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Perrone C, Angioli R, Luvero D, Giannini A, Di Donato V, Cuccu I, Muzii L, Raspagliesi F, Bogani G. Targeting BRAF pathway in low-grade serous ovarian cancer. J Gynecol Oncol 2024; 35:e104. [PMID: 38768941 PMCID: PMC11262891 DOI: 10.3802/jgo.2024.35.e104] [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: 02/19/2024] [Revised: 04/14/2024] [Accepted: 05/07/2024] [Indexed: 05/22/2024] Open
Abstract
Mutations in genes encoding for proteins along the RAS-RAF-MEK-ERK pathway have been detected in a variety of tumor entities including ovarian carcinomas. In the recent years, several inhibitors of this pathway have been developed, whose antitumor potential is currently being assessed in different clinical trials. Low grade serous ovarian carcinoma, is a rare gynecological tumor which shows favorable overall survival, compared to the general ovarian cancer population, but worrying resistance to conventional chemotherapies. The clinical behavior of low grade serous ovarian carcinoma reflects the different gene profile compared to high-grade serous carcinoma: KRAS/BRAF mutations. BRAF inhibitors as single agents were approved for the treatment of BRAF mutated tumors. Nevertheless, many patients face progressive disease. The understanding of the mechanisms of resistance to BRAF inhibitors therapy and preclinical studies showing that BRAF and mitogen-activated protein kinase kinase (MEK) inhibitors combined therapy delays the onset of resistance compared to BRAF inhibitor single agent, led to the clinical investigation of combined therapy. The aim of this paper is to review the efficacy and safety of the combination of BRAF plus MEK inhibitors on ovarian carcinomas, in particularly focusing on low grade serous ovarian carcinoma.
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Affiliation(s)
- Chiara Perrone
- Department of Gynecological, Obstetrical and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - Roberto Angioli
- Department of Gynecology, Campus Bio-Medico University Hospital Foundation, Rome, Italy
| | - Daniela Luvero
- Department of Gynecology, Campus Bio-Medico University Hospital Foundation, Rome, Italy
| | - Andrea Giannini
- Department of Gynecological, Obstetrical and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - Violante Di Donato
- Department of Gynecological, Obstetrical and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - Ilaria Cuccu
- Department of Gynecological, Obstetrical and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - Ludovico Muzii
- Department of Gynecological, Obstetrical and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | - Francesco Raspagliesi
- Gynecologic Oncologic Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Giorgio Bogani
- Gynecologic Oncologic Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy.
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2
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Bai SN, Wu Q, Song LY. Primary ovarian cancer combined with primary fallopian tube cancer: A case report. World J Clin Cases 2024; 12:3188-3193. [PMID: 38898863 PMCID: PMC11185404 DOI: 10.12998/wjcc.v12.i17.3188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/09/2024] [Accepted: 05/06/2024] [Indexed: 06/04/2024] Open
Abstract
BACKGROUND Low grade serous carcinoma of the ovary (LGSOC) is a rare type of epithelial ovarian cancer with a low incidence rate. The origin of ovarian cancer has always been a hot topic in gynecological oncology research, and some scholars believe that the origin of ovarian malignant tumors is the fallopian tubes. Primary fallopian tube cancer is the lowest incidence of malignant tumors in the female reproductive system. There are only a few reports in the literature, but the mortality rate is very high. But in clinical practice, fallopian tube cancer is very common, but in most cases, it is classified as ovarian cancer. CASE SUMMARY We report a 54 years old postmenopausal woman who was hospitalized with a lower abdominal mass and underwent surgical treatment. The final pathological confirmation was low-grade serous carcinoma of the right ovary and low-grade serous carcinoma of the left fallopian tube. No special treatment was performed after the surgery, and the patient was instructed to undergo regular follow-up without any signs of disease progression. CONCLUSION The prognosis of LGSOC is relatively good, over 80% of patients still experience disease recurrence.
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Affiliation(s)
- Su-Ning Bai
- Department of Gynecology, Hebei General Hospital, Shijiazhuang 050000, Hebei Province, China
| | - Qi Wu
- Department of Gynecology, Hebei General Hospital, Shijiazhuang 050000, Hebei Province, China
| | - Li-Yun Song
- Department of Gynecology, Hebei General Hospital, Shijiazhuang 050000, Hebei Province, China
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3
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Giannecchini GV, da Silva JL, de Oliveira Bretas G, Dos Santos ALS, Baltar LFR, de Melo AC. Exploring novel approaches in the systemic therapy of low-grade serous carcinoma of the ovary: a literature review. Front Med (Lausanne) 2024; 11:1366603. [PMID: 38835797 PMCID: PMC11148250 DOI: 10.3389/fmed.2024.1366603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Accepted: 04/26/2024] [Indexed: 06/06/2024] Open
Abstract
By presenting a comprehensive analysis of low-grade serous carcinomas (LGSCs), a subset of epithelial ovarian cancers, this review delves into their distinct molecular characteristics, clinicopathological features and systemic therapy options, emphasizing their differences from high-grade serous carcinomas (HGSCs). Notably, LGSCs exhibit prevalent RAS/RAF/MEK/MAPK pathway activation, KRAS and BRAF mutations, and infrequent p53 mutations. While chemotherapy is commonly employed, LGSCs display lower responsiveness compared to HGSCs. Hormone therapy, particularly endocrine maintenance therapy, is explored due to the higher estrogen receptor expression. Novel therapeutic approaches involving CDK4/6 inhibitors, MEK inhibitors, and antiangiogenic agents like bevacizumab are also investigated. Ongoing clinical trials are striving to enhance LGSC treatment strategies, offering valuable insights for future therapeutic advancements in this challenging ovarian cancer subtype.
