科普專欄–薯不揀單 - 深入淺出–癌症藥物研究的奇效個案(1)

要通過癌症藥物臨床研究，其中的一道標準就是藥物有高度效率殺滅癌細胞。469Please respect copyright.ＰＥＮＡＮＡnC6JhMHUUT
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追求高效率無可厚非，但以這個例子中，101個病人中，只有1人見效，是否真的代表要放棄這藥呢?469Please respect copyright.ＰＥＮＡＮＡ60uAAv6TSm
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（圖2）在一次Phase2臨床研究中，Everolimus藥物未能在大部份病人中見得到成效，唯獨在一名病人中出現奇效。469Please respect copyright.ＰＥＮＡＮＡcblLUijNdy
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圖中紅箭嘴所指的位置為腫瘤所在地。用藥6個月後，腫瘤完全消失，情況一直持續至2年半有多。469Please respect copyright.ＰＥＮＡＮＡZJCSFU4Voa
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這個情況下，又是否應該放棄這藥物，就這樣以奇蹟二字來解釋此事作罷呢?469Please respect copyright.ＰＥＮＡＮＡha2D6a1L0K
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（圖3）有科學家死心不惜(Ref1)，致力研究那名病人為何會對此藥作出如此正面的效果。469Please respect copyright.ＰＥＮＡＮＡaBqt1fQ5bL
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最後確認原因是那名病人同時在兩道基因NF2及TSC1出現變異，引致該藥物的機制更能有效針對癌細胞。469Please respect copyright.ＰＥＮＡＮＡN5iyUdhCGw
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那場臨床研究主要是針對膀胱癌病人，而膀胱癌同時會出現這兩種基因變異的機率非常之低，因此研究結果非常參差。469Please respect copyright.ＰＥＮＡＮＡPfYrDdMU2l
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但是，倘若將來有其他癌症病人同時擁有這兩道基因變異呢?469Please respect copyright.ＰＥＮＡＮＡ9Nzn6HqxDo
如果此藥物能有效應付出現這兩道變異基因的癌症，那麼藥物是否還是值得推出市場呢？469Please respect copyright.ＰＥＮＡＮＡ2DhIb3oFv3
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無論如何，此藥最後在2012及2018年被FDA認可，可用作醫療與TSC基因變異有關的症狀。469Please respect copyright.ＰＥＮＡＮＡocMMFsFqar
那份科學家死心不惜的研究是否有作出相關功勞，並沒有真接證據可顯示得到。469Please respect copyright.ＰＥＮＡＮＡxBeMYebZqK
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但這份研究明顯地帶出了一道訊息，就算新藥沒能對大部份的病人見效，亦是值得擺放努力剖析為何會對小部份人見效，分分中可能會有意外的收獲，增進開放藥物的新方向。469Please respect copyright.ＰＥＮＡＮＡ0KDfgmTuY9
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如果想我快啲出文的話，請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark，這對我非常之重要。469Please respect copyright.ＰＥＮＡＮＡZIlUqFG0sZ
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Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc469Please respect copyright.ＰＥＮＡＮＡsDwotdv0uW
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同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」，以課金的方式推動我繼續搜羅資料寫文，多謝。469Please respect copyright.ＰＥＮＡＮＡShu17QZwwl
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Link:469Please respect copyright.ＰＥＮＡＮＡPzsGDUkLkb
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio469Please respect copyright.ＰＥＮＡＮＡmdV9j1lEP9
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有興趣接收科學資訊的話，歡迎follow IG: potatopigtongue。469Please respect copyright.ＰＥＮＡＮＡeuVBoG9DRR
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Ref1:https://pubmed.ncbi.nlm.nih.gov/22923433/

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