新藥Rademikibart顯著改善中重度哮喘患者肺功能




Connect Biopharma宣布全球第二期試驗Rademikibart在中度至重度難控制哮喘患者中的積極數據發表

2025年3月31日16:05 ET | 來源:Connect Biopharma Holdings Limited
– Rademikibart顯示出快速的作用起始,並在一週內觀察到肺功能顯著改善,並持續至24週 –

– 在接受Rademikibart治療24週的嗜酸性粒細胞驅動的哮喘患者(≥300嗜酸性粒細胞/µL)中,強制呼氣量與安慰劑相比的平均差異為+420 mL,這是生物製劑中報告的最大增幅之一 –

聖地牙哥,2025年3月31日(GLOBE NEWSWIRE)—— Connect Biopharma Holdings Limited(納斯達克:CNTB)(Connect Biopharma)是一家臨床階段的生物製藥公司,專注於改善急性和慢性哮喘及慢性阻塞性肺病(COPD)的護理,今天宣布在《美國呼吸與重症醫學雜誌》(AJRCCM)上在線發表了Rademikibart在中度至重度難控制哮喘患者中的全球第二期試驗的積極結果。這些數據突顯了Rademikibart作為一種新型生物治療選擇的潛力,顯示出快速的作用起始、持續的強制呼氣量(FEV1)改善以及臨床上重要的年度加重率減少。

在全球第二期試驗(CBP-201-WW002)中,322名中度至重度持續性難控制哮喘的成人患者被隨機分為兩組Rademikibart(每兩週150 mg或300 mg,隨後為600 mg的加載劑量)或安慰劑,皮下給藥,持續24週。三分之二的隨機患者在美國接受治療。根據預支氣管擴張劑FEV1的主要終點,肺功能的改善具有臨床意義並且高度統計顯著,從600 mg的加載劑量後的第一週開始,並持續至24週的治療:

– 在所有高嗜酸性粒細胞計數的患者亞組中(即基線≥150細胞/µL的亞組),兩個Rademikibart劑量組均觀察到FEV1的顯著增加。
– 在第24週,接受300 mg Rademikibart的嗜酸性粒細胞≥300細胞/µL的患者(N=40)中,FEV1與安慰劑相比的平均差異為+420 mL;這些患者在第1週的FEV1改善為+312 mL。
– 與改善的氣道功能一致,接受Rademikibart的患者急性加重事件(214名患者中發生24次)顯著少於接受安慰劑的患者(108名患者中發生26次)。
– 使用五個問題的哮喘控制問卷(ACQ-5)測量的哮喘控制在第2週迅速改善,並在整體人群中持續改善至第24週,與安慰劑相比,兩個Rademikibart劑量均達到統計顯著性。
– Rademikibart的耐受性良好,大多數治療相關的不良事件(TEAEs)為輕度或中度,且沒有嚴重的TEAEs與Rademikibart治療相關。
– 在研究中未報告Rademikibart的嗜酸性粒細胞增多相關TEAEs,且在基線嗜酸性粒細胞超過500細胞/µL的接受Rademikibart的患者中,沒有患者的嗜酸性粒細胞峰值水平超過3000細胞/µL。這與在該患者亞組中,dupilumab臨床試驗中報告的近13%相比,表現非常良好。

根據這項試驗的數據,Connect Biopharma之前已在與美國食品藥品監督管理局(FDA)肺病、過敏和重症護理部門的第二期結束會議中獲得一致意見,將Rademikibart推進至第三期試驗,以進行哮喘的維持治療。

評論與分析

這項研究顯示Rademikibart在治療中度至重度難控制哮喘方面的潛力,特別是在嗜酸性粒細胞驅動的患者中,提供了令人鼓舞的數據。值得注意的是,這些數據不僅顯示出肺功能的顯著改善,還強調了Rademikibart的安全性,特別是在沒有出現過度嗜酸性粒細胞增多的情況下,這是許多生物製劑所面臨的挑戰。

此外,Connect Biopharma的CEO Barry Quart提到,Rademikibart在急性加重後的四週內可能會有顯著的臨床效益,這一觀點值得深入探討。急性加重是哮喘和COPD患者的一個關鍵時期,這時候的治療選擇相對有限,Rademikibart的獨特臨床特徵可能會為這些患者提供新的希望。

總體來看,這項研究的結果不僅為Rademikibart的未來臨床應用鋪平了道路,也為哮喘治療領域提供了新的思路。隨著進一步的研究和數據的發表,Rademikibart有潛力成為一種改變遊戲規則的治療選擇,特別是在面對當前標準護理無法滿足的需求時。

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