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An Investigation of the Effect of Vitamin D Level During Frozen Embryo Transfer (FET) in IVF and Pregnancy Outcomes

NCT07681115 · Status: RECRUITING · Type: OBSERVATIONAL · Enrollment: 126

Last updated 2026-07-15

No results posted yet for this study

Summary

Vitamin D is best known for keeping our bones healthy, but growing research suggests it may also play a role in fertility. Many In vitro fertilization (IVF) clinics now routinely check vitamin D levels and prescribe supplements before treatment, but the science is still unclear on whether this actually improves the chances of pregnancy.

Our study, based in the United Arab Emirates (UAE), aims to find out whether a woman's vitamin D level on the day of her frozen embryo transfer (FET) makes a difference to whether she becomes pregnant and delivers a baby. The UAE is an ideal setting for this research, as vitamin D deficiency is particularly common in the region. The findings could shape how fertility clinics screen and treat women seeking fertility treatment in the future.

Conditions

  • Vitamin D Insufficiency
  • In Vitro Fertilization and Embryo Transfer

Interventions

OTHER

No Intervention: Observational Cohort

There are no interventions in this study. This is an observational cohort study.

Sponsors & Collaborators

  • Fakih IVF Fertility Center

    lead OTHER

Principal Investigators

  • Lamiya Mohiyiddeen, MD, FRCOG · Fakih IVF Abu Dhabi

  • Michael Fakih, MD · Fakih IVF Abu Dhabi

Eligibility

Min Age
18 Years
Max Age
40 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-06-01
Primary Completion
2027-06-30
Completion
2027-08-31

Countries

  • United Arab Emirates

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07681115 on ClinicalTrials.gov