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Respiratory Muscle StrengthNCT03186092

Effects of Training in Pulmonary Hypertension

A study testing respiratory muscle training in people with Respiratory Muscle Strength, run by Faculdade de Ciências Médicas da Santa Casa de São Paulo at 1 site in Brazil.

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

Pulmonary hypertension (HP) is a progressive pathological condition presents with vascular changes in the lung. Cardiopulmonary changes in PH are considered the main limiting factor, however, it is known that the muscular alterations potentiate the symptomatology. Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Respiratory Muscle Strength
What is being tested?
respiratory muscle training
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
14 participants
Where
1 siteBrazil
Study dates
1 Aug 2017to 10 Dec 2020
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

  • Pulmonary hypertension (PAP m ≥ 25mmHg and PAOP <15mmHg);
  • both sexes and age greater than or equal to 18 years;
  • Clinically stable with optimized and unchanged daily drug therapy in the last three months;
  • agree to participate in the study by signing a free and informed consent form

Who cannot join

  • Down's syndrome
  • COPD
  • Severe ischemic heart disease
  • Left heart failure
  • Cor pulmonale
  • Cognitive Disorders
Show all 9Show fewer
  • Orthopedic problems that interfere with assessments and interventions
  • Emergency or elective surgical intervention during the protocol
  • Pulmonary infectious process during the protocol.

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • Santa Casa of Sao Paulo Medical School

    São Paulo, 01221-020

Other trials in Brazil

About this study

Official title: Effects of Respiratory Muscle Training on Respiratory Muscle Strength, Functional Capacity and Quality of Life in Pulmonary Hypertension

Pulmonary hypertension (HP) is a progressive pathological condition presents with vascular changes in the lung. Cardiopulmonary changes in PH are considered the main limiting factor, however, it is known that the muscular alterations potentiate the symptomatology. Several HP factors and mechanisms have an impact on peripheral and respiratory muscle changes, so, specifically, respiratory muscles are also altered in patients with PH.

In the face of respiratory muscle weakness, inspiratory muscle training (IMT) has been shown to increase respiratory muscle strength and functional capacity in chronic conditions such as obstructive pulmonary disease (COPD) and heart failure (HF).

The objective of this study is to test whether a 12-week TMI protocol is capable of impacting functional capacity, respiratory muscle strength, spirometric values and quality of life in patients with PH.

Read the detailed description

Pulmonary hypertension (HP) is a progressive pathological condition that HP presents with vascular changes in the lung that cause proliferative and obstructive remodeling promoting vasoconstriction with a consequent increase in pulmonary vascular resistance (PVR).

Cardiopulmonary changes in PH are considered the main limiting factor, however, it is known that the muscular alterations potentiate the symptomatology. Several HP factors and mechanisms have an impact on peripheral and respiratory muscle changes, such as: decreased cardiac output, hypoxemia, inflammation, increased insulin resistance, altered autonomic nervous system (ANS) response, and muscle disuse. These factors imply alteration of fiber type, atrophy, capillary vascular reduction, reduction of oxidative capacity, endothelial dysfunction and decreased muscle excitability by ANS.

Specifically, respiratory muscles are also altered in patients with PH. For the treatment of PH, in addition to optimized drug therapy, studies have demonstrated the effects of physical exercise for this population. Although there is no consensus about the best exercise modality, duration, frequency or intensity, physical training promotes benefits in exercise capacity, maximal oxygen capacity (VO2peak) and quality of life. The most recent European guideline [3] recommends supervised exercise in patients with PH who are clinically stable with optimized drug therapy (evidence grade IIa, Level B), but patients often do not have access to supervised physical rehabilitation programs, which Practice a challenge.

In the face of respiratory muscle weakness, inspiratory muscle training (IMT) has been shown to increase respiratory muscle strength and functional capacity in chronic conditions such as obstructive pulmonary disease (COPD) and heart failure (HF). At HP, the study by Saglam M et al., 2015 demonstrates improvement of respiratory muscle strength and functional capacity, resulting in decreased dyspnea and fatigue in PH patients who performed the IMT protocol during six weeks of outpatient training.

The objective of this study is to test whether a 12-week TMI protocol is capable of impacting functional capacity, respiratory muscle strength, spirometric values and quality of life in patients with PH.

Being tested
respiratory muscle training, sham muscle training
Keywords
Respiratory muscle strength, Pulmonary hypertension, Respiratory muscle training
Medical subject headings
Hypertension, Pulmonary

What participants receive

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

  • respiratory muscle trainingOther

    The TMI protocol will be performed with POWERbreathe Line Plus (POWERbreathe International Ltd. Warwickshire, England) linear loader with resistance load of 30% of maximal inspiratory pressure (PImax) value for a period of 12 weeks, 7 times at Week, 30 min / day, one of the times in the week with the supervision of the researcher and, on the other six days of the week, patients will perform IMT at their homes, having as a control a records record of the protocol that will be delivered to each patient To record the time and duration of the exercise. At the end of each week, patients will be reevaluated for MIP, so that the load values are regulated according to the possible increase in inspiratory muscle strength. The data collection will be performed by a single evaluator and the patients will be properly oriented on the procedures to be performed.

