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Pulmonary Arterial HypertensionNCT04241497

Home-based Exercise Training in Patients With Pulmonary Arterial Hypertension: Effect on Skeletal Muscular Function and Metabolism

A study testing Home-based rehabilitation in people with Pulmonary Arterial Hypertension and Exercise Training, run by Laval University at 1 site in Canada.

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 The sponsor has not verified this record for over two years, so it may be out of date.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

Pulmonary Arterial Hypertension has gone from a disease that causes rapid death to a more chronic condition. Yet, improved survival is associated with major challenges for clinicians as most patients remain with poor quality of life and limited exercise capacity. Read more about this study

Who is it for?
Ages 18 to 100 years
What is being tested?
Home-based rehabilitation
Could I receive a placebo?
No, everyone receives an active treatment
How many people
10 participants
Where
1 siteCanada
Study dates
Mar 2020to Mar 2021
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 100 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Men or women > 18 years old
  • Pulmonary Arterial Hypertension group 1: idiopathic, genetics, drug or toxin-induced, associated with connective tissue, HIV, portal hypertension, congenital heart disease.
  • Diagnosis performed by right heart catheterization with Pulmonary Arterial Pressure⩾ 20 mmHg, pulmonary artery occlusion pressure <15 and pulmonary vascular resistance >3 Wood units
  • New York Heart Association II or III and a 6-Minute Walk Test < 500m
  • Patient stable without therapeutic modification within the last 3 months
  • Patient having wireless internet at home
  • Consciously informed and written by the patient

Who cannot join

  • Syncope within the last 6 month
  • Metabolic comorbidity (eg Diabetes)
  • Musculoskeletal impairment that does not allow physical exercise
  • Patient unable or with contraindications to perform a cardio pulmonary exercise testing
  • Patient with pulmonary veno-occlusive disease
  • Presence of a permanent pacemaker or other contraindication to MRI
  • Pregnant or breastfeeding woman
  • Age <18 years

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • University Institute of Cardiology and Respirology of Quebec

    Québec, QC G1V 4G5

    Marius Lebret, PhD, 418 656 8711 ext. 2560, marius.lebret@criucpq.ulaval.ca

    Steeve Provencher, MD, 418 656 8711 ext. 5526, steeve.provencher@criucpq.ulaval.ca

Other trials in Canada

About this study

Pulmonary Arterial Hypertension has gone from a disease that causes rapid death to a more chronic condition. Yet, improved survival is associated with major challenges for clinicians as most patients remain with poor quality of life and limited exercise capacity. The effects of exercise training on exercise capacity have been largely evaluated and showed an improvement in 6-minutes walking distance (6MWD), peak V'O2. It is also known that exercise program improves quality of life. Maximal volitional and nonvolitional strength of the quadriceps are reduced in patients with Pulmonary Arterial Hypertension and correlated to exercise capacity. Moreover, on the cellular level, alterations are observed in both the respiratory as well as the peripheral muscles. Muscle fiber size has been reported to be decreased in some studies or conversely unaltered in human and animal models. Reduction in type I fibers and a more anaerobic energy metabolism has also been reported, but not in all studies. Likewise, a loss in capillary density in quadriceps of patients with Pulmonary Arterial Hypertension and rats has been reported, but could not be confirmed in other studies. While the impact of exercise training on clinical outcomes such as exercise capacity or quality of life is well known, this data highlight the fact that the underlying causes of peripheral muscle weakness as well as the mechanisms underlying the clinical improvements observed with exercise programs are not completely understood. Improvement of muscle cell metabolism in part via the enhancement of oxidative cellular metabolism and decrease in intracellular lipid accumulation may play a role in improving muscle function and exercise capacity.

In this study, we intend to evaluate the impact of a 12 weeks home-based rehabilitation program on peripheral muscle function and metabolism, focusing on lipid infiltration, oxidative metabolism and epigenetic factors that can be involved in metabolic syndrome, in patients with Pulmonary Arterial Hypertension.

