Apr 2020to 14 Jul 2023
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 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Obesity Hypoventilation Syndrome defined by obesity (IMC≥30) and Hypercapnic respiratory failure (PCO 2> 45 mm Hg) in stable phase (PH≥7.35 without clinical signs of worsening in at least one previous month).
  • Age between 18-80 years.
  • Absence of other diseases causing hypercapnia as moderate or severe chronic obstructive pulmonary disease (FEV1> 70% predicted if FEV1 / FVC <70), neuromuscular, thoracic wall or metabolic disease; d) Absence of narcolepsy or restless legs syndrome.
  • Overcome correctly a 30 minutes test of treatment with VNI in wakefulness.

Who cannot join

  • Psychophysical disability for questionnaires.
  • Patients who cannot be evaluated by quality of life questionnaires because they present debilitating chronic disease.
  • Chronic nasal obstruction that prevents the use of NIV.
  • Pregnancy.
  • No informed consent obtained.

Trial locations and contacts

1 site in 1 country.

Spain1 site
  • Juan F. Masa

    Cáceres, 10003

Other trials in Spain

About this study

Official title: Effectiveness of Noninvasive Ventilation Adjusted Automatically in the Obesity Hypoventilation Syndrome

Primary Objectives: To evaluate the effectiveness in the obesity hypoventilation syndrome (OHS) treatment with non-invasive ventilation (NIV) set manually by polysomnography compared to the same treatment with a respirator with automatic NIV adjustment, analyzing as primary variable PaCO2 and as operational variables dropout rate for medical reasons and mortality. Secondary objectives: cost-effectiveness, clinical and functional improvement in wakefulness and during sleep, quality of life, blood pressure monitoring for 24 hours, incidence and evolution of cardiovascular events and use of health resources. Other objectives: 1) effectiveness of treatments in the following subgroups of patients: gender, age, socioeconomic status, severity of sleep apnea, VNI compliance, quality of life and comorbidities; 2) To evaluate the profile of patients with poor adherence to NIV based on clinical severity, gender, age and socioeconomic status in the whole sample and in both intervention groups.

Read the detailed description

Method: Prospective, blind researchers, randomized, controlled non-inferiority and cost-effectiveness relationship, with two parallel open groups. 200 OHS patients will be divided into two groups by simple randomization 1:1 and followed for one year. The premise of non-inferiority is -2 at the lower limit of the confidence interval 95% for the change in PCO2 between the arms being assessed by analysis of covariance, adjusted for 2-sided, age, sex, body mass index in intention-to-treat and per-protocol analysis. The cost-effectiveness will be performed by Bayesian techniques with sensitivity analysis.

Being tested
Manual Non invasive ventilation titration, Automatic Non invasive ventilation titration
Keywords
Chronic respiratory failure, Obesity, Non invasive mechanical ventilation
Medical subject headings
Obesity Hypoventilation Syndrome, Obesity

What participants receive

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

  • Manual Non invasive ventilation titrationDevice

    Manual Group: during a complete polysomnography, adding transcutaneous capnography and the basic ventilators curves, the ventilators setting will be adjusted in order to correct respiratory events and patient-ventilator asyncrony. A 10 hours face-to-face investigator training meeting is programmed before opening the inclusion period.

  • Automatic Non invasive ventilation titrationDevice

    Automatic Group: the A40 ventilator in the automatic AVAPS mode will be adjusted in order to achieve 8-10 ml/kg of ideal weight.

Study groups in NCT04327336
Study groupRoleWhat they receive
ManualActive comparatorIn this group non invasive mechanical ventilation will be manually titrated during a polysomnography. The Philips A40 ventilator will be used in Spontaneous-Timed (ST) mode.
Receives: Device: Manual Non invasive ventilation titration
AutomaticActive comparatorIn this group the ventilator will run in an automatic mode (AVAPS) with the same Phillips A40 ventilator.
Receives: Device: Automatic Non invasive ventilation titration

What is being measured

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

  1. Change in PaCO2 between arms

    Arterial blood gases while room air breathing expressed in mmHg

    Measured: 1 year

Secondary outcomes (28)
  1. Cost-effectiveness analysis by primary outcome

    Cost-effectiveness analysis based on the primary outcome in mmHg Differences in within trial costs will be related with the differences in effectiveness (primary outcome) between arms using a probabilistic Bayesian approach to calculate the cost-effectiveness plane.

