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Lee EYP, Ip PPC, Tse KY, Chiu KWH, Chu MMY, Chai YK, Wu PY, Law JYP, Kwok ST, Chiu WK, Ngan HYS. Prospective validation of the role of PET/CT in detecting disease after neoadjuvant chemotherapy in advanced ovarian cancer. Eur Radiol 2024:10.1007/s00330-024-10674-y. [PMID: 38460014 DOI: 10.1007/s00330-024-10674-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/22/2024] [Accepted: 02/14/2024] [Indexed: 03/11/2024]
Abstract
OBJECTIVES The study aimed to compare the diagnostic accuracies of 2-[18F]FDG PET/CT and contrast-enhanced CT (ceCT) after neoadjuvant chemotherapy (NACT) in advanced ovarian cancer (OC). MATERIALS AND METHODS This study consisted historical observational cohort and prospective validation cohort. Patients with newly diagnosed stage III-IV OC scheduled for NACT were recruited, with imaging performed after three to six cycles of NACT before interval debulking surgery. Nineteen regions in the abdominopelvic cavity were scored for the presence and absence of disease, referenced to the intra-operative findings or histological specimens. Diagnostic metrics were compared using McNemar's test. RESULTS In the historical cohort (23 patients, age 58 ± 13), 2-[18F]FDG PET had an overall accuracy (Acc) 82%, sensitivity (Sen) 38%, specificity (Spe) 97%, positive predictive value (PPV) 79% and negative predictive value (NPV) 82%; ceCT had an overall Acc 86%, Sen 64%, Spe 93%, PPV 75% and NPV 89%. In the prospective cohort (46 patients, age 59 ± 9), 2-[18F] FDG PET had an overall Acc 87%, Sen 48%, Spe 98%, PPV 84% and NPV 88%; ceCT had an overall Acc 89%, Sen 66%, Spe 95%, PPV 77% and NPV 91%. No significant difference was demonstrated between the two imaging modalities (p > 0.05). High false-negative rates were observed in the right subdiaphragmatic space, omentum, bowel mesentery and serosa. High omental metabolic uptake after NACT was associated with histological non-responders (p < 0.05). CONCLUSION 2-[18F]FDG PET/CT had no additional value over ceCT with comparable diagnostic accuracy in detecting disease after NACT in advanced OC. CLINICAL RELEVANCE STATEMENT 2-[18F]FDG PET/CT is not superior to contrast-enhanced CT in determining disease after neoadjuvant chemotherapy in advanced ovarian cancer; contrast-enhanced CT should be suffice for surgical planning before interval debulking surgery. KEY POINTS • Additional value of 2-[18F]FDG PET/CT over contrast-enhanced CT is undefined in detecting disease after neoadjuvant chemotherapy. • 2-[18F]FDG PET/CT has comparable diagnostic accuracy compared to contrast-enhanced CT. • Contrast-enhanced CT will be suffice for surgical planning after neoadjuvant chemotherapy.
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Affiliation(s)
- Elaine Yuen Phin Lee
- Department of Diagnostic Radiology, School of Clinical Medicine, LKS Faculty of Medicine, University of Hong Kong, Room 406, Block K, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong, China.
| | - Philip Pun Ching Ip
- Department of Pathology, School of Clinical Medicine, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Ka Yu Tse
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Keith Wan Hang Chiu
- Department of Diagnostic Radiology, School of Clinical Medicine, LKS Faculty of Medicine, University of Hong Kong, Room 406, Block K, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong, China
| | - Mandy Man Yee Chu
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Yu Ka Chai
- Department of Obstetrics and Gynaecology, United Christian Hospital, Hong Kong, China
| | - Philip Yuguang Wu
- Department of Clinical Oncology, Pamela Youde Nethersole Eastern Hospital, Hong Kong, China
| | - Jessica Yun Pui Law
- Department of Obstetrics and Gynecology, Pamela Youde Nethersole Eastern Hospital, Hong Kong, China
| | - Shuk Tak Kwok
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, China
| | - Wan Kam Chiu
- Department of Obstetrics and Gynaecology, United Christian Hospital, Hong Kong, China
| | - Hextan Yuen Sheung Ngan
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, LKS Faculty of Medicine, University of Hong Kong, Hong Kong, China
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Saner FACM, Ruggeri G, Siegenthaler F, Wampfler J, Imboden S, Mueller MD. Change of Fagotti score is associated with outcome after neoadjuvant chemotherapy for ovarian cancer. Int J Gynecol Cancer 2023; 33:1595-1601. [PMID: 37567597 PMCID: PMC10579493 DOI: 10.1136/ijgc-2023-004540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 06/26/2023] [Indexed: 08/13/2023] Open
Abstract
