View clinical trials related to Aneuploidy.
Filter by:A multinational multi-centre, randomized, controlled non-blinded trial with participation of three fertility clinics in Denmark and one in Spain to assess the efficacy and safety of preimplantation genetic testing for aneuploidy (PGT-A) in 37-41-year-old women.
Aneuploidy may be used as a more sensitive diagnostic tool to detect peritoneal metastasis compared to conventional cytology and imaging techniques. Our aim is to establish whether aneuploidy as detected in cfDNA (as a measure for ctDNA) in PLF of patients with GC may hold value as an additional staging and tumor evaluation method in GC patients.
Infertile women attending for PGT at the Centre of Assisted Reproduction and Embryology, Queen Mary Hospital and Kwong Wah Hospital will be recruited during ovarian stimulation for IVF. Subsequently, they will be randomly assigned on the day of oocyte retrieval by a laboratory staff into one of the following two groups in a 1:1 ratio : (1) the microfluidic chip group and (2) the density gradient centrifugation group for sperm preparation and subsequent use in fertilization. Other IVF procedures will be the same as the standard practice of the Centre. Both women and clinicians will be blinded from the group allocation i.e. a double blind study.
One of the most remarkable improvements in trophoectoderm cells biopsy is the robustness of diagnosis as result of analyzing multiple cells. However, there is a proportion of embryos that lack of diagnosis due to amplification failure or inconclusive results ranging between 0,4% and 6%. Information about embryo repeated biopsy after an inconclusive result in a first biopsy is very scarce. No specific conclusions can be drawn, due to the limited information currently available concerning reproductive outcomes for patients who had embryo transfer after a second biopsy, due to a first one having an inconclusive result. Investigators purpose a multicenter retrospective observational study with the aim to evaluate the reproductive potential of re-biopsied blastocyst with inconclusive results on preimplantation genetic screening for aneuploidy (PGT-A) using the implantation rate (IR) and ongoing pregnancy rate (OPR) as principal variables.
While IVF offers an effective treatment for infertility, a significant proportion of IVF cycles still result in failed implantation and early miscarriage. As such, new therapies that improve pregnancy outcomes are highly desirable. Both traditional and laser acupuncture during the IVF cycle has become a popular option for women looking to improve their pregnancy rates. However, studies looking to understand the effects of acupuncture on IVF have demonstrated contradicting results. While some studies show an improvement in pregnancy rates in women undergoing IVF with traditional acupuncture treatment, other studies show no difference. Moreover, there are few studies exploring the role of laser and traditional acupuncture in IVF cycles and the studies done thus far have shown no change in pregnancy rates. However, there have been no studies to-date that have looked at women who are receiving IVF for embryos with normal genetics. This is important because embryos with abnormal genetics are a major reason for failed implantation and miscarriage, which can make the effects of acupuncture on pregnancy rates difficult to evaluate. This study is a pilot study looking to better understand the role of laser and traditional acupuncture as a supplemental treatment in women undergoing euploid (normal genetics) embryo transfer. This is the first study to include only genetically normal embryos, which may help to better understand the effects of laser and traditional acupuncture on IVF outcomes.