Sentry Study: Raman Spectroscopy on Ex Vivo Lungs

Not Applicable

Terminated

Brief Summary: In this proof-of-concept, ex vivo study, the study team will investigate whether Raman spectroscopy technology is a good candidate for the identification of cancerous lung tissue.

Detailed Description: Lung cancer is the most prevalent form of cancer worldwide and the leading cause of cancer-related deaths. Despite recent advances in treatment, the five-year survival rate remains below 25% \[State of Lung Cancer Report 2021,American Lung Association. This is largely due to the fact that most patients are diagnosed only at advanced stages of the disease when treatments are ineffective and the prognosis is poor. The National Lung Screening Trial demonstrated the utility of lung cancer screening by low-dose computed tomography (CT) to improve early detection\\ and reduce lung cancer-related mortality by 20%. Earlier detection of lung lesions in turn created an increased need for better early diagnosis modalities.

Reveal Surgical is developing medical devices for tissue characterization based on Raman spectroscopy technology.

In this proof-of-concept, ex vivo study, the study team will investigate whether Raman spectroscopy technology is a good candidate for the identification of cancerous lung tissue.

Recruitment & Eligibility

Inclusion Criteria

Exclusion Criteria

Suspected or confirmed diagnosis of mucinous adenocarcinoma of the lung
Undergoing neoadjuvant therapy. (This exclusion criterion is intended to minimize confounding optical signals such as fluorescence or near-infrared Raman signals that could arise from the presence of chromophores derived from neoadjuvant medication.)
Previously diagnosed with cystic fibrosis or other lung disease, with the exception of Chronic Obstructive Pulmonary Disease (COPD) and ILD (Interstitial Lung Disease), i.e., patients with COPD or ILD will not be excluded from the study.
Tumor size below 1cm3
Resected lobe does not allow Surgical Pathology team to section two study specimens of minimal size 1.5cm × 1.5cm. In this case the patient will be found ineligible after consent.

Arm && Interventions

Group	Intervention	Description
Raman Spectroscopy	Sentry System	Acquiring Raman spectroscopy data points ex vivo on recently excised lung tissue

Primary Outcome Measures

Name	Time	Method
investigate the variability of the Raman spectra using data points ex vivo on recently excised lung tissue, with at least one third of spectra labeled as normal and cancerous based on subsequent histopathology assessment.	1 year	whether ex vivo cancerous and normal human lung tissue yield distinct Raman signatures.

Secondary Outcome Measures

Name	Time	Method

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