通用中文 | 阿伐替尼 | 通用外文 | Avapritinib |
品牌中文 | 泰吉华 | 品牌外文 | Ayvakit |
其他名称 | 抑制kit和pdgfra突变激酶 | ||
公司 | Blueprint Medicines(Blueprint Medicines) | 产地 | 美国(USA) |
含量 | 200mg | 包装 | 30片/盒 |
剂型给药 | 口服 | 储存 | 室温 |
适用范围 | 胃肠道间质瘤 |
通用中文 | 阿伐替尼 |
通用外文 | Avapritinib |
品牌中文 | 泰吉华 |
品牌外文 | Ayvakit |
其他名称 | 抑制kit和pdgfra突变激酶 |
公司 | Blueprint Medicines(Blueprint Medicines) |
产地 | 美国(USA) |
含量 | 200mg |
包装 | 30片/盒 |
剂型给药 | 口服 |
储存 | 室温 |
适用范围 | 胃肠道间质瘤 |
Ayvakit(avapritinib)
公司名称:Blueprint Medicines Corporation
批准日期:2020年1月9日
治疗:胃肠道间质瘤
Ayvakit(avapritinib)是一种有效且高度选择性的KIT和PDGFRα抑制剂,可用于治疗PDGFRα外显子18突变型胃肠道间质瘤(GIST)和四线GIST
马萨诸塞州坎布里奇,2020年1月9日,美通社/-Blueprint Medicines Corporation(NASDAQ:BPMC)是一家专注于基因组定义的癌症,罕见病和癌症免疫疗法的精密治疗公司,今天宣布,美国食品药品监督管理局(美国食品药品管理局(FDA)已批准Ayvakit(avapritinib)用于治疗患有不可切除或转移性胃肠道间质瘤(GIST)的成年人,该疾病具有血小板衍生的生长因子受体α(PDGFRA)外显子18突变,包括PDGFRA D842V突变。 Ayvakit是第一种被批准用于治疗基因组明确的GIST患者的精密疗法。
FDA根据第1阶段NAVIGATOR临床试验的功效结果以及阿伐普利尼的多个临床试验的综合安全性结果,对Ayvakit给予了完全批准。在PDGFRA外显子18突变GIST的患者中,Ayvakit的总缓解率(ORR)为84%(95%CI:69%,93%),并且未达到中位缓解持续时间(DOR)。最常见的不良反应(≥20%)为水肿,恶心,疲劳/乏力,认知障碍,呕吐,食欲下降,腹泻,头发颜色变化,流泪,腹痛,便秘,皮疹和头晕。 Blueprint Medicines计划在一周内在美国提供Ayvakit。
GIST是由基因组驱动的罕见胃肠道肉瘤。新诊断为GIST的患者中约有6%有PDGFRA外显子18突变。最常见的PDGFRA外显子18突变是D842V突变,它对所有其他批准的疗法均具有抵抗力。一项回顾性研究表明,当这些患者接受伊马替尼治疗时,ORR为0%。2
“今天,Ayvakit的批准为PDGFRA外显子18突变GIST患者提供了新的护理标准,这是基因组明确的人群,以前的治疗选择非常有限。我们首次为这些患者提供了针对性治疗的高效治疗疾病的潜在遗传原因”,医学博士,俄勒冈健康与科学大学医学教授,NAVIGATOR试验的研究人员Michael Heinrich说道。 “在我们对GIST分子基础的日益了解的基础上,这一里程碑开创了该疾病精密医学的新纪元。FDA的批准标志着在采取激酶抑制剂治疗之前呼吁对所有GIST患者进行突变测试,按照临床指南的建议,适当的患者可能会意识到这种有前途的新药的好处。”
“基于我们的1期NAVIGATOR临床试验的可靠数据,Ayvakit的全面批准对于我们公司乃至更重要的是,对于PDGFRA外显子18突变的GIST患者,他们一直在等待新的治疗选择, ” Blueprint Medicines首席执行官Jeff Albers说。 “ Ayvakit是我们希望通过我们的研究平台支持的许多获批药物中的第一个。现在,当我们开始向患者及其医疗保健提供者提供Ayvakit时,我们旨在巩固我们在精准医学领域的领先地位并建立一个通过将强大的研发能力与同样专注于满足患者需求,加速诊断测试并实现访问的才华横溢的商业组织相结合,为我们更广泛的产品组合奠定基础。”
Blueprint Medicines致力于帮助PDGFRA外显子18突变GIST的患者使用Ayvakit进行治疗,并在整个治疗过程中提供强有力的支持。作为这项承诺的一部分,Blueprint Medicines推出了YourBlueprint™,这是一项患者支持计划,为接受Ayvakit的个人提供访问和负担得起的解决方案。欲了解更多信息,请访问YourBlueprint.com或致电1-888-BLUPRNT(1-888-258-7768),周一至周五,上午8:00至下午8:00。 ET。开处方Ayvakit的医疗保健提供者可以在YourBlueprint.com/HCP上填写一份注册表,以帮助患者获得Blueprint Medicines的支持服务。
