Irinotecan Liposome and Bevacizumab for the Treatment of Platinum Resistant, Recurrent, or Refractory Ovarian, Fallopian Tube, or Primary Peritoneal Cancer

PRIMARY OBJECTIVE: I. To assess the antineoplastic efficacy of irinotecan sucrosofate (irinotecan liposome) in combination with bevacizumab in women with recurrent, platinum resistant ovarian cancer, as measured by the objective response rate (ORR). SECONDARY EFFICACY OBJECTIVES: I. To determine the overall best response per Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 in women with recurrent, platinum resistant ovarian cancer who have received treatment with irinotecan liposome in combination with bevacizumab. II. To determine the clinical benefit rate (CBR) for irinotecan liposome in combination with bevacizumab in women with recurrent, platinum resistant ovarian cancer. III. To calculate the duration of response (DOR) for irinotecan liposome in combination with bevacizumab in women with recurrent, platinum resistant ovarian cancer. IV. To calculate the duration of stable disease (duration of SD) for irinotecan liposome in combination with bevacizumab in women with recurrent, platinum resistant ovarian cancer. V. To calculate the time to response (TTR) for irinotecan liposome in combination with bevacizumab in women with recurrent, platinum resistant ovarian cancer. VI. To measure median progression-free survival (PFS) in women with recurrent, platinum resistant ovarian cancer who have received treatment with irinotecan liposome in combination with bevacizumab. VII. To measure 16 week progression-free survival (PFS-16) in women with recurrent, platinum resistant ovarian cancer who have received treatment with irinotecan liposome in combination with bevacizumab. SECONDARY SAFETY OBJECTIVE: I. To assess the toxicity profile of irinotecan liposome in combination with bevacizumab in women with recurrent, platinum resistant ovarian cancer according to National Cancer Institute (NCI)-Common Terminology Criteria for Adverse Events (CTCAE) version (v)5.0. OUTLINE: Patients receive bevacizumab intravenously (IV) and irinotecan sucrosofate IV over 90 minutes on days 1 and 15. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up at 30 days, every 3 months for 1 year, and then every 6 months for 2 years.