Effect of Vitamin D Supplementation on In-vitro Fertilization (IVF) Outcomes

February 16, 2014 updated by: Irene Moy, Northwestern University

Randomized Controlled Trial: The Effects of Vitamin D Supplementation on In-vitro Fertilization Outcomes

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 Overview

Status

Terminated

Conditions

Detailed Description

The trial will not pay for or subsidize for IVF treatment. Participants will receive blood Vitamin D screening test and any necessary supplements free of charge.

Study Type

Observational

Enrollment (Anticipated)

102

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Illinois
      • Chicago, Illinois, United States, 60611
        • Northwestern Memorial Hospital
      • Chicago, Illinois, United States, 60611
        • Northwestern University Feinberg School of Medicine
      • Chicago, Illinois, United States, 60611
        • Northwestern Memorial Faculty Foundation

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 38 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Sampling Method

Non-Probability Sample

Study Population

Infertile women aged ≤ 38 years undergoing fresh in-vitro fertilization cycles

Description

Inclusion Criteria:

  • Infertile women aged ≤ 38 years undergoing fresh invitro fertilization cycles

Exclusion Criteria:

  • Infertile women aged > 38 undergoing fresh invitro fertilization cycles
  • Patients undergoing frozen embryo transfers
  • Patients undergoing donor-egg cycles
  • Patients who have a contraindication to receiving Vitamin D (e.g. patients with history of primary hyperparathyroidism, sarcoidosis, tuberculosis, kidney disease, or lymphoma)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
patients with Vit D level of < 20ng/mL: Group 1
randomized to receive 400 IU of vitamin D per day
patients with Vit D levels <20ng/mL: Group 2
Randomized to receive 2000IU of Vitamin D per day
patients with vit D levels between 20-30 ng/mL: Group 3
Randomized to receiving placebo
patients with vit D levels between 20-30 ng/mL: Group 4
Randomized to receive 400IU of vitamin D per day
patients with vit D levels between 20-30 ng/mL: Group 5
Randomized to receive 2000IU of vitamin D per day
patients with vit D levels > 30ng/mL: Group 6
No treatment

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Clinical pregnancy rate
Time Frame: assessed at conclusion of the study (~ 1 yr)
Serum hCG will be drawn per routine IVF protocol (~ 10 days after embryo transfer). Patients will have a repeat bHCG drawn 48hrs if they have a positive result from the first bHCG test. Clinical pregnancy will be defined as ultrasound documentation of fetal heart tones.
assessed at conclusion of the study (~ 1 yr)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Northwestern University

Investigators

  • Principal Investigator: Ralph Kazer, MD, Northwestern Memorial Faculty Foundation
  • Study Chair: Irene Moy, MD, Northwestern University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

August 1, 2011

Primary Completion (Actual)

January 1, 2014

Study Completion (Actual)

January 1, 2014

Study Registration Dates

First Submitted

August 16, 2011

First Submitted That Met QC Criteria

August 17, 2011

First Posted (Estimate)

August 18, 2011

Study Record Updates

Last Update Posted (Estimate)

February 19, 2014

Last Update Submitted That Met QC Criteria

February 16, 2014

Last Verified

February 1, 2014

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • Moy 2011 Vit D

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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