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| Gene | CHEK2 |
| Variant | inact mut |
| Impact List | unknown |
| Protein Effect | loss of function |
| Gene Variant Descriptions | CHEK2 inact mut indicates that this variant results in a loss of function of the Chek2 protein. However, the specific amino acid change has not been identified. |
| Associated Drug Resistance | |
| Category Variants Paths |
CHEK2 mutant CHEK2 inact mut |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| CHEK2 mutant | breast cancer | not applicable | N/A | Guideline | Risk Factor | Germline CHEK2 mutations are associated with increased risk of developing breast cancer (NCCN.org). | detail... |
| CHEK2 mutant | prostate cancer | not applicable | N/A | Guideline | Risk Factor | Germline CHEK2 mutations are associated with increased risk of developing prostate cancer (NCCN.org). | detail... |
| CHEK2 mutant | breast cancer | no benefit | Olaparib | Case Reports/Case Series | Actionable | In a Phase II trial (TBCRC 048), Lynparza (olaparib) treatment did not result in an objective response in 7 patients with metastatic breast cancer harboring only germline mutations in CHEK2 (PMID: 33119476; NCT03344965). | 33119476 |
| CHEK2 mutant | Advanced Solid Tumor | no benefit | Olaparib | Phase II | Actionable | In a Phase II trial, Lynparza (olaparib) treatment did not demonstrate clinical activity in patients with advanced solid tumors harboring ATM (n=13) or CHEK2 (n=14) mutations (Ann Oncol (2023) 34 (suppl_2): S242; NCT03967938). | detail... |