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| Gene | B2M |
| Variant | del |
| Impact List | deletion |
| Protein Effect | loss of function |
| Gene Variant Descriptions | B2M del indicates a deletion of the B2M gene. |
| Associated Drug Resistance | |
| Category Variants Paths |
B2M mutant B2M inact mut B2M del |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| B2M del | melanoma | resistant | GVAX + unspecified PD-1 antibody | Preclinical | Actionable | In a preclinical study, GVAX in combination with an anti-PD1 treatment did not inhibit tumor growth or increase survival in a syngeneic mouse model of melanoma harboring B2M deletion (PMID: 30559380). | 30559380 |