Trial of early cancer detection test misses primary endpoint

CHICAGO — The first randomized trial to evaluate whether a multicancer early detection test using a blood sample could result in diagnosis at earlier stages yielded mixed results.
The NHS-Galleri trial did not meet its primary endpoint, failing to show a reduction in combined stage III/stage IV diagnoses of 12 prespecified cancer types.
However, analyses of secondary endpoints showed a reduction in stage IV cancers alone and increased detection of stage I/stage II cancers among trial participants screened with the multicancer early detection (MCED) test annually for 3 years compared with those



