博生吉医药CD7靶向CAR-T细胞注射液获得美国FDA孤儿药资格认定

2021-11-11 MedSci原创 MedSci原创

近日,博生吉医药科技(苏州)有限公司(以下简称“博生吉”)宣布,其开发的CD7靶向的嵌合抗原受体(CAR)-T细胞注射液(PA3-17注射液)收到美国食品药品监督管理局(FDA

近日,博生吉医药科技(苏州)有限公司(以下简称“博生吉”)宣布,其开发的CD7靶向的嵌合抗原受体(CAR)-T细胞注射液(PA3-17注射液)收到美国食品药品监督管理局(FDA)授予的孤儿药资格认定(Orphan Drug Designation, ODD),用于治疗复发难治的T细胞急性淋巴细胞白血病/淋巴瘤(T-cell Acute Lymphoblastic Leukemia/Lymphoma (T-ALL/LBL))。

T-ALL/LBL是高度侵袭性的,虽然强化化疗如ALL型方案是常用的,但大约一半患者最终复发并死于T-ALL/LBL。CAR-T细胞在治疗B细胞系恶性血液病方面取得突破。然而,CAR-T治疗T细胞恶性肿瘤的临床研究较少。CD7在复发/难治性T-ALL/LBL中过表达高达100%,是T-ALL/LBL有吸引力的治疗靶点。

博生吉董事长兼CEO杨林博士表示,尽管已经报道了几个健康供体来源的CD7-CAR-T试验,但自体CD7-CAR-T细胞治疗是另一个有希望的策略。

图片

PA3-17注射液是博生吉自主开发的国际首款基于CD7纳米抗体的CAR-T细胞注射液(研发代号:PA3-17注射液),在前期临床试验中取得了ORR高达100%、完全缓解率接近90%的优越临床疗效。作为全球第一款针对难治复发T淋巴母细胞白血病/淋巴瘤(R/R T-ALL/LBL)的CAR-T细胞药物,在2021年8月6日正式获得国家药审中心的IND批件,临床开发进度居全球首位。 

在此之前,即2021年5月19日,中国CDE受理博生吉医药科技(苏州)有限公司自主创新研发的PA3-17注射液的临床申请,PA3-17是靶向CD7自体嵌合抗原受体T细胞注射液,拟申报适应症为成人复发/难治性CD7阳性血液淋巴系统恶性肿瘤。

图表来源:CDE

关于PA3-17注射液

与传统的CD19-CAR-T和BCMA-CAR-T等不同,CD7-CAR-T细胞的研制及临床应用面临巨大挑战,包括:肿瘤T细胞和正常T细胞共同表达CD7导致传统制备工艺会使得CAR-T细胞之间由于其相互残杀而无法获得、肿瘤T细胞在CAR-T细胞中的残留会导致产品无法放行、T淋巴细胞暂时减少会增加发生感染的风险等等。

因此,国际上有不少团队正在尝试基于基因编辑敲除CD7和TCR的策略来制备来自健康供体的UCAR-T细胞。然而,博生吉研制成功的自体CD7-CAR-T细胞,由于避免了基因编辑的相关风险、再加上体内呈现优越的扩增与持续性,因此疗效显著,安全性较高。而且,由于开发成功高度优化的全自动制备工艺,成本显著降低,将有望成为普通百姓患者用得起的创新药物。

博生吉自2012年起就开始研制CD7单域抗体,先后开展了CD7免疫毒素和CD7-CAR-NK的研发,并最终研制成功国际上首个具有First-in-class潜力的自体CD7-CAR-T细胞。2020年博生吉和临床合作机构郑州大学第一附属医院张明智教授分别在欧洲血液学协会(EHA)会议上进行了临床前研究结果和前期临床试验结果(研究者发起的临床研究)的报道。并于近日在第63届美国血液学会(ASH)年会期间展示其自体来源CD7靶向的嵌合抗原受体T细胞的最新研究成果。

关于博生吉

开发肿瘤患者真正需要的高质量细胞药物,是博生吉的愿景与目标。博生吉成立于2010年,专注于开发具有国际领先水平的突破性First-in-class和Best-in-class CAR-T细胞药物,已有多个细胞产品进入POC临床验证阶段,涵盖大部分血液肿瘤和部分实体肿瘤。公司还积极研发双特异性抗体药物,并致力于成为全球CAR-T细胞药物的领军企业,造福广大肿瘤患者。

公司于2012年获得来自苏州工业园区领军创投、苏州工业园区创业投资引导基金以及其他合作伙伴的天使轮投资,2015和2016年又得到了安科生物的战略投资,并成立了专注于细胞药物生产和产业化的博生吉安科细胞技术有限公司。

今年初博生吉医药科技(苏州)和博生吉安科完成了重大内部重组,并获得了由元生创投领投,普恩国新股权投资和仙瞳资本跟投的A轮投资。公司同时正在积极布局中国北方供应链和细胞制备中心,开启了新的发展征程。

