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Halaven 甲磺酸艾日布林针剂

通用名称甲磺酸艾日布林针剂 Eribulin Mesilate
品牌名称Halaven
产地|公司日本(Japan) | 卫材(Eisai)
技术状态原研产品
成分|含量1mg/2.0ml
包装|存储1瓶/盒 室温
微信客服
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通用中文 甲磺酸艾日布林针剂 通用外文 Eribulin Mesilate
品牌中文 品牌外文 Halaven
其他名称 ハラヴェン静注
公司 卫材(Eisai) 产地 日本(Japan)
含量 1mg/2.0ml 包装 1瓶/盒
剂型给药 储存 室温
适用范围 转移性乳腺癌
通用中文 甲磺酸艾日布林针剂
通用外文 Eribulin Mesilate
品牌中文
品牌外文 Halaven
其他名称 ハラヴェン静注
公司 卫材(Eisai)
产地 日本(Japan)
含量 1mg/2.0ml
包装 1瓶/盒
剂型给药
储存 室温
适用范围 转移性乳腺癌

使用说明书

(免责声明:本说明书仅供参考,不作为治疗的依据,不可取代任何医生、药剂师等专业性的指导。本站不提供治疗建议,药物是否适合您,请专业医生(或药剂师)决定。)
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中文说明

(免责声明:本说明书仅供参考,不作为治疗的依据,不可取代任何医生、药剂师等专业性的指导。本站不提供治疗建议,药物是否适合您,请专业医生(或药剂师)决定。)

简介:

 

Halaven(eribulin mesylate)注射剂
批准日期:2010年11月15日;公司:Eisai Co., Ltd.
初始美国批准:2010
适应证和用途
(1)HALAVEN是一种微管抑制剂适用于转移乳癌患者的治疗,患者为转移疾病治疗既往接受至少两种化疗方案。既往治疗应已包括一种蒽环类和一种紫杉烷类或者辅助或转移情况。
剂量和给药方法
(1)给予1.4mg/m2 静脉历时2至5分钟在21天疗程的第1天和第8天。
(2)在有肝受损和中度肾受损患者中减低剂量。
(3)不要与其它药物混合或与含葡萄糖溶液给药。
剂型和规格
静脉给药。Eribulin mesylate注射剂。1mg每2mL(0.5mg每mL)。
禁忌证
无。
警告和注意事项
(1)中性粒细胞减少:监测外周血细胞计数和如适当调整剂量。
(2)周围神经病变:监查神经病变征象。用延迟和调整剂量处理。
(3)在妊娠中使用:当给予妊娠妇女时可能发生胎儿危害。
(4)QT延长:在有充血性心衰,心动过缓,已知延长QT间期药物,和电解质异常患者中监视QT间期延长。避免在患者有先天性长QT综合征.
不良反应
最常见不良反应(发生率≥25%)是中性粒细胞减少,贫血,虚弱/疲劳,脱发,周围神经病变,恶心,和便秘。
特殊人群中的使用
(1)哺乳母亲:终止药物或哺乳,考虑药物对母亲的重要性。
(2)肝受损:对轻度(Child-Pugh A)和中度(Child-Pugh B)肝受损患者建议较低起始量。未研究严重肝受损(Child-Pugh C)患者。
(3)肾受损:对中度(CrCl 30-50 mL/min)肾受损患者建议较低起始量。未研究严重(CrCl < 30 mL/min)肾受损患者。
----------------------------------------------------