    Measured: 1 year

  2. Cost-effectiveness analysis by QALY

    Cost-effectiveness analysis based on the quality adjusted life year (QALY) Differences in within trial costs will be related with the differences in effectiveness (QALY) between arms using a probabilistic Bayesian approach to calculate the cost-effectiveness plane.

    Measured: 1 year

  3. Change in subjective daytime sleepiness

    Sleepiness evaluated by Epworth sleepiness scale, range from 0 to 24, being 0 the best result and 24 the worst.

    Measured: 1 year

  4. Change in Quality of life measured by Functional Sleep Outcomes of Sleep Questionnaire (FOSQ)

    Quality of life measured by Functional Sleep Outcomes of Sleep Questionnaire (FOSQ), range from 0 to 120, being 0 the worst result and 120 the best result .

    Measured: 1 year

  5. Change in Quality of life measured by visual analogical wellbeing scale (VAWS)

    Quality of life measured by visual analogical well-being scale (VAWS), range from 0 to 100, being 0 the worst result and 120 the best result .

    Measured: 1 year

  6. Change in Quality of life measured by Euroqol 5D.

    Quality of life measured by Euroqol 5D, range from 0 to 1, being 0 the worst result and 1 the best result .

    Measured: 1 year

  7. Change in Quality of life measured by Short Form-36 (SF36), Mental component

    Quality of life measured by Short Form-36 (SF36) Mental component,range from 0 to 100, being 0 the worst result and 100 the best result.

    Measured: 1 year

  8. Change in Quality of life measured by Short Form-36 (SF36), Physical component

    Quality of life measured by Short Form-36 (SF36) Physical component,range from 0 to 100, being 0 the worst result and 100 the best result.

    Measured: 1 year

  9. Change in Bicarbonate arterial blood concentration

    Arterial blood gases while breathing room air expressed in mmol/L

    Measured: 1 year

  10. Change in PaO2

    Arterial blood gases while breathing room air expressed PaO2 in mmHg

    Measured: 1 year

  11. Change in pH

    Arterial blood gases while breathing room air

    Measured: 1 year

  12. Change in polysomnographic Sleep periods

    Standard polysomnography. time of sleep periods (Stage 1,2,3,4 and REM) in minutes.

    Measured: 1 year

  13. Change in Arousal Index

    Standard polysomnography, number of arousals per sleep hour

    Measured: 1 year

  14. Change in Apnea-Hypopnea index

    Standard polysomnography, number of apneas and hypoapneas per sleep hour

    Measured: 1 year

  15. Change in Oxygen desaturation index

    Standard polysomnography, number of 3% or more Oxygen desaturations per sleep hour

    Measured: 1 year

  16. Change in Sleep time with Oxygen saturation below 90%

    Standard polysomnography, percentage of sleep time with oxygen saturation below 90%

    Measured: 1 year

  17. Change in polysomnographic parameters: Total Sleep time (TTS)

    Standard polysomnography, time in minutes

    Measured: 1 year

  18. Change in the blood pressure monitoring

    The blood pressure will be monitored during 24 hours with a Blood Pressure Monitoring device before (baseline) and after intervention (1 year) in both arms measured in mmHg. Change in the mean blood pressure will be compared between arms

    Measured: at baseline and after a year

  19. Incidental cardiovascular events

    New hypertension diagnosis or anti-hypertensive treatment, atrial fibrillation, hospitalization for nonfatal myocardial infarction or instable angina, nonfatal stroke or transient ischemic attack or for heart failure episode, and cardiovascular death. Data obtained from official electronic health care databases

