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Decreased intraperitoneal disease recurrence in epithelial ovarian cancer patients receiving intraperitoneal consolidation treatment with yttrium‐90‐labeled murine HMFG1 without improvement in overall survival
Author(s) -
Oei Angèle L.,
Verheijen René H.,
Seiden Michael V.,
Benigno Benedict B.,
Lopes Alberto,
Soper John T.,
Epenetos Agamem A.,
Massuger Leon F.
Publication year - 2007
Publication title -
international journal of cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.475
H-Index - 234
eISSN - 1097-0215
pISSN - 0020-7136
DOI - 10.1002/ijc.22663
Subject(s) - medicine , radioimmunotherapy , ovarian cancer , gastroenterology , surgery , oncology , cancer , monoclonal antibody , antibody , immunology
This study analyzes the site of disease recurrence in ovarian cancer patients to assess the influence of a single intraperitoneal (IP) administration of yttrium‐90‐labeled murine monoclonal antibody HMFG1 ( 90 Y‐muHMFG1) on the pattern of disease recurrence. In a large phase III trial ovarian cancer patients in complete clinical remission with FIGO stage Ic‐IV were randomized between standard treatment plus a single IP 90 Y‐labeled muHMFG1 versus standard treatment alone after negative second‐look laparoscopy. Case report forms of all patients with disease recurrence were reviewed to determine site and date of recurrent disease. In total 447 patients were included in the study with a median follow‐up of 3.5 years. Relapse was seen in 104/224 in the active and 98/223 in the control arm. Significantly fewer IP ( p < 0.05) and more extraperitoneal ( p < 0.05) relapses occurred in the active treatment arm. Time to IP recurrence was significantly longer ( p = 0.0019) and time to extraperitoneal recurrence was significantly shorter for the active treatment arm ( p < 0.001). The impact of IP radioimmunotherapy on IP relapse‐free survival could only be seen in the subgroup of patients with residual disease after primary surgery (HR, 0.31; 95% CI, 0.18 to 0.53; p = 0.002). Although, there is no survival benefit for IP radioimmunotherapy as consolidation treatment for epithelial ovarian cancer, we found an improved control of IP disease, that was offset by increased extraperitoneal recurrences. © 2007 Wiley‐Liss, Inc.