Blood test may improve cancer care for colorectal and lung cancer patients
NCT ID NCT04258137
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study is testing whether regular blood tests that look for tumor DNA (called liquid biopsy) can help doctors make better treatment decisions for people with advanced colorectal or lung cancer. About 332 participants will be randomly assigned to either receive standard imaging follow-up or imaging plus liquid biopsy. The goal is to see if the extra blood test information leads to longer survival.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
liquid biopsy (ctDNA)
What this could lead to
If successful, this could show that regular ctDNA testing helps doctors choose better treatments and monitor cancer more accurately, potentially improving survival.
What could go wrong
This is a phase 2 trial with a small number of participants, so results may not apply to all patients. The benefit of ctDNA over standard imaging is not yet proven.
Disclaimer
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
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Contact
Email: •••••@•••••
Locations
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CHRU Brest
RECRUITINGBrest, 29200, France
Contact Email: •••••@•••••
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Centre hospitalier de la Côte Basque
RECRUITINGBayonne, 64109, France
Contact Email: •••••@•••••
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Clinique Tivoli-Ducos
RECRUITINGBordeaux, 33000, France
Contact Email: •••••@•••••
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Institut Bergonie
RECRUITINGBordeaux, 33076, France
Contact Email: •••••@•••••
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Polyclinique Bordeaux Nord Aquitaine
RECRUITINGBordeaux, 33077, France
Contact Email: •••••@•••••
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Polyclinique Marzet
RECRUITINGPau, 64000, France
Contact Email: •••••@•••••
Contact