治疗四线GIST的新药应用更新
蓝图医药公司今天宣布,FDA在行政上将最初的新药申请(NDA)下拟议的阿伐普利尼适应症分为两个单独的NDA:一个为FDA今天批准的PDGFRA外显子18突变体GIST,另一个为四线GIST。 第四行GIST指示的《处方药使用者费用法案》(PDUFA)行动日期目前为2020年2月14日。如先前宣布的那样,对于第四线GIST的NDA,PDUFA行动日期最多可延期三个月。 可能需要使Blueprint Medicines能够从VOYAGER提供FDA的一线数据,这是一项在三线或四线GIST中评估avapritinib与regorafenib的3期临床试验。
yvakit功效和安全性数据
Ayvakit1的功效来自NAVIGATOR试验中的43名患有PDGFRA外显子18突变的不可切除或转移性GIST的患者,其中包括38名PDGFRA D842V突变的患者。这些患者的初始剂量为每日一次300 mg(QD)或400 mg QD。根据对GIST修订的《 1.1版实体瘤的反应评估标准》(mRECIST 1.1标准),通过盲法,独立的中央放射学评估来评估疗效数据。 Ayvakit的推荐剂量为300毫克QD。 Ayvakit有100 mg,200 mg和300 mg剂量强度可供选择。
Ayvakit证实PDGFRA外显子18突变的患者在多种治疗方案中均具有持久反应。在这些患者中,ORR为84%[完全缓解(CR)7%,部分缓解(PR)77%]。在具有PDGFRA D842V突变的患者中,ORR为89%(95%CI:75%,97%; 8%CR,82%PR)。两组患者均未达到中位DOR(范围:1.9+个月,20.3 +个月)。
在NAVIGATOR试验中,对接受300 mg QD或400 mg QD剂量治疗的204例患者,评估了Ayvakit在无法切除或转移的GIST患者中的安全性。患者接受了严格的预处理,患者中位数接受了三种先前的激酶抑制剂(范围:0至7)。
Ayvakit没有禁忌症。 Ayvakit具有颅内出血,中枢神经系统影响和胚胎-胎儿毒性的警告和注意事项。最常见的不良反应(≥20%)为水肿,恶心,疲劳/乏力,认知障碍,呕吐,食欲下降,腹泻,头发颜色变化,流泪,腹痛,便秘,皮疹和头晕。
关于Ayvakit(avapritinib)
Ayvakit(avapritinib)是一种经FDA批准用于治疗具有PDGFRA外显子18突变(包括PDGFRA D842V突变)的不可切除或转移性GIST的成年人的激酶抑制剂。 Ayvakit是KIT和PDGFRA突变激酶的选择性有效抑制剂。它是唯一获得FDA批准的GIST 1型抑制剂,其通过直接结合突变KIT和PDGFRA发出信号的活性激酶构象起作用。 Ayvakit已显示出对与GIST相关的各种KIT和PDGFRA突变的抑制作用,包括针对与当前批准的疗法耐药相关的激活环突变的有效临床活性。有关更多信息,请访问Ayvakit.com。
FDA或任何其他卫生当局未批准Avapritinib在美国或任何其他司法辖区用于任何其他适应症的治疗。
Blueprint Medicines正在为广泛使用GIST治疗的阿伐普利尼以及晚期,阴燃和惰性系统性肥大细胞增多症(SM)寻求广泛的临床开发计划。 FDA已授予avapritinib突破性治疗指称,有两种适应症:一种用于治疗具有PDGFRA D842V突变的不可切除或转移性GIST,另一种用于治疗晚期SM,包括侵袭性SM的亚型,伴有相关血液肿瘤的SM和肥大细胞白血病。有关avapritinib临床试验的更多信息,请访问www.clinicaltrials.gov或www.blueprintclinicaltrials.com。
关于GIST
GIST是胃肠道的肉瘤或骨骼或结缔组织的肿瘤。肿瘤起源于胃肠道壁细胞,最常见于胃或小肠。大多数患者的诊断年龄在50至80岁之间,诊断通常是由胃肠道出血,手术或影像学过程中的偶然发现以及在极少数情况下肿瘤破裂或胃肠道梗阻引起的。
大多数GIST病例是由KIT或PDGFRA中的突变引起的,这些突变迫使蛋白激酶进入越来越活跃的状态。由于其他可用的疗法主要结合无活性的蛋白质构象,因此某些一级和二级突变通常会导致治疗耐药性并导致疾病进展。
在无法切除或转移的GIST中,现有治疗的临床获益可能因突变类型而异。突变测试对于根据潜在疾病驱动者量身定制治疗至关重要,并在专家指南中建议进行突变测试。当前,尚无针对KIT驱动的GIST病情超出伊马替尼,舒尼替尼和雷戈非尼的患者的批准疗法。在伊马替尼治疗的晚期PDGFRA D842V驱动的GIST患者中,一项回顾性研究显示ORR为0%。2