一般的名称
エリブリンメシル酸塩製剤
警告
1. 本剤を含むがん化学療法は、緊急時に十分な対応ができる医療施設において、がん化学療法に十分な知識・経験を持つ医師のもとで、本療法が適切と判断される症例についてのみ実施すること。また、本剤による治療開始に先立ち、患者又はその家族に有効性及び危険性を十分に説明し、同意を得てから投与すること。
2. 骨髄抑制があらわれることがあるので、頻回に血液検査を行うなど、患者の状態を十分に観察すること。また、「禁忌」、「慎重投与」及び「重要な基本的注意」の項を参照し、適応患者の選択を慎重に行うこと。
なお、本剤の使用にあたっては、添付文書を熟読すること。
禁忌
(次の患者には投与しないこと)
1. 高度な骨髄抑制のある患者
〔骨髄抑制を悪化させる可能性がある。〕
2. 本剤の成分に対し過敏症の既往歴のある患者
3. 妊婦又は妊娠している可能性のある婦人
〔「妊婦、産婦、授乳婦等への投与」の項参照〕
効能又は効果
効能又は効果/用法及び用量
手術不能又は再発乳癌
効能又は効果に関連する使用上の注意
1. 本剤の術前・術後補助化学療法における有効性及び安全性は確立していない。
2. 本剤の投与を行う場合には、アントラサイクリン系抗悪性腫瘍剤及びタキサン系抗悪性腫瘍剤を含む化学療法を施行後の増悪若しくは再発例を対象とすること。
用法及び用量
通常、成人には、エリブリンメシル酸塩として、1日1回1.4mg/m2(体表面積)を2~5分間かけて、週1回、静脈内投与する。これを2週連続で行い、3週目は休薬する。これを1サイクルとして、投与を繰り返す。なお、患者の状態により適宜減量する。
用法及び用量に関連する使用上の注意
1. 他の抗悪性腫瘍剤との併用について、有効性及び安全性は確立していない。
2. 本剤の投与にあたっては、以下の基準を参考に必要に応じて、投与を延期、減量又は休薬すること。
〈各サイクル1週目〉
投与開始基準
下記の基準を満たさない場合、投与を延期する。
・好中球数:1,000/mm3以上
・血小板数:75,000/mm3以上
・非血液毒性:Grade2注1)以下
減量基準
前サイクルにおいて以下の副作用等が発現した場合、減量した上で投与する注2)。
・7日間を超えて継続する好中球数減少(500/mm3未満)
・発熱又は感染を伴う好中球数減少(1,000/mm3未満)
・血小板数減少(25,000/mm3未満)
・輸血を要する血小板数減少(50,000/mm3未満)
・Grade3注1)以上の非血液毒性
・副作用等により、2週目に休薬した場合
〈各サイクル2週目〉
投与開始基準
下記の基準を満たさない場合、投与を延期する。
・好中球数:1,000/mm3以上
・血小板数:75,000/mm3以上
・非血液毒性:Grade2注1)以下
投与再開基準
投与延期後1週間以内に上記の投与開始基準を満たした場合、減量して投与する注2)。
休薬基準
投与延期後1週間以内に上記の投与開始基準を満たさない場合は、休薬する。
注1)Common Terminology Criteria for Adverse Events(CTCAE)v3.0に基づく。
注2)減量を行う際、次の用量を参考にすること。
減量前の投与量:1.4mg/m2 → 減量後の投与量:1.1mg/m2
減量前の投与量:1.1mg/m2 → 減量後の投与量:0.7mg/m2
減量前の投与量:0.7mg/m2 → 減量後の投与量:投与中止を考慮
3. 肝機能障害を有する患者に投与する場合は、減量を考慮すること。〔「慎重投与」及び「薬物動態」の項参照〕
4. 本剤投与時、希釈する場合は日本薬局方生理食塩液を使用すること。
使用上の注意
慎重投与
(次の患者には慎重に投与すること)
1. 骨髄抑制のある患者
〔「重要な基本的注意」の項参照〕
2. 肝機能障害のある患者
〔肝機能障害患者では、本剤のAUCが増加し、好中球減少の発現頻度が高くなる傾向がある。「薬物動態」の項参照〕
3. 高齢者
〔「高齢者への投与」の項参照〕
重要な基本的注意
1. 骨髄抑制があらわれることがあるので、頻回に血液検査を行うなど、患者の状態を十分に観察し、感染症の発現に注意すること。異常が認められた場合には、減量や休薬等を行い、必要に応じて、G‐CSF製剤や抗生剤の投与等の適切な処置を行うこと。Grade3以上の白血球及び好中球減少の最低値は、ともに投与開始14日後(中央値)にあらわれ、最低値発現日からともに7日後(中央値)に回復した。〔「重大な副作用」の項参照〕
2. 動物実験(ラット、イヌ)において精巣毒性が認められているので、生殖可能な年齢の患者に投与する必要がある場合には、性腺に対する影響を考慮すること。
相互作用
併用注意
(併用に注意すること)
薬剤名等
抗悪性腫瘍剤
放射線照射
臨床症状・措置方法
併用により、骨髄抑制が増強するおそれがある。併用する場合には、患者の状態を十分に観察し、必要に応じて減量又は休薬期間の延長を行うこと。
機序・危険因子
ともに骨髄抑制作用を有し、骨髄抑制が増強するおそれがある。
副作用
副作用等発現状況の概要
〈国内臨床試験成績〉
国内第II相試験において、安全性解析対象症例81例中全例で副作用が報告されている。(承認時)
主な副作用は、好中球減少(98.8%)、白血球減少(98.8%)、脱毛症(58.0%)、リンパ球減少(54.3%)、疲労(44.4%)、食欲減退(43.2%)、悪心(42.0%)、口内炎(38.3%)、味覚異常(33.3%)、ヘモグロビン減少(32.1%)、AST(GOT)上昇(29.6%)、ALT(GPT)上昇(27.2%)、CK(CPK)上昇(25.9%)、発熱(24.7%)、末梢神経障害(24.7%)、γ‐GTP上昇(19.8%)、嘔吐(14.8%)、頭痛(14.8%)、発熱性好中球減少(13.6%)、下痢(13.6%)、LDH上昇(12.3%)、Al‐P上昇(12.3%)、血小板減少(11.1%)、けん怠感(11.1%)、発疹(11.1%)である。
〈外国臨床試験成績〉
外国第II相及び第III相試験において、安全性解析対象症例827例中、790例(95.5%)の副作用が報告されている。(承認時)
主な副作用は、好中球減少(56.0%)、脱毛症(49.7%)、悪心(35.1%)、末梢神経障害(32.0%)、疲労(29.3%)、無力症(25.9%)、白血球減少(22.9%)、貧血(20.3%)、食欲減退(18.6%)、発熱(16.6%)、便秘(16.3%)、下痢(15.0%)、嘔吐(14.5%)、頭痛(11.4%)である。
重大な副作用
1. 骨髄抑制注1)
好中球減少(98.8%)、白血球減少(98.8%)、リンパ球減少(54.3%)、ヘモグロビン減少(32.1%)、発熱性好中球減少(13.6%)、血小板減少(11.1%)、貧血(7.4%)、赤血球減少(6.2%)、汎血球減少(頻度不明注2))等の骨髄抑制があらわれることがあるので、頻回に血液検査を行うなど、患者の状態を十分に観察し、異常が認められた場合には、減量や休薬等の適切な処置を行うこと。
2. 感染症
敗血症(頻度不明注2))、肺炎(頻度不明注2))等の感染症があらわれることがあるので、観察を十分に行い、異常が認められた場合には、減量や休薬等の適切な処置を行うこと。
3. 末梢神経障害(末梢性ニューロパチー)注1)
末梢神経障害(24.7%)があらわれることがあるので、観察を十分に行い、しびれ等の症状が認められた場合には、減量や休薬等の適切な処置を行うこと。
4. 肝機能障害注1)
肝機能障害(6.2%)があらわれることがあるので、肝機能検査を行うなど観察を十分に行い、異常が認められた場合には、減量や休薬等の適切な処置を行うこと。
5. 間質性肺炎注1)
間質性肺炎(1.2%)があらわれることがあるので、胸部X線検査等を行うなど観察を十分に行い、異常が認められた場合には、投与を中止するなど適切な処置を行うこと。
重大な副作用の注意
注1)国内臨床試験における副作用発現頻度に基づいて、発現率を記載した。
注2)外国臨床試験でのみ発現した副作用は頻度不明とした。
その他の副作用
1. 血液注1)
5%未満 
血小板増加
2. **消化器注1)
30%以上 
悪心(42.0%)、口内炎(38.3%)
3. 消化器注1)
5~30%未満 
嘔吐、便秘、下痢、腹痛
4. 消化器注1)
5%未満 
口唇炎、口内乾燥、口の感覚鈍麻、流涎過多、歯痛、歯肉痛、歯周炎、舌炎、舌苔、嚥下障害、腹部不快感、消化不良、胃腸粘膜障害、胃炎、裂肛、肛門周囲痛
5. **消化器
頻度不明注2) 
膵炎、粘膜の炎症
6. **全身症状注1)
30%以上 
疲労(44.4%)
7. 全身症状注1)
5~30%未満 
発熱、けん怠感、浮腫
8. 全身症状注1)
5%未満 
無力症、疼痛
9. **精神神経系注1)
30%以上 
味覚異常(33.3%)
10. 精神神経系注1)
5~30%未満 
頭痛、めまい、感覚鈍麻
11. 精神神経系注1)
5%未満 
同名性半盲、傾眠、不安
12. **代謝注1)
30%以上 
食欲減退(43.2%)
13. 代謝注1)
5~30%未満 
血中アルブミンの低下、耐糖能障害
14. 代謝注1)
5%未満 
血中ナトリウム、カリウム、クロール、カルシウム、リン、総蛋白、血糖の低下、血中リン、総コレステロールの上昇
15. 筋骨格系注1)
5~30%未満 
筋肉痛、関節痛
16. 筋骨格系注1)
5%未満 
頸部痛、背部痛、鼡径部痛、四肢痛、筋固縮、筋痙縮、筋力低下、関節炎
17. **筋骨格系
頻度不明注2) 
骨痛
18. 呼吸器注1)
5~30%未満 
咳嗽
19. 呼吸器注1)
5%未満 
呼吸困難、鼻出血、鼻漏、口腔咽頭不快感、口腔咽頭痛、上気道炎、胸膜炎、放射線性肺臓炎
20. **皮膚注1)
30%以上 
脱毛症(58.0%)
21. 皮膚注1)
5~30%未満 
発疹
22. 皮膚注1)
5%未満 
湿疹、蕁麻疹、そう痒症、光線過敏性反応
23. 肝臓注1)
5~30%未満 
AST(GOT)、ALT(GPT)、Al‐P、γ‐GTP、LDHの上昇
24. 肝臓注1)
5%未満 
総ビリルビンの上昇、脂肪肝
25. 循環器注1)
5%未満 
動悸、血圧上昇
26. 泌尿器注1)
5~30%未満 
蛋白尿、尿潜血
27. 泌尿器注1)
5%未満 
尿意切迫、BUN、血中クレアチニンの上昇
28. **泌尿器
頻度不明注2) 
尿路感染
29. 感覚器注1)
5%未満 
結膜炎、眼の異常感、複視、眼脂、眼痛、眼乾燥、流涙増加、耳漏、耳鳴
30. その他注1)
5~30%未満 
CK(CPK)、CRPの上昇、体重減少
31. その他注1)
5%未満 
注射部位反応(そう痒感等)、胸痛、口渇、過敏症、膣分泌物、血管炎、出血、ほてり、体重増加
その他の副作用の注意
注1)国内臨床試験における副作用発現頻度に基づいて、発現率を記載した。
注2)自発報告もしくは外国臨床試験で認められた副作用は頻度不明とした。
高齢者への投与
一般に高齢者では生理機能が低下していることが多く、骨髄抑制や消化器症状等の副作用があらわれやすいので、患者の状態を十分に観察し、慎重に投与すること。
妊婦、産婦、授乳婦等への投与
1. 妊婦又は妊娠している可能性のある婦人には投与しないこと。
〔動物実験(ラット)で胚致死作用及び催奇形作用が報告されている。〕
2. 授乳中の婦人に投与する場合には、授乳を中止させること。
〔安全性が確立していない。〕
小児等への投与
低出生体重児、新生児、乳児、幼児又は小児に対する安全性は確立していない(使用経験がない)。
過量投与
本剤の過量投与に対する解毒剤は知られていない。過量投与が行われた場合には、観察を十分に行い、異常が認められた場合には、対症療法等の適切な処置を行うこと。
適用上の注意
1. 調製時
(1)
本剤を他の医薬品と混注しないこと。
(2)
**本剤を5%ブドウ糖注射液で希釈した場合、反応生成物が検出されるため、希釈する場合は日本薬局方生理食塩液を使用すること。また、0.01mg/mL未満の濃度に希釈しないこと。
(3)
調製時には手袋、ゴーグル及び保護衣の着用が望ましい。本剤が皮膚に付着した場合には、直ちに石鹸及び多量の流水で洗い流すこと。また、粘膜に付着した場合には、直ちに多量の流水で洗い流すこと。
2. 投与時
本剤をシリンジに入れ、室温で保存した場合は6時間以内、冷蔵で保存した場合は24時間以内に投与すること。
その他の注意
前治療歴を有する患者において、本剤の投与後に骨髄異形成症候群(MDS)が発生したとの報告がある。

外文说明

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 Halaven

Generic Name: eribulin mesylate
      Dosage Form: injection

 

INDICATIONS AND USAGE

1.1 Metastatic Breast Cancer

Halaven is indicated for the treatment of patients with metastatic breast cancer who have previously received at least two chemotherapeutic regimens for the treatment of metastatic disease.  Prior therapy should have included an anthracycline and a taxane in either the adjuvant or metastatic setting [see Clinical Studies (14.1)].

