国信证券：肿瘤基因检测行业处于发展快车道 应用场景规模有望呈数倍扩大

Group 1 - The tumor gene testing industry is experiencing rapid development, with significant international transactions and domestic regulatory reforms since Q4 2025 [1] - Leading U.S. tumor gene testing companies have shown strong stock price growth, with Natera, Exact Science, Guardant, and Grail achieving annual stock price increases of 52%, 78%, 221%, and 464% respectively [1] - The tumor gene testing sector maintains high growth potential, covering early screening, auxiliary diagnosis, companion diagnosis, efficacy monitoring, and recurrence prediction in precision treatment [1] Group 2 - Exact Sciences is a leading company in colorectal cancer screening, with a revenue guidance of $3.22 to $3.235 billion for 2025, representing a growth of 16.7% to 17.2% [2] - The accessible market for colorectal cancer screening in the U.S. is approximately 120 million individuals aged 45-85, with about 70 million already screened [2] - Future growth drivers for Exact Sciences include rescreening, addressing care gaps, pricing increases for Cologuard Plus, targeting younger demographics, and a strong commercialization strategy [2] Group 3 - Natera is a leader in minimal residual disease (MRD) testing, with projected revenue of approximately $2.3 billion for 2025 [3] - The core MRD product, Signatera, achieved over 200,000 samples in Q3 2025, marking a 54% year-over-year increase [3] - Natera's Signatera is one of the most scientifically validated MRD testing products, supported by over 125 peer-reviewed publications across more than 30 tumor types [3] Group 4 - The tumor gene testing industry is in a growth phase, with significant international transactions and domestic regulatory innovations [4] - Key domestic players include Adicon Biotech, which presented innovative lung cancer MRD products, and BGI Genomics, which is expanding into various cancer early screening and monitoring scenarios [4] - Mirxes-B launched China's first early screening product for gastric cancer, while Burning Rock Medical's Lungwei has achieved excellent results in multiple cancer MRD clinical trials [4]