  • sham muscle trainingOther

    sham comparator

Study groups in NCT03186092
Study groupRoleWhat they receive
Intervention GroupActive comparatorinspiratory muscle training with load
Receives: Other: respiratory muscle training
Control GroupSham comparatorunloaded inspiratory muscle training
Receives: Other: sham muscle training

What is being measured

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

  1. Respiratory muscle strength

    Inspiratory Muscle strength

    Measured: 3 months

  2. Walk test

    6 minute distance walk test

    Measured: 3 months

Timeline

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

  1. First posted14 Jun 2017
  2. Study start1 Aug 2017
  3. Primary completion1 Mar 2018
  4. Study completion10 Dec 2020

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
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
14 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03186092
Sponsor's protocol ID
64139317.5.0000.5479
Status last verified
Nov 2019
First submitted
12 Jun 2017
Last updated
5 Feb 2021
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Hoeper MM, Bogaard HJ, Condliffe R, Frantz R, Khanna D, Kurzyna M, Langleben D, Manes A, Satoh T, Torres F, Wilkins MR, Badesch DB. Definitions and diagnosis of pulmonary hypertension. J Am Coll Cardiol. 2013 Dec 24;62(25 Suppl):D42-50. doi: 10.1016/j.jacc.2013.10.032.

    PubMed 24355641
  • Simonneau G, Gatzoulis MA, Adatia I, Celermajer D, Denton C, Ghofrani A, Gomez Sanchez MA, Krishna Kumar R, Landzberg M, Machado RF, Olschewski H, Robbins IM, Souza R. Updated clinical classification of pulmonary hypertension. J Am Coll Cardiol. 2013 Dec 24;62(25 Suppl):D34-41. doi: 10.1016/j.jacc.2013.10.029.

    PubMed 24355639
  • Galie N, Humbert M, Vachiery JL, Gibbs S, Lang I, Torbicki A, Simonneau G, Peacock A, Vonk Noordegraaf A, Beghetti M, Ghofrani A, Gomez Sanchez MA, Hansmann G, Klepetko W, Lancellotti P, Matucci M, McDonagh T, Pierard LA, Trindade PT, Zompatori M, Hoeper M. 2015 ESC/ERS Guidelines for the diagnosis and treatment of pulmonary hypertension: The Joint Task Force for the Diagnosis and Treatment of Pulmonary Hypertension of the European Society of Cardiology (ESC) and the European Respiratory Society (ERS): Endorsed by: Association for European Paediatric and Congenital Cardiology (AEPC), International Society for Heart and Lung Transplantation (ISHLT). Eur Respir J. 2015 Oct;46(4):903-75. doi: 10.1183/13993003.01032-2015. Epub 2015 Aug 29.

    PubMed 26318161
  • Ehlken N, Verduyn C, Tiede H, Staehler G, Karger G, Nechwatal R, Opitz CF, Klose H, Wilkens H, Rosenkranz S, Halank M, Grunig E. Economic evaluation of exercise training in patients with pulmonary hypertension. Lung. 2014 Jun;192(3):359-66. doi: 10.1007/s00408-014-9558-9. Epub 2014 Mar 8.

    PubMed 24609926
  • Gosselink R, De Vos J, van den Heuvel SP, Segers J, Decramer M, Kwakkel G. Impact of inspiratory muscle training in patients with COPD: what is the evidence? Eur Respir J. 2011 Feb;37(2):416-25. doi: 10.1183/09031936.00031810.

    PubMed 21282809
  • ATS Committee on Proficiency Standards for Clinical Pulmonary Function Laboratories. ATS statement: guidelines for the six-minute walk test. Am J Respir Crit Care Med. 2002 Jul 1;166(1):111-7. doi: 10.1164/ajrccm.166.1.at1102. No abstract available.

    PubMed 12091180
  • Neder JA, Andreoni S, Lerario MC, Nery LE. Reference values for lung function tests. II. Maximal respiratory pressures and voluntary ventilation. Braz J Med Biol Res. 1999 Jun;32(6):719-27. doi: 10.1590/s0100-879x1999000600007.

    PubMed 10412550
  • Simonneau G, Galie N, Rubin LJ, Langleben D, Seeger W, Domenighetti G, Gibbs S, Lebrec D, Speich R, Beghetti M, Rich S, Fishman A. Clinical classification of pulmonary hypertension. J Am Coll Cardiol. 2004 Jun 16;43(12 Suppl S):5S-12S. doi: 10.1016/j.jacc.2004.02.037.

    PubMed 15194173
  • Mereles D, Ehlken N, Kreuscher S, Ghofrani S, Hoeper MM, Halank M, Meyer FJ, Karger G, Buss J, Juenger J, Holzapfel N, Opitz C, Winkler J, Herth FF, Wilkens H, Katus HA, Olschewski H, Grunig E. Exercise and respiratory training improve exercise capacity and quality of life in patients with severe chronic pulmonary hypertension. Circulation. 2006 Oct 3;114(14):1482-9. doi: 10.1161/CIRCULATIONAHA.106.618397. Epub 2006 Sep 18.

    PubMed 16982941
  • Saglam M, Arikan H, Vardar-Yagli N, Calik-Kutukcu E, Inal-Ince D, Savci S, Akdogan A, Yokusoglu M, Kaya EB, Tokgozoglu L. Inspiratory muscle training in pulmonary arterial hypertension. J Cardiopulm Rehabil Prev. 2015 May-Jun;35(3):198-206. doi: 10.1097/HCR.0000000000000117.

    PubMed 25909652

Questions about this trial

What is this clinical trial studying?

A study testing respiratory muscle training in people with Respiratory Muscle Strength, run by Faculdade de Ciências Médicas da Santa Casa de São Paulo at 1 site in Brazil.

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 9 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 5 Feb 2021. 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 Brazil. 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.

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?

Respiratory muscle strength (time frame: 3 months). 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 NCT03186092, which also lists 10 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 5 Feb 2021.

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