

Alunbrig Brigatinib

通用中文 | Brigatinib | 通用外文 | Brigatinib |
品牌中文 | 品牌外文 | Alunbrig | |
其他名称 | 靶点ALK | ||
公司 | ARIAD(ARIAD) | 产地 | 瑞士(Switzerland) |
含量 | 30mg | 包装 | 180片/盒 |
剂型给药 | 片剂 口服 | 储存 | 室温 |
适用范围 | 用于局部晚期和转移性肺癌, 经克唑替尼(Crizotinib )治疗后病情进展的. |
通用中文 | Brigatinib |
通用外文 | Brigatinib |
品牌中文 | |
品牌外文 | Alunbrig |
其他名称 | 靶点ALK |
公司 | ARIAD(ARIAD) |
产地 | 瑞士(Switzerland) |
含量 | 30mg |
包装 | 180片/盒 |
剂型给药 | 片剂 口服 |
储存 | 室温 |
适用范围 | 用于局部晚期和转移性肺癌, 经克唑替尼(Crizotinib )治疗后病情进展的. |
Alunbrig (brigatinib)片使用说明书2017年4月第一版
批准日期:4月28,2017;公司:Takeda Pharmaceutical 公司 Limited
治疗为:非小细胞肺癌
处方资料重点
这些重点不包括安全和有效使用ALUNBRIG需所有资料。请参阅ALUNBRIG完整处方资料。
ALUNBRIGTM (brigatinib)片,为口服使用
美国初次批准:2017
适应证和用途
ALUNBRIG是一种激酶抑制剂适用为有间变性淋巴瘤激酶(ALK)-阳性转移非小细胞肺癌(NSCLC)患者对用克里唑蒂尼[crizotinib]已进展或是不能耐受患者的治疗。这个适应证是根据肿瘤反应率和反应时间在加快批准[accelerated approval]。对这个适应证继续批准可能取决于在验证性试验的确证和临床获益的描述。(1)
剂量和给药方法
对头7天90 mg口服每天1次,如耐受,增加至180 mg口服每天1次。可能有或无食物服用。(2.1)
剂型和规格
片:30 mg和90 mg (3)
禁忌证
无。(4)
警告和注意事项
● 间质性肺病(ILD)/肺炎:在推荐剂量时发生在9.1%的患者。监视对新或变坏的呼吸症状,尤其是在治疗的第一周。对新或变坏的呼吸症状不给ALUNBRIG和及时对ILD/肺炎评价。恢复时,或减低剂量或永久地终止ALUNBRIG。(2.2,5.1)
● 高血压:治疗期间监视血压2周后和然后至少每月。对严重高血压,不给ALUNBRIG,然后剂量减低或永久地终止。(2.2,5.2)
● 心动过缓:治疗期间有规律地监视心率和血压。如症状性,不给ALUNBRIG,然后剂量减低或永久地终止。(2.2,5.3)
● 视力障碍:建议患者报告视力症状。不给ALUNBRIG和得到眼科评价,然后减低剂量或永久地终止ALUNBRIG (2.2,5.4)
● 肌酸磷酸激酶(CPK)升高:治疗期间有规律地监视CPK水平。根据严重程度,不给ALUNBRIG,然后恢复或减低剂量。(2.2,5.5)
● 胰酶升高:治疗期间有规律地监视脂肪酶和淀粉酶水平。根据严重程度,不给ALUNBRIG,然后恢复或减低剂量。(2.2,5.6)
● 高血糖:ALUNBRIG开始前和治疗期间常规地评估空腹血清葡萄糖。如不能用最优药物处理控制,不给ALUNBRIG,然后,根据严重程度考虑剂量减低或永久地终止。(2.2,5.7)
● 胚胎胎儿毒性:可能致胎儿危害。 忠告有生殖潜能女性对胎儿潜在风险。和使用非激素有效避孕方法。 (5.8,8.1,8.3)
不良反应
用ALUNBRIG最常见不良反应(≥25%)为恶心,腹泻,疲乏,咳嗽,和头痛。(6)
报告怀疑不良反应,联系ARIAD Pharmaceuticals,Inc.电话1-844-217-6468或www.alunbrig.com或FDA电话1-800-FDA-1088或www.fda.gov/medwatch.
药物相互作用
● CYP3A抑制剂:避免ALUNBRIG与强CYP3A抑制剂的同时使用。如一种强CYP3A抑制剂的同时使用是不能避免。减低ALUNBRIG的剂量。(2.3,7.1)
● CYP3A诱导剂:避免ALUNBRIG与强CYP3A 诱导剂的同时使用。. (7.2)
● CYP3A底物:激素避孕药可能是无效由于减低暴露。(7.3)
在特殊人群中使用
哺乳:建议不哺乳喂养。 (8.2)
完整处方资料
1 适应证和用途
ALUNBRIG是适用为有间变性淋巴瘤激酶(ALK)-阳性转移非小细胞肺癌(NSCLC)用或是不能耐受对克里唑蒂尼已进展患者的治疗.
这个适应证是根据肿瘤反应率和反应时间在加快批准[accelerated approval]下被批准 [见临床研究(14) 。继续批准这个适应证可能取决于试验的确证和在验证性试验中临床获益和描述。
2 剂量和给药方法
2.1 推荐给药
为ALUNBRIG推荐的给药方案是:
● 90 mg口服每天1次共头7天;
● 如头7天期间90 mg被耐受,增加剂量至180 mg口服每天1次。
给予ALUNBRIG直至疾病进展或不能接受毒性。.
如ALUNBRIG被中断共14天或更长为理由除了不良反应,增加至以前耐受剂量前恢复治疗在90 mg每天1次共7天。ALUNBRIG可被有或无食物服用。指导患者整吞片。不要压碎或咀嚼片。如一个剂量ALUNBRIG被缺失或服用一剂后发生呕吐,不要给予附加剂量和服用ALUNBRIG在给药实践表时间下一剂量。
2.2 对不良反应剂量修饰
在表1中总结了ALUNBRIG剂量修饰水平。
对不良反应一旦减低随后地不随ALUNBRIG 剂量增加。如患者不能60 mg每天1次剂量永久地终止ALUNBRIG。表2提供为处理不良反应对推荐ALUNBRIG修饰剂量。
2.3 对强CYP3A抑制剂剂量修饰
避免强CYP3A抑制剂治疗期间用ALUNBRIG的同时使用[见药物相互作用(7.1)和临床药理学(12.3)]。如一个强CYP3A抑制剂的同时使用不能避免,减低ALUNBRIG每天1次剂量约50% (如,从180 mg至90 mg,或从90 mg至60 mg)。一个强CYP3A抑制剂的终止后,恢复开始强CYP3A抑制剂前被耐受的ALUNBRIG剂量。
3 剂型和规格
● 30 mg,圆,白色至灰白色膜包衣片在一侧有“U3”凹陷和其他侧平坦
● 90 mg,椭圆形,白色至灰白色膜包衣片一侧有 “U7”凹陷和其他侧平坦
4 禁忌证
无。
5 警告和注意事项
5.1 间质性肺病(ILD)/肺炎
用ALUNBRIG曽发生严重,危及生命,和致命肺不良反应与间质性肺病 (ILD)/肺炎一致。
在试验ALTA(ALTA)中,在90 mg组(90 mg每天1次)发生ILD/肺炎在3.7%患者和9.1% of患者在90→180 mg组(180 mg每天1次在90 mg每天1次用7-天导入)。
不良反应可能性ILD/肺炎一致较早发生(ALUNBRIG发开始9天内;中位发病为2天)在6.4%患者,有级别3至4 r反应发生在2.7%。
监视对新或变坏的呼吸症状(如,呼吸困难,咳嗽,等),尤其是开始ALUNBRIG的第一周期间。在任何患者有新或变坏的呼吸症状不给ALUNBRIG,和及时评价对ILD/肺炎或其他原因的呼吸症状(如,肺栓塞,肿瘤进展,和感染性肺炎)。对级别1或2 ILD/肺炎,或恢复ALUNBRIG 用剂量减低按照表1恢复至基线后或永久地终止ALUNBRIG。对级别3或4 ILD/肺炎或级别1或2 ILD/肺炎的复发永久地终止ALUNBRIG [见剂量和给药方法(2.2)和不良反应(6.1)]。
5.2 高血压
在ALTA中,在90 mg组接受ALUNBRIG报告高血压在11%患者和在90→180 mg 组为21%患者。总体在5.9%患者发生级别3高血压。
在治疗用ALUNBRIG前控制血压。用ALUNBRIG治疗期间其后至少每月监视血压后2周。不给ALUNBRIG对级别3高血压尽管优化抗高血压治疗,解决或改善至级别1严重程度,在一个减低剂量恢复ALUNBRIG考虑永久终止治疗用ALUNBRIG对级别4高血压或级别3高血压的复发[见剂量和给药方法(2.2)和不良反应(6.1)]。
谨慎使用当给予ALUNBRIG与致心动过缓抗高血压剂联用[见警告和注意事项(5.3)].
5.3 心动过缓
用ALUNBRIG可能发生心动过缓。在ALTA中,在90 mg组5.7%患者发生心率低于50跳每分(bpm)和在90→180 mg组为7.6%患者。在90 mg组级别1例(0.9%)患者发生2级心动过缓。
用ALUNBRIG治疗期间监视心率和血压。如已知同时使用药物不能避免的致心动过缓更频繁监视患者[见警告和注意事项(5.2)]。
对症状性心动过缓,不给ALUNBRIG和检查同时药物对那些已知致心动过缓。如被鉴定一个同时药物已知致心动过缓和终止或剂量调整,恢复ALUNBRIG在解决症状性心动过缓后相同剂量;否则,减低ALUNBRIG剂量后解决症状性心动过缓。对危及生命心动过缓如没有贡献的同时药物被鉴定终止ALUNBRIG [见剂量和给药方法(2.2)]。
5.4 视力障碍
在ALTA中,不良反应导致视力障碍包括视力模糊,复视,和视力减低被报道在7.3%患者接受ALUNBRIG在90 mg组和10%患者在 90→180 mg组。级别3黄斑水肿和白内障发生一例患者 各在90→180 mg组。
建议患者报告任何视力症状。不给ALUNBRIG和得到一个眼科学评价在患者有新或变坏的的视力症状级别2或更大严重程度。级别2或级别3视力障碍的恢复至级别1 严重程度或基线,永久地终止治疗用ALUNBRIG对级别4视力障碍[见剂量和给药方法(2.2)和不良反应(6.1)]。
5.5 肌酸磷酸激酶(CPK)升高
在ALTA中,在90 mg组肌酸磷酸激酶(CPK)升高发生在27%患者接受ALUNBRIG和48%患者在90 mg→180 mg组。在90 mg组CPK升高的发生率级别3-4为2.8%和在90→180 mg组12%。
在90 mg组1.8%患者对CPK升高剂量减低发生剂量减低和在90→180 mg组为4.5%。
建议患者报告任何不能解释的肌肉痛,压痛,或软弱。ALUNBRIG治疗期间监视CPK水平。对级别3或4 CPK升高不给ALUNBRIG。在解决或恢复至级别1或基线,在相同剂量或在表2中所述一个减低剂量恢复ALUNBRIG[见剂量和给药方法(2.2)和不良反应(6.1)].