Read the detailed description

The 12 weeks home-based rehabilitation program is detailed as follows:

  • 1st sessions at the hospital, in the presence of a physiotherapist/kinesiologist
  • 3 weeks of supervised home-based rehabilitation (using a telemonitoring system) 3 times a weeks
  • 9 weeks of unsupervised home-based rehabilitation (one phone call a week)

Patients will be evaluated at baseline and at endpoint (12 weeks)

Being tested
Home-based rehabilitation
Medical subject headings
Pulmonary Arterial Hypertension

What participants receive

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

  • Home-based rehabilitationBehavioural

    1 supervised exercise session at the hospital; 3 weeks of supervised home-based exercise training (3x/week); 9 weeks of unsupervised home-based exercise training (3x/week)

Study groups in NCT04241497
Study groupRoleWhat they receive
Patients with Pulmonary Arterial HypertensionExperimental12 weeks home-based rehabilitation
Receives: Behavioral: Home-based rehabilitation

What is being measured

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

  1. Epigenetic factors influencing muscle metabolism

    Transcriptome analysis using RNA-seq

    Measured: Changes between baseline and 12 weeks of exercise rehabilitation

Secondary outcomes (14)
  1. Intramyocellular lipid accumulation

    H-magnetic resonance spectroscopy and Oil red O technique

    Measured: Changes between baseline and 12 weeks of exercise rehabilitation

  2. Muscular mitochondrial phosphorylation (ATP synthesis)

    phosphorus-31 Magnetic resonance spectroscopy saturation transfer

    Measured: Changes between baseline and 12 weeks of exercise rehabilitation

  3. Proportion of muscle fiber types

    Ethanol modified technique

    Measured: Changes between baseline and 12 weeks of exercise rehabilitation

  4. HbA1c

    Serum HbA1c

    Measured: Changes between baseline and 12 weeks of exercise rehabilitation

  5. Insulin

    Serum Insulin

    Measured: Changes between baseline and 12 weeks of exercise rehabilitation

  6. Glucose

    Serum glucose

    Measured: Changes between baseline and 12 weeks of exercise rehabilitation

  7. Apolipoprotein A1

    Serum Apolipoprotein A1

    Measured: Changes between baseline and 12 weeks of exercise rehabilitation

  8. Adiponectin

    Serum Adiponectin

    Measured: Changes between baseline and 12 weeks of exercise rehabilitation

  9. Leptin

    Serum leptin

    Measured: Changes between baseline and 12 weeks of exercise rehabilitation

  10. Volitional strength quadriceps

    Maximal Voluntary force using isometric force meter

    Measured: Changes between baseline and 12 weeks of exercise rehabilitation

  11. Non-volitional strength of the quadriceps

    Maximal non-Voluntary force using isometric force meter and magnetic stimulation of the femoral neve

    Measured: Changes between baseline and 12 weeks of exercise rehabilitation

  12. Maximal exercise capacity

    Cardio-pulmonary exercise testing on a cycloergometer

    Measured: Changes between baseline and 12 weeks of exercise rehabilitation

  13. Functional Exercise capacity

    6-MWD

    Measured: Changes between baseline and 12 weeks of exercise rehabilitation

  14. Quality of life (QOL)

    Cambridge Pulmonary Hypertension Outcome Review (CAMPHOR) questionnaire. The CAMPHOR questionnaire contains 65 items in total, 25 relating to symptoms, 15 relating to activities, and 25 relating to QoL. It is negatively weighted; a higher score indicates worse QoL and greater functional limitation. Symptom and QoL items are both scored out of 25: "yes/true" scores 1 and "no/not true" scores 0. Activity items have three possible responses (score 0-2), giving a score out of 30. Each CAMPHOR assessment takes an average of 10 min

    Measured: Changes between baseline and 12 weeks of exercise rehabilitation

Timeline

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

  1. First posted27 Jan 2020
  2. Study startMar 2020 (estimated)
  3. Primary completionMar 2021 (estimated)
  4. Study completionMar 2021 (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
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
10 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04241497
Sponsor's protocol ID
HTAP A DOM
Status last verified
Jan 2020
First submitted
22 Jan 2020
Last updated
28 Jan 2020
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Grunig E, Lichtblau M, Ehlken N, Ghofrani HA, Reichenberger F, Staehler G, Halank M, Fischer C, Seyfarth HJ, Klose H, Meyer A, Sorichter S, Wilkens H, Rosenkranz S, Opitz C, Leuchte H, Karger G, Speich R, Nagel C. Safety and efficacy of exercise training in various forms of pulmonary hypertension. Eur Respir J. 2012 Jul;40(1):84-92. doi: 10.1183/09031936.00123711. Epub 2012 Feb 9.

