NCT03887546

Brief Summary

Objective: To evaluate the effectiveness of a low-intensity protocol of inspiratory muscle training (IMT) to improve respiratory strength, spirometric parameters and dyspnea in patients with multiple sclerosis (MS). Design: Clinical trial. Randomized. Participants: 67 patients with MS, distributed in two groups, intervention and control. Intervention: Intervention group train using IMT for 12 weeks, 5 days/week, 15 minutes/day (20% maximum inspiratory pressure (MIP) during the first two weeks and 30% MIP after the second week). Control group follow a respiratory exercise program involving nasal breathing and maximum exhalation during 12 weeks, 5 days/week, 15 minutes/day. Evaluations: Determination of the MIP and the maximum expiratory pressure (MEP); spirometry - maximum voluntary ventilation (MVV), peak expiratory flow (PEF), tidal volume (TV); dyspnea using the Borg scale and clinical evaluations.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
67

participants targeted

Target at P50-P75 for not_applicable multiple-sclerosis

Timeline
Completed

Started Apr 2019

Shorter than P25 for not_applicable multiple-sclerosis

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 28, 2019

Completed
2 months until next milestone

First Posted

Study publicly available on registry

March 25, 2019

Completed
29 days until next milestone

Study Start

First participant enrolled

April 23, 2019

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 24, 2019

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 15, 2019

Completed
Last Updated

March 25, 2019

Status Verified

March 1, 2019

Enrollment Period

3 months

First QC Date

January 28, 2019

Last Update Submit

March 20, 2019

Conditions

Keywords

Multiple sclerosisRehabilitationRespirationBreathing exerciseFatigue

Outcome Measures

Primary Outcomes (2)

  • Maximal inspiratory pressure (MIP)

    The evaluation is performed using a pressure transducer, Elka 15, which obtainer each measurement in millibar and converted it into the reference unit of centimeter of water (cm H2O) (1 mbar = 1.01973 cm H2O), following the rules of the ATS / ERS. The procedure was repeated until 3 values were obtained with a difference of less than 5%, and the highest value was used for the analysis. The MIP of the intervention group was assessed every 2 weeks to set the IMT workload.

    5 minutes

  • Maximal expiratory pressure (MEP)

    The evaluation is performed using a pressure transducer, Elka 15. It is evaluated at the beginning and at the end of the interventional phase. Measure: cm H20

    5 minutes

Secondary Outcomes (8)

  • Dyspnea

    1 minute

  • Maximum voluntary ventilation (MVV)

    1 minute

  • Forced expiratory volume in the first second (FEV1)

    1 minute

  • Peak expiratory flow (PEF)

    1 minute

  • Mean expiratory flow (FEF25-75)

    1 minute

  • +3 more secondary outcomes

Study Arms (2)

Intervention group

EXPERIMENTAL

Intervention is administrated with Inspiratory Muscle Trainer. 20% maximum inspiratory pressure (MIP) during the first two weeks and 30% MIP after the second week. 12 weeks, 5 days/week, 15 minutes/day.

Device: Inspiratory muscle trainer

Control group

ACTIVE COMPARATOR

Respiratory exercise program involving nasal breathing and maximum exhalation during 12 weeks, 5 days/week, 15 minutes/day

Procedure: Respiratory exercise

Interventions

The device incorporate a unidirectional valve independent of flow to guarantee constant resistance and included a specific pressure setting (in cm H2O).

Intervention group

Respiratory exercise program involving nasal breathing and maximum exhalation during 12 weeks, 5 days/week, 15 minutes/day.

Control group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosed with MS
  • Over 18 years old
  • Disability lower than 9 in the EDSS
  • Be able to understand the objectives of the study

You may not qualify if:

  • Participants with a current or past neurological pathology other than MS
  • Relapse of MS or any respiratory pathology during the 4 weeks prior to the start of the study
  • Any other complication that may impede the performance of the evaluation tests or breathing techniques

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Multiple SclerosisRespiratory AspirationFatigue

Interventions

Breathing Exercises

Condition Hierarchy (Ancestors)

Demyelinating Autoimmune Diseases, CNSAutoimmune Diseases of the Nervous SystemNervous System DiseasesDemyelinating DiseasesAutoimmune DiseasesImmune System DiseasesRespiration DisordersRespiratory Tract DiseasesPathologic ProcessesPathological Conditions, Signs and SymptomsSigns and Symptoms

Intervention Hierarchy (Ancestors)

Mind-Body TherapiesComplementary TherapiesTherapeuticsExercise Movement TechniquesPhysical Therapy Modalities

Study Officials

  • ANA MARIA MARTIN-NOGUERAS, DR

    University of Salamanca

    STUDY CHAIR

Central Study Contacts

CARLOS MARTIN SANCHEZ, DOCTOR

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
INVESTIGATOR
Masking Details
The principal investigator doesn´t know the group of the patients until the study ends.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Patients are assigned randomly to the two working groups, each patient only receives one of the two protocols.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director

Study Record Dates

First Submitted

January 28, 2019

First Posted

March 25, 2019

Study Start

April 23, 2019

Primary Completion

July 24, 2019

Study Completion

September 15, 2019

Last Updated

March 25, 2019

Record last verified: 2019-03

Data Sharing

IPD Sharing
Will not share