NCT03325686

Brief Summary

This study was performed to evaluate the efficacy of weekly vitamin D supplementation on athletic performance in Iranian athletes

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
70

participants targeted

Target at P50-P75 for not_applicable healthy

Timeline
Completed

Started Mar 2017

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2017

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2017

Completed
29 days until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2017

Completed
20 days until next milestone

First Submitted

Initial submission to the registry

October 20, 2017

Completed
10 days until next milestone

First Posted

Study publicly available on registry

October 30, 2017

Completed
Last Updated

October 30, 2017

Status Verified

October 1, 2017

Enrollment Period

6 months

First QC Date

October 20, 2017

Last Update Submit

October 27, 2017

Conditions

HealthyAthletes

Keywords

vitamin Datletesphysical performance

Outcome Measures

Primary Outcomes (1)

  • Changes from baseline serum 25-hydroxy vitamin D at eight weeks

    nmol/L

    8 weeks

Secondary Outcomes (7)

  • Changes from baseline Truncal Fat at eight weeks

    8 weeks

  • Changes from baseline visceral fat at eight weeks

    8 weeks

  • Changes from Strength leg press at 8 weeks

    8 weeks

  • Changes from Ergojump at 8 weeks

    8 weeks

  • Changes from baseline Vertical jump at 8 weeks

    8 weeks

  • +2 more secondary outcomes

Study Arms (2)

vitamin D supplement

EXPERIMENTAL

D

Dietary Supplement: vitamin D supplement

control

PLACEBO COMPARATOR

P

Other: Placebo

Interventions

vitamin D supplementDIETARY_SUPPLEMENT

D; received 50,000 IU of vitamin D supplement weekly

Also known as: D
vitamin D supplement
PlaceboOTHER

placebo

Also known as: P
control

Eligibility Criteria

Age18 Years - 30 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • healthy
  • professional athletes

You may not qualify if:

  • receiving vitamin D supplement in past 3 months

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Nutrition and Food Technology Research Institute

Tehrān, Tehran Province, Iran

Location

MeSH Terms

Interventions

Fumigant 93

Study Officials

  • Tirang R. Neyestani, PhD

    Laboratory of Nutrition Research, National Nutrition and Food Technology Research Institute (NNFTRI) and Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

October 20, 2017

First Posted

October 30, 2017

Study Start

March 1, 2017

Primary Completion

September 1, 2017

Study Completion

September 30, 2017

Last Updated

October 30, 2017

Record last verified: 2017-10

Locations

IR(1)