MP0533在急性白血病臨床試驗中顯示正面成果

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Molecular Partners發佈MP0533在急性髓性白血病(AML)臨床試驗中的正面數據
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2025年6月11日 16:00 ET | 來源:Molecular Partners

* _在正在進行的第1/2a期試驗中,8名可評估的R/R AML患者中有3名在第一周期後有反應,其中1名患者的反應持續超過6個月_
* _所有組別均顯示出可接受的安全性,尤其是第8組的劑量增加更為明顯_
* _數據支持進一步劑量優化,以最大化MP0533的治療效果,目前第9組的劑量調整正在進行中_

瑞士蘇黎世-施利倫和美國康科德,2025年6月11日(GLOBE NEWSWIRE)—— **根據第53條LR的臨時公告**,Molecular Partners AG(SIX: MOLN; NASDAQ: MOLN)是一家臨床階段的生物技術公司,專注於開發一種新型的定制蛋白藥物,稱為DARPin治療(“Molecular Partners”或“公司”)。今天在2025年6月12日至15日於米蘭舉行的第30屆歐洲血液學會(EHA)大會上,該公司發佈了有關MP0533在復發/難治性急性髓性白血病(AML)中的第1/2a期臨床試驗的最新正面數據。

海報《正在進行的MP0533第1/2a期研究的更新結果,針對復發/難治性AML或MDS/AML患者的四特異性設計的Ankyrin重複蛋白(DARPin;CD33 x CD123 x CD70 x CD3)》概述了MP0533的加速劑量增加方案(更陡且更快)對第8組的暴露和臨床反應的影響,為進一步優化第9組的劑量方案提供了依據。

第8組的數據顯示,8名可評估患者中有3名(超過30%)在第一周期後達到了臨床反應,其中1名患者達到了完全反應,2名患者的最佳總反應為完全反應伴有部分血液學恢復。兩名患者的反應持續超過3個月,其中一名患者在數據截止時(2025年4月14日)仍在接受治療,反應持續超過6個月。第8組的起始劑量高於第1-7組,並增加了一天的劑量,使目標劑量在第12天達成,而之前則是在第15天。

第8組的數據顯示,患者在第一周期內通過加速劑量增加方案維持了更長時間的MP0533暴露,並達到了預測的治療範圍。數據顯示,患者的相關暴露超過4天,8名患者中有5名顯示出超過50%的爆炸細胞減少。MP0533在第8組的目標劑量調整後顯示出可接受的安全性。

“我對最近一組患者中觀察到的反應數量和反應程度感到鼓舞,並已開始納入使用新的‘密集給藥’計劃的患者,旨在充分發揮該產品在我們的R/R AML患者中的潛力。”法國圖盧茲癌症研究所(Institut Universitaire du Cancer Toulouse – Oncopole)的首席研究員皮埃爾·博里斯醫生(Pierre Bories, MD, PhD)表示。

在第1-7組中,劑量增加到第15天達到目標劑量,預測的治療劑量暴露僅限於第一周期的約2天,這可能是由於目標介導的藥物沉積。儘管之前的治療方案在約30%的患者中顯示出初步的爆炸細胞減少,但反應仍然有限。

基於第8組觀察到的鼓舞人心的抗腫瘤活性,第9組及以後的修訂方案包括進一步加速劑量增加,以更快地達到治療相關劑量,增加給藥頻率以提高MP0533的累積暴露,並引入抗CD20的預處理,以減少暴露損失,目的是進一步提高患者的反應深度和持續時間。

第9組目前正在給藥,修訂劑量方案的初步數據預計將在2025年下半年公布。此外,未來的研究組將評估MP0533與阿扎胞苷/維奈克拉克的聯合使用。

演示詳情:

正在進行的MP0533第1/2a期研究的更新結果,針對復發/難治性AML或MDS/AML患者的四特異性設計的
Ankyrin重複蛋白(DARPin;CD33 x CD123 x CD70 x CD3)
時間:6月13日,18:30 – 19:30 CEST(海報會議1)

關於Molecular Partners AG
Molecular Partners AG(SIX: MOLN,NASDAQ: MOLN)是一家臨床階段的生物技術公司,致力於設計和開發DARPin治療,用於其他藥物模式無法輕易解決的醫療挑戰。該公司在各個階段的臨床和前臨床開發中都有項目,腫瘤學是其主要焦點。Molecular Partners利用DARPins的優勢,通過其專有項目以及與領先製藥公司的合作,為患者提供獨特的解決方案。Molecular Partners成立於2004年,總部位於瑞士蘇黎世和美國康科德。欲了解更多信息,請訪問[www.molecularpartners.com](https://www.molecularpartners.com)

在這篇報導中,Molecular Partners顯示了他們在急性髓性白血病治療中的潛力,尤其是MP0533的最新臨床試驗數據。這些結果不僅顯示了該藥物的有效性,還強調了劑量調整對治療反應的重要性。隨著第9組的進一步研究,未來的數據將可能為AML患者帶來新的治療希望。這不僅是對Molecular Partners的信心增強,也為整個生物技術行業提供了新的思考方向,如何通過創新的劑量管理來提升治療效果,這或許能成為未來癌症治療的一個重要趨勢。

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