Xiaflex(胶原酶组织溶梭菌)是由某种细菌衍生的蛋白质混合物制成的。
Xiaflex用于治疗成人Dupuytren的挛缩。这种情况会导致手掌中的组织异常增厚。随着时间的流逝,这种情况可能会变得更糟,并在您的手掌上形成“绳子”,从而导致手指永久性弯曲。
Xiaflex还用于治疗成年男性的一种称为Peyronie病的相关疾病。这种状况导致在阴茎皮肤下形成疤痕组织或“斑块”,从而导致勃起过程中阴茎弯曲异常。
Xiaflex仅在一家名为Xiaflex REMS的特殊计划下通过认证的药房可用于治疗Peyronie病。您必须先注册该程序,并了解服用该药的风险。
接收Xiaflex之前,请告知您的医生是否有出血或凝血障碍,例如血友病。
Xiaflex可能会损害药物注射到手中的神经,腱或韧带。注射肿胀减轻后,如果您感到麻木,刺痛,疼痛加剧,手指向手腕弯曲困难,或者经治疗的手出现新的或恶化的运动问题,请致电医生。
Xiaflex可能还会损坏人的阴茎内的勃起组织,这可能需要进行手术矫正。如果阴茎出现淤青肿胀,排尿时疼痛,尿液中的血液,突然的勃起问题或勃起过程中阴茎出现“爆裂”的声音或感觉,请立即致电医生。
如果您对胶原酶溶组织梭状芽孢杆菌过敏,则不应使用Xiaflex。 Xiaflex不应用于治疗会影响尿道(将尿液从膀胱排出的管)的Peyronie病。
为确保Xiaflex对您安全,请告知您的医生是否患有:
出血或凝血障碍,例如血友病;要么
如果您服用血液稀释剂,例如华法林(Coumadin,Jantoven)。
FDA怀孕类别B。Xiaflex预计不会伤害未出生的婴儿。告诉医生您是否怀孕或打算在治疗期间怀孕。
胶原酶溶组织梭状芽孢杆菌是否会进入母乳,或者是否会损害哺乳婴儿,这一点尚不清楚。告诉您的医生,如果您在使用Xiaflex时正在母乳喂养婴儿。
Xiaflex被直接注射到患病手的“绳”或阴茎的“斑块”中。医护人员会给您注射。请非常仔细地遵循医生的剂量说明。
对于Dupuytren的挛缩:
通常,Xiaflex的治疗周期为1至3次,间隔4周。
注射后,在一天的其余时间内请勿触摸或压在手的治疗部位。保持经过治疗的手抬高直到睡前。
您可能需要短时用手夹板以保持手指伸直,尤其是在晚上。您可能还需要每天进行手指锻炼。遵循医生的指示。
注射到您的手后一到三天,您的医生将需要检查手以查看您的状况是否有所改善。
如果您仍然有脐带,医生可能会尝试通过拉长已治疗的手指来折断脐带。
如果肿胀消失后弯曲治疗的手指有困难,请致电医生。
对于佩罗尼氏病:
Xiaflex通常以2次注射的治疗周期给药,间隔为1至3天。
每次注射后,您的阴茎可能需要在短时间内用绷带包扎。按照您的医生的指示,戴绷带多长时间。
第二次注射后一到三天,医生将执行拉伸程序以帮助拉直阴茎曲线。
您可能还需要进行柔和的锻炼,每天在家中拉伸和拉直阴茎,持续6周。认真遵循有关如何执行这些练习的所有指示。
如果第一次注射引起阴茎疼痛或肿胀,则在第二次注射后至少2周内不应进行任何性活动。
Xiaflex用于Dupuytren挛缩的通常成人剂量:
将0.58 mg作为单次注射到目标索中,然后在大约24小时后进行手指伸展手术以促进未经历自发性断裂的个体的索断裂,并每隔4周进行两次后续注射,如有必要。
附加的电线应按顺序处理
如果您错过Xiaflex注射预约,请致电您的医生以获取指示。
由于Xiaflex由医疗专业人员在医疗环境中提供,因此服用过量的可能性不大。
注射Dupuytren挛缩症后,请勿弯曲或伸出已治疗手的手指,直到再次去看医生。伸出手指可能会使药物从治疗区域扩散开,从而使药物效果降低。在医生告诉您恢复正常活动之前,请避免使用已治疗的手进行任何剧烈的活动。
在治疗佩罗尼氏病期间,避免性活动。您的医生会告诉您何时可以安全恢复性行为。
如果您对Xiaflex有过敏反应,请寻求紧急医疗救助。胸痛,呼吸困难;感觉自己可能会昏倒;脸,嘴唇,舌头或喉咙肿胀。
Xiaflex可能会损害药物注射到手中的神经,腱或韧带。注射肿胀减轻后,如果您有以下情况,请致电医生:
麻木,刺痛,疼痛加剧;
无法将手指弯曲到手腕;要么
经治疗的手出现新的或恶化的运动问题。
Xiaflex可能还会损坏人的阴茎内的勃起组织,这可能需要进行手术矫正。如果您有以下情况,请立即致电您的医生:
阴茎淤青肿胀;
小便时疼痛,尿中有血;
突然的勃起问题;要么
勃起时阴茎有“爆裂”的声音或感觉。
如果您有以下情况,也请立即致电医生:
感染迹象,例如发烧,发冷,发红或肿胀;
剧烈疼痛,瘙痒或其他刺激;要么
感觉自己可能昏倒了(即使躺着)。
常见的Xiaflex副作用可能包括:
注射药物的地方肿胀,淤青,出血,疼痛或压痛;
肘部或腋下的腺体肿胀;
皮肤瘙痒,发红或变暖;
皮肤破裂
腋下疼痛;
治疗后的手有轻度疼痛或压痛;
阴茎或阴囊挫伤,勃起问题;要么
注射Xiaflex的阴茎上的皮肤变色,瘀青或水泡。
这不是副作用的完整列表,并且可能会发生其他副作用。打电话给您的医生,征求有关副作用的医疗建议。您可以通过1-800-FDA-1088向FDA报告副作用。
