View clinical trials related to Aneuploidy.
Filter by:This prospective blinded study will assess the diagnostic capability of an informatics enhanced SNP based technology (Parental Support) to identify pregnant women who are carrying a fetus with an aneuploidy from fee floating DNA in the maternal blood.
A pragmatic, multicentre, randomized double-blind controlled trial with an intention-to-treat analysis, of the use of preimplantation genetic screening (PGS) for aneuploidy by means of microarray comparative genomic hybridization (CGH) for the chromosomal analysis of the polar bodies (PB) of oocytes collected after ovarian stimulation for in vitro fertilization (IVF), and with the intention to assess the genetic competence of oocytes of advanced biological age, and the effect of this technique on reproductive outcome.
A diagnostic peripheral maternal blood test taken and the free foetal DNA is analysed and the presence of trisomies using a novel method.
This is an observational study to develop and evaluate a blood based prenatal blood test. Pregnant women confirmed to be carrying a fetus with a chromosomal abnormality will be eligible. Subjects will be asked to provide a blood sample and a limited amount of clinical data that will be recorded on a case report form. All samples and clinical data will be stripped of subject identifiers prior to submission to Ariosa.
The specimen collection is designed for the purpose of the development of a noninvasive prenatal test for T21.
Can a combination of prenatal screening blood tests, early ultrasound, and a 3D ultrasound of the fetal face at approximately 20 weeks gestation identify fetuses with congenital anomalies and predict maternal and fetal complications?
The purpose of this study is to develop and evaluate a blood test for pregnant women for detection of fetal aneuploidy.
Several stimulation protocols have been used in in vitro fertilization (IVF) in a cycle of egg donation; recombinant FSH and human FSH are included. The effect of each kind of hormone on aneuploidy rate it is unknown. If there was an increase on aneuploidy rate of one of these stimulation protocols, there will be a negative effect on the successful rates in the egg donation cycles. The aim of this study is to observe if there is a different in aneuploidy rate and morphological oocyte parameters between different stimulation protocols.
The primary objective of this study is to determine the performance characteristics (sensitivity and specificity) of the Verinata Health Test to detect fetal Trisomy 21 (T21) compared to karyotype results obtained by amniocentesis or chorionic villus sampling (CVS). Secondary objectives are to assess performance of the test to detect male gender (XY) and other less common aneuploidies (Trisomy 13 (T13), Trisomy 18 (T18), and Turner Syndrome (45, X)) compared to clinical fetal karyotype.
To collect samples for the purpose of developing and optimizing an in vitro noninvasive prenatal diagnostic (NIPD) test. The NIPD test employs circulating cell free (ccff) DNA extracted from whole blood samples collected from women who are pregnant with a fetus previously determined to have a chromosomal abnormality. The NIPD result will be compared to the standard test results obtained from other test methods such as karyotype, FISH, QF-PCR, and/or any commercially available NIPD test.