The evaluation of the effect of vitamin D on asthma and COPD and the relationship with Th17 cells

The evaluation of the effect of vitamin D on asthma and COPD and the relationship with Th17 cells - The relation between vit D and asthma

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000010075

Enrollment

100

Registered

2013-02-21

Start date

2013-02-21

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

asthma, COPD

Interventions

blood test

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: asthma or COPD patients by ATS criteria

Exclusion criteria

Exclusion criteria: no

Design outcomes

Primary

Measure	Time frame
symptomatic score spirometry number of exacerbations serum vitD	—

Countries

Japan

Contacts

Public ContactMakoto Kudo

Yokohama City university Department of internal medicine and clinical immunology

m_kudo@yokohama-cu.ac.jp045-787-2630

Outcome results

None listed

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