Studying the effectiveness of the “Vitamin D mega-dose supplementation” on the Health status of the High school boys in Tehran

Status

Recruiting

Phases

Phase 3

Study type

Interventional

Source

IRCT

Registry ID

IRCT20150826023776N4

Enrollment

Registered

2018-04-09

Start date

2018-04-04

Completion date

Unknown

Last updated

2018-05-21

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

Conditions

Vitamin D Deficient. E55.9Vitamin D deficiency, unspecified

Interventions

Intervention 1: Intervention group: Intake of one Vitamin D 50000IU supplement per month for 6 months. Intervention 2: Control group:Intake of one placebo capsule consistent of 1gram corn oil per mont

Eligibility

Sex/Gender

Male

Age

15 Years to 15 Years

Inclusion criteria

Inclusion criteria: Healthy 15-years old boys in high school

Exclusion criteria

Exclusion criteria: Severely clinical sick and disabled in terms of: Severe cardiovascular disease Anemia Liver and kidney disorders Mal-absorption In addition in control group adolescents who have received even one mega-dose

Design outcomes

Primary

Measure	Time frame
Serum 25-OH vitamin D. Timepoint: At the baseline, 12 and 24 weeks after intervention. Method of measurement: HPLC.	—

Secondary

Measure	Time frame
Lipid profile (LDL, HDL, cholesterol and Triglyceride). Timepoint: At the baseline, 12 and 24 weeks after intervention. Method of measurement: Authoanalyser.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactAbolghasem Djazaieri

Tehran University of Medical Sciences

jazaiers@tums.ac.ir+98 21 8898 4837

Outcome results

None listed

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