其他药物可能与溶组织性梭状芽孢杆菌胶原酶相互作用,包括处方药和非处方药,维生素和草药产品。向您的每个医疗保健提供者告知您现在使用的所有药物以及您开始或停止使用的任何药物。
版权所有1996-2020 Cerner Multum,Inc.版本:3.01。
注意:本文档包含有关胶原酶组织溶梭菌的副作用信息。此页面上列出的某些剂型可能不适用于商标名称Xiaflex。
Xiaflex的常见副作用包括:注射部位出血,瘙痒,瘀伤和瘀斑。有关不良影响的完整列表,请参见下文。
适用于胶原酶组织溶梭菌:溶液注射粉
注射途径(溶液粉)
已有报道使用体破裂(阴茎骨折)和严重的阴茎血肿。及时评估反映严重阴茎损伤的体征或症状,因为可能需要进行手术干预。胶原酶溶组织梭状芽胞杆菌只能通过名为Xiaflex REMS程序的受限程序获得。
除其所需的作用外,胶原酶组织溶梭状芽孢杆菌(Xiaflex中包含的活性成分)可能会引起某些不良作用。尽管并非所有这些副作用都可能发生,但如果确实发生了,则可能需要医疗护理。
服用胶原酶组织溶解梭状芽孢杆菌时,如果出现以下任何副作用,请立即咨询医生或护士:
更为常见的是Dupuytren挛缩
更常见—佩罗尼氏病
不太常见-佩罗尼氏病
发病率未知-Dupuytren挛缩
可能会发生胶原酶组织溶解梭状芽胞杆菌的一些副作用,通常不需要医疗。随着身体对药物的适应,这些副作用可能会在治疗期间消失。另外,您的医疗保健专业人员可能会告诉您一些预防或减少这些副作用的方法。
请咨询您的医疗保健专业人员,是否持续存在以下不良反应或令人讨厌,或者是否对这些副作用有任何疑问:
更为常见的是Dupuytren挛缩
适用于胶原酶组织溶解梭状芽胞杆菌:注射用粉剂
非常常见(10%或更多):四肢疼痛(35%),关节痛(11%)
常见(1%至10%):肩痛
罕见(0.1%至1%):腋窝肿块,胸壁痛,腹股沟痛,关节丛,关节僵硬,四肢不适,肌肉痉挛,肌肉无力,肌肉骨骼僵硬,颈部疼痛,肌腱断裂[参考]
非常常见(10%或更多):注射部位出血(38%),注射部位反应(红斑,炎症,刺激,疼痛,发热)(35%),注射部位肿胀和浮肿(24%),瘙痒(15%) ),血泡(13%)
常见(1%至10%):瘀斑,多汗症,皮疹,皮肤撕裂伤
罕见(0.1%至1%):湿疹,面部肿胀,皮肤疼痛,皮肤脱落,皮肤病变,结sc,皮肤变色,皮肤紧绷[参考]
非常常见(10%或更多):周围水肿(大多数情况是注射的手肿胀)(73%)
未报告频率:迷走神经性晕厥(手指伸直术后) [参考]
非常常见(10%或更多):挫伤(任何身体系统)和瘀斑(70%),压痛(24%)
常见(1%至10%):腋窝痛
罕见(0.1%至1%):乳房压痛,乳房肥大[参考]
常见(1%至10%):淋巴结肿大,淋巴结痛
罕见(0.1%至1%):血小板减少症[参考]
常见(1%至10%):恶心
罕见(0.1%至1%):腹泻,呕吐,上腹痛[参考]
佩罗尼氏病患者:
非常常见(10%或更高):阴茎血肿(65.5%),阴茎肿胀(55%),阴茎疼痛(45.4%),阴茎瘀斑(14.5%),阴茎中有爆裂声或爆裂感,有时被描述为“拍打”或“开裂”,有时伴有肿胀,血肿和/或疼痛(13.2%)
常见(1%至10%):血泡(4.5%),阴茎水泡(3.3%),生殖器瘙痒(3.1%),勃起疼痛(2.9%),勃起功能障碍(1.8%),程序性疼痛(1.6%) ,注射部位囊泡(1.3%),局部水肿(1.3%),性交困难(1.1%),注射部位瘙痒(1.1%),结节(1.1%),耻骨上疼痛(1.1%)
罕见(0.1%至1%):体破裂(阴茎骨折)(0.5%) [参考]
非常常见(10%或更多):淋巴结病(13%)
常见(1%至10%):淋巴结痛
罕见(0.1%至1%):血小板减少症[参考]
罕见(0.1%至1%):过敏[参考]
罕见(0.1%至1%):注射部位蜂窝织炎,淋巴管炎[Ref]
常见(1%至10%):灼热感,头晕,头痛,感觉不足,感觉异常
罕见(0.1%至1%):迷失方向,躁动,失眠,易怒,
躁动[参考]
罕见(0.1%至1%):眼睑浮肿[参考]
罕见(0.1%至1%):呼吸困难,换气过度[参考]
1.澳大利亚药学会“ APPGuide在线。澳大利亚处方产品在线指南。可从以下网址获得:URL:http://www.appco.com.au/appguide/default.asp”。 ([2006]):
2.“产品信息。Xiaflex(胶原酶组织溶梭菌)。”宾夕法尼亚诺里斯敦的Auxilium Pharmaceuticals Inc.
3. Cerner Multum,Inc.“英国产品特性摘要”。 00
某些副作用可能没有报道。您可以将其报告给FDA。
临床研究中,在接受Xiaflex治疗的1044名患者中,有5名(0.5%)发生了身体破裂(阴茎骨折)的不良反应。在其他接受Xiaflex疗法治疗的患者中(1044例中有9例; 0.9%),有阴茎瘀斑或血肿,阴茎突然消肿和/或阴茎“爆裂”的声音或感觉的综合报道,在这些情况下,诊断为下肢破裂不能排除。据报道,在接受Xiaflex治疗的1044名患者中,有39名(3.7%)有严重的阴茎血肿为不良反应[见警告和注意事项(5.2)] 。
