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Publications

Accurate Fetal Sex Determination from Maternal Blood at 8 Weeks Gestation

Journal of Pregnancy & Child Health – July 8, 2019

Prior studies have shown that SneakPeek® Early Gender Test can accurately determine fetal sex as early as 9 weeks gestation using a qPCR-based assay. The purpose of this study was to evaluate the clinical performance of SneakPeek® for noninvasive prenatal testing (NIPT) to determine fetal sex at an earlier time point: 8 weeks gestation.

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Self-Collection of Maternal Blood for Fetal Sex Determination Using Cell-Free DNA

Journal of Pregnancy & Child Health – March 1, 2019

SneakPeek® Early Gender Test (Gateway Genomics) is a qPCR-based assay that utilizes a microvolume of maternal plasma to determine the fetal sex as early as 9 weeks gestation. In this study, we aimed to evaluate the accuracy of SneakPeek Early Gender Test for fetal sex determination in self-collected maternal blood samples.

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Early Fetal Sex Determination using Cell-Free DNA in Micro-Volume of Maternal Plasma

Journal of Pregnancy & Child Health – December 2, 2017

A qPCR-based assay, SneakPeek® Early Gender Test (Gateway Genomics), has been developed to determine fetal sex as early as 9 weeks gestation using a micro-volume of maternal plasma. The purpose of this study was to assess the clinical performance of SneakPeek for noninvasive prenatal testing (NIPT) of fetal sex.

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1In laboratory testing, SneakPeek accurately determined fetal sex in 99.1% of 108 pregnant women at 8 weeks gestational age. See the peer-reviewed study in the International Journal of Pregnancy and Childbirth (Int J Pregn & Chi Birth. 2019; 5(4):135-137). In a separate laboratory test, fetal sex was accurately determined in 99.6% of 241 pregnant women at 9 weeks gestational age and later into pregnancy. See the peer-reviewed study in the Journal of Pregnancy and Child Health. (J Preg Child Health. 2017; 4:358).