強生宣佈中國首個且目前唯一治療BRCA突變轉移性去勢抵抗性前列腺癌的複方製劑澤倍珂®在華獲批[1]

澤倍珂®是每日一次的口服複方製劑,用於聯合潑尼鬆或潑尼鬆龍一線治療攜帶BRCA1/2突變的轉移性去勢抵抗性前列腺癌成人患者,臨牀證實其相較標準治療可顯著延長影像學無進展生存期[2]。

北京2024年10月21日/美通社/ -- 強生公司今日宣佈,旗下創新治療藥物澤倍珂®(尼拉帕利阿比特龍片)正式獲得國家藥品監督管理局批准。作爲目前國內首個且唯一獲批的雙效複方製劑[1],澤倍珂®聯合潑尼鬆或潑尼鬆龍用於治療攜帶胚系和/或體系BRCA基因突變的轉移性去勢抵抗性前列腺癌成人患者(mCRPC)[3]。

澤倍珂®是BRCA1/2突變mCRPC成人患者的一線靶向治療方案[4]。作爲一種高選擇性聚腺苷二磷酸核糖聚合酶(PARP)抑制劑[5],尼拉帕利和醋酸阿比特龍的組合聯合潑尼鬆或潑尼鬆龍,能夠靶向mCRPC患者的兩種致癌驅動因素——雄激素受體軸和BRCA1/2突變[3],[6],[7]。經臨牀驗證,澤倍珂®聯合潑尼鬆或潑尼鬆龍可顯著延長BRCA1/2突變mCRPC患者的影像學無進展生存期(rPFS)。此外,與安慰劑相比,尼拉帕利還顯示出總體生存 (OS)改善的趨勢,可顯著延長至症狀進展時間(TSP)和至細胞毒性化療起始時間(TCC),同時並維持了患者的生活質量[8]。

近年來,中國前列腺癌的發病率顯著上升。據國家癌症中心最新發布的2022年度中國惡性腫瘤疾病負擔報告顯示,我國前列腺癌的發病率爲每10萬人中18.61例,已成爲男性泌尿生殖系統中最常見的腫瘤[9]。儘管隨着我國醫療水平的提高,前列腺癌的治療已經取得一定進展,但是mCRPC仍然是一種致命的疾病[10],[11]。據統計,大約10-15%的mCRPC患者攜帶BRCA1/2基因突變[12],[13],而攜帶BRCA1/2基因突變的前列腺癌往往惡性程度更高,可能具有更強的侵襲性和更高的轉移性疾病比例,患者的生存結局更差[14],[15],[16],[17],[18]。因此,NCCN和EAU等國內外權威指南均推薦對mCRPC患者進行基因檢測,以提供更加精準的治療決策,改善患者臨牀獲益[19],[20]。

強生創新制藥中國區總裁Cherry Huang女士表示:"澤倍珂®的獲批再次印證了前列腺癌精準治療時代的到來,突顯了基因檢測在前列腺癌診療中的重要意義。長期以來,強生始終關注不同疾病階段前列腺癌患者的切實需求,持續引入創新療法及產品組合,從前列腺癌的晚期治療,進一步覆蓋到更早期階段。同時,我們也希望讓更多患者實現前列腺癌全程管理,在早期、規範化、足療程的診療中獲得更長生存。"

此次澤倍珂®的獲批是基於一項隨機、雙盲、安慰劑對照的多中心III期MAGNITUDE研究。結果顯示,在BRCA突變亞組中,尼拉帕利聯合醋酸阿比特龍加潑尼鬆或潑尼鬆龍(AAP)顯著降低影像學進展或死亡風險達47%(rPFS, HR=0.53;95%CI 0.36,0.79;p=0.0014)[3]。在第二次期中分析時,中位隨訪時間爲24.8個月,與安慰劑聯合AAP的10.9個月相比,尼拉帕利聯合AAP治療BRCA突變亞組的中位rPFS爲19.5個月(HR,0.55[95%(CI),0.39-0.78])[21]。此外,尼拉帕利在至症狀進展時間(TSP)上有統計學意義上的獲益,與對照組相比,症狀進展風險顯著降低了46%(未達到中位數與23.6個月相比;HR=0.54,95% CI:0.35-0.85;P=0.0071)[3]。值得注意的是,試驗還觀察到,接受尼拉帕利聯合APP治療的BRCA1/2 基因突變 mCRPC 患者與接受安慰劑聯合AAP治療的患者相比,尼拉帕利在至細胞毒性化療起始時間(TCC)上達到統計學意義和臨牀意義的改善(中位時間未達到 vs. 27.3 個月;HR:0.56,95% CI:0.35-0.90; p=0.0152)[3]。

在安全性方面,研究顯示尼拉帕利和AAP聯合用藥與單藥的已知安全性一致。該聯合療法最常見的不良反應(>10%)包括肌肉骨骼疼痛、疲乏、便秘、高血壓、噁心、水腫、呼吸困難等[3]。

[1] 強生公司基於《化學藥品註冊分類及申報資料要求》中2類(2.3)改良型新藥新複方製劑的類別遞交申請並獲得了審批。2類:境內外均未上市的改良型新藥。指在已知活性成份的基礎上,對其結構、劑型、處方工藝、給藥途徑、適應症等進行優化,且具有明顯臨牀優勢的藥品。2.3含有已知活性成份的新複方製劑,且具有明顯臨牀優勢。

[2]Sumanasuriya S & De Bono J. Treatment of Advanced Prostate Cancer—A Review of Current Therapies and Future Promise. Cold Spring Harb Perspect Med. 2018;8(6): a030635.

[3]AKEEGA®China Prescribing Information, August 2024

[4]K. N. Chi et al. Niraparib plus abiraterone acetate with prednisone in patients with metastatic castration-resistant prostate cancer and homologous recombination repair gene alterations: second interim analysis of the randomized phase III MAGNITUDE trial. Ann Oncol 2023 Sep;34(9):772-782.

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[6]Clinicaltrials.gov. A Study of Niraparib in Combination With Abiraterone Acetate and Prednisone Versus Abiraterone Acetate and Prednisone for the Treatment of Participants With Deleterious Germline or Somatic Homologous Recombination Repair (HRR) Gene-Mutated Metastatic Castration Sensitive Prostate Cancer (mCSPC) (AMPLITUDE).Available at: https://clinicaltrials.gov/ct2/show/NCT04497844. Last accessed: April 2023.

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[20]EAU-EANM-ESTRO-ESUR-ISUP-SIOG Guidelines on Prostate Cancer 2023.

[21]Eleni Efstathiou,et al.2023ASCO GU abstract 170.