|
1
|
Schwameis R, Fanfani F, Ebner C, Zimmermann N, Peters I, Nero C, Marth C, Ristl R, Leitner K, Grimm C, Oberndorfer F, Capasso I, Zeimet AG, Polterauer S, Scambia G, Fagotti A, Concin N. Verification of the prognostic precision of the new 2023 FIGO staging system in endometrial cancer patients - An international pooled analysis of three ESGO accredited centres. Eur J Cancer 2023; 193:113317. [PMID: 37748967 DOI: 10.1016/j.ejca.2023.113317] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 08/11/2023] [Accepted: 08/15/2023] [Indexed: 09/27/2023]
Abstract
BACKGROUND Recently, the new 2023 International Federation of Gynecology and Obstetrics (FIGO) staging system for endometrial cancer (EC) critically integrating new pathological and molecular features was published. The present study evaluated the clinical impact of the new 2023 FIGO staging system by comparing it to the previous 2009 system. METHODS This is an international, pooled retrospective study of 519 EC patients who underwent primary treatment (and molecular characterisation) at three European Society of Gynaecological Oncology (ESGO) accredited centres in Austria/Italy. Patients were categorised according to the 2009 and the 2023 FIGO staging systems. Stage shifts were analysed and (sub)stage specific 5-year progression-free (PFS) and overall survival (OS) rates were calculated and compared. Different statistical tests were applied to evaluate the prognostic precision of the two FIGO staging systems and to compare them to each other. RESULTS (Sub)stage shifts occurred in 143/519 (27.6%) patients: 123 upshifts (23.7%) and 20 (3.9%) downshifts. 2023 FIGO staging system identified a stage I cohort with a notably higher 5-year PFS rate compared to 2009 (93.0% versus 87.4%, respectively). For stage II disease, the 5-year PFS rate was similar in the 2023 and the 2009 FIGO staging systems (70.2% versus 71.2%, respectively). The two new molecularly defined 2023 FIGO substages IAmPOLEmut and IICmp53abn displayed distinct, particularly favourable and adverse oncologic outcomes within early stage disease, respectively. A remarkably lower 5-year PFS rate for stage III patients was revealed in the 2023 FIGO staging system compared to 2009 (44.4% versus 54.1%, respectively). All applied statistical tests confirmed a more accurate prediction of PFS and OS by the 2023 FIGO staging system compared to 2009. CONCLUSION The new 2023 FIGO stating system led to a substantial stage shift in about one quarter of patients leading to a higher prognostic precision. In early stage disease, the new substages added further prognostic granularity and identified treatment relevant subgroups.
Collapse
Affiliation(s)
- Richard Schwameis
- Department of Obstetrics and Gynecology, Division of General Gynecology and Gynecological Oncology, Gynecologic Cancer Unit, Comprehensive Cancer Center Vienna, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - Francesco Fanfani
- Department of Woman, Children and Public Health Sciences, Gynecologic Oncology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy; Institute of Obstetrics and Gynecology, Catholic University of the Sacred Heart, Rome, Italy.
| | - Christoph Ebner
- Department of Obstetrics and Gynecology, Medical University Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria.
| | - Naomi Zimmermann
- Department of Obstetrics and Gynecology, Division of General Gynecology and Gynecological Oncology, Gynecologic Cancer Unit, Comprehensive Cancer Center Vienna, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - Inge Peters
- Department of Woman, Children and Public Health Sciences, Gynecologic Oncology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy; Institute of Obstetrics and Gynecology, Catholic University of the Sacred Heart, Rome, Italy.
| | - Camilla Nero
- Department of Woman, Children and Public Health Sciences, Gynecologic Oncology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy; Institute of Obstetrics and Gynecology, Catholic University of the Sacred Heart, Rome, Italy.
| | - Christian Marth
- Department of Obstetrics and Gynecology, Medical University Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria.
| | - Robin Ristl
- Center for Medical Data Science, Institute of Medical Statistics, Medical University of Vienna, Austria.
| | - Katharina Leitner
- Department of Obstetrics and Gynecology, Medical University Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria.
| | - Christoph Grimm
- Department of Obstetrics and Gynecology, Division of General Gynecology and Gynecological Oncology, Gynecologic Cancer Unit, Comprehensive Cancer Center Vienna, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - Felicitas Oberndorfer
- Department of Pathology, Gynecologic Cancer Unit, Comprehensive Cancer Center Vienna, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - Ilaria Capasso
- Department of Woman, Children and Public Health Sciences, Gynecologic Oncology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy; Institute of Obstetrics and Gynecology, Catholic University of the Sacred Heart, Rome, Italy.
| | - Alain G Zeimet
- Department of Obstetrics and Gynecology, Medical University Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria.
| | - Stephan Polterauer
- Department of Obstetrics and Gynecology, Division of General Gynecology and Gynecological Oncology, Gynecologic Cancer Unit, Comprehensive Cancer Center Vienna, Medical University of Vienna, Waehringer Guertel 18-20, 1090 Vienna, Austria.
| | - Giovanni Scambia
- Department of Woman, Children and Public Health Sciences, Gynecologic Oncology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy; Institute of Obstetrics and Gynecology, Catholic University of the Sacred Heart, Rome, Italy.
| | - Anna Fagotti
- Department of Woman, Children and Public Health Sciences, Gynecologic Oncology Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy; Institute of Obstetrics and Gynecology, Catholic University of the Sacred Heart, Rome, Italy.
| | - Nicole Concin
- Department of Obstetrics and Gynecology, Medical University Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria.
| |
Collapse
|