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The Effect of Vitamin D on in Vitro Fertilization Outcome
Sponsor: The First Affiliated Hospital of Zhengzhou University
Summary
To date, several studies have been done to explore the relationship between Vitamin D level and IVF outcome; however, the results are controversial. Sample sizes in these studies mentioned above were relatively small. In addition, there are no prospective cohort studies in this field. Thus, here the investigators carry this prospective observational cohort study to demonstrate the relationship between vitamin D level and IVF outcome.
Official title: The Effect of Vitamin D on in Vitro Fertilization Outcome, a Prospective Observational Study
Key Details
Gender
FEMALE
Age Range
21 Years - 40 Years
Study Type
OBSERVATIONAL
Enrollment
688
Start Date
2018-01-01
Completion Date
2024-12-01
Last Updated
2026-05-27
Healthy Volunteers
No
Interventions
Embryo transfer
For patients in each group after oocyte retrieval, they will have embryo transferred 3 or 5 days after oocyte retrieval. For FET cycles, they will have ET with an euploid blastocyst.
Locations (1)
Reproductive Medical Center, First Affiliated Hospital of Zhengzhou University
Zhengzhou, Henan, China