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| Gene | RAD51B |
| Variant | del |
| Impact List | deletion |
| Protein Effect | loss of function |
| Gene Variant Descriptions | RAD51B del indicates a deletion of the RAD51B gene. |
| Associated Drug Resistance | |
| Category Variants Paths |
RAD51B mutant RAD51B inact mut RAD51B del |
| Molecular Profile | Indication/Tumor Type | Response Type | Therapy Name | Approval Status | Evidence Type | Efficacy Evidence | References |
|---|---|---|---|---|---|---|---|
| RAD51B del | uterus leiomyosarcoma | predicted - sensitive | Olaparib + Temozolomide | Case Reports/Case Series | Actionable | In a clinical case study, Lynparza (olaparib) and Temodar (temozolomide) combination treatment resulted in stable disease and progression-free survival lasting 980 days in a patient with advanced uterine leiomyosarcoma harboring a homozygous deletion of RAD51B (PMID: 37467452). | 37467452 |
| RAD51B del | ovarian cancer | predicted - sensitive | unspecified PARP inhibitor | Case Reports/Case Series | Actionable | In a clinical study, PARP inhibitor monotherapy (niraparib (n=1), olaparib (n=5) or rucaparib), resulted in a median progression-free survival (PFS) of 25.4 mo and an overall survival (OS) of 51.8 mo in ovariant patients with homozygous deletion of homologous recombination repair (HRR) genes (n=8), including RAD51B (n=1), compared to a median PFS of 4.9 mo and OS of 18.5 mo in patients without HRR gene alterations (n=198) (PMID: 42133897). | 42133897 |