5.6 胰酶升高
在ALTA中,在90 mg组27%患者和在 90→180 mg组39%患者发生淀粉酶升高。在90 mg组脂肪酶升高发生21%患者和在90→180 mg组45%患者。在90 mg组级别3或4 淀粉酶升高 发生3.7%患者和在90→180 mg组为2.7%患者。在90 mg组级别3或4脂肪酶升高发生4.6%患者和在90→180 mg组为5.5%患者。
用ALUNBRIG治疗期间监视脂肪酶和淀粉酶。对级别3或4胰酶升高不给ALUNBRIG。在解决或恢复至级别1或基线时,在相同剂量或在表2中所述一个减低剂量恢复ALUNBRIG[见剂量和给药方法(2.2)和不良反应(6.1)]。
5.7 高血糖
在ALTA中,43%的接受ALUNBRIG患者经受新或变坏的高血糖。级别3高血糖,根据实验室.血清空腹葡萄糖水平的评估,发生在3.7%患者。2/20例(10%)患者有糖尿病或葡萄糖不能耐受在基线要求胰岛素开始当接受ALUNBRIG.
ALUNBRIG的开始前评估空腹血清葡萄糖和其后定期地监视。需要开始或优化抗高血糖药物。如用优化医疗处理不能实现适当高血糖控制,不给ALUNBRIG直至实现适当高血糖控制,和如表1中所述考虑减低 ALUNBRIG剂量,或永久地终止ALUNBRIG[见剂量和给药方法(2.2)和不良反应(6.1)]。
5.8 胚胎胎儿毒性
根据其作用机制和动物中发现,ALUNBRIG可能致胎儿危害当给予妊娠妇女。没有在妊娠妇女使用ALUNBRIG临床数据。在器官形成阶段期间给予brigatinib妊娠大鼠导致剂量-相关骨骼异常在剂量低如12.5 mg/kg/day(人暴露按AUC在180 mg每天1次约0.7倍)以及增加植入后丢失,畸形,和减低胎儿体重在剂量25 mg/kg/day (人暴露在180 mg每天1次约1.26倍)或更高。
忠告妊娠妇女对胎儿潜在风险。建议生殖潜能女性用ALUNBRIG治疗期间和末次剂量后共至少4个月使用有效非激素避孕。建议有生殖潜能女性伴侣ALUNBRIG治疗期间和末次剂量后共至少3个月使用有效避孕[见在特殊人群中使用(8.1和8.3)和临床药理学(12.1)]。
6. 不良反应
在处方资料的其他节中更详细讨论以下不良反应:
● 间质性肺病 (ILD)/肺炎[见警告和注意事项(5.1)]
● 高血压[见警告和注意事项(5.2)]
● 心动过缓[见警告和注意事项(5.3)]
● 视力障碍[见警告和注意事项(5.4)]
● 肌酸磷酸激酶(CPK)升高[见警告和注意事项(5.5)]
● 胰酶升高[见警告和注意事项(5.6)]
● 高血糖[见警告和注意事项(5.7)]
6.1 临床试验经验
因为临床试验是在广泛不同情况下进行的,临床试验观察到不良反应率不能与另一种药临床试验发生率直接比较而且可能不反映实践中观察到的发生率。
在219患者有局部地晚期或转移ALK-阳性非小细胞肺癌(NSCLC)患者接受至少一剂ALUNBRIG 在ALTA中经受用克里唑蒂尼后疾病进展评价ALUNBRIG的安全性。患者连续地接受ALUNBRIG 90 mg每天1次(90 mg组)或90 mg每天1次共7天接着用180 mg每天1次(90→180 mg组)。在90 mg组中位治疗时间为7.5个月和在90→180 mg组为7.8个月。总共150例(68%)患者被暴露至ALUNBRIG共大于或等于6个月和42 (19%)患者被暴露共大于或等于一年。.
研究人群特征为:中位年龄54岁(范围:18至82),年龄低于65 岁(77%),女性(57%),白种人(67%),亚裔(31%),阶段IV 疾病(98%),NSCLC腺癌病史(97%),永未或以前吸烟者(95%),ECOG性能状态(PS) 0或1 (93%),和在基线脑转移(69%)[见临床研究(14)]。
在90 mg组严重的不良反应发生在38%患者和在90→180 mg组为40%患者。最常见严重的不良反应为肺 (5.5%总体,3.7%在90 mg组,和7.3%在90→180 mg组)和ILD/肺炎(4.6%总体,1.8%在90 mg组和7.3%在90→180 mg组)。致命不良反应发生在3.7%患者和组成为肺炎(2例患者),猝死,呼吸困难,呼吸衰竭,肺栓塞,细菌性脑膜炎和尿脓毒病 (各1例患者)。
在ALTA中,为不良反应在90 mg组2.8%患者和在90→180 mg组8.2%患者永久地终止ALUNBRIG。最频繁不良反应导致终止为ILD/肺炎(0.9%在90 mg组和1.8%在90→180 mg组)和肺炎(1.8%仅在90→180 mg组)。
在ALTA中,14%患者由于不良反应需要剂量减低(7.3%在90 mg组和20%在90→180 mg组). 对两个方案最常见不良反应导致剂量减低为增加肌酸磷酸激酶(1.8%在90 mg组和4.5%在 90→180 mg组)。
表3和表4总结在ALTA中观察到常见不良反应和实验室异常。
7药物相互作用
7.1 可能增加Brigatinib血浆浓度的药物
强CYP3A抑制剂
伊曲康唑,一种强CYP3A抑制剂共同给药,增加brigatinib血浆浓度和可能导致增加不良反应[见临床药理学(12.3)]。避免强CYP3A抑制剂与ALUNBRIG的同时使用,包括但不限于某些抗病毒药(如,波普瑞韦[boceprevir],cobicistat,茚地那韦[indinavir],洛匹那韦[lopinavir],奈非那韦[nelfinavir],利托那韦[ritonavir],沙奎那韦[saquinavir]),大环内酯类抗生素如,克拉霉素[clarithromycin]),抗真菌药如,伊曲康唑,酮康唑[ketoconazole],泊沙康唑[posaconazole],伏立康唑[voriconazole]),和考尼伐坦[conivaptan]。避免葡萄柚或葡萄柚汁因它也可能增加brigatinib血浆浓度[见临床药理学(12.3)]。如一个强CYP3A抑制剂的同时使用 不能避免,减低ALUNBRIG剂量约50%[见剂量和给药方法(2.3)],
7.2 可能减低Brigatinib血浆浓度药物
强CYP3A 诱导剂
ALUNBRIG与利福平,一种强CYP3A诱导剂的共同给药,减低brigatinib血浆浓度和可能导致减低效[见临床药理学(12.3)]。避免强CYP3A诱导剂与ALUNBRIG的同时使用,包括但不限于利福平,卡马西平[carbamazepine],苯妥英[benphenytoin]和圣约翰草[St. John’s Wort][见临床药理学(12.3)]。
7.3 被Brigatinib改变它们的血浆浓度的药物
CYP3A底物
Brigatinib在体外诱导CYP3A和可能减低CYP3A底物的浓度。ALUNBRIG与CYP3A底物的共同给药,包括激素避孕药,可能导致CYP3A底物减低浓度和丧失疗效[见在特殊人群中使用(8.3)]。
8 在特殊人群中使用
8.1 妊娠
风险总结
根据其作用机制和动物中发现,当给予一位妊娠妇女ALUNBRIG可能致胎儿危害[见数据和临床药理学(12.1)]。没有在妊娠妇女中使用ALUNBRIG临床数据。在器官形成阶段给予 brigatinib至妊娠大鼠导致剂量-相关骨骼异常在剂量一个低如12.5 mg/kg/day(按AUC在180 mg每天1次约0.7倍人暴露)以及增加植入后丢失,畸形,和减低胎儿体重在剂量25 mg/kg/day(人暴露在180 mg每天1次约1.26倍)或更大。如在妊娠期间使用这个药物,或患者服用药物时成为妊娠,忠告患者对胎儿潜在风险。
在美国一般人群,重大出生缺陷和临床上认可流产的估算背景风险分别是2%至4%和15%至20%。
数据
动物数据
在一项胚胎胎儿发育研究其中妊娠大鼠在器官形成期被给予每天剂量brigatinib,观察到剂量-相关骨骼(不完全骨化,小门牙)和内脏异常在剂量低如12.5 mg/kg/day (约0.7倍按AUC在180 mg每天1次人暴露)。在25 mg/kg/day观察到畸形(人AUC在180 mg每天1次约1.26倍) 包括全身水肿(普遍性皮下水肿),无眼畸形(缺乏眼),前肢过度弯曲,小,短和/或弯曲肢体,多个融合肋骨,弯曲肩胛骨,脐疝,和 腹裂畸形与内脏侧脑室的中度双侧扩张内脏发现在一起。
8.2 哺乳
风险总结
没有关于brigatinib分泌在人乳汁或对哺乳喂养婴儿或乳汁产生影响的数据。因为对在哺乳喂养婴儿不良反应潜能,建议用ALUNBRIG治疗期间和最后剂量后共一周哺乳妇女不要哺乳喂养。.
8.3 生殖潜能女性和男性
避孕
ALUNBRIG可能致胎儿危害[见在特殊人群中使用(8.1)].
女性
建议生殖潜能女性使用有效非激素避孕用 ALUNBRIG治疗期间和末次剂量后共至少4个月。 与患者商讨使用非激素避孕方法因为ALUNBRIG可能使有些激素避孕无效[见药物相互作用(7.3]).
男性
因为对遗传毒性潜能,建议有女性生殖潜能伴侣男性用ALUNBRIG治疗期间和剂量后至少末次至少 3个月使用有效避孕 [见非临床毒理学(13.1)].
不孕不育
根据在动物中男性生殖器官发现,ALUNBRIG在男性中可能致减低生育力[见非临床毒理学(13.1)]。
8.4 儿童使用
尚未确定在儿童患者中ALUNBRIG的安全性和疗效。
8.5 老年人使用
ALUNBRIG的临床研究没有包括充分数量年龄65岁和以上患者以确定他们反应是否不同于较年轻患者。在ALTA中222患者,19.4%为65-74岁和4.1为75岁或以上。患者≥65岁和较年轻患者间未观察到在安全性或疗效中临床上相关差别。.
8.6 肝受损
对有轻度肝受损患者建议无剂量调整(总胆红素正常上限 [ULN] 内和AST大于ULN或总胆红素大于1和至1.5倍ULN和任何AST)。尚未在有中度或严重肝受损患者研究ALUNBRIG 的药代动力学和安全性[见临床药理学(12.3)]。
8.7 肾受损
对有轻度和中度肾受损患者[被Cockcroft-Gault估算的肌酐清除率(CLcr) 30至89 mL/min)]建议无剂量调整。未曽在有严重肾受损患者(被Cockcroft-Gault估算CLcr 15至29 mL/min)研究ALUNBRIG 的药代动力学和安全性[见临床药理学(12.3)]。
11 一般描述
Brigatinib是一种激酶抑制剂。对brigatinib化学名是5-chloro-N4-[2-(dimethylphosphoryl)phenyl]-N2-{2-methoxy-4[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}pyrimidine-2,4-diamine。分子式为C29H39ClN7O2P 它相当于分子量584.10 g/mol。Brigatinib没有手性中心。化学结构式显示如下:
Brigatinib是一种灰白色米色棕褐色固体。pK当被测定是:1.73 ± 0.02 (碱),3.65 ± 0.01 (碱),4.72 ± 0.01 (碱),和8.04 ± 0.01 (碱)。
ALUNBRIG作为薄膜包衣片为口服供应含30 mg或90 mg的brigatinib和以下无活性成分:一水乳糖,微晶纤维素,羧基乙酸淀粉钠(型A),硬脂酸镁,和疏水胶体二氧化硅。片包被组成滑石,聚乙二醇,聚乙烯醇,和二氧化钛。.
