The Relationship Between VDR Gene Polymorphism and Children's Physical and Intellectual Development
RVDRGPCPID
Multi-Center Clinical Study on the Relationship Between Vitamin D Receptor Gene Polymorphism and Children's Physical and Intellectual Development
1 other identifier
interventional
500
1 country
1
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
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jan 2019
Typical duration for not_applicable
1 active site
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
CompletedFirst Posted
Study publicly available on registry
November 15, 2018
CompletedStudy Start
First participant enrolled
January 1, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
March 1, 2021
CompletedNovember 15, 2018
July 1, 2018
2 years
November 12, 2018
November 12, 2018
Conditions
Keywords
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
EXPERIMENTALTake 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.
control group
NO INTERVENTIONGeneral 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.
Eligibility Criteria
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
MeSH Terms
Interventions
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Hui Li, PHD,MD
First Affiliated Hospital Xi'an Jiaotong University
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