Effect of Vitamin D Supplementation on In-vitro Fertilization (IVF) Outcomes
Public ClinicalTrials.gov record NCT01419743. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Randomized Controlled Trial: The Effects of Vitamin D Supplementation on In-vitro Fertilization Outcomes
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Historically, vitamin D has been considered to play a role solely in bone and calcium metabolism. Numerous studies have suggested a link between vitamin D deficiency and adverse health outcomes such as malignancy, cardiovascular disease, immune functioning, and glucose metabolism. In the obstetrics literature, vitamin D deficiency has been linked to preeclampsia, gestational diabetes, and increased rate of cesarean section rate. Recent data from retrospective chart reviews have demonstrated a possible role of vitamin D in implantation and clinical pregnancy rates in patients undergoing in-vitro fertilization. Patients found to be deficient in vitamin D were found to have significantly lower clinical pregnancy rates when compared to patients who were replete in vitamin D levels. Currently, there are no prospective clinical trials investigating the effects of vitamin D supplementation on IVF outcomes such as clinical pregnancy rate and implantation rates. The investigators hypothesize that the vitamin D supplementation in patients found to be either deficient or insufficient in vitamin D will lead to improved pregnancy rates in infertility patients undergoing in-vitro fertilization.
Study identification
- NCT ID
- NCT01419743
- Recruitment status
- Terminated
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 102 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 18 Years to 38 Years
- Sex
- Female
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jul 31, 2011
- Primary completion
- Dec 31, 2013
- Completion
- Dec 31, 2013
- Last update posted
- Feb 18, 2014
2011 – 2014
United States locations
- U.S. sites
- 3
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Northwestern Memorial Faculty Foundation | Chicago | Illinois | 60611 | — |
| Northwestern Memorial Hospital | Chicago | Illinois | 60611 | — |
| Northwestern University Feinberg School of Medicine | Chicago | Illinois | 60611 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01419743, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Feb 18, 2014 · Synced Sep 3, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT01419743 live on ClinicalTrials.gov.