Monograph
Galleri — Multi-Cancer Early Detection
Galleri is a blood test developed by GRAIL (now an independent public company after spin-off from Illumina) that detects cell-free DNA shed by cancer into the circulation. Using methylation pattern analysis on a panel of ~100,000 genomic sites,…
By Kristopher Crawford
·
30 May 2026
·
5 min read
Galleri is a blood test developed by GRAIL (now an independent public company after spin-off from Illumina) that detects cell-free DNA shed by cancer into the circulation. Using methylation pattern analysis on a panel of ~100,000 genomic sites,…
In the full monograph
- What it is, and how it works
- What the evidence shows — randomized trials, observational data, animal studies, graded and cited
- Dose, form, and timing
- What to expect, and how soon
- Who should be careful, and what to check first
- The verdict
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