Development of wearable small oxygen concentrator with less burden of use

Construction of wearable ultra-small oxygen concentrator system and verification of reduced user burden - US OCS Contraction and Verification

Status

Active, not recruiting

Phases

Phase 2

Study type

Interventional

Source

JPRN

Registry ID

JPRN-jRCTs032180031

Enrollment

Registered

2018-10-26

Start date

2018-10-31

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

Stable patients with chronic respiratory disease who shows hypoxemia at rest or during ex

Interventions

Exercise with oxygen supply using a portable oxygen concentrator, and arterial blood gas analysis.

Oxygen supply, oxygen concentrator, exercise, blood gas analysis

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Stable patients with chronic respiratory disease who shows severe hypoxemia at rest or during exercise.

Exclusion criteria

Exclusion criteria: Patients suffering from exacerbations and infectious diseases within three months

Design outcomes

Primary

Measure	Time frame
Mean and the lowest SpO2 during exercise and PaO2 at rest	—

Secondary

Measure	Time frame
Exercise tolerance (exercise capacity)	—

Contacts

Public ContactKeisaku Fujimoto

Shinshu University

fkeisaku@shinshu-u.ac.jp+81-263-37-2393

Outcome results

None listed

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