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Affiliation(s)
| | - Jessé Lopes da Silva
- Oncoclínicas&Co - Medica Scientia Innovation Research (MEDSIR), Sao Paulo, Brazil
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4
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Dash B, Shylasree TS, Rekhi B, Gulia S, Ghosh J, Maheshwari A, Patil A, Sable N, Gupta S. Clinical Observations and Outcomes in Advanced Low-Grade Serous Carcinoma of the Ovary: Case Series from a Tertiary Cancer Center. Indian J Surg Oncol 2023; 14:784-792. [PMID: 38187842 PMCID: PMC10767051 DOI: 10.1007/s13193-023-01775-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 05/23/2023] [Indexed: 01/09/2024] Open
Abstract
Low-grade serous carcinoma (LGSC) is a rare histologic subtype of ovarian cancer. We present detailed management of 15 cases of advanced LGSC from a tertiary cancer center of India. Fifteen cases of advanced LGSC who underwent cytoreductive surgery (CRS) were analyzed from a prospectively maintained database. Baseline demographic characteristics, surgical details, and chemotherapy details were recorded. Descriptive statistics were summarized, and progression-free survival (PFS) and overall survival (OS) were estimated. The median age was 37 years. Nine patients had received NACT. All cases were FIGO stage III. Mean PCI was 15. Eleven patients had a completeness of cytoreduction score of 0-1. The median surgical time was 7.5 h; nine patients required multiple gastrointestinal resections. Median blood loss was 2500 ml. Median postoperative ventilation, ICU stay, and hospital stays were 1, 2, and 16 days, respectively. One patient had a grade III complication. Four patients received adjuvant chemotherapy. There was no postoperative mortality at the end of 90 days of surgery. All the patients except one were offered hormonal maintenance therapy. At a median follow-up of 43 months, 4 patients were disease-free, 9 had a recurrence, one died of disease progression, and one was lost to follow-up. Most recurrences were locoregional in the peritoneal cavity or pelvis. Four-year OS and PFS were 71.8% and 29.7%, respectively. Advanced LGSCs occur mostly in young premenopausal women with favorable oncologic outcomes. Optimal CRS is the mainstay of treatment. Relative chemo-resistance and hormone receptor positivity provide an excellent therapeutic opportunity for endocrine therapy.
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Affiliation(s)
- Biswajit Dash
- Gynaecological Oncology Disease Management Group, Tata Memorial Centre, HBNI University, Mumbai, India
| | - T. S. Shylasree
- Gynaecological Oncology Disease Management Group, Tata Memorial Centre, HBNI University, Mumbai, India
- Department of Gynaecological Oncology, Aberdeen Royal Infirmary, Foresterhill, Aberdeen, AB252ZN UK
| | - Bharat Rekhi
- Gynaecological Oncology Disease Management Group, Tata Memorial Centre, HBNI University, Mumbai, India
| | - Seema Gulia
- Gynaecological Oncology Disease Management Group, Tata Memorial Centre, HBNI University, Mumbai, India
| | - Jaya Ghosh
- Gynaecological Oncology Disease Management Group, Tata Memorial Centre, HBNI University, Mumbai, India
| | - Amita Maheshwari
- Gynaecological Oncology Disease Management Group, Tata Memorial Centre, HBNI University, Mumbai, India
| | - Akshay Patil
- Gynaecological Oncology Disease Management Group, Tata Memorial Centre, HBNI University, Mumbai, India
| | - Nilesh Sable
- Gynaecological Oncology Disease Management Group, Tata Memorial Centre, HBNI University, Mumbai, India
| | - Sudeep Gupta
- Gynaecological Oncology Disease Management Group, Tata Memorial Centre, HBNI University, Mumbai, India
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5
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Grisham RN, Slomovitz BM, Andrews N, Banerjee S, Brown J, Carey MS, Chui H, Coleman RL, Fader AN, Gaillard S, Gourley C, Sood AK, Monk BJ, Moore KN, Ray-Coquard I, Shih IM, Westin SN, Wong KK, Gershenson DM. Low-grade serous ovarian cancer: expert consensus report on the state of the science. Int J Gynecol Cancer 2023; 33:1331-1344. [PMID: 37591609 PMCID: PMC10511962 DOI: 10.1136/ijgc-2023-004610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2023] [Indexed: 08/19/2023] Open
Abstract
Compared with high-grade serous carcinoma, low-grade serous carcinoma of the ovary or peritoneum is a less frequent epithelial ovarian cancer type that is poorly sensitive to chemotherapy and affects younger women, many of whom endure years of ineffective treatments and poor quality of life. The pathogenesis of this disease and its management remain incompletely understood. However, recent advances in the molecular characterization of the disease and identification of novel targeted therapies with activity in low-grade serous carcinoma offer the promise of improved outcomes. To update clinicians regarding recent scientific and clinical trial advancements and discuss unanswered questions related to low-grade serous carcinoma diagnosis and treatment, a panel of experts convened for a workshop in October 2022 to develop a consensus document addressing pathology, translational research, epidemiology and risk, clinical management, and ongoing research. In addition, the patient perspective was discussed. The recommendations developed by this expert panel-presented in this consensus document-will guide practitioners in all settings regarding the clinical management of women with low-grade serous carcinoma and discuss future opportunities to improve research and patient care.
