维昇药业TransCon C-型利钠肽II期中国临床试验申请获批

2021-01-10 医药魔方 医药魔方

1月7日,维昇药业(VISEN Pharmaceuticals)宣布其向中国国家药品监督管理局(NMPA)递交的注射用TransCon CNP(TransCon C-型利钠肽)用于软骨发育不全(ACH

1月7日,维升药业(VISEN Pharmaceuticals)宣布其向中国国家药品监督管理局(NMPA)递交的注射用TransCon CNP(TransCon C-型利钠肽)用于软骨发育不全(ACH)患者的II期新药临床试验申请已经获得批准,即将在中国开展ACcomplisH China临床试验,实现了与ACcomplisH(一项正在由Ascendis Pharma开展的TransCon C-型利钠肽 II期全球临床试验)全球同步。

TransCon CNP通过持续提供活性CNP以抑制过度激活的成纤维细胞生长因子受体3(FGFR3)信号通路,每周一次给药缓慢释放,旨在帮助ACH儿童患者重建骨骼生长平衡,同时改善和预防ACH的并发症。TransCon CNP已同时获得美国食品和药品监督管理局和欧盟委员会授予的孤儿药资格认定。

软骨发育不全患者面临多重困境亟待解决

软骨发育不全是最常见的非匀称性身材矮小,其是由成纤维细胞生长因子受体3(FGFR3)基因中的一个常染色体显性激活突变引起的,该突变导致FGFR3和CNP信号通路的作用失衡,属于一种常染色体显性遗传性疾病,约80%的患者,父母身高正常,发病是因为新生儿发生致病性基因突变1。据目前已知数据披露,ACH在活产婴儿中的发病率为1:25,0002,影响全球大约25万人3。患者通常表现为四肢短小、头大以及特征性面容伴前额突出和面中部后缩,婴儿期肌张力低下是典型表现,到成年时,身高也只有1.3米左右4。

此外,ACH还可导致多种严重的并发症,包括枕骨大孔缩小、睡眠呼吸暂停和慢性耳部感染等,使得患者死亡风险增高,生活质量低下。 对于大部分的ACH患者,可以通过特异性的临床及影像学表现来进行诊断。对于部分诊断不明确或表现不典型的患者,可以通过FGFR3杂合体基因变异的检测得以确诊1。治疗方面,目前全球市场上尚未有十分有效的药物被批准用于治疗ACH2。由于缺乏根本性治疗手段,为预防和控制多种合并症,导致患者可能需承受高昂的医疗费用,为个人、家庭及社会保障系统带来沉重负担。

由于患者生活难以自理,教育、就业困难,收入低等因素,使得他们难以融入社会,进一步增加了生活负担,进而导致以家庭为单位的劳动力缺失,社会保障支出增加。因此,目前迫切需要加速针对病因的新药研发以降低患者、家庭及社会的负担。

TransCon CNP II期临床研究全球同步,加速研发进程

根据临床前和临床数据表明,CNP通路可促进生长。增加的CNP可抵消FGFR3突变的影响,从而促进骨骼生长。然而,人体中天然CNP的半衰期短,仅有2-3分钟5,需要连续静脉输注使用,导致其难以临床应用。 目前,TransCon CNP是全球唯一处于临床或商业化阶段的采用 “暂时连接 (Transient Conjugation)”专利技术设计的长效CNP,其半衰期可以达到120小时6。

动物试验结果表明,TransCon CNP可以改善软骨发育不全模型小鼠的骨骼生长,防止枕骨大孔软骨结合过早闭合7。由Ascendis Pharma 进行的I期全球临床研究数据证明了在临床前试验中的药代动力学以及血管安全性,且耐受性良好,未报告严重不良事件或抗CNP抗体出现8。 “我们本次在中国获批的ACcomplisH China研究,是全球临床开发计划中的重要组成,在充分论证及反复沟通其合理性及安全性后获得新药临床试验批准。这将是一项在软骨发育不全患者中评估每周一次TransCon CNP皮下给药的安全性和疗效、多中心、随机、对照、II期临床试验。”维升药业首席医学官杨军博士介绍道:“主要研究目的是评估治疗的安全性和对12个月年化生长速率的作用。我们将在确保患者安全及试验质量的前提下加速全球研发的进度。”

维升药业致力于“患者为先”,以中国临床数据推动全球研发进程

近年来,我国高度重视罕见病的管理,采取了一系列的措施,推动罕见病防治事业的发展。2020年颁布的《基本医疗卫生与健康促进法》中第五章第六十条明确规定,国家建立健全以临床需求为导向的药品审评审批制度,要支持临床急需药品和防治罕见病、重大疾病等药品的研制、生产,满足疾病防治需求。 “得益于政府的支持和众多合作伙伴的不懈努力,本次TransCon CNP在中国实现了与全球同步开展II期临床试验,这将帮助更多中国ACH患者在第一时间获得针对发病机制的潜在有效治疗。

此外,中国的临床数据将作为加速该创新药物全球研发进程的重要支持,从而助力全球的ACH患者。”维升药业首席执行官卢安邦指出:“维升秉承着‘患者为先’的目标,未来我们将继续积极携手合作伙伴,共同提高全社会对我国ACH患者的关注,加速改善中国ACH的诊疗现状,助力‘健康中国2030’的早日实现!” 关于维升药业维升药业(VISEN Pharmaceuticals)致力成为内分泌相关治疗领域的专家,将全球领先的治疗方法及药品引入中国,期望让更多的中国患者更早地受惠于全球先进可靠的治疗方案。 维升药业于2018年成立,由Ascendis Pharma A/S (Nasdaq: ASND)与维梧资本(Vivo Capital)领导的联合投资人共同创立,Sofinnova Ventures参与首轮投资。维升获得Ascendis独家授权,将其旗下的内分泌治疗方案在大中华区开发并推广,授权覆盖中国大陆及港澳台等地区。 关于TransConTM技术TransCon是指“暂时连接”(Transient Conjugation)。TransCon技术平台通过创新的技术开发新的治疗方案,以潜在性地优化包括有效性、安全性和给药频率在内的治疗效果。TransCon分子包括3个部分:未经修饰的原型药物,保护原型药物的惰性载体分子和将两者暂时连接起来的连接结构。当3部分结合后,载体分子可以使得原型药物失活并且不被人体清除。当注射至人体内,在生理条件的pH和体温下,有活性的、未经修饰的原型药物将以可控的方式释放出来。由于原型药物是未经修饰的,因此可以维持其原有的药理机制。TransCon技术可以广泛的应用于各种治疗领域的蛋白质、多肽或小分子,可以全身或局部应用。

相关文献:

Vibeke Miller Breinholt,et al. TransCon CNP, a Sustained-Release C-Type Natriuretic Peptide Prodrug, a Potentially Safe and Efficacious New Therapeutic Modality for the Treatment of Comorbidities Associated with Fibroblast Growth Factor Receptor 3-Related Skeletal Dysplasias. J Pharmacol Exp Ther . 2019 Sep;370(3):459-471

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    2021-10-11 bsmagic9140
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    2021-03-15 ms9000000843457231

    一直在关注这个药物的研制,希望能尽快处理,普通家庭,也希望不要天价,希望能给孩子用。

    0

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    2021-01-10 phoebeyan520

    认真学习

    0

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