Active clinical trials for "Infertility"

The purpose of the non-inferiority study is to evaluate the clinical efficacy and the safety of two different subcutaneous FSH preparations (Fostimon versus Gonal-F) for controlled ovarian hyperstimulation in a GnRH-antagonist cycle.

The effect of use of the growth hormone with antagonist protocol on the outcome of the IVF/ICSI cycles in poor responders.

The chances to achieve pregnancy after retrieving >15 oocytes are not good, probably because of bad effect on the endometrium (uterine inner lining). Therefore, in most such cases the investigators prefer to freeze all embryos, and transfer in a thaw cycle. With the introduction of oocyte vitrification (very fast cooling) technology, a new option emerged: to freeze un-fertilized eggs, to be fertilized and used later in a thaw cycle. The purpose of this study is to compare the outcome of these two approaches.

To test the hypothesis that adding estradiol (E2) to progesterone supplementation later in the luteal phase of in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI) cycles, rather than earlier in the luteal phase, improves clinical pregnancy rates (PRs).

Study Objectives: To prove that the use of GnHR agonist for final oocyte maturation results in a higher percentage of mature oocytes than the use of hCG. To show an advantage in women's satisfaction in the proposed protocol versus the standard antagonist protocol In the study group women will receive GnRH agonist for oocyte maturation, followed by ovum pick-up which will be performed 35 hours later. Embryo transfer will be performed 48-72 hours after ovum pick-up. Luteal support will include HCG 1500 IU. Blood samples for BHCG, progesterone and estradiol will be obtained 14 days after embryo transfer.

Study if supporting luteal phase of high responder (high egg production or high Estradiol level) long Gn_Rh agonist protocol ICSI/IVF cycle by combined Estradiol and progesterone impairs or improves outcome in terms of pregnancy and implanation rates.

This was a prospective, randomised, open comparative monocentric phase IIIb study to evaluate the convenience, safety and efficacy of follitropin alfa (Gonal-f) liquid pen compared with follitropin beta (Puregon) liquid pen.

The objective of this study is to evaluate the effect of the prolongation of luteal support on the ongoing pregnancy rate (beyond 12 weeks of gestation )in recFSH/GnRH antagonist cycles.

The objective of this study is to evaluate the efficacy of embryo transfer procedure guided by transvaginal ultrasound versus abdominal ultrasound in recipients of oocytes as well as the advantages and disadvantages of the new technique.

The aim of this study is to evaluate both pharmaceutical therapy and advanced treatment techniques for infertile patients requiring in-vitro fertilization utilizing donor eggs.