A phase 2 study of anastrozole in patients with oestrogen receptor and/progesterone receptor positive recurrent/metastatic granulosa cell tumours/sex-cord stromal tumours of the ovary: The PARAGON/ANZGOG 0903 trial

Hormonal therapies are commonly prescribed to patients with metastatic granulosa cell tumours (GCT), based on high response rates in small retrospective studies. Aromatase inhibitors (AIs) are reported to have high response rates and an accepted treatment option. We report the results of a phase 2 t...

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Veröffentlicht in:Gynecologic oncology 2021-10, Vol.163 (1), p.72-78
Hauptverfasser: Banerjee, Susana N., Tang, Monica, O'Connell, Rachel L., Sjoquist, Katrin, Clamp, Andrew R., Millan, David, Nottley, Steven, Lord, Rosemary, Mullassery, Vinod Menon, Hall, Marcia, Gourley, Charlie, Bonaventura, Tony, Goh, Jeffrey C., Sykes, Peter, Grant, Peter T., McNally, Orla, Alexander, Laura, Kelly, Caroline, Carty, Karen, Divers, Laura, Bradshaw, N., Edmondson, Richard J., Friedlander, Michael
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container_end_page 78
container_issue 1
container_start_page 72
container_title Gynecologic oncology
container_volume 163
creator Banerjee, Susana N.
Tang, Monica
O'Connell, Rachel L.
Sjoquist, Katrin
Clamp, Andrew R.
Millan, David
Nottley, Steven
Lord, Rosemary
Mullassery, Vinod Menon
Hall, Marcia
Gourley, Charlie
Bonaventura, Tony
Goh, Jeffrey C.
Sykes, Peter
Grant, Peter T.
McNally, Orla
Alexander, Laura
Kelly, Caroline
Carty, Karen
Divers, Laura
Bradshaw, N.
Edmondson, Richard J.
Friedlander, Michael
description Hormonal therapies are commonly prescribed to patients with metastatic granulosa cell tumours (GCT), based on high response rates in small retrospective studies. Aromatase inhibitors (AIs) are reported to have high response rates and an accepted treatment option. We report the results of a phase 2 trial of an AI in recurrent/metastatic GCTs. 41 patients with recurrent ER/PR + ve GCT received anastrozole 1 mg daily until progression or unacceptable toxicity. The primary endpoint was clinical benefit rate (CBR) at 12 weeks, evaluated by RECIST1.1 criteria. Secondary endpoints included progression-free survival (PFS), CBR duration, quality of life and toxicity. The CBR at 12 weeks in 38 evaluable patients was 78.9%, which included one (2.6%; 95% CI: 0.5–13.5%) partial response and 76.3% stable disease. Two additional patients without measurable disease were stable, based on inhibin. Median PFS was 8.6 m (95% CI 5.5–13.5 m). There were delayed responses observed after 12 weeks with a total of 4 pts. (10.5%; 95% CI 4.2%–24.1%) with a RECIST partial response; 23 (59%) patients were progression-free at 6 months. The adverse effects were predominantly low grade. This is the first prospective trial of hormonal therapy in GCTs. Although there was a high CBR, the objective response rate to anastrozole was much lower than the pooled response rates of >70% to AIs reported in most retrospective series and case reports. PARAGON demonstrates the importance of prospective trials in rare cancers and the need to reconsider the role of AIs as single agents in GCTs. •Granulosa cell tumours are rare and there are no prospective trials of hormonal therapies.•High response rates have been reported with aromatase inhibitors in case reports.•PARAGON is a prospective study of anastrozole in granulosa cell tumours.•The objective response rate was 10.5%, which is lower than reported in the literature.
