通用中文 | 柔红霉素/阿糖胞苷针剂 | 通用外文 | Daunorubicin/cytarabine |
品牌中文 | 品牌外文 | Vyxeos | |
其他名称 | |||
公司 | Jazz(Jazz) | 产地 | 德国(Germany) |
含量 | 柔红霉素(daunorubicin)44mg/ 阿糖胞苷(cytarabine)100mg | 包装 | 1支/盒 |
剂型给药 | 注射针剂 | 储存 | 2度-8度(冰箱冷藏,禁止冷冻) |
适用范围 | 治疗两种急性骨髓性白血病(AML) |
通用中文 | 柔红霉素/阿糖胞苷针剂 |
通用外文 | Daunorubicin/cytarabine |
品牌中文 | |
品牌外文 | Vyxeos |
其他名称 | |
公司 | Jazz(Jazz) |
产地 | 德国(Germany) |
含量 | 柔红霉素(daunorubicin)44mg/ 阿糖胞苷(cytarabine)100mg |
包装 | 1支/盒 |
剂型给药 | 注射针剂 |
储存 | 2度-8度(冰箱冷藏,禁止冷冻) |
适用范围 | 治疗两种急性骨髓性白血病(AML) |
2017-08-05,美国 FDA 宣布批准 Jazz Pharmaceuticals 的新药 Vyxeos 上市,用于治疗两种急性骨髓性白血病(AML)。值得一提的是,这款创新疗法,是癌症化疗领域在 40 多年里取得的一大突破!
AML 是一种病发于骨髓,进展快速的癌症。根据美国国家癌症研究所(National Cancer Institute)估计,全美今年将有超过 21000 个新病例,并有超过 10000 名患者死于该疾病。在所有 AML 患者中,有 8%-10% 的患者属于“化疗或放疗有关的 AML”(T-AML),另外有部分患者由于血液疾病和其他癌细胞的突变,会出现“骨髓增生异常相关变化的 AML”(AML-MRC)。这两类患者的预后极不乐观,预期存活时间非常短。因此,他们也急需全新的治疗手段。
由 Jazz Pharmaceuticals 带来的 Vyxeos 是一款复方脂质体注射剂,由柔红霉素(daunorubicin)和阿糖胞苷(cytarabine)两款药物以 44mg/100mg 的比例组合而成。这款疗法由于其创新性和潜在的治疗前景,得到了业界的普遍好评。先前,它曾获得美国 FDA 颁发的孤儿药资格、突破性疗法认定、以及快速通道资格。自启动滚动新药申请后,这款疗法又获得了优先审评资格。
在一项有 309 名患者参与的临床试验中,Vyxeos 的安全性与疗效得到了验证。这些招募的患者均为新近诊断的 T -AML 或 AML-MRC 患者,他们随机被分为两组,一组接受 Vyxeos 的治疗,一组接受阿糖胞苷与柔红霉素的直接治疗(经典的 7 + 3 疗法)。试验表明,接受 Vyxeos 治疗的患者,中位总生存期达到了 9.56 个月,较对照组的 5.95 个月有显著提高。它的安全性也得到了充分的评估。综合这些数据,美国 FDA 批准让这款突破性疗法上市。
“针对特定高风险的 AML 患者群体,Vyxeos 是首款获批的疗法,”美国 FDA 肿瘤卓越中心与药物评估和研究中心下属血液学和肿瘤学产品办公室的 Richard Pazdur 博士说道:“Vyxeos 将两种常见的化疗疗法组合到一起,比起它们的单独使用,能帮助一些患者活得更久。”
▲Jazz Pharmaceuticals 的总裁兼首席执行官 Bruce Cozadd 先生(图片来源:Intelligent Fanatics)
“Vyxeos 是 40 多年来,针对这些患者群体的首个全新化疗突破,” Jazz Pharmaceuticals 的总裁兼首席执行官 Bruce Cozadd 先生说道:“我们承诺解决血液癌症群体的未满足需求,美国 FDA 对 Vyxeos 的批准也反映了这一点。”
“Vyxeos 是针对这一患者群体,首个在随机的 3 期临床试验中,较标准疗法显著延长总体生存期的化疗方案,” Moffitt 癌症中心的恶性血液学系主任 Jeffrey E. Lancet 博士说:“这些患者的预后都很差,美国 FDA 的批准带来了一项受欢迎的治疗新进展。
产品资料
2016年3月, 美国食品和药物管理局(FDA)近日授予Celator Pharma公司纳米尺度抗癌药Vyxeos(又名CPX-351)突破性药物资格,该药开发用于急性髓性白血病(AML)及其他血液癌症的治疗。具体而言,FDA已授予Vyxeos用于治疗相关急性髓性白血病(therapy related AML,t-AML)和伴有骨髓增生异常变化的AML(AML-MRC)成人患者的突破性药物资格。
Vyxeos是一种以5:1比例配比的标准癌症药物阿糖胞苷(cytarabine)和柔红霉素(daunorubicin)组合疗法,2种药物封装在一个纳米尺度的递送载体。Celator公司表示,这种纳米递送载体可增强疗效,同时限制了单独服用每种药物的风险。
FDA授予Vyxeos突破性药物资格,主要基于一项关键性III期临床试验的强劲疗效数据。该研究在既往未接受治疗的(初治)高危AML年老患者中开展,数据显示,与标准的阿糖胞苷+柔红霉素(7+3)疗法相比,Vyxeos治疗使总生存期(OS)实现了统计学意义的显著改善,达到了研究的主要终点。研究中,Vyxeos治疗组中位生存时间为9.56个月,对照组(7+3)为5.95个月。此外,与对照组(7+3)相比,Vyxeos治疗组死亡风险降低31%,缓解率也具有统计学意义的显著改善。Vyxeos治疗组患者1年存活率达41.5%,2年存活率达31.3%,而对照组(7+3)1年存活率为27.6%、2年存活率为12.3%。Vyxeos治疗组60天全因死亡率为13.7%,对照组为21.2%。相关数据将在6月4日举行的2016年美国临床肿瘤学会(ASCO)年会上公布。
基于该项研究的强效数据,Celator公司表示,将于今年第三季度向FDA提交Vyxeos的新药申请(NDA)。Celator是一家致力于肿瘤治疗的生物制药公司,该公司专有的技术平台CombiPlex能够合理设计并快速评价抗癌药物的组合,结合传统化疗与分子靶向药物,提供更强的抗肿瘤活性。CombiPlex通过体外识别组合药物的最有效协同摩尔比,同时在一种纳米尺度的药物递送复合物中固定这种摩尔比,使其在给药后能够维持这种优化的组合,确保这种摩尔比暴露于肿瘤组织,这种技术平台可解决常规组合方案的多个根本性弊端,以及组合药物开发所面临的固有挑战。
Vyxeos是Celator公司的先导化合物,这是一种纳米尺度的阿糖胞苷+柔红霉素制剂,目前已完成治疗急性髓性白血病(AML)的一项III期临床。此外,该公司也有几个药物处于临床开发:CPX-1,这是一种伊立替康+氟脲苷纳米脂质体制剂,目前处于I期临床治疗结直肠癌;CPX-8,一种疏水性的泰索帝纳米制剂,处于临床前阶段。最近,该公司扩大了CombiPlex平台的应用,纳入了分子靶向疗法。
产品资料
Jazz Pharmaceuticals Announces FDA Acceptance of NDA for Vyxeos (CPX-351), an Investigational Treatment for Acute Myeloid Leukemia, with Priority Review Status
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DUBLIN, May 31, 2017 /PRNewswire/ -- Jazz Pharmaceuticals plc (Nasdaq: JAZZ) today announced that the U.S. Food and Drug Administration (FDA) has accepted for filing with Priority Review its recently submitted New Drug Application (NDA) for Vyxeos (cytarabine and daunorubicin) liposome injection, an investigational treatment for acute myeloid leukemia (AML), a rapidly progressing and life-threatening blood cancer.1
Priority Review status is designated for drugs that may offer major advances in treatment or provide a treatment where no adequate therapy exists. The granting of Priority Review for the Vyxeos NDA accelerates the timing of the FDA review of the application compared to a standard review.