OBJECTIVE To investigate whether a change in the Fagotti score (ΔFagotti) following neoadjuvant chemotherapy is predictive of resection to no residual disease (R0) and survival in women diagnosed with ovarian cancer. METHODS Women treated with neoadjuvant chemotherapy for newly diagnosed ovarian cancer between January 2012 and June 2021 at the Bern University Hospital were included in this retrospective cohort study. Fagotti scores before and after neoadjuvant chemotherapy treatment were assessed for a potential association with resection status at interval debulking surgery defined as no residual disease (R0), macroscopic residual disease with a diameter of 0.1-1 cm (R1) or >1 cm (R2), and survival. RESULTS During the study period, 130 patients received neoadjuvant chemotherapy, mainly in response to advanced ovarian cancer International Federation of Gynecology and Obstetrics (FIGO) stages IIIC (68.5%) or IV (20.8%). 91 patients (70%) experienced a relapse and 81 (62%) died due to their disease. Median overall survival was 40 months (95% CI 30.6 to 49.4). Fagotti scores dropped from a mean of 7.8 (95% CI 7.14 to 8.42) at diagnosis to 3.9 (95% CI 3.34 to 4.46, p<0.001) after neoadjuvant therapy. This decrease was associated with resection status during interval debulking surgery (mean ΔFagotti -4.9 in R0, -2.2 in R1, -0.6 in R2, p<0.001). Women whose Fagotti score declined more than 2 points after neoadjuvant chemotherapy (n=51/88, 58%) survived significantly longer (median overall survival of 42 vs 32 months, p=0.048). CONCLUSION Fagotti scores and ΔFagotti scores are associated with complete cytoreduction at interval debulking surgery and longer overall survival in women treated with neoadjuvant chemotherapy for ovarian cancer. These markers are valuable for individualized patient treatment planning and should always be performed after neoadjuvant therapy.
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Affiliation(s)
| | - Giovanni Ruggeri
- Department of Gynaecology, Inselspital University Hospital Bern, Bern, Switzerland
- University of Bern, Bern, Switzerland
| | - Franziska Siegenthaler
- Department of Gynaecology, Inselspital University Hospital Bern, Bern, Switzerland
- University of Bern, Bern, Switzerland
| | - Julian Wampfler
- University of Bern, Bern, Switzerland
- Department of Medical Oncology, Inselspital University Hospital Bern, Bern, Switzerland
| | - Sara Imboden
- Department of Gynaecology, Inselspital University Hospital Bern, Bern, Switzerland
- University of Bern, Bern, Switzerland
| | - Michael D Mueller
- Department of Gynaecology, Inselspital University Hospital Bern, Bern, Switzerland
- University of Bern, Bern, Switzerland
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The importance of the Peritoneal Cancer Index (PCI) to predict surgical outcome after neoadjuvant chemotherapy in advanced ovarian cancer. Arch Gynecol Obstet 2022; 306:1665-1672. [PMID: 35357582 PMCID: PMC9519707 DOI: 10.1007/s00404-022-06527-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/11/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE Achieving complete cytoreduction (CCR) is crucial for a patient's prognosis with advanced epithelial ovarian cancer (EOC). So far, prognostic predictors have failed to predict surgical outcome after neoadjuvant chemotherapy (NACT). In clinical trials, scores were used to predict operability in recurrent ovarian cancer (Harter et al. in N Engl J Med 385(23):2123-2131, 2021) but there is no known prediction score for CCR after NACT. The Peritoneal Cancer Index (PCI) is an established tool to predict surgical outcome in primary setting (Lampe et al. in 25:135-144, 2015). We now examined the predictive power of the PCI to achieve CCR after NACT. METHODS In this single-center study, the data of patients with advanced stage EOC (FIGO > IIIb) treated between 01/2015 and 12/2020 were analyzed retrospectively. Inclusion criteria were a mandatory staging laparoscopy, a PCI score > 25, and NACT. CT scans were analyzed in blinded fashion according to RECIST criteria (Borgani et al. in 237; 93-99, 2019) Reaction of PCI after NACT was compared with the analysis of radiologic imaging and CA-125 levels. RESULTS Three hundred and sixteen patients were screened, 62 were treated with NACT, and 23 were included in our analysis. 87% of cases presented with an FIGO IIIc stadium. The reduction of PCI itself after NACT showed to be the most powerful predictor for achieving CCR. The reduction of the initial PCI score by minimum of 8.5 points was a better predictor for CCR than reaching a PCI < 25. In contrast to data deriving from patients undergoing primary debulking surgery (PDS), we found a PCI of 17, rather than 25, to be a more valuable cut-off for CCR in neoadjuvant-treated patients. CONCLUSION The extend of PCI reduction after NACT is a better predictor for achieving CCR compared with CA125 levels and radiologic imaging. The PCI must be assessed differently in neoadjuvant setting than in a primary situation. CCR was most likely for a post-NACT PCI < 17.