    PubMed 22323570
  • Ehlken N, Lichtblau M, Klose H, Weidenhammer J, Fischer C, Nechwatal R, Uiker S, Halank M, Olsson K, Seeger W, Gall H, Rosenkranz S, Wilkens H, Mertens D, Seyfarth HJ, Opitz C, Ulrich S, Egenlauf B, Grunig E. Exercise training improves peak oxygen consumption and haemodynamics in patients with severe pulmonary arterial hypertension and inoperable chronic thrombo-embolic pulmonary hypertension: a prospective, randomized, controlled trial. Eur Heart J. 2016 Jan 1;37(1):35-44. doi: 10.1093/eurheartj/ehv337. Epub 2015 Jul 31.

    PubMed 26231884
  • Grunig E, Eichstaedt C, Barbera JA, Benjamin N, Blanco I, Bossone E, Cittadini A, Coghlan G, Corris P, D'Alto M, D'Andrea A, Delcroix M, de Man F, Gaine S, Ghio S, Gibbs S, Gumbiene L, Howard LS, Johnson M, Jureviciene E, Kiely DG, Kovacs G, MacKenzie A, Marra AM, McCaffrey N, McCaughey P, Naeije R, Olschewski H, Pepke-Zaba J, Reis A, Santos M, Saxer S, Tulloh RM, Ulrich S, Vonk Noordegraaf A, Peacock AJ. ERS statement on exercise training and rehabilitation in patients with severe chronic pulmonary hypertension. Eur Respir J. 2019 Feb 28;53(2):1800332. doi: 10.1183/13993003.00332-2018. Print 2019 Feb.

    PubMed 30578391
  • Potus F, Malenfant S, Graydon C, Mainguy V, Tremblay E, Breuils-Bonnet S, Ribeiro F, Porlier A, Maltais F, Bonnet S, Provencher S. Impaired angiogenesis and peripheral muscle microcirculation loss contribute to exercise intolerance in pulmonary arterial hypertension. Am J Respir Crit Care Med. 2014 Aug 1;190(3):318-28. doi: 10.1164/rccm.201402-0383OC.

    PubMed 24977625
  • Malenfant S, Brassard P, Paquette M, Le Blanc O, Chouinard A, Nadeau V, Allan PD, Tzeng YC, Simard S, Bonnet S, Provencher S. Compromised Cerebrovascular Regulation and Cerebral Oxygenation in Pulmonary Arterial Hypertension. J Am Heart Assoc. 2017 Oct 12;6(10):e006126. doi: 10.1161/JAHA.117.006126.

    PubMed 29025748
  • Malenfant S, Potus F, Fournier F, Breuils-Bonnet S, Pflieger A, Bourassa S, Tremblay E, Nehme B, Droit A, Bonnet S, Provencher S. Skeletal muscle proteomic signature and metabolic impairment in pulmonary hypertension. J Mol Med (Berl). 2015 May;93(5):573-84. doi: 10.1007/s00109-014-1244-0. Epub 2014 Dec 30.

    PubMed 25548805

Questions about this trial

What is this clinical trial studying?

A study testing Home-based rehabilitation in people with Pulmonary Arterial Hypertension and Exercise Training, run by Laval University at 1 site in Canada.

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 7 inclusion and 8 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 28 Jan 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 Canada. 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?

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Epigenetic factors influencing muscle metabolism (time frame: Changes between baseline and 12 weeks of exercise rehabilitation). 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 NCT04241497, 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 28 Jan 2020.

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