12. 临床药理学
12.1 作用机制
Brigatinib是一种酪氨酸激酶抑制剂有在体外活性在临床上可实现浓度对多种激酶包括ALK,ROS1,胰岛素-样生长因子-1受体(IGF-1R),和FLT-3以及 EGFR缺失和点突变。Brigatinib 抑制的的自身磷酸化ALK和ALK-介导的下游信号蛋白STAT3,AKT,ERK1/2,和S6在体外中和体内分析中的磷酸化。Brigatinib还抑制在体外表达EML4-ALK和NPM-ALK融合蛋白细胞系的增殖和显示EML4-ALK-阳性NSCLC异种移植物生长剂量-依赖抑制作用。
在临床上可实现浓度(≤ 500 nM),brigatinib抑制在体外表达EML4-ALK细胞的变异性和17突变体形成与对ALK抑制剂 包括克里唑蒂尼,以及EGFR-Del (E746-A750),ROS1-L2026M,FLT3-F691L,和FLT3-D835Y耐药性关联。Brigatinib表现出体内抗-肿瘤活性对4种EML4-ALK的突变体形式,包括在用克里唑蒂尼已进展患者的NSCLC肿瘤鉴定的G1202R和L1196M突变体。Brigatinib 还减低在用一个ALK-驱动肿瘤细胞系颅内地植入小鼠肿瘤负荷和延长生命。
12.2 药效动力学
不知道Brigatinib 暴露-反应相互关系药效动力学反应的时间过程。
心脏电生理学
在123例患者following每天1次ALUNBRIG剂量30 mg (被批准的180 mg剂量的1/6th 的剂量)至240 mg (被批准180 mg剂量的1.3倍)后评估ALUNBRIG延长QT 间期的潜能。ALUNBRIG 不延长QT间期至临床上相关程度。
12.3 药代动力学
ALUNBRIG剂量90 mg和180 mg每天1次brigatinib几何均数(CV%)稳态最高浓度(Cmax)分别是552 (65%) ng/mL和1452 (60%) ng/mL,和相应的浓度时间曲线下面积(AUC0-Tau)为(57%) ng·h/mL和20276 (56%)ng·h/mL。ALUNBRIG的一个单次剂量和重复给药,brigatinib的全身暴露为剂量正比例跨越剂量范围60 mg(0.3倍批准80 mg的剂量)至240 mg(1.3倍批准的180 mg剂量)每天1次。在重复给药后均数积蓄比为1.9至2.4。
吸收
ALUNBRIG的单次口服剂量30至240 mg给药后,中位达峰浓度时间(Tmax)范围从1至4小时.
食物的影响
在健康受试者给予ALUNBRIG一个高脂肪餐后(约920卡路里,58克碳水化合物,59克脂肪和40克蛋白)与过夜后空腹Cmax和AUC比较,对Brigatinib Cmax被减低13%与对AUC无影响。
分布
Brigatinib是66%结合至人血浆蛋白和在体外结合不是浓度依赖。血-与-血浆浓度比为0.69。 ALUNBRIG 180 mg的口服给药后每天1次,稳态时brigatinib的均数表观分布容积(Vz/F)为153 L。
消除
ALUNBRIG 180 mg的口服给药后每天1次,在稳态时brigatinib的均数表观口服清除率(CL/F) 为12.7 L/h和均数血浆半衰期为25小时。
代谢
Brigatinib在体外是主要地被CYP2C8和CYP3A4代谢。一个单次180 mg剂量的放射标记brigatinib对健康受试者的口服给药后,N-去甲基化作用和半胱氨酸结合作用是两个主要代谢途径。未变化的brigatinib (92%)和其主要代谢物,AP26123 (3.5%),是主要循环放射性组分。在患者中AP26123的稳态AUC为低于brigatinib暴露的AUC 10%。在体外代谢物,AP26123,比brigatinib被抑制的ALK有约3-倍较低效力。
排泄
一个单次180 mg剂量的放射性标记的对健康受试者的口服给药后,在粪中回收给予剂量的65%和在尿中回收给予剂量的25%。在粪和尿中未变d化brigatinib分别代表总放射性的41%和86%。
特殊人群
年龄,种族,性别,体重,和白蛋白浓度对brigatinib的药代动力学无临床意义的影响。
肝受损
因为对brigatinib肝消除是排泄的主要途径,肝受损可能导致增加血浆brigatinib浓度。根据一项群体药代动力学分析,49例有轻度肝受损受试者(总胆红素正常上限[ULN]内和AST大于ULN或总胆红素大于1和至1.5倍ULN和任何AST)和377例有正常肝功能受试者(总胆红素和AST ULN内)间brigatinib暴露相似。未曽研究有中度(总胆红素大于1.5和至3.0倍ULN和任何AST)至严重(总胆红素大于3.0倍ULN和任何AST)肝受损患者中brigatinib的药代动力学。
肾受损
根据一项群体药代动力学分析,125受试者有轻度肾受损 (CLcr 60至低于90 mL/min),34受试者有中度肾受损(CLcr 30至低于60 mL/min)和270受试者有正常肾功能(CLcr大于或等于90 mL/min)中brigatinib暴露相似,提示在有轻度至中度肾受损患者无需剂量调整。在临床试验中未包括严重肾受损患者(CLcr低于30 mL/min)。
药物相互作用
其他药物对Brigatinib的影响
强CYP3A抑制剂: of 200 mg每天2次剂量的伊曲康唑[itraconazole](一种强CYP3A抑制剂)与单次90 mg剂量的ALUNBRIG的共同给药增加brigatinib Cmax 21%和AUC0-INF 101%,相对于90 mg剂量ALUNBRIG单独给药[见剂量和给药方法(2.3)和药物相互作用(7.1)]。
强CYP2C8抑制剂:600 mg每天2次剂量的吉非罗齐[gemfibrozil](一种强CYP2C8抑制剂)与一个单次90 mg剂量的ALUNBRIG的共同给药减低brigatinib Cmax 41%和AUC0-INF 12%,相对于一个90 mg剂量的ALUNBRIG单独给药。吉非罗齐对brigatinib药代动力学的影响是没有临床意义和不知道brigatinib暴露减低潜在机制。
强CYP3A诱导剂:利福平[rifampin] 600 mg每天剂量 (一种强CYP3A 诱导剂)与一个单次180 mg剂量的ALUNBRIG的共同给药,相对于一个 180 mg剂量ALUNBRIG单独给药减低brigatinib Cmax 60%和AUC0-INF 80% [见药物相互作用(7.2)]。
P-gp和BCRP抑制剂:在体外研究提示brigatinib是流出转运蛋白P-糖蛋白(P-gp)和乳癌耐药蛋白(BCRP)的底物。鉴于在体外brigatinib表现出高高溶解度和高通透性,P-gp和BCRP抑制剂是可能不像是增加brigatinib的血浆浓度。
其他转运蛋白:Brigatinib不是有机阴离子转运多肽(OATP1B1,OATP1B3),有机阴离子转运蛋白(OAT1,OAT3),有机阳离子转运蛋白(OCT1,OCT2),多药和毒素挤压蛋白(MATE1,MATE2K),或胆盐输出泵(BSEP)的底物。
Brigatinib对其他药物的影响
转运蛋白底物:在体外Brigatinib是一个P-gp,BCRP,OCT1,MATE1,和MATE2K的抑制剂. 所以,brigatinib可能有潜能增加这些转运蛋白共同给药底物的浓度。Brigatinib在临床上相关浓度不抑制OATP1B1,OATP1B3,OAT1,OAT3,OCT2或BSEP。
CYP底物:Brigatinib及其主要代谢物,AP26123,在临床上相关浓度不抑制CYP1A2,2B6,2C8,2C9,2C19,2D6,或3A4/5。
Brigatinib,在临床上相关血浆浓度,通过孕烷X受体(PXR)的活化诱导CYP3A。Brigatinib在临床上相关浓度还通过相同机制可能诱导CYP2C酶。
13 非临床毒理学
13.1 癌发生,突变发生,生育力受损
未曽用brigatinib进行致癌性研究。
在一项大鼠在体内哺乳动物红细胞微核用brigatinib治疗导致染色体损伤,但在Ames或体外哺乳动物染色体畸变测试不致突性。
没有用brigatinib 进行专门动物生育力研究。观察到睾丸毒性在重复给药动物研究在剂量导致暴露低为0.2倍暴露在患者在180 mg剂量。在大鼠中,发现包括睾丸,精囊和前列腺重量较低,和睾丸小管退行性变性;在3个月恢复阶段期间这些效应没有可逆。在猴中,发现包括睾丸大小减低与精子发生低下的显微镜证据在一起;在恢复阶段期间这些效应是可逆的。
14 临床研究
在一项两-臂,开放,多中心试验(ALTA,NCT02094573)在有局部地晚期或转移ALK-阳性非小细胞肺癌(NSCLC)用克里唑蒂尼已进展成年患者证实ALUNBRIG的疗效。研究要求患者有被记录的ALK重排根据一个FDA批准的测试或一个不同测试有适当档案[archival]组织确证ALK排列通过Vysis® ALK 分离[Break-Apart]荧光原位杂交(FISH)探针药盒测试.关键合格标准包括一个ECOG性能状态为0-2和用克里唑蒂尼进展。神经学稳定患者有中枢神经系统(CNS)转移被允许被纳入。患者有 a history of 间质性肺病或药物-相关肺炎或患者brigatinib的首次剂量3天内曽接受克里唑蒂尼被排除。主要疗效结局测量为确证的总体反应率(ORR)按照在实体肿瘤中反应评价标准(RECIST v1.1)如由体格独立上皮委员会(IRC)评价。附加的疗效结局测量包括研究者评估的ORR,反应时间(DOR),颅内ORR,和颅内DOR。
总共222患者被随机化至接受ALUNBRIG或90 mg每天1次(90 mg臂;n=112)或180 mg每天1次一个7-天后导入在90 mg每天1次(90→180 mg臂;n=110)。随机化被按脑转移分层(存在相比缺乏)和对克里唑蒂尼以前最佳反应(完全或部分缓解相比任何其他反应/不能评价)。
总体研究人群的基线人口统计特征为:中位年龄54岁(范围18至82,23% 65和以上),67% 白种人和31%亚裔,57%女性,36% ECOG PS 0和57% ECOG PS 1,和95%用未或以前吸烟者。总体人群疾病特征为:阶段IV疾病在98%,腺癌史在97%,以前全身化疗在74%,对脑转移疾病在69%(61%曽接受对脑以前辐射),骨转移在39%,和肝转移在26%患者。64%患者对以前克里唑蒂尼有客观反应。
随访中位时间为8个月(范围:0.1-20.2)。在表5中总结了来自ALTA疗效结果。
IRC 的评估颅内 ORR和颅内 DOR按照RECIST v1.1的亚组中44患者有可测量的脑转移(≥10 mm最长直径)在基线被总结在表6。从首次颅内反应的时间日期颅内反应直至颅内疾病进展(新病变,颅内靶点病变直径从最低值增长≥20%,或颅内非-靶点病变的无可争辩的进展)或死亡。
在23患者表现一个颅内反应中,78%者在90 mg臂和68%患者在90→180 mg 臂维持一个反应共至少4个月。
16. 如何供应贮存和处置
30 mg片:圆形,白色至灰白色膜包衣片在一侧有 “U3”凹陷和其他侧平坦;可得到:
21片瓶NDC 76189-113-21
180片瓶NDC 76189-113-18
90 mg片: 椭圆形, 白色至灰白色膜包衣片在一侧有“U7”凹陷和其他侧平坦;可得到:、
7片瓶 NDC 76189-119-07
30片瓶 NDC 76189-119-30
贮存在控制室温20°C至25°C (68°F至77°F);外出允许15°C至30°C (59°F至86°F)间(见USP)。
17 患者咨询资料
建议患者阅读FDA-批准的患者说明书(患者资料)。
告知患者以下:
间质性肺病(ILD)/肺炎
告知患者严重肺不良反应例如ILD/肺炎的症状和风险。
建议患者立即地报告任何新或变坏的呼吸症状[见警告和注意事项(5.1)]。
高血压
忠告患者高血压的风险和及时报告高血压的体征和症状[见警告和注意事项(5.2)]。
心动过缓
建议患者报告任何心动过缓任何症状和告知他们的卫生保健提供者有关新和血压药物的使用[见警告和注意事项(5.3)]。
视力障碍
建议患者告知他们的卫生保健提供者任何新或变坏的视力症状[见警告和注意事项(5.4)]。
肌酸磷酸激酶(CPK)升高
告知患者肌酐磷酸激酶(CPK)升高的体征和症状和治疗期间需要监视。
建议患者告知他们的卫生保健提供者任何新或变坏的不能解释的肌痛,压痛,或虚弱的症状[见警告和注意事项(5.5)]。
胰酶升高
告知患者胰腺炎的体征和症状和治疗期间需要监视淀粉酶和脂肪酶升高[见警告和注意事项(5.6)]。
高血糖
告知患者新或变坏的高血糖的风险和需要定期地监视血糖水平。忠告有糖尿病或葡萄糖不耐受性患者用ALUNBRIG治疗期间需要调整抗-高血糖药物[见警告和注意事项(5.7)]。
生殖潜能女性和男性
胚胎胎儿毒性
忠告生殖潜能女性和男性ALUNBRIG可能致胎儿危害[见警告和注意事项(5.8)和在特殊人群中使用(8.1)]。
● 建议生殖潜能女性告知她们的卫生保健提供者已知或怀疑妊娠和用ALUNBRIG治疗期间和末次剂量后共至少4个月使用有效非激素避孕药[见在特殊人群中使用(8.3]。
● 建议男性有生殖潜能女性伴侣用ALUNBRIG治疗期间和末次剂量后共至少 3个月使用有效避孕[见在特殊人群中使用(8.3)].
