View clinical trials related to In Vitro Fertilization.
Filter by:The purpose of this study is to investigate the impact of melatonin administration on in vitro fertilization (IVF/ICSI) outcomes namely the total number and quality of the oocytes and embryos in the prospective poor responders.
The purpose of this study is to determine the impact of the use of calcium ionophore on the ICSI outcomes in couples with severe male factor infertility. Investigators conduct a randomized controlled trial on the sibling oocyte to justify the use of calcium ionophore in these cases.
To test whether long-acting Triptorelin on pituitary down-regulation can improve the clinical pregnancy rate and reduces the incidence of ovarian hyperstimulation syndrome (OHSS) in infertile high-risk patients with polycystic ovaries (PCOs) who underwent in vitro fertilization (IVF) or Intracytoplasmic sperm injection
Corifollitropin alfa, single dose administered sustains multiple follicular development for 7 days. However, It may induce ovarian hyperstimulation syndrome (OHSS), especially in high responder women such as patients of polycystic ovary syndrome (PCOS). In GnRH antagonist protocol with agonist triggering of final oocyte maturation, following embryo cryopreservation can almost eliminate the risk of OHSS. To decrease the injection burden and prevent OHSS in PCOS patients undergoing IVF treatment, ovarian hyperstimulation with Corifollitropin alfa in GnRH antagonist protocol and GnRH agonist triggering of final oocyte maturation, following elective embryo cryopreservation was designed in this study. The purpose of this trial was conducted to confirmed whether this novel protocol could prevent OHSS, decreased the injection burden of PCOS patients and single dose corifollitropin alfa could support multiple follicular growth for 7 days.
Current human IVF technology employs two strategies with respective culture media for embryo development; 'let the embryo choose' (utilizes single step media) and 'back-to-nature' (utilizes sequential media). To our knowledge, there is not any sibling oocyte study to evaluate potential advantages/disadvantages of these strategies on one another.
Choriogonadotropin alfa (Ovidrel®) is a recombinant hCG (rhCG) preparation derived from genetically engineered Chinese hamster ovary cells, which is widely used for final oocyte maturation triggering in assisted reproductive technology (ART).Recombinant hCG has been investigated about its safety and efficacy comparing with urinary hCG, but still the optimal dose of rhCG is questionable. From former studies, there only have been proven that high dose of hCG can make ovarian hyperstimulation syndrome (OHSS) in usual condition. On the other hand, we hypothesize that high dose of hCG may improve oocyte maturity in poor responders who cannot easily provoke OHSS. Hence, this study will assess the comparative efficacy and safety of 250mcg and 500mcg of rhCG in ART treatment cycle.
Ovarian hyperstimulation syndrome (OHSS) is the most serious complication of ovulation induction and is a life threatening iatrogenic complication. In patients with GnRH agonist protocol, both withdrawing GnRH agonist and GnRH antagonist administration are associated with a reduction in (E2) levels with subsequent decreasing the incidence and severity of OHSS. This work is to compare the clinical and endocrine outcome response of cycles in which GnRH agonist withdrawing with cycles in which the GnRH antagonist administration in patients at risk of severe OHSS.
Frozen- thawed embryos obtained by IVF treatments are transferred to the uterus immediately following thawing or after incubation for additional 24-72 hours. The two methods are routine in IVF laboratories. In this study the investigators would like to compare between these two methods in terms of implantation rate, pregnancy rate and delivery.
Hypothesis to be tested is whether follicular addition of Methylprednisolone can efficiently control late follicular progesterone rise during IVF treatment
Embryo transfer is the last step in the IVF process. it is now recognized that this step should be done carefully and that it affects success rates. in recent years, sonographic guidance appears to increase success rates.