    Measured: 1 year

  20. Health care resources utilization: Hospital admission

    Hospital admission measured in number of events

    Measured: 1 year

  21. Health care resources utilization: Hospital duration

    Hospital duration measured in days of hospitalization

    Measured: 1 year

  22. Health care resources utilization: ICU admission

    ICU admission measured in numbers of events

    Measured: 1 year

  23. Health care resources utilization: ICU duration

    ICU duration measured in days of UCI admissions

    Measured: 1 year

  24. Health care resources utilization: emergency visits

    Emergency visits measured in number of events

    Measured: 1 year

  25. Health care resources utilization: primary care visits

    Primary care visits measured in number of events

    Measured: 1 year

  26. Health care resources utilization: specialist visits

    Specialist visits measured in number of events

    Measured: 1 year

  27. Incidence of new adverse event

    Number of adverse events based in CTCAE v4.0

    Measured: 1 year

  28. Side effects

    Incidence or side effects of NIV in follow-up visits: excessive noise, headache, claustrophobia, difficulty in sleep conciliation or maintenance, expiration discomfort.

    Measured: 1 year

Timeline

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

  1. First posted31 Mar 2020
  2. Study start1 Apr 2020
  3. Primary completion1 Jul 2023
  4. Study completion14 Jul 2023

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Prospective, Randomized, double arm, double blind controlled trial.
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
200 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04327336
Sponsor's protocol ID
PI16/01704
Acronym
TITRATION
Status last verified
Nov 2023
First submitted
15 May 2018
Last updated
27 Nov 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Mokhlesi B, Kryger MH, Grunstein RR. Assessment and management of patients with obesity hypoventilation syndrome. Proc Am Thorac Soc. 2008 Feb 15;5(2):218-25. doi: 10.1513/pats.200708-122MG.

    PubMed 18250215
  • Nowbar S, Burkart KM, Gonzales R, Fedorowicz A, Gozansky WS, Gaudio JC, Taylor MR, Zwillich CW. Obesity-associated hypoventilation in hospitalized patients: prevalence, effects, and outcome. Am J Med. 2004 Jan 1;116(1):1-7. doi: 10.1016/j.amjmed.2003.08.022.

    PubMed 14706658
  • Berg G, Delaive K, Manfreda J, Walld R, Kryger MH. The use of health-care resources in obesity-hypoventilation syndrome. Chest. 2001 Aug;120(2):377-83. doi: 10.1378/chest.120.2.377.

    PubMed 11502632
  • Lopez-Jimenez MJ, Masa JF, Corral J, Teran J, Ordaz E, Troncoso MF, Gonzalez-Mangado N, Gonzalez M, Lopez-Martinez S, De Lucas P, Marin JM, Marti S, Diaz-Cambriles T, Diaz-de-Atauri J, Chiner E, Aizpuru F, Egea C, Romero A, Benitez JM, Sanchez-Gomez J, Golpe R, Santiago-Recuerda A, Gomez S, Barbe F, Bengoa M; Grupo cooperativo. Mid- and Long-Term Efficacy of Non-Invasive Ventilation in Obesity Hypoventilation Syndrome: The Pickwick's Study. Arch Bronconeumol. 2016 Mar;52(3):158-65. doi: 10.1016/j.arbres.2015.10.003. Epub 2015 Dec 4. English, Spanish.

    PubMed 26656679
  • Masa JF, Celli BR, Riesco JA, Hernandez M, Sanchez De Cos J, Disdier C. The obesity hypoventilation syndrome can be treated with noninvasive mechanical ventilation. Chest. 2001 Apr;119(4):1102-7. doi: 10.1378/chest.119.4.1102.

    PubMed 11296176
  • Perez de Llano LA, Golpe R, Ortiz Piquer M, Veres Racamonde A, Vazquez Caruncho M, Caballero Muinelos O, Alvarez Carro C. Short-term and long-term effects of nasal intermittent positive pressure ventilation in patients with obesity-hypoventilation syndrome. Chest. 2005 Aug;128(2):587-94. doi: 10.1378/chest.128.2.587.

    PubMed 16100142
  • Janssens JP, Derivaz S, Breitenstein E, De Muralt B, Fitting JW, Chevrolet JC, Rochat T. Changing patterns in long-term noninvasive ventilation: a 7-year prospective study in the Geneva Lake area. Chest. 2003 Jan;123(1):67-79. doi: 10.1378/chest.123.1.67.