应及时评估可能反映出严重的阴茎损伤的体征或症状,以评估可能需要手术干预的体破裂或严重的阴茎血肿[见警告和注意事项(5.2)] 。
由于存在身体破裂或其他严重阴茎损伤的风险,Xiaflex仅可通过名为Xiaflex REMS计划的风险评估和缓解策略(REMS)下的受限计划,用于治疗Peyronie病[请参阅警告和注意事项(5.3) ] 。
Xiaflex适用于用可触知的脐带治疗成人Dupuytren挛缩症的患者。
Xiaflex被指定用于治疗患有Peyronie病的成年男性,治疗开始时斑块和弯曲度至少达到30度。
Dupuytren挛缩症的用药概述
Xiaflex应由经验丰富的医疗服务提供者进行管理,该医生应具有手部注射程序和Dupuytren挛缩症患者的治疗经验。
Xiaflex(以冻干粉形式提供)在使用前必须与提供的稀释剂一起配制[见剂量和用法(2.1)] 。 Xiaflex的剂量为每次注射到掌指趾关节(MP)关节或近趾指间关节(PIP)关节挛缩的可触知脐带中的剂量为0.58 mg [请参阅剂量和用法(2.1)] 。每个小瓶的Xiaflex和无菌稀释剂仅可用于单次注射。如果在治疗期间要用同一只手治疗两个关节,则每次重组和注射时都应使用单独的小瓶和注射器。
表1显示了用于病灶内注射的用于重构的无菌稀释剂的体积和重构的Xiaflex溶液的概述[参见剂量和给药方法(2.1)] 。注射后约24到72小时,如果持续存在挛缩以促进脐带破裂,请进行指伸手术[参见剂量和用法(2.1)] 。
对于影响线 MP关节 | 对于影响线 画中画关节 | |
---|---|---|
1用于病灶内注射的重构Xiaflex溶液含有0.58 mg Xiaflex。 注意:整个重构的Xiaflex溶液均包含0.9 mg Xiaflex。 注射后残留在小瓶中的重组Xiaflex溶液应丢弃。 | ||
无菌稀释剂 | ||
卷 | 0.39毫升 | 0.31毫升 |
重组的Xiaflex注射液1 | ||
卷 | 0.25毫升 | 0.20毫升 |
Xiaflex注射和手指伸展手术后四个星期,如果仍保留MP或PIP挛缩,可以用0.58 mg单剂量的Xiaflex重新注射脐带,并且可以重复手指伸展程序(术后约24至72小时)注射)。每根脐带最多可注射3次,每次间隔约4周。
在就诊期间,根据注射程序,用同一只手最多进行两次注射。在治疗就诊期间,可以在两个位置注射影响两个关节的两条可触知的绳索,或在同一根手指上注射影响同一手指的两个关节的一条可触知的绳索。如果患者有其他可触知的带MP或PIP关节挛缩的绳索,则可以在相隔约4周的其他治疗就诊时向这些绳索注射Xiaflex。
冻干粉对Dupuytren挛缩的重构
注射Dupuytren挛缩前的准备工作
Dupuytren挛缩的注射程序
Dupuytren挛缩的手指伸直程序
佩罗尼氏病的剂量概述
Xiaflex应由在男性泌尿科疾病治疗方面经验丰富的医疗服务提供者进行管理,该医疗服务提供者已经完成了使用Xiaflex治疗Peyronie病所需的培训。
使用冻干粉形式提供的Xiaflex,在使用前必须与提供的稀释剂一起配制[参见剂量和用法(2.2)] 。 Xiaflex的剂量是每次向Peyronie斑中注射0.58 mg。如果存在一个以上的斑块,则注入该斑块中,导致曲率变形。
一个疗程最多包含4个疗程。每个治疗周期包括两个Xiaflex注射程序[请参阅剂量和用法(2.2)]和一个阴茎建模程序[请参阅剂量和用法(2.2)]。第二次Xiaflex注射程序在第一次之后的1至3天进行。在第二次注射治疗周期后的1至3天进行阴茎建模程序。治疗周期之间的间隔大约为六周。因此,治疗过程最多包括8个注射程序和4个建模程序。
如果在第一个,第二个或第三个治疗周期后曲率变形小于15度,或者如果医疗保健提供者确定临床上未进一步指示治疗,则不应进行后续治疗周期。
Xiaflex的一个以上疗程的安全性尚不清楚。
表2显示了用于病灶内注射的用于重构的无菌稀释剂的体积和重构的Xiaflex溶液的概述[见剂量和给药方法(2.2)] 。
1用于病灶内注射的重构Xiaflex溶液含有0.58 mg Xiaflex。 | |
注意:整个重构的Xiaflex溶液均包含0.9 mg Xiaflex。 注射后残留在小瓶中的重组Xiaflex溶液应丢弃。 | |
无菌稀释剂 | |
卷 | 0.39毫升 |
重组的Xiaflex注射液1 | |
卷 | 0.25毫升 |
冻干粉对佩罗尼氏病的重建
确定佩罗尼氏病的治疗区域
佩罗尼氏病的注射程序
佩罗尼氏病的阴茎建模程序
阴茎建模有助于缓解曲率变形并拉直阴茎杆。在每个治疗周期的第二次注射后1至3天进行随访,对松弛的阴茎执行阴茎建模程序(如下所述)以拉伸和拉长已治疗的斑块:
除了办公室内的阴茎建模程序外,还应指导患者在每个治疗周期的研究者对阴茎斑块进行建模访问后的6周内,每天在家进行阴茎建模活动,具体如下:
Xiaflex装在一次性玻璃瓶中,其中含有0.9 mg溶组织性胶原酶梭状芽胞杆菌,为无菌冻干粉,用于重组。包装中的无菌稀释剂在一次性玻璃瓶中提供,该玻璃瓶中有3 mL的0.3 mg / mL的二水合氯化钙和0.9%的氯化钠。
