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AI-assisted breast-cancer screening may reduce unnecessary testing

Using artificial intelligence (AI) to supplement radiologists’ evaluations of mammograms may improve breast-cancer screening by reducing false positives without missing cases of cancer, according to a study by researchers at Washington University School of Medicine in St. Louis and Whiterabbit.ai, a Silicon Valley-based technology startup. The researchers developed an algorithm that identified normal mammograms with very high sensitivity. They then ran a simulation on patient data to see what would have happened if all of the very low-risk mammograms had been taken off radiologists’ plates, freeing the doctors to concentrate on the more questionable scans. The simulation revealed that fewer people would have been called back for additional testing but that the same number of cancer cases would have been detected. “False positives are when you call a patient back for additional testing, and it turns out to be benign,”… 

Roche obtains CE Mark for first companion diagnostic to identify patients with HER2-low metastatic breast cancer eligible for ENHERTU

Roche (SIX: RO, ROG; OTCQX: RHHBY) announced today the approval of the CE Mark for the VENTANA® HER2 (4B5) Rabbit Monoclonal Primary Antibody RxDx* to identify metastatic breast cancer patients with low HER2 expression for whom ENHERTU® (trastuzumab deruxtecan) may be considered as a targeted treatment. The test, which is branded PATHWAY in the United States, received US Food and Drug Administration (FDA) approval in October 2022. ENHERTU is a specifically engineered HER2-directed antibody drug conjugate (ADC) being jointly developed and commercialised by Daiichi Sankyo and AstraZeneca. HER2 is a receptor protein that helps cancer cells grow quickly. To determine a patient’s HER2 status, pathologists evaluate, or score, the level of HER2 protein expressed in breast cancer tissue samples. If a patient’s tumour expresses high levels of HER2, the patient is identified as HER2-positive and may be considered for HER2-targeted treatment. However,…