NCT06871163

Brief Summary

The objective of this clinical trial is to investigate the efficacy of inspiratory muscle training (IMT) combined with manual techniques for the lower esophageal sphincter (MTLES) and diaphragmatic release (DRT) in patients with Gastroesophageal Reflux Disease (GERD). The main questions it aims to answer are:

  1. 1.If the combination of IMT, DRT, and MTLES can improve GERD symptoms and patients' quality of life.
  2. 2.If the home-based IMT protocol, with weekly adjustments, and the manual techniques applied twice a week can have a positive impact on various clinical measures, such as pressure at the lower esophageal sphincter, reflux episodes, and quality of life.

Trial Health

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Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for not_applicable

Timeline
9mo left

Started Apr 2025

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
not yet recruiting

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

Study Progress60%
Apr 2025Feb 2027

First Submitted

Initial submission to the registry

February 27, 2025

Completed
12 days until next milestone

First Posted

Study publicly available on registry

March 11, 2025

Completed
21 days until next milestone

Study Start

First participant enrolled

April 1, 2025

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2026

Completed
10 months until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2027

Expected
Last Updated

March 11, 2025

Status Verified

March 1, 2025

Enrollment Period

1 year

First QC Date

February 27, 2025

Last Update Submit

March 6, 2025

Conditions

Keywords

inspiratory muscle training (IMT)diaphragmatic releasemanual techniques for the lower esophageal sphincter

Outcome Measures

Primary Outcomes (4)

  • pressure at the gastroesophageal junction

    esophageal manometry

    Pre-intervention and after 8 weeks of intervention.

  • number of reflux episodes

    impedance-pH monitoring

    Pre-intervention and after 8 weeks of intervention.

  • reflux symptoms

    Gastroesophageal Reflux Disease Symptom Questionnaire

    Pre-intervention and after 8 weeks of intervention.

  • acid exposure time

    impedance-pH monitoring

    Pre-intervention and after 8 weeks of intervention.

Secondary Outcomes (4)

  • diaphragmatic mobility and thickness

    Pre-intervention, after 4 weeks of intervention, after 8 weeks of intervention and And a follow-up one month after the last intervention.

  • respiratory muscle strength

    Pre-intervention, after 4 weeks of intervention, after 8 weeks of intervention and And a follow-up one month after the last intervention.

  • heart rate variability

    Pre-intervention, after 4 weeks of intervention, after 8 weeks of intervention and And a follow-up one month after the last intervention.

  • diaphragmatic thickness

    Pre-intervention, after 4 weeks of intervention, after 8 weeks of intervention and And a follow-up one month after the last intervention.

Study Arms (3)

group IMT

EXPERIMENTAL

inspiratory muscle training (IMT)

Procedure: inspiratory muscle training

group IMT +TM

EXPERIMENTAL

inspiratory muscle training (IMT) combined with manual techniques for the lower esophageal sphincter (MTLES) and diaphragmatic release (DRT)

Procedure: inspiratory muscle training (IMT) combined with manual techniques for the lower esophageal sphincter (MTLES) and diaphragmatic release (DRT)

group placebo

PLACEBO COMPARATOR

a simulated treatment protocol

Procedure: Controle

Interventions

Volunteers allocated to the Sham group will receive proton pump inhibitor medication at a standard dose of 20 mg Participants will perform home-based IMT with a moderate load set at 50% of maximal inspiratory pressure (PImáx), adjusted weekly during in-person sessions at LACAP-UFPE. Training will use the Powerbreathe® Classic Light device, provided to participants for the study duration. The protocol includes three cycles of 10 explosive respiratory incursions, with one-minute rest intervals, performed twice daily for eight weeks. Participants will record perceived exertion (Borg scale) and any occurrences in a training log.

group IMT

Volunteers allocated to the group will receive proton pump inhibitor medication at a standard dose of 20 mg. The IMT protocol will be the same as in Group 1. Intervention: IMT Combined with Manual Techniques (MTLES \& DRT) The IMT protocol follows Group 1. DRT (Rocha et al., 2015) involves manual traction during inspiration and deepened contact during expiration, applied in two sets of ten deep breaths. MTLES (Eguaras et al., 2019) is performed with the patient seated, applying epigastric pressure to access the lower esophageal sphincter through coordinated flexion-inspiration and extension-expiration for 5 minutes.

group IMT +TM
ControlePROCEDURE

Volunteers allocated to the Sham group will receive proton pump inhibitor medication at a standard dose of 20 mg, as prescribed for other participants. They will undergo a simulated treatment protocol, including inspiratory muscle training (IMT) without load to mimic device use and manual techniques where the therapist places hands on the intervention area without performing actual manipulation.

group placebo

Eligibility Criteria

Age18 Years - 74 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Individuals diagnosed with gastroesophageal reflux disease (GERD)
  • using 20 mg of proton pump inhibitors (PPIs).

You may not qualify if:

  • Individuals with a hiatal hernia \>3 cm,
  • chronic lung diseases (chronic obstructive pulmonary disease and interstitial lung diseases)
  • severe heart diseases,
  • history of previous abdominal and/or thoracic surgeries, rib fractures within the past year,
  • severe osteoporosis
  • BMI \>30 kg/m²

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Universidade Federal de Pernambuco

Recife, Pernambuco, 50670-901, Brazil

Location

MeSH Terms

Conditions

Gastroesophageal Reflux

Condition Hierarchy (Ancestors)

Esophageal Motility DisordersDeglutition DisordersEsophageal DiseasesGastrointestinal DiseasesDigestive System Diseases

Central Study Contacts

HELENA ROCHA, Msc

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

February 27, 2025

First Posted

March 11, 2025

Study Start

April 1, 2025

Primary Completion

April 1, 2026

Study Completion (Estimated)

February 1, 2027

Last Updated

March 11, 2025

Record last verified: 2025-03

Locations