title: Phase I/II trial of granisetron: a novel 5-hydroxytryptamine antagonist for the prevention of chemotherapy-induced nausea and vomiting.
abstract: A new class of antiemetic agents, the 5-hydroxytryptamine (5-HT3) antagonists, have been shown to possess potent antiemetic properties in the ferret model. We conducted a phase I/II trial of the 5-HT3 antagonist BRL43694 (granisetron) in 24 chemotherapy-naïve patients who were receiving any combination of doxorubicin and/or cisplatin. The first 12 patients received 40 micrograms/kg and the second 12 received 80 micrograms/kg of granisetron intravenously before beginning chemotherapy. Nausea was assessed by a patient-completed visual analogue scale and episodes of retching recorded by the patient and an independent observer. Fifty-two percent of the 22 evaluable patients had no retching or vomiting and 32% had no nausea during the first 24 hours after chemotherapy. Pharmacokinetic measurements were performed. The disposition of granisetron was best described using a two-compartment model. The area under the plasma concentration curve (AUC) was 277 +/- 226 ng.h/mL and 359 +/- 282 ng.h/mL at 40 and 80 micrograms/kg, respectively. The total body clearance was 0.319 +/- 0.315 L/kg/hr and 0.483 +/- 0.504 L/kg/hr at the 40 and 80 micrograms/kg doses. Wide interpatient variation in model independent parameters was observed. There was no suggestion of dose-dependent efficacy at the two dose levels studied. We conclude that granisetron shows promise as a well-tolerated and effective antiemetic. Randomized trials comparing this drug with standard regimens are currently underway.
authors: Department of Medicine, Princess Margaret Hospital, Toronto, Canada.
authors: M
authors: M
authors: Addelman
authors: C
authors: C
authors: Erlichman
authors: S
authors: S
authors: Fine
authors: D
authors: D
authors: Warr
authors: C
authors: C
authors: Murray
mesh_terms: D000932:Antiemetics / Q000097:blood / Q000493:pharmacokinetics / Q000627:therapeutic use*; D000970:Antineoplastic Agents / Q000009:adverse effects*; D001219:Aspartate Aminotransferases / Q000097:blood; D002851:Chromatography, High Pressure Liquid; D002945:Cisplatin / Q000008:administration & dosage / Q000009:adverse effects; D004317:Doxorubicin / Q000008:administration & dosage / Q000009:adverse effects; D004341:Drug Evaluation; D004361:Drug Tolerance; D017829:Granisetron; D006801:Humans; D007191:Indazoles / Q000097:blood / Q000493:pharmacokinetics / Q000627:therapeutic use*; D009325:Nausea / Q000139:chemically induced / Q000517:prevention & control*; D011720:Pyrazoles / Q000627:therapeutic use*; D012702:Serotonin Antagonists / Q000097:blood / Q000493:pharmacokinetics / Q000627:therapeutic use*; D014839:Vomiting / Q000139:chemically induced / Q000517:prevention & control*
chemical_list: D000932:Antiemetics; D000970:Antineoplastic Agents; D001219:Aspartate Aminotransferases; D002945:Cisplatin; D004317:Doxorubicin; D017829:Granisetron; D007191:Indazoles; D011720:Pyrazoles; D012702:Serotonin Antagonists