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phase I/II trial
Pronunciation
Definition 1
A trial to study the safety, dosage levels, and response to a new treatment. (NCI Dictionary)
Definition 2
A clinical research protocol designed to study the safety, dosage levels and response to new treatment. Phase I/II trials combine a Phase I and a Phase II trial of the same treatment into a single protocol. (NCI Thesaurus)
Definition 3
A class of clinical study that combines elements characteristic of traditional Phase I and Phase II trials. See also Phase I, Phase II. (NCI Thesaurus/CDISC)
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