"We are pleased by the FDA's acceptance of the NDA filing with Priority Review as this action emphasizes the need for new treatments for patients living with AML," said Karen Smith, M.D., Ph.D., executive vice president, research and development and chief medical officer at Jazz Pharmaceuticals. "We look forward to working with the FDA during this review process to obtain approval of VYXEOS as quickly as possible, as AML is the most common of all adult leukemias and AML patients have among the lowest survival rates."2
The NDA submission includes clinical data from five studies, including the pivotal Phase 3 study. Data from the Phase 3 study, which met its primary endpoint, were presented at the American Society of Clinical Oncology Annual Meeting in June 2016.
Vyxeos received Breakthrough Therapy Designation from the FDA in May 2016 for the treatment of adults with therapy-related AML or AML with myelodysplasia-related changes. Vyxeos was also granted Fast Track Designation for the treatment of elderly patients with secondary AML by the FDA, and Orphan Drug Designation by the FDA and the European Commission for the treatment of AML.
About Vyxeos (CPX-351)Vyxeos (cytarabine and daunorubicin) liposome for injection, or CPX-351, is an investigational product being evaluated for the treatment of AML and is a combination of cytarabine and daunorubicin encapsulated within a nano-scale liposome at a 5:1 molar ratio. The proposed trade name, Vyxeos, is conditionally approved by the FDA and is subject to confirmation upon approval of the NDA.
About Acute Myeloid LeukemiaAcute Myeloid Leukemia (AML) is a rapidly progressing and life-threatening blood cancer that rises in frequency with age.1 The American Cancer Society estimates that there will be approximately 21,380 new cases of AML and 10,590 deaths from AML in the United States in 2017.1 The median age at diagnosis is 67 and with rising age there is progressive worsening of prognosis.1,3 Advancing age is associated with increasing risk of specific chromosomal/mutational changes and risk of pre-malignant marrow disorders, which give rise to more aggressive and less responsive forms of AML.4,5 As patients age there is also reduced tolerance for intensive chemotherapy.6 As a consequence, advances in supportive care, intensive chemotherapy and bone marrow transplantation have primarily benefitted younger patients.4,6 The five-year survival rate has not improved in older patients despite 40 years of research.6,7
About Jazz Pharmaceuticals plcJazz Pharmaceuticals plc (Nasdaq: JAZZ) is an international biopharmaceutical company focused on improving patients' lives by identifying, developing and commercializing meaningful products that address unmet medical needs. The company has a diverse portfolio of products and product candidates with a focus in the areas of sleep and hematology/oncology. In these areas, Jazz Pharmaceuticals markets Xyrem® (sodium oxbate) oral solution, Erwinaze® (asparaginase Erwinia chrysanthemi) and Defitelio® (defibrotide sodium) in the U.S. and markets Erwinase® and Defitelio® (defibrotide) in countries outside the U.S. For more information, please visit www.jazzpharmaceuticals.com.
"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1996
This press release contains forward-looking statements, including, but not limited to, statements related to the expected timing of and efforts in connection with obtaining FDA approval of the company's NDA for VYXEOS and other statements that are not historical facts. These forward-looking statements are based on the company's current plans, objectives, estimates, expectations and intentions and inherently involve significant risks and uncertainties. Actual results and the timing of events could differ materially from those anticipated in such forward-looking statements as a result of these risks and uncertainties, which include, without limitation, risks and uncertainties associated with: pharmaceutical product development; and the regulatory approval process, including the risk that the company is unable to obtain FDA approval for VYXEOS in a timely manner or at all; and other risks and uncertainties affecting the company and its development programs, including those described from time to time under the caption "Risk Factors" and elsewhere in Jazz Pharmaceuticals plc's Securities and Exchange Commission filings and reports (Commission File No. 001-33500), including the company's Quarterly Report on Form 10-Q for the quarter ended March 31, 2017 and future filings and reports by the company. Other risks and uncertainties of which the company is not currently aware may also affect the company's forward-looking statements and may cause actual results and the timing of events to differ materially from those anticipated. The forward-looking statements herein are made only as of the date hereof or as of the dates indicated in the forward-looking statements, even if they are subsequently made available by the company on its website or otherwise. The company undertakes no obligation to update or supplement any forward-looking statements to reflect actual results, new information, future events, changes in its expectations or other circumstances that exist after the date as of which the forward-looking statements were made.
Generic Name: daunorubicin and cytarabine
Dosage Form: liposome injection, powder, lyophilized, for suspension
Medically reviewed on Aug 1, 2017
WARNING: DO NOT INTERCHANGE WITH OTHER DAUNORUBICIN AND/OR CYTARABINE-CONTAINING PRODUCTS
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Vyxeos has different dosage recommendations than daunorubicin hydrochloride injection, cytarabine injection, daunorubicin citrate liposome injection, and cytarabine liposome injection. Verify drug name and dose prior to preparation and administration to avoid dosing errors [see Warnings and Precautions (5.1)].
preparation and administration to avoid dosing errors [see Warnings and Precautions (5.1)].