1.2 Liposarcoma

Halaven is indicated for the treatment of patients with unresectable or metastatic liposarcoma who have received a prior anthracycline-containing regimen [see Clinical Studies (14.2)].


DOSAGE AND ADMINISTRATION

2.1 Recommended Dose

The recommended dose of Halaven is 1.4 mg/m2administered intravenously over 2 to 5 minutes on Days 1 and 8 of a 21-day cycle.

The recommended dose of Halaven in patients with mild hepatic impairment (Child-Pugh A) is 1.1 mg/m2administered intravenously over 2 to 5 minutes on Days 1 and 8 of a 21-day cycle [see Use in Specific Populations (8.6)].

The recommended dose of Halaven in patients with moderate hepatic impairment (Child-Pugh B) is 0.7 mg/m2administered intravenously over 2 to 5 minutes on Days 1 and 8 of a 21-day cycle [see Use in Specific Populations (8.6)].

The recommended dose of Halaven in patients with moderate or severe renal impairment (creatinine clearance (CLcr) 15-49 mL/min) is 1.1 mg/m2 administered intravenously over 2 to 5 minutes on Days 1 and 8 of a 21-day cycle [see Use in Specific Populations (8.7)].

2.2 Dose Modification

Assess for peripheral neuropathy and obtain complete blood cell counts prior to each dose.

Recommended dose delays

·         Do not administer Halaven on Day 1 or Day 8 for any of the following:
- ANC < 1,000/mm3
- Platelets < 75,000/mm3
- Grade 3 or 4 non-hematological toxicities.

·         The Day 8 dose may be delayed for a maximum of 1 week.
- If toxicities do not resolve or improve to ≤ Grade 2 severity by Day 15, omit the dose.
- If toxicities resolve or improve to ≤ Grade 2 severity by Day 15, administer Halaven at a reduced dose and initiate the next cycle no sooner than 2 weeks later.

Recommended dose reductions

·         If a dose has been delayed for toxicity and toxicities have recovered to Grade 2 severity or less, resume Halaven at a reduced dose as set out in Table 1.

·         Do not re-escalate Halaven dose after it has been reduced.

Table 1: Recommended Dose Reductions

Event Description

Recommended Halaven
Dose

Permanently reduce the 1.4 mg/m2 Halaven dose for any of the
following:

1.1 mg/m2

   ANC <500/mm3 for >7 days

   ANC <1,000 /mm3 with fever or infection

   Platelets <25,000/mm3

   Platelets <50,000/mm3 requiring transfusion

   Non-hematologic Grade 3 or 4 toxicities

   Omission or delay of Day 8 Halaven dose in previous cycle for toxicity

Occurrence of any event requiring permanent dose reduction while receiving 1.1 mg/m2

0.7 mg/m2

Occurrence of any event requiring permanent dose reduction while receiving 0.7 mg/m2

Discontinue Halaven

ANC = absolute neutrophil count.
Toxicities graded in accordance with National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events
(CTCAE) version 3.0.

2.3 Instructions for Preparation and Administration

Aseptically withdraw the required amount of Halaven from the single-use vial and administer undiluted or diluted in 100 mL of 0.9% Sodium Chloride Injection, USP.

Do not dilute in or administer through an intravenous line containing solutions with dextrose. Do not administer in the same intravenous line concurrent with the other medicinal products.

Store undiluted Halaven in the syringe for up to 4 hours at room temperature or for up to 24 hours under refrigeration (40°F or 4°C). Store diluted solutions of Halaven for up to 4 hours at room temperature or up to 24 hours under refrigeration.

Discard unused portions of the vial.

DOSAGE FORMS AND STRENGTHS

Injection:  1 mg/2 mL (0.5 mg/mL). 

CONTRAINDICATIONS

None.

WARNINGS AND PRECAUTIONS

5.1 Neutropenia

In Study 1, severe neutropenia (ANC < 500/mm3) lasting more than one week occurred in 12% (62/503) of patients with metastatic breast cancer, leading to discontinuation in <1% of patients.  Febrile neutropenia (fever ≥38.5°C with Grade 3 or 4 neutropenia) occurred in 5% (23/503) of patients; two patients (0.4%) died from complications of febrile neutropenia [see Adverse Reactions (6.1)].

In Study 1, patients with alanine aminotransferase (ALT) or aspartate aminotransferase (AST) > 3 × ULN (upper limit of normal) experienced a higher incidence of Grade 4 neutropenia and febrile neutropenia than patients with normal aminotransferase levels. Patients with bilirubin > 1.5 × ULN also had a higher incidence of Grade 4 neutropenia and febrile neutropenia.

In Study 2, severe neutropenia (ANC < 500/mm3) lasting more than one week occurred in 12% (26/222) of patients with liposarcoma or leiomyosarcoma. Febrile neutropenia occurred in 0.9% of patients treated with Halaven and fatal neutropenic sepsis in 0.9% [see Adverse Reactions (6.1)].

Monitor complete blood counts prior to each dose; increase the frequency of monitoring in patients who develop Grade 3 or 4 cytopenias. Delay administration of Halaven and reduce subsequent doses in patients who experience febrile neutropenia or Grade 4 neutropenia lasting longer than 7 days [seeDosage and Administration (2.2)]. Clinical studies of Halaven did not include patients with baseline neutrophil counts below 1,500/mm3.

5.2 Peripheral Neuropathy

In Study 1, Grade 3 peripheral neuropathy occurred in 8% (40/503) of patients, and Grade 4 in 0.4% (2/503) of patients with metastatic breast cancer (MBC). Peripheral neuropathy was the most common toxicity leading to discontinuation of Halaven (5% of patients; 24/503) in Study 

1.  Neuropathy lasting more than one year occurred in 5% (26/503) of patients. Twenty-two percent (109/503) of patients developed a new or worsening neuropathy that had not recovered within a median follow-up duration of 269 days (range 25-662 days).

In Study 2, Grade 3 peripheral neuropathy occurred in 3.1% (7/223) of Halaven-treated patients. Peripheral neuropathy led to discontinuation of Halaven in 0.9% of patients. The median time to first occurrence of peripheral neuropathy of any severity was 5 months (range: 3.5 months to 9 months).  Neuropathy lasting more than 60 days occurred in 58% (38/65) of patients.  Sixty three percent (41/65) had not recovered within a median follow-up duration of 6.4 months (range: 27 days to 29 months).

Monitor patients closely for signs of peripheral motor and sensory neuropathy. Withhold Halaven in patients who experience Grade 3 or 4 peripheral neuropathy, until resolution to Grade 2 or less [see Dosage and Administration (2.2)].

5.3 Embryo-Fetal Toxicity

Based on findings from an animal reproduction study and its mechanism of action, Halaven can cause fetal harm when administered to a pregnant woman.  There are no adequate and well-controlled studies of Halaven in pregnant women. In animal reproduction studies, eribulin mesylate caused embryo-fetal toxicity when administered to pregnant rats during organogenesis at doses below the recommended human dose. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment with Halaven and for at least 2 weeks following the final dose.  Advise males with female partners of reproductive potential to use effective contraception during treatment with Halaven and for 3.5 months following the final dose [seeUse in Specific Populations (8.1)].

5.4 QT Prolongation

In an uncontrolled open-label ECG study in 26 patients, QT prolongation was observed on Day 8, independent of eribulin concentration, with no QT prolongation observed on Day 1. ECG monitoring is recommended if therapy is initiated in patients with congestive heart failure, bradyarrhythmias, drugs known to prolong the QT interval, including Class Ia and III antiarrhythmics, and electrolyte abnormalities. Correct hypokalemia or hypomagnesemia prior to initiating Halaven and monitor these electrolytes periodically during therapy. Avoid Halaven in patients with congenital long QT syndrome.