博生吉凭借其一流的细胞治疗药物研发能力、全自动CAR-T细胞制备工艺技术、以及先进的慢病毒载体工业化生产体系,已开发成功多个细胞产品并进入临床验证阶段,涵盖大部分血液肿瘤和部分实体肿瘤。其中,针对T淋巴母细胞白血病/淋巴瘤、儿童神经母细胞瘤等的多个细胞药物候选产品,在临床验证中已初步显露出令人鼓舞的疗效与安全性。

关于CD7靶点

CD7是一种穿膜糖蛋白 ,表达在大多数T细胞淋巴瘤和白血病细胞表面,而在一小部分正常T淋巴细胞上缺失。

CD7作为跨膜蛋白,和抗体或者抗体衍生物结合后会迅速内化,这使得针对CD7分子的抗体非常适合作为药物运输工具。CD7是T-ALL和NKTCL的理想治疗靶点,因为它在T-ALL中持续表达。而且无论是T-ALL的初诊、复发、以及化疗期间,其表达始终存在;在我国NKTCL患者肿瘤细胞上也呈现高表达。

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    2022-08-27 循证小兵

    #博生吉医药##CD7#靶向#CAR-T细胞#注射液获得美国FDA#孤儿药#资格认定

    0

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    2022-02-04 仁者大医
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    2021-11-13 cathymary
  4. [GetPortalCommentsPageByObjectIdResponse(id=1241287, encodeId=655d124128e36, content=<a href='/topic/show?id=c6ec1046085e' target=_blank style='color:#2F92EE;'>#博生吉医药#</a><a href='/topic/show?id=8c1510460960' target=_blank style='color:#2F92EE;'>#CD7#</a>靶向<a href='/topic/show?id=4e2640e283' target=_blank style='color:#2F92EE;'>#CAR-T细胞#</a>注射液获得美国FDA<a href='/topic/show?id=dad04542ede' target=_blank style='color:#2F92EE;'>#孤儿药#</a>资格认定, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=104608, encryptionId=c6ec1046085e, topicName=博生吉医药), TopicDto(id=104609, encryptionId=8c1510460960, topicName=CD7), TopicDto(id=4072, encryptionId=4e2640e283, topicName=CAR-T细胞), TopicDto(id=45427, encryptionId=dad04542ede, topicName=孤儿药)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220519/c2ab253484ee4527a2d4e9589a4821ac/45de9bf494a54becb2ea4369c9d11e85.jpg, createdBy=7a3710, createdName=循证小兵, createdTime=Sat Aug 27 01:08:39 CST 2022, time=2022-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1781450, encodeId=4f001e814501a, content=<a href='/topic/show?id=8ce8405907' target=_blank style='color:#2F92EE;'>#CAR-#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4059, encryptionId=8ce8405907, topicName=CAR-)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8e886, createdName=仁者大医, createdTime=Fri Feb 04 00:06:41 CST 2022, time=2022-02-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1410184, encodeId=2d8c1410184d2, content=<a href='/topic/show?id=2c1c35262a9' target=_blank style='color:#2F92EE;'>#医药#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=35262, encryptionId=2c1c35262a9, topicName=医药)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=36f62754598, createdName=cathymary, createdTime=Sat Nov 13 03:06:41 CST 2021, time=2021-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1551525, encodeId=3a0d1551525ca, content=<a href='/topic/show?id=5d84e9716c0' target=_blank style='color:#2F92EE;'>#美国FDA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79716, encryptionId=5d84e9716c0, topicName=美国FDA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a46914191431, createdName=10518098zz, createdTime=Sat Nov 13 03:06:41 CST 2021, time=2021-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1586612, encodeId=53c7158661201, content=<a href='/topic/show?id=f87c6499085' target=_blank style='color:#2F92EE;'>#注射液#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64990, encryptionId=f87c6499085, topicName=注射液)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c93417353045, createdName=shijzhiewnjhch, createdTime=Sat Nov 13 03:06:41 CST 2021, time=2021-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1069248, encodeId=83d61069248a0, content=格局被理想撑大,事业由梦想激发, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=13385627765, createdName=ms3000001637087988, createdTime=Thu Nov 11 12:38:07 CST 2021, time=2021-11-11, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=1241287, encodeId=655d124128e36, content=<a href='/topic/show?id=c6ec1046085e' target=_blank style='color:#2F92EE;'>#博生吉医药#</a><a href='/topic/show?id=8c1510460960' target=_blank style='color:#2F92EE;'>#CD7#</a>靶向<a href='/topic/show?id=4e2640e283' target=_blank style='color:#2F92EE;'>#CAR-T细胞#</a>注射液获得美国FDA<a href='/topic/show?id=dad04542ede' target=_blank style='color:#2F92EE;'>#孤儿药#</a>资格认定, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=104608, encryptionId=c6ec1046085e, topicName=博生吉医药), TopicDto(id=104609, encryptionId=8c1510460960, topicName=CD7), TopicDto(id=4072, encryptionId=4e2640e283, topicName=CAR-T细胞), TopicDto(id=45427, encryptionId=dad04542ede, topicName=孤儿药)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220519/c2ab253484ee4527a2d4e9589a4821ac/45de9bf494a54becb2ea4369c9d11e85.jpg, createdBy=7a3710, createdName=循证小兵, createdTime=Sat Aug 27 01:08:39 CST 2022, time=2022-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1781450, encodeId=4f001e814501a, content=<a href='/topic/show?id=8ce8405907' target=_blank