Core Insights - Castle Biosciences has signed a definitive agreement to acquire Capsulomics, Inc., also known as Previse, which focuses on gastrointestinal health, particularly chronic acid reflux diseases and esophageal cancer [2][3] - The acquisition aims to enhance Castle's existing gastroenterology franchise by integrating Previse's methylation technology and other developmental technologies, thereby expanding its testing options [3][4] - The transaction is expected to close in the coming weeks, pending customary closing conditions [3] Company Overview - Castle Biosciences is a diagnostics company listed on Nasdaq (CSTL) that develops innovative tests to guide patient care and improve health outcomes [5] - The company's current portfolio includes tests for skin cancers, Barrett's esophagus, mental health conditions, and uveal melanoma, with ongoing research in other high clinical need areas [6] Previse Overview - Previse, established in 2018, specializes in gastrointestinal health and aims to improve patient outcomes through early detection and prevention of diseases like esophageal cancer [4] - The company utilizes advanced biomarker technology developed at Johns Hopkins University, which is exclusively licensed to Previse, to support its mission [4]