ADVERSE REACTIONS

6.1 Clinical Trials Experience

Because clinical trials are conducted under widely varying conditions, the adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in other clinical trials and may not reflect the rates observed in clinical practice.

The following adverse reactions are discussed in detail in other sections of the labeling:

·         Neutropenia [see Warnings and Precautions (5.1)]

·         Peripheral neuropathy [see Warnings and Precautions (5.2)]

·         QT prolongation [see Warnings and Precautions (5.4)]

In clinical trials, Halaven has been administered to 1963 patients including 467 patients exposed to Halaven for 6 months or longer. The majority of the 1963 patients were women (92%) with a median age of 55 years (range: 17 to 85 years). The racial and ethnic distribution was White (72%), Black (4%), Asian (9%), and other (3%).

Metastatic Breast Cancer

The most common adverse reactions (≥25%) reported in patients receiving Halaven were neutropenia, anemia, asthenia/fatigue, alopecia, peripheral neuropathy, nausea, and constipation. The most common serious adverse reactions reported in patients receiving Halaven were febrile neutropenia (4%) and neutropenia (2%). The most common adverse reaction resulting in discontinuation of Halaven was peripheral neuropathy (5%).

The adverse reactions described in Table 2 were identified in 750 patients treated in Study 1 [seeClinical Studies (14.1)]. In Study 1, patients were randomized (2:1) to receive either Halaven (1.4 mg/m2 on Days 1 and 8 of a 21-day cycle) or single agent treatment chosen by their physician (control group). A total of 503 patients received Halaven and 247 patients in the control group received therapy consisting of chemotherapy [total 97% (anthracyclines 10%, capecitabine 18%, gemcitabine 19%, taxanes 15%, vinorelbine 25%, other chemotherapies 10%)] or hormonal therapy (3%). The median duration of exposure was 118 days for patients receiving Halaven and 63 days for patients receiving control therapy. Table 2 reports the most common adverse reactions occurring in at least 10% of patients in either group.

Table 2: Adverse Reactionsa with a Per-Patient Incidence of at Least 10% in Study 1



Adverse Reactions

Halaven
n=503

Control Group
n=247

All Grades

≥ Grade 3

All Grades

≥ Grade 3

Blood and lymphatic system disordersb

  Neutropenia

82%

57%

53%

23%

  Anemia

58%

2%

55%

4%

Nervous system disorders

  Peripheral neuropathyc

35%

8%

16%

2%

  Headache

19%

<1%

12%

<1%

General disorders

  Asthenia/Fatigue

54%

10%

40%

11%

  Pyrexia

21%

<1%

13%

<1%

  Mucosal inflammation

9%

1%

10%

2%

Gastrointestinal disorders

  Nausea

35%

1%

28%

3%

  Constipation

25%

1%

21%

1%

  Vomiting

18%

1%

18%

1%

  Diarrhea

18%

0

18%

0

Musculoskeletal and connective tissue disorders

  Arthralgia/Myalgia

22%

<1%

12%

1%

  Back pain

16%

1%

7%

2%

  Bone pain

12%

2%

9%

2%

  Pain in extremity

11%

1%

10%

1%

Metabolism and nutrition disorders

  Decreased weight

21%

1%

14%

<1%

  Anorexia

20%

1%

13%

1%

Respiratory, thoracic, and mediastinal disorders

  Dyspnea

16%

4%

13%

4%

  Cough

14%

0

9%

0

Skin and subcutaneous tissue disorders

  Alopecia

45%

NAd

10%

NAd

Infections

  Urinary Tract Infection

10%

1%

5%

0

a adverse reactions were graded per National Cancer Institute Criteria for Adverse Events version 4.0. 
b based upon laboratory data.
c includes peripheral neuropathy, peripheral sensorimotor neuropathy, peripheral motor neuropathy, polyneuropathy, peripheral sensory neuropathy, and paraesthesia.
d not applicable; (grading system does not specify > Grade 2 for alopecia).

Cytopenias: Grade 3 neutropenia occurred in 28% (143/503) of patients who received Halaven in Study 1, and 29% (144/503) of patients experienced Grade 4 neutropenia. Febrile neutropenia occurred in 5% (23/503) of patients; two patients (0.4%) died from complications of febrile neutropenia. Dose reduction due to neutropenia was required in 12% (62/503) of patients and discontinuation was required in <1% of patients.  The mean time to nadir was 13 days and the mean time to recovery from severe neutropenia (<500/mm3) was 8 days.  Grade 3 or greater thrombocytopenia occurred in 1% (7/503) of patients.  G-CSF (granulocyte colony-stimulating factor) or GM-CSF (granulocyte–macrophage colony-stimulating factor) was used in 19% of patients who received Halaven.  

Peripheral Neuropathy:  In Study 1, 17% of enrolled patients had Grade 1 peripheral neuropathy and 3% of patients had Grade 2 peripheral neuropathy at baseline. Dose reduction due to peripheral neuropathy was required by 3% (14/503) of patients who received Halaven. Four percent (20/503) of patients experienced peripheral motor neuropathy of any grade and 2% (8/503) of patients developed Grade 3 peripheral motor neuropathy.

Liver Function Test Abnormalities:  Among patients with Grade 0 or 1 ALT levels at baseline, 18% of Halaven-treated patients experienced Grade 2 or greater ALT elevation. One Halaven-treated patient without documented liver metastases had concomitant Grade 2 elevations in bilirubin and ALT; these abnormalities resolved and did not recur with re-exposure to Halaven.

Less Common Adverse Reactions:  The following additional adverse reactions were reported in ≥5% to <10% of the Halaven-treated group:

·         Eye Disorders:  increased lacrimation

·         Gastrointestinal Disorders:  dyspepsia, abdominal pain, stomatitis, dry mouth

·         General Disorders and Administration Site Conditions:  peripheral edema

·         Infections and Infestations:  upper respiratory tract infection

·         Metabolism and Nutrition Disorders:  hypokalemia

·         Musculoskeletal and Connective Tissue Disorders:  muscle spasms, muscular weakness

·         Nervous System Disorders:  dysgeusia, dizziness

·         Psychiatric Disorders:  insomnia, depression

·         Skin and Subcutaneous Tissue Disorders:  rash

Liposarcoma

The safety of Halaven was evaluated in Study 2, an open-label, randomized, multicenter, active-controlled trial, in which patients were randomized (1:1) to receive either Halaven 1.4 mg/m2 on Days 1 and 8 of a 21-day cycle or dacarbazine at doses of 850 mg/m2 (20%), 1000 mg/m2 (64%), or 1200 mg/m2 (16%) every 3 weeks.  A total of  223 patients received Halaven and 221 patients received dacarbazine. Patients were required to have received at least two prior systemic chemotherapy regimens.  The trial excluded patients with pre-existing ≥ Grade 3 peripheral neuropathy, known central nervous system metastasis, elevated serum bilirubin or significant chronic liver disease, history of myocardial infarction within 6 months, history of New York Heart Association Class II or IV heart failure, or cardiac arrhythmia requiring treatment. The median age of the safety population in Study 2 was 56 years (range: 24 to 83 years); 67% female; 73% White, 3% Black or African American, 8% Asian/Pacific Islander, and 15% unknown; 99% received prior anthracycline-containing regimen; and 99% received ≥ 2 prior regimens. The median duration of exposure was 2.3 months (range: 21 days to 26 months) for patients receiving Halaven [see Clinical Studies (14.2)].

The most common adverse reactions (≥25%) reported in patients receiving Halaven were fatigue, nausea, alopecia, constipation, peripheral neuropathy, abdominal pain, and pyrexia.  The most common (≥5%) Grade 3-4 laboratory abnormalities reported in patients receiving Halaven were neutropenia, hypokalemia, and hypocalcemia. The most common serious adverse reactions reported in patients receiving Halaven were neutropenia (4.9%) and pyrexia (4.5%). Permanent discontinuation of Halaven for adverse reactions occurred in 8% of patients. The most common adverse reactions resulting in discontinuation of Halaven were fatigue and thrombocytopenia (0.9% each).  Twenty-six percent of patients required at least one dose reduction. The most frequent adverse reactions that led to dose reduction were neutropenia (18%) and peripheral neuropathy (4.0%).

Table 3 summarizes the incidence of adverse reactions occurring in at least 10% of patients in the Halaven-treated arm in Study 2.