Indications and Usage for VyxeosVyxeos is indicated for the treatment of adults with newly-diagnosed therapy-related acute myeloid leukemia (t-AML) or AML with myelodysplasia-related changes (AML-MRC).
Vyxeos Dosage and AdministrationRecommended Dosage
A full Vyxeos course consists of 1-2 cycles of Induction and up to 2 cycles of Consolidation at the dose and schedule listed in Table 1. Prior to initiating each cycle of Vyxeos, calculate the prior cumulative anthracycline exposure for the patient [see Warnings and Precautions (5.3)]. Administer prophylactic anti-emetics before treatment with Vyxeos.
AML with myelodysplasia-related changes (AML-MRC).
Vyxeos Dosage and AdministrationRecommended DosageA full Vyxeos course consists of 1-2 cycles of Induction and up to 2 cycles of Consolidation at the dose and schedule listed in Table 1. Prior to initiating each cycle of Vyxeos, calculate the prior cumulative anthracycline exposure for the patient [see Warnings and Precautions (5.3)]. Administer prophylactic anti-emetics before treatment with Vyxeos.
Table 1: Dose and Schedule for Vyxeos |
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Cycle |
Vyxeos Dose and Schedule |
First Induction |
(daunorubicin 44 mg/m2 and cytarabine 100 mg/m2) liposome days 1, 3, and 5 |
Second Induction a |
(daunorubicin 44 mg/m2 and cytarabine 100 mg/m2) liposome days 1 and 3 |
Consolidation |
(daunorubicin 29 mg/m2 and cytarabine 65 mg/m2) liposome days 1 and 3 |
Only for patients failing to achieve a response with the first induction cycle.
For the first cycle of induction, the recommended dose of Vyxeos is (daunorubicin 44 mg/m2 and cytarabine 100 mg/m2) liposome administered via intravenous infusion over 90 minutes on days 1, 3, and 5. Prior to initiating induction, assess cardiac function and obtain liver and renal function studies. For patients who do not achieve remission with the first induction cycle, a second induction cycle may be administered 2 to 5 weeks after the first if there was no unacceptable toxicity with Vyxeos. The recommended dose for the second induction cycle of Vyxeos is (daunorubicin 44 mg/m2 and cytarabine 100 mg/m2) liposome administered via intravenous infusion over 90 minutes on days 1 and 3.
Administer the first consolidation cycle 5 to 8 weeks after the start of the last induction. The recommended dose for each cycle of consolidation therapy is Vyxeos (daunorubicin 29 mg/m2 and cytarabine 65 mg/m2) liposome administered via intravenous infusion over 90 minutes on days 1 and 3.
Assess cardiac function, complete blood counts, liver and renal function before each consolidation cycle. Do not start Vyxeos consolidation until the absolute neutrophil count recovers to greater than 0.5 Gi/L and the platelet count recovers to greater than 50 Gi/L in the absence of unacceptable toxicity. Administer the second consolidation cycle 5 to 8 weeks after the start of the first consolidation cycle in patients who do not show disease progression or unacceptable toxicity to Vyxeos.
Dosage ModificationMissed Doses of Vyxeos
If a planned dose of Vyxeos is missed, administer the dose as soon as possible and adjust the dosing schedule accordingly, maintaining the treatment interval.
Hypersensitivity Reactions
For hypersensitivity reactions of any grade/severity, interrupt Vyxeos infusion immediately and manage symptoms. Reduce the rate of infusion or discontinue treatment as outlined below [see Warnings and Precautions (5.4)].
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Mild symptoms: Once symptoms resolve, reinitiate infusion at half the prior rate of infusion. Consider premedication with antihistamines and/or corticosteroids for subsequent doses of Vyxeos.
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Moderate symptoms: Do not reinitiate infusion. For subsequent doses of Vyxeos, premedicate with antihistamines and/or corticosteroids prior to initiating infusion at same rate.
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Severe/life-threatening symptoms: Permanently discontinue Vyxeos treatment, treat according to the standard of care to manage symptoms, and monitor patient until symptoms resolve.
Cardiotoxicity
Discontinue Vyxeos in patients who exhibit impaired cardiac function unless the benefit of continuing treatment outweighs the risk [see Warnings and Precautions (5.3)].
Preparation and Handling InstructionsVyxeos is a cytotoxic drug. Follow applicable special handling and disposal procedures.1 Vyxeos is supplied as a single-dose vial and does not contain any preservatives. Do not save any unused portions for later administration.
Preparation Instructions:
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Calculate the Vyxeos dose based on daunorubicin and individual patient's BSA.
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Calculate the number of vials of Vyxeos based on the daunorubicin dose.
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Remove the appropriate number of vials of Vyxeos from the refrigerator and equilibrate to the room temperature for 30 minutes.
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Then, reconstitute each vial with 19 mL of Sterile Water for Injection using a sterile syringe and immediately thereafter start a 5-minute timer.
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Carefully swirl the contents of the vial for 5 minutes while gently inverting the vial every 30 seconds.
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Do not heat, vortex, or shake vigorously.
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After reconstitution, let rest for 15 minutes.
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The reconstituted product should be an opaque, purple, homogeneous dispersion, essentially free from visible particulates. After reconstitution (but before final dilution), each mL will contain 2.2 mg of daunorubicin and 5 mg of cytarabine.
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Gently invert each vial 5 times prior to withdrawing the reconstituted product for further dilution. If the reconstituted product is not diluted into an infusion bag immediately, store in refrigerator at 2°C to 8°C for up to 4 hours.
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Calculate the volume of reconstituted Vyxeos required using the following formula:
[volume required (mL) = dose of daunorubicin (mg/m2) X patient's BSA (m2) ÷ 2.2 (mg/mL)]
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Aseptically withdraw the calculated volume of the reconstituted product from the vial(s) with a sterile syringe and transfer it to an infusion bag containing 500 mL of 0.9% Sodium Chloride Injection, USP or 5% Dextrose Injection, USP. There may be residual product remaining in the vial. Discard unused portion.
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Gently invert the bag to mix the solution. The dilution of the reconstituted product results in a deep purple, translucent, homogeneous dispersion, free from visible particulates.
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If the diluted infusion solution is not used immediately, store in refrigerator at 2°C to 8°C for up to 4 hours.
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Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. Only solutions without visible particles should be used.
Administration Instructions•
For intravenous use only.
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Do not mix Vyxeos with or administer as an infusion with other drugs.
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Administer Vyxeos by constant intravenous infusion over 90 minutes via an infusion pump through a central venous catheter or a peripherally inserted central catheter. Do not use an in-line filter.