重要安全信息
接受GIST治疗的267例患者(0.7%3或4级)中有1%发生了颅内出血(例如硬脑膜下血肿,颅内出血和脑出血),而接受335例患者(1.2%3或4级)中的3%发生了颅内出血(例如硬膜下血肿,颅内出血和脑出血) Ayvakit。总体而言,接受Ayvakit的患者中有0.9%的患者因颅内出血而需要永久停药。扣留Ayvakit,然后在解决后以减少的剂量继续服用,或根据严重程度永久停用Ayvakit。
在335例接受Ayvakit治疗的患者中,中枢神经系统不良反应总体发生在58%的患者中,包括认知障碍(41%; 3.6%的3或4级),头晕(20%; 0.6%的3或4级),睡眠障碍(15%; 4%)。 0.3%的3或4级),情绪障碍(13%; 1.5的3或4级),言语障碍(6%;无3或4级)和幻觉(2.1%;无3或4级)。总体而言,有3.9%的患者因CNS不良反应而需要永久停用Ayvakit。根据严重程度,先停用Ayvakit,然后在改善时以相同剂量或减少剂量恢复使用,或永久停用Ayvakit。
给孕妇服用时,Ayvakit可能会造成胎儿伤害。建议有生殖能力的女性和有胎儿潜在危险的孕妇。劝告有生殖潜力的男性和女性在使用Ayvakit治疗期间以及最终剂量的Ayvakit使用后6周内,使用有效的避孕方法。劝告女性在使用Ayvakit治疗期间以及最终剂量后的两周内不要母乳喂养。建议具有生育潜力的雌性和雄性,说Ayvakit可能会损害生育能力。
在204例无法切除或转移的GIST患者中,最常见的不良反应(≥20%)是水肿,恶心,疲劳/乏力,认知障碍,呕吐,食欲下降,腹泻,发色变化,流泪,腹痛,便秘,皮疹和头晕。
避免将Ayvakit与强和中度CYP3A抑制剂共同给药。如果不能避免与中度CYP3A抑制剂同时给药,减低Ayvakit的剂量。避免将Ayvakit与强和中度CYP3A诱导剂共同给药。
Ayvakit(avapritinib)
公司名称:Blueprint Medicines Corporation
批准日期:2020年1月9日
治疗:胃肠道间质瘤
Ayvakit(avapritinib)是一种有效且高度选择性的KIT和PDGFRα抑制剂,可用于治疗PDGFRα外显子18突变型胃肠道间质瘤(GIST)和四线GIST
马萨诸塞州坎布里奇,2020年1月9日,美通社/-Blueprint Medicines Corporation(NASDAQ:BPMC)是一家专注于基因组定义的癌症,罕见病和癌症免疫疗法的精密治疗公司,今天宣布,美国食品药品监督管理局(美国食品药品管理局(FDA)已批准Ayvakit(avapritinib)用于治疗患有不可切除或转移性胃肠道间质瘤(GIST)的成年人,该疾病具有血小板衍生的生长因子受体α(PDGFRA)外显子18突变,包括PDGFRA D842V突变。 Ayvakit是第一种被批准用于治疗基因组明确的GIST患者的精密疗法。
FDA根据第1阶段NAVIGATOR临床试验的功效结果以及阿伐普利尼的多个临床试验的综合安全性结果,对Ayvakit给予了完全批准。在PDGFRA外显子18突变GIST的患者中,Ayvakit的总缓解率(ORR)为84%(95%CI:69%,93%),并且未达到中位缓解持续时间(DOR)。最常见的不良反应(≥20%)为水肿,恶心,疲劳/乏力,认知障碍,呕吐,食欲下降,腹泻,头发颜色变化,流泪,腹痛,便秘,皮疹和头晕。 Blueprint Medicines计划在一周内在美国提供Ayvakit。
GIST是由基因组驱动的罕见胃肠道肉瘤。新诊断为GIST的患者中约有6%有PDGFRA外显子18突变。最常见的PDGFRA外显子18突变是D842V突变,它对所有其他批准的疗法均具有抵抗力。一项回顾性研究表明,当这些患者接受伊马替尼治疗时,ORR为0%。2
“今天,Ayvakit的批准为PDGFRA外显子18突变GIST患者提供了新的护理标准,这是基因组明确的人群,以前的治疗选择非常有限。我们首次为这些患者提供了针对性治疗的高效治疗疾病的潜在遗传原因”,医学博士,俄勒冈健康与科学大学医学教授,NAVIGATOR试验的研究人员Michael Heinrich说道。 “在我们对GIST分子基础的日益了解的基础上,这一里程碑开创了该疾病精密医学的新纪元。FDA的批准标志着在采取激酶抑制剂治疗之前呼吁对所有GIST患者进行突变测试,按照临床指南的建议,适当的患者可能会意识到这种有前途的新药的好处。”
“基于我们的1期NAVIGATOR临床试验的可靠数据,Ayvakit的全面批准对于我们公司乃至更重要的是,对于PDGFRA外显子18突变的GIST患者,他们一直在等待新的治疗选择, ” Blueprint Medicines首席执行官Jeff Albers说。 “ Ayvakit是我们希望通过我们的研究平台支持的许多获批药物中的第一个。现在,当我们开始向患者及其医疗保健提供者提供Ayvakit时,我们旨在巩固我们在精准医学领域的领先地位并建立一个通过将强大的研发能力与同样专注于满足患者需求,加速诊断测试并实现访问的才华横溢的商业组织相结合,为我们更广泛的产品组合奠定基础。”
