# US 2019/0169701 A1 · Method of predicting effect of medicinal therapy on cancer

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- Number: US 2019/0169701 A1
- Document ID: US20190169701A1
- Status: Published application
- Kind: A1
- Application number: 16/308,210
- Filed: 2017-03-15
- Published: 2019-06-06
- Earliest claimed: 2016-06-10
- Assignees: National Cancer Center; Miraca Research Institute G.K.
- Applicants: National Cancer Center; Miraca Research Institution G.K.
- Inventors: Hirofumi MUKAI; Toshikazu USHIJIMA; Satoshi YAMASHITA
- Web page: https://patentgrep.com/patent/US20190169701A1

## CPC

- C12Q 1/6883: for diseases caused by alterations of genetic material
- C12Q 1/6886: for cancer (immunoassay for cancer G01N33/575)
- A61K 39/395: Antibodies (agglutinins A61K38/36 {; as drug carriers A61K47/50}); Immunoglobulins; Immune serum, e.g. antilymphocytic serum
- A61K 45/00: Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
- A61P 35/00: Antineoplastic agents
- C12Q 1/68: involving nucleic acids
- G01N 33/53: Immunoassay; Biospecific binding assay; Materials therefor
- G01N 33/575: for cancer
- G01N 33/57515: of the breast
- C12Q 2600/154: Methylation markers
- C12Q: MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS (immunoassay G01N33/53); COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61P: SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)

## Abstract

The present invention provides a factor capable of predicting an effect of a medicinal therapy on a cancer such as HER2 positive cancer. More specifically, the present invention provides a method of predicting the effect of the medicinal therapy on the cancer, comprising: (1) analyzing a methylation level of a cytosine residue in one or more CpG sites present within a nucleotide sequence in a promotor region, an untranslated region or a translated region of HSD17B4 gene in a sample taken from a human subject; and (2) predicting the effect of the medicinal therapy on the cancer based on the analyzed methylation level.

## Claims

### Claim 1

A method of predicting an effect of a medicinal therapy on a cancer, the method comprising:
analyzing a methylation level of a cytosine residue in one or more CpG sites present within a nucleotide sequence in a promotor region, an untranslated region or a translated region of HSD17B4 gene in a sample taken from a human subject; and
predicting the effect of the medicinal therapy on the cancer based on the analyzed methylation level.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the sample taken from the human subject is at least one sample selected from the group consisting of a blood, a body fluid, a tissue, and a cell.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the CpG site is a CpG site normally present between positions 56 and 94 on the basis of a transcription start site.

### Claim 4 (depends on 3)

The method according to claim 3, wherein the CpG site is a CpG site normally present at positions 92 and 93 on the basis of the transcription start site.

### Claim 5 (depends on 1)

The method according to claim 1, wherein the cancer is a HER2-positive cancer.

### Claim 6 (depends on 1)

The method according to claim 1, wherein the cancer is a breast cancer.

### Claim 7 (depends on 6)

The method according to claim 6, further comprising measuring the expression of estrogen receptor in the sample.

### Claim 8 (depends on 1)

The method according to claim 1, wherein the medicinal therapy is a treatment with a HER2 inhibitor.

### Claim 9 (depends on 8)

The method according to claim 8, wherein the HER2 inhibitor is an antibody.

### Claim 10 (depends on 9)

The method according to claim 9, wherein the antibody is trastuzumab.

### Claim 11 (depends on 1)

The method according to claim 1, wherein the analyzing comprises analyzing with at least one means selected from the group consisting of bisulfite, primers, a nucleic acid probe, a restriction enzyme, an anti-methylated cytosine antibody, and a nanopore.

### Claim 12 (depends on 1)

The method according to claim 1, wherein the analysis is performed by a bisulfite sequencing method, a bisulfite pyrosequencing method, a methylation specific PCR method, a restriction enzyme landmark genome scanning (RLGS) method, a single nucleotide primer extension (SNuPE) method, a CpG island microarray method, a MethyLight method, a COBRA method, a mass spectroscopy (mass array) method, use of a methylation specific restriction enzyme, a high resolution melting analysis (HRM) method, a nanopore analysis method, an ICON probe method, a methylation specific MLPA method, or an immunoassay.

### Claim 13

A diagnosis kit for an effect of a medicinal therapy on a cancer, the diagnosis kit comprising an analytical means for analyzing methylation of a cytosine residue in one or more CpG sites present within a nucleotide sequence in a promotor region, an untranslated region or a translated region of HSD17B4 gene.

### Claim 14 (depends on 13)

The diagnosis kit according to claim 13, wherein the CpG site is a CpG site normally present between positions 56 and 94 on the basis of a transcription start site.

### Claim 15 (depends on 14)

The diagnosis kit according to claim 14, wherein the CpG site is a CpG site normally present at positions 92 and 93 on the basis of the transcription start site.

### Claim 16 (depends on 13)

The diagnosis kit according to claim 13, wherein the analytical means is at least one means selected from the group consisting of bisulfite, primers, a nucleic acid probe, a restriction enzyme, an anti-methylated cytosine antibody, and a nanopore.

### Claim 17

A medicinal therapy on a cancer, comprising:
analyzing a methylation level of a cytosine residue in one or more CpG sites present within a nucleotide sequence in a promotor region, an untranslated region or a translated region of HSD17B4 gene in a sample taken from a human subject; and
predicting an effect of the medicinal therapy on the cancer based on the analyzed methylation level;
selecting a human predicted to receive the effect of the medicinal therapy on the cancer; and
giving the medicinal therapy to the selected human.

### Claim 18

A method of selecting a treatment on a cancer, comprising:
analyzing a methylation level of a cytosine residue in one or more CpG sites present within a nucleotide sequence in a promotor region, an untranslated region or a translated region of HSD17B4 gene in a sample taken from a human subject; and
selecting the treatment on the cancer based on the analyzed methylation level.
