Active clinical trials for "Infertility"

The investigators plan to retrospectively analyze clinical data from 14,189 fresh ICSI cycles in Reproductive and Genetic Hospital of CITIC-Xiangya from January 2016 to December 2017.The investigators will regard total progressive sperm number of 2 x 10^6 after pretreatment as the boundary value, and will divide total progressive sperm number of 2 x 10^6 after pretreatment into 2 x 10^6 or higher and < 2 x 10^6 groups, and will further divide < 2 x 10^6 group into: = 0, (0,10^6], (10^6, 2 x 10^6) three groups. Propensity score matching will be used to balance the baseline data between four groups. The matching variables are age, female BMI, AFC, AMH and ICSI.

This study could help identify aggravating or protective genetic polymorphisms associated with cerebral palsy. Populations of premature babies at different risk of cerebral palsy could thus be individualized with an impact on their monitoring and on the pathophysiological understanding of the processes leading to neurological lesions.

Birth weight (BW) is higher after frozen embryo transfer (FET) than after fresh embryo replacement. No study has compared the BW of siblings conceived using the same oocyte/embryo cohort. The aim of this study was to determine whether the freezing-thawing procedure is involved in such difference.

The microbiome plays an important role in health and in some unknown etiologies. Some previous studies have identified bacteria in semen as a potential factor in male infertility. More studies are needed to discover associations between microbiomes and semen quality. In this study, forty semen samples from donors candidates will be collected where clinical criteria for seminal quality (volume, concentration, motility and morphology) will be measured and bacterial communities examined. With the next-generation sequencing of gene technology and bioinformatic analysis, we can investigate the associations between bacterial communities and seminal quality. It would be interesting to know if the proportion of certain bacteria is significantly higher in samples of normal seminal quality or significantly higher in samples of low seminal quality. This study could contribute to the current understanding of certain etiologies of male fertility.

GnRH agonist triggering is used during ART in order to reduce the risk of OHSS. Some studies described that in up to 5% of the cycles triggered with GnRH agonist, a lack of respone or suboptimal response was displayed. The investigators aim to asses the possibility to predict the respone to ovulation triggering by the response to decapeptyl in the follicular phase of the same cycle.

We will investigate potential correlation between SpermComet DNA fragmentation assay results and IVF cycle outcome.

Multidisciplinary, multicentric, cross-sectional study on men in infertile couples who conduct their sperm test through their diagnosis of infertility

The purpose of this study is to explore a method to identify the viability of day-3 poor quality embryos

Data collection and comparison of relationships between patient demographics, stimulation protocols and outcomes, retrieval and transfer outcomes, number and quality of oocytes and embryos retrieved and transferred, pregnancy rates and pregnancy outcomes.

This study aims to learn about the needs and feelings of women who are infertile. Being infertile means not being able to have a child without the help of a third party. There are other options for building a family. The researchers are interested in the participants' thoughts about these options and want to learn about the experiences of infertile women due to cancer treatment as well as women who are infertile due to other causes. The researchers hope that what they learn will allow them to better care for infertile women in the future.