A benchmarking project was conducted at six cancer centers to evaluate
the use of the 5-HT3-receptor antagonists granisetron HCl and ondanse
tron HCl to prevent chemotherapy-induced nausea and vomiting. Some 773
chemotherapy episodes involving use of a 5-HT3-receptor antagonist as
antimetic therapy were randomly selected from among the chemotherapy
episodes administered at the centers during a 10-month period. No sign
ificant differences were found in clinical responses between granisetr
on and ondansetron after controlling for population differences (P > 0
.05). Opportunities for clinical improvement were identified, includin
g transition from intravenous to oral 5-HT3-receptor antagonists for e
ligible patients, concomitant use of dexamethasone, and use of convent
ional antiemetics versus 5-HT3-receptor antagonists for chemotherapy o
f low emetogenic potential and take-home use.