Table 3: Adverse Reactionsa Occurring in ≥10% (all Grades) of Patients Treated on the Halaven arm and at a Higher Incidence than in the Dacarbazine Arm (Between Arm Difference of ≥5% for All Grades or ≥2% for Grades 3 and 4) (Study 2)b

 
Adverse Reaction

Halaven
n=223

Dacarbazine
n=221

All Grades

Grades 3-4

All Grades

Grades 3-4

Nervous system disorders

Peripheral Neuropathyc

29%

3.1%

8%

0.5%

Headache

18%

0%

10%

0%

General disorders

Pyrexia

28%

0.9%

14%

0.5%

Gastrointestinal disorders 

Constipation

32%

0.9%

26%

0.5%

Abdominal paind

29%

1.8%

23%

4.1%

Stomatitis

14%

0.9%

5%

0.5%

Skin and subcutaneous tissue disorders 

Alopecia

35%

NAe

2.7%

NAe

Infections 

Urinary tract infection

11%

2.2%

5%

0.5%

a Adverse reactions were graded per National Cancer Institute Criteria for Adverse Events version 4.03 (NCI CTCAE v4.03).
b Safety data from one study site enrolling six patients were excluded.
c Includes peripheral neuropathy, peripheral sensorimotor neuropathy, peripheral motor neuropathy, polyneuropathy, peripheral sensory neuropathy, and paraesthesia.
d Includes abdominal pain, upper abdominal pain, lower abdominal pain, abdominal discomfort.
e Not applicable; (grading system does not specify > Grade 2 for alopecia).

Other clinically important adverse reactions occurring in ≥10% of the Halaven-treated patients were:

·         Gastrointestinal Disorders: nausea (41%); vomiting (19%), diarrhea (17%)

·         General Disorders:  asthenia/fatigue (62%); peripheral edema (12%)

·         Metabolism and Nutrition Disorders: decreased appetite (19%)

·         Musculoskeletal and Connective Tissue Disorders:  arthralgia/myalgia (16%); back pain (16%)

·         Respiratory Disorders: cough (18%)

Less Common Adverse Reactions: The following additional clinically important adverse reactions were reported in ≥5% to <10% of the Halaven-treated group:

·         Blood and Lymphatic System Disorders: thrombocytopenia

·         Eye Disorders: increased lacrimation

·         Gastrointestinal Disorders: dyspepsia

·         Metabolism and Nutrition Disorders: hyperglycemia

·         Musculoskeletal and Connective Tissue Disorders: muscle spasms, musculoskeletal pain

·         Nervous System Disorders: dizziness, dysgeusia

·         Psychiatric Disorders: insomnia, anxiety

·         Respiratory, Thoracic, and Mediastinal Disorders: oropharyngeal pain

·         Vascular Disorders: hypotension

Table 4: Laboratory Abnormalities Occurring in ≥10% (all Grades) of Patients Treated on the Halaven arm and at a Higher Incidence than in the Dacarbazine Arm (Between Arm Difference of ≥5% for All Grades or ≥2% for Grades 3 and 4)a (Study 2)†

Laboratory Abnormality

Halaven

Dacarbazine

All Grades

Grades 3 - 4

All Grades

Grades 3 – 4

Hematology

Anemia

70%

4.1%

52%

6%

Neutropenia

63%

32%

30%

8.9%

Chemistry

Increased alanine aminotransferase (ALT)

43%

2.3%

28%

2.3%

Increased aspartate aminotransferase (AST)

36%

0.9%

16%

0.5%

Hypokalemia

30%

5.4%

14%

2.8%

Hypocalcemia

28%

5%

18%

1.4%

Hypophosphatemia

20%

3.2%

11%

1.4%

a Each test incidence is based on the number of patients who had both baseline and at least one on-study measurement and at least 1 grade increase from baseline.Halaven group (range 221-222) and dacarbazine group (range 214-215)
† Laboratory results were graded per NCI CTCAE v4.03.

6.2 Postmarketing Experience

The following adverse drug reactions have been identified during post-approval of Halaven.  Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

·         Blood and Lymphatic System Disorders:  lymphopenia

·         Gastrointestinal Disorders:  pancreatitis

·         Hepatobiliary Disorders:  hepatotoxicity

·         Immune System Disorders:  drug hypersensitivity

·         Infections and Infestations:  pneumonia, sepsis/neutropenic sepsis

·         Metabolism and Nutrition Disorders:  hypomagnesemia, dehydration

·         Respiratory, thoracic and mediastinal disorders:  interstitial lung disease

·         Skin and Subcutaneous Tissue Disorders:  pruritus, Stevens-Johnson syndrome, toxic epidermal necrolysis

DRUG INTERACTIONS

7.1 Effects of Other Drugs on Halaven

No drug-drug interactions are expected with CYP3A4 inhibitors, CYP3A4 inducers or P-glycoprotein (P-gp) inhibitors. Clinically meaningful differences in exposure (AUC) were not observed in patients with advanced solid tumors when Halaven was administered with or without ketoconazole (a strong inhibitor of CYP3A4 and a P-gp inhibitor) and when Halaven was administered with or without rifampin (a CYP3A4 inducer) [see Clinical Pharmacology (12.3)].   

7.2 Effects of Halaven on Other Drugs

Eribulin does not inhibit CYP1A2, CYP2C9, CYP2C19, CYP2D6, CYP2E1 or CYP3A4 enzymes or induce CYP1A2, CYP2C9, CYP2C19 or CYP3A4 enzymes at relevant clinical concentrations. Eribulin is not expected to alter the plasma concentrations of drugs that are substrates of these enzymes [see Clinical Pharmacology (12.3)].

USE IN SPECIFIC POPULATIONS

8.1 Pregnancy

Risk Summary

Based on findings from an animal reproduction study and its mechanism of action, Halaven can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology (12.1)]. There are no available data on the use of Halaven during pregnancy. In an animal reproduction study, eribulin mesylate caused embryo-fetal toxicity when administered to pregnant rats during organogenesis at doses below the recommended human dose [see Data].  Advise pregnant women of the potential risk to a fetus.

The estimated background risks of major birth defects and miscarriage for the indicated populations are unknown. 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 developmental toxicity study, pregnant rats received intravenous infusion of eribulin mesylate during organogenesis (Gestation Days 8, 10, and 12) at doses approximately 0.04, 0.13, 0.43 and 0.64 times the recommended human dose, based on body surface area. Increased abortion and severe fetal external or soft tissue malformations, including the absence of a lower jaw and tongue, or stomach and spleen, were observed at doses 0.64 times the recommended human dose of 1.4 mg/m2based on body surface area. Increased embryo-fetal death/resorption, reduced fetal weights, and minor skeletal anomalies consistent with developmental delay were also reported at doses at or above a maternally toxic dose of approximately 0.43 times the recommended human dose.

8.2 Lactation

Risk Summary

There is no information regarding the presence of eribulin mesylate or its metabolites in human milk, the effects on the breastfed infant, or the effects on milk production. No lactation studies in animals were conducted.  Because of the potential for serious adverse reactions in breastfed infants from eribulin mesylate, advise women not to breastfeed during treatment with Halaven and for 2 weeks after the final dose.

8.3 Females and Males of Reproductive Potential

Contraception

Females

Based on findings from an animal reproduction study and its mechanism of action, Halaven can cause fetal harm when administered to a pregnant woman [see Use in Specific Populations (8.1)].  Advise females of reproductive potential to use effective contraception during treatment with Halaven and for at least 2 weeks following the final dose.

Males

Based on its mechanism of action, advise males with female partners of reproductive potential to use effective contraception during treatment with Halaven and for 3.5 months following the final dose.

Infertility 

Males 

Based on animal data, Halaven may result in damage to male reproductive tissues leading to impaired fertility of unknown duration [see Nonclinical Toxicology (13.1)].

8.4 Pediatric Use

The safety and effectiveness of Halaven in pediatric patients below the age of 18 years have not been established.

8.5 Geriatric Use

Study 1 did not include sufficient numbers of subjects with metastatic breast cancer aged 65 years and older to determine whether they respond differently from younger subjects. Of the 827 subjects who received the recommended dose and schedule of Halaven in clinical studies with advanced breast cancer, 15% (121/827) were 65 and older, and 2% (17/827) patients were 75 and older. No overall differences in safety were observed between these subjects and younger subjects.

Clinical studies of Halaven did not include a sufficient number of subjects in Study 2 aged 65 years and older to determine whether they respond differently from younger subjects.

