Effects of differences in response speed of breath-synchronized function of HiSanso Portable alfa II on improving oxygenation during six-minute walk test

Effects of differences in response speed of breath-synchronized function of HiSanso Portable alfa II on improving oxygenation during six-minute walk test: Crossover trial - Effects of differences in response speed of breath-synchronized function of HiSanso Portable alfa II on improving oxygenation during six-minute walk test: Crossover trial

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000060425

Enrollment

Registered

2026-01-21

Start date

2026-04-01

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

interstitial lung disease and chronic obstructive pulmonary disease

Interventions

A modified version of the respiratory synchronizer with improved response speed for its respiratory synchronization function is used. A respiratory synchronizer with standard respiratory synchronizati

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Drug therapy is not restricted. 2. Cases with interstitial lung disease or chronic obstructive pulmonary disease. 3. Cases using home oxygen therapy during exertion or with a minimum SpO2 below 90% during six-minute walk test performed in room air.

Exclusion criteria

Exclusion criteria: 1. Cases with acute exacerbation or respiratory tract infection within the past four weeks, resulting in instability. 2. Cases with new pneumothorax within the past four weeks, resulting in instability. 3. Cases with unstable angina or myocardial infarction within the past four weeks. 4. Cases with chronic pneumothorax. 5. Cases with worsening of complications such as heart failure, bronchial asthma, or renal failure, resulting in instability. 6. Cases unable to perform the six-minute walk test due to dyspnea or similar reasons. 7. Cases requiring nasal oxygen flow exceeding 5 L/min during exertion. 8. Cases with peripheral circulatory disorders making SpO2 measurement difficult. 9. Other cases deemed inappropriate by the study investigator.

Design outcomes

Primary

Measure	Time frame
Difference in the change from pre-test SpO2 to post-test minimum SpO2 between the standard and modified versions of the respiratory synchronization function during the six-minute walk test	—

Countries

Japan

Contacts

Public ContactSatoshi Hamada

Graduate School of Medicine, Kyoto University Department of Advanced Medicine for Respiratory Failure

sh1124@kuhp.kyoto-u.ac.jp075-366-7689

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026