Ectopic pregnancy kits and methods

Patent metadata

Field	Value
Publication number	US-12486535-B2
Application number	US-201916293415-A
Country	US
Kind code	B2
Filing date	Mar 5, 2019
Priority date	Mar 5, 2018
Publication date	Dec 2, 2025
Grant date	Dec 2, 2025

Abstract

The disclosure generally provides methods for early detection of ectopic pregnancy, and utilization of endometrial molecular signatures. This disclosure more specifically relates to gene sets that, in aggregate, reliably classify the location of a nonviable pregnancy as intrauterine or ectopic and can identify a patient for therapeutic intervention. The disclosure also illustrates cilia-associated genes as a classifier for ectopic pregnancy with high accuracy for delineating ectopic from intrauterine pregnancies.

First claim

We claim:

1 . A method of treating an ectopic pregnancy in a patient comprising: obtaining results of an applied k-Nearest Neighbor (KNN) algorithm on mRNA expression levels of a set of biomarkers in a biological sample obtained from the patient,
wherein the applied KNN algorithm was trained on expression data obtained from historical patient samples having ectopic or intrauterine pregnancies for the set of biomarkers consisting of: ARMC3, C20orf85, CFAP47, CFAP126, DNAH12, LRRC46, LPAR3, RSPH4A, STOML3, TPPP3, WDR49, and ZBBX, and optionally further consisting of at least one of: AJ239322.3, CHST6, CLEC4M, CNR1, COL3A1, DSP, HLA-DPA1, HPSE2, LINC00890, MS4A8, OMD, OMG, PTGERN, PTGIS, FRFTN2, RNU4-21P, RP11-314M24.1, SNORA72, SORBS1, SPARCL1, WDFY4, and Y RNA.58-201; and wherein the results indicate that the patient has an ectopic pregnancy and not a normal or abnormal intrauterine pregnancy; and treating the patient with methotrexate or by surgery.

2 . The method of claim 1 , wherein the patient is diagnosed with an early-stage ectopic pregnancy.

3 . The method of claim 1 , wherein the patient is in the first trimester of pregnancy.

4 . The method of claim 1 , wherein the abnormal intrauterine pregnancy is selected from the group consisting of a pregnancy of unknown location (PUL), a non-viable pregnancy of unknown location (NV-PUL), and a non-viable intrauterine pregnancy (NV-IUP).

5 . The method of claim 1 , wherein the method further comprises performing a transvaginal ultrasound (TVUS), detecting serum human chorionic gonadotropin (hCG), or both.

6 . The method of claim 1 , wherein mRNA expression levels is measured using a binding agent to one of each biomarker in the set of biomarkers.

7 . The method of claim 6 , wherein the binding agent is a polynucleotide capable of hybridizing to one of each biomarker in the set of biomarkers.

8 . The method of claim 7 , wherein the polynucleotide is labeled.

9 . The method of claim 8 , wherein the label is indirectly linked to the polynucleotide.

10 . The method of claim 8 , wherein the label comprises biotin.

11 . The method of claim 10 , wherein the biotin is bound to a streptavidin-conjugated phycoerythrin (SAPE).

12 . The method of claim 7 , wherein the polynucleotide is immobilized on a microarray.

13 . The method of claim 7 , wherein the polynucleotide further comprises a capture probe.

14 . The method of claim 7 , wherein the set of biomarkers further consists of at least one of: AJ239322.3, CHST6, CLEC4M, CNR1, COL3A1, DSP, HLA-DPA1, HPSE2, LINC00890, MS4A8, OMD, OMG, PTGFRN, PTGIS, FRFTN2, RNU4-21P, RP11-314M24.1, SNORA72, SORBS1, SPARCL1, WDFY4, and Y RNA.58-201.

15 . The method of claim 6 , wherein the binding agent is a polypeptide capable of binding to one of each biomarker in the set of biomarkers.

16 . The method of claim 15 , wherein the polypeptide is labeled.

17 . The method of claim 16 , wherein the label is indirectly linked to the polypeptide.

18 . The method of claim 16 , wherein the label comprises biotin.

19 . The method of claim 18 , wherein the biotin is bound to a streptavidin-conjugated phycoerythrin (SAPE).

20 . The method of claim 15 , wherein the polypeptide is immobilized on a microarray.

21 . The method of claim 15 , wherein the polypeptide further comprises a capture probe.

22 . The method of claim 15 , wherein the set of biomarkers further consists of at least one of: AJ239322.3, CHST6, CLEC4M, CNR1, COL3A1, DSP, HLA-DPA1, HPSE2, LINC00890, MS4A8, OMD, OMG, PTGFRN, PTGIS, FRFTN2, RNU4-21P, RP11-314M24.1, SNORA72, SORBS1, SPARCL1, WDFY4, and Y RNA.58-201.

Assignees

• Us Gov Sec Army

Inventors

• Ortogero Nicole E
• Burney Richard O
• Chow Gregory E
• Lentscher Jessica
• Colburn Zachary

Classifications

• C12Q2600/158

  Expression markers · CPC title

• C12Q2600/112

  Disease subtyping, staging or classification · CPC title

• C12Q1/6876 Primary

  Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes · CPC title

• C12Q1/6883 Primary

  for diseases caused by alterations of genetic material · CPC title