Markers for the early detection of colon cell proliferative disorders

Inventors

O'DONOVAN, Brian D. • MAHAJAN, Shivani

Assignees

Freenome Inc

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Publication Number

US-12372528-B2

Patent

Publication Date

2025-07-29

Expiration Date


Abstract

Systems, media, compositions, methods, and kits disclosed herein relate to a panel of autoantibody biomarkers for the early detection of colon cell proliferative disorders, including colorectal cancer. The presence or levels of the autoantibodies in a biological sample for the autoantibody panels described herein may be used for classifier generation, and as inputs in machine learning models useful to classify subjects in a population for the detection of colon cell proliferative disorders.

Core Innovation

The disclosure describes a method of treating colorectal cancer in a subject using a specified IgM and IgG autoantibody profile and a trained machine-learning model to detect colorectal cancer, followed by administration of a colorectal cancer treatment in response to detection. The autoantibody profile is obtained by measuring IgM and IgG autoantibodies from predetermined antigen sets in a biological sample. A computer processes the profile using the trained machine-learning model configured to distinguish subjects with colorectal cancer from subjects without colorectal cancer.

The subject matter also encompasses detection and classification of colorectal cancer and precursor lesions, including benign-polyp and advanced-adenoma groups, alongside optional methylation and protein profiles and monitoring applications. Drawing-sheet summaries report logistic-regression ROC and coefficient analyses distinguishing colorectal cancer or pre-cancer from negative controls and benign cases. Reported mean ROC AUC values include 0.75 for a top-five colorectal cancer panel and 0.78 for a top-six panel including UBE2S.

Claims Coverage

The provided relevant claims identify one independent claim with three inventive features directed to detecting and treating colorectal cancer.

Specified IgM and IgG autoantibody profile

The pre-determined set comprises IgM autoantibodies to at least three antigens selected from NME5, USP16, UBE2S, RNF41, CD20, and SDCBP; IgM autoantibodies to at least three selected from PELO, CDK4, MTP1, PRMT6, ZBTB2, and PCOLCE; IgG autoantibodies to at least three selected from ANKHD1, TXNL1, NAT6, Supt6h, PRDM8, OTUD5, PNKP, SRSF7, PCOLCE, and ASB9; IgG autoantibodies to at least three selected from TSSC4, BRD9, BCCIP, and TP53; or a combination of these groups.

Machine-learning detection of colorectal cancer

A computer processes the autoantibody profile using a trained machine-learning model configured to distinguish subjects with colorectal cancer from subjects without colorectal cancer.

Treatment following detection

Responsive to detection, the method administers a colorectal cancer treatment selected from surgery, radiofrequency ablation, chemotherapy, radiation therapy, targeted therapy, and immune therapy.

The independent claim combines specified IgM and IgG autoantibody panels with machine-learning detection and responsive colorectal cancer treatment.

Stated Advantages

Not explicitly described in patent.

Documented Applications

Detecting colorectal cancer from an autoantibody profile and treating the subject in response to detection.

Distinguishing colorectal cancer or colorectal pre-cancer from negative controls and colorectal benign cases using autoantibody-panel analyses and machine-learning classifiers.

Monitoring applications for colorectal cancer.

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