NCT02278874.

Trial name or title	High risk multiple gestation study.
Target condition and reference standard(s)	Target conditions: T21, T18, T13 and SCA. Reference standards: fetal karyotype (amniocentesis or CVS) or genetic testing from cheek swab or saliva from live‐born children.
Index and comparator tests	gNIPT by TMPS by Natera, Inc.
Starting date	August 2014.
Contact information	Joanne Stone Mt. Sinai Hospital, New York
Aim to study	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.
Funding source or sponsor of the study	Study funded by Natera, Inc., Mount Sinai Hospital New York, Montefiore Medical Center, Long Island Jewish Medical Center and Tufts Medical Center.
Information about the authors contacted	No need for further contact.
Notes