{"id":959073,"date":"2023-08-08T13:47:03","date_gmt":"2023-08-08T20:47:03","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/?post_type=msr-research-item&#038;p=959073"},"modified":"2025-10-31T13:48:43","modified_gmt":"2025-10-31T20:48:43","slug":"scaling-clinical-trial-matching-using-large-language-models-a-case-study-in-oncology","status":"publish","type":"msr-research-item","link":"https:\/\/www.microsoft.com\/en-us\/research\/publication\/scaling-clinical-trial-matching-using-large-language-models-a-case-study-in-oncology\/","title":{"rendered":"Scaling Clinical Trial Matching Using Large Language Models: A Case Study in Oncology"},"content":{"rendered":"<p>Clinical trial matching is a key process in health delivery and discovery. In practice, it is plagued by overwhelming unstructured data and unscalable manual processing. In this paper, we conduct a systematic study on scaling clinical trial matching using large language models (LLMs), with oncology as the focus area. Our study is grounded in a clinical trial matching system currently in test deployment at a large U.S. health network. Initial findings are promising: out of box, cutting-edge LLMs, such as GPT-4, can already structure elaborate eligibility criteria of clinical trials and extract complex matching logic (e.g., nested AND\/OR\/NOT). While still far from perfect, LLMs substantially outperform prior strong baselines and may serve as a preliminary solution to help triage patient-trial candidates with humans in the loop. Our study also reveals a few significant growth areas for applying LLMs to end-to-end clinical trial matching, such as context limitation and accuracy, especially in structuring patient information from longitudinal medical records.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Clinical trial matching is a key process in health delivery and discovery. In practice, it is plagued by overwhelming unstructured data and unscalable manual processing. In this paper, we conduct a systematic study on scaling clinical trial matching using large language models (LLMs), with oncology as the focus area. Our study is grounded in a 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