NBTX vs CSTL Comparison

Nanobiotix SA is a clinical-stage biotechnology company that has one operating segment, which focuses on developing product candidates that use its proprietary nanotechnology to transform cancer treatment by increasing the efficacy of radiotherapy. The company develops NanoXray products to help patients receiving radiotherapy by magnifying the effect of radiotherapy within tumor cells without increasing the dose to surrounding healthy tissues. Its product candidate is NBTXR3, a preclinical research program for cancer immunotherapies.

Castle Biosciences Inc is a molecular diagnostics company. The group provides test solutions for the diagnosis and treatment of dermatologic cancers, Barrett's esophagus (BE), and uveal melanoma. The product portfolio of the company includes DecisionDx-Melanoma, a risk stratification gene expression profile (GEP) test; DecisionDx-SCC, a risk stratification test for cutaneous squamous cell carcinoma; MyPath Melanoma, a diagnostic GEP test for use in patients with difficult-to-diagnose melanocytic lesions; and TissueCypher, a test to predict future development of progression of high-grade dysplasia and/or esophageal cancer. It also provides DecisionDx-UM, a risk stratification GEP test. The company also offers its products to the skin cancer and gastroenterology markets.