Study on the determination of the small intestine bacterial overgrowth by exhaled breath methane gas and hydrogen gas measurement

Study on the determination of the small intestine bacterial overgrowth by exhaled breath methane gas and hydrogen gas measurement - Study on the determination of the small intestine bacterial overgrowth by exhaled breath methane gas and hydrogen gas measurement

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000031555

Enrollment

100

Registered

2018-03-02

Start date

2014-11-07

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

Functional gastrointestinal disorder

Interventions

glucose (50g) breath test

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) Patients with functional gastrointestinal disorder 2) Informed consent is obtained 3) Normal control: healthy volunteer

Exclusion criteria

Exclusion criteria: 1) Patients who do not take breath test ex. who cannot keep sitting position

Design outcomes

Primary

Measure	Time frame
A peak hydrogen or methane value > 12 ppm above basal value after administration of 50g glucose is diagnosed as SIBO.	—

Secondary

Measure	Time frame
abdominal symptoms assessed by questionnaire for IBS.	—

Countries

Japan

Contacts

Public ContactNorihisa Ishimura

Shimane University Faculty of Medicine Department of Internal Medicine 2

ishimura@med.shimane-u.ac.jp0853-20-2190

Outcome results

None listed

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