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Affiliation(s)
- Rachel N Grisham
- Department of Medicine, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, New York, USA
| | - Brian M Slomovitz
- Department of Gynecologic Oncology, Mount Sinai Medical Center, Miami Beach, Florida, USA
- Florida International University, Miami, Florida, USA
| | - Nicole Andrews
- STAAR Ovarian Cancer Foundation, Western Springs, Illinois, USA
| | | | - Jubilee Brown
- Department of Gynecologic Oncology, Levine Cancer Institute at Atrium Health, Wake Forest University, Charlotte, North Carolina, USA
| | - Mark S Carey
- Division of Gynecologic Oncology, Vancouver Coastal Health, Vancouver, British Columbia, Canada
| | - Herman Chui
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Robert L Coleman
- Sarah Cannon Research Institute (SCRI), Nashville, Tennessee, USA
| | - Amanda N Fader
- Department of Gynecology and Obstetrics, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Stephanie Gaillard
- Department of Gynecology and Obstetrics, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Charlie Gourley
- Cancer Research UK Scotland Centre, University of Edinburgh, Edinburgh, UK
| | - Anil K Sood
- Department of Gynecologic Oncology and Reproductive Medicine, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Bradley J Monk
- Division of Gynecologic Oncology, Honor Health, University of Arizona, Creighton University, Phoenix, Arizona, USA
| | - Kathleen N Moore
- Department of Gynecologic Oncology, Stephenson Cancer Center at the University of Oklahoma Health Sciences, Oklahoma City, Oklahoma, USA
| | - Isabelle Ray-Coquard
- Department of Medical Oncology, Centre Léon Bérard, Lyon, France
- Université Claude Bernard Lyon 1, Villeurbanne, France
| | - Ie-Ming Shih
- Department of Gynecology and Obstetrics, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Shannon N Westin
- Department of Gynecologic Oncology and Reproductive Medicine, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Kwong-Kwok Wong
- Department of Gynecologic Oncology and Reproductive Medicine, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - David M Gershenson
- Department of Gynecologic Oncology and Reproductive Medicine, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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Manning-Geist BL, Kahn R, Nemirovsky D, Girshman J, Laibangyang A, Gordhandas S, Iasonos A, Chui MH, Roche KL, Zivanovic O, Chi DS, Aghajanian C, Grisham RN. Chemotherapy response in low-grade serous ovarian carcinoma at a comprehensive cancer center: Readdressing the roles of platinum and cytotoxic therapies. Cancer 2023; 129:2004-2012. [PMID: 36951509 PMCID: PMC10682957 DOI: 10.1002/cncr.34753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/02/2023] [Accepted: 02/23/2023] [Indexed: 03/24/2023]
Abstract
BACKGROUND Data on platinum sensitivity of low-grade serous ovarian carcinoma (LGSOC) in the upfront setting is lacking, and there is limited and contradictory information on chemotherapy responses in recurrent disease. METHODS Patients with LGSOC seen at a comprehensive cancer center from January 1, 1998 to September 30, 2021 were identified from institutional databases. Response to neoadjuvant chemotherapy (NACT) or adjuvant platinum-based chemotherapy and to second- to fifth-line regimens was retrospectively characterized by Response Evaluation Criteria in Solid Tumors (RECIST) v1.1. Wilcoxon rank-sum and two-tailed Fisher exact tests were employed. RESULTS Of 50 patients, 12 received platinum doublets for suboptimal residual disease and 11 as NACT. Of 12 patients with suboptimal residual disease, seven (58%) achieved objective responses (five partial responses [PRs] and two complete responses); of the 11 patients who underwent NACT, one (9%) achieved a PR (p = .027). The 15 remaining patients had stable disease on first-line platinum chemotherapy. Of 44 patients who recurred, 20 had RECIST-evaluable responses to second-line and 27 to third-line chemotherapy. Objective response rates to platinum-based chemotherapy were 22% (two of nine) in the second line and 10% (one of 10) in the third. In second and third lines, highest response rates were observed with nonplatinum chemotherapy with bevacizumab, at 100% (two of two) and 30% (three of 10), respectively. CONCLUSIONS Primary platinum-based chemotherapy has moderate activity in LGSOC and minimal activity in the recurrent setting, suggesting standard definitions of platinum sensitivity may not apply in LGSOC. In the second and third lines, nonplatinum chemotherapy/bevacizumab elicited the highest response rates.
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Affiliation(s)
- Beryl L. Manning-Geist
- Gynecology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Ryan Kahn
- Gynecology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
| | - David Nemirovsky
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Jeffrey Girshman
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Anya Laibangyang
- Gynecology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
- Department of OB/GYN, Danbury Hospital, Danbury, CT
| | - Sushmita Gordhandas
- Gynecology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Alexia Iasonos
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY
| | - M. Herman Chui
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Kara Long Roche
- Gynecology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
- Department of OB/GYN, Weill Cornell Medical College, New York, NY
| | - Oliver Zivanovic
- Gynecology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
- Department of OB/GYN, Weill Cornell Medical College, New York, NY
| | - Dennis S. Chi
- Gynecology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
- Department of OB/GYN, Weill Cornell Medical College, New York, NY
| | - Carol Aghajanian
- Gynecologic Medical Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
- Department of Medicine, Weill Cornell Medical College, New York, NY
| | - Rachel N. Grisham
- Gynecologic Medical Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
- Department of Medicine, Weill Cornell Medical College, New York, NY
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7
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Low-Grade Serous Ovarian Carcinoma: Challenges and Solutions. INDIAN JOURNAL OF GYNECOLOGIC ONCOLOGY 2022. [DOI: 10.1007/s40944-022-00675-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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8
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Grisham RN, Chui MH. Advancements in Low-Grade Serous Carcinoma of the Ovary and Peritoneum. Curr Oncol Rep 2022; 24:1549-1555. [PMID: 35962920 PMCID: PMC9613594 DOI: 10.1007/s11912-022-01315-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/29/2022] [Indexed: 01/27/2023]
Abstract
PURPOSE OF REVIEW Low-grade serous ovarian cancer (LGSOC) is a rare form of epithelial ovarian cancer that generally exhibits a protracted course and is less sensitive to chemotherapy than high-grade serous ovarian cancer. Over the past decade, it has become clear that patients with LGSOC have a clinically distinct course and are molecularly and histologically unique from patients with high-grade serous ovarian cancer. RECENT FINDINGS Endocrine therapy is frequently used for the treatment of patients with recurrent LGSOC and is now also part of the standard upfront treatment of this disease, with an ongoing phase III clinical trial seeking to determine if chemotherapy can be eliminated altogether from the initial treatment of LGSOC. Tumors are frequently found to exhibit alterations affecting the mitogen-activated protein kinase (MAPK) pathway, recently leading to developments in the use of targeted treatments for those patients with recurrent disease. LGSOC is a clinically, histologically, and molecularly unique form of epithelial ovarian cancer. Recent advances in the understanding of endocrine and molecular drivers of this disease have led to changes in both the treatment of newly diagnosed and recurrent disease, with ongoing studies focused on refining upfront therapy and seeking novel targeted combinations for those patients with recurrent disease.
