NCI Drug Dictionary

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The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.

A purified, natural saponin isolated from the soapbark tree Quillaja saponaria Molina with potential immunoadjuvant activity. When co-administered with vaccine peptides, QS21 may increase total antitumoral vaccine-specific antibody responses and cytotoxic T-cell responses. Check for active clinical trials using this agent. (NCI Thesaurus)
Synonyms:QS-21 Adjuvant
Stimulon QS-21 Adjuvant
Code names:NIAID VEU 016