This study uses two stage group-sequential sampling design, based on current data, assumed the CIPN incidence rate is 50% in placebo arm, while 20% in PerOx Quench arm（60% reduction）, set a=0.05，80％ power, random allocation ratio is 1:1, obtained the subjects number is 41（total 82) by PASS 11 software for superior design; considering 10% drop out rate, final number of subjects totally is 90.