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Flush the line after administration with 0.9% Sodium Chloride Injection, USP or 5% Dextrose Injection, USP.
Dosage Forms and StrengthsVyxeos is a sterile, preservative-free, purple, lyophilized cake for reconstitution supplied in a single-dose clear glass vial as follows:
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For injection: 44 mg daunorubicin and 100 mg cytarabine encapsulated in liposomes.
ContraindicationsThe use of Vyxeos is contraindicated in patients with the following:
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History of serious hypersensitivity reaction to cytarabine, daunorubicin, or any component of the formulation [see Warnings and Precautions (5.4)].
Warnings and PrecautionsDo Not Interchange With Other Daunorubicin And/Or Cytarabine-Containing ProductsDue to substantial differences in the pharmacokinetic parameters, the dose and schedule recommendations for Vyxeos are different from those for daunorubicin hydrochloride injection, cytarabine injection, daunorubicin citrate liposome injection, and cytarabine liposome injection. Verify drug name and dose prior to preparation and administration to avoid dosing errors. Do not substitute other preparations of daunorubicin or cytarabine for Vyxeos.
HemorrhageSerious or fatal hemorrhage events, including fatal central nervous system (CNS) hemorrhages, associated with prolonged severe thrombocytopenia, have occurred in patients treated with Vyxeos. In Study 1 (NCT01696084), the incidence of any grade hemorrhagic events during the entire treatment period was 74% of patients on the Vyxeos arm and 56% on the control arm. The most frequently reported hemorrhagic event was epistaxis (36% in Vyxeos arm and 18% in control arm). Grade 3 or greater events occurred in 12% of Vyxeos treated patients and 8% of patients treated with 7+3. Fatal treatment-emergent CNS hemorrhage not in the setting of progressive disease occurred in 2% of patients on the Vyxeos arm and in 0.7% of patients on the control arm. Monitor blood counts regularly until recovery and administer platelet transfusion support as required [see Adverse Reactions (6.1)].
CardiotoxicityVyxeos contains the anthracycline daunorubicin, which has a known risk of cardiotoxicity. Prior therapy with anthracyclines, pre-existing cardiac disease, previous radiotherapy to the mediastinum, or concomitant use of cardiotoxic drugs may increase the risk of daunorubicin-induced cardiac toxicity. Prior to administering Vyxeos, obtain an electrocardiogram (ECG) and assess cardiac function by multi-gated radionuclide angiography (MUGA) scan or echocardiography (ECHO). Repeat MUGA or ECHO determinations of left ventricular ejection fraction (LVEF) prior to consolidation with Vyxeos and as clinically required. Discontinue Vyxeos in patients with impaired cardiac function unless the benefit of initiating or continuing treatment outweighs the risk. Vyxeos treatment is not recommended in patients with LVEF that is less than normal.
Total cumulative doses of non-liposomal daunorubicin greater than 550 mg/m2 have been associated with an increased incidence of drug-induced congestive heart failure. The tolerable limit appears lower (400 mg/m2) in patients who received radiation therapy to the mediastinum.
Calculate the lifetime cumulative anthracycline exposure prior to each cycle of Vyxeos. Vyxeos treatment is not recommended in patients whose lifetime anthracycline exposure has reached the maximum cumulative limit. The exposure to daunorubicin following each cycle of Vyxeos is shown in Table 2.
Table 2: Cumulative Exposure of Daunorubicin per Cycle of Vyxeos |
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Therapy |
Daunorubicin per Dose |
Number of Doses per Cycle |
Daunorubicin per Cycle |
First Induction Cycle |
44 mg/m2 |
3 |
132 mg/m2 |
Second Induction Cycle |
44 mg/m2 |
2 |
88 mg/m2 |
Each Consolidation Cycle |
29 mg/m2 |
2 |
58 mg/m2 |
Serious or fatal hypersensitivity reactions, including anaphylactic reactions, have been reported with daunorubicin and cytarabine. Monitor patients for hypersensitivity reactions. If a mild or moderate hypersensitivity reaction occurs, interrupt or slow the rate of infusion with Vyxeos and manage symptoms. If a severe or life-threatening hypersensitivity reaction occurs, discontinue Vyxeos permanently, treat symptoms according to the standard of care, and monitor until symptoms resolve [see Dosage and Administration (2.2)].
Copper OverloadReconstituted Vyxeos contains 5 mg/mL copper gluconate, of which 14% is elemental copper. There is no clinical experience with Vyxeos in patients with Wilson’s disease or other copper-related metabolic disorders. The maximum theoretical total exposure of copper under the recommended Vyxeos dosing regimen is 106 mg/m2[see Dosage and Administration (2.1)]. Consult with a hepatologist and nephrologist with expertise in managing acute copper toxicity in patients with Wilson’s disease treated with Vyxeos. Monitor total serum copper, serum non-ceruloplasmin bound copper, 24-hour urine copper levels and serial neuropsychological examinations in these patients. Use Vyxeos in patients with Wilson’s disease only if the benefits outweigh the risks. Discontinue Vyxeos in patients with signs or symptoms of acute copper toxicity.
Tissue NecrosisDaunorubicin has been associated with severe local tissue necrosis at the site of drug extravasation. Administer Vyxeos by the intravenous route only. Do not administer by intramuscular or subcutaneous route.
Embryo-Fetal ToxicityBased on its mechanism of action and findings from animal studies with daunorubicin and cytarabine, Vyxeos can cause embryo-fetal harm when administered to a pregnant woman. There are no adequate and well-controlled studies of Vyxeos, daunorubicin, or cytarabine in pregnant women. Daunorubicin and cytarabine are reproductive and developmental toxicants in multiple species (mice, rats, and/or dogs), starting at a dose that was approximately 0.02 times the exposure in patients at the recommended human dose on an mg/m2 basis. Patients should be advised to avoid becoming pregnant while taking Vyxeos. If this drug is used during pregnancy or if the patient becomes pregnant while taking this drug, apprise the patient of the potential risk to a fetus. Advise females and males of reproductive potential to use effective contraception during treatment and for 6 months following the last dose of Vyxeos [see Use in Specific Populations (8.1) and (8.3)].