Xiaflex禁忌症:
在Dupuytren挛缩症的临床试验的对照和非对照部分中,Xiaflex注射后发生屈肌腱断裂[见不良反应(6.1)] 。将Xiaflex注射到含胶原蛋白的结构(例如手的腱或韧带)中可能会损坏这些结构,并可能造成永久性损伤,例如腱断裂或韧带损坏。因此,只能将Xiaflex注射到具有MP或PIP关节挛缩症的胶原线中,并应注意避免注射到肌腱,神经,血管或手的其他含胶原结构中。当注入影响无名指的PIP关节的软线时,针头插入的深度不应超过2至3 mm,并且应避免在掌指折痕的远端注入4 mm以上的距离[请参阅剂量和用法(2.1)] 。
其他与Xiaflex相关的严重局部不良反应包括滑轮断裂,韧带损伤,复杂的局部疼痛综合征(CRPS),手部感觉异常和皮肤撕裂伤(撕裂)。在历史悠久的上市后售后试验中,与安慰剂对照的上市前试验中最多同时注射三剂相比,两次同时注射Xiaflex治疗的受试者皮肤裂伤的发生率更高(22%) 。上市后已经报道了在手指伸展手术后需要植皮的皮肤裂伤病例。应及时评估可能反映出已注射手指/手严重受伤的体征或症状,因为可能需要进行手术干预。
在Peyronie病的对照和非对照临床试验中,在1044例接受Xiaflex治疗的患者中,有5例(0.5%)接受Xiaflex注射后,据报道体破裂是不良反应。
在其他接受Xiaflex疗法治疗的患者中(1044例中有9例; 0.9%),有阴茎瘀斑或血肿,阴茎突然消肿和/或阴茎“爆裂”的声音或感觉的综合报道,在这些情况下,诊断为下肢破裂不能排除。这些患者无需手术干预即可治疗,但长期后果尚不清楚。
在佩罗尼氏病的对照和非对照临床试验中,也报告了严重的阴茎血肿为1044例患者中的39例(3.7%)的不良反应[见不良反应( 6 )] 。
应及时评估可能反映出对阴茎严重伤害的体征或症状,以评估可能需要手术干预的体破裂或严重的阴茎血肿。
将Xiaflex注射到含胶原的结构(如阴茎海绵体)中可能会损坏这些结构,并可能造成诸如身体破裂(阴茎骨折)的伤害。因此,只能将Xiaflex注射到Peyronie斑块中,并应避免注射到尿道,神经,血管,海绵体或阴茎的其他含胶原结构中。
由于在Peyronie病的治疗中存在身体破裂(阴茎骨折)或其他严重阴茎损伤的风险,因此只能通过Xiaflex REMS程序获得Xiaflex [请参阅警告和注意事项(5.2)] 。
Xiaflex REMS程序的必需组件包括以下内容:
有关更多信息,请访问www.XiaflexREMS.com或1-877-313-1235。
在Dupuytren挛缩症的临床试验的对照部分中(研究1和2),与接受安慰剂治疗的患者(占1%)相比,接受Xiaflex治疗的患者(占15%)中有更大比例的患者在轻度过敏反应后(直至瘙痒)出现轻度过敏反应(瘙痒)。 3次注射。 Dupuytren挛缩症患者多次注射Xiaflex后,Xiaflex相关性瘙痒的发生率增加。
在Peyronie病的临床试验的双盲,安慰剂对照部分(研究1和2)中,接受Xiaflex治疗的患者(4%)比接受安慰剂治疗的患者(1%)在局部瘙痒后比例更高多达4个治疗周期(涉及多达8个Xiaflex注射程序)。每次注射后,与Xiaflex相关的瘙痒症的发生率相似,而与注射次数无关。
由于Xiaflex含有外源蛋白质,因此可能发生对Xiaflex的严重过敏反应。上市后临床试验(研究3)报告了过敏反应的患者,该患者先前曾接受过Xiaflex的治疗以治疗Dupuytren挛缩。连续进行Xiaflex注射后,一些患有Dupuytren挛缩症的患者会产生更高比例和更高滴度的IgE抗药物抗体。医护人员应准备好应对Xiaflex注射后的严重过敏反应。
在Dupuytren挛缩症的Xiaflex试验中(研究1和2),分别用Xiaflex治疗的患者中有70%和38%出现了瘀斑/挫伤或注射部位出血(见表3)。在针对Peyronie病的Xiaflex对照试验中(研究1和2),接受Xiaflex治疗的患者中有65.5%发生了阴茎血肿,而14.5%则发生了阴茎瘀斑(见表4)。凝血异常的患者(服用小剂量阿司匹林的患者除外,例如每天最多150 mg)被排除在这些研究之外。
因此,尚不知道Xiaflex在Xiaflex给药前7天内接受抗凝药物(小剂量阿司匹林(例如每天最多150 mg)除外)患者的疗效和安全性。此外,建议避免在患有凝血功能障碍的患者中使用Xiaflex,包括接受抗凝剂治疗的患者(小剂量阿司匹林除外)。
标签中其他地方更详细地讨论了患有Dupuytren挛缩症的患者的以下严重不良反应:
标签中其他地方更详细地讨论了佩罗尼氏病患者的以下严重不良反应:
由于临床研究是在广泛不同的条件下进行的,因此无法将在某种药物的临床研究中观察到的不良反应率直接与另一种药物的临床研究中观察到的不良反应率进行比较,并且可能无法反映实际中观察到的不良反应率。
在Xiaflex研究的对照和非对照部分(2630次Xiaflex注射)中接受0.58 mg Xiaflex的1082名患者中,有3名(0.3%)患者在注射后7天内出现了被治疗手指的屈肌腱断裂。