8.6 Hepatic Impairment

Administration of Halaven at a dose of 1.1 mg/m2 to patients with mild hepatic impairment and 0.7 mg/m2 to patients with moderate hepatic impairment resulted in similar exposure to eribulin as a dose of 1.4 mg/m2 to patients with normal hepatic function. Therefore, a lower starting dose of 1.1 mg/m2 is recommended for patients with mild hepatic impairment (Child-Pugh A) and of 0.7 mg/m2 is recommended for patients with moderate hepatic impairment (Child-Pugh B). Halaven was not studied in patients with severe hepatic impairment (Child-Pugh C) [see Dosage and Administration (2.1), Clinical Pharmacology (12.3)]. 

8.7 Renal Impairment

For patients with moderate or severe renal impairment (CLcr 15-49 mL/min), reduce the starting dose to 1.1 mg/m2 [see Dosage and Administration (2.1), Clinical Pharmacology (12.3)].

OVERDOSAGE 

Overdosage of Halaven has been reported at approximately 4 times the recommended dose, which resulted in Grade 3 neutropenia lasting seven days and a Grade 3 hypersensitivity reaction lasting one day.

There is no known antidote for Halaven overdose.

DESCRIPTION

Halaven contains eribulin mesylate, a microtubule dynamics inhibitor. Eribulin mesylate is a synthetic analogue of halichondrin B, a product isolated from the marine sponge Halichondria okadai. The chemical name for eribulin mesylate is 11,15:18,21:24,28-Triepoxy-7,9-ethano-12,15-methano-9H,15H-furo[3,2-i]furo[2',3':5,6]pyrano[4,3-b][1,4]dioxacyclopentacosin-5(4H)-one, 2-[(2S)-3-amino-2-hydroxypropyl]hexacosahydro-3-methoxy-26-methyl-20,27-bis(methylene)-, (2R,3R,3aS,7R,8aS,9S,10aR,11S,12R,13aR,13bS,15S,18S,21S,24S,26R,28R,29aS)-, methanesulfonate (salt). It has a molecular weight of 826.0 (729.9 for free base). The empirical formula is C40H59NO11•CH4O3S. Eribulin mesylate has the following structural formula:

from clipboard


Halaven is a clear, colorless, sterile solution for intravenous administration. Each vial contains 1 mg of eribulin mesylate as a 0.5 mg/mL solution in ethanol: water (5:95).

CLINICAL PHARMACOLOGY

12.1 Mechanism of Action

Eribulin inhibits the growth phase of microtubules without affecting the shortening phase and sequesters tubulin into nonproductive aggregates. Eribulin exerts its effects via a tubulin-based antimitotic mechanism leading to G2/M cell-cycle block, disruption of mitotic spindles, and, ultimately, apoptotic cell death after prolonged mitotic blockage.

In addition, eribulin treatment of human breast cancer cells caused changes in morphology and gene expression as well as decreased migration and invasiveness in vitro. In mouse xenograft models of human breast cancer, eribulin treatment was associated with increased vascular perfusion and permeability in the tumor cores, resulting in reduced tumor hypoxia, and changes in the expression of genes in tumor specimens associated with a change in phenotype.

12.2 Pharmacodynamics

Cardiac Electrophysiology

The effect of Halaven on the QTc interval was assessed in an open-label, uncontrolled, multicenter, single-arm dedicated QT trial. A total of 26 patients with solid tumors received 1.4 mg/m2 of Halaven on Days 1 and 8 of a 21-day cycle. A delayed QTc prolongation was observed on Day 8, with no prolongation observed on Day 1.  The maximum mean QTcF change from baseline (95% upper confidence interval) was 11.4 (19.5) ms.

12.3 Pharmacokinetics

The pharmacokinetics (PK) of eribulin is linear with a mean elimination half-life of approximately 40 hours, a mean volume of distribution of 43 L/m2 to 114 L/m2 and mean clearance of 1.16 L/hr/m2 to 2.42 L/hr/m2 over the dose range of 0.25 mg/m2 to 4.0 mg/m2.  The human plasma protein binding of eribulin at concentrations of 100 ng/mL to 1,000 ng/mL ranges from 49% to 65%. Eribulin exposure after multiple dosing is comparable to that following a single dose. No accumulation of eribulin is observed with weekly administration.

Elimination

Metabolism

Unchanged eribulin was the major circulating species in plasma following administration of 14C-eribulin to patients. Metabolite concentrations represented <0.6% of parent compound, confirming that there are no major human metabolites of eribulin.  Cytochrome P450 3A4 (CYP3A4) negligibly metabolizes eribulin in vitro.

Excretion

Eribulin is eliminated primarily in feces unchanged. After administration of 14C-eribulin to patients, approximately 82% of the dose was eliminated in feces and 9% in urine.  Unchanged eribulin accounted for approximately 88% and 91% of total eribulin in feces and urine, respectively. 

Specific Populations

Age, Sex, and Race/Ethnicity:  Based on a population pharmacokinetic analysis with data collected from 340 patients, sex, race, and age do not have a clinically meaningful effect on the exposure of eribulin.

Hepatic Impairment

In a study evaluating the effect of hepatic impairment on the PK of eribulin, eribulin exposures increased by 1.8-fold in patients with mild hepatic impairment (Child-Pugh A; n=7) and by 2.5-fold in patients with moderate (Child-Pugh B; n=5) hepatic impairment as compared to patients with normal hepatic function (n=6).  Administration of Halaven at a dose of 1.1 mg/m2 to patients with mild hepatic impairment and 0.7 mg/m2 to patients with moderate hepatic impairment resulted in similar exposure to eribulin at a dose of 1.4 mg/m2 to patients with normal hepatic function [see Dosage and Administration (2.1), Use in Specific Populations (8.6)].

Renal Impairment

In a study evaluating the effect of renal impairment on the PK of eribulin, patients with moderate (CLcr 30-49 mL/min; n=7) and severe renal impairment (CLcr 15-29 mL/min; n=6) had 1.5-fold higher eribulin dose-normalized exposures compared to that in patients with normal renal function (CLcr ≥ 80 mL/min; n=6).  There were no clinically meaningful changes in patients with mild renal impairment (CLcr 50-79 mL/min; n=27) [see Dosage and Administration (2.1), Use in Specific Populations (8.7)].

Drug Interaction Studies

Effect of Strong Inhibitors or Inducers of CYP3A4 on Eribulin:  The effect of a strong CYP3A4 inhibitor and a P-gp inhibitor, ketoconazole, on the PK of eribulin was studied in a crossover trial of 12 patients with advanced solid tumors. No clinically relevant PK interaction was observed when Halaven was administered with or without ketoconazole (the geometric mean ratio of the AUC: 0.97; 90% CI: 0.83, 1.12).

The effect of a CYP3A4 inducer, rifampin, on the PK of eribulin was studied in a crossover trial of 14 patients with advanced solid tumors. No clinically relevant PK interaction was observed when Halaven was administered with or without rifampin (the geometric mean ratio of the AUC: 1.10; 90 CI%: 0.91, 1.34).

Effect of Eribulin on CYP Substrates:  Eribulin shows no induction potential for CYP1A, CYP2B6, CYP2C9, CYP2C19, and CYP3A in primary human hepatocytes. Eribulin inhibits CYP3A4 activity in human liver microsomes, but it is unlikely that eribulin will substantially increase the plasma levels of CYP3A4 substrates. No significant inhibition of CYP1A2, CYP2C9, CYP2C19, CYP2D6, or CYP2E1 was detected with eribulin concentrations up to 5 μM in pooled human liver microsomes. In vitro drug interaction studies indicate that eribulin does not inhibit drugs that are substrates of these enzymes and it is unlikely that eribulin will affect plasma levels of drugs that are substrates of CYP enzymes.

Effect of Transporters on Eribulin: In vitro data suggest that eribulin at clinically relevant concentrations is a substrate of P-gp, but is not a substrate of breast cancer resistance protein (BCRP), multidrug resistance proteins (MRP2, MRP4), bile salt extrusion pump (BSEP), organic anion transporting polypeptides (OATP1B1, OATP1B3), organic anion transporters (OAT1, OAT3), organic cation transporters (OCT1, OCT2), or multidrug and toxin extrusion 1 (MATE1).

Effect of Eribulin on Transporters: In vitro data suggest that eribulin at clinically relevant concentrations may inhibit P-gp, but does not inhibit BCRP, OATP1B1, OCT1, OAT1, OAT3, or MATE1.