哺乳
建议女性用ALUNBRIG治疗期间和末次剂量后共至少1周不要哺乳喂养[见在特殊人群中使用(8.2)]。
不孕不育
忠告生殖潜能男性对来自ALUNBRIG减低生育力潜能[见在特殊人群中使用(8.3)和非临床毒理学(13.1)]。
药物相互作用
建议患者告知他们的卫生保健提供者所有同时药物,包括处方药,非处方药,维生素,和草药。告知服用ALUNBRIG时避免葡萄柚或葡萄柚汁[见药物相互作用(7)]。
给药和给药方法
指导患者开始用90 mg的ALUNBRIG每天1次对头7天和if 如耐受,增加剂量至180 mg每天1次。建议患者有或无食物服用ALUNBRIG[见剂量和给药方法(2.1)]。
缺失剂量
建议患者如一剂ALUNBRIG被缺失或患者服用一剂ALUNBRIG后呕吐,不要服用额外剂量,但在常规时间服用下一剂量。[见剂量和给药方法(2.1)]
Generic Name: brigatinib
Dosage Form: tablet, film coated
Indications and Usage for Alunbrig
Alunbrig is indicated for the treatment of patients with anaplastic lymphoma kinase (ALK)-positive metastatic non-small cell lung cancer (NSCLC) who have progressed on or are intolerant to crizotinib.
This indication is approved under accelerated approval based on tumor response rate and duration of response [see Clinical Studies (14)]. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial.
Alunbrig Dosage and AdministrationRecommended Dosing
The recommended dosing regimen for Alunbrig is:
· 90 mg orally once daily for the first 7 days;
· if 90 mg is tolerated during the first 7 days, increase the dose to 180 mg orally once daily.
Administer Alunbrig until disease progression or unacceptable toxicity.
If Alunbrig is interrupted for 14 days or longer for reasons other than adverse reactions, resume treatment at 90 mg once daily for 7 days before increasing to the previously tolerated dose.
Alunbrig may be taken with or without food. Instruct patients to swallow tablets whole. Do not crush or chew tablets.
If a dose of Alunbrig is missed or vomiting occurs after taking a dose, do not administer an additional dose and take the next dose of Alunbrig at the scheduled time.
Dose Modifications for Adverse ReactionsAlunbrig dose modification levels are summarized in Table 1.
Table 1: Recommended Alunbrig Dose Reduction Levels |
|||
Dose |
Dose Reduction Levels |
||
First |
Second |
Third |
|
* Not applicable |
|||
90 mg once daily |
60 mg once daily |
permanently discontinue |
N/A* |
180 mg once daily |
120 mg once daily |
90 mg once daily |
60 mg once daily |
Once reduced for adverse reactions, do not subsequently increase the dose of Alunbrig. Permanently discontinue Alunbrig if patients are unable to tolerate the 60 mg once daily dose.
Recommendations for dose modifications of Alunbrig for the management of adverse reactions are provided in Table 2.
Table 2: Recommended Alunbrig Dose Modifications for Adverse Reactions |
||
Adverse Reaction |
Severity* |
Dose Modification |
bpm = beats per minute; DBP = diastolic blood pressure; HR = heart rate; SBP = systolic blood pressure; ULN = upper limit of normal |
||
* Graded per National Cancer Institute Common Terminology Criteria for Adverse Events. Version 4.0 (NCI CTCAE v4). |
||
Interstitial Lung Disease (ILD) /Pneumonitis |
Grade 1 |
· If new pulmonary symptoms occur during the first 7 days of treatment, withhold Alunbrig until recovery to baseline, then resume at same dose and do not escalate to 180 mg if ILD/pneumonitis is suspected. · If new pulmonary symptoms occur after the first 7 days of treatment, withhold Alunbrig until recovery to baseline, then resume at same dose. · If ILD/pneumonitis recurs, permanently discontinue Alunbrig. |
Grade 2 |
· If new pulmonary symptoms occur during the first 7 days of treatment, withhold Alunbrig until recovery to baseline. Resume at next lower dose (Table 1) and do not dose escalate if ILD/pneumonitis is suspected. · If new pulmonary symptoms occur after the first 7 days of treatment, withhold Alunbrig until recovery to baseline. If ILD/pneumonitis is suspected, resume at next lower dose (Table 1); otherwise, resume at same dose. · If ILD/pneumonitis recurs, permanently discontinue Alunbrig. |
|
Grade 3 or 4 |
Permanently discontinue Alunbrig for ILD/pneumonitis. |
|
Hypertension |
Grade 3 hypertension (SBP greater than or equal to 160 mmHg or DBP greater than or equal to 100 mmHg, medical intervention indicated, more than one anti-hypertensive drug, or more intensive therapy than previously used indicated) |
· Withhold Alunbrig until hypertension has recovered to Grade 1 or less (SBP less than 140 mmHg and DBP less than 90 mmHg), then resume Alunbrig at next lower dose (Table 1). · Recurrence: withhold Alunbrig until recovery to Grade 1 or less, and resume at next lower dose (Table 1) or permanently discontinue treatment. |
Grade 4 hypertension (life-threatening consequences, urgent intervention indicated) |
· Withhold Alunbrig until recovery to Grade 1 or less, and resume at next lower dose (Table 1) orpermanently discontinue treatment. · Recurrence: permanently discontinue Alunbrig for recurrence of Grade 4 hypertension. |
|
Bradycardia (HR less than 60 bpm) |
Symptomatic bradycardia |
· Withhold Alunbrig until recovery to asymptomatic bradycardia or to a resting heart rate of 60 bpm or above. · If a concomitant medication known to cause bradycardia is identified and discontinued or dose-adjusted, resume Alunbrig at same dose upon recovery to asymptomatic bradycardia or to resting heart rate of 60 bpm or above. · If no concomitant medication known to cause bradycardia is identified, or if contributing concomitant medications are not discontinued or dose-adjusted, resume Alunbrig at next lower dose (Table 1) upon recovery to asymptomatic bradycardia or to resting heart rate of 60 bpm or above. |
Bradycardia with life-threatening consequences, urgent intervention indicated |
· Permanently discontinue Alunbrig if no contributing concomitant medication is identified. · If contributing concomitant medication is identified and discontinued or dose-adjusted, resume Alunbrig at next lower dose (Table 1) upon recovery to asymptomatic bradycardia or to a resting heart rate of 60 bpm or above, with frequent monitoring as clinically indicated. · Recurrence: permanently discontinue Alunbrig. |
|
Visual Disturbance |
Grade 2 or 3 visual disturbance |
Withhold Alunbrig until recovery to Grade 1 or baseline, then resume at the next lower dose (Table 1). |
Grade 4 visual disturbance |
Permanently discontinue Alunbrig. |
|
Creatine Phosphokinase (CPK) Elevation |
Grade 3 CPK elevation (greater than 5.0 × ULN) |
Withhold Alunbrig until recovery to Grade 1 or less (less than or equal to 2.5 × ULN) or to baseline, then resume Alunbrig at same dose. |
Grade 4 CPK elevation (greater than 10.0 × ULN) or recurrence of Grade 3 elevation |
Withhold Alunbrig until recovery to Grade 1 or less (less than or equal to 2.5 × ULN) or to baseline, then resume Alunbrig at next lower dose (Table 1). |
|
Lipase/Amylase Elevation |
Grade 3 lipase or amylase elevation (greater than 2.0 × ULN) |
Withhold Alunbrig until recovery to Grade 1 or less (less than or equal to 1.5 × ULN) or to baseline, then resume Alunbrig at same dose. |
Grade 4 lipase or amylase elevation (greater than 5.0 × ULN) or recurrence of Grade 3 elevation |
Withhold Alunbrig until recovery to Grade 1 or less (less than or equal to 1.5 × ULN) or to baseline, then resume Alunbrig at next lower dose (Table 1). |
|
Hyperglycemia [see Warnings and Precautions (5.7)] |
Grade 3 (greater than 250 mg/dL or 13.9 mmol/L) or greater |
If adequate hyperglycemic control cannot be achieved with optimal medical management, withhold Alunbrig until adequate hyperglycemic control is achieved and consider reduction to the next dose (Table 1) orpermanently discontinue Alunbrig. |
Other |
Grade 3 |
· Withhold Alunbrig until recovery to baseline, then resume at same dose. · Recurrence: withhold Alunbrig until recovery to baseline, then resume at next lower dose or discontinue Alunbrig (Table 1). |
Grade 4 |
· First occurrence: either withhold Alunbrig until recovery to baseline and resume at next lower dose (Table 1) or permanently discontinue. · Permanently discontinue Alunbrig for recurrence. |
Avoid concomitant use of strong CYP3A inhibitors during treatment with Alunbrig [see Drug Interactions (7.1) and Clinical Pharmacology (12.3)]. If concomitant use of a strong CYP3A inhibitor cannot be avoided, reduce the Alunbrig once daily dose by approximately 50% (i.e., from 180 mg to 90 mg, or from 90 mg to 60 mg). After discontinuation of a strong CYP3A inhibitor, resume the Alunbrig dose that was tolerated prior to initiating the strong CYP3A inhibitor.
Dosage Forms and Strengths· 180 mg, oval, white to off-white film-coated tablet with "U13" debossed on one side and plain on the other side
· 90 mg, oval, white to off-white film-coated tablet with "U7" debossed on one side and plain on the other side
· 30 mg, round, white to off-white film-coated tablet with "U3" debossed on one side and plain on the other side
ContraindicationsNone.
Warnings and PrecautionsInterstitial Lung Disease (ILD)/PneumonitisSevere, life-threatening, and fatal pulmonary adverse reactions consistent with interstitial lung disease (ILD)/pneumonitis have occurred with Alunbrig.
In Trial ALTA (ALTA), ILD/pneumonitis occurred in 3.7% of patients in the 90 mg group (90 mg once daily) and 9.1% of patients in the 90→180 mg group (180 mg once daily with 7-day lead-in at 90 mg once daily).