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Obermair A, Beale P, Scott CL, Beshay V, Kichenadasse G, Simcock B, Nicklin J, Lee YC, Cohen P, Meniawy T. Insights into ovarian cancer care: report from the ANZGOG Ovarian Cancer Webinar Series 2020. J Gynecol Oncol 2021; 32:e95. [PMID: 34708597 PMCID: PMC8550929 DOI: 10.3802/jgo.2021.32.e95] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/31/2021] [Accepted: 10/04/2021] [Indexed: 12/11/2022] Open
Abstract
Epithelial ovarian cancer (EOC) is among the top ten causes of cancer deaths worldwide, and is one of the most lethal gynecological malignancies in high income countries, with incidence and death rates expected to rise particularly in Asian countries where ovarian cancer is among the 5 most common cancers. Despite the plethora of randomised clinical trials investigating various systemic treatment options in EOC over the last few decades, both progression-free and overall survival have remained at approximately 16 and 40 months respectively. To date the greatest impact on treatment has been made by the use of poly (ADP-ribose) polymerase (PARP) inhibitors in women with advanced EOC and a BRCA1/2 mutation. Inhibition of PARP, the key enzyme in base excision repair, is based on synthetic lethality whereby alternative DNA repair pathways in tumor cells that are deficient in homologous recombination is blocked, rendering them unviable and leading to cell death. The Australia New Zealand Gynaecological Oncology Group (ANZGOG) is the national gynecological cancer clinical trials organization for Australia and New Zealand. ANZGOG's purpose is to improve outcomes and quality of life for women with gynecological cancer through cooperative clinical trials and undertaking multidisciplinary research into the causes, prevention and treatments of gynecological cancer. This review summarizes current ovarian cancer research and treatment approaches presented by Australian and New Zealand experts in the field at the 2020 ANZGOG webinar series entitled "Ovarian Cancer systems of Care".
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Affiliation(s)
- Andreas Obermair
- Queensland Centre for Gynaecological Cancer Research, The University of Queensland, Brisbane, QLD, Australia.
| | - Philip Beale
- Department of Medical Oncology Concord Hospital, Concord, NSW, Australia
- Department of Medical Oncology Chris O'Brien Lifehouse, Camperdown, NSW, Australia
- Faculty of Medicine University of Sydney, Camperdown, NSW, Australia
| | - Clare L Scott
- Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Australia and Royal Women's Hospital, Parkville, VIC, Australia
| | - Victoria Beshay
- Molecular Diagnostic Laboratory, Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Ganessan Kichenadasse
- Flinders Centre for Innovation in Cancer, Flinders Medical centre/Flinders University, Bedford Park, SA, Australia
- South Australian Cancer Clinical network, Commission for excellence and innovation in health, Citicentre building Adelaide, SA, Australia
| | - Bryony Simcock
- Canterbury District Health Board. University of Otago, Dunedin, New Zealand
| | - James Nicklin
- Gynaecological Oncology, Royal Brisbane and Women's Hospital, Herston, QLD, Australia
- Faculty of Medicine, The University of Queensland, St Lucia, QLD, Australia
| | - Yeh Chen Lee
- Prince of Wales and Royal Hospital for Women, Randwick, NSW, Australia
- NHMRC Clinical Trials Centre, University of Sydney, NSW, Australia
- Faculty of Medicine, University of New South Wales, NSW, Australia
| | - Paul Cohen
- Department of Gynaecological Oncology, St John of God Subiaco Hospital, Subiaco, WA, Australia
- Division of Obstetrics and Gynaecology, Faculty of Health and Medical Sciences, University of Western Australia, Crawley, WA, Australia
| | - Tarek Meniawy
- Department of Medical Oncology, Sir Charles Gairdner Hospital, Nedlands, WA, Australia
- School of Medicine, University of Western Australia, Nedlands, WA, Australia
