The effect of oral vitamin D on serum level of 25(OH) vitamin D

Comparison the effect of oral vitamin D on serum level of 25(OH) vitamin D in two groups of healthy people with vitamin D deficiency with a level more and less than 10 ng/ml

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT2017042433630N1

Enrollment

Registered

2017-05-20

Start date

2017-03-21

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

Vitamin D deficiency. Vitamin D deficiency

Interventions

All the people under study: 50000 I/U per week oral vitamin D3 for 8 weeks.

Treatment - Drugs

All the people under study: 50000 I/U per week oral vitamin D3 for 8 weeks

Eligibility

Sex/Gender

All

Age

20 Years to 40 Years

Inclusion criteria

Inclusion criteria: Inclusion criteria: age of 20-40 years; having vitamin D level of less than 30 ng/ml. Exclusion criteria: having renal or hepatic diseases; pregnancy or breastfeeding; using steroids or anticonvulsant drugs; using calcium or vitamin D3 supplements during last 6 months; history of hypercalcemia; sarcoidosis; using bisphosphonates.

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

Measure	Time frame
Serum level of 25(OH) vitamin D. Timepoint: At the start of the study, three months after using vitamin D. Method of measurement: Measurement by laboratory.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactMahdie Khodadoost

Zahedan University of Medical Sciences

m.khodadoost@zaums.ac.ir, ayubabedi48@gmail.com, dr.m.khodadoost@gmail.com+98 54 3322 5715

Outcome results

None listed

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