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復宏漢霖-B(02696.HK)就HLX35與BINACEA訂立許可及共同開發協議 商業里程碑款項合計不超6.7億美元
格隆匯 11-25 16:55

格隆匯11月25日丨復宏漢霖-B(02696.HK)公佈,公司已於2020年11月25日與Binacea pharma Inc.訂立許可及共同開發協議,據此,公司同意基於相關知識產權,就HLX35(公司自主研發的針對EGFR和4-1BB雙靶點的雙特異性抗體)向Binacea授出一項許可,供其於除中國大陸、香港特別行政區、澳門特別行政區及台灣地區以外的全球範圍就所有與任何適應症相關的疾病或失調的人類的治療、預防、治癒或管理內研究、開發、生產及商業化許可產品。

倘HLX35於美國、歐盟或日本完成1期臨牀試驗,Binacea將有權將許可產品的相關知識產權進行再許可,以持續開發許可產品,前提是相關的再許可被許可方同意遵守Binacea於協議項下的責任。

公司將負責許可產品的臨牀前研究。訂約方協定,公司與Binacea將各自按50%的比例承擔因公司進行臨牀前研究而產生的成本及開支。Binacea將負責HLX35在許可區域及許可領域內的臨牀研究、監管備案、生產及商業化。公司及Binacea亦同意共同開發經雙方書面同意的其他初期研究產品。

Binacea將向公司支付:(a)有關HLX35的首付款500萬美元;(b)監管里程碑款項合計不超過9300萬美元,基於許可區域內各項註冊進展支付;(c)商業里程碑款項合計不超過6.7億美元,基於許可區域內許可產品的年度淨銷售額支付;(d)以淨銷售額的8%到10%計的特許權使用費,具體取決於許可區域內許可產品的淨銷售額水平。

據悉,HLX35是公司自主研發的針對EGFR(表皮細胞生長因子受體)與4-1BB(即CD137,屬腫瘤壞死因子受體家族的成員)雙靶點的雙特異性抗體。根據臨牀前的動物實驗數據顯示,雙抗抗體藥可有效將兩個靶點的優勢合併在一起,可以結合在腫瘤表面的EGFR分子上,阻斷腫瘤信號傳導通路,殺死腫瘤細胞;同時還可以結合免疫細胞(T細胞和NK細胞)表面上的4-1BB免疫激活分子,使更多的免疫細胞聚集在腫瘤周圍,並刺激微環境中免疫細胞的活性,從而協同殺死腫瘤細胞,提高療效。HLX35擬廣泛用於治療結直腸癌和頭頸部腫瘤及其他實體腫瘤治療領域。

Binacea為一家於2020年2月在開曼羣島註冊成立的有限公司,其董事會主席為Weijun Feng先生。Binacea主要從事雙特異性抗體、多特異性抗體和融合蛋白的研究、開發及銷售。

公司表示,本次與Binacea合作將有利於推進公司雙特異性抗體產品的研發進展,並通過共同開發和權利許可的方式擴大集團創新產品的可及性和國際影響力。

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