View clinical trials related to Aneuploidy.
Filter by:GALAXY is a registry research study that plans to learn more about individuals with X&Y variations (also called sex chromosome aneuploidies) through collecting information from medical records.This includes genetic tests, imaging, medications, and more for hundreds of patients seen at a number of clinics across the US. The purpose of the GALAXY Registry is to collect and store this information with the overall goal to improve health outcomes in individuals with X&Y variations and the care they receive.
This observational study aims to recruit pregnant women between 18 to 24 weeks of gestation to investigate the relationship between amniotic membrane thickness and fetal chromosomal abnormalities. The primary objectives are to establish whether a correlation exists between the measured thickness of the amniotic membrane and the presence of chromosomal abnormalities in the fetus, and to determine a cutoff value for amniotic membrane thickness that could indicate an increased risk of such abnormalities. Additionally, the study seeks to assess whether the inclusion of amniotic membrane thickness as a biomarker can enhance the detection rate of non-invasive prenatal testing (NIPT) and nuchal translucency (NT) for chromosomal abnormalities.
Purpose: To evaluate preimplantation genetic testing counseling interventions on patients undergoing in vitro fertilization treatment. Preimplantation genetic testing for aneuploidy (PGT) allows patients undergoing in vitro fertilization (IVF) to screen embryos for genetic disorders. Preimplantation genetic testing for aneuploidy (PGT-A) is the testing most commonly ordered, and it screens for whole chromosome and large partial chromosome duplications or deletions. Currently, patient counseling varies based on the clinic, ranging from appointments to group seminars with a genetic counselor (GC), geneticist or reproductive endocrinology and infertility (REI) physicians for education regarding PGT. Patient knowledge regarding PGT has been varied with some studies indicating sufficient knowledge, while other studies have shown a potential lack of knowledge. One study indicated a third of patients had regret regarding their decision of whether or not to use PGT-A during IVF and another study indicated patients who choose to undergo PGT did so for reasons that were not evidence based. Additionally, educational materials have been illustrated to be inconsistent and with inappropriate literacy in regards to PGT counseling. One study has shown the potential of improvement with written intervention amongst providers and patients in regards to PGT related to a single genetic condition. The investigators hope to assess the efficacy of PGT-A educational and counseling interventions on patients undergoing IVF.
The study aims to compare two different protocols for first trimester screening of aneuploidies, one based on nuchal translucency and NIPT and another one based on the integration between combined test and NIPT, in order to identify which is the most adequate for the Campania region. In particular, a cost-benefit comparison will be made which will take into account for each method: - Actual costs; - Percentage of patients who agree to undergo the proposed screening and number of patients who undergo extra tests not included in the screening protocol; - Post-invasive procedure miscarriage rate; - False positives (fetuses undergoing an invasive procedure for a positive screen, which have a normal karyotype).
This is a prospective randomised study of the evaluation of the clinical IVF results after invasive PGT-A embryo selection versus Non-invasive PGT-A assisted embryo selection in subfertile women.
This is a prospective randomised study of the evaluation of the clinical IVF results after time lapse assisted embryo selection versus Non-invasive PGT-A assisted embryo selection in subfertile women.
This study aims to validate the embryo culture medium analysis by nuclear magnetic resonance spectroscopy, as a faster and less-costly alternative to preimplantation genetic test for aneuploidy which could significantly enhance embryo selection and the success rate of assisted reproductive technologies.
To determine the diagnostic accuracy of non-invasive preimplantation genetic testing for aneuploidy (NI-PGT-A) for embryo selection.
This study intends to randomly group the patients with advanced maternal age and poor ovarian response, and the study group will undergo polar body biopsy, and the next-generation sequencing(NGS) technology will be used to evaluate the polar body euploidy and then predict the euploidy of the oocyte. Embryo transfer priority according to the NGS test results and morphological scores. In the control group undergo routine culture and the transfer priority is determined according to the morphological score only. The transfer of frozen embryos at the cleavage or blastocyst stage was permitted. Cumulative live birth rate, miscarriage rate and time required to obtain a live birth up to two ovulatory cycles in a year.
The study is conducted to evaluate the sensitivity and specificity of non-invasive preimplantation genetic testing for aneuploidy (NiPGT-A) using cell free DNA into spent culture medium (SCM).