NCT00985062

Brief Summary

In vitro fertilization (IVF) is an assisted reproductive technique to achieve pregnancy in subfertile couples of which the average success rate is only 25%. Mild ovarian stimulation treatment yields less oocytes, has less adverse effects but has a comparable clinical outcome compared to conventional stimulation treatment. There is high inter- and intra person variability in ovarian response and fertility outcome parameters after stimulation treatment and little is known about explanatory variables herefore. Nutrition and in particular folate, or its synthetic derivative folic acid, is a B-vitamin which has been widely asssociated with reproductive outcome and subfertility. Therefore, in this study we aim to investigate the influence of preconception nutrition and folic acid use on ovarian response after mild/conventional stimulation treatment and to identify biomarkers in the follicular fluid which can indicate oocyte quality and other fertility outcomes.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
54

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Oct 2004

Typical duration for not_applicable

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

October 1, 2004

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2006

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2006

Completed
2.8 years until next milestone

First Submitted

Initial submission to the registry

September 24, 2009

Completed
4 days until next milestone

First Posted

Study publicly available on registry

September 28, 2009

Completed
Last Updated

September 28, 2009

Status Verified

September 1, 2009

Enrollment Period

2.2 years

First QC Date

September 24, 2009

Last Update Submit

September 25, 2009

Conditions

Keywords

Folic AcidHomocysteineOvarian responseIn Vitro Fertilization

Outcome Measures

Primary Outcomes (1)

  • Endocrine, metabolic biomarkers and proteins and Fertility outcome parameters

    At menstrual cycle day 2 before stimulation, on the day of hCG administration after stimulation treatment and after embryo transplantation

Secondary Outcomes (1)

  • Homocysteine-methionine cycle biomarker, endocrine and folate levels in serum

    At menstrual cycle day 2 before stimulation and on the day of hCG administration after stimulation treatment

Study Arms (2)

Mild Ovarian Stimulation

ACTIVE COMPARATOR
Procedure: Mild Ovarian Stimulation Treatment

Conventional Ovarian Stimulation

ACTIVE COMPARATOR
Procedure: Conventional Ovarian Stimulation Treatment

Interventions

Administration of a fixed dose of 150 IU/day rFSH s.c. (Puregon® NV Organon, Oss, The Netherlands) from cycle day 5 onwards. As soon as the leading follicle reached a diameter of 14mm, a GnRH-antagonist (Orgalutran®, NV Organon, Oss, The Netherlands) was administered at 0.25 mg/day s.c.. To induce final oocyte maturation a single s.c. dose of 10.000 IE hCG (Pregnyl®, NV Organon. Oss, The Netherlands) was administered.

Mild Ovarian Stimulation

Administration of GnRH agonist Triptorelin (Decapeptyl®, Ferring BV, Hoofddorp, The Netherlands) at 0.1 mg/day s.c., starting on cycle day 21 of the menstrual cycle preceding the actual stimulation cycle. After two weeks of the GnRH regimen, co-treatment with rFSH 225 IU/day s.c. (Puregon®, NV Organon, Oss, The Netherlands) was initiated. To induce final oocyte maturation a single s.c. dose of 10.000 IE hCG (Pregnyl®, NV Organon. Oss, The Netherlands) was administered

Conventional Ovarian Stimulation

Eligibility Criteria

AgeUp to 37 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • All couples with an indication for IVF/ICSI treatment in the Erasmus Medical Center

You may not qualify if:

  • Prior oocyte donation
  • Endometriosis
  • Hydrosalpinx
  • MESA/PESA
  • Age \>37
  • BMI \<18 or \>29kg/m2
  • Menstrual cycle disruptions
  • Indication for Intra Cytoplasmic Sperm Injection (ICSI)
  • Prior IVF treatment without embryo transplant
  • History of recurrent abortion
  • Abnormal karyotype of male/female
  • Uterine abnormalities

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Erasmus Medical Center

Rotterdam, South Holland, 3015GD, Netherlands

Location

Related Publications (5)

  • Forges T, Pellanda H, Diligent C, Monnier P, Gueant JL. [Do folates have an impact on fertility?]. Gynecol Obstet Fertil. 2008 Sep;36(9):930-9. doi: 10.1016/j.gyobfe.2008.07.004. Epub 2008 Aug 12. French.

    PMID: 18701335BACKGROUND
  • Fauser BC, Diedrich K, Devroey P; Evian Annual Reproduction Workshop Group 2007. Predictors of ovarian response: progress towards individualized treatment in ovulation induction and ovarian stimulation. Hum Reprod Update. 2008 Jan-Feb;14(1):1-14. doi: 10.1093/humupd/dmm034. Epub 2007 Nov 15.

    PMID: 18006561BACKGROUND
  • Verberg MF, Eijkemans MJ, Macklon NS, Heijnen EM, Baart EB, Hohmann FP, Fauser BC, Broekmans FJ. The clinical significance of the retrieval of a low number of oocytes following mild ovarian stimulation for IVF: a meta-analysis. Hum Reprod Update. 2009 Jan-Feb;15(1):5-12. doi: 10.1093/humupd/dmn053.

    PMID: 19091754BACKGROUND
  • Verberg MF, Macklon NS, Nargund G, Frydman R, Devroey P, Broekmans FJ, Fauser BC. Mild ovarian stimulation for IVF. Hum Reprod Update. 2009 Jan-Feb;15(1):13-29. doi: 10.1093/humupd/dmn056.

    PMID: 19091755BACKGROUND
  • Baart EB, Martini E, Eijkemans MJ, Van Opstal D, Beckers NG, Verhoeff A, Macklon NS, Fauser BC. Milder ovarian stimulation for in-vitro fertilization reduces aneuploidy in the human preimplantation embryo: a randomized controlled trial. Hum Reprod. 2007 Apr;22(4):980-8. doi: 10.1093/humrep/del484. Epub 2007 Jan 4.

MeSH Terms

Conditions

Infertility

Condition Hierarchy (Ancestors)

Genital DiseasesUrogenital Diseases

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER

Study Record Dates

First Submitted

September 24, 2009

First Posted

September 28, 2009

Study Start

October 1, 2004

Primary Completion

December 1, 2006

Study Completion

December 1, 2006

Last Updated

September 28, 2009

Record last verified: 2009-09

Locations