In this NCDB study, pCR was a predictor of survival. Though chemoradiation rather than chemotherapy alone was a predictor of pCR, it was not a predictor of survival. Further studies are needed to elucidate the role of radiation in the neoadjuvant setting and to discern the impact of pCR on survival.
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Kaltenmeier et al. (2020) studied this question.
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