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Affiliation(s)
- Rachel N Grisham
- Gynecologic Medical Oncology, Department of Medicine, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, NY, USA.
| | - M Herman Chui
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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9
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Manning-Geist B, Gordhandas S, Liu YL, Zhou Q, Iasonos A, Da Cruz Paula A, Mandelker D, Roche KL, Zivanovic O, Maio A, Kemel Y, Chi DS, O’Cearbhaill RE, Aghajanian C, Weigelt B, Chui MH, Grisham RN. MAPK Pathway Genetic Alterations Are Associated with Prolonged Overall Survival in Low-Grade Serous Ovarian Carcinoma. Clin Cancer Res 2022; 28:4456-4465. [PMID: 35443055 PMCID: PMC9582036 DOI: 10.1158/1078-0432.ccr-21-4183] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 02/18/2022] [Accepted: 04/14/2022] [Indexed: 12/14/2022]
Abstract
PURPOSE To characterize the somatic mutational landscape, investigate associations between genetic alterations and clinical outcomes, and determine the prevalence of pathogenic germline mutations in low-grade serous ovarian carcinomas (LGSC). EXPERIMENTAL DESIGN Patients with LGSC tumors who underwent panel-based sequencing of up to 505 genes were identified. Data on somatic and germline mutations; copy-number alterations; and clinicopathologic features, including age at diagnosis, platinum sensitivity, and overall survival (OS), were collected. RESULTS Following central pathology rereview, 119 patients with LGSC were identified for analysis. Of these, 110 (92%) had advanced-stage disease (stages III/IV). Somatic KRAS (33%), NRAS (11%), EIF1AX (10%), and BRAF (11%) alterations were the most common; MAPK pathway alterations were found in 60% (n = 71) of LGSCs. KRAS mutations were significantly associated with age at diagnosis more than 50 years (P = 0.02) and platinum-sensitive disease (P = 0.03). On multivariate analysis, MAPK pathway alterations (P = 0.02) and platinum sensitivity (P = 0.005) were significantly associated with improved OS. Seventy-nine patients (66%) underwent germline genetic testing; seven pathogenic germline mutations were identified: MUTYH (n = 2), BAP1 (n = 1), RB1 (n = 1), CHEK2 (n = 1), APC (n = 1), and FANCA (n = 1). There were no germline BRCA1/2 mutations. One germline MUTYH-associated LGSC harbored loss-of-heterozygosity at the MUTYH locus, and the patient with the germline BAP1 mutation also harbored a somatic BAP1 frameshift mutation. CONCLUSIONS This study showed that MAPK pathway alterations in LGSC, including KRAS mutations, are independently associated with platinum sensitivity and prolonged survival. Germline data, which were limited, identified few pathogenic germline mutations in patients with LGSC. See related commentary by Veneziani and Oza, p. 4357.
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Affiliation(s)
- Beryl Manning-Geist
- Gynecology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sushmita Gordhandas
- Gynecology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ying L. Liu
- Gynecologic Medical Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Qin Zhou
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Alexia Iasonos
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Arnaud Da Cruz Paula
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Diana Mandelker
- Diagnostic Molecular Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Kara Long Roche
- Gynecology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Obstetrics and Gynecology, Weill Cornell Medical College, New York, NY, USA
| | - Oliver Zivanovic
- Gynecology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Obstetrics and Gynecology, Weill Cornell Medical College, New York, NY, USA
| | - Anna Maio
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Yelena Kemel
- Clinical Genetics Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Dennis S. Chi
- Gynecology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Obstetrics and Gynecology, Weill Cornell Medical College, New York, NY, USA
| | - Roisin E. O’Cearbhaill
- Gynecologic Medical Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Carol Aghajanian
- Gynecologic Medical Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Britta Weigelt
- Gynecology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - M Herman Chui
- Department of Pathology and Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Rachel N. Grisham
- Gynecologic Medical Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
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10
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Low-Grade Serous Carcinoma of the Ovary: The Current Status. Diagnostics (Basel) 2022; 12:diagnostics12020458. [PMID: 35204549 PMCID: PMC8871133 DOI: 10.3390/diagnostics12020458] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/30/2022] [Accepted: 02/04/2022] [Indexed: 11/16/2022] Open
Abstract
Low-grade serous carcinoma (LGSC) of the ovary is a rare histological subtype of epithelial ovarian carcinoma. It has distinct clinical behavior and a specific molecular profile. Compared with high-grade serous carcinoma, this tumor presents at a younger age, has an indolent course, and is associated with prolonged survival. LGSC can arise de novo or originate following a serous borderline tumor (SBT). Pathological differentiation between LGSC and other ovarian carcinoma histological subtypes is fundamental. Several factors might influence the overall outcome, such as the age at diagnosis, current smoking, elevated body mass index, mutational status, hormonal receptors’ expression, and Ki-67 proliferation index. Surgery is the main treatment option in LGSC, and efforts must be maximized to achieve a microscopic residual in metastatic disease. Despite being relatively chemo-resistant, adjuvant platinum-based chemotherapy remains the standard of care in LGSC. Hormonal maintenance therapy after adjuvant chemotherapy results in improved outcomes. Treatment options for disease recurrence include secondary cytoreductive surgery, chemotherapy, hormonal therapy, targeted therapy, and clinical trials. Advancements in genomic studies and targeted therapies are expected to change the treatment landscape in LGSC.
