2.2 The type of results measured
According to Response Evaluation Criteria in Solid Tumors (RECIST), the objective efficacy evaluation standard for solid tumors, it can be divided into: complete response (CR): all measurable tumor lesions disappear completely and maintain for more than 4 weeks; Partial response (PR): the sum of the products of the largest diameter and the largest perpendicular diameter of each lesion was reduced by no less than 50% and maintained for more than 4 weeks without the appearance of new lesions. Stable disease (SD): 50% decrease or more than 25% increase in the sum of the products of the largest diameter and the largest perpendicular diameter of each lesion; Progressive disease (PD): at least 25% increase in the product of the largest diameter and the largest perpendicular diameter in at least one lesion or new lesion. ORR was the primary clinical outcome. CR plus PR were combined into the data pool as ORR.