下文所述数据是基于直到第90天时患有Dupuytren挛缩症的患者的两项汇总,随机,双盲,安慰剂对照试验(研究1和2)。在这些试验中,患者接受了最多3次0.58 mg的Xiaflex或安慰剂注射,每次注射之间间隔约4周,并且患者在注射后的第二天进行了手指伸展手术,如果需要的话,以促进脐带破裂[请参见临床研究(14)] 。这些试验由374位患者组成,其中249位和125位分别接受了0.58 mg的Xiaflex和安慰剂。平均年龄为63岁,男性为80%,女性为20%,白人为100%。
在研究1和研究2至90天的安慰剂对照部分中,分别进行多达3次注射后,接受Xiaflex治疗和接受安慰剂治疗的患者分别有98%和51%出现不良反应。超过35%的Xiaflex药物治疗患者中,注射的肢体有不良反应。这些局部反应中约有81%在Xiaflex注射后4周内无需干预即可解决。不论给药次数如何,每次注射的不良反应特征均相似。但是,随着注射次数的增加,瘙痒症的发生率也会增加[参见警告和注意事项(5.4)]。
在Xiaflex临床试验中,对Dupuytren挛缩症患者最常报告的不良药物反应(≥25%)包括周围水肿(主要是注射的手肿胀),挫伤,注射部位出血,注射部位反应和治疗后肢体疼痛。表3显示了在第90天之前,经过多达3次注射的安慰剂对照试验,在Xiaflex治疗的患者中报告或大于5%的不良反应发生率高于安慰剂治疗的患者(研究1和2)。
一个大多数事件都肿胀注入手。 | ||
b包括以下术语:挫伤(任何身体系统)和瘀斑 | ||
c包括以下术语:注射部位反应,注射部位红斑,注射部位发炎,注射部位刺激,注射部位疼痛和注射部位发热 | ||
d包括以下术语:注射部位肿胀和注射部位浮肿 | ||
e包括以下术语:瘙痒和注射部位瘙痒 | ||
f包括以下术语:淋巴结肿大和腋窝肿块 | ||
不良反应 | 夏福 N = 249 | 安慰剂 N = 125 |
所有不良反应 | 98% | 51% |
水肿外围一 | 73% | 5% |
挫伤b | 70% | 3% |
注射部位出血 | 38% | 3% |
注射部位反应c | 35% | 6% |
肢体疼痛 | 35% | 4% |
压痛 | 24% | 0% |
注射部位膨胀d | 24% | 6% |
Ë瘙痒 | 15% | 1% |
Lymphadenopathy f | 13% | 0% |
Skin Laceration | 9% | 0% |
Lymph Node Pain | 8% | 0% |
红斑 | 6% | 0% |
Axillary Pain | 6% | 0% |
Some patients developed vasovagal syncope after finger extension procedures.
The safety of two concurrent injections of Xiaflex 0.58 mg into Dupuytren's cords in the same hand was evaluated in a historically-controlled, open-label multi-center trial in 715 adult subjects with Dupuytren's contracture (Study 3). In Study 3, finger extension procedures were performed approximately 24 to 72 hours after injection. The patient demographics were similar to Studies 1 and 2.
Out of 715 patients who received two concurrent injections of Xiaflex 0.58 mg in the same hand (1450 Xiaflex injections) in Study 3, one (0.1%) patient experienced a tendon rupture of the treated finger within 3 days of the injection.
Table 4 shows the incidence of adverse reactions that were reported in greater than or equal to 5% of Xiaflex-treated patients after two concurrent injections of Xiaflex in the same hand through Day 60 in Study 3.
不良反应 | Xiaflex N=715 |
Subjects with ≥1 adverse reaction | 95% |
Edema peripheral | 77% |
挫伤 | 59% |
四肢疼痛 | 51% |