style='color:#2F92EE;'>#CAR-#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4059, encryptionId=8ce8405907, topicName=CAR-)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8e886, createdName=仁者大医, createdTime=Fri Feb 04 00:06:41 CST 2022, time=2022-02-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1410184, encodeId=2d8c1410184d2, content=<a href='/topic/show?id=2c1c35262a9' target=_blank style='color:#2F92EE;'>#医药#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=35262, encryptionId=2c1c35262a9, topicName=医药)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=36f62754598, createdName=cathymary, createdTime=Sat Nov 13 03:06:41 CST 2021, time=2021-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1551525, encodeId=3a0d1551525ca, content=<a href='/topic/show?id=5d84e9716c0' target=_blank style='color:#2F92EE;'>#美国FDA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79716, encryptionId=5d84e9716c0, topicName=美国FDA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a46914191431, createdName=10518098zz, createdTime=Sat Nov 13 03:06:41 CST 2021, time=2021-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1586612, encodeId=53c7158661201, content=<a href='/topic/show?id=f87c6499085' target=_blank style='color:#2F92EE;'>#注射液#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64990, encryptionId=f87c6499085, topicName=注射液)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c93417353045, createdName=shijzhiewnjhch, createdTime=Sat Nov 13 03:06:41 CST 2021, time=2021-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1069248, encodeId=83d61069248a0, content=格局被理想撑大,事业由梦想激发, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=13385627765, createdName=ms3000001637087988, createdTime=Thu Nov 11 12:38:07 CST 2021, time=2021-11-11, status=1, ipAttribution=)]
  6. [GetPortalCommentsPageByObjectIdResponse(id=1241287, encodeId=655d124128e36, content=<a href='/topic/show?id=c6ec1046085e' target=_blank style='color:#2F92EE;'>#博生吉医药#</a><a href='/topic/show?id=8c1510460960' target=_blank style='color:#2F92EE;'>#CD7#</a>靶向<a href='/topic/show?id=4e2640e283' target=_blank style='color:#2F92EE;'>#CAR-T细胞#</a>注射液获得美国FDA<a href='/topic/show?id=dad04542ede' target=_blank style='color:#2F92EE;'>#孤儿药#</a>资格认定, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=104608, encryptionId=c6ec1046085e, topicName=博生吉医药), TopicDto(id=104609, encryptionId=8c1510460960, topicName=CD7), TopicDto(id=4072, encryptionId=4e2640e283, topicName=CAR-T细胞), TopicDto(id=45427, encryptionId=dad04542ede, topicName=孤儿药)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220519/c2ab253484ee4527a2d4e9589a4821ac/45de9bf494a54becb2ea4369c9d11e85.jpg, createdBy=7a3710, createdName=循证小兵, createdTime=Sat Aug 27 01:08:39 CST 2022, time=2022-08-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1781450, encodeId=4f001e814501a, content=<a href='/topic/show?id=8ce8405907' target=_blank style='color:#2F92EE;'>#CAR-#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4059, encryptionId=8ce8405907, topicName=CAR-)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8e886, createdName=仁者大医, createdTime=Fri Feb 04 00:06:41 CST 2022, time=2022-02-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1410184, encodeId=2d8c1410184d2, content=<a href='/topic/show?id=2c1c35262a9' target=_blank style='color:#2F92EE;'>#医药#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=35262, encryptionId=2c1c35262a9, topicName=医药)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=36f62754598, createdName=cathymary, createdTime=Sat Nov 13 03:06:41 CST 2021, time=2021-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1551525, encodeId=3a0d1551525ca, content=<a href='/topic/show?id=5d84e9716c0' target=_blank style='color:#2F92EE;'>#美国FDA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79716, encryptionId=5d84e9716c0, topicName=美国FDA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a46914191431, createdName=10518098zz, createdTime=Sat Nov 13 03:06:41 CST 2021, time=2021-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1586612, encodeId=53c7158661201, content=<a href='/topic/show?id=f87c6499085' target=_blank style='color:#2F92EE;'>#注射液#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64990, encryptionId=f87c6499085, topicName=注射液)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c93417353045, createdName=shijzhiewnjhch, createdTime=Sat Nov 13 03:06:41 CST 2021, time=2021-11-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1069248, encodeId=83d61069248a0, content=格局被理想撑大,事业由梦想激发, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=13385627765, createdName=ms3000001637087988, createdTime=Thu Nov 11 12:38:07 CST 2021, time=2021-11-11, status=1, ipAttribution=)]
    2021-11-11 ms3000001637087988

    格局被理想撑大,事业由梦想激发

    0

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