Arrowhead新藥雙倍減肥效果股價飆升

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Arrowhead股價飆升 肥胖藥物臨床數據顯示體重減少翻倍

Arrowhead Pharmaceuticals(納斯達克代號:ARWR)股價近日急升16%,源於公司公布其基於RNA干擾技術的肥胖治療藥物,於肥胖兼患糖尿病患者身上展現出顯著的體重減輕效果。

公司報告指出,其實驗性藥物ARO-INHBE與tirzepatide聯合使用,在第16週達致平均9.4%的體重減少,約為單用tirzepatide時4.8%減重的兩倍。該組合療法在脂肪減少方面亦展現約三倍的提升,遠超tirzepatide單藥治療。

ARO-INHBE聯合tirzepatide使用時,內臟脂肪減少23.2%、總脂肪減少15.4%、肝臟脂肪更減少高達76.7%。作為單藥療法,ARO-INHBE於第16週單劑量使用時平均減少內臟脂肪9.9%,第24週雙劑量使用時,較安慰劑調整後減少達15.6%。

此外,Arrowhead亦公布另一RNA干擾療法ARO-ALK7的數據,該療法為首個在人類身上證實可抑制脂肪細胞相關基因表達的RNAi藥物。ARO-ALK7平均可降低88%的ALK7 mRNA,最高減幅達94%。單藥使用時於第8週單劑量後,較安慰劑調整的內臟脂肪減少率達14.1%。

都柏林大學醫學院化學病理及代謝醫學教授Carel le Roux博士表示:「Arrowhead公布的ARO-INHBE及ARO-ALK7臨床中期結果,顯示在內臟脂肪快速且顯著的減少,這是代謝疾病的主要致病因素。」

至今兩款療法均普遍耐受良好,大多數不良反應均為輕微。相關的第一/二期臨床試驗仍在進行中,預計2026年稍後會有更多結果公布。

編輯評論:

Arrowhead這次的臨床試驗數據,尤其是ARO-INHBE與tirzepatide的聯合療法,展現出翻倍的體重減輕效果,無疑為抗肥胖及糖尿病治療領域帶來嶄新的希望。內臟脂肪的顯著減少尤其重要,因為它與心血管疾病及代謝綜合症的風險息息相關。相比現有的肥胖藥物,這種RNA干擾技術能精準針對脂肪細胞基因,似乎開創了更有效且專一的治療方向。

然而,作為新型療法,安全性和長期效果仍需時間檢驗。早期數據雖令人振奮,但後續臨床試驗的規模擴大及更長期的觀察結果,才可真正確定療效及風險平衡。此外,這種療法的成本及普及性亦是實際應用的關鍵挑戰。

對投資者而言,Arrowhead股價的急升反映市場對其技術潛力的高度期待,但同時也意味著風險與波動性。持續關注臨床數據更新及監管進展,對判斷其未來走勢至關重要。

總括來說,Arrowhead的RNAi療法為肥胖及糖尿病治療帶來突破,值得醫療界和投資界繼續追蹤。這種精準且多重作用機制的策略,有望在未來成為改變肥胖治療格局的新標杆。

以上文章由GPT 所翻譯及撰寫。