Laceration | 22% |
瘙痒 | 15% |
注射部位疼痛 | 14% |
淋巴结病 | 13% |
Blood blister | 12% |
Injection site hematoma | 8% |
Axillary pain | 7% |
Injection site hemorrhage | 6% |
Injection site swelling | 5% |
瘀斑 | 5% |
Safety of Retreatment of Recurrent Contractures
An observational, open label study was conducted in subjects who had participated in Xiaflex clinical trials for Dupuytren's contracture (Study 4). A subset of patients who had recurrence of contracture in a joint that was previously successfully treated with Xiaflex in Study 4 were retreated (Study 5). No new safety signals were identified among subjects who were retreated with Xiaflex.
由于临床研究是在广泛不同的条件下进行的,因此无法将在某种药物的临床研究中观察到的不良反应率直接与另一种药物的临床研究中观察到的不良反应率进行比较,并且可能无法反映实际中观察到的不良反应率。
In the controlled and uncontrolled clinical studies of Xiaflex in Peyronie's disease, 1044 patients received a total of 7466 Xiaflex injections.
Corporal Rupture and Other Serious Penile Injury
The data described below are based on two identical, pooled, randomized, double-blind, placebo-controlled, multi-center trials through Day 365 in patients with Peyronie's disease (Studies 1 and 2). These trials included 832 patients of whom 551 and 281 received Xiaflex and placebo, respectively. In these trials, patients were given up to 4 treatment cycles of Xiaflex or placebo. In each cycle, two injections of Xiaflex or two injections of placebo were administered 1 to 3 days apart. A penile modeling procedure was performed at the study site on patients 1 to 3 days after the second injection of the cycle. The treatment cycle was repeated at approximately 6-week intervals up to three additional times, for a maximum of 8 total injection procedures and 4 total modeling procedures [see Clinical Studies (14.2)].
The majority of Peyronie's patients experienced at least one adverse reaction (92% Xiaflex-treated patients, 61% placebo-treated). Most adverse reactions were local events of the penis and groin and the majority of these events were of mild or moderate severity, and most (79%) resolved within 14 days of the injection. The adverse reaction profile was similar after each injection, regardless of the number of injections administered.