Adverse reactions consistent with possible ILD/pneumonitis occurred early (within 9 days of initiation of Alunbrig; median onset was 2 days) in 6.4% of patients, with Grade 3 to 4 reactions occurring in 2.7%.
Monitor for new or worsening respiratory symptoms (e.g., dyspnea, cough, etc.), particularly during the first week of initiating Alunbrig. Withhold Alunbrig in any patient with new or worsening respiratory symptoms, and promptly evaluate for ILD/pneumonitis or other causes of respiratory symptoms (e.g., pulmonary embolism, tumor progression, and infectious pneumonia). For Grade 1 or 2 ILD/pneumonitis, either resume Alunbrig with dose reduction according to Table 1 after recovery to baseline or permanently discontinue Alunbrig. Permanently discontinue Alunbrig for Grade 3 or 4 ILD/pneumonitis or recurrence of Grade 1 or 2 ILD/pneumonitis [see Dosage and Administration (2.2)and Adverse Reactions (6.1)].
HypertensionIn ALTA, hypertension was reported in 11% of patients in the 90 mg group who received Alunbrig and 21% of patients in the 90→180 mg group. Grade 3 hypertension occurred in 5.9% of patients overall.
Control blood pressure prior to treatment with Alunbrig. Monitor blood pressure after 2 weeks and at least monthly thereafter during treatment with Alunbrig. Withhold Alunbrig for Grade 3 hypertension despite optimal antihypertensive therapy. Upon resolution or improvement to Grade 1 severity, resume Alunbrig at a reduced dose. Consider permanent discontinuation of treatment with Alunbrig for Grade 4 hypertension or recurrence of Grade 3 hypertension [see Dosage and Administration (2.2)and Adverse Reactions (6.1)].
Use caution when administering Alunbrig in combination with antihypertensive agents that cause bradycardia [see Warnings and Precautions (5.3)].
BradycardiaBradycardia can occur with Alunbrig. In ALTA, heart rates less than 50 beats per minute (bpm) occurred in 5.7% of patients in the 90 mg group and 7.6% of patients in the 90→180 mg group. Grade 2 bradycardia occurred in 1 (0.9%) patient in the 90 mg group.
Monitor heart rate and blood pressure during treatment with Alunbrig. Monitor patients more frequently if concomitant use of drug known to cause bradycardia cannot be avoided [see Warnings and Precautions (5.2)].
For symptomatic bradycardia, withhold Alunbrig and review concomitant medications for those known to cause bradycardia. If a concomitant medication known to cause bradycardia is identified and discontinued or dose adjusted, resume Alunbrig at the same dose following resolution of symptomatic bradycardia; otherwise, reduce the dose of Alunbrig following resolution of symptomatic bradycardia. Discontinue Alunbrig for life-threatening bradycardia if no contributing concomitant medication is identified [see Dosage and Administration (2.2)].
Visual DisturbanceIn ALTA, adverse reactions leading to visual disturbance including blurred vision, diplopia, and reduced visual acuity, were reported in 7.3% of patients receiving Alunbrig in the 90 mg group and 10% of patients in the 90→180 mg group. Grade 3 macular edema and cataract occurred in one patient each in the 90→180 mg group.
Advise patients to report any visual symptoms. Withhold Alunbrig and obtain an ophthalmologic evaluation in patients with new or worsening visual symptoms of Grade 2 or greater severity. Upon recovery of Grade 2 or Grade 3 visual disturbances to Grade 1 severity or baseline, resume Alunbrig at a reduced dose. Permanently discontinue treatment with Alunbrig for Grade 4 visual disturbances [see Dosage and Administration (2.2) and Adverse Reactions (6.1)].
Creatine Phosphokinase (CPK) ElevationIn ALTA, creatine phosphokinase (CPK) elevation occurred in 27% of patients receiving Alunbrig in the 90 mg group and 48% of patients in the 90 mg→180 mg group. The incidence of Grade 3-4 CPK elevation was 2.8% in the 90 mg group and 12% in the 90→180 mg group.
Dose reduction for CPK elevation occurred in 1.8% of patients in the 90 mg group and 4.5% in the 90→180 mg group.
Advise patients to report any unexplained muscle pain, tenderness, or weakness. Monitor CPK levels during Alunbrig treatment. Withhold Alunbrig for Grade 3 or 4 CPK elevation. Upon resolution or recovery to Grade 1 or baseline, resume Alunbrig at the same dose or at a reduced dose as described in Table 2 [see Dosage and Administration (2.2) and Adverse Reactions (6.1)].
Pancreatic Enzyme ElevationIn ALTA, amylase elevation occurred in 27% of patients in the 90 mg group and 39% of patients in the 90→180 mg group. Lipase elevations occurred in 21% of patients in the 90 mg group and 45% of patients in the 90→180 mg group. Grade 3 or 4 amylase elevation occurred in 3.7% of patients in the 90 mg group and 2.7% of patients in the 90→180 mg group. Grade 3 or 4 lipase elevation occurred in 4.6% of patients in the 90 mg group and 5.5% of patients in the 90→180 mg group.
Monitor lipase and amylase during treatment with Alunbrig. Withhold Alunbrig for Grade 3 or 4 pancreatic enzyme elevation. Upon resolution or recovery to Grade 1 or baseline, resume Alunbrig at the same dose or at a reduced dose as described in Table 2 [see Dosage and Administration (2.2) and Adverse Reactions (6.1)].
HyperglycemiaIn ALTA, 43% of patients who received Alunbrig experienced new or worsening hyperglycemia. Grade 3 hyperglycemia, based on laboratory assessment of serum fasting glucose levels, occurred in 3.7% of patients. Two of 20 (10%) patients with diabetes or glucose intolerance at baseline required initiation of insulin while receiving Alunbrig.
Assess fasting serum glucose prior to initiation of Alunbrig and monitor periodically thereafter. Initiate or optimize anti-hyperglycemic medications as needed. If adequate hyperglycemic control cannot be achieved with optimal medical management, withhold Alunbrig until adequate hyperglycemic control is achieved and consider reducing the dose of Alunbrig as described in Table 1 or permanently discontinuing Alunbrig [see Dosage and Administration (2.2) and Adverse Reactions (6.1)].
Embryo-Fetal ToxicityBased on its mechanism of action and findings in animals, Alunbrig can cause fetal harm when administered to pregnant women. There are no clinical data on the use of Alunbrig in pregnant women. Administration of brigatinib to pregnant rats during the period of organogenesis resulted in dose-related skeletal anomalies at doses as low as 12.5 mg/kg/day (approximately 0.7 times the human exposure by AUC at 180 mg once daily) as well as increased post implantation loss, malformations, and decreased fetal body weight at doses of 25 mg/kg/day (approximately 1.26 times the human exposure at 180 mg once daily) or higher.
Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective non-hormonal contraception during treatment with Alunbrig and for at least 4 months following the final dose. Advise males with female partners of reproductive potential to use effective contraception during treatment and for at least 3 months after the last dose of Alunbrig [see Use in Specific Populations (8.1 and 8.3) and Clinical Pharmacology (12.1)].
Adverse ReactionsThe following adverse reactions are discussed in greater detail in other sections of the prescribing information:
· Interstitial Lung Disease (ILD)/Pneumonitis [see Warnings and Precautions (5.1)]
· Hypertension [see Warnings and Precautions (5.2)]
· Bradycardia [see Warnings and Precautions (5.3)]
· Visual Disturbance [see Warnings and Precautions (5.4)]
· Creatine Phosphokinase (CPK) Elevation [see Warnings and Precautions (5.5)]
· Pancreatic Enzyme Elevation [see Warnings and Precautions (5.6)]
· Hyperglycemia[see Warnings and Precautions (5.7)]
Clinical Trial ExperienceBecause clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
The safety of Alunbrig was evaluated in 219 patients with locally advanced or metastatic ALK-positive non-small cell lung cancer (NSCLC) who received at least one dose of Alunbrig in ALTA after experiencing disease progression on crizotinib. Patients received Alunbrig 90 mg once daily continuously (90 mg group) or 90 mg once daily for 7 days followed by 180 mg once daily (90→180 mg group). The median duration of treatment was 7.5 months in the 90 mg group and 7.8 months in the 90→180 mg group. A total of 150 (68%) patients were exposed to Alunbrig for greater than or equal to 6 months and 42 (19%) patients were exposed for greater than or equal to one year.
The study population characteristics were: median age 54 years (range: 18 to 82), age less than 65 years (77%), female (57%), White (67%), Asian (31%), Stage IV disease (98%), NSCLC adenocarcinoma histology (97%), never or former smoker (95%), ECOG Performance Status (PS) 0 or 1 (93%), and brain metastases at baseline (69%) [see Clinical Studies (14)].
Serious adverse reactions occurred in 38% of patients in the 90 mg group and 40% of patients in the 90→180 mg group. The most common serious adverse reactions were pneumonia (5.5% overall, 3.7% in the 90 mg group, and 7.3% in the 90→180 mg group) and ILD/pneumonitis (4.6% overall, 1.8% in the 90 mg group and 7.3% in the 90→180 mg group). Fatal adverse reactions occurred in 3.7% of patients and consisted of pneumonia (2 patients), sudden death, dyspnea, respiratory failure, pulmonary embolism, bacterial meningitis and urosepsis (1 patient each).
In ALTA, 2.8% of patients in the 90 mg group and 8.2% of patients in the 90→180 mg group permanently discontinued Alunbrig for adverse reactions. The most frequent adverse reactions that led to discontinuation were ILD/pneumonitis (0.9% in the 90 mg group and 1.8% in the 90→180 mg group) and pneumonia (1.8% in the 90→180 mg group only).
In ALTA, 14% of patients required a dose reduction due to adverse reactions (7.3% in the 90 mg group and 20% in the 90→180 mg group). The most common adverse reaction that led to dose reduction was increased creatine phosphokinase for both regimens (1.8% in the 90 mg group and 4.5% in the 90→180 mg group).
Table 3 and Table 4 summarize the common adverse reactions and laboratory abnormalities observed in ALTA.