Blueprint Medicines致力于帮助PDGFRA外显子18突变GIST的患者使用Ayvakit进行治疗,并在整个治疗过程中提供强有力的支持。作为这项承诺的一部分,Blueprint Medicines推出了YourBlueprint™,这是一项患者支持计划,为接受Ayvakit的个人提供访问和负担得起的解决方案。欲了解更多信息,请访问YourBlueprint.com或致电1-888-BLUPRNT(1-888-258-7768),周一至周五,上午8:00至下午8:00。 ET。开处方Ayvakit的医疗保健提供者可以在YourBlueprint.com/HCP上填写一份注册表,以帮助患者获得Blueprint Medicines的支持服务。
治疗四线GIST的新药应用更新
蓝图医药公司今天宣布,FDA在行政上将最初的新药申请(NDA)下拟议的阿伐普利尼适应症分为两个单独的NDA:一个为FDA今天批准的PDGFRA外显子18突变体GIST,另一个为四线GIST。 第四行GIST指示的《处方药使用者费用法案》(PDUFA)行动日期目前为2020年2月14日。如先前宣布的那样,对于第四线GIST的NDA,PDUFA行动日期最多可延期三个月。 可能需要使Blueprint Medicines能够从VOYAGER提供FDA的一线数据,这是一项在三线或四线GIST中评估avapritinib与regorafenib的3期临床试验。
yvakit功效和安全性数据
Ayvakit1的功效来自NAVIGATOR试验中的43名患有PDGFRA外显子18突变的不可切除或转移性GIST的患者,其中包括38名PDGFRA D842V突变的患者。这些患者的初始剂量为每日一次300 mg(QD)或400 mg QD。根据对GIST修订的《 1.1版实体瘤的反应评估标准》(mRECIST 1.1标准),通过盲法,独立的中央放射学评估来评估疗效数据。 Ayvakit的推荐剂量为300毫克QD。 Ayvakit有100 mg,200 mg和300 mg剂量强度可供选择。
Ayvakit证实PDGFRA外显子18突变的患者在多种治疗方案中均具有持久反应。在这些患者中,ORR为84%[完全缓解(CR)7%,部分缓解(PR)77%]。在具有PDGFRA D842V突变的患者中,ORR为89%(95%CI:75%,97%; 8%CR,82%PR)。两组患者均未达到中位DOR(范围:1.9+个月,20.3 +个月)。
在NAVIGATOR试验中,对接受300 mg QD或400 mg QD剂量治疗的204例患者,评估了Ayvakit在无法切除或转移的GIST患者中的安全性。患者接受了严格的预处理,患者中位数接受了三种先前的激酶抑制剂(范围:0至7)。
Ayvakit没有禁忌症。 Ayvakit具有颅内出血,中枢神经系统影响和胚胎-胎儿毒性的警告和注意事项。最常见的不良反应(≥20%)为水肿,恶心,疲劳/乏力,认知障碍,呕吐,食欲下降,腹泻,头发颜色变化,流泪,腹痛,便秘,皮疹和头晕。
关于Ayvakit(avapritinib)
Ayvakit(avapritinib)是一种经FDA批准用于治疗具有PDGFRA外显子18突变(包括PDGFRA D842V突变)的不可切除或转移性GIST的成年人的激酶抑制剂。 Ayvakit是KIT和PDGFRA突变激酶的选择性有效抑制剂。它是唯一获得FDA批准的GIST 1型抑制剂,其通过直接结合突变KIT和PDGFRA发出信号的活性激酶构象起作用。 Ayvakit已显示出对与GIST相关的各种KIT和PDGFRA突变的抑制作用,包括针对与当前批准的疗法耐药相关的激活环突变的有效临床活性。有关更多信息,请访问Ayvakit.com。
FDA或任何其他卫生当局未批准Avapritinib在美国或任何其他司法辖区用于任何其他适应症的治疗。
Blueprint Medicines正在为广泛使用GIST治疗的阿伐普利尼以及晚期,阴燃和惰性系统性肥大细胞增多症(SM)寻求广泛的临床开发计划。 FDA已授予avapritinib突破性治疗指称,有两种适应症:一种用于治疗具有PDGFRA D842V突变的不可切除或转移性GIST,另一种用于治疗晚期SM,包括侵袭性SM的亚型,伴有相关血液肿瘤的SM和肥大细胞白血病。有关avapritinib临床试验的更多信息,请访问www.clinicaltrials.gov或www.blueprintclinicaltrials.com。
关于GIST