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11
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Beyond BRCA1/2: Homologous Recombination Repair Genetic Profile in a Large Cohort of Apulian Ovarian Cancers. Cancers (Basel) 2022; 14:cancers14020365. [PMID: 35053526 PMCID: PMC8773795 DOI: 10.3390/cancers14020365] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 12/29/2021] [Accepted: 01/07/2022] [Indexed: 02/08/2023] Open
Abstract
Simple Summary Ovarian cancer (OC) is the second most common gynecologic malignancy and the most common cause of death among women with gynecologic cancer. Despite significant improvements having been made over the past decades, OC remains one of the most challenging malignancies to treat. Targeted therapies, such as PARPi, have emerged as one of the most interesting treatments for OC, particularly in women with BRCA1 or BRCA2 mutations. or those with a dysfunctional homologous recombination repair pathway. The purpose of our study is to address the role of NGS-targeted resequencing in the clinical routine of OC, focusing not only on BRCA1/2 but also on the homologous recombination repair genetic profile. Abstract Background: Pathogenic variants in homologous recombination repair (HRR) genes other than BRCA1/2 have been associated with a high risk of ovarian cancer (OC). In current clinical practice, genetic testing is generally limited to BRCA1/2. Herein, we investigated the mutational status of both BRCA1/2 and 5 HRR genes in 69 unselected OC, evaluating the advantage of multigene panel testing in everyday clinical practice. Methods: We analyzed 69 epithelial OC samples using an NGS custom multigene panel of the 5 HRR pathways genes, beyond the genetic screening routine of BRCA1/2 testing. Results: Overall, 19 pathogenic variants (27.5%) were detected. The majority (21.7%) of patients displayed a deleterious mutation in BRCA1/2, whereas 5.8% harbored a pathogenic variant in one of the HRR genes. Additionally, there were 14 (20.3%) uncertain significant variants (VUS). The assessment of germline mutational status showed that a small number of variants (five) were not detected in the corresponding blood sample. Notably, we detected one BRIP1 and four BRCA1/2 deleterious variants in the low-grade serous and endometrioid histology OC, respectively. Conclusion: We demonstrate that using a multigene panel beyond BRCA1/2 improves the diagnostic yield in OC testing, and it could produce clinically relevant results.
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Mutational spectrum in clinically aggressive low-grade serous carcinoma/serous borderline tumors of the ovary-Clinical significance of BRCA2 gene variants in genomically stable tumors. Gynecol Oncol 2021; 161:762-768. [PMID: 33773808 DOI: 10.1016/j.ygyno.2021.03.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 03/15/2021] [Indexed: 11/23/2022]
Abstract
OBJECTIVE The mutational spectra of low-grade serous carcinomas (LGSCs) and serous borderline tumors (SBTs) of the ovary are poorly characterized. We present 17 cases of advanced or recurrent LGSC/SBT patients who underwent molecular profiling. METHODS Thirteen LGSCs and four SBTs underwent targeted gene panel testing by massively parallel sequencing. Microsatellite stability and tumor mutation burdens (TMBs) were determined based on panel sequencing data. RESULTS The mean TMB was 5.2 mutations/megabase (range 3-10) in 14 cases. Twelve of twelve (12/12) cases were microsatellite stable. Clear driver mutations were identified in 11 cases, namely KRAS (5/17), BRAF (2/17), NRAS (2/17) and ERBB2 (2/17). Five cases harbored BRCA2 alterations (allele fractions: 44-51%), including two classified as likely benign/benign variants, and three classified as variants of uncertain significance (VUSs), with two variants being confirmed to be germline. The three BRCA2 VUSs were missense variants that were assessed to be of unlikely clinical significance, based on family cancer history and expected impact on protein function. Two patients received PARP inhibitors during their disease course, with neither of the patients demonstrating appreciable response. CONCLUSIONS The mutational spectra in 17 clinically aggressive SBT/LGSC cases demonstrate genomically stable tumors, frequently driven by the RTK/RAS/MAPK pathway. While BRCA2 variants were identified, our data demonstrate BRCA2 gene variants are at most VUSs and of dubious clinical significance, in contrast to disease-associated BRCA1/2 variants that may be identified in high-grade serous carcinoma. Germline testing and PARP inhibitors are thus expected to provide limited benefit to patients with LGSC/SBTs.