Table 3: Adverse Reactions in ≥ 10% (All Grades*) or ≥ 2% (Grades 3-4) of Patients by Dose Group in ALTA (N=219) |
|||||||
Adverse Reactions |
90 mg once daily |
90→180 mg once daily |
|||||
All Grades |
Grades 3-4 |
All Grades |
Grades 3-4 |
||||
* Per National Cancer Institute Common Terminology Criteria for Adverse Events (CTCAE) version 4.0 † Includes abdominal distension, abdominal pain, and epigastric discomfort ‡ Includes asthenia and fatigue § Includes dyspnea and exertional dyspnea ¶ Includes one Grade 5 event # Includes headache and sinus headache Þ Includes peripheral sensory neuropathy and paresthesia ß Includes acneiform dermatitis, exfoliative rash, rash, pruritic rash, and pustular rash à Includes musculoskeletal pain and myalgia è Includes diplopia, photophobia, blurred vision, reduced visual acuity, visual impairment, vitreous floaters, visual field defect, macular edema, and vitreous detachment |
|||||||
Gastrointestinal Disorders |
|
|
|
|
|||
Nausea |
33 |
0.9 |
40 |
0.9 |
|||
Diarrhea |
19 |
0 |
38 |
0 |
|||
Vomiting |
24 |
1.8 |
23 |
0 |
|||
Constipation |
19 |
0.9 |
15 |
0 |
|||
Abdominal Pain† |
17 |
0 |
10 |
0 |
|||
General Disorders And Administration Site Conditions |
|
|
|
|
|||
Fatigue‡ |
29 |
1.8 |
36 |
0 |
|||
Pyrexia |
14 |
0 |
6.4 |
0.9 |
|||
Respiratory, Thoracic And Mediastinal Disorders |
|
|
|
|
|||
Cough |
18 |
0 |
34 |
0 |
|||
Dyspnea§ |
27 |
2.8 |
21 |
1.8¶ |
|||
ILD/Pneumonitis |
3.7 |
1.8 |
9.1 |
2.7 |
|||
Hypoxia |
0.9 |
0 |
2.7 |
2.7 |
|||
Nervous System Disorders |
|
|
|
|
|||
Headache# |
28 |
0 |
27 |
0.9 |
|||
Peripheral NeuropathyÞ |
13 |
0.9 |
13 |
1.8 |
|||
Skin And Subcutaneous Tissue Disorders |
|
|
|
|
|||
Rashß |
15 |
1.8 |
24 |
3.6 |
|||
Vascular Disorders |
|
|
|
|
|||
Hypertension |
11 |
5.5 |
21 |
6.4 |
|||
Musculoskeletal And Connective Tissue Disorders |
|
|
|
|
|||
Muscle Spasms |
12 |
0 |
17 |
0 |
|||
Back pain |
10 |
1.8 |
15 |
1.8 |
|||
Myalgiaà |
9.2 |
0 |
15 |
0.9 |
|||
Arthralgia |
14 |
0.9 |
14 |
0 |
|||
Pain in extremity |
11 |
0 |
3.6 |
0.9 |
|||
Metabolism And Nutrition Disorders |
|
|
|
|
|||
Decreased Appetite |
22 |
0.9 |
15 |
0.9 |
|||
Eye Disorders |
|
|
|
|
|||
Visual Disturbanceè |
7.3 |
0 |
10 |
0.9 |
|||
Infections |
|
|
|
|
|||
Pneumonia |
4.6 |
2.8¶ |
10 |
5.5¶ |
|||
Psychiatric Disorders |
|
|
|
|
|||
Insomnia |
11 |
0 |
7.3 |
0 |
|||
Table 4: Laboratory Abnormalities in ≥20% (All Grades*) of Patients by Regimen in ALTA (N=219) |
|||||||
Laboratory Abnormality |
90 mg once daily |
90→180 mg once daily |
|||||
All Grades |
Grades 3-4 |
All Grades |
Grades 3-4 |
||||
* Per CTCAE version 4.0 † Elevated blood insulin was also observed in both regimens |
|||||||
Chemistry |
|
|
|
|
|||
Increased aspartate aminotransferase |
38 |
0.9 |
65 |
0 |
|||
Hyperglycemia† |
38 |
3.7 |
49 |
3.6 |
|||
Increased creatine phosphokinase |
27 |
2.8 |
48 |
12 |
|||
Increased lipase |
21 |
4.6 |
45 |
5.5 |
|||
Increased alanine aminotransferase |
34 |
0 |
40 |
2.7 |
|||
Increased amylase |
27 |
3.7 |
39 |
2.7 |
|||
Increased alkaline phosphatase |
15 |
0.9 |
29 |
0.9 |
|||
Decreased phosphorous |
15 |
1.8 |
23 |
3.6 |
|||
Prolonged activated partial thromboplastin time |
22 |
1.8 |
20 |
0.9 |
|||
Hematology |
|
|
|
|
|||
Anemia |
23 |
0.9 |
40 |
0.9 |
|||
Lymphopenia |
19 |
2.8 |
27 |
4.5 |
Strong CYP3A Inhibitors
Coadministration of itraconazole, a strong CYP3A inhibitor, increased brigatinib plasma concentrations and may result in increased adverse reactions [see Clinical Pharmacology (12.3)]. Avoid the concomitant use of strong CYP3A inhibitors with Alunbrig, including but not limited to certain antivirals (e.g., boceprevir, cobicistat, indinavir, lopinavir, nelfinavir, ritonavir, saquinavir), macrolide antibiotics (e.g., clarithromycin), antifungals (e.g., itraconazole, ketoconazole, posaconazole, voriconazole), and conivaptan. Avoid grapefruit or grapefruit juice as it may also increase plasma concentrations of brigatinib [see Clinical Pharmacology (12.3)]. If concomitant use of a strong CYP3A inhibitor cannot be avoided, reduce the dose of Alunbrig by approximately 50% [see Dosage and Administration (2.3)].
Drugs That May Decrease Brigatinib Plasma ConcentrationsStrong CYP3A Inducers
Coadministration of Alunbrig with rifampin, a strong CYP3A inducer, decreased brigatinib plasma concentrations and may result in decreased efficacy [see Clinical Pharmacology (12.3)]. Avoid the concomitant use of strong CYP3A inducers with Alunbrig, including but not limited to rifampin, carbamazepine, phenytoin, and St. John's Wort [see Clinical Pharmacology (12.3)].
Drugs That May Have Their Plasma Concentrations Altered by BrigatinibCYP3A Substrates
Brigatinib induces CYP3A in vitro and may decrease concentrations of CYP3A substrates. Coadministration of Alunbrig with CYP3A substrates, including hormonal contraceptives, can result in decreased concentrations and loss of efficacy of CYP3A substrates [see Use in Specific Populations (8.3)].
USE IN SPECIFIC POPULATIONSPregnancyRisk Summary
Based on its mechanism of action and findings in animals, Alunbrig can cause fetal harm when administered to a pregnant woman [see Data and Clinical Pharmacology (12.1)]. There are no clinical data on the use of Alunbrig in pregnant women. Administration of brigatinib to pregnant rats during the period of organogenesis resulted in dose-related skeletal anomalies at doses as low as 12.5 mg/kg/day (approximately 0.7 times the human exposure by AUC at 180 mg once daily) as well as increased post-implantation loss, malformations, and decreased fetal body weight at doses of 25 mg/kg/day (approximately 1.26 times the human exposure at 180 mg once daily) or greater. If this drug is used during pregnancy, or if the patient becomes pregnant while taking this drug, advise the patient of the potential risk to a fetus.
In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively.
Data
Animal Data
In an embryo-fetal development study in which pregnant rats were administered daily doses of brigatinib during organogenesis, dose-related skeletal (incomplete ossification, small incisors) and visceral anomalies were observed at doses as low as 12.5 mg/kg/day (approximately 0.7 times the human exposure by AUC at 180 mg once daily). Malformations observed at 25 mg/kg/day (approximately 1.26 times the human AUC at 180 mg once daily) included anasarca (generalized subcutaneous edema), anophthalmia (absent eyes), forelimb hyperflexion, small, short and/or bent limbs, multiple fused ribs, bent scapulae, omphalocele (intestine protruding into umbilicus), and gastroschisis (intestines protruding through a defect in the abdominal wall) along with visceral findings of moderate bilateral dilatation of the lateral ventricles.
LactationRisk Summary
There are no data regarding the secretion of brigatinib in human milk or its effects on the breastfed infant or milk production. Because of the potential for adverse reactions in breastfed infants, advise lactating women not to breastfeed during treatment with Alunbrig and for 1 week following the final dose.
Females and Males of Reproductive PotentialContraception
Alunbrig can cause fetal harm [see Use in Specific Populations (8.1)].
Females
Advise females of reproductive potential to use effective non-hormonal contraception during treatment with Alunbrig and for at least 4 months after the final dose. Counsel patients to use a non-hormonal method of contraception since Alunbrig can render some hormonal contraceptives ineffective [see Drug Interaction (7.3]).
Males
Because of the potential for genotoxicity, advise males with female partners of reproductive potential to use effective contraception during treatment with Alunbrig and for at least 3 months after the final dose [see Nonclinical Toxicology (13.1)].
Infertility
Based on findings in male reproductive organs in animals, Alunbrig may cause reduced fertility in males [see Nonclinical Toxicology (13.1)].
Pediatric UseThe safety and efficacy of Alunbrig in pediatric patients have not been established.
Geriatric UseClinical studies of Alunbrig did not include sufficient numbers of patients aged 65 years and older to determine whether they respond differently from younger patients. Of the 222 patients in ALTA, 19.4% were 65-74 years and 4.1% were 75 years or older. No clinically relevant differences in safety or efficacy were observed between patients ≥65 years and younger patients.
Hepatic ImpairmentNo dose adjustment is recommended for patients with mild hepatic impairment (total bilirubin within upper limit of normal [ULN] and AST greater than ULN or total bilirubin greater than 1 and up to 1.5 times ULN and any AST). The pharmacokinetics and safety of Alunbrig in patients with moderate or severe hepatic impairment have not been studied [see Clinical Pharmacology (12.3)].
Renal ImpairmentNo dose adjustment is recommended for patients with mild and moderate renal impairment [creatinine clearance (CLcr) 30 to 89 mL/min estimated by Cockcroft-Gault)]. The pharmacokinetics and safety of Alunbrig in patients with severe renal impairment (CLcr 15 to 29 mL/min estimated by Cockcroft-Gault) have not been studied [see Clinical Pharmacology (12.3)].
Alunbrig DescriptionBrigatinib is a kinase inhibitor. The chemical name for brigatinib is 5-chloro-N4-[2-(dimethylphosphoryl)phenyl]-N2-{2-methoxy-4-[4-(4-methylpiperazin-1-yl)piperidin-1-yl]phenyl}pyrimidine-2,4-diamine. The molecular formula is C29H39ClN7O2P which corresponds to a formula weight of 584.10 g/mol. Brigatinib has no chiral centers. The chemical structure is shown below:
Brigatinib is an off-white to beige/tan solid. The pKas were determined to be: 1.73 ± 0.02 (base), 3.65 ± 0.01 (base), 4.72 ± 0.01 (base), and 8.04 ± 0.01 (base).
Alunbrig is supplied for oral use as film-coated tablets containing 180 mg, 90 mg or 30 mg of brigatinib and the following inactive ingredients: lactose monohydrate, microcrystalline cellulose, sodium starch glycolate (Type A), magnesium stearate, and hydrophobic colloidal silica. The tablet coating consists of talc, polyethylene glycol, polyvinyl alcohol, and titanium dioxide.
Alunbrig - Clinical PharmacologyMechanism of ActionBrigatinib is a tyrosine kinase inhibitor with in vitro activity at clinically achievable concentrations against multiple kinases including ALK, ROS1, insulin-like growth factor-1 receptor (IGF-1R), and FLT-3 as well as EGFR deletion and point mutations. Brigatinib inhibited autophosphorylation of ALK and ALK-mediated phosphorylation of the downstream signaling proteins STAT3, AKT, ERK1/2, and S6 in in vitro and in vivo assays. Brigatinib also inhibited the in vitro proliferation of cell lines expressing EML4-ALK and NPM-ALK fusion proteins and demonstrated dose-dependent inhibition of EML4-ALK-positive NSCLC xenograft growth in mice.
At clinically achievable concentrations (≤ 500 nM), brigatinib inhibited the in vitro viability of cells expressing EML4-ALK and 17 mutant forms associated with resistance to ALK inhibitors including crizotinib, as well as EGFR-Del (E746-A750), ROS1-L2026M, FLT3-F691L, and FLT3-D835Y. Brigatinib exhibited in vivo anti-tumor activity against 4 mutant forms of EML4-ALK, including G1202R and L1196M mutants identified in NSCLC tumors in patients who have progressed on crizotinib. Brigatinib also reduced tumor burden and prolonged survival in mice implanted intracranially with an ALK-driven tumor cell line.
PharmacodynamicsBrigatinib exposure-response relationships and the time course of the pharmacodynamic response are unknown.
Cardiac Electrophysiology
The QT interval prolongation potential of Alunbrig was assessed in 123 patients following once daily Alunbrig doses of 30 mg (1/6th of the approved 180 mg dose) to 240 mg (1.3 times the approved 180 mg dose). Alunbrig did not prolong the QT interval to a clinically relevant extent.
