Analytical methods for cell free nucleic acids and applications
US11674183B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2019 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Aug 5, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12Q2600/178
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The present invention is directed to an in vitro method of detecting cell free nucleic acids, preferably cell free DNA (cfDNA) in a body fluid sample from an individual or a patient, wherein the method comprises the step of accurately and sensitively determining the concentration of cell free nucleic acid in the sample and/or determining the concentration or amount of said cell free nucleic acid of a size range and/or the index of integrity or size fraction ratio (SFR) of said cell free nucleic acid and/or the determination of the presence of genetic polymorphisms (such as known Single Nucleotide Polymorphisms (SNPs) or mutations). The invention encompasses also a method to discriminate body fluid individuals where cfDNA are highly released by comparing the size profile obtained for at least one of three size ranges of cfDNA. The invention also encompasses a method for analysing cell free nucleic acids in individuals for the diagnosis, prognosis or for assessing the evolution of a physiological state, such as the progression of a tumor or metastatic cancer, for monitoring the efficacy of a cancer treatment in a patient or for theragnostic purposes implementing the analysis of these…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.