NONCLINICAL TOXICOLOGY

13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility

Carcinogenicity studies have not been conducted with eribulin mesylate.  Eribulin mesylate was not mutagenic in in vitro bacterial reverse mutation assays (Ames test). Eribulin mesylate was positive in mouse lymphoma mutagenesis assays, and was clastogenic in an in vivo rat bone marrow micronucleus assay.

Fertility studies have not been conducted with eribulin mesylate in humans or animals; however, nonclinical findings in repeat-dose dog and rat toxicology studies suggest that male fertility may be compromised by treatment with eribulin mesylate.  Rats exhibited testicular toxicity (hypocellularity of seminiferous epithelium with hypospermia/aspermia) following dosing with eribulin mesylate at or above 0.43 times the recommended human dose (based on body surface area) given once weekly for 3 weeks, or at or above 0.21 times the recommended human dose (based on body surface area) given once weekly for 3 out of 5 weeks, repeated for 6 cycles. Testicular toxicity was also observed in dogs given 0.64 times the recommended human dose (based on body surface area) weekly for 3 out of 5 weeks, repeated for 6 cycles.

CLINICAL STUDIES

14.1 Metastatic Breast Cancer

Study 1 was an open-label, randomized, multicenter trial of 762 patients with metastatic breast cancer who received at least two chemotherapeutic regimens for the treatment of metastatic disease and experienced disease progression within 6 months of their last chemotherapeutic regimen. Patients were required to receive prior anthracycline- and taxane- based chemotherapy for adjuvant or metastatic disease. Patients were randomized (2:1) to receive Halaven (n=508) or a single agent therapy selected prior to randomization (control arm, n=254). Randomization was stratified by geographic region, HER2/neu status, and prior capecitabine exposure. Halaven was administered at a dose of 1.4 mg/m2 on Days 1 and 8 of a 21-day cycle. Halaven-treated patients received a median of 5 cycles (range: 1 to 23 cycles) of therapy.  Control arm therapy consisted of 97% chemotherapy (26% vinorelbine, 18% gemcitabine, 18% capecitabine, 16% taxane, 9% anthracycline, 10% other chemotherapy), and 3% hormonal therapy. The main efficacy outcome was overall survival.

Patient demographic and baseline characteristics were comparable between the treatment arms. The median age was 55 (range: 27 to 85 years) and 92% were White. Sixty-four percent of patients were enrolled in North America/Western Europe/Australia, 25% in Eastern Europe/Russia, and 11% in Latin America/South Africa.  Ninety-one percent of patients had a baseline ECOG performance status of 0 or 1. Tumor prognostic characteristics, including estrogen receptor status (positive: 67%, negative: 28%), progesterone receptor status (positive: 49%, negative: 39%), HER2/neu receptor status (positive: 16%, negative: 74%), triple negative status (ER-, PR-, HER2/neu-: 19%), presence of visceral disease (82%, including 60% liver and 38% lung) and bone disease (61%), and number of sites of metastases (greater than two: 50%), were also similar in the Halaven and control arms. Patients received a median of four prior chemotherapy regimens in both arms.

In Study 1, a statistically significant improvement in overall survival was observed in patients randomized to the Halaven arm compared to the control arm (see Table 5). An updated, unplanned survival analysis, conducted when 77% of events had been observed (see Figure 1), was consistent with the primary analysis. In patients randomized to Halaven, the objective response rate by the RECIST criteria was 11% (95% CI: 8.6%, 14.3%) and the median response duration was 4.2 months (95% CI: 3.8, 5.0 months).

Table 5: Comparison of Overall Survival in Halaven and Control Arm - Study 1

Overall Survival

Halaven
(n=508)

Control Arm
(n=254)

Primary survival analysis

  Number of deaths

274

148

  Median, months (95% CI)

13.1 (11.8, 14.3)

10.6 (9.3, 12.5)

  Hazard Ratio (95% CI)a

0.81 (0.66, 0.99)

  P valueb

0.041

Updated survival analysis

  Number of deaths

386

203

  Median, months (95% CI)

13.2 (12.1, 14.4)

10.6 (9.2, 12.0)

CI = confidence interval
a Based on Cox proportional hazards model stratified by geographic region, HER2 status, and prior capecitabine therapy.
b Based on a log-rank test stratified by geographic region, HER2 status, and prior capecitabine therapy.

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Figure 1: Updated Overall Survival Analysis for Study 1

14.2 Liposarcoma

The efficacy and safety of Halaven were evaluated in Study 2, an open-label, randomized (1:1), multicenter, active-controlled trial.  Eligible patients were required to have unresectable, locally advanced or metastatic liposarcoma or leiomyosarcoma, at least two prior systemic chemotherapies (one of which must have included an anthracycline), and disease progression within 6 months of the most recent chemotherapy regimen.  Patients were randomized to Halaven 1.4 mg/m2 administered intravenously on Days 1 and 8 of a 21-day cycle or to dacarbazine at a dose of 850 mg/m2, 1000 mg/m2, or 1200 mg/m2 administered intravenously every 21 days (dacarbazine dose was selected by the investigator prior to randomization).  Treatment continued until disease progression or unacceptable toxicity.  Randomization was stratified by histology (liposarcoma or leiomyosarcoma), number of prior therapies (2 vs. > 2), and geographic region (U.S. and Canada vs. Western Europe, Australia, and Israel vs. Eastern Europe, Latin America, and Asia).  The major efficacy outcome measure was overall survival (OS). Additional efficacy outcome measures were progression-free survival (PFS) and confirmed objective response rate (ORR) as assessed by the investigator according to Response Evaluation Criteria in Solid Tumors (RECIST v1.1).  Patients in the dacarbazine arm were not offered Halaven at the time of disease progression.

A total of 446 patients were randomized, 225 to the Halaven arm and 221 to the dacarbazine arm. The median age was 56 years (range: 24 to 83); 33% were male; 73% were White; 44% had ECOG performance status (PS) 0 and 53% had ECOG PS 1; 68% had leiomyosarcoma and 32% had liposarcoma; 39% were enrolled in U.S. and Canada (Region 1) and 46% were enrolled in Western Europe, Australia, and Israel (Region 2); and 47% received more than two prior systemic chemotherapies.  The most common (>40%) prior systemic chemotherapies were doxorubicin (90%), ifosfamide (62%), gemcitabine (59%), trabectedin (50%), and docetaxel (48%).

Of the 143 patients with liposarcoma, the median age was 55 years (range: 32 to 83); 62% were male, 72% were White; 41% had ECOG PS of 0 and 53% had ECOG PS of 1; 35% were enrolled in Region 1 and 51% were enrolled in Region 2; and 44% received more than two prior systemic chemotherapies.  The distribution of subtypes of liposarcoma, based on local histologic assessment, were 45% dedifferentiated, 37% myxoid/round cell, and 18% pleomorphic.

Study 2 demonstrated a statistically significant improvement in OS in patients randomized to Halaven compared with dacarbazine (see Table 6).  There was no significant difference in progression-free survival in the overall population. Treatment effects of Halaven were limited to patients with liposarcoma based on pre-planned, exploratory subgroup analyses of OS and PFS (see Tables 6 and 7 and Figure 2). There was no evidence of efficacy of Halaven in patients with advanced or metastatic leiomyosarcoma in Study 2 (see Table 7).

