The relationship between serum vitamin D level and bronchial asthma.

The relationship between serum vitamin D level and bronchial asthma. - The relationship between serum vitamin D level and bronchial asthma.

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000004330

Enrollment

500

Registered

2010-10-06

Start date

2010-09-01

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

bronchial asthma

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients who were or will be diagnosed as having bronchial asthma in department of pulmonary medicine, Fukushima Medical University Hospital and normal volunteers, they received or will receive fractional exhaled nitric oxide measurements, serum sampling, and agreed or agree to be involved in this clinical study.

Exclusion criteria

Exclusion criteria: Asthmatic patients without measurement of fractional exhaled nitric oxide before treatment.

Design outcomes

Primary

Measure	Time frame
The primary outcome is evaluating the correlation between serum vitamin D level and asthma severity.	—

Secondary

Measure	Time frame
The secondary outcome is evaluating the correlation between serum vitamin D level and fractional exhaled nitric oxide levels.	—

Countries

Japan

Contacts

Public ContactSuguru Sato

School of Medicine, Fukushima Medical University Department of Pulmonary Medicine

pulmo@fmu.ac.jp024-547-1360

Outcome results