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Predictors of optimal cytoreduction in patients with newly diagnosed advanced-stage epithelial ovarian cancer: Time to incorporate laparoscopic assessment into the standard of care.

ABSTRACT: The standard management of advanced-stage ovarian cancer has been a subject of debate, and much controversy remains as to whether patients should have primary cytoreductive surgery followed by chemotherapy or neoadjuvant chemotherapy followed by interval cytoreductive surgery. In addition, there is increasing evidence that the patients who ultimately gain the most benefit from surgery are those with no residual disease at the completion of surgery (R0 resection). Therefore, to determine the best therapeutic strategy (primary cytoreductive surgery vs. neoadjuvant chemotherapy) for an individual patient, it is critically important to estimate the likelihood that primary cytoreductive surgery will leave no macroscopic residual disease. A number of studies have evaluated the use of serologic markers, such as CA-125, and imaging modalities, such as computed tomography (CT) or positron emission tomography/CT (PET/CT), to determine which patients are ideal candidates for primary cytoreductive surgery. More recently, laparoscopy has been proposed as a reliable predictor of R0 resection. In this report, we provide a review of the existing literature on the proposed criteria to predict the outcome of cytoreductive surgery and the role of laparoscopy-based scores in the management of advanced ovarian cancer.

SUBMITTER: Gomez-Hidalgo NR

PROVIDER: S-EPMC4825172 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature

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Predictors of optimal cytoreduction in patients with newly diagnosed advanced-stage epithelial ovarian cancer: Time to incorporate laparoscopic assessment into the standard of care.

Gómez-Hidalgo Natalia Rodriguez NR Martinez-Cannon Bertha Alejandra BA Nick Alpa M AM Lu Karen H KH Sood Anil K AK Coleman Robert L RL Ramirez Pedro T PT

Gynecologic oncology 20150328 3

The standard management of advanced-stage ovarian cancer has been a subject of debate, and much controversy remains as to whether patients should have primary cytoreductive surgery followed by chemotherapy or neoadjuvant chemotherapy followed by interval cytoreductive surgery. In addition, there is increasing evidence that the patients who ultimately gain the most benefit from surgery are those with no residual disease at the completion of surgery (R0 resection). Therefore, to determine the best ...[more]

PMID: 25827290

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Project description:There is no clear consensus regarding systemic treatment of early-stage ovarian cancer (OC). Clinical trials are challenging because of the relatively low incidence and good prognosis. Initial results of the International Collaborative Ovarian Neoplasm (ICON)1 trial demonstrated benefit in both overall survival (OS) and recurrence-free survival (RFS) with adjuvant chemotherapy. We report results of 10-year follow-up to establish whether benefits are maintained longer term and discuss how this and other available evidence from randomised trials can be used to guide treatment options regarding the need for, and choice of, adjuvant chemotherapy regimen.ICON1 recruited women with OC following primary surgery in whom there was uncertainty as to whether adjuvant chemotherapy was indicated. Patients were randomly assigned to adjuvant or no adjuvant chemotherapy. Platinum-based chemotherapy was recommended and 87% received single-agent carboplatin. Analyses of long-term treatment benefits and interaction with risk groups were carried out. A high-risk group of women was defined with stage 1B/1C grade 2/3, any stage 1 grade 3 or clear-cell histology.With a median follow-up of 10 years, the estimated hazard ratio (HR) for RFS was 0.69 [95% confidence interval (CI) 0.51-0.94, P = 0.02] and OS 0.71 (95% CI 0.52-0.98, P = 0.04) in favour of chemotherapy. In absolute terms, there was a 10% (60%-70%) improvement in RFS and a 9% (64%-73%) improvement in OS; the benefit of chemotherapy might be greater in high-risk disease (18% improvement in OS). Uncertainty remains about the optimal chemotherapy regimen. The only randomised trial data available are from a subset of 120 stage 1 patients in ICON3 where the treatment difference, comparing carboplatin with carboplatin/paclitaxel was estimated with relatively wide CIs [progression-free survival HR = 0.71 (95% CI 0.39-1.32) and OS HR = 0.98 (95% CI 0.49-1.93)].Extended follow-up from ICON1 confirms that adjuvant chemotherapy should be offered to women with early-stage OC, particularly those with high-risk disease.ISRCTN11916376 for ICON1 and ISRCTN57157825 for ICON3.

Dataset Information

Predictors of optimal cytoreduction in patients with newly diagnosed advanced-stage epithelial ovarian cancer: Time to incorporate laparoscopic assessment into the standard of care.

Publications

Predictors of optimal cytoreduction in patients with newly diagnosed advanced-stage epithelial ovarian cancer: Time to incorporate laparoscopic assessment into the standard of care.

Similar Datasets

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