Table 6: Efficacy Results for the Liposarcoma Stratum and All Patients* in Study 2a

Liposarcoma
Stratum

 All Patients*

Halaven
(n=71)

Dacarbazine
(n=72)

Halaven
(n=225)

Dacarbazine
(n=221)

Overall survival

   Deaths, n (%)

52 (73)

63 (88)

173 (77)

179 (81)

   Median, months
   (95% CI)

15.6
(10.2, 18.6)

8.4
(5.2, 10.1)

13.5
(11.1, 16.5)

11.3
(9.5, 12.6)

   Hazard ratio (HR)
   (95% CI)

0.51
(0.35, 0.75)

0.75
(0.61, 0.94)

   Stratified log-rank p value

N/A†

0.011

Progression-free survival

   Events, n (%)

57 (80)

59 (82)

194 (86)

185 (84)

      Disease progression

53

52

180

170

      Death

4

7

14

15

   Median, months
   (95% CI)

2.9
(2.6, 4.8)

1.7
(1.4, 2.6)

2.6
(2.0, 2.8)

2.6
(1.7, 2.7)

   HR
   (95% CI)

0.52 
(0.35, 0.78)

0.86 
(0.69, 1.06)

Objective response rate

   Objective response rate (%)
   (95% CI)

1.4 
(0, 7.6)

0 
(0, 4.2)

4.0 
(1.8, 7.5)

5.0
(2.5, 8.7)

a Efficacy data from one study site enrolling six patients were excluded.
*All patients = liposarcoma and leiomyosarcoma.
† N/A = not applicable

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Figure 2: Kaplan-Meier Curves of Overall Survival in the Liposarcoma Stratum in Study 2

Table 7: Efficacy Results for the Leiomyosarcoma Stratum in Study 2a

Leiomyosarcoma
Stratum

Halaven
(n=154)

Dacarbazine
(n=149)

Overall survival

   Deaths, n (%)

121 (79)

116 (78)

   Median, months   
   (95% CI)

12.8
(10.3, 14.8)

12.3
(11.0, 15.1)

   HR (95% CI)

0.90 (0.69, 1.18)

Progression-free survival

   Events, n (%)

137 (89)

126 (85)

     Disease progression

127

118

     Death

10

8

   Median, months
   (95% CI)

2.2
(1.5, 2.7)

2.6
(2.2, 2.9)

   HR (95% CI)

1.05 (0.81, 1.35)

   Objective response rate (%)
   (95% CI)

5.2
(2.3, 10)

7.4
(3.7, 12.8)

a Efficacy data from one study site enrolling six patients were excluded.

HOW SUPPLIED/STORAGE AND HANDLING

NDC 62856-389-01      

Injection: 1 mg/2 mL, in a single-use vial. One vial per carton.

Store at 25°C (77°F); excursions permitted to 15° – 30° C (59° - 86° F). Do not freeze. Store the vials in their original cartons.

17 PATIENT COUNSELING INFORMATION

Advise the patient to read the FDA-approved patient labeling (Patient Information).

Neutropenia

Advise patients to contact their health care provider for a fever of 100.5°F or greater or other signs or symptoms of infection such as chills, cough, or burning or pain on urination [see Warnings and Precautions (5.1)]. 

Peripheral Neuropathy

Advise patients to inform their healthcare providers of new or worsening numbness, tingling and pain in their extremities [see Warnings and Precautions (5.2)].

Embryo-Fetal Toxicity

·         Advise females of reproductive potential of the potential risk to a fetus and to inform their healthcare provider of a known or suspected pregnancy [see Warnings and Precautions (5.3), Use in Specific Populations (8.1)].

·         Advise females of reproductive potential to use effective contraception during treatment with Halaven and for at least 2 weeks 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 Halaven and for 3.5 months following the final dose [seeUse in Specific Populations (8.3)].

Lactation

Advise women not to breastfeed during treatment with Halaven and for 2 weeks after the final dose [see Use in Specific Populations (8.2)]. 

Distributed by:
Eisai Inc.
Woodcliff Lake, NJ 07677

© 2016 Eisai Inc.

PATIENT INFORMATION
Halaven
® (HAL-ih-ven)
(eribulin mesylate)
injection, for intravenous use

What is the most important information I should know about Halaven?
Halaven can cause serious side effects, including:

·         Low white blood cell count (neutropenia).  This can lead to serious infections that could lead to death.  Your healthcare provider will check your blood cell counts before you receive each dose of Halaven and during treatment.  Call your healthcare provider right away if you develop any of these symptoms of infection:
° fever (temperature above 100.5°F)     
° chills
° cough
° burning or pain when you urinate

·         Numbness, tingling, or pain in your hands or feet (peripheral neuropathy). Peripheral neuropathy is common with Halaven and sometimes can be severe.  Tell your healthcare provider if you have new or worsening symptoms of peripheral neuropathy.

·         Your healthcare provider may delay, decrease your dose, or stop treatment with Halaven if you have side effects.

See “What are possible side effects of Halaven?” for more information about side effects. 

What is Halaven?
Halaven is a prescription medicine used to treat people with:

·         Breast cancer
° that has spread to other parts of the body, and
° who have already received certain types of anticancer medicines after the cancer has spread

·         Liposarcoma
° that cannot be treated with surgery or has spread to other parts of the body, and
° who have received treatment with a certain type of anticancer medicine

It is not known if Halaven is safe and effective in children under 18 years of age.

Before you receive Halaven, tell your healthcare provider about all of your medical conditions, including if you:

·         have liver or kidney problems

·         have heart problems, including a problem called congenital long QT syndrome

·         have low potassium or low magnesium in your blood

·         are pregnant or plan to become pregnant.  Halaven can harm your unborn baby.  Tell your healthcare provider right away if you become pregnant or think you are pregnant during treatment with Halaven.
° Females who are able to become pregnant should use an effective birth control during treatment with Halaven and for at least 2 weeks after the final dose of Halaven.
° Males should use an effective form of birth control when having sex with female partners who are able to become pregnant during treatment with Halaven and for 3 1/2 months (14 weeks) after the final dose of Halaven.

·         are breastfeeding or plan to breastfeed. It is not known if Halaven passes into your breast milk.  Do not breastfeed during treatment with Halaven and for 2 weeks after the final dose of Halaven.

Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

How will I receive Halaven?

·         Halaven is given by intravenous (IV) injection in your vein.

·         Halaven is given in “cycles” of treatment, with each cycle lasting 21 days.

·         Halaven is usually given on day 1 and day 8 of a treatment cycle.

What are the possible side effects of Halaven?
Halaven may cause serious side effects, including:

·         See “What is the most important information I should know about Halaven?”

·         Halaven can cause changes in your heartbeat (called QT prolongation). This can cause irregular heartbeats.  Your healthcare provider may do heart monitoring (electrocardiogram or ECG) or blood tests during your treatment with Halaven to check for heart problems.

The most common side effects of Halaven in people with breast cancer include:

·         low white blood cell count (neutropenia)

·         low red blood cell count (anemia)

·         weakness or tiredness

·         hair loss (alopecia)

·         nausea

·         constipation

The most common side effects of Halaven in people with liposarcoma include:

·         tiredness

·         nausea

·         hair loss (alopecia)

·         constipation

·         stomach pain

·         fever

Your healthcare provider will do blood tests before and during treatment while you are taking Halaven. The most common changes to blood tests in people with liposarcoma include:

·         low white blood cell count (neutropenia)

·         decreased blood levels of potassium or calcium

Tell your healthcare provider about any side effect that bothers you or that does not go away.
These are not all the possible side effects of Halaven.  Call your doctor for medical advice about side effects.  You may report side effects to FDA at 1-800-FDA-1088.

General information about Halaven
Medicines are sometimes prescribed for purposes other than those listed in a Patient Information leaflet.  You can ask your pharmacist or healthcare provider for information about Halaven that is written for health professionals.

What are the ingredients in Halaven?
Active Ingredient:  eribulin mesylate
Inactive Ingredients:  ethanol, water
Halaven
® is a registered trademark used by Eisai Inc. under license from Eisai R&D Management Co., Ltd.
Distributed by: Eisai Inc. Woodcliff Lake, NJ 07677
For more information, go to www.Halaven.com or call Eisai Inc. at 1-877-873-4724. If you would like a leaflet with larger printing, please contact Eisai Inc. at 1-877-873-4724.

This Patient Information has been approved by the U.S. Food and Drug Administration.                    Revised: 01/2016

PRINCIPAL DISPLAY PANEL

NDC 62856-389-01

Halaven™
(eribulin mesylate) Injection
1 mg/2 mL
(0.5 mg/mL)
For Intravenous Use

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Halaven eribulin mesylate injection

Product Information

Product Type

HUMAN PRESCRIPTION DRUG LABEL

Item Code (Source)

NDC:62856-389

Route of Administration

INTRAVENOUS

DEA Schedule

    

Active Ingredient/Active Moiety

Ingredient Name

Basis of Strength

Strength

ERIBULIN MESYLATE (ERIBULIN)

ERIBULIN MESYLATE

0.5 mg  in 1 mL

Inactive Ingredients

Ingredient Name

Strength

ALCOHOL

 

WATER

 

Packaging

#

Item Code

Package Description

1

NDC:62856-389-01

1 VIAL in 1 CARTON

1

2 mL in 1 VIAL

Marketing Information

Marketing Category

Application Number or Monograph Citation

Marketing Start Date

Marketing End Date

NDA

NDA201532

11/15/2010

Labeler - Eisai Inc. (831600833)

 

Revised: 12/2017


Eisai Inc.