PharmacokineticsThe geometric mean (CV%) steady-state maximum concentration (Cmax) of brigatinib at Alunbrig doses of 90 mg and 180 mg once daily was 552 (65%) ng/mL and 1452 (60%) ng/mL, respectively, and the corresponding area under the concentration-time curve (AUC0-Tau) was 8165 (57%) ng∙h/mL and 20276 (56%) ng∙h/mL. After a single dose and repeat dosing of Alunbrig, systemic exposure of brigatinib was dose proportional over the dose range of 60 mg (0.3 times the approved 180 mg dose) to 240 mg (1.3 times the approved 180 mg dose) once daily. The mean accumulation ratio after repeat dosing was 1.9 to 2.4.
Absorption
Following administration of single oral doses of Alunbrig of 30 to 240 mg, the median time to peak concentration (Tmax) ranged from 1 to 4 hours.
Effect of Food
Brigatinib Cmax was reduced by 13% with no effect on AUC in healthy subjects administered Alunbrig after a high fat meal (approximately 920 calories, 58 grams carbohydrate, 59 grams fat and 40 grams protein) compared to the Cmax and AUC after overnight fasting.
Distribution
Brigatinib is 66% bound to human plasma proteins and the binding is not concentration-dependent in vitro. The blood-to-plasma concentration ratio is 0.69. Following oral administration of Alunbrig 180 mg once daily, the mean apparent volume of distribution (Vz/F) of brigatinib at steady-state was 153 L.
Elimination
Following oral administration of Alunbrig 180 mg once daily, the mean apparent oral clearance (CL/F) of brigatinib at steady-state is 12.7 L/h and the mean plasma elimination half-life is 25 hours.
Metabolism
Brigatinib is primarily metabolized by CYP2C8 and CYP3A4 in vitro. Following oral administration of a single 180 mg dose of radiolabeled brigatinib to healthy subjects, N-demethylation and cysteine conjugation were the two major metabolic pathways. Unchanged brigatinib (92%) and its primary metabolite, AP26123 (3.5%), were the major circulating radioactive components. The steady-state AUC of AP26123 was less than 10% of AUC of brigatinib exposure in patients. The metabolite, AP26123, inhibited ALK with approximately 3-fold lower potency than brigatinib in vitro.
Excretion
Following oral administration of a single 180 mg dose of radiolabeled brigatinib to healthy subjects, 65% of the administered dose was recovered in feces and 25% of the administered dose was recovered in urine. Unchanged brigatinib represented 41% and 86% of the total radioactivity in feces and urine, respectively.
Specific Populations
Age, race, sex, body weight, and albumin concentration have no clinically meaningful effect on the pharmacokinetics of brigatinib.
Hepatic Impairment
As hepatic elimination is a major route of excretion for brigatinib, hepatic impairment may result in increased plasma brigatinib concentrations. Based on a population pharmacokinetic analysis, brigatinib exposures were similar between 49 subjects with mild hepatic impairment (total bilirubin within upper limit of normal [ULN] and AST greater than ULN or total bilirubin greater than 1 and up to 1.5 times ULN and any AST) and 377 subjects with normal hepatic function (total bilirubin and AST within ULN). The pharmacokinetics of brigatinib in patients with moderate (total bilirubin greater than 1.5 and up to 3.0 times ULN and any AST) to severe (total bilirubin greater than 3.0 times ULN and any AST) hepatic impairment has not been studied.
Renal Impairment
Based on a population pharmacokinetic analysis, brigatinib exposures were similar among 125 subjects with mild renal impairment (CLcr 60 to less than 90 mL/min), 34 subjects with moderate renal impairment (CLcr 30 to less than 60 mL/min) and 270 subjects with normal renal function (CLcr greater than or equal to 90 mL/min), suggesting that no dose adjustment is necessary in patients with mild to moderate renal impairment. Patients with severe renal impairment (CLcr less than 30 mL/min) were not included in clinical trials.
Drug Interactions
Effects of Other Drugs on Brigatinib
Strong CYP3A Inhibitors: Coadministration of 200 mg twice daily doses of itraconazole (a strong CYP3A inhibitor) with a single 90 mg dose of Alunbrig increased brigatinib Cmax by 21% and AUC0-INF by 101%, relative to a 90 mg dose of Alunbrig administered alone [see Dosage and Administration (2.3)and Drug Interactions (7.1)].
Strong CYP2C8 Inhibitors: Coadministration of 600 mg twice daily doses of gemfibrozil (a strong CYP2C8 inhibitor) with a single 90 mg dose of Alunbrig decreased brigatinib Cmax by 41% and AUC0-INF by 12%, relative to a 90 mg dose of Alunbrig administered alone. The effect of gemfibrozil on the pharmacokinetics of brigatinib is not clinically meaningful and the underlying mechanism for the decreased exposure of brigatinib is unknown.
Strong CYP3A Inducers: Coadministration of 600 mg daily doses of rifampin (a strong CYP3A inducer) with a single 180 mg dose of Alunbrig decreased brigatinib Cmax by 60% and AUC0-INF by 80%, relative to a 180 mg dose of Alunbrig administered alone [see Drug Interactions (7.2)].
P-gp and BCRP Inhibitors: In vitro studies suggest that brigatinib is a substrate of the efflux transporters P-glycoprotein (P-gp) and breast cancer resistance protein (BCRP). Given that brigatinib exhibits high solubility and high permeability in vitro, P-gp and BCRP inhibitors are unlikely to increase plasma concentrations of brigatinib.
Other Transporters: Brigatinib is not a substrate of organic anion transporting polypeptide (OATP1B1, OATP1B3), organic anion transporter (OAT1, OAT3), organic cation transporter (OCT1, OCT2), multidrug and toxin extrusion protein (MATE1, MATE2K), or bile salt export pump (BSEP).
Effects of Brigatinib on Other Drugs
Transporter Substrates: Brigatinib is an inhibitor of P-gp, BCRP, OCT1, MATE1, and MATE2K in vitro. Therefore, brigatinib may have the potential to increase concentrations of coadministered substrates of these transporters. Brigatinib at clinically relevant concentrations did not inhibit OATP1B1, OATP1B3, OAT1, OAT3, OCT2 or BSEP.
CYP Substrates: Brigatinib and its primary metabolite, AP26123, did not inhibit CYP1A2, 2B6, 2C8, 2C9, 2C19, 2D6, or 3A4/5 at clinically relevant concentrations.
Brigatinib, at clinically relevant plasma concentrations, induced CYP3A via activation of the pregnane X receptor (PXR). Brigatinib may also induce CYP2C enzymes via the same mechanism at clinically relevant concentrations.
Nonclinical ToxicologyCarcinogenesis, Mutagenesis, Impairment of FertilityCarcinogenicity studies have not been performed with brigatinib.
Treatment with brigatinib resulted in chromosomal damage in an in vivo mammalian erythrocyte micronucleus in the rat, but was not mutagenic in the Ames or in vitro mammalian chromosome aberration tests.
Dedicated animal fertility studies were not conducted with brigatinib. Testicular toxicity was observed in repeat-dose animal studies at doses resulting in exposure as low as 0.2 times the exposure in patients at the 180 mg dose. In rats, findings included lower weight of testes, seminal vesicles and prostate gland, and testicular tubular degeneration; these effects were not reversible during the 2-month recovery period. In monkeys, findings included reduced size of testes along with microscopic evidence of hypospermatogenesis; these effects were reversible during the recovery period.
Clinical StudiesThe efficacy of Alunbrig was demonstrated in a two-arm, open-label, multicenter trial (ALTA, NCT02094573) in adult patients with locally advanced or metastatic ALK-positive non-small cell lung cancer (NSCLC) who had progressed on crizotinib. The study required patients to have a documented ALK rearrangement based on an FDA-approved test or a different test with adequate archival tissue to confirm ALK arrangement by the Vysis® ALK Break-Apart fluorescence in situ hybridization (FISH) Probe Kit test. Key eligibility criteria included an ECOG Performance Status of 0-2 and progression on crizotinib. Neurologically stable patients with central nervous system (CNS) metastases were permitted to enroll. Patients with a history of interstitial lung disease or drug-related pneumonitis or who had received crizotinib within 3 days of the first dose of brigatinib were excluded. The major efficacy outcome measure was confirmed overall response rate (ORR) according to Response Evaluation Criteria in Solid Tumors (RECIST v1.1) as evaluated by an Independent Review Committee (IRC). Additional efficacy outcome measures included Investigator-assessed ORR, duration of response (DOR), intracranial ORR, and intracranial DOR.
A total of 222 patients were randomized to receive Alunbrig either 90 mg once daily (90 mg arm; n=112) or 180 mg once daily following a 7-day lead-in at 90 mg once daily (90→180 mg arm; n=110). Randomization was stratified by brain metastases (present versus absent) and best prior response to crizotinib (complete or partial response versus any other response/unevaluable).
Baseline demographic characteristics of the overall study population were: median age 54 years (range 18 to 82, 23% 65 and over), 67% White and 31% Asian, 57% female, 36% ECOG PS 0 and 57% ECOG PS 1, and 95% never or former smokers. The disease characteristics of the overall study population were: Stage IV disease in 98%, adenocarcinoma histology in 97%, prior systemic chemotherapy in 74%, metastatic disease to the brain in 69% (61% had received prior radiation to the brain), bone metastases in 39%, and liver metastases in 26% of patients. Sixty-four percent of patients had an objective response to prior crizotinib.
The median duration of follow-up was 8 months (range: 0.1-20.2). Efficacy results from ALTA are summarized in Table 5.
Table 5: ALTA Efficacy Results |
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Efficacy parameter |
IRC Assessment |
Investigator Assessment |
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90 mg once daily |
90→180 mg once daily |
90 mg once daily |
90→180 mg once daily |
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(N=112) |
(N=110) |
(N=112) |
(N=110) |
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CI = Confidence Interval; NE = Not Estimable |
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Overall Response Rate (95% CI) |
48% (39-58) |
53% (43-62) |
45% (35-54) |
54% (44-63) |
Complete Response, n (%) |
4 (3.6%) |
5 (4.5%) |
1 (0.9%) |
4 (3.6%) |
Partial Response, n (%) |
50 (45%) |
53 (48%) |
49 (44%) |
55 (50%) |
Duration of Response, median in months |
13.8 |
13.8 |
13.8 |
11.1 |
IRC assessment of intracranial ORR and intracranial DOR according to RECIST v1.1 in the subgroup of 44 patients with measurable brain metastases (≥10 mm in longest diameter) at baseline are summarized in Table 6. Duration of intracranial response was measured from date of first intracranial response until intracranial disease progression (new lesions, intracranial target lesion diameter growth ≥20% from nadir, or unequivocal progression of intracranial non-target lesions) or death.
Table 6: Intracranial Overall Response in Patients with Measurable Brain Metastases in ALTA |
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IRC Assessment |
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Efficacy parameter |
90 mg once daily |
90→180 mg once daily |
CI = Confidence Interval; NE = Not Estimable |
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Intracranial Overall Response Rate, (95 % CI) |
42% (23-63) |
67% (41-87) |
Complete Response, n (%) |
2 (7.7%) |
0 |
Partial Response, n (%) |
9 (35%) |
12 (67%) |
Duration of Intracranial Response, median (months) |
NE |
5.6 |
Among the 23 patients who exhibited an intracranial response, 78% of patients in the 90 mg arm and 68% of patients in the 90→180 mg arm maintained a response for at least 4 months.
