NCT03742310

Brief Summary

This study was used to determine the relationship between vitamin D receptor gene polymorphism and children's physical and intellectual development, further adjust the doses of vitamin D supplementation after birth, and provide individualized vitamin D and calcium supplements.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
500

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jan 2019

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 12, 2018

Completed
3 days until next milestone

First Posted

Study publicly available on registry

November 15, 2018

Completed
2 months until next milestone

Study Start

First participant enrolled

January 1, 2019

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2021

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2021

Completed
Last Updated

November 15, 2018

Status Verified

July 1, 2018

Enrollment Period

2 years

First QC Date

November 12, 2018

Last Update Submit

November 12, 2018

Conditions

Keywords

Vitamin D Receptor genephysical developmentintelligent development

Outcome Measures

Primary Outcomes (3)

  • body weight

    We will use the baby scale to measure infant body weight

    From date of randomization until the date of three year-old

  • body height

    We will use the baby scale to measure infant body height

    From date of randomization until the date of three year-old

  • head circumference

    We will use the tape to measure infant head circumference

    From date of randomization until the date of three year-old

Study Arms (2)

identical supplement group

EXPERIMENTAL

Take vitamin D supplements according to genotype. If the genotype result is "high risk", we will give vitamin d 800 international unit(IU)/d, when the result is "middle risk", we will give 600 international unit(IU)/d, when the result is "low risk", we will give 400 international unit(IU)/d.

Drug: Vitamin D

control group

NO INTERVENTION

General dose. Whatever the result is, we all give 400 international unit(IU)/d.

Interventions

Vitamin D is essential for healthy bones, and to control the amount of calcium in our blood.It is important at every stage of life, but especially for rapidly growing infants and teenagers and for pregnant and breastfeeding women.

Also known as: calcitriol
identical supplement group

Eligibility Criteria

Age1 Day - 3 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • infant age from 0 to 3 years old
  • enjoy good health, there is no history of specific diseases

You may not qualify if:

  • this time or always exists serious lung infection, or with nervous system disease, kidney disease, malignant tumor, etc
  • has bone metabolic diseases or other genetic metabolic disease
  • taking affect bone metabolism of drugs for a long time

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

First Affiliated Hospital of Xi'an Jiaotong University

Xi'an, Shaanxi, 710061, China

Location

MeSH Terms

Interventions

Vitamin DCalcitriol

Intervention Hierarchy (Ancestors)

SecosteroidsSteroidsFused-Ring CompoundsPolycyclic CompoundsDihydroxycholecalciferolsHydroxycholecalciferolsCholecalciferolCholestenesCholestanesSterolsMembrane LipidsLipids

Study Officials

  • Hui Li, PHD,MD

    First Affiliated Hospital Xi'an Jiaotong University

    STUDY CHAIR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 12, 2018

First Posted

November 15, 2018

Study Start

January 1, 2019

Primary Completion

January 1, 2021

Study Completion

March 1, 2021

Last Updated

November 15, 2018

Record last verified: 2018-07

Locations