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        Contrasting clinical characteristics and treatment patterns in women with newly diagnosed advanced-stage epithelial ovarian cancer in Australia, South Korea and Taiwan

        Hung-Hsueh Chou,Sian Fereday,Anna DeFazio,Chih-Long Chang,David Bowtell,Heng-Cheng Hsu,Nadia Traficante,Soo Young Jeong,Wen-Fang Cheng,Dinuka Ariyarantne,Australian Ovarian Cancer Study Group,Teresa T 대한부인종양학회 2023 Journal of Gynecologic Oncology Vol.34 No.1

        Objective: The real-world INFORM study analyzed sociodemographics, treatment patterns and clinical outcomes for patients with newly diagnosed advanced epithelial ovarian cancer (EOC) in Australia, South Korea (S.Korea) and Taiwan preceding incorporation of poly(ADP-ribose) polymerase inhibitors into clinical practice. Methods: Retrospective data from patients diagnosed with EOC (high-grade serous EOC for Taiwan) between January 2014 and December 2018 with ≥12 months follow-up from diagnosis were analyzed descriptively. Survival was evaluated by Kaplan-Meier with two-sided 95% confidence interval (CI). Results: Of the 987 patients (Australia, 223; S.Korea, 513; Taiwan, 251), 98% received platinum-based chemotherapy (CT). In S.Korea and Taiwan 76.0% and 78.9% respectively underwent primary cytoreductive surgery; in Australia, 56.5% had interval debulking surgery. Bevacizumab was included in primary/maintenance therapy for 22.4%, 14.6% and 6.8% of patients in Australia, S.Korea and Taiwan, respectively. Patients receiving bevacizumab were high-risk (reimbursement policy) and achieved similar real-world progression-free survival (PFS) compared with CT only. Overall, the median real-world PFS (months; 95% CI) was similar across Australia (16.0 [14.63–18.08]), S.Korea (17.7 [16.18–19.27]) and Taiwan (19.1 [17.56–22.29]). Conclusion: This study reveals poor prognosis despite differences in demographics and treatment patterns for patients with EOC across Asia-Pacific suggesting the need for biomarker-driven novel therapies to improve outcomes.

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        PARAGON (ANZGOG-0903): a phase 2 study of anastrozole in asymptomatic patients with estrogen and progesterone receptor-positive recurrent ovarian cancer and CA125 progression

        Peey-Sei Kok,Philip Beale,Rachel L. O'Connell,Peter Grant,Tony Bonaventura,James Scurry,Yoland Antill,Jeffrey Goh,Katrin Sjoquist,Anna DeFazio,Cristina Mapagu,Frederic Amant,Michael Friedlander,PARAGO 대한부인종양학회 2019 Journal of Gynecologic Oncology Vol.30 No.5

        Objective: A subset of patients with recurrent ovarian cancer (ROC) may benefit from antiestrogen therapy with higher response rates reported in tumors that are strongly estrogen receptor (ER)-positive (ER+). PARAGON is a basket trial that incorporates 7 phase 2 trials investigating the activity of anastrozole in patients with ER+ and/or progesterone receptor (PR)-positive (PR+) recurrent/metastatic gynecological cancers. Methods: Postmenopausal women with ER+ and/or PR+ ROC, who were asymptomatic and had cancer antigen 125 (CA125) progression after response to first line chemotherapy, where chemotherapy was not clinically indicated. Patients received anastrozole 1 mg daily until progression or unacceptable toxicity. Results: Fifty-four patients were enrolled (52 evaluable). Clinical benefit at three months (primary endpoint) was observed in 18 patients (34.6%; 95% confidence interval [CI]=23%–48%). Median progression-free survival (PFS) was 2.7 months (95% CI=2.1–3.1). The median duration of clinical benefit was 6.5 months (95% CI=2.8–11.7). Most patients progressed within 6 months of starting anastrozole but 12 (22%) continued treatment for longer than 6 months. Anastrozole was well tolerated. In the exploratory analysis, ER histoscores and the intensity of ER staining did not correlate with clinical benefit rate or PFS. Conclusion: A subset of asymptomatic patients with ER+ and/or PR+ ROC and CA125 progression had durable clinical benefit on anastrozole, with acceptable toxicity. Anastrozole may delay symptomatic progression and the time to subsequent chemotherapy. The future challenge is to identify the subset of patients most likely to benefit from an aromatase inhibitor and whether the clinical benefit could be increased by the addition of other agents.

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