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Early tumor regrowth is a contributor to impaired survival in patients with completely resected advanced ovarian cancer. An exploratory analysis of the Intergroup trial AGO-OVAR 12
Evangelische Huyssens Stiftung, Germany; Charite Univ Med Berlin, Germany; Free Univ Berlin, Germany; Humboldt Unive Berlin, Germany; Berlin Inst Hlth, Germany; AGO Study Grp, Germany.
Evangelische Huyssens Stiftung, Germany; AGO Study Grp, Germany.
Linköping University, Department of Clinical and Experimental Medicine, Division of Surgery, Orthopedics and Oncology. Linköping University, Faculty of Medicine and Health Sciences. Karolinska Inst, Linkoping, Sweden; NSGO Study Grp, Germany.
Coordinating Ctr Clin Trials, Germany; AGO Study Grp, Germany.
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2019 (English)In: Gynecologic Oncology, ISSN 0090-8258, E-ISSN 1095-6859, Vol. 152, no 2, p. 235-242Article in journal (Refereed) Published
Abstract [en]

Objective. Surgical assessment of residual tumor provides the strongest prognostic information in advanced ovarian cancer (AOC), with the best outcome observed after complete resection. Postoperative radiological assessment before initiation of chemotherapy can supplement the information obtained by surgical assessment; however, it may also reveal conflicting findings. Methods. Patients with AOC enrolled in the AGO-OVAR 12 trial underwent baseline imaging before the first chemotherapy cycle. The findings from surgical and radiologic assessment for disease extend were compared. Additionally, an integrated approach was assessed. Results. Complete data from all 3 assessment methods were available for 1345 patients. Of 689 patients with complete resection, tumor was observed in 28% and 22% of patients undergoing radiologic and integrated assessment, respectively. Patients with surgical- radiological and surgical-integrated concordant findings showed a 5-year overall survival (5Y-OS) of 72% and 71%, whereas patients with surgical-radiological and surgical-integrated discordant results showed inferior 5Y-OS of 47% and 49%, respectively. Patients with surgically assessed residual disease had a 5-YOS of 37%. The interval between surgery and baseline assessment was independently associated with discordance between assessment methods, which might reflect early tumor regrowth. Conclusions. Baseline tumor assessment before chemotherapy provides information that stratifies patients with complete resection into different prognostic groups. Integrating the data from different assessment methods might lead to improved definitions of prognostic groups. Further investigation to determine if earlier initiation of chemotherapy after debulking surgery could increase survival of patients with early tumor regrowth is warranted. (C) 2018 Published by Elsevier Inc.

Place, publisher, year, edition, pages
ACADEMIC PRESS INC ELSEVIER SCIENCE , 2019. Vol. 152, no 2, p. 235-242
Keywords [en]
Advanced ovarian cancer; Debulking surgery; Pre-chemotherapy imaging; Prognosis
National Category
Surgery
Identifiers
URN: urn:nbn:se:liu:diva-155010DOI: 10.1016/j.ygyno.2018.11.008ISI: 000459089600004PubMedID: 30466805OAI: oai:DiVA.org:liu-155010DiVA, id: diva2:1297521
Available from: 2019-03-20 Created: 2019-03-20 Last updated: 2019-03-20

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Åvall Lundqvist, Elisabeth
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Division of Surgery, Orthopedics and OncologyFaculty of Medicine and Health Sciences
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