The effect of vitamin D supplement on airway function in asthma

Investigation the effect of vitamin D supplement on airway function in mild to moderate asthma with vitamin D deficiency in 2016-2017

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT2016112731129N1

Enrollment

Registered

2017-02-19

Start date

2016-08-22

Completion date

Unknown

Last updated

2018-02-22

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

Conditions

Asthma. Asthma

Interventions

Intervention 1: Vitamin D group: oral vitamin D supplement 50000 I/U per week for 8 weeks. Intervention 2: Placebo group: placebo, oral tablet, once a week for 8 weeks.

Treatment - Drugs

Placebo

Vitamin D group: oral vitamin D supplement 50000 I/U per week for 8 weeks

Placebo group: placebo, oral tablet, once a week for 8 weeks.

Eligibility

Sex/Gender

All

Age

15 Years to 50 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria: age of 15-50 years; having mild or moderate asthma; having a vitamin D level less than 30 ng/ml. Exclusion criteria: having a chronic obstructive pulmonary disease; using vitamin D supplement; having renal or hepatic failure; pregnancy or lactation; treatment with anti-epileptic drugs.

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

Measure	Time frame
Asthma attack and conversion to severe asthma. Timepoint: 1 monthly. Method of measurement: visiting by the study author.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactAhmad Ghoba

Zahedan University of Medical Sciences

dr.ghoba@yahoo.com, dr.ghoba@zaums.ac.ir+98 54 3322 5715

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026