Front-line chemo-immunotherapy with carboplatin-paclitaxel using oregovomab indirect immunization in advanced ovarian cancer: A randomized phase II study

Giovanni Scambia, Maria Gabriella Ferrandina, Vanda Salutari, Molly Brewer, Roberto Angioli, Corrado Terranova, Pierluigi Benedetti Panici, Francesco Raspagliesi, Paolo Scollo, Francessco Plotti, Patricia Braly, Robert Holloway, Michael Method, Madi Madiyalakan, Eliel Bayever, Christopher Nicodemus

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8 Citazioni (Scopus)

Abstract

Background: This randomized phase II study tested the hypothesis that schedule dependent chemo-immunotherapy with oregovomab improves progression free survival (PFS) and overall survival (OS) in optimally resected, Stage III/IV ovarian cancer. Methods: Patients from both academic centers and private practice in the US and Italy with Stage III/IV optimally cytoreduced ovarian cancer were randomized to standard six cycle IV carboplatin-paclitaxel chemotherapy (CP) versus CP plus four immunizations with oregovomab (CPO). A translational assessment of a cellular immune response was the primary endpoint; PFS and OS were measured as secondary endpoints. Findings: 97 patients at thirteen centers were accrued to the protocol, 47 to CPO and 50 to CP. Technical issues led to inconsistent performance of the primary CA125 ELISPOT leading to unevaluable results. At a median follow up of 42 months, PFS and OS outcomes revealed an unexpectedly large treatment effect for CPO relative to CP alone, with median PFS of 41.8 months (95% C.I.: 21.8 - N.E.) for CPO and 12.2 months (10.4–18.6) for CP (p = 0.0027, HR 0.46, CI 0.28–0.7). For OS, the median for CPO has not yet been reached (NE) (45.2-NE) and for CP was 43.2 months (31.8-NE) (p = 0.043, HR 0.35, CI 0.16–0.74). The oregovomab treatment resulted in no change in toxicity profile from CP. Interpretation: The previously identified potential clinical benefit of IV CP when administered with oregovomab was further refined in this randomized phase II study. Increases of PFS and OS of statistically and clinically significant magnitude were evident in this study of a front line chemo-immunotherapy treatment of ovarian cancer.
Lingua originaleEnglish
pagine (da-a)N/A-N/A
RivistaGynecologic Oncology
DOI
Stato di pubblicazionePubblicato - 2020

Keywords

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