    PubMed 12527605
  • Masa JF, Corral J, Alonso ML, Ordax E, Troncoso MF, Gonzalez M, Lopez-Martinez S, Marin JM, Marti S, Diaz-Cambriles T, Chiner E, Aizpuru F, Egea C; Spanish Sleep Network. Efficacy of Different Treatment Alternatives for Obesity Hypoventilation Syndrome. Pickwick Study. Am J Respir Crit Care Med. 2015 Jul 1;192(1):86-95. doi: 10.1164/rccm.201410-1900OC.

    PubMed 25915102
  • Piper AJ, Wang D, Yee BJ, Barnes DJ, Grunstein RR. Randomised trial of CPAP vs bilevel support in the treatment of obesity hypoventilation syndrome without severe nocturnal desaturation. Thorax. 2008 May;63(5):395-401. doi: 10.1136/thx.2007.081315. Epub 2008 Jan 18.

    PubMed 18203817
  • Borel JC, Tamisier R, Gonzalez-Bermejo J, Baguet JP, Monneret D, Arnol N, Roux-Lombard P, Wuyam B, Levy P, Pepin JL. Noninvasive ventilation in mild obesity hypoventilation syndrome: a randomized controlled trial. Chest. 2012 Mar;141(3):692-702. doi: 10.1378/chest.10-2531. Epub 2011 Sep 1.

    PubMed 21885724
  • Berry RB, Chediak A, Brown LK, Finder J, Gozal D, Iber C, Kushida CA, Morgenthaler T, Rowley JA, Davidson-Ward SL; NPPV Titration Task Force of the American Academy of Sleep Medicine. Best clinical practices for the sleep center adjustment of noninvasive positive pressure ventilation (NPPV) in stable chronic alveolar hypoventilation syndromes. J Clin Sleep Med. 2010 Oct 15;6(5):491-509.

    PubMed 20957853
  • Gonzalez-Bermejo J, Perrin C, Janssens JP, Pepin JL, Mroue G, Leger P, Langevin B, Rouault S, Rabec C, Rodenstein D; SomnoNIV Group. Proposal for a systematic analysis of polygraphy or polysomnography for identifying and scoring abnormal events occurring during non-invasive ventilation. Thorax. 2012 Jun;67(6):546-52. doi: 10.1136/thx.2010.142653. Epub 2010 Oct 22.

    PubMed 20971982
  • Johnson KG, Johnson DC. Treatment of sleep-disordered breathing with positive airway pressure devices: technology update. Med Devices (Auckl). 2015 Oct 23;8:425-37. doi: 10.2147/MDER.S70062. eCollection 2015.

    PubMed 26604837
  • Jaye J, Chatwin M, Dayer M, Morrell MJ, Simonds AK. Autotitrating versus standard noninvasive ventilation: a randomised crossover trial. Eur Respir J. 2009 Mar;33(3):566-71. doi: 10.1183/09031936.00065008.

    PubMed 19251798
  • Sanchez-Quiroga MA, Benitez I, Mokhlesi B, Gomez de Terreros FJ, Roncero A, Ruiz-Martinez C, Breton M, Troncoso MF, Herrero J, Lopez-Martin S, Lopez-Padilla D, Gonzalez M, Diaz de Teran T, Caballero-Eraso C, Marti S, Penacoba P, Galdeano M, Munoz-Mendez J, Barca J, Barbe F, Utrabo I, Duran JA, Masa JF; Spanish Sleep Network. Effectiveness of automatically-adjusted vs manually-adjusted noninvasive ventilation in obesity hypoventilation syndrome: a randomized clinical trial. Am J Respir Crit Care Med. 2026 May 1;212(5):989-1004. doi: 10.1093/ajrccm/aamag018.

    PubMed 41738216

Questions about this trial

What is this clinical trial studying?

A study testing Manual Non invasive ventilation titration and Automatic Non invasive ventilation titration in people with Chronic Hypercapnic Respiratory Failure and Obesity Hypoventilation Syndrome, run by Sociedad Española de Neumología y Cirugía Torácica at 1 site in Spain.

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 4 inclusion and 5 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 27 Nov 2023. 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 Spain. 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?

Change in PaCO2 between arms (time frame: 1 year). 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 NCT04327336, which also lists 15 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 27 Nov 2023.

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