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Vatansever D, Taskiran C, Mutlu Meydanli M, Gungorduk K, Akbayir O, Yalcin I, Demirkiran F, Sozen H, Ozgul N, Celik H, Onan MA, Taskin S, Oge T, Simsek T, Abboud S, Yuksel IT, Ayhan A. Impact of cytoreductive surgery on survival of patients with low-grade serous ovarian carcinoma: A multicentric study of Turkish Society of Gynecologic Oncology (TRSGO-OvCa-001). J Surg Oncol 2021; 123:1801-1810. [PMID: 33657253 DOI: 10.1002/jso.26450] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/21/2021] [Accepted: 02/22/2021] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND OBJECTIVES The aim of this study was to analyze the factors affecting recurrence-free (RFS) and overall survival (OS) rates of women diagnosed with low-grade serous ovarian cancer (LGSOC). METHODS Databases from 13 participating centers in Turkey were searched retrospectively for women who had been treated for stage I-IV LGSOC between 1997 and 2018. RESULTS Overall 191 eligible women were included. The median age at diagnosis was 49 years (range, 21-84 years). One hundred seventy-five (92%) patients underwent primary cytoreductive surgery. Complete and optimal cytoreduction was achieved in 148 (77.5%) and 33 (17.3%) patients, respectively. The median follow-up period was 44 months (range, 2-208 months). Multivariate analysis showed the presence of endometriosis (p = .012), lymphovascular space invasion (LVSI) (p = .022), any residual disease (p = .023), and the International Federation of Gynecology and Obstetrics (FIGO) stage II-IV disease (p = .045) were negatively correlated with RFS while the only presence of residual disease (p = .002) and FIGO stage II-IV disease (p = .003) significantly decreased OS. CONCLUSIONS The maximal surgical effort is warranted for complete cytoreduction as achieving no residual disease is the single most important variable affecting the survival of patients with LGSOC. The prognostic role of LVSI and endometriosis should be evaluated by further studies as both of these parameters significantly affected RFS.
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Affiliation(s)
- Dogan Vatansever
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, School of Medicine, Koc University, Istanbul, Turkey
| | - Cagatay Taskiran
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, School of Medicine, Koc University, Istanbul, Turkey
| | - Mehmet Mutlu Meydanli
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Zekai Tahir Burak Training and Research Hospital, Ankara, Turkey
| | - Kemal Gungorduk
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Tepecik Training and Research Hospital, Izmir, Turkey
| | - Ozgur Akbayir
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Kanuni Sultan Süleyman Training and Research Hospital, Istanbul, Turkey
| | - Ibrahim Yalcin
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Zekai Tahir Burak Training and Research Hospital, Ankara, Turkey
| | - Fuat Demirkiran
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Cerrahpasa School of Medicine, Istanbul University, Istanbul, Turkey
| | - Hamdullah Sozen
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Istanbul School of Medicine, Istanbul University, Istanbul, Turkey
| | - Nejat Ozgul
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, School of Medicine, Hacettepe University, Ankara, Turkey
| | - Husnu Celik
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, School of Medicine, Adana Baskent University, Adana, Turkey
| | - Mehmet Anil Onan
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, School of Medicine, Gazi University, Ankara, Turkey
| | - Salih Taskin
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, School of Medicine, Ankara University, Ankara, Turkey
| | - Tufan Oge
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, School of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Tayyup Simsek
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, School of Medicine, Akdeniz University, Antalya, Turkey
| | - Sara Abboud
- Department of Obstetrics and Gynecology, Faculty of Medicine, Saint-Joseph University, Beirut, Lebanon
| | - Ilkbal Temel Yuksel
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Kanuni Sultan Süleyman Training and Research Hospital, Istanbul, Turkey
| | - Ali Ayhan
- Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, School of Medicine, Ankara Baskent University, Ankara, Turkey
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Therapeutic Approach to Low-Grade Serous Ovarian Carcinoma: State of Art and Perspectives of Clinical Research. Cancers (Basel) 2020; 12:cancers12051336. [PMID: 32456205 PMCID: PMC7281204 DOI: 10.3390/cancers12051336] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/14/2020] [Accepted: 05/21/2020] [Indexed: 12/14/2022] Open
Abstract
Low-grade serous ovarian carcinoma (LGSOC) is a distinct pathologic and clinical entity, characterized by less aggressive biological behavior, lower sensitivity to chemotherapy and longer survival compared with high-grade serous ovarian carcinoma. LGSOC often harbors activating mutations of genes involved in mitogen activated protein kinase (MAPK) pathway. Patients with disease confined to the gonad(s) should undergo bilateral salpingo-oophorectomy, total hysterectomy and comprehensive surgical staging, although fertility-sparing surgery can be considered in selected cases. Women with stage IA-IB disease should undergo observation alone after surgery, whereas observation, chemotherapy or endocrine therapy are all possible options for those with stage IC-IIA disease. Patients with advanced disease should undergo primary debulking surgery with the aim of removing all macroscopically detectable disease, whereas neoadjuvant chemotherapy followed by interval debuking surgery. After surgery, the patients can receive either carboplatin plus paclitaxel followed by endocrine therapy or endocrine therapy alone. Molecularly targeted agents, and especially MEK inhibitors and Cyclin-dependent kinase (CDK) inhibitors, are currently under evaluation. Additional research on the genomics of LGSOC and clinical trials on the combination of MEK inhibitors with hormonal agents, other molecularly targeted agents or metformin, are strongly warranted to improve the prognosis of patients with this malignancy.
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Slomovitz B, Gourley C, Carey MS, Malpica A, Shih IM, Huntsman D, Fader AN, Grisham RN, Schlumbrecht M, Sun CC, Ludemann J, Cooney GA, Coleman R, Sood AK, Mahdi H, Wong KK, Covens A, O'Malley DM, Lecuru F, Cobb LP, Caputo TA, May T, Huang M, Siemon J, Fernández ML, Ray-Coquard I, Gershenson DM. Low-grade serous ovarian cancer: State of the science. Gynecol Oncol 2020; 156:715-725. [PMID: 31969252 DOI: 10.1016/j.ygyno.2019.12.033] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/18/2019] [Accepted: 12/23/2019] [Indexed: 01/01/2023]
Abstract
In January 2019, a group of basic, translational, and clinical investigators and patient advocates assembled in Miami, Florida, to discuss the current state of the science of low-grade serous carcinoma of the ovary or peritoneum-a rare ovarian cancer subtype that may arise de novo or following a diagnosis of serous borderline tumor. The purpose of the conference was to review current knowledge, discuss ongoing research by established researchers, and frame critical questions or issues for future directions. Following presentations and discussions, the primary objective was to initiate future collaborations, uniform database platforms, laboratory studies, and clinical trials to better understand this disease and to advance clinical care outside the boundaries of single academic institutions. This review summarizes the state of the science in five principal categories: epidemiology and patient outcomes, pathology, translational research, patient care and clinical trials, and patients' perspective.
