RECIST (Response Evaluation Criteria In Solid Tumors)

RECIST, or Response Evaluation Criteria In Solid Tumors, is a standardized method used in clinical trials to assess how well cancer treatments are working. It involves measuring the size of tumors using imaging techniques like CT scans or MRIs before and after treatment. A doctor evaluates changes in the tumors' sizes to categorize the treatment response as a complete response (tumors shrink or disappear), partial response (tumors shrink), stable disease (no significant change), or progression (tumors grow). This helps researchers and doctors determine the effectiveness of new cancer therapies.