Vitamin D Dynamics in Women

The goal of this project is to utilize stable isotopically labeled vitamin D3 and state of the art mass spectrometric methodology to assess vitamin D dynamics during pregnancy in relation to relation to obesity and vitamin D binding protein genotype. At the conclusion of this study, the investigators will have obtained novel information on the absorption and utilization of vitamin D in women and the degree to which vitamin D utilization during pregnancy is impacted by genetic ancestry, vitamin D binding protein concentration and genotype and by excess adiposity. The long-term goal is to better understand the unique metabolism of vitamin D during pregnancy.

NCT Number	NCT02705287
Lead Sponsor	Cornell University Collaborators: University of Rochester
Conditions	Pregnancy
Enrollment	160 participants
Start Date	2024-10-28
Primary Completion	2028-05 (estimated)
Study Completion	2029-05 (estimated)
Updated on ClinicalTrials.gov	2026-04-01