Immunocompetence assessment by adaptive immune receptor diversity and clonality characterization
First Claim
1. A method for treating cancer comprising administering an effective amount of one or more immunotherapy agents to a subject in need thereof that has been identified as having a tumor comprising infiltrating lymphocytes with a high clonality rating,wherein the clonality rating is determined by identifying and quantifying the number of unique rearranged adaptive immune receptor (AIR) sequences obtained from a sample comprising the tumor comprising infiltrating lymphocytes from the subject, andwherein the clonality rating is characterized as a high clonality rating if the combined frequency of occurrence of the observed rearranged AIR sequences is no more than 10% of the total number of rearranged AIR sequences present in the sample.
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Accused Products
Abstract
Disclosed are methods for determining the immunological status of the adaptive immune system of a subject by identifying and quantifying rearranged DNA (and/or subsequently transcribed RNA) sequences encoding T cell receptor (TCR) and/or immunoglobulin (IG) polypeptides, in a lymphoid DNA-containing sample from the subject TCR and/or IG sequence diversity and sequence distribution permit immunocompetence and immune repertoire assessment and reflect the degree of T cell or B cell clonality and clerical expansion in the sample. Methods for stratifying patient populations on the basis of immunocompetence including likelihood of responding to immunotherapy are also described.
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Citations
16 Claims
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1. A method for treating cancer comprising administering an effective amount of one or more immunotherapy agents to a subject in need thereof that has been identified as having a tumor comprising infiltrating lymphocytes with a high clonality rating,
wherein the clonality rating is determined by identifying and quantifying the number of unique rearranged adaptive immune receptor (AIR) sequences obtained from a sample comprising the tumor comprising infiltrating lymphocytes from the subject, and wherein the clonality rating is characterized as a high clonality rating if the combined frequency of occurrence of the observed rearranged AIR sequences is no more than 10% of the total number of rearranged AIR sequences present in the sample.
Specification