Infertility Clinical Trial
Official title:
The Effect of Granulocyte-macrophage Colony Stimulating Factor (GM-CSF) During in Vitro Culture of Human Embryos on Subsequent Implantation Rates.
This study is to assess whether addition of 2 ng/ml GM-CSF into a specific culture medium will increase the chance of a pregnancy after in vitro fertilisation.
Throughout its development, the embryo is naturally exposed to a large number of cytokines
and growth factors that are present in the woman's reproductive organs. A growing body of
evidence indicates that these factors play a physiological role in the regulation of normal
development of the pre-implanted embryo and that these factors therefore help to increase
the implantation of the embryo and subsequently ensure optimal development of both foetus
and placenta. The cytokine granulocyte-macrophage colony-stimulating factor (GM-CSF) has
been shown to be present in the female reproductive organs during early pregnancy in mice,
sheep, cows and humans.
2 ng/ml GM-CSF has been proven safe in a previous study presented at the European Society of
Human Reproduction and Embrylogy (ESHRE) congress 2007 (A. Loft et al. 2007).
The present investigation (DK001) is to our knowledge the first large prospective randomised
in vivo study in humans. Previous publications counting one Korean pilotstudy of 154 women
prospectively randomised between culture medium with and without GM-CSF 2 ng/ml (Kim et al.,
2001), showing a significant effect of GM-CSF on embryo implantation rate.
Based on this knowledge we hypothesize that culture of human embryos in the presence of
GM-CSF will significantly increase the implantation rate also in a larger population.
This hypothesis is being tested by conducting a multicentre, randomised, parallel group,
double-blind, placebo-controlled study with adaptive design, performed at 14 study centres.
Each patient will participate in the study from retrieval of oocytes following standard
hormonal treatment and until the 12th gestational week. Further a follow-up will be
performed on pregnancies and children born.
The test group will include a standard culture medium with 2 ng/ml GM-CSF added from the
time of insemination, and the control group will be the exact same medium but without any
additions.
All procedures are according to standards of the clinic, with applied standard media except
for the patient randomised study medium which is used for oocyte insemination, embryo
culture and transfer. Embryo transfer will be performed Day 3.
An interim analysis has been performed for final sample size calculation.
;
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
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