Oxaliplatin for the treatment of ovarian cancer

Introduction: Oxaliplatin is an important drug in treatment of several solid tumors. Ovarian cancer (OC) is sensitive to chemotherapy and the overall response rate with primary therapy is about 75%. Unfortunately, 60 - 70% of patients experience recurrence requiring additional treatments and finally die of progressive disease within 5 years of the initial diagnosis. Currently, a platinum-based combination therapy is recommended in platinum-sensitive disease while a non-platinum single-agent therapy is preferred in platinum-resistant disease that is characterized by a low response rate. Areas covered: In this article, the authors review the Phase II and Phase III studies of oxaliplatin as an OC therapy. Furthermore, the authors discuss the pharmacokinetic and pharmacodynamic features of oxaliplatin. Expert opinion: Platinum emerged as the mainstay of OC treatment in frontline therapy, and platinum compounds remain a critical component of chemotherapy also in relapsed disease. Unfortunately, increasing exposure to carboplatin/cisplatin raises the risk of resistance or hypersensitivity to platinum. Several studies have demonstrated the safety and effectiveness of oxaliplatin, both alone and in combination regimens, in relapsed OC, demonstrating a good tolerability profile. Moreover, the therapeutic spectrum of oxaliplatin might be extended to OC patients who experienced hypersensitivity to carboplatin because of its favorable toxicity profile and at least equal efficacy.