The American Society for Clinical Oncology’s (ASCO) virtual annual meeting began June 3 with the release of late-breaking abstracts, including LBA-1 on “Olympia: A phase 3, multicenter, randomized, placebo-controlled trial of adjuvant?olaparib?after (neo)adjuvant chemotherapy in patients with germline BRCA1 and BRCA2 mutations and high risk HER2-negative primary breast cancer.”
Beigene Ltd.’s PARP inhibitor, pamiparib, won conditional approval from China’s National Medical Products Administration for treating patients with germline BRCA mutation-associated recurrent advanced ovarian, fallopian tube or primary peritoneal cancer who have been treated with two or more lines of chemotherapy.
The discovery of synthetic lethality between BRCA mutations and PARP inhibitors ranks has led to major advances in the treatment of BRCA-mutated cancers. Mutations in BRCA1 and BRCA2 can leave cells with a deficiency in homologous repair (HR). And that deficiency can make them vulnerable to PARP inhibitors, which block alternate DNA repair pathways, as well as platinum-based treatment, which induces DNA mutations that BRCA-deficient cells are unable to cope with.
The discovery of synthetic lethality between BRCA mutations and PARP inhibitors ranks has led to major advances in the treatment of BRCA-mutated cancers.
The FDA has granted de novo approval to 23andme Inc. for its report on BRCA1 and BRCA2 risk for developing breast, prostate or ovarian cancer. The direct-to-consumer (DTC) saliva test can provide insight on three genetic mutations linked to the cancers, most commonly found in patients of Eastern European, or Ashkenazi Jewish heritage, which account for a relatively small portion of patients. There are more than 1,000 mutations of the BRCA gene, and the test is not intended to diagnose or rule out the presence of mutation, or increased risk of the particular cancers due to other factors.
