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Title:
USING NUCLEIC ACID SIZE RANGE FOR NONINVASIVE PRENATAL TESTING AND CANCER DETECTION
Document Type and Number:
WIPO Patent Application WO/2019/085988
Kind Code:
A1
Abstract:
Size-band analysis is used to determine whether a chromosomal region exhibits a copy number aberration or an epigenetic alteration. Multiple size ranges may be analyzed instead of focusing on specific sizes. By using multiple size ranges instead of specific sizes, methods may analyze more sequence reads and may be able to determine whether a chromosomal region exhibits a copy number aberration even when clinically-relevant DNA may be a low fraction of the biological sample. Using multiple ranges may allow for the use of all sequence reads from a genomic region, rather than a selected subset of reads in the genomic region. The accuracy of analysis may be increased with higher sensitivity at similar or higher specificity. Analysis may include fewer sequencing reads to achieve the same accuracy, resulting in a more efficient process.

Inventors:
LO YUK-MING DENNIS (CN)
CHIU ROSSA WAI KWUN (CN)
CHAN KWAN CHEE (CN)
JIANG PEIYONG (CN)
Application Number:
PCT/CN2018/113640
Publication Date:
May 09, 2019
Filing Date:
November 02, 2018
Export Citation:
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Assignee:
UNIV HONG KONG CHINESE (CN)
GRAIL INC (US)
International Classes:
C12Q1/68
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WO2016112850A12016-07-21
WO2016008451A12016-01-21
WO2016116033A12016-07-28
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WO2009013496A12009-01-29
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See also references of EP 3704264A4
Attorney, Agent or Firm:
INSIGHT INTELLECTUAL PROPERTY LIMITED (CN)
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