A phase II trial of oxaliplatin and trastuzumab in the treatment of HER2-positive metastatic breast cancer.
We investigated the feasibility/efficacy of oxaliplatin in combination with trastuzumab as first-/second-line treatment of HER2-positive metastatic breast cancer (MBC). Patients received oxaliplatin/trastuzumab every 21 days and were evaluated every 6 weeks using RECIST criteria. The study closed early due to slow accrual. Twenty-five patients were evaluable; of these, 5 (20%) had objective responses to oxaliplatin/trastuzumab. Therapy was well tolerated (no grade-4 and gastrointestinal grade-3 toxicity in 4% of patients), but had only modest activity (median time-to-progression 1.8 months). Substitution of oxaliplatin for cisplatin or carboplatin, in combination with trastuzumab, does not appear to improve first-/second-line therapy in HER2-positive MBC.
Yardley
Denise A
DA
Sarah Cannon Research Institute, Nashville, Tennessee 37203, USA.
Daniel
Davey
D
Stipanov
Michael
M
Drosick
D Randolph
DR
Mainwaring
Mark
M
Peyton
James
J
Shastry
Mythili
M
Hainsworth
John D
JD
D000328:Adult; D000368:Aged; D000911:Antibodies, Monoclonal / Q000008:administration & dosage / Q000627:therapeutic use* / Q000633:toxicity; D061067:Antibodies, Monoclonal, Humanized; D000970:Antineoplastic Agents / Q000008:administration & dosage / Q000627:therapeutic use* / Q000633:toxicity; D001943:Breast Neoplasms / Q000188:drug therapy* / Q000235:genetics / Q000473:pathology; D004305:Dose-Response Relationship, Drug; D004334:Drug Administration Schedule; D005260:Female; D006801:Humans; D008875:Middle Aged; D009362:Neoplasm Metastasis; D009944:Organoplatinum Compounds / Q000008:administration & dosage / Q000627:therapeutic use* / Q000633:toxicity; D000077150:Oxaliplatin; D018579:Patient Selection; D018719:Erb-b2 Receptor Tyrosine Kinases / Q000235:genetics*; D000068878:Trastuzumab; D016896:Treatment Outcome
D000911:Antibodies, Monoclonal; D061067:Antibodies, Monoclonal, Humanized; D000970:Antineoplastic Agents; D009944:Organoplatinum Compounds; D000077150:Oxaliplatin; D018719:Erb-b2 Receptor Tyrosine Kinases; D000068878:Trastuzumab; C508053:ERBB2 protein, human