Cavitation of target and nontarget lesions is common in NSCLC patients treated with VEGFRIs and platinum-based chemotherapy. Impact on response and time to event outcomes occurred but seems to be less common. Response assessment might be improved by incorporating cavitation into volume assessment for target lesions, potentially altering outcomes of key efficacy parameters in clinical trials. This should be prospectively assessed in clinical trials of angiogenesis inhibitors.
Percentage changes in SMRP levels, but not changes in OP levels, are a potentially useful marker of disease course. These findings should be validated prospectively for a role as an objective adjunctive measure of disease course in both clinical trials and clinical practice.
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