Active clinical trials for "Infertility"

At present, the evaluation criterion of endometrial receptivity is controversial. The development of a molecular diagnostic tool, the endometrial receptivity array (ERA) for diagnosis of endometrial receptivity . But use of this test in patients with RIF has shown that the window of implantation (WOI) is displaced in only a quarter of these patients and use of a personalized embryo transfer (pET) on the day designated by ERA improves reproductive performance with higher cost .what is known to the others'population? The morphological changes observed on histology for each specific day after ovulation were described by Noyes and his colleagues in 1950 . An endometrial biopsy that shows a difference of more than 2 days between the histologic dating and actual day after ovulation is considered to be ''out of phase''. But such pET studies according to the Noyes criterion in hormone replacement cycle are lacking . The aim of this study is to explore the transcriptomic profile of endometrial receptivity in different histological dating of hormone replacement cycle and its clinical application.

Women between 18-39 years old who had been infertile (primary or secondary) for at least 1 year were recruited. In a parallel assignment eligible participants were randomized to receive either a single, site-specific endometrial injury guided by hysteroscopy (Study group) or no intervention (Control group). Natural cycle folliculometry + timed sexual intercourse were offered for all participants for the ongoing and the immediate 2 concecutive cycles. Clinical pregnancy rates were the primary outcome and miscarriage rates were the secondary outcome measures.

Prospective, single-center, single-blind, randomized, controlled, two-arm, interventional study.

The investigators propose to assess one method of sperm selection based on the characteristics of spermatozoa recently introduced: Sperm Selection Assay, which used a gradient of concentration of progesterone to act as chemoatractant of spermatozoa of better quality. We will assess in vitro fertilization with two techniques (SSSA versus traditional technique of swin up) as well as embryo development.

The purpose of this study is to evaluate intravaginal culture using the medical device INVOcell to generate day 5 blastocysts in comparison to traditional IVF.

This study evaluates the difference in pregnancy rate transferring a healthy blastocyst in natural or artificial cycle.

To salvage the luteal phase and improve pregnancy rate in antagonist IVF/ICSI cycles triggered with GnRH agonist. Two strategies are compared dual trigger with GnRH agonist plus 1000 IU of HCG or triggering with GnRH and giving a booster dose of HCG (1500 IU) on the day of ovum pickup.

Recurrent pregnancy loss (RPL) is a multifactorial disorder which affects about 1% of all couples and challenges both patients and clinicians technically and emotionally. IVF clinics see higher prevalence of RPL, since many RPL patients are seeking for assist reproduction treatment with or without other infertile factors. Guidelines for evaluation and treatment of RPL patients include screening for uterine abnormalities, parental chromosomes, autoimmune antibodies and cure gynecological infections, but there are still half of RPL patients remain unexplained. The documented high incidence of chromosomal errors in first-trimester miscarriages and an increased rate of aneuploidy in patients with RPL has led to the theory that screening embryos before implantation for aneuploidy may decrease the risk of a subsequent loss and serve as a possible treatment. The technology, indications of use, and even terminology for genetic testing of embryos have greatly changed since the first PGD(pre-implantation genetic diagnosis) baby was born in 1990. The current best evidence shows blastocyst biopsy followed by new rapid comprehensive chromosome screening(termed pre-implantation chromosomal screening or comprehensive chromosome screening, PCS or CCS, or the investigators generally termed PGS) based on array-comprehensive genome hybridization(aCGH), single nucleotide polymorphism array(SNP-array) or next generation sequencing(NGS), to be the most powerful technology. However, for whom this PGS technique is most suitable to achieve improved clinical outcome have not yet been identified by well defined, ITT based research with carefully selected control and adequate sample size. The investigators research is to determine whether in vitro fertilization (IVF)/ intracytoplasmic sperm injection (ICSI) combined with SNP-array based pre-implantation comprehensive chromosome screening (CCS) will improve the clinical outcome of infertile female patients with recurrent spontaneous abortion history.

The transfer of frozen / thawed embryos has been routinely performed in the last 30 years as part of Assisted Reproduction treatment (ART). Currently, more than 50% of couples submitted to ART have surplus embryos eligible for freezing followed by transfer in subsequent cycles. Therefore the selection criteria for the thawed embryos to be transferred must be rigorous in order to maximize pregnancy and of live birth rates. Usually, the evaluation of the embryos before transfer can be performed based on blastomeres survival after a short culture period between thaw and embryos transfer, i.e., 2 to 5 hours, or based on embryo development over a prolonged period of culture (18h to 24h). Post-thaw embryo culture might have an impact on the recovery of mitosis and normal cellular functions. However, until now, there is no consensus in the literature on which post-thaw culture interval has a better impact on pregnancy and live birth rates. Also, blastocysts formation after freezing/thawing of embryos at cleavage stage may bring relevant information about post-thaw culture. Moreover, this strategy can be used as an alternative treatment. Therefore, the authors proposed this prospective randomized, triple-blind study to evaluate the impact of post-thaw embryo culture on the pregnancy and live birth rates.

This study evaluate the percentage of women with thin endometrium who achieve an endometrial thickness equal to or greater than 7 mm after administration of PRGF (plasma rich in growth factors)