Adverse ReactionsThe following adverse reactions are discussed in greater detail in other sections of the labeling:
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Hemorrhage [see Warnings and Precautions (5.2)]
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Cardiotoxicity [see Warnings and Precautions (5.3)]
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Hypersensitivity Reactions [see Warnings and Precautions (5.4)]
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Copper Overload [see Warnings and Precautions (5.5)]
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Tissue Necrosis [see Warnings and Precautions (5.6)]
Clinical Trials 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 Vyxeos was determined in a randomized trial for adults with newly-diagnosed tAML or AML-MRC [see Clinical Studies (14)] which included 153 patients treated with Vyxeos and 151 patients treated with a standard combination of cytarabine and daunorubicin (7+3). At study entry, patients were required to have a LVEF of at least 50% and a prior lifetime cumulative anthracycline exposure less than 368 mg/m2 daunorubicin (or equivalent). On study, the median number of cycles administered was 2 (range, 1–4 cycles) on the Vyxeos arm and 1 (range, 1–4 cycles) on the control arm. The median cumulative daunorubicin dose was 189 mg/m2 (range, 44–337 mg/m2) on the Vyxeos arm and 186 mg/m2(range, 44–532 mg/m2) on the control arm.
Nine patients each on the Vyxeos arm (6%) and the control arm (6%) had a fatal adverse reaction on treatment or within 30 days of therapy that was not in the setting of progressive disease. Fatal adverse reactions on the Vyxeos arm included infection, CNS hemorrhage, and respiratory failure. Overall, all-cause day-30 mortality was 6% in the Vyxeos arm and 11% in the control arm. During the first 60 days of the study, 14% (21/153) of patients died in the Vyxeos arm vs. 21% (32/151) of patients in the 7+3 treatment group.
The most common serious adverse reactions (incidence ≥ 5%) on the Vyxeos arm were dyspnea, myocardial toxicity, sepsis, pneumonia, febrile neutropenia, bacteremia and hemorrhage. Adverse reactions led to discontinuation of Vyxeos in 18% (28/153) of patients, and 13% (20/151) in the control arm. The adverse reactions leading to discontinuation on the Vyxeos arm included prolonged cytopenias, infection, cardiotoxicity, respiratory failure, hemorrhage (GI and CNS), renal insufficiency, colitis, and generalized medical deterioration. The most common adverse reactions (incidence ≥ 25%) in patients on the Vyxeos arm were hemorrhagic events, febrile neutropenia, rash, edema, nausea, mucositis, diarrhea, constipation, musculoskeletal pain, fatigue, abdominal pain, dyspnea, headache, cough, decreased appetite, arrhythmia, pneumonia, bacteremia, chills, sleep disorders, and vomiting. The incidences of common adverse drug reactions during the induction phase in Study 1 are presented in Table 3.
Table 3: Common Adverse Reactions (≥ 10% Incidence in the Vyxeos arm) During the Induction Phase |
||||
Adverse Reaction a |
All Grades b |
Grades 3 to 5 b |
||
|
Vyxeos N=153 n (%) |
7+3 N=151 n (%) |
Vyxeos N=153 n (%) |
7+3 N=151 n (%) |
Hemorrhage a |
107 (70) |
74 (49) |
15 (10) |
9 (6) |
Febrile Neutropenia |
104 (68) |
103 (68) |
101 (66) |
102 (68) |
Rash a |
82 (54) |
55 (36) |
8 (5) |
2 (1) |
Edema a |
78 (51) |
90 (60) |
2 (2) |
5 (3) |
Nausea |
72 (47) |
79 (52) |
1 (1) |
1 (1) |
Diarrhea/Colitis a |
69 (45) |
100 (66) |
4 (3) |
10 (7) |
Mucositis a |
67 (44) |
69 (46) |
2 (1) |
7 (5) |
Constipation |
61 (40) |
57 (38) |
0 |
0 |
Musculoskeletal pain a |
58 (38) |
52 (34) |
5 (3) |
4 (3) |
Abdominal pain a |
51 (33) |
45 (30) |
3 (2) |
3 (2) |
Cough a |
51 (33) |
34 (23) |
0 |
1 (1) |
Headache a |
51 (33) |
36 (24) |
2 (1) |
1 (1) |
Dyspnea a |
49 (32) |
51 (34) |
17 (11) |
15 (10) |
Fatigue a |
49 (32) |
58 (38) |
8 (5) |
8 (5) |
Arrhythmia a |
46 (30) |
41 (27) |
10 (7) |
7 (5) |
Decreased appetite |
44 (29) |
57 (38) |
2 (1) |
5 (3) |
Pneumonia (excluding fungal) a |
39 (26) |
35 (23) |
30 (20) |
26 (17) |
Sleep disorders a |
38 (25) |
42 (28) |
2 (1) |
1 (1) |
Bacteremia (excluding sepsis) a |
37 (24) |
37 (25) |
35 (23) |
31 (21) |
Vomiting a |
37 (24) |
33 (22) |
0 |
0 |
Chills |
35 (23) |
38 (25) |
0 |
0 |
Hypotension a |
30 (20) |
32 (21) |
7 (5) |
1 (1) |
Non-conduction cardiotoxicity a |
31 (20) |
27 (18) |
13 (9) |
15 (10) |
Dizziness a |
27 (18) |
26 (17) |
1 (1) |
0 |
Fungal infection a |
27 (18) |
19 (13) |
11 (7) |
9 (6) |
Hypertension a |
28 (18) |
22 (15) |
15 (10) |
8 (5) |
Hypoxia a |
28 (18) |
31 (21) |
19 (12) |
23 (15) |
Upper respiratory infections (excluding fungal) a |
28 (18) |
19 (13) |
4 (3) |
1 (1) |
Chest pain a |
26 (17) |
22 (15) |
5 (3) |
0 |
Pyrexia |
26 (17) |
23 (15) |
1 (1) |
2 (1) |
Catheter/device/injection site reaction a |
24 (16) |
15 (10) |
0 |
0 |
Delirium a |
24 (16) |
33 (22) |
4 (3) |
9 (6) |
Pleural effusion |
24 (16) |
25 (17) |
3 (2) |
2 (1) |
Anxiety |
21 (14) |
16 (11) |
0 |
0 |
Pruritus a |
23 (15) |
14 (9) |
0 |
0 |
Sepsis (excluding fungal) a |
17 (11) |
20 (13) |
n/a |
|
Hemorrhoids |
16 (11) |
12 (8) |
0 |
0 |
Petechiae |
17 (11) |
17 (11) |
0 |
0 |
Renal insufficiency a |
17 (11) |
17 (11) |
7 (5) |
7 (5) |
Transfusion reactions a |
17 (11) |
16 (11) |
3 (2) |
1 (1) |
Visual impairment (except bleeding) a |
16 (11) |
8 (5) |
0 |
0 |
