Cancer Detection Test Fails in Major Study

In a significant setback, the blood screening test by Grail, called Galleri, which aims at early cancer detection, did not show a notable reduction in the diagnosing of cancers at late stages. The trial, involving 142,000 adults aged 50-77 in Britain, revealed that the test participants did not exhibit a significant decrease in Stage 3 or Stage 4 cancer diagnoses compared to those who did not undergo the screening.