RNS earlier says 10-15% of patients CtDna testing by another20 Apr 2026 18:58
Method (does not say what is was) is uninformative. The existing study at The Royal Marsden uses GUARDIANT HEALTH. A simple search using A.I. tells us
"The Royal Marsden NHS Foundation Trust utilizes the Marsden360 liquid biopsy service, in partnership with Guardant Health, to perform molecular testing of circulating tumor DNA (ctDNA) from blood in patients with advanced (stage 3 and 4) non-small cell lung cancer (NSCLC). This service helps identify actionable mutations to guide treatment decisions.".
==============
So The Royal Marsden clearly thinks the molecular analysis of circulating tumor cells (CTC's) may provide the information that the Marsden360 liquid biopsy service, in partnership with Guardant Health is not able to (for the 10 to 15% of patients). This reminds me of the recent RNS from Grail (which sent their sp down 50% or so) which seems to suggest CtDna analysis simply cannot provide the full picture. Interesting that Myriad Genetics are already collaborating with Cellbxhealth in a similar way. Conceivably we could get a stonking RNS to say Myriad want to use our Parsortix system to catch the CTC' s for their advanced molecular analysis.
We now have both The Royal Marsden AND Myriad Cenetics looking into this. Maybe Grail have missed the boat??
All IMHO.