A Randomized Study of Safety and Efficacy of Pazopanib and Gemcitabine in Persistent or Relapsed Ovarian Cancer

A Randomized Study of Safety and Efficacy of Pazopanib and Gemcitabine in Persistent or Relapsed Ovarian Cancer

A Randomized Open Label Phase II Study of Weekly Gemcitabine Plus Pazopanib Versus Weekly Gemcitabine Alone in the Treatment of Patients With Persistent or Relapsed Epithelial Ovarian, Fallopian Tube or Primary Peritoneal Carcinoma

Ovarian cancer is the leading cause of gynecologic cancer deaths, and the fifth most common cause of cancer deaths in women. While approximately 75% of patients with epithelial ovarian cancer will respond to first-line chemotherapy with platinum and paclitaxel, most patients with advanced stage epithelial ovarian cancer will experience disease recurrence. Pazopanib is a novel agent has recently been approved for the treatment of subjects with advanced renal cell carcinoma (RCC), and preclinical studies suggest it may be effective in other cancers such as ovarian cancer. Therefore, the purpose of this study is to test the efficacy and safety of a novel agent, pazopanib, as an adjunct to a standard treatment, gemcitabine, for recurrent or persistent ovarian cancer. This is an open label study in which subjects will be randomized 1:1 to receive 4 cycles of either gemcitabine, or gemcitabine with pazopanib. Gemcitabine will be administered as an IV infusion weekly on days 1 and 8 of a 21 day cycle. Subjects randomized to receive pazopanib will take 800 mg daily during the 21 day cycle. All subjects will be monitored for toxicity and other indicators of safety (labs, physical exams, vitals) at intervals throughout the treatment cycles. Subjects will be followed for up to 5 years following the conclusion of treatment to evaluate efficacy. The primary endpoints of the study are progression free survival and overall survival, which will be assessed at three years.

Patients will receive gemcitabine 1000 mg/m2 administered weekly on days 1 and 8 (30 minutes IV infusion) of each cycle for up to 6 cycles. Each cycle is 21 days.

Progression-Free Survival (PFS) is defined as the duration of time from study entry to time of recurrence/progression or death from any cause, whichever occurs first.

Adverse events will be evaluated using CTCAE criteria from the start of study treatment until 30 days following the last dose of study treatment

Inclusion Criteria: Must be at least 18 years old Must have measurable or detectable ovarian, fallopian or primary peritoneal cancer Must have been treated previously with carboplatin, cisplatin or another organoplatinum compound Exclusion Criteria: Women who are pregnant or nursing History of congenital long QT syndrome Active bleeding or at risk of a bleeding disorder Other significant medical condition or history of medical condition which may put the patient at risk

Duska LR, Petroni GR, Varhegyi N, Brown J, Jelovac D, Moore KN, McGuire WP, Darus C, Barroilhet LM, Secord AA. A randomized phase II evaluation of weekly gemcitabine plus pazopanib versus weekly gemcitabine alone in the treatment of persistent or recurrent epithelial ovarian, fallopian tube or primary peritoneal carcinoma. Gynecol Oncol. 2020 Jun;157(3):585-592. doi: 10.1016/j.ygyno.2019.10.014. Epub 2020 Apr 1.