Recurrent Pharyngeal Cancer Clinical Trial
The aim of this study is the safety and efficacy of cryosurgery plus NK immunotherapy to recurrent pharyngeal cancer.
By enrolling patients with recurrent pharyngeal cancer adapted to enrolled criteria, this
study will document for the first time the safety and the short and long term efficacy of the
combined therapy using cryosurgery and natural killer (NK) cells.
The safety will be evaluated by statistics of adverse reactions. The efficacy will be
evaluated according to local relief degree, progress free survival (PFS) and overall survival
(OS).
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