The most frequently reported adverse drug reactions (≥ 25%) in the Xiaflex clinical trials in patients with Peyronie's disease were penile hematoma, penile swelling, and penile pain. Table 5 shows the incidence of adverse reactions that were reported in greater than or equal to 1% of Xiaflex-treated patients and at a frequency greater than placebo-treated patients after up to 8 injections in the pooled placebo-controlled trials through Day 365.
a Includes: injection site hematoma and penile hematoma were reported with the verbatim term of penile bruising or injection site bruising in 87% of subjects. | ||
b Includes: injection site swelling, penile edema, penile swelling, local swelling, scrotal swelling, and injection site edema. | ||
c Includes: injection site pain, penile pain, and injection site discomfort. | ||
d Includes: contusion, ecchymoses, penile hemorrhage, and injection site hemorrhage. | ||
不良反应 | Xiaflex N = 551 | 安慰剂 N=281 |
All Adverse Reactions | 84.2% | 36.3% |
Penile hematoma a | 65.5% | 19.2% |
Penile swelling b | 55.0% | 3.2% |
Penile pain c | 45.4% | 9.3% |
Penile ecchymoses d | 14.5% | 6.8% |
Blood blister | 4.5% | 0 |
Penile blister | 3.3% | 0 |
Pruritus genital | 3.1% | 0 |
Painful erection | 2.9% | 0 |
勃起功能障碍 | 1.8% | 0.4% |
皮肤变色 | 1.8% | 0 |
Procedural pain | 1.6% | 0.7% |
Injection site vesicles | 1.3% | 0 |
Localized edema | 1.3% | 0 |
Dyspareunia | 1.1% | 0 |
注射部位瘙痒 | 1.1% | 0 |
Nodule | 1.1% | 0 |
Suprapubic pain | 1.1% | 0 |
Severe penile hematoma or severe injection site hematoma were reported in 33/551 (6.0%) of Xiaflex-treated patients and 0/281 (0%) of placebo-treated patients, in Studies 1 and 2 combined.
Reports of penile “popping” sounds or sensations
A popping noise or popping sensation in the penis, sometimes described as “snapping” or “cracking”, and sometimes accompanied by detumescence, hematoma and/or pain, were reported in 73/551 (13.2%) Xiaflex-treated patients and 1/281 (0.3%) placebo-treated patients.
There were no clinically meaningful differences in the incidence of adverse events following treatment with Xiaflex based on the severity of baseline erectile dysfunction or concomitant phosphodiesterase type 5 (PDE5) inhibitor use.
Xiaflex was not associated with shortening of penile length in clinical trials in the treatment of Peyronie's disease.
During clinical studies in Dupuytren's contracture and Peyronie's disease, patients were tested at multiple time points for antibodies to the protein components of Xiaflex (AUX-I and AUX-II).
In the Dupuytren's contracture clinical studies (Studies 1 and 2), at 30 days post the first injection of Xiaflex 0.58 mg, 92% of patients had antibodies against AUX-I detected and 86% of patients had antibodies against AUX-II detected. After the fourth injection of Xiaflex, every Xiaflex-treated patient developed high titers of antibodies to both AUX-I and AUX-II. After five years more than 90 percent of patients remained seropositive for anti-AUX-I and anti-AUX-II antibody (Study 4). Neutralizing antibodies were assayed for all patients (204) in Study 1. Neutralizing antibodies to AUX-I or AUX-II, were detected in 10% and 21%, respectively, of patients treated with Xiaflex. Among patients in Study 3 who reported no prior exposure to Xiaflex, 97% of patients had antibodies against AUX-I and AUX-II after two concurrent doses of Xiaflex 0.58 mg (total dose of 1.16 mg) in the same hand. In Study 5, treatment of recurrent contractures with Xiaflex resulted in similar immunogenicity results as seen in Studies 1 and 2.
In the Peyronie's disease clinical studies, at 6 weeks after the first treatment cycle of Xiaflex 0.58 mg, approximately 75% of patients had antibodies against AUX-I and approximately 55% of patients had antibodies against AUX-II. Six weeks after the eighth injection (fourth treatment cycle) of Xiaflex, >99% of Xiaflex-treated patients developed high titers of antibodies to both AUX-I and AUX-II. Neutralizing antibodies were assayed for a subset of 70 samples selected to be representative of high and low titer binding antibody responses at week 12 of treatment. For each subject in whom a Week 12 sample was selected, the corresponding Week 6, 18, 24, and 52 samples were assayed if they were also binding antibody positive. Neutralizing antibodies to AUX-I or AUX-II, were detected in 60% and 51.8%, respectively, of patients tested.
In patients treated for these two indications, there was no apparent correlation of antibody frequency, antibody titers, or neutralizing status to clinical response or adverse reactions.
Since the protein components in Xiaflex (AUX-I and AUX-II) have some sequence homology with human matrix metalloproteinases (MMPs), anti-product antibodies could theoretically interfere with human MMPs. In vitro studies showed no evidence of cross-reactivity between anti-drug-antibody positive patient sera and a series of relevant MMPs. In addition, no clinical safety concerns related to the inhibition of endogenous MMPs have been observed.
