条件性CD28共刺激剂和双重PD-L1和CTLA-4检查点抑制剂davoceticept临床试验遭遇挫折:患者死亡

2022-03-09 Allan MedSci原创

制药公司 Alpine 本周一披露, 因患者死亡,FDA 已暂停其 I 期 NEON-2试验的部分临床试验。

制药公司 Alpine 本周一披露, 因患者死亡,FDA 已暂停其 I 期 NEON-2试验的部分临床试验,该试验旨在评估 davoceticept 与默克公司的 Keytruda ( pembrolizumab )联合治疗晚期恶性肿瘤的有效性和安全性。

据 Alpine 称,该患者患有脉络膜黑色素瘤,之前接受过百时美施贵宝的 Opdivo(nivolumab)和 Yervoy(ipilimumab)治疗。在 NEON-2 试验中,该患者接受了单剂量的 davoceticept 和 Keytruda。据 Alpine 称,死亡归因于心源性休克,治疗医生认为这可能与免疫介导的心肌炎或感染有关。

Davoceticept,也称为 ALPN-202,是一种条件性 CD28 共刺激剂和双重 PD-L1 和 CTLA-4 检查点抑制剂,用于治疗癌症。去年,Alpine 表示,在 I 期 NEON-1 单药治疗研究中,61% 的患者似乎获得了临床益处,尽管大多数患者的肿瘤通常被认为对免疫疗法无反应。

Alpine 首席执行官 Mitchell Gold 在评论部分搁置时说:“鉴于 davoceticept 和 Keytruda 联合使用以使难治性患者受益的强大科学依据,我们希望在适当的安全审查后很快恢复该研究”。虽然 NEON-2 试验目前被禁止招募新患者,但已经注册的患者可能会继续接受 davoceticept 和 Keytruda。同时,FDA 的行动不影响正在进行的 NEON-1 试验。

尽管肿瘤免疫治疗取得了重大进展,但大多数接受检查点抑制剂治疗的患者要么对治疗没有反应,要么产生耐药性。最近的研究表明,免疫检查点主要通过抑制 CD28 发挥作用,CD28 是 T 细胞中一种关键的共刺激受体。Davoceticept 基于变体 CD80 细胞外结构域,通过定向进化工程改造以结合 PD-L1 以及 CD28 和 CTLA-4。Davoceticept 通过与 PD-L1 的高亲和力结合定位于肿瘤,仅在 PD-L1 存在时通过 CD28 的聚集和激动作用激活 T 细胞。

 

原始出处:

