title: Effectiveness of a single-day three-drug regimen of dexamethasone, palonosetron, and aprepitant for the prevention of acute and delayed nausea and vomiting caused by moderately emetogenic chemotherapy.
abstract: OBJECTIVE
  Chemotherapy-induced nausea and vomiting includes both Acute (0-24 h) and Delayed (24-120 h) components with different physiologic mechanisms. A combination of a serotonin antagonist, a corticosteroid, and an NK-1 antagonist has proven effective against this problem. However, standard antiemetic regimens require administration over 3-4 days after chemotherapy. The present study evaluated a more convenient single-day three-drug antiemetic regimen for patients receiving moderately emetogenic chemotherapy.
  
  
  METHODS
  Chemotherapy-naïve patients with solid tumors receiving cyclophosphamide and/or doxorubicin were eligible. Patients could not have pre-existing etiologies for vomiting. Prior to chemotherapy, patients received a single dose of aprepitant 285 mg p.o., dexamethasone 20 mg p.o., and palonosetron 0.25 mg i.v. A daily patient diary recording episodes of emesis and severity of nausea was then kept for 5 days. Any further antiemetics were considered rescue medication.
  
  
  RESULTS
  Forty-one eligible and evaluable patients (40 women, one man) with breast cancer were entered on study. Most were receiving adjuvant chemotherapy. Complete Response (no vomiting, no rescue medication) was seen in 51% of patients, including 76% with Complete Response for the Acute period and 66% for the Delayed period. No emesis was reported for 100% of patients in the Acute period and 95% in the Delayed period. No Nausea was seen in 32% of patients. No untoward toxicities were seen.
  
  
  CONCLUSIONS
  A single-day three-drug antiemetic regimen is feasible and effective for protection against both Acute and Delayed vomiting after moderately emetogenic chemotherapy. Formal comparison to a standard multi-day antiemetic regimen is warranted.
authors.affiliation: Division of Hematology/Oncology, Vermont Cancer Center, 89 Beaumont Avenue-Given Bldg E214, Burlington, VT 05405, USA. Steven.Grunberg@uvm.edu
authors.forename: Steven M
authors.initials: SM
authors.lastname: Grunberg
authors.forename: Matthew
authors.initials: M
authors.lastname: Dugan
authors.forename: Hyman
authors.initials: H
authors.lastname: Muss
authors.forename: Marie
authors.initials: M
authors.lastname: Wood
authors.forename: Susan
authors.initials: S
authors.lastname: Burdette-Radoux
authors.forename: Tracey
authors.initials: T
authors.lastname: Weisberg
authors.forename: Marisa
authors.initials: M
authors.lastname: Siebel
mesh_terms: D000328:Adult; D000368:Aged; D000932:Antiemetics / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D000970:Antineoplastic Agents / Q000009:adverse effects* / Q000627:therapeutic use; D000077608:Aprepitant; D001943:Breast Neoplasms / Q000188:drug therapy; D018567:Breast Neoplasms, Male / Q000188:drug therapy; D017024:Chemotherapy, Adjuvant / Q000009:adverse effects; D003520:Cyclophosphamide / Q000009:adverse effects / Q000627:therapeutic use; D003907:Dexamethasone / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use; D004317:Doxorubicin / Q000009:adverse effects / Q000627:therapeutic use; D004334:Drug Administration Schedule; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D007546:Isoquinolines / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D009025:Morpholines / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use; D009325:Nausea / Q000139:chemically induced / Q000517:prevention & control*; D000077924:Palonosetron; D011812:Quinuclidines / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use; D013997:Time Factors; D014839:Vomiting / Q000139:chemically induced / Q000517:prevention & control*
chemical_list: D000932:Antiemetics; D000970:Antineoplastic Agents; D007546:Isoquinolines; D009025:Morpholines; D011812:Quinuclidines; D000077608:Aprepitant; D000077924:Palonosetron; D003907:Dexamethasone; D004317:Doxorubicin; D003520:Cyclophosphamide