a Grouped terms: Hemorrhage: Anal hemorrhage, Blood blister, Blood urine present, Breast hematoma, Catheter site bruise, Catheter site hemorrhage, Central nervous system hemorrhage, Cerebral hematoma, Cerebral hemorrhage, Coagulopathy, Conjunctival hemorrhage, Contusion, Ecchymosis, Enterocolitis hemorrhagic, Epistaxis, Gastric hemorrhage, Gastrointestinal hemorrhage, Gingival bleeding, Hematemesis, Hematochezia, Hematoma, Hematuria, Hemoptysis, Hemorrhage, Hemorrhage intracranial, Hemorrhage subcutaneous, Hemorrhage urinary tract, Hemorrhoidal hemorrhage, Lip hematoma, Lip hemorrhage, Lower gastrointestinal hemorrhage, Melena, Mouth hemorrhage, Mucosal hemorrhage, Periorbital hematoma, Periorbital hemorrhage, Pharyngeal hematoma, Pharyngeal hemorrhage, Post procedural contusion, Post procedural hematoma, Post procedural hemorrhage, Pulmonary alveolar hemorrhage, Pulmonary hemorrhage, Purpura, Rectal hemorrhage, Retinal hemorrhage, Scleral hemorrhage, Scrotal hematoma, Skin ulcer hemorrhage, Small intestinal hemorrhage, Stomatitis hemorrhagic, Subdural hematoma, Subdural hemorrhage, Subgaleal hematoma, Tongue hemorrhage, Traumatic hematoma, Upper gastrointestinal hemorrhage, Urethral hemorrhage, Vaginal hemorrhage, Vessel puncture site hemorrhage, Vitreous hemorrhage; Rash: Dermatitis, Dermatitis acneiform, Dermatitis allergic, Dermatitis contact, Eczema, Erythema nodosum, Exfoliative rash, Psoriasis, Rash, Rash erythematous, Rash follicular, Rash generalized, Rash macular, Rash maculo-papular, Rash papular, Rash pruritic, Rash pustular, Skin exfoliation; Edema: Face edema, Fluid overload, Fluid retention, Generalized edema, Localized edema, Edema, Edema peripheral, Penile edema, Scrotal edema, Swelling, Swelling face; Diarrhea/Colitis : Cecitis, Colitis, Diarrhea, Enterocolitis, Ileitis, Neutropenic colitis, Enteritis, Enterocolitis; Mucositis: Anal erosion, Anorectal discomfort, Duodenitis, Gastric ulcer, Gastrointestinal inflammation, Gingival pain, Gingival swelling, Gingivitis, Glossodynia, Laryngeal inflammation, Lip ulceration, Mouth ulceration, Mucosal inflammation, Mucosal ulceration, Odynophagia, Edema mouth, Esophageal ulcer, Esophagitis, Oral mucosa erosion, Oral mucosal blistering, Oral mucosal erythema, Pharyngeal ulceration, Proctalgia, Proctitis, Rectal ulcer, Stomatitis, Tongue ulceration, Oropharyngeal pain, Oral pain, Oropharyngeal discomfort, Pharyngeal erythema; Musculoskeletal pain: Arthralgia, Back pain, Bone pain, Coccydynia, Limb discomfort, Musculoskeletal chest pain, Musculoskeletal pain, Myalgia, Neck pain, Pain in extremity, Pain in jaw; Abdominal pain : Abdominal pain, Abdominal distension, Abdominal pain upper, Abdominal discomfort, Abdominal pain lower, Abdominal tenderness; Cough : Cough, Productive Cough; Headache : Headache, Sinus Headache; Dyspnea : Acute respiratory distress syndrome, Acute respiratory failure, Bronchospasm, Dyspnea, Dyspnea exertional, Respiratory distress, Respiratory failure, Wheezing; Fatigue : Fatigue, Asthenia; Arrhythmia : Arrhythmia, Arrhythmia supraventricular, Atrial fibrillation, Atrial flutter, Atrial tachycardia, Atrioventricular block first degree, Atrioventricular block second degree, Bradycardia, Bundle branch block right, Extrasystoles, Heart rate increased, Nodal arrhythmia, Nodal rhythm, Sinus arrest, Sinus arrhythmia, Sinus bradycardia, Sinus tachycardia, Supraventricular tachycardia, Tachycardia, Ventricular extrasystoles, Ventricular tachycardia; Pneumonia (excluding fungal): Lung consolidation, Lung infection, Lung infiltration, Pneumonia, Pneumonia aspiration, Pneumonia bacterial, Pneumonia klebsiella, Pneumonia pseudomonas aeruginosa, Pneumonia viral; Sleep disorders: Abnormal dreams, Insomnia, Nightmare, Sleep apnea syndrome, Sleep disorder; Bacteremia (excluding sepsis) : Bacillus test positive, Bacteremia, Bacteroides bacteremia, Corynebacterium test positive, Enterobacter bacteremia, Enterococcal bacteremia, Enterococcus test positive, Escherichia bacteremia, Klebsiella bacteremia, Pseudomonal bacteremia, Pseudomonas test positive, Staphylococcal bacteremia, Staphylococcus test positive, Stomatococcus test positive, Streptococcal bacteremia, Streptococcus test positive, Escherichia test positive, Klebsiella test positive; Vomiting : Retching, Vomiting; Hypotension: Hypotension, Orthostatic hypotension; Non-conduction cardiotoxicity: Acute coronary syndrome, Acute endocarditis, Acute myocardial infarction, Angina pectoris, Aortic valve incompetence, Cardiac arrest, Cardiac failure, Cardiac failure congestive, Cardiac murmur, Cardiogenic shock, Cardiomegaly, Cardiomyopathy, Cardiotoxicity, Cytotoxic cardiomyopathy, Diastolic dysfunction, Dilatation atrial, Dilatation ventricular, Ejection fraction decreased, Endocarditis, Left ventricular dysfunction, Mitral valve incompetence, Myocardial infarction, Pericardial effusion, Pericarditis, Restrictive cardiomyopathy, Right ventricular hypertrophy; Dizziness : Dizziness, Dizziness postural, Dizziness exertional; Fungal infection : Aspergillosis, Bronchopulmonary aspergillosis, Candida test positive, Candidiasis, Fungemia, Fungal infection, Fungal skin infection, Intertrigo candida, Lower respiratory tract infection fungal, Oral candidiasis, Pneumonia fungal, Pulmonary mycosis, Sinusitis fungal, Skin candida, Tinea cruris, Tinea infection, Vulvovaginal mycotic infection, Wound infection fungal, Zygomycosis, Mycotic aneurysm; Hypertension: Blood pressure increased, Hypertension; Hypoxia: Hypoxia, Oxygen saturation decreased; Upper respiratory infection (excluding fungal): Acute sinusitis, Chronic sinusitis, Increased upper airway secretion, Nasal congestion, Pharyngitis, Rhinitis, Rhinorrhea, Sinus congestion, Sinusitis, Sinusitis bacterial, Upper respiratory tract congestion, Upper respiratory tract infection, Upper-airway cough syndrome, Viral upper respiratory tract infection; Chest pain : Chest discomfort, Chest pain, Non-cardiac chest pain, Pleuritic pain; Catheter/device/injection site reaction : Catheter site discharge, Catheter site erosion, Catheter site erythema, Catheter site inflammation, Catheter site edema, Catheter site pain, Catheter site pruritus, Catheter site rash, Infusion site edema, Infusion site pain, Infusion site vesicles, Catheter site related reaction; Delirium: Cognitive disorder, Confusional state, Delirium; Pruritis : Anal pruritis, Ear pruritis, Pruritis, Pruritis generalized; Sepsis (excluding fungal): Enterobacter sepsis, Escherichia sepsis, Klebsiella sepsis, Neutropenic sepsis, Sepsis, Septic shock, Staphylococcal sepsis, Streptococcal sepsis, Urosepsis, Viral sepsis; Renal insufficiency: Acute prerenal failure, Azotemia, Oliguria, Renal failure, Renal failure acute, Renal failure chronic; Transfusion reactions : Allergic transfusion reaction, Febrile non-hemolytic transfusion reaction, Transfusion reaction; Visual impairment (except bleeding):Photophobia , Photopsia , Photosensitivity reaction , Retinal tear , Scintillating scotoma , Uveitis ,Vision blurred , Visual acuity reduced , Visual impairment , Vitreous detachment , Vitreous floaters
b Adverse reactions were graded using NCI CTCAE version 3.0.