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Affiliation(s)
- Brian Slomovitz
- Division of Gynecologic Oncology, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, United States.
| | - Charlie Gourley
- Nicola Murray Centre for Ovarian Cancer Research, Cancer Research UK Edinburgh Centre, MRC Institute of Genetics and Molecular Medicine, University of Edinburgh, UK
| | - Mark S Carey
- Department of Obstetrics and Gynecology, University of British Columbia, Vancouver, BC, Canada
| | - Anais Malpica
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Ie-Ming Shih
- Kelly Gynecologic Oncology Service, Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - David Huntsman
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Amanda N Fader
- Kelly Gynecologic Oncology Service, Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Rachel N Grisham
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, United States; Weil Cornell Medical College, New York, NY, United States
| | - Matthew Schlumbrecht
- Division of Gynecologic Oncology, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, United States
| | - Charlotte C Sun
- Division of Surgery, Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Jane Ludemann
- Cure Our Ovarian Cancer, cureourovariancancer.org, New Zealand
| | - Gail Austin Cooney
- University of Miami/JFK Medical Center Palm Beach Regional Graduate Medical Education Consortium, Hospice and Palliative Medicine Program, West Palm Beach, FL, United States
| | - Robert Coleman
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Anil K Sood
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Haider Mahdi
- Department of Obstetrics and Gynecology, Women's Health Institute, Cleveland Clinic, Cleveland, OH, United States; Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, United States
| | - Kwong K Wong
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Allan Covens
- University of Toronto, Division of Gynecologic Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - David M O'Malley
- Division of Gynecologic Oncology, Department of Obstetrics/Gynecology, The James CCC at the Wexner Medical Center-The Ohio State University College of Medicine, Columbus, OH, United States
| | - Fabrice Lecuru
- Service de Chirurgie Cancérologique Gynécologique et du Sein, Hôpital Européen George Pompidou, APHP, Paris, France; Faculté de Médecine, Université Paris Descartes, Paris, France
| | - Lauren P Cobb
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Thomas A Caputo
- Department of Obstetrics and Gynecology, Weill Cornell Medicine, New York, NY, United States
| | - Taymaa May
- Division of Gynecologic Oncology, Princess Margaret Cancer Center, University Health Network, Toronto, Ontario, Canada
| | - Marilyn Huang
- Division of Gynecologic Oncology, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, United States
| | - John Siemon
- Division of Gynecologic Oncology, Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, United States
| | | | - Isabelle Ray-Coquard
- Centre Leon Bèrard, Université Claude Bernard Lyon, Groupe d'Investigateurs Nationaux pour l'Etude des Cancers de l'Ovaire (GINECO), Lyon, France
| | - David M Gershenson
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
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Missing information in statewide and national cancer databases: Correlation with health risk factors, geographic disparities, and outcomes. Gynecol Oncol 2018; 152:119-126. [PMID: 30376964 DOI: 10.1016/j.ygyno.2018.10.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 10/17/2018] [Accepted: 10/22/2018] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The objectives of this study were to analyze factors associated with outcomes and missing data in women with epithelial ovarian cancer using institutional, state and national databases. METHODS Data were abstracted from the University of Virginia cancer registry, Virginia Department of Health (VDH) database, and Surveillance, Epidemiology, and End Results (SEER) Program and analyzed for correlations with demographics, cancer characteristics, and outcomes. Statewide spatial associations between health risk factors such as smoking, obesity, and missing grade/stage were evaluated using bivariate LiSA in Geoda. RESULTS There were 524 institutional, 3544 VDH, and 44,464 SEER cases of epithelial ovarian cancer. Institutional cases were younger, most often of white race, had increased grade 1, and decreased unknown grade and stage (all p < 0.001). Significant predictors of unknown grade were non-white race, older age, no surgery, unknown stage/stage IV, and unknown histology/adenocarcinoma. Unknown grade correlated with a significant survival disadvantage. Missing stage and grade correlated with county-level obesity and smoking, as rural regions in Southwest and Southside Virginia had high rates of health risk factors and missing stage/grade compared to urban, affluent regions in Northern Virginia. CONCLUSIONS Over a third of nationally reported cases have an unknown grade and 10-20% have an unknown stage which correlates with the worst survival. Predictors of unknown grade include insurance, age, race, smoking status, obesity, and rural setting. Missing data may represent geographical differences or disparities in cancer care available as significantly fewer cases had an unknown grade/stage at a tertiary academic medical center compared to VDH and SEER.
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Abstract
Over the past decade, the strategy for clinical trial design in making progress against epithelial cancers of the ovary/peritoneum/fallopian tube has changed dramatically. The NRG (GOG) Rare Tumor Committee has been a leader in this transformation. No longer does 'one size fit all'. Rather, separate clinical trials for rare subtypes have been developed and, in some cases, completed. An enhanced understanding of their pathologic diagnosis, molecular biology, and clinical behavior has galvanized this change. Low-grade serous carcinoma may occur de novo or following an initial diagnosis of serous tumor of low malignant potential. It is characterized by young age at diagnosis, relative chemoresistance, and prolonged survival compared with high-grade serous carcinoma. Historically, conventional chemotherapy has demonstrated very limited activity in this subtype. Hormonal therapy may provide benefit in this subtype. Preclinical studies have identified and elucidated genes and pathways-MAP kinase pathway, IGF1-R, the angiogenesis pathway, and possibly, the PI3K/AKT/mTOR pathway in low-grade serous carcinoma. To date, clinical evidence supports the activity of MEK and BRAF inhibitors and bevacizumab. Further pursuit of targeted therapy trials is clearly warranted.