https://firstwordpharma.com/story/5519385

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1983767, encodeId=02541983e67e0, content=<a href='/topic/show?id=628553048e3' target=_blank style='color:#2F92EE;'>#患者死亡#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=53048, encryptionId=628553048e3, topicName=患者死亡)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Mon Mar 28 13:13:29 CST 2022, time=2022-03-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1852904, encodeId=cfce1852904cb, content=<a href='/topic/show?id=f0a254918f0' target=_blank style='color:#2F92EE;'>#抑制剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54918, encryptionId=f0a254918f0, topicName=抑制剂)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=44a360, createdName=jklm09, createdTime=Sat Dec 24 08:13:29 CST 2022, time=2022-12-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1201679, encodeId=af0b12016e93d, content=双靶的风险, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210723/56116342528946a0b7a8a04ed8d034a4/c34527bbc5a64c89b0e127713e4b500e.jpg, createdBy=610c95823, createdName=graceoo, createdTime=Fri Mar 11 13:05:20 CST 2022, time=2022-03-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1255142, encodeId=43af1255142dd, content=<a href='/topic/show?id=be71139214f' target=_blank style='color:#2F92EE;'>#PD-L1#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=48, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13921, encryptionId=be71139214f, topicName=PD-L1)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e76f39, createdName=smartjoy, createdTime=Fri Mar 11 02:13:29 CST 2022, time=2022-03-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1461894, encodeId=c5021461894fb, content=<a href='/topic/show?id=4440540855' target=_blank style='color:#2F92EE;'>#CTLA-4#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5408, encryptionId=4440540855, topicName=CTLA-4)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=07c46457704, createdName=hywen7328, createdTime=Fri Mar 11 02:13:29 CST 2022, time=2022-03-11, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1983767, encodeId=02541983e67e0, content=<a href='/topic/show?id=628553048e3' target=_blank style='color:#2F92EE;'>#患者死亡#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=53048, encryptionId=628553048e3, topicName=患者死亡)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Mon Mar 28 13:13:29 CST 2022, time=2022-03-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1852904, encodeId=cfce1852904cb, content=<a href='/topic/show?id=f0a254918f0' target=_blank style='color:#2F92EE;'>#抑制剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54918, encryptionId=f0a254918f0, topicName=抑制剂)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=44a360, createdName=jklm09, createdTime=Sat Dec 24 08:13:29 CST 2022, time=2022-12-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1201679, encodeId=af0b12016e93d, content=双靶的风险, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210723/56116342528946a0b7a8a04ed8d034a4/c34527bbc5a64c89b0e127713e4b500e.jpg, createdBy=610c95823, createdName=graceoo, createdTime=Fri Mar 11 13:05:20 CST 2022, time=2022-03-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1255142, encodeId=43af1255142dd, content=<a href='/topic/show?id=be71139214f' target=_blank style='color:#2F92EE;'>#PD-L1#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=48, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13921, encryptionId=be71139214f, topicName=PD-L1)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e76f39, createdName=smartjoy, createdTime=Fri Mar 11 02:13:29 CST 2022, time=2022-03-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1461894, encodeId=c5021461894fb, content=<a href='/topic/show?id=4440540855' target=_blank style='color:#2F92EE;'>#CTLA-4#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5408, encryptionId=4440540855, topicName=CTLA-4)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=07c46457704, createdName=hywen7328, createdTime=Fri Mar 11 02:13:29 CST 2022, time=2022-03-11, status=1, ipAttribution=)]
    2022-12-24 jklm09
  3. [GetPortalCommentsPageByObjectIdResponse(id=1983767, encodeId=02541983e67e0, content=<a href='/topic/show?id=628553048e3' target=_blank style='color:#2F92EE;'>#患者死亡#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=53048, encryptionId=628553048e3, topicName=患者死亡)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Mon Mar 28 13:13:29 CST 2022, time=2022-03-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1852904, encodeId=cfce1852904cb, content=<a href='/topic/show?id=f0a254918f0' target=_blank style='color:#2F92EE;'>#抑制剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54918, encryptionId=f0a254918f0, topicName=抑制剂)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=44a360, createdName=jklm09, createdTime=Sat Dec 24 08:13:29 CST 2022, time=2022-12-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1201679, encodeId=af0b12016e93d, content=双靶的风险, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210723/56116342528946a0b7a8a04ed8d034a4/c34527bbc5a64c89b0e127713e4b500e.jpg, createdBy=610c95823, createdName=graceoo, createdTime=Fri Mar 11 13:05:20 CST 2022, time=2022-03-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1255142, encodeId=43af1255142dd, content=<a href='/topic/show?id=be71139214f' target=_blank style='color:#2F92EE;'>#PD-L1#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=48, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13921, encryptionId=be71139214f, topicName=PD-L1)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e76f39, createdName=smartjoy, createdTime=Fri Mar 11 02:13:29 CST 2022, time=2022-03-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1461894, encodeId=c5021461894fb, content=<a href='/topic/show?id=4440540855' target=_blank style='color:#2F92EE;'>#CTLA-4#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5408, encryptionId=4440540855, topicName=CTLA-4)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=07c46457704, createdName=hywen7328, createdTime=Fri Mar 11 02:13:29 CST 2022, time=2022-03-11, status=1, ipAttribution=)]
    2022-03-11 graceoo

