Results from a prospective clinical trial showed that a blood test looking at specific biomarkers was able to detect recurrences of lung cancer an average of six months before conventional imaging methods found evidence of recurrence. In the largest prospective clinical trial to date of circulating tumor cells (CTC) as biomarkers for locally advanced lung cancer, the findings indicate that blood tests potentially can be used in conjunction with CT and PET/CT scans to guide personalized treatment planning for patients with non-small cell lung cancer (NSCLC). The study will be presented today at the 2017 Multidisciplinary Thoracic Cancers Symposium. [read more here}