Thread by @cecilejanssens

Study finds a new test that can check if a breast tumor was effectively removed:

"Its test ... was up to 100 times more sensitive than other similar liquid-biopsy tests in picking up DNA shed by breast cancer cells into the blood."

Wow!
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h/t @pash22
bit.ly/2GUxSe0?utm_so…

"After neoadjuvant therapy, ctDNA concentrations were lower in patients who achieved pathological complete response compared to patients with residual disease (... AUC = 0.83)."
"These results demonstrate high accuracy for assessment of ... residual disease"

Wow!
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Here is the accompanying ROC plot. A reminder that the study was conducted in only 33 patients.

--> waaayyyyyy more research is needed ... in larger sample size too show that this test shows presents a smooty ROC curve with similar AUC. Based on this graph: no guarantee.
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