PRIMARY OBJECTIVES:
I. To compare the efficacy of single-agent olaparib and the combination of olaparib and cediranib (and potentially other combination arms that may be added by subsequent amendment) versus single agent cediranib as measured by progression free survival (PFS), in patients with recurrent, persistent or metastatic endometrial cancer.
II. To compare the efficacy of the combination of olaparib and AZD5363 (capivasertib), and the combination of olaparib and durvalumab (MEDI4736), and the combination of cediranib and durvalumab (MEDI4736) versus single agent cediranib as measured by progression free survival (PFS), in patients with recurrent, persistent or metastatic endometrial cancer.
SECONDARY OBJECTIVES:
I. To compare the efficacy of single-agent olaparib and the combination of olaparib and cediranib (and potentially other combination arms that may be added by subsequent amendment) versus single-agent cediranib as measured by overall survival (OS) in patients with recurrent, persistent or metastatic endometrial cancer.
II. To compare the efficacy of the combination of olaparib and AZD5363 (capivasertib), and the combination of olaparib and durvalumab (MEDI4736), and the combination of cediranib and durvalumab (MEDI4736) versus single agent cediranib as measured by overall survival (OS), in patients with recurrent, persistent or metastatic endometrial cancer.
III. To compare the efficacy of single-agent olaparib and the combination of olaparib and cediranib (and potentially other combination arms may be added by subsequent amendment versus single-agent cediranib as measured by response rate in patients with recurrent, persistent or metastatic endometrial cancer.
IV. To compare the efficacy of the combination of olaparib and AZD5363 (capivasertib), and the combination of olaparib and durvalumab (MEDI4736), and the combination of cediranib and durvalumab (MEDI4736) versus single agent cediranib as measured by response rate in patients with recurrent, persistent or metastatic endometrial cancer.
V. To assess the safety and tolerability of single-agent cediranib, single-agent olaparib, and the combination of olaparib and cediranib (and potentially other combination arms may be added by subsequent amendment).
VI. To assess the safety and tolerability of the combination of olaparib and AZD5363 (capivasertib), and the combination of olaparib and durvalumab (MEDI4736), and the combination of cediranib and durvalumab (MEDI4736).
VII. To assess if mutations in deoxyribonucleic acid (DNA) homologous repair genes (assayed prior to all treatment and prior to the study treatment) are predictive of response to olaparib alone or in combination with cediranib. (Integrated Biomarker) VIII. To assess if markers of angiogenesis in serial plasma samples are associated with response to cediranib alone or in combination with olaparib. (Integrated Biomarker)
EXPLORATORY OBJECTIVE:
I. To compare the efficacy of the combination of olaparib and cediranib versus single agent olaparib as measured by PFS, response rate and OS, if and only if the combination is superior to the single-agent cediranib arm.
OUTLINE: Patients are randomized to 1 of 6 arms.
ARM I: Patients in reference group 1 receive cediranib maleate orally (PO) once daily (QD). Cycles repeat every 28 days in the absence of disease progression or unaccepted toxicity. Additionally, patients undergo blood sample collection, bone marrow aspiration and biopsy, computed tomography (CT), echocardiography (Echo) or multigated acquisition scan (MUGA) on study.
ARM II: Patients receive olaparib PO twice daily (BID). Cycles repeat every 28 days in the absence of disease progression or unaccepted toxicity. Additionally, patients undergo blood sample collection, bone marrow aspiration and biopsy, CT, Echo or MUGA on study.
ARM III: Patients receive olaparib PO BID and cediranib maleate PO QD. Cycles repeat every 28 days in the absence of disease progression or unaccepted toxicity. Additionally, patients undergo blood sample collection, bone marrow aspiration and biopsy, CT, Echo or MUGA on study.
ARM IV: Patients receive olaparib PO BID on days 1-28 and capivasertib PO BID on days 1-4 each week. Cycles repeat every 28 days in the absence of disease progression or unaccepted toxicity. Additionally, patients undergo blood sample collection, bone marrow aspiration and biopsy, CT, Echo or MUGA on study.
ARM V: Patients receive olaparib PO BID on days 1-28 and durvalumab intravenously (IV) on day 1. Cycles repeat every 28 days in the absence of disease progression or unaccepted toxicity. Additionally, patients undergo blood sample collection, bone marrow aspiration and biopsy, CT, Echo or MUGA on study.
ARM VI: Patients receive cediranib maleate PO QD on days 1-5 each week and durvalumab IV on day 1 of each cycle. Cycles repeat every 28 days in the absence of disease progression or unaccepted toxicity. Additionally, patients undergo blood sample collection, bone marrow aspiration and biopsy, CT, Echo or MUGA on study.
ARM VII: Patients in reference group 1 receive cediranib maleate PO QD during 08/16/2021 - 06/28/2023). Cycles repeat every 28 days in the absence of disease progression or unaccepted toxicity. Additionally, patients undergo blood sample collection, bone marrow aspiration and biopsy, CT, Echo or MUGA on study.
After completion of study treatment, patients are followed up every 3 months for 2 years and then every 6 months for 3 years.