Immunogenicity assay results are highly dependent on the sensitivity and specificity of the assay used in detection and may be influenced by several factors, including sample handling, timing of sample collection, concomitant medications, and underlying disease. For these reasons, comparison of incidence of antibodies to collagenase clostridium histolyticum with the incidence of antibodies to other products may be misleading.
Anticoagulant drugs: Xiaflex should be used with caution in patients receiving concomitant anticoagulants (except for low-dose aspirin) [see Warnings and Precautions (5.5)] .
Pregnancy Category B
There are no adequate and well-controlled studies of Xiaflex in pregnant women. Because animal reproduction studies are not always predictive of human response, Xiaflex should be used during pregnancy only if clearly needed.
风险摘要
Based on animal data, Xiaflex is not predicted to increase the risk for major developmental abnormalities in humans.
人数据
Human pharmacokinetic studies showed that Xiaflex levels were not quantifiable in the systemic circulation following injection into a Dupuytren's cord.
Low levels of Xiaflex were quantifiable in the plasma of evaluable male subjects for up to 30 minutes following administration of Xiaflex into the penile plaque of subjects with Peyronie's disease [see Clinical Pharmacology (12.3)].
Almost all patients develop anti-product antibodies (anti-AUX-I and anti-AUX-II) after treatment with Xiaflex, and the clinical significance of anti-product antibody formation on a developing fetus is not known [see Adverse Reactions (6)].
动物资料
Reproduction studies have been performed in rats with intravenous exposures up to approximately 11 times the maximum recommended human dose (MRHD) of Xiaflex on a mg/m 2 basis, and have revealed no evidence of impaired fertility or harm to the fetus due to collagenase clostridium histolyticum.
It is not known whether collagenase clostridium histolyticum is excreted in human milk. Because many drugs are excreted in human milk, caution should be exercised when Xiaflex is administered to a nursing woman.
The safety and effectiveness of Xiaflex in pediatric patients less than 18 years old have not been established.
Of the 249 Xiaflex-treated patients in the double-blind, placebo-controlled, clinical trials in Dupuytren's contracture (Studies 1 and 2), 104 (42%) were 65 years of age or older and 9% were 75 years of age or older. Of the 551 Xiaflex-treated patients in the double-blind, placebo-controlled, clinical trials in Peyronie's disease (Studies 1 and 2), 100 (18%) were 65 years of age or older and 5 (0.9 %) were 75 years of age or older. No overall differences in safety or effectiveness of Xiaflex were observed between these patients and younger patients.
The effects of overdose of Xiaflex are unknown. It is possible that multiple simultaneous or excessive doses of Xiaflex may cause more severe local effects than the recommended doses including serious adverse reactions in the injected area (eg, tendon ruptures or corporal ruptures dependent on the injection site). Supportive care and symptomatic treatment are recommended in these circumstances.
Xiaflex contains purified collagenase clostridium histolyticum, consisting of two microbial collagenases in a defined mass ratio, Collagenase AUX-I and Collagenase AUX-II, which are isolated and purified from the fermentation of Clostridium histolyticum bacteria.
Collagenase AUX-I is a single polypeptide chain consisting of approximately 1000 amino acids of known sequence. It has an observed molecular weight of 114 kiloDaltons (kDa). It belongs to the class I Clostridium histolyticum collagenases.
Collagenase AUX-II is a single polypeptide chain consisting of approximately 1000 amino acids of deduced sequence. It has an observed molecular weight of 113 kDa. It belongs to the class II Clostridium histolyticum collagenases.
Xiaflex is supplied as a sterile lyophilized powder (white cake) intended for reconstitution with the supplied sterile diluent (0.3 mg/mL calcium chloride dihydrate in 0.9% sodium chloride) prior to intralesional injection into a Dupuytren's cord or a Peyronie's plaque.
Xiaflex is available in single-use, glass vials containing 0.9 mg of collagenase clostridium histolyticum. Each vial also contains 0.5 mg of hydrochloric acid, 18.5 mg of sucrose, and 1.1 mg of tromethamine.
Collagenases are proteinases that hydrolyze collagen in its native triple helical conformation under physiological conditions, resulting in lysis of collagen deposits.
Injection of Xiaflex into a Dupu
已知总共有50种药物与Xiaflex(胶原酶组织溶解梭状芽胞杆菌)相互作用。
查看Xiaflex(溶血性胶原酶梭状芽孢杆菌)与以下药物的相互作用报告。
Xiaflex(胶原酶组织溶梭菌)与1种疾病相互作用,包括:
具有高度临床意义。避免组合;互动的风险大于收益。 | |
具有中等临床意义。通常避免组合;仅在特殊情况下使用。 | |
临床意义不大。降低风险;评估风险并考虑使用替代药物,采取措施规避相互作用风险和/或制定监测计划。 | |
没有可用的互动信息。 |