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Nakamura K, Kitahara Y, Nishimura T, Yamashita S, Kigure K, Ito I, Kanuma T. Nadir CA-125 serum levels during neoadjuvant chemotherapy and no residual tumor at interval debulking surgery predict prognosis in advanced stage ovarian cancer. World J Surg Oncol 2020; 18:200. [PMID: 32791996 PMCID: PMC7427056 DOI: 10.1186/s12957-020-01978-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 07/30/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Recent phase III randomized trials have suggested that neoadjuvant chemotherapy followed by interval debulking surgery (NACT-IDS) is a treatment option for patients with advanced epithelial ovarian cancer. This study aimed to use CA-125 and computed tomography (CT) scanning to generate a simple and clinically applicable model of predicting complete cytoreduction by interval debulking surgery (IDS) and the overall survival in patients who receive taxane/platinum-based chemotherapy as neoadjuvant chemotherapy (NACT). METHODS Patients with stage IIIc or IV epithelial ovarian cancer who underwent taxane/platinum-based NACT followed by IDS in Gunma Prefectural Cancer Center, Takasaki General Medical Center, and Gunma University from April 2009 to March 2015 were included. Patients underwent a CT scan to confirm confirm tumors unresectable by standard surgery before NACT. CA-125 levels were measured pre-NACT, after each cycle of NACT, and before IDS. CT was also performed before IDS to evaluate tumor metastasis. Data were collected retrospectively and analyzed to determine the predictive factors of complete resection and overall survival. RESULTS Among 63 patients who received NACT-IDS, 43 and 20 patients had stages IIIc and IV epithelial ovarian cancer at diagnosis, respectively. CT predictors of residual tumors after IDS such as extra-ovarian implants (P = 0.009) and omental cakes (P = 0.038) were not present. Univariate analysis revealed that the independent factors for overall survival were no residual tumor by IDS (P = 0.0016) and CA125 ≤ 20 U/ml before IDS (P = 0.0011). CONCLUSIONS Although this study had a small sample size, NACT-IDS used to completely remove macroscopic disease which significantly improved the prognosis of patients with preoperative CA-125 ≤ 20 U/ml. Results from this study provide useful information for future studies on the management of patients with advanced epithelial ovarian cancer.
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Affiliation(s)
- Kazuto Nakamura
- Department of Gynecology, Gunma Prefectural Cancer Center, 617-1, Takabayashinishi, Ota, Gunma, 373-8550, Japan.
| | - Yoshikazu Kitahara
- Department of Obstetrics and Gynecology, Gunma University Hospital, Maebashi, Gunma, 371-8511, Japan
| | - Toshio Nishimura
- Department of Obstetrics and Gynecology, Gunma University Hospital, Maebashi, Gunma, 371-8511, Japan
| | - Soichi Yamashita
- Department of Gynecology, Gunma Prefectural Cancer Center, 617-1, Takabayashinishi, Ota, Gunma, 373-8550, Japan
| | - Keiko Kigure
- Department of Gynecology, Gunma Prefectural Cancer Center, 617-1, Takabayashinishi, Ota, Gunma, 373-8550, Japan
| | - Ikuro Ito
- Department of Obstetrics and Gynecology, Takasaki General Medical Center, Takasaki, Gunma, 370-0829, Japan
| | - Tatsuya Kanuma
- Department of Gynecology, Gunma Prefectural Cancer Center, 617-1, Takabayashinishi, Ota, Gunma, 373-8550, Japan
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Yim GW, Suh DH, Kim JW, Kim SC, Kim YT. The 34th Annual Meeting of the Korean Society of Gynecologic Oncology 2019: meeting report. J Gynecol Oncol 2020; 30:e91. [PMID: 31140217 PMCID: PMC6543115 DOI: 10.3802/jgo.2019.30.e91] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 05/13/2019] [Accepted: 05/13/2019] [Indexed: 02/02/2023] Open
Abstract
The 34th Annual Meeting of Korean Society of Gynecologic Oncology (KSGO) was held in Busan, Korea from 26 to 27 April. Around 460 Korean and international clinicians gathered in Busan to share and discuss their latest work and key issues of gynecologic oncologic research and treatment. The scope of this meeting included recent clinical trials and updates in gynecologic oncology, advances in ovarian cancer treatment, targeted therapy and immunotherapy in gynecologic cancer, management of hereditary gynecologic cancer, and newly revised staging of cervical cancer. As expected, the ongoing debate regarding the recent clinical trial on minimally invasive surgery for early-stage cervical cancer was addressed throughout the congress and the initial outline of the KSGO position statement was open for discussion. The meeting was an opportunity for all participants to come together and explore scientific insights of gynecologic cancer.
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Affiliation(s)
- Ga Won Yim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
| | - Dong Hoon Suh
- Department of Obstetrics and Gynecology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jae Weon Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Korea
| | - Seung Cheol Kim
- Department of Obstetrics and Gynecology, Ewha Womans University College of Medicine, Seoul, Korea
| | - Young Tae Kim
- Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, Korea.
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