During the consolidation phase (both consolidation cycles pooled) the two most common adverse reactions on the Vyxeos arm are the same as those during induction, hemorrhagic events and febrile neutropenia. These occurred at lower rates in the pooled consolidation phase (43% and 29%, respectively), compared to the induction phase. All of the common adverse reactions (≥ 10% incidence in the Vyxeos arm) seen in the pooled consolidation phase were also seen in the induction phase. These occurred at lower incidence in the consolidation phase, with the exception of chills, dizziness and pyrexia, where the incidences were relatively similar across the induction and consolidation cycles.
Other notable adverse drug reactions that occurred in less than 10% of patients treated with Vyxeos during induction or consolidation included:
•
Ear and labyrinth disorders: Deafness, Deafness unilateral
•
Eye Disorders: Eye conjunctivitis, Dry eye, Eye edema, Eye swelling, Eye irritation, Eye pain, Ocular discomfort, Ocular hyperemia, Periorbital edema, Scleral hyperemia
•
Gastrointestinal disorders: Dyspepsia
•
Psychiatric disorders: Hallucinations
•
Respiratory, thoracic and mediastinal disorders: Pneumonitis
Laboratory Abnormalities
All patients developed severe neutropenia, thrombocytopenia, and anemia. See Table 4 for the incidences of Grade 3 thrombocytopenia and Grade 4 neutropenia that were prolonged in the absence of active leukemia.
Table 4: Prolonged Cytopenias for Patients in Study 1 |
||||
|
Induction 1 |
Consolidation 1 b |
||
|
Vyxeos N=58 n (%) |
7+3 N=34 n (%) |
Vyxeos N=48 n (%) |
5+2 N=32 n (%) |
Prolonged thrombocytopenia a |
16 (28) |
4 (12) |
12 (25) |
5 (16) |
Prolonged neutropenia a |
10 (17) |
1 (3) |
5 (10) |
1 (3) |
a Platelets < 50 Gi/L or neutrophils < 0.5 Gi/L lasting past cycle day 42 in the absence of active leukemia.
b Patients receiving at least 1 consolidation.
Grade 3-4 chemistry abnormalities occurring in greater than 5% of Vyxeos treated patients in Study 1 are presented in Table 5.
Table 5: Grade 3-4 a Chemistry Abnormalities ≥ 5% of Vyxeos Treated Patients in Study 1 |
||||
|
Induction |
Consolidation |
||
|
Vyxeos N=153 n (%) |
7+3 N=151 n (%) |
Vyxeos N=49 n (%) |
5+2 N=32 n (%) |
Chemistry Abnormalities |
||||
Hyponatremia |
21 (14) |
20 (13) |
3 (6) |
0 |
Hypokalemia |
14 (9) |
19 (13) |
3 (6) |
2 (6) |
Hypoalbuminemia |
11 (7) |
19 (13) |
1 (2) |
4 (13) |
Hyperbilirubinemia |
9 (6) |
6 (4) |
1 (2) |
1 (3) |
Alanine aminotransferase |
7 (5) |
8 (5) |
0 |
1 (3) |
a Graded using NCI CTCAE version 3.0.
Drug InteractionsCardiotoxic AgentsConcomitant use of cardiotoxic agents may increase the risk of cardiotoxicity. Assess cardiac function more frequently when Vyxeos is coadministered with cardiotoxic agents [see Warnings and Precautions (5.3)].
Hepatotoxic AgentsConcomitant use with hepatotoxic agents may impair liver function and increase the toxicity of Vyxeos. Monitor hepatic function more frequently when Vyxeos is coadministered with hepatotoxic agents.
USE IN SPECIFIC POPULATIONSPregnancyRisk Summary
Based on anecdotal data of cytarabine in pregnant women and results of studies of daunorubicin and cytarabine in animals, Vyxeos can cause embryo-fetal harm when administered to a pregnant woman. There are no adequate and well-controlled studies of Vyxeos, daunorubicin, or cytarabine in pregnant women. Daunorubicin and cytarabine are reproductive and developmental toxicants in multiple species (mice, rats, and/or dogs), starting at a dose that was approximately 0.02 times the exposure in patients at the recommended human dose on a mg/m2 basis [see Animal Data]. Patients should be advised to avoid becoming pregnant while taking Vyxeos. If this drug is used during pregnancy, or if the patient becomes pregnant while taking this drug, apprise the patient of the potential harm to a fetus.
The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. Adverse outcomes in pregnancy occur regardless of the health of the mother or the use of medications. In the U.S. general population, the estimated background risks of major birth defects and miscarriage in clinically recognized pregnancies are 2 to 4% and 15 to 20%, respectively.
Data
Human Data
Cytarabine can cause fetal harm if a pregnant woman is exposed to the drug. Four anecdotal cases of major limb malformations have been reported in infants after their mothers received intravenous cytarabine, alone or in combination with other agents, during the first trimester.