doi_str_mv 10.1016/j.ygyno.2021.07.024
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Aromatase inhibitors (AIs) are reported to have high response rates and an accepted treatment option. We report the results of a phase 2 trial of an AI in recurrent/metastatic GCTs. 41 patients with recurrent ER/PR + ve GCT received anastrozole 1 mg daily until progression or unacceptable toxicity. The primary endpoint was clinical benefit rate (CBR) at 12 weeks, evaluated by RECIST1.1 criteria. Secondary endpoints included progression-free survival (PFS), CBR duration, quality of life and toxicity. The CBR at 12 weeks in 38 evaluable patients was 78.9%, which included one (2.6%; 95% CI: 0.5–13.5%) partial response and 76.3% stable disease. Two additional patients without measurable disease were stable, based on inhibin. Median PFS was 8.6 m (95% CI 5.5–13.5 m). There were delayed responses observed after 12 weeks with a total of 4 pts. (10.5%; 95% CI 4.2%–24.1%) with a RECIST partial response; 23 (59%) patients were progression-free at 6 months. The adverse effects were predominantly low grade. This is the first prospective trial of hormonal therapy in GCTs. Although there was a high CBR, the objective response rate to anastrozole was much lower than the pooled response rates of &gt;70% to AIs reported in most retrospective series and case reports. PARAGON demonstrates the importance of prospective trials in rare cancers and the need to reconsider the role of AIs as single agents in GCTs. •Granulosa cell tumours are rare and there are no prospective trials of hormonal therapies.•High response rates have been reported with aromatase inhibitors in case reports.•PARAGON is a prospective study of anastrozole in granulosa cell tumours.•The objective response rate was 10.5%, which is lower than reported in the literature.</description><identifier>ISSN: 0090-8258</identifier><identifier>EISSN: 1095-6859</identifier><identifier>DOI: 10.1016/j.ygyno.2021.07.024</identifier><identifier>PMID: 34412908</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>Adult ; Aged ; Anastrozole - therapeutic use ; Aromatase inhibitors ; Clinical benefit ; Female ; Granulosa Cell Tumor - chemistry ; Granulosa Cell Tumor - drug therapy ; Granulosa Cell Tumor - mortality ; Granulosa cell tumour ovary ; Humans ; Middle Aged ; Neoplasm Recurrence, Local - chemistry ; Neoplasm Recurrence, Local - drug therapy ; Neoplasm Recurrence, Local - mortality ; Ovarian Neoplasms - chemistry ; Ovarian Neoplasms - drug therapy ; Ovarian Neoplasms - mortality ; Quality of Life ; Receptors, Estrogen - analysis ; Receptors, Progesterone - analysis ; Response ; Sex Cord-Gonadal Stromal Tumors - chemistry ; Sex Cord-Gonadal Stromal Tumors - drug therapy ; Sex Cord-Gonadal Stromal Tumors - mortality</subject><ispartof>Gynecologic oncology, 2021-10, Vol.163 (1), p.72-78</ispartof><rights>2021</rights><rights>Copyright © 2021. 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The adverse effects were predominantly low grade. This is the first prospective trial of hormonal therapy in GCTs. Although there was a high CBR, the objective response rate to anastrozole was much lower than the pooled response rates of &gt;70% to AIs reported in most retrospective series and case reports. PARAGON demonstrates the importance of prospective trials in rare cancers and the need to reconsider the role of AIs as single agents in GCTs. •Granulosa cell tumours are rare and there are no prospective trials of hormonal therapies.•High response rates have been reported with aromatase inhibitors in case reports.•PARAGON is a prospective study of anastrozole in granulosa cell tumours.•The objective response rate was 10.5%, which is lower than reported in the literature.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>34412908</pmid><doi>10.1016/j.ygyno.2021.07.024</doi><tpages>7</tpages></addata></record>
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subjects Adult
Aged
Anastrozole - therapeutic use
Aromatase inhibitors
Clinical benefit
Female
Granulosa Cell Tumor - chemistry
Granulosa Cell Tumor - drug therapy
Granulosa Cell Tumor - mortality
Granulosa cell tumour ovary
Humans
Middle Aged
Neoplasm Recurrence, Local - chemistry
Neoplasm Recurrence, Local - drug therapy
Neoplasm Recurrence, Local - mortality
Ovarian Neoplasms - chemistry
Ovarian Neoplasms - drug therapy
Ovarian Neoplasms - mortality
Quality of Life
Receptors, Estrogen - analysis
Receptors, Progesterone - analysis
Response
Sex Cord-Gonadal Stromal Tumors - chemistry
Sex Cord-Gonadal Stromal Tumors - drug therapy
Sex Cord-Gonadal Stromal Tumors - mortality
title A phase 2 study of anastrozole in patients with oestrogen receptor and/progesterone receptor positive recurrent/metastatic granulosa cell tumours/sex-cord stromal tumours of the ovary: The PARAGON/ANZGOG 0903 trial
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