Biodesix, Inc. (NASDAQ: BDSX) shares fell Friday. The Louisville, Colo-based company, a leading diagnostics solutions concern, announced the publication of the largest lung nodule biomarker clinical validation study ever conducted. This milestone strengthens the clinical foundation for Nodify CDT® tests as a critical decision-support tool in the early detection of lung cancer, addressing a significant unmet need in the management of the millions of lung nodules detected annually in the United States.
The study, published in Future Oncology, February 2026, titled Validation of a blood-based autoantibody test to assess lung cancer risk in 4-30mm pulmonary nodules: a retrospective pooled analysis of four cohort studies, highlights that the Nodify CDT® test offers consistently strong performance in identifying a high risk of lung cancer in patients with lung nodules.
Over 1,100 patients with noncalcified lung nodules ranging in size from 4-30 mm and had Nodify CDT test results were analyzed. The data shows that the Nodify CDT test consistently demonstrated high specificity (91-97%), i.e., low false positive rates, regardless of nodule size or baseline patient risk factors. Test performance was also consistent across four distinct clinical studies with patients enrolled from 48 clinical practices in the US, including the CLARIFY study (NCT06728319) where patients received the Nodify CDT test as part of real-world clinical care.
BDSX shares ditched 47 cents, or 2.9%, to $15.83.
