Blood test may spot lung cancer before scans in High-Risk smokers

NCT ID NCT02500693

First seen Apr 08, 2026 · Last updated May 15, 2026 · Updated 6 times

Summary

This study looked at whether a simple blood test for circulating tumor cells (CTCs) can help detect lung cancer earlier in people at very high risk—smokers and ex-smokers over 55 with COPD. Researchers combined the blood test with low-dose CT scans over three yearly screenings. The goal was to see if CTCs could reduce false alarms and catch cancers sooner than scans alone.

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Contacts and locations

Locations

  • CH de Roubaix

    Roubaix, France

  • CHRU de Lille

    Lille, France

  • CHU d'Amiens

    Amiens, France

  • CHU de Dijon

    Dijon, France

  • CHU de Grenoble

    Grenoble, France

  • CHU de Montpellier

    Montpellier, France

  • CHU de Nancy

    Nancy, France

  • CHU de Reims

    Reims, France

  • CHU de Rennes

    Rennes, France

  • CHU de Rouen

    Rouen, France

  • CHU de Saint Etienne

    Saint-Etienne, France

  • CHU de Strasbourg

    Strasbourg, France

  • CHU de Toulouse

    Toulouse, France

  • CHU de Tours

    Tours, France

  • Hospices Civils de Lyon

    Lyon, France

  • Hôpital Bichat

    Paris, France

  • Hôpital Cochin

    Paris, France

  • Hôpital Européen Georges Pompidou

    Paris, France

  • Hôpital Nord

    Marseille, France

  • Hôpital TENON

    Paris, France

Conditions

Explore the condition pages connected to this study.