GIST是胃肠道的肉瘤或骨骼或结缔组织的肿瘤。肿瘤起源于胃肠道壁细胞,最常见于胃或小肠。大多数患者的诊断年龄在50至80岁之间,诊断通常是由胃肠道出血,手术或影像学过程中的偶然发现以及在极少数情况下肿瘤破裂或胃肠道梗阻引起的。
大多数GIST病例是由KIT或PDGFRA中的突变引起的,这些突变迫使蛋白激酶进入越来越活跃的状态。由于其他可用的疗法主要结合无活性的蛋白质构象,因此某些一级和二级突变通常会导致治疗耐药性并导致疾病进展。
在无法切除或转移的GIST中,现有治疗的临床获益可能因突变类型而异。突变测试对于根据潜在疾病驱动者量身定制治疗至关重要,并在专家指南中建议进行突变测试。当前,尚无针对KIT驱动的GIST病情超出伊马替尼,舒尼替尼和雷戈非尼的患者的批准疗法。在伊马替尼治疗的晚期PDGFRA D842V驱动的GIST患者中,一项回顾性研究显示ORR为0%。2
重要安全信息
接受GIST治疗的267例患者(0.7%3或4级)中有1%发生了颅内出血(例如硬脑膜下血肿,颅内出血和脑出血),而接受335例患者(1.2%3或4级)中的3%发生了颅内出血(例如硬膜下血肿,颅内出血和脑出血) Ayvakit。总体而言,接受Ayvakit的患者中有0.9%的患者因颅内出血而需要永久停药。扣留Ayvakit,然后在解决后以减少的剂量继续服用,或根据严重程度永久停用Ayvakit。
在335例接受Ayvakit治疗的患者中,中枢神经系统不良反应总体发生在58%的患者中,包括认知障碍(41%; 3.6%的3或4级),头晕(20%; 0.6%的3或4级),睡眠障碍(15%; 4%)。 0.3%的3或4级),情绪障碍(13%; 1.5的3或4级),言语障碍(6%;无3或4级)和幻觉(2.1%;无3或4级)。总体而言,有3.9%的患者因CNS不良反应而需要永久停用Ayvakit。根据严重程度,先停用Ayvakit,然后在改善时以相同剂量或减少剂量恢复使用,或永久停用Ayvakit。
给孕妇服用时,Ayvakit可能会造成胎儿伤害。建议有生殖能力的女性和有胎儿潜在危险的孕妇。劝告有生殖潜力的男性和女性在使用Ayvakit治疗期间以及最终剂量的Ayvakit使用后6周内,使用有效的避孕方法。劝告女性在使用Ayvakit治疗期间以及最终剂量后的两周内不要母乳喂养。建议具有生育潜力的雌性和雄性,说Ayvakit可能会损害生育能力。
在204例无法切除或转移的GIST患者中,最常见的不良反应(≥20%)是水肿,恶心,疲劳/乏力,认知障碍,呕吐,食欲下降,腹泻,发色变化,流泪,腹痛,便秘,皮疹和头晕。
避免将Ayvakit与强和中度CYP3A抑制剂共同给药。如果不能避免与中度CYP3A抑制剂同时给药,减低Ayvakit的剂量。避免将Ayvakit与强和中度CYP3A诱导剂共同给药。
Ayvakit (avapritinib)
Company: Blueprint Medicines Corporation
Date of Approval: January 9, 2020
Treatment for: Gastrointestinal Stromal Tumor
Ayvakit (avapritinib) is a potent and highly selective KIT and PDGFRα inhibitor for the treatment of PDGFRα Exon 18 mutant gastrointestinal stromal tumors (GIST) and fourth-line GIST
CAMBRIDGE, Mass., Jan. 9, 2020 /PRNewswire/ -- Blueprint Medicines Corporation (NASDAQ: BPMC), a precision therapy company focused on genomically defined cancers, rare diseases and cancer immunotherapy, today announced that the U.S. Food and Drug Administration (FDA) has approved Ayvakit (avapritinib) for the treatment of adults with unresectable or metastatic gastrointestinal stromal tumor (GIST) harboring a platelet-derived growth factor receptor alpha (PDGFRA) exon 18 mutation, including PDGFRA D842V mutations. Ayvakit is the first precision therapy approved to treat a genomically defined population of patients with GIST.
The FDA granted a full approval to Ayvakit based on efficacy results from the Phase 1 NAVIGATOR clinical trial, as well as combined safety results from multiple clinical trials for avapritinib. In patients with PDGFRA exon 18 mutant GIST, Ayvakit had an overall response rate (ORR) of 84 percent (95% CI: 69%, 93%), and a median duration of response (DOR) was not reached. The most common adverse reactions (≥20 percent) were edema, nausea, fatigue/asthenia, cognitive impairment, vomiting, decreased appetite, diarrhea, hair color changes, increased lacrimation, abdominal pain, constipation, rash and dizziness. Blueprint Medicines plans to make Ayvakit available in the U.S. within a week.
GIST is a rare, genomically driven sarcoma of the gastrointestinal (GI) tract. Approximately 6 percent of patients with newly diagnosed GIST have PDGFRA exon 18 mutations. The most common PDGFRA exon 18 mutation is the D842V mutation, which is resistant to all other approved therapies. A retrospective study showed that when these patients were treated with imatinib, they had an ORR of 0 percent.2
"Today's approval of Ayvakit brings forward a new standard of care for patients with PDGFRA exon 18 mutant GIST, a genomically defined population that previously had very limited treatment options. For the first time, we can offer these patients a highly effective treatment that targets the underlying genetic cause of their disease," said Michael Heinrich, M.D., Professor of Medicine at Oregon Health & Science University and an investigator on the NAVIGATOR trial. "Building on our growing understanding of the molecular basis of GIST, this milestone ushers in a new era of precision medicine in this disease. The FDA approval represents a call to action to conduct mutational testing in all patients with GIST before initiating kinase inhibitor therapy, as recommended by clinical guidelines, so appropriate patients may realize the benefits of this promising new medicine."
"The full approval of Ayvakit based on robust data from our Phase 1 NAVIGATOR clinical trial is an incredibly exciting milestone for our company and, more importantly, for GIST patients with a PDGFRA exon 18 mutation, who have been waiting for a new treatment option," said Jeff Albers, Chief Executive Officer at Blueprint Medicines. "Ayvakit is the first of what we hope will be many approved medicines enabled by our research platform. Now, as we begin to deliver Ayvakit to patients and their healthcare providers, we aim to fortify our leadership in the field of precision medicine and build a foundation for our broader portfolio by pairing our strong research and development capabilities with an equally talented commercial organization focused on addressing patient needs, accelerating diagnostic testing and enabling access."
Blueprint Medicines is dedicated to helping patients with PDGFRA exon 18 mutant GIST access treatment with Ayvakit and providing robust support throughout their treatment journey. As part of this commitment, Blueprint Medicines is introducing YourBlueprint™, a patient support program that offers access and affordability solutions for individuals receiving Ayvakit. For more information, visit YourBlueprint.com or call 1-888-BLUPRNT (1-888-258-7768), Monday to Friday, 8:00 a.m. to 8:00 p.m. ET. Healthcare providers who prescribe Ayvakit can fill out an enrollment form at YourBlueprint.com/HCP to help patients access Blueprint Medicines' support services.
Update on New Drug Application for the Treatment of Fourth-Line GIST
Blueprint Medicines today announced that the FDA administratively split the proposed indications for avapritinib under the initial New Drug Application (NDA) into two separate NDAs: one for PDGFRA exon 18 mutant GIST, which the FDA approved today, and one for fourth-line GIST. The Prescription Drug User Fee Act (PDUFA) action date for the fourth-line GIST indication is currently February 14, 2020. As previously announced, for the NDA for fourth-line GIST an extension of up to three months for the PDUFA action date will likely be required to enable Blueprint Medicines to provide top-line data to the FDA from VOYAGER, a Phase 3 clinical trial evaluating avapritinib versus regorafenib in third- or fourth-line GIST.
Ayvakit Efficacy and Safety Data
The efficacy of Ayvakit1 was established from 43 patients in the NAVIGATOR trial with unresectable or metastatic GIST harboring PDGFRA exon 18 mutations, including 38 patients with PDGFRA D842V mutations. These patients were treated at starting doses of either 300 mg once daily (QD) or 400 mg QD. Efficacy data were evaluated by blinded, independent central radiology review, based on modified Response Evaluation Criteria in Solid Tumors version 1.1 (mRECIST 1.1 criteria) for GIST. The recommended dose of Ayvakit is 300 mg QD. Ayvakit is available in 100 mg, 200 mg and 300 mg dose strengths.
Ayvakit demonstrated durable responses in patients with PDGFRA exon 18 mutations across multiple lines of treatment. In these patients, the ORR was 84 percent [7 percent complete responses (CR), 77 percent partial responses (PR)]. In patients with PDGFRA D842V mutations, the ORR was 89 percent (95% CI: 75%, 97%; 8 percent CR, 82 percent PR). The median DOR was not reached in either patient population (range: 1.9+ months, 20.3+ months).
The safety of Ayvakit in patients with unresectable or metastatic GIST was evaluated in 204 patients who received 300 mg QD or 400 mg QD dosing in the NAVIGATOR trial. Patients were heavily pre-treated, with patients receiving a median of three prior kinase inhibitors (range: 0 to 7).
There are no contraindications for Ayvakit. Ayvakit has warnings and precautions of intracranial hemorrhage, central nervous system effects and embryo-fetal toxicity. The most common adverse reactions (≥20 percent) were edema, nausea, fatigue/asthenia, cognitive impairment, vomiting, decreased appetite, diarrhea, hair color changes, increased lacrimation, abdominal pain, constipation, rash and dizziness.
About Ayvakit (avapritinib)Ayvakit (avapritinib) is a kinase inhibitor approved by the FDA for the treatment of adults with unresectable or metastatic GIST harboring a PDGFRA exon 18 mutation, including PDGFRA D842V mutations. Ayvakit is a selective and potent inhibitor of KIT and PDGFRA mutant kinases. It is the only FDA-approved type 1 inhibitor for GIST that works by directly binding to the active kinase conformation from which mutant KIT and PDGFRA signal. Ayvakit has demonstrated inhibition of a broad range of KIT and PDGFRA mutations associated with GIST, including potent clinical activity against activation loop mutations that are associated with resistance to currently approved therapies. For more information, visit Ayvakit.com.
Avapritinib is not approved for the treatment of any other indication in the U.S. or any other jurisdiction by the FDA or any other health authority.
Blueprint Medicines is pursuing a broad clinical development program for avapritinib across multiple lines of GIST treatment, as well as for advanced, smoldering and indolent systemic mastocytosis (SM). The FDA has granted Breakthrough Therapy Designation to avapritinib for two indications: one for the treatment of unresectable or metastatic GIST harboring the PDGFRA D842V mutation and one for the treatment of advanced SM, including the subtypes of aggressive SM, SM with an associated hematologic neoplasm and mast cell leukemia. For more information about avapritinib clinical trials, visit www.clinicaltrials.gov or www.blueprintclinicaltrials.com.
About GISTGIST is a sarcoma, or tumor of bone or connective tissue, of the GI tract. Tumors arise from cells in the wall of the GI tract and occur most often in the stomach or small intestine. Most patients are diagnosed between the ages of 50 to 80, and diagnosis is typically triggered by GI bleeding, incidental findings during surgery or imaging and, in rare cases, tumor rupture or GI obstruction.
Most GIST cases are caused by mutations in KIT or PDGFRA that force protein kinases into an increasingly active state. Because other available therapies primarily bind to the inactive protein conformations, certain primary and secondary mutations typically result in treatment resistance and lead to disease progression.
In unresectable or metastatic GIST, clinical benefits from existing treatments can vary by mutation type. Mutational testing is critical to tailor therapy to the underlying disease driver and is recommended in expert guidelines. Currently, there are no approved therapies for patients with KIT-driven GIST whose disease progresses beyond imatinib, sunitinib and regorafenib. In patients with advanced PDGFRA D842V-driven GIST treated with imatinib, a retrospective study showed an ORR of 0 percent.2
Important Safety InformationIntracranial hemorrhage (e.g., subdural hematoma, intracranial hemorrhage, and cerebral hemorrhage) occurred in 1% of 267 patients (0.7% Grade 3 or 4) with GIST and overall in 3% of 335 patients (1.2% Grade 3 or 4) who received Ayvakit. Overall, 0.9% of patients receiving Ayvakit required permanent discontinuation for an intracranial hemorrhage. Withhold Ayvakit and then resume at a reduced dose upon resolution, or permanently discontinue Ayvakit based on severity.
In 335 patients receiving Ayvakit, CNS adverse reactions occurred overall in 58% of patients including cognitive impairment (41%; 3.6% Grade 3 or 4), dizziness (20%; 0.6% Grade 3 or 4), sleep disorders (15%; 0.3% Grade 3 or 4), mood disorders (13%; 1.5% Grade 3 or 4), speech disorders (6%; none Grade 3 or 4), and hallucinations (2.1%; none Grade 3 or 4). Overall, 3.9% of patients required permanent discontinuation of Ayvakit for a CNS adverse reaction. Depending on severity, withhold Ayvakit and then resume at the same dose or at a reduced dose upon improvement, or permanently discontinue Ayvakit.
Ayvakit can cause fetal harm when administered to a pregnant woman. Advise females of reproductive potential and pregnant women of the potential risk to a fetus. Advise females and males of reproductive potential to use an effective method of contraception during treatment with Ayvakit and for 6 weeks after the final dose of Ayvakit. Advise women not to breastfeed during treatment with Ayvakit and for two weeks after the final dose. Advise females and males of reproductive potential that Ayvakit may impair fertility.
In 204 patients with unresectable or metastatic GIST, the most common adverse reactions (≥ 20%) were edema, nausea, fatigue/asthenia, cognitive impairment, vomiting, decreased appetite, diarrhea, hair color changes, increased lacrimation, abdominal pain, constipation, rash and dizziness.
Avoid coadministration of Ayvakit with strong and moderate CYP3A inhibitors. If coadministration with a moderate CYP3A inhibitor cannot be avoided, reduce dose of Ayvakit. Avoid coadministration of Ayvakit with strong and moderate CYP3A inducers.
About Blueprint MedicinesBlueprint Medicines is a precision therapy company striving to improve human health. With a focus on genomically defined cancers, rare diseases and cancer immunotherapy, we are developing transformational medicines rooted in our leading expertise in protein kinases, which are proven drivers of disease. Our uniquely targeted, scalable approach empowers the rapid design and development of new treatments and increases the likelihood of clinical success. We have one FDA-approved precision therapy and are currently advancing multiple investigational medicines in clinical development, along with a number of research programs. For more information, visit www.BlueprintMedicines.com and follow us on Twitter (@BlueprintMeds) and LinkedIn.