25. Eisenhauer EA, Therasse P, Bogaerts J, Schwartz LH, Sargent D, Ford R, Dancey J, Arbuck S, Gwyther S, Mooney M et al: New response evaluation criteria in solid tumours: revised RECIST guideline (version 1.1). Eur J Cancer 2009, 45(2):228-247. 86 Abbreviated Title: Neoadjuvant IO for HNSCC Version Date: August 31, 2022 APPENDIX A: -PERFORMANCE STATUS CRITERIA ECOG Performance Status Scale Karnofsky Performance Scale Grade Descriptions Percent Description 100Normal, no complaints, no evidence of disease. 0Normal activity.