Animal Data
A liposomal formulation of daunorubicin was administered to rats on gestation days 6 through 15 at 0.3, 1.0, or 2.0 mg/kg/day (about 0.04, 0.14, or 0.27 the recommended human dose on a mg/m2 basis) and produced severe maternal toxicity and embryolethality at 2.0 mg/kg/day and was embryotoxic and caused fetal malformations (anophthalmia, microphthalmia, incomplete ossification) at 0.3 mg/kg/day. Embryotoxicity was characterized by increased embryo-fetal deaths, reduced numbers of litters, and reduced litter sizes.
Cytarabine was teratogenic in mice (cleft palate, phocomelia, deformed appendages, skeletal abnormalities) when doses ≥ 2 mg/kg/day were administered IP during the period of organogenesis (about 0.06 times the recommended human dose on a mg/m2 basis), and in rats (deformed appendages) when 20 mg/kg was administered as a single IP dose on day 12 of gestation (about 1.2 times the recommended human dose on a mg/m2 basis). Single IP doses of 50 mg/kg in rats (about 3 times the recommended human dose on a mg/m2 basis) on day 14 of gestation reduced prenatal and postnatal brain size and permanent impairment of learning ability.
Cytarabine was embryotoxic in mice when administered during the period of organogenesis. Embryotoxicity was characterized by decreased fetal weight at 0.5 mg/kg/day (about 0.02 times the recommended human dose on a mg/m2 basis), and increased early and late resorptions and decreased live litter sizes at 8 mg/kg/day (about 0.24 times the recommended human dose on a mg/m2 basis).
LactationRisk Summary
There are no data on the presence of daunorubicin, cytarabine, or their metabolites in human milk, their effects on the breastfed infant, or their effects on milk production. Because of the potential for serious adverse reactions in breastfed infants, advise lactating women not to breastfeed during treatment with Vyxeos and for at least 2 weeks after the last dose.
Females and Males of Reproductive PotentialPregnancy Testing
Vyxeos can cause fetal harm when administered to a pregnant woman [see Use in Specific Populations(8.1), Nonclinical Toxicology (13.1)]. Verify the pregnancy status of females of reproductive potential prior to initiating Vyxeos.
Contraception
Females
Advise females of reproductive potential to use effective contraception during treatment with Vyxeos and for at least 6 months after the last dose.
Males
Advise males with female partners of reproductive potential to use effective contraception during treatment with Vyxeos and for at least 6 months after the last dose [see Nonclinical Toxicology (13.1)].
Inferrtility
Based on findings of daunorubicin and cytarabine in animals, male fertility may be compromised by treatment with Vyxeos [see Nonclinical Toxicology (13.1)].
Pediatric UseSafety and effectiveness of Vyxeos in pediatric patients have not been established.
Geriatric UseOf the 375 patients who received Vyxeos (daunorubicin 44 mg/m2 and cytarabine 100 mg/m2) liposome in clinical studies, 57% were 65 years and over. No overall differences in safety were observed between these patients and younger patients, with the exception of bleeding events, which occurred more frequently in patients 65 years and older compared to younger patients (77% vs. 59%).
Renal ImpairmentDosage adjustment is not required for patients with mild (creatinine clearance [CLCR] 60 mL/min to 89 mL/min by Cockcroft Gault equation [C-G]) or moderate (CLCR 30 mL/min to 59 mL/min) renal impairment. Vyxeos has not been studied in patients with severe renal impairment (CLCR 15 mL/min to 29 mL/min) or end-stage renal disease [see Clinical Pharmacology (12.3)].
Hepatic ImpairmentDosage adjustment is not required for patients with a bilirubin level less than or equal to 3 mg/dL. Vyxeos has not been studied in patients with bilirubin level greater than 3 mg/dL [see Clinical Pharmacology (12.3)].
Vyxeos DescriptionVyxeos (daunorubicin and cytarabine) liposome for injection is a combination of daunorubicin and cytarabine in a 1:5 molar ratio encapsulated in liposomes for intravenous administration. The liposome membrane is composed of distearoylphosphatidylcholine (DSPC), distearoylphosphatidylglycerol (DSPG), and cholesterol in a 7:2:1 molar ratio.
Daunorubicin is an anthracycline topoisomerase inhibitor. The chemical name for daunorubicin is (1S,3S)-3-acetyl-1,2,3,4,6,11-hexahydro-3,5,12-trihydroxy-10-methoxy-6,11-dioxo-1-naphthacenyl-3-amino-2,3,6-trideoxy-α-L-lyxo-hexopyranoside; its molecular weight is 527.52. Daunorubicin has the following structural formula:
Cytarabine is a nucleoside metabolic inhibitor. The chemical name of cytarabine is 4-amino-1-β-D-arabinofuranosyl-2(1H)-pyrimidinone; its molecular weight is 243.22. Cytarabine has the following structural formula:
Vyxeos liposome for injection is supplied as a sterile, preservative-free, purple, lyophilized cake, in a single-dose vial. Each vial contains 44 mg daunorubicin and 100 mg cytarabine, and the following inactive ingredients: distearoylphosphatidylcholine 454 mg, distearoylphosphatidylglycerol 132 mg, cholesterol HP 32 mg, copper gluconate 100 mg, triethanolamine 4 mg, and sucrose 2054 mg.
Vyxeos - Clinical PharmacologyMechanism of ActionVyxeos (daunorubicin and cytarabine) liposome for injection is a liposomal formulation of daunorubicin and cytarabine at a fixed 1:5 molar ratio. The 1:5 molar ratio of daunorubicin:cytarabine has been shown to have synergistic effects at killing leukemia cells in vitro and in murine models. Daunorubicin has antimitotic and cytotoxic activity, which is achieved by forming complexes with DNA, inhibiting topoisomerase II activity, inhibiting DNA polymerase activity, affecting regulation of gene expression, and producing DNA-damaging free radicals. Cytarabine is a cell cycle phase-specific antineoplastic agent, affecting cells only during the S-phase of cell division. Cytarabine acts primarily through inhibition of DNA polymerase. Based on animal data, the liposomes enter and persist in the bone marrow, where they are taken up intact by bone marrow cells. In leukemia-bearing mice, the liposomes are taken up by leukemia cells to a greater extent than by normal bone marrow cells. After cellular internalization, liposomes undergo degradation releasing cytarabine and daunorubicin within the intracellular environment.
PharmacodynamicsCardiac Electrophysiology
At the therapeutic exposures with the recommended dosