NCT01999608

Brief Summary

The role of vitamin D deficiency in female reproduction remains controversial. Early retrospective studies were inconsistent regarding the effect of serum 25-OH vitamin D levels on pregnancy rates in women undergoing in vitro fertilization (IVF), whereas two retrospective studies postulated that vitamin D deficiency may negatively affect pregnancy rates with an effect mediated through the endometrium. Taking into account that knock-out experiments have shown that vitamin D receptor null mice not only experience uterine hypoplasia but also impaired folliculogenesis, it might be hypothesized that vitamin D deficiency may have a detrimental effect on female ovarian reserve. This may be further supported by previous reports demonstrating that serum 25-OH Vitamin D levels correlates with antimullerian hormone (AMH) levels in women of advanced reproductive age. The aim of this study is to examine through a large set of prospectively recruited infertile women whether serum 25-OH-Vitamin D levels is related with the 2 most widely accepted biomarkers of ovarian reserve: serum AMH levels and antral follicle count (AFC).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
283

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Aug 2013

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2013

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

November 18, 2013

Completed
15 days until next milestone

First Posted

Study publicly available on registry

December 3, 2013

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2014

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2015

Completed
Last Updated

June 2, 2016

Status Verified

June 1, 2016

Enrollment Period

10 months

First QC Date

November 18, 2013

Last Update Submit

June 1, 2016

Conditions

Keywords

Infertility

Outcome Measures

Primary Outcomes (2)

  • Antimullerian hormone values in relation to vitamin D status

    On the day of the preliminary testing (irrespective of the day of the menstrual cycle) patients will have their serum 25-OH-vitamin D and antimullerian hormone levels determined. 25-OH-vitamin D and antimullerian hormone levels will be measured in samples retrieved on the same day

    Between 0-28 days prior to having their 1st ultrasound scan for the determination of antral follicle count (AFC)

  • Antral follicle count in relation to vitamin D status

    On the following cycle of the measurement of serum 25-OH-Vitamin D and AMH levels patient will have a transvaginal ultrasound to determine the antral follicle count (AFC)

    2nd-3rd day of the menstrual cycle following the determination of vitamin D levels

Study Arms (2)

Vitamin D deficient patients

Serum 25-OH Vitamin D levels \<20ng/L

Vitamin D sufficient patients

Serum 25-OH Vitamin D levels ≥20ng/L

Eligibility Criteria

Age18 Years - 42 Years
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Infertile women 18-43 years old undergoing IVF/ICSI

You may qualify if:

  • infertile women less than 42 years old, undergoing their first treatment cycle in our institution

You may not qualify if:

  • vitamin D supplements, taking medication for systematic disease or having potential iatrogenic (e.g. ovarian surgery, gonadotoxic therapy) or known genetic cause of ovarian loss

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Centre for Reproductive Medicine UZ Brussel

Brussels, 1090, Belgium

Location

Related Publications (8)

  • Ozkan S, Jindal S, Greenseid K, Shu J, Zeitlian G, Hickmon C, Pal L. Replete vitamin D stores predict reproductive success following in vitro fertilization. Fertil Steril. 2010 Sep;94(4):1314-1319. doi: 10.1016/j.fertnstert.2009.05.019. Epub 2009 Jul 8.

    PMID: 19589516BACKGROUND
  • Anifandis GM, Dafopoulos K, Messini CI, Chalvatzas N, Liakos N, Pournaras S, Messinis IE. Prognostic value of follicular fluid 25-OH vitamin D and glucose levels in the IVF outcome. Reprod Biol Endocrinol. 2010 Jul 28;8:91. doi: 10.1186/1477-7827-8-91.

    PMID: 20667111BACKGROUND
  • Aleyasin A, Hosseini MA, Mahdavi A, Safdarian L, Fallahi P, Mohajeri MR, Abbasi M, Esfahani F. Predictive value of the level of vitamin D in follicular fluid on the outcome of assisted reproductive technology. Eur J Obstet Gynecol Reprod Biol. 2011 Nov;159(1):132-7. doi: 10.1016/j.ejogrb.2011.07.006. Epub 2011 Aug 10.

    PMID: 21835540BACKGROUND
  • Rudick B, Ingles S, Chung K, Stanczyk F, Paulson R, Bendikson K. Characterizing the influence of vitamin D levels on IVF outcomes. Hum Reprod. 2012 Nov;27(11):3321-7. doi: 10.1093/humrep/des280. Epub 2012 Aug 21.

    PMID: 22914766BACKGROUND
  • Rudick BJ, Ingles SA, Chung K, Stanczyk FZ, Paulson RJ, Bendikson KA. Influence of vitamin D levels on in vitro fertilization outcomes in donor-recipient cycles. Fertil Steril. 2014 Feb;101(2):447-52. doi: 10.1016/j.fertnstert.2013.10.008. Epub 2013 Nov 5.

    PMID: 24210230BACKGROUND
  • Dennis NA, Houghton LA, Jones GT, van Rij AM, Morgan K, McLennan IS. The level of serum anti-Mullerian hormone correlates with vitamin D status in men and women but not in boys. J Clin Endocrinol Metab. 2012 Jul;97(7):2450-5. doi: 10.1210/jc.2012-1213. Epub 2012 Apr 16.

    PMID: 22508713BACKGROUND
  • Merhi ZO, Seifer DB, Weedon J, Adeyemi O, Holman S, Anastos K, Golub ET, Young M, Karim R, Greenblatt R, Minkoff H. Circulating vitamin D correlates with serum antimullerian hormone levels in late-reproductive-aged women: Women's Interagency HIV Study. Fertil Steril. 2012 Jul;98(1):228-34. doi: 10.1016/j.fertnstert.2012.03.029. Epub 2012 Apr 10.

    PMID: 22494925BACKGROUND
  • Yoshizawa T, Handa Y, Uematsu Y, Takeda S, Sekine K, Yoshihara Y, Kawakami T, Arioka K, Sato H, Uchiyama Y, Masushige S, Fukamizu A, Matsumoto T, Kato S. Mice lacking the vitamin D receptor exhibit impaired bone formation, uterine hypoplasia and growth retardation after weaning. Nat Genet. 1997 Aug;16(4):391-6. doi: 10.1038/ng0897-391.

    PMID: 9241280BACKGROUND

MeSH Terms

Conditions

Infertility

Condition Hierarchy (Ancestors)

Genital DiseasesUrogenital Diseases

Study Officials

  • Nikolaos P. Polyzos, MD PhD

    Universitair Ziekenhuis Brussel

    PRINCIPAL INVESTIGATOR
  • Arne Van de Vijver, MD

    UZBrussel

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

November 18, 2013

First Posted

December 3, 2013

Study Start

August 1, 2013

Primary Completion

June 1, 2014

Study Completion

June 1, 2015

Last Updated

June 2, 2016

Record last verified: 2016-06

Locations