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Affiliation(s)
- D M Gershenson
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, USA
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Kaldawy A, Segev Y, Lavie O, Auslender R, Sopik V, Narod SA. Low-grade serous ovarian cancer: A review. Gynecol Oncol 2016; 143:433-438. [PMID: 27581327 DOI: 10.1016/j.ygyno.2016.08.320] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 08/16/2016] [Accepted: 08/17/2016] [Indexed: 01/01/2023]
Abstract
Epithelial ovarian cancers can be divided into the more common, aggressive type II cancers and the less common, slow-growing type I cancers. Under this model, serous ovarian carcinomas can be subdivided into high-grade (type II) and low-grade (type I) tumours. The two-tier system for grading serous ovarian carcinomas is superior to more detailed grading systems in terms of predicting survival. Low-grade serous carcinomas typically present in young women and have a relatively good prognosis, despite being resistant to chemotherapy. Low-grade serous cancers have a high prevalence of KRAS and BRAF mutations, but a low prevalence of TP53 mutations (which are characteristic of high-grade serous cancers). Among women with low-grade serous ovarian cancer, the presence of a KRAS/BRAF mutation is a favorable prognostic factor. Studies of the mitogen-activated protein kinase (MAPK) inhibitor in low-grade serous ovarian cancer suggest that identifying MAPK mutations might eventually be useful in guiding treatment.
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Affiliation(s)
- Anis Kaldawy
- Department of Obstetrics and Gynecology, Carmel Medical Center, Haifa, Israel; The Ruth and Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel
| | - Yakir Segev
- Department of Obstetrics and Gynecology, Carmel Medical Center, Haifa, Israel; The Ruth and Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel
| | - Ofer Lavie
- Department of Obstetrics and Gynecology, Carmel Medical Center, Haifa, Israel; The Ruth and Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel
| | - Ron Auslender
- Department of Obstetrics and Gynecology, Carmel Medical Center, Haifa, Israel; The Ruth and Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel
| | - Victoria Sopik
- Women's College Research Institute, Familial Breast Cancer Research Unit, Toronto, Canada
| | - Steven A Narod
- Women's College Research Institute, Familial Breast Cancer Research Unit, Toronto, Canada.
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Daniels MS, Babb SA, King RH, Urbauer DL, Batte BAL, Brandt AC, Amos CI, Buchanan AH, Mutch DG, Lu KH. Underestimation of risk of a BRCA1 or BRCA2 mutation in women with high-grade serous ovarian cancer by BRCAPRO: a multi-institution study. J Clin Oncol 2014; 32:1249-55. [PMID: 24638001 DOI: 10.1200/jco.2013.50.6055] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
PURPOSE Identification of the 10% to 15% of patients with ovarian cancer who have germline BRCA1 or BRCA2 mutations is important for management of both patients and relatives. The BRCAPRO model, which estimates mutation likelihood based on personal and family cancer history, can inform genetic testing decisions. This study's purpose was to assess the accuracy of BRCAPRO in women with ovarian cancer. METHODS BRCAPRO scores were calculated for 589 patients with ovarian cancer referred for genetic counseling at three institutions. Observed mutations were compared with those predicted by BRCAPRO. Analysis of variance was used to assess factors impacting BRCAPRO accuracy. RESULTS One hundred eighty (31%) of 589 patients with ovarian cancer tested positive. At BRCAPRO scores less than 40%, more mutations were observed than expected (93 mutations observed v 34.1 mutations expected; P < .001). If patients with BRCAPRO scores less than 10% had not been tested, 51 (28%) of 180 mutations would have been missed. BRCAPRO underestimated the risk for high-grade serous ovarian cancers but overestimated the risk for other histologies (P < .001), underestimation increased as age at diagnosis decreased (P = .02), and model performance varied by institution (P = .02). CONCLUSION Patients with ovarian cancer classified as low risk by BRCAPRO are more likely to test positive than predicted. The risk of a mutation in patients with low BRCAPRO scores is high enough to warrant genetic testing. This study demonstrates that assessment of family history by a validated model cannot effectively target testing to a high-risk ovarian cancer patient population, which strongly supports the recommendation to offer BRCA1/BRCA2 genetic testing to all patients with high-grade serous ovarian cancer regardless of family history.
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Affiliation(s)
- Molly S Daniels
- Molly S. Daniels, Diana L. Urbauer, Brittany A.L. Batte, Amanda C. Brandt, Christopher I. Amos, and Karen H. Lu, The University of Texas MD Anderson Cancer Center, Houston, TX; Sheri A. Babb and David G. Mutch, Washington University School of Medicine, St Louis, MO; Robin H. King and Adam H. Buchanan, Duke University, Durham, NC
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Romero I, Sun CC, Wong KK, Bast RC, Gershenson DM. Low-grade serous carcinoma: New concepts and emerging therapies. Gynecol Oncol 2013; 130:660-6. [DOI: 10.1016/j.ygyno.2013.05.021] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 05/09/2013] [Accepted: 05/16/2013] [Indexed: 11/29/2022]
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Abstract
Although most gynecologic malignancies are sporadic, hereditary cancer syndromes cause a substantial portion of these cancers. Given that the diagnosis of these syndromes has prognostic and therapeutic implications for the patient, as well as preventive implications for her family members, genetic testing is now an accepted part of the management of the patient who has gynecologic cancer.
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Affiliation(s)
- Laura L Holman
- Department of Gynecologic Oncology and Reproductive Medicine, The University of Texas MD Anderson Cancer Center, Houston, 77030-3721, USA
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