Result: These 20 variants did not include the immune escape variant
sG145R, detected in relatively high frequencies at pre-treatment, but otherwise included the variants
sS167L,
sW172C, and
sW172*, located at the minimal recognized sequence (positions
s165 to
s172) of the TH-
s156/
s175 epitope; among these,
sS167L showed a continuous percentage increase from pre-treatment to ETV-VBK (sample 4A: 0.2%, 4B: 0.7%, 4C: 1.1%, 4D: 1.3%, 4E: 4%).