How is a complete response defined in RECIST 1.1?

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Multiple Choice

How is a complete response defined in RECIST 1.1?

Explanation:
RECIST 1.1 defines a complete response as the disappearance of all target lesions, with no new lesions appearing. This is the strict criterion for CR, meaning there is no radiographic evidence of disease in the tracked target sites. The other scenarios describe different response categories: a substantial shrinkage qualifies as partial response, a new lesion or a significant increase in lesion size qualifies as progression, and no meaningful change qualifies as stable disease.

RECIST 1.1 defines a complete response as the disappearance of all target lesions, with no new lesions appearing. This is the strict criterion for CR, meaning there is no radiographic evidence of disease in the tracked target sites. The other scenarios describe different response categories: a substantial shrinkage qualifies as partial response, a new lesion or a significant increase in lesion size qualifies as progression, and no meaningful change qualifies as stable disease.

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