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RECRUITING
NCT07257302
NA

Lung Insufflation Capacity Training and Respiratory Function in Amyotrophic Lateral Sclerosis

Sponsor: National Center of Neurology and Psychiatry, Japan

View on ClinicalTrials.gov

Summary

The goal of this clinical trial is to determine whether lung insufflation capacity (LIC) training can help maintain respiratory function and prolong tracheostomy-free survival in people with amyotrophic lateral sclerosis (ALS). The main questions are: Does early and continuous LIC training slow the decline in forced vital capacity (FVC)? Does LIC training prolong the time to tracheostomy or death? This single-center study at the National Center of Neurology and Psychiatry (NCNP) in Japan will enroll 25 adults with ALS diagnosed according to the El Escorial or Awaji criteria. This is a single-arm study with no concurrently enrolled control group. Comparative analyses will use matched external controls. PRO-ACT will be used primarily to evaluate short-term respiratory-function trajectories, while JACALS, if data access is approved, will be used primarily to evaluate long-term time-to-event outcomes. Participants will: * Use the LIC Trainer device to perform lung insufflation training twice daily at home * Visit the clinic every 3 months for respiratory and functional assessments * Undergo respiratory tests, including FVC, LIC, maximum insufflation capacity (MIC), and cough peak flow (CPF) * Complete the Amyotrophic Lateral Sclerosis Functional Rating Scale-Revised (ALSFRS-R)

Official title: Exploratory Study on the Effects of Lung Insufflation Capacity Training Using the LIC Trainer in Patients With Amyotrophic Lateral Sclerosis: A Single-Center Prospective Interventional Study

Key Details

Gender

All

Age Range

20 Years - Any

Study Type

INTERVENTIONAL

Enrollment

25

Start Date

2025-11-01

Completion Date

2030-03-31

Last Updated

2026-07-30

Healthy Volunteers

No

Interventions

DEVICE

LIC Trainer (Lung Insufflation Capacity Trainer)

The LIC Trainer is a medical device designed to enable lung insufflation through a one-way valve system, allowing passive air stacking without voluntary glottic closure. The device includes a safety valve that automatically releases pressure above 60 cmH₂O and a manual relief valve to ensure patient safety. It is used with a bag-valve-mask to deliver multiple assisted insufflations, approximately 10 per session, twice daily. Participants with amyotrophic lateral sclerosis (ALS) perform LIC training at home after initial instruction by physical therapists and are re-evaluated every 3 months for up to 36 months.

Locations (1)

National Center of Neurology and Psychiatry (NCNP)

Kodaira, Tokyo, Japan