    双靶的风险

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=1983767, encodeId=02541983e67e0, content=<a href='/topic/show?id=628553048e3' target=_blank style='color:#2F92EE;'>#患者死亡#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=53048, encryptionId=628553048e3, topicName=患者死亡)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Mon Mar 28 13:13:29 CST 2022, time=2022-03-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1852904, encodeId=cfce1852904cb, content=<a href='/topic/show?id=f0a254918f0' target=_blank style='color:#2F92EE;'>#抑制剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54918, encryptionId=f0a254918f0, topicName=抑制剂)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=44a360, createdName=jklm09, createdTime=Sat Dec 24 08:13:29 CST 2022, time=2022-12-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1201679, encodeId=af0b12016e93d, content=双靶的风险, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210723/56116342528946a0b7a8a04ed8d034a4/c34527bbc5a64c89b0e127713e4b500e.jpg, createdBy=610c95823, createdName=graceoo, createdTime=Fri Mar 11 13:05:20 CST 2022, time=2022-03-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1255142, encodeId=43af1255142dd, content=<a href='/topic/show?id=be71139214f' target=_blank style='color:#2F92EE;'>#PD-L1#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=48, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13921, encryptionId=be71139214f, topicName=PD-L1)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e76f39, createdName=smartjoy, createdTime=Fri Mar 11 02:13:29 CST 2022, time=2022-03-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1461894, encodeId=c5021461894fb, content=<a href='/topic/show?id=4440540855' target=_blank style='color:#2F92EE;'>#CTLA-4#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5408, encryptionId=4440540855, topicName=CTLA-4)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=07c46457704, createdName=hywen7328, createdTime=Fri Mar 11 02:13:29 CST 2022, time=2022-03-11, status=1, ipAttribution=)]
    2022-03-11 smartjoy
  5. [GetPortalCommentsPageByObjectIdResponse(id=1983767, encodeId=02541983e67e0, content=<a href='/topic/show?id=628553048e3' target=_blank style='color:#2F92EE;'>#患者死亡#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=53048, encryptionId=628553048e3, topicName=患者死亡)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=12de429, createdName=sunylz, createdTime=Mon Mar 28 13:13:29 CST 2022, time=2022-03-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1852904, encodeId=cfce1852904cb, content=<a href='/topic/show?id=f0a254918f0' target=_blank style='color:#2F92EE;'>#抑制剂#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=54918, encryptionId=f0a254918f0, topicName=抑制剂)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=44a360, createdName=jklm09, createdTime=Sat Dec 24 08:13:29 CST 2022, time=2022-12-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1201679, encodeId=af0b12016e93d, content=双靶的风险, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20210723/56116342528946a0b7a8a04ed8d034a4/c34527bbc5a64c89b0e127713e4b500e.jpg, createdBy=610c95823, createdName=graceoo, createdTime=Fri Mar 11 13:05:20 CST 2022, time=2022-03-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1255142, encodeId=43af1255142dd, content=<a href='/topic/show?id=be71139214f' target=_blank style='color:#2F92EE;'>#PD-L1#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=48, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13921, encryptionId=be71139214f, topicName=PD-L1)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e76f39, createdName=smartjoy, createdTime=Fri Mar 11 02:13:29 CST 2022, time=2022-03-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1461894, encodeId=c5021461894fb, content=<a href='/topic/show?id=4440540855' target=_blank style='color:#2F92EE;'>#CTLA-4#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=45, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5408, encryptionId=4440540855, topicName=CTLA-4)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=07c46457704, createdName=hywen7328, createdTime=Fri Mar 11 02:13:29 CST 2022, time=2022-03-11, status=1, ipAttribution=)]
    2022-03-11 hywen7328

相关资讯

AJH:PD-L1 过表达与 JAK2-V617F 突变负担相关,并与骨髓增殖性肿瘤中的 9p 单亲二体性相关。

PD-L1在MPN细胞中大量表达,包括MPN启动表型定义的CD34+CD45dimCD38−NSC。但靶向 PD-L1 是否可以克服 MPN 中的 NSC 耐药性仍有待在即将进行的研究中阐明。

Front Oncol:PD-L1高表达是肝细胞癌患者手术切除后索拉非尼辅助治疗后复发的独立预测因素

研究表明,PD-L1过表达可作为高复发风险肝细胞癌患者术后接受索拉非尼辅助治疗复发的独立预测因素。

J Clin Oncol:信迪利单抗联合安罗替尼治疗PD-L1阳性晚期宫颈癌

信迪利单抗联合安罗替尼作为既往化疗失败的晚期宫颈癌患者的二线或晚线疗法是有效且安全的

Lancet:切除的IB–IIIA期NSCLC患者辅助化疗后应用阿特珠单抗可额外获益

手术切除的 II-IIIA 期 NSCLC 患者在辅助化疗后接受阿特珠单抗治疗的无病生存益处优于最佳支持治疗

Chest:支气管超声引导下针吸穿刺(EBUS-TBNA)获得的标本检测PD-L1表达同样可指导PD1抑制剂在晚期NSCLC患者中的应用

研究表明,EBUS获得标本以及传统获取组织标本检测PD-L1表达对于指导PD-1抑制剂治疗晚期NSCLC患者的疗效无明显差异。

JNB:刺芒柄花素抑制宫颈癌的机制研究

刺芒柄花素抑制宫颈癌的机制研究,为进一步研究和开发宫颈癌抗癌药物提供依据

拓展阅读

NAT STRUCT MOL BIOL :许琛琦组等揭示T细胞共刺激受体CD28的活性调控机制

CD28是T细胞中关键的共刺激受体,它调控T细胞的发育、分化、代谢、迁移等生理过程。近期研究还表明CD28可能成为肿瘤免疫治疗的一个重要分子标记。然而目前关于抑制CD28与下游分子产生自动结合的分子机制并不清楚,另外CD28的信号转导具有T细胞抗原受体依赖性激活的分子机理也不清楚。10月23日,中科院生物化学与细胞生物学研究所许琛琦研究组与牛津大学Omer Dushek研究组合作在Nature S