P2X3受体拮抗剂 eliapixant对难治性慢性咳嗽的疗效和安全性

2021-11-20 小文子 MedSci原创

选择性P2X3拮抗剂似乎是治疗难治性慢性咳嗽的一种新方法。

持续存在的慢性咳嗽为难治性慢性咳嗽(RCC),对患者的生理和心理带来巨大影响。发表在Eur Respir J杂志的2a期双盲随机对照研究评估了选择性P2X3受体拮抗剂eliapixant(BAY 1817080)对难治性慢性咳嗽患者的安全性、耐受性和疗效。

研究纳入18岁以上,体重指数18~35kg/m2,诊断慢性咳嗽1年以上的患者。包括2个治疗阶段,A阶段,患者接受安慰剂治疗2周,然后eliapixant 10mg治疗持续1周。B阶段,患者接受50、200和750mg的eliapixant,每个剂量水平持续1周。患者按1:1的比例随机分为A-B阶段(n=20)或B-A阶段(n=20),中间3~4周洗脱期。基线和每个治疗周的最后一天(第6、13和20天)随访患者。

主要疗效终点是24小时期间每小时咳嗽频率的变化。次要疗效终点为患者咳嗽严重程度和咳嗽相关生活质量。主要安全终点是不良事件的发生频率和严重程度。

共37例患者完成了随机治疗。安慰剂组咳嗽频率(24h内测量)相对于基线平均降低17.4%,eliapixant组相对于基线平均降低9.4%~38.1%。eliapixant≥50 mg剂量能够降低咳嗽频率(相比于基线,750 mg剂量降低25%(90%CI, 11.5%~36.5%); p = 0.002)。50 mg剂量同样显著降低咳嗽严重程度。事后分析显示,与安慰剂相比,750 mg剂量组24h内咳嗽频率和清醒咳嗽频率分别降低30.6%和32.1%。使用eliapixant后咳嗽严重程度呈剂量依赖性降低。

65%安慰剂组和41%~49%的eliapixant组患者出现不良反应,大部分为轻度或中度。与味觉相关不良事件的累积发生率在安慰剂组为3%,而eliapixant组为5-21%,均为轻度。

结果显示选择性P2X3拮抗剂eliapixant可显著降低咳嗽频率和严重程度,证实是难治性慢性咳嗽的可行治疗途径,同时治疗剂量下味觉相关副作用较低,表明选择性P2X3拮抗剂似乎是治疗难治性慢性咳嗽的一种新方法。

 

原文出处:

Morice A, Smith JA, McGarvey L,et al. Eliapixant (BAY 1817080), a P2X3 receptor antagonist, in refractory chronic cough: a randomised, placebo-controlled, crossover phase 2a study.Eur Respir J,2021;DOI: 10.1183/13993003.04240-2020.

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  2. [GetPortalCommentsPageByObjectIdResponse(id=1721116, encodeId=cdb61e21116e3, content=<a href='/topic/show?id=634ee040179' target=_blank style='color:#2F92EE;'>#疗效和安全性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=70401, encryptionId=634ee040179, topicName=疗效和安全性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=16ef32982072, createdName=经常头晕, createdTime=Sun Sep 04 19:03:53 CST 2022, time=2022-09-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1072514, encodeId=5e7110e2514a0, content=指南, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=e0695716351, createdName=ms1000001672768102, createdTime=Sun Nov 21 14:55:38 CST 2021, time=2021-11-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1072421, encodeId=06b110e24215e, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=48, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=cbcd5675699, createdName=moyanju2796, createdTime=Sun Nov 21 08:21:48 CST 2021, time=2021-11-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1511800, encodeId=b9001511800ee, content=<a href='/topic/show?id=90d75628960' target=_blank style='color:#2F92EE;'>#拮抗剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56289, encryptionId=90d75628960, topicName=拮抗剂)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=474c10379153, createdName=ms5236388012055669, createdTime=Sun Nov 21 07:03:53 CST 2021, time=2021-11-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1528813, encodeId=bf031528813e2, content=<a href='/topic/show?id=74b798601a1' target=_blank style='color:#2F92EE;'>#难治性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=98601, encryptionId=74b798601a1, topicName=难治性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a1ef11916292, createdName=freve, createdTime=Sun Nov 21 07:03:53 CST 2021, time=2021-11-21, status=1, ipAttribution=)]
    2021-11-21 ms1000001672768102

    指南

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=1721116, encodeId=cdb61e21116e3, content=<a href='/topic/show?id=634ee040179' target=_blank style='color:#2F92EE;'>#疗效和安全性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=70401, encryptionId=634ee040179, topicName=疗效和安全性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=16ef32982072, createdName=经常头晕, createdTime=Sun Sep 04 19:03:53 CST 2022, time=2022-09-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1072514, encodeId=5e7110e2514a0, content=指南, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=e0695716351, createdName=ms1000001672768102, createdTime=Sun Nov 21 14:55:38 CST 2021, time=2021-11-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1072421, encodeId=06b110e24215e, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=48, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=cbcd5675699, createdName=moyanju2796, createdTime=Sun Nov 21 08:21:48 CST 2021, time=2021-11-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1511800, encodeId=b9001511800ee, content=<a href='/topic/show?id=90d75628960' target=_blank style='color:#2F92EE;'>#拮抗剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56289, encryptionId=90d75628960, topicName=拮抗剂)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=474c10379153, createdName=ms5236388012055669, createdTime=Sun Nov 21 07:03:53 CST 2021, time=2021-11-21, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1528813, encodeId=bf031528813e2, content=<a href='/topic/show?id=74b798601a1' target=_blank style='color:#2F92EE;'>#难治性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=98601, encryptionId=74b798601a1, topicName=难治性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a1ef11916292, createdName=freve, createdTime=Sun Nov 21 07:03:53 CST 2021, time=2021-11-21, status=1, ipAttribution=)]
    2021-11-21 moyanju2796

    学习了

    0

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    2021-11-21 freve