Active clinical trials for "Chromosome Aberrations"

The purpose of the study is the identification of chromosomal aberrations in non-small cell lung cancer (NSCLC) . The imaging system is intended for diagnostic use as an aid to the pathologist in the detection, counting and classifying ALK FISH stained lung samples.

The purpose of this study is to collect maternal blood samples from pregnant women carrying a fetus with a confirmed diagnosis of chromosomal abnormality or genetic disorder including microdeletions in order to further develop a non-invasive prenatal screening test based on fetal DNA isolated from maternal blood.

The purpose of the study is the identification of chromosomal aberrations in urine samples. The imaging system is intended for diagnostic use as an aid to the pathologist in the detection, counting and classification of UroVysion FISH stained Urine samples.

The objectives of the clinical study are to demonstrate the accuracy of our proprietary algorithm method to determine the genetic health of the developing fetuses in a multiple gestation pregnancy from a maternal blood sample. The long term goal of this study will be the development of a method of minimally invasive prenatal diagnosis that has a higher sensitivity and lower false positive rate in the intended population (e.g. multiple gestation pregnancies) than other currently available screening tests. This will result in fewer unnecessary amniocenteses and Chorionic Villus Sample (CVS) procedures, which are associated with a risk of miscarriage.

This multi-center prospective observational study is designed to track birth outcomes and perinatal correlates to the Panorama prenatal screening test in the general population among ten thousand women who present clinically and elect Panorama microdeletion and aneuploidy screening as part of their routine care. The primary objective is to evaluate the performance of Single Nucleotide Polymorphism (SNP)-based Non Invasive Prenatal Testing (NIPT) for 22q11.2 microdeletion (DiGeorge syndrome) in this large cohort of pregnant women. This will be done by performing a review of perinatal medical records and obtaining biospecimens after birth to perform genetic diagnostic testing for 22q11.2 deletion. Results from the follow-up specimens will be compared to those obtained by the Panorama screening test to determine test performance. Specific test performance parameters will include: PPV, specificity, and sensitivity.

This study will examine blood or other tissue samples from patients with Fraser syndrome and patients with Fryns syndrome to try to identify the gene responsible for these diseases. Fraser syndrome is characterized by congenital abnormalities including cryptophthalmos (lack of eyelid formation), syndactyly (webbed fingers or toes) and abnormal genitalia. Patients may also have abnormalities of the nose, ears and larynx (voice box), cleft lip or palate, and kidney agenesis. Fryns syndrome is characterized by hernia through the diaphragm, cloudy cornea, coarse facial features, cleft lip or palate, abnormal fingers and toes, heart, kidney and brain malformations and hydrocephalus (accumulation of fluid around the brain). This protocol consists of laboratory study only; it does not involve patient care or patient counseling. Patients with Fraser syndrome or Fryns syndrome are eligible for this study. Parents and healthy siblings of patients will also be included for genetic study, and parents of children with undiagnosed multiple congenital anomalies syndromes will be included for comparison study. Participants will provide a blood sample (about 8 to 10 teaspoons from adults; 1 to 3 teaspoons from children) or sample of skin cells collected by swabbing the inner surface of the cheek. Some patients may undergo a skin biopsy, in which a small skin sample (about 1/8-inch in diameter) is surgically removed. The tissue samples will be used to obtain DNA (genetic material) for laboratory testing. A permanent cell line-a collection of cells grown in the laboratory from the original tissue specimen-will also be established to enable additional testing in the future.

This study aims to validate a non-invasive method of chromosomal screening (NICS), based on the Multiple Annealing and Looping Based Amplification Cycles- Next-generation Sequencing (MALBAC-NGS) technology, in order to determine the chromosomal endowment of a blastocyst from the DNA of the embryonic culture medium. The chromosomal status of the embryo from an embryo biopsy of trophoectoderm will be established (usual clinical practice), the chromosomal endowment from the DNA of the embryonic culture medium will be determined, and the results using the NICS and the conventional invasive method (Preimplantation Genetic Testing for Aneuploidy [PGT-A]) will be compared.

The purpose of this study is to collect blood from families with a child who has been diagnosed with a chromosomal disorder including microdeletions in order to further develop a non-invasive prenatal screening test based on fetal DNA isolated from maternal blood.

The primary purpose of this study is to collect maternal blood samples from pregnant women to develop a non-invasive prenatal diagnostic test based on fetal DNA isolated from maternal blood.

The study will determine the performance of the Infinium HD Test. The primary objective of the study is to assess the performance of the Infinium HD Test using banked DNA samples extracted from whole blood patient samples derived from the intended use population. The secondary objective of the study is to determine the background number of chromosomal abnormalities per person in the general population based on the resolution of the Infinium HD Test.