Vitamin D Level at Frozen Embryo Transfer and Pregnancy Outcomes

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study in the UAE examines whether serum vitamin D3 levels at the time of frozen embryo transfer are associated with pregnancy and live birth outcomes. Vitamin D status will be categorized as deficient, insufficient, or sufficient, and supplementation history will be collected. The analysis will focus on women undergoing FET at Fakih IVF, with data gathered from medical records and patient questionnaires. The study aims to clarify whether correcting vitamin D insufficiency around FET influences reproductive success. Results could influence vitamin D screening and supplementation practices in fertility clinics.

Why it matters

Who can join: the full rules

Inclusion:

* Women undergoing frozen embryo transfer (FET) at Fakih IVF.
* Age between 18 and 40 years.
* Body mass index (BMI) between 18 and 40 kg/m².
* Patients who had serum vitamin D levels assessed within three months prior to FET
* Supplementation with Vitamin D if deficient \< 30 ng/mL (75 nmol/L).

Exclusion:

* Age below 18 years or above 40 years.
* BMI below 18 kg/m² or above 40 kg/m².
* Patients who did not have vitamin D levels measured within three months prior to FET.
* Patients who were found to have low vitamin D levels but did not receive supplementation.
* Patients with recurrent implantation failure (RIF).
* Patients with known uterine factors affecting implantation (e.g., congenital uterine anomalies, intrauterine adhesions, submucosal fibroids).
* Patients with significant medical comorbidities that may affect pregnancy outcomes.

Where it's running

• Fakih IVF Fertility Centre LLC
  Abu Dhabi, United Arab Emirates Recruiting
• First IVF Fertility Centre
  Abu Dhabi, United Arab Emirates Recruiting

Study contacts

• Principal investigator: Dr. Michael Fakih, MD — Fakih IVF Abu Dhabi
• Study coordinator: Dr. Lamiya Mohiyiddeen, MD, FRCOG
• Email: lamiya.mohiyiddeen@fakihivf.com
• Phone: +971543676002

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.