How Supplied/Storage and Handling180 mg tablets: oval, white to off-white film-coated tablet with "U13" debossed on one side and plain on the other side; available in:
Bottle of 23 tablets |
NDC 63020-180-23 |
Bottle of 30 tablets |
NDC 63020-180-30 |
90 mg tablets: oval, white to off-white film-coated tablet with "U7" debossed on one side and plain on the other side; available in:
Bottle of 7 tablets |
NDC 63020-090-07 |
Bottle of 30 tablets |
NDC 63020-090-30 |
30 mg tablets: round, white to off-white film-coated tablet with "U3" debossed on one side and plain on the other side; available in:
Bottle of 21 tablets |
NDC 63020-113-21 |
Bottle of 30 tablets |
NDC 63020-113-30 |
Bottle of 180 tablets |
NDC 63020-113-18 |
90 mg / 7 count tablets (NDC 63020-090-07) and 180 mg / 23 count tablets (NDC 63020-180-23) are also available in a single carton as a one-month initiation pack:
One carton containing one bottle of 90 mg tablets (7 count) and one bottle of 180 mg tablets (23 count) |
NDC 63020-198-30 |
Store at controlled room temperature 20°C to 25°C (68°F to 77°F); excursions permitted between 15°C to 30°C (59°F to 86°F) (see USP).
Patient Counseling InformationAdvise the patient to read the FDA-approved patient labeling (Patient Information).
Inform patients of the following:
Interstitial Lung Disease (ILD)/Pneumonitis
Inform patients of the symptoms and risks of serious pulmonary adverse reactions such as ILD/pneumonitis. Advise patients to immediately report any new or worsening respiratory symptoms [see Warnings and Precautions (5.1)].
Hypertension
Advise patients of risks of hypertension and to promptly report signs or symptoms of hypertension [see Warnings and Precautions (5.2)].
Bradycardia
Advise patients to report any symptoms of bradycardia and to inform their healthcare provider about the use of heart and blood pressure medications [see Warnings and Precautions (5.3)].
Visual Disturbance
Advise patients to inform their healthcare provider of any new or worsening vision symptoms [see Warnings and Precautions (5.4)].
Creatine Phosphokinase (CPK) Elevation
Inform patients of the signs and symptoms of creatinine phosphokinase (CPK) elevation and the need for monitoring during treatment. Advise patients to inform their healthcare provider of any new or worsening symptoms of unexplained muscle pain, tenderness, or weakness [see Warnings and Precautions (5.5)].
Pancreatic Enzyme Elevation
Inform patients of the signs and symptoms of pancreatitis and the need to monitor for amylase and lipase elevations during treatment [see Warnings and Precautions (5.6)].
Hyperglycemia
Inform patients of the risks of new or worsening hyperglycemia and the need to periodically monitor glucose levels. Advise patients with diabetes mellitus or glucose intolerance that anti-hyperglycemic medications may need to be adjusted during treatment with Alunbrig [see Warnings and Precautions (5.7)].
Females and Males of Reproductive Potential
Embryo-Fetal Toxicity
Advise females and males of reproductive potential that Alunbrig can cause fetal harm [see Warnings and Precautions (5.8) and Use in Specific Populations (8.1)].
· Advise females of reproductive potential to inform their healthcare provider of a known or suspected pregnancy and to use effective non-hormonal contraception during treatment with Alunbrig and for at least 4 months after the final dose [see Use in Specific Populations (8.3].
· Advise males with female partners of reproductive potential to use effective contraception during treatment with Alunbrig and for at least 3 months after the final dose [see Use in Specific Populations (8.3)].
Lactation
Advise females not to breastfeed during treatment with Alunbrig and for at least 1 week following the final dose [see Use in Specific Populations (8.2)].
Infertility
Advise males of reproductive potential of the potential for reduced fertility from Alunbrig [see Use in Specific Populations (8.3) and Nonclinical Toxicology (13.1)].
Drug Interactions
Advise patients to inform their health care provider of all concomitant medications, including prescription medicines, over-the-counter drugs, vitamins, and herbal products. Inform patients to avoid grapefruit or grapefruit juice while taking Alunbrig [see Drug Interactions (7)].
Dosing and Administration
Instruct patients to start with 90 mg of Alunbrig once daily for the first 7 days and if tolerated, increase the dose to 180 mg once daily. Advise patients to take Alunbrig with or without food [see Dosage and Administration (2.1)].
Missed Dose
Advise patients that if a dose of Alunbrig is missed or if the patient vomits after taking a dose of Alunbrig, not to take an extra dose, but to take the next dose at the regular time [see Dosage and Administration (2.1)].
Manufactured for:
Takeda Pharmaceutical Company Limited
40 Landsdowne Street, Cambridge, MA 02139-4234
Alunbrig® is a registered trademark of ARIAD Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceutical Company Limited.
©2017 ARIAD Pharmaceuticals, Inc. All rights reserved.
PATIENT INFORMATION |
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This Patient Information has been approved by the U.S. Food and Drug Administration |
Issued: October 2017 |
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What is the most important information I should know about Alunbrig? · Lung problems. Alunbrig may cause severe or life-threatening swelling (inflammation) of the lungs any time during treatment, and can lead to death. These lung problems happen especially within the first week of treatment with Alunbrig. Symptoms may be similar to those symptoms from lung cancer. Tell your healthcare provider right away if you have any new or worsening symptoms, including: |
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trouble breathing or shortness of breath chest pain |
cough with or without mucus fever |
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· High blood pressure (hypertension). Alunbrig may cause high blood pressure. Your healthcare provider will check your blood pressure before starting and during treatment with Alunbrig. Tell your healthcare provider right away if you get headaches, dizziness, blurred vision, chest pain or shortness of breath. · Slow heart rate (bradycardia). Alunbrig may cause very slow heartbeats that can be severe. Your healthcare provider will check your heart rate during treatment with Alunbrig. Tell your healthcare provider right away if you feel dizzy, lightheaded, or faint during treatment with Alunbrig. Tell your healthcare provider if you start to take or have any changes in heart or blood pressure medicines. · Vision problems. Alunbrig may cause vision problems. Your healthcare provider may stop Alunbrig and refer you to an eye specialist if you develop severe vision problems during treatment with Alunbrig. Tell your healthcare provider right away if you have any loss of vision or any change in vision, including: |
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double vision seeing flashes of light blurry vision |
light hurting your eyes new or increased floaters |
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· Muscle pain, tenderness, and weakness (myalgia). Alunbrig may increase the level of an enzyme in your blood called creatine phosphokinase (CPK), which may be a sign of muscle damage. Your healthcare provider will do blood tests to check your blood levels of CPK during treatment with Alunbrig. Tell your healthcare provider right away if you get new or worsening signs and symptoms of muscle problems, including unexplained muscle pain or muscle pain that does not go away, tenderness, or weakness. · Inflammation of the pancreas (pancreatitis). Alunbrig may increase enzymes in your blood called amylase and lipase, which may be a sign of pancreatitis. Your healthcare provider will do blood tests to check your pancreatic enzyme blood levels during treatment with Alunbrig. Tell your healthcare provider right away if you get new or worsening signs and symptoms of pancreatitis, including upper abdominal pain that may spread to the back and get worse with eating, weight loss, or nausea. · High blood sugar (hyperglycemia). Alunbrig may increase your blood sugar levels. Your healthcare provider will do blood tests to check your blood sugar levels before starting and during treatment with Alunbrig. Your healthcare provider may need to start or change your blood sugar medicine to control your blood sugar levels. Tell your healthcare provider right away if you get new or worsening signs and symptoms of hyperglycemia, including: |
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feeling very thirsty needing to urinate more than usual feeling very hungry |
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feeling sick to your stomach feeling weak or tired feeling confused |
See "What are the possible side effects of Alunbrig?" for information about side effects. |
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What is Alunbrig? · that has a certain type of abnormal anaplastic lymphoma kinase (ALK) gene, and · that has spread to other parts of your body, and · who have taken the medicine crizotinib, but their NSCLC worsened or they cannot tolerate taking crizotinib. It is not known if Alunbrig is safe and effective in children. |
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Before you take Alunbrig, tell your healthcare provider about all of your medical conditions, including if you: · have lung or breathing problems · have high blood pressure · have a slow heartbeat · have any vision problems · have or have had pancreatitis · have diabetes mellitus or glucose intolerance · are pregnant or plan to become pregnant. Alunbrig can harm your unborn baby. Tell your healthcare provider right away if you become pregnant during treatment with Alunbrig or think you may be pregnant. o Females who are able to become pregnant should use effective non-hormonal birth control during treatment with Alunbrig and for at least 4 months after the final dose of Alunbrig. Birth control pills (oral contraceptives) and other hormonal forms of birth control may not be effective if used during treatment with Alunbrig. Talk to your healthcare provider about birth control choices that are right for you during treatment with Alunbrig. o Males who have female partners that are able to become pregnant should use effective birth control during treatment with Alunbrig and for at least 3 months after the final dose of Alunbrig. · are breastfeeding or plan to breastfeed. It is not known if Alunbrig passes into your breast milk. Do not breastfeed during treatment with Alunbrig and for 1 week after the final dose of Alunbrig. Tell your healthcare provider about all the medicines you take, including prescription medicines, over-the-counter medicines, vitamins, or herbal supplements. |
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How should I take Alunbrig? · Take Alunbrig exactly as your healthcare provider tells you to take it. Do not change your dose or stop taking Alunbrig unless your healthcare provider tells you to. · Your healthcare provider will start you on a low dose (90 mg) of Alunbrig for the first 7 days of treatment. If you tolerate this dose of Alunbrig well, your healthcare provider may increase your dose after the first 7 days of treatment. · Your healthcare provider may change your dose, temporarily stop, or permanently stop treatment with Alunbrig if you have side effects. · Take Alunbrig 1 time each day. · Take Alunbrig with or without food. · Swallow Alunbrig tablets whole. Do not crush or chew tablets. · If you miss a dose of Alunbrig, do not take the missed dose. Take your next dose at your regular time. · If you vomit after taking a dose of Alunbrig, do not take an extra dose. Take your next dose at your regular time. |
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What should I avoid while taking Alunbrig? · Avoid eating grapefruit or drinking grapefruit juice during treatment with Alunbrig. Grapefruit may increase the amount of Alunbrig in your blood. |
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What are the possible side effects of Alunbrig? · See "What is the most important information I should know about Alunbrig?" The most common side effects of Alunbrig include: |
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· nausea · diarrhea |
· fatigue · cough |
· headache |
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Alunbrig may cause fertility problems in males. This may affect your ability to father a child. Talk to your healthcare provider if you have concerns about fertility. |
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How should I store Alunbrig? · Store Alunbrig at room temperature 20°C to 25°C (68°F to 77°F). Keep Alunbrig and all medicines out of the reach of children. |
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General information about the safe and effective use of Alunbrig. |
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What are the ingredients in Alunbrig? |
NDC 63020-113-18
Alunbrig™
(brigatinib) tablets
30 mg
Rx Only
180 Tablets
Takeda Logo
NDC 63020-090-30
Alunbrig™
(brigatinib) tablets
90 mg
Rx Only
30 Tablets
Takeda Logo
NDC 63020-180-30
Alunbrig™
(brigatinib) tablets
180 mg
Rx Only
30 Tablets
Takeda Logo
NDC 63020-198-30
INITIATION PACK
Alunbrig™
(brigatinib) tablets
Rx Only
Oral Use
Usual Dose: One 90 mg tablet orally once daily for the first 7 days;
if tolerated, increase to one 180 mg tablet orally once daily.
See accompanying full Prescribing Information for complete details.
90 mg
7 Tablets
Take 1 tablet on
Day 1 – Day 7
180 mg
23 Tablets
Take 1 tablet on
Day 8 – Day 30
Alunbrig brigatinib tablet, film coated |
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Alunbrig brigatinib tablet, film coated |
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Alunbrig brigatinib tablet, film coated |
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Labeler - Millennium Pharmaceuticals, Inc. (804148757) |
Revised: 10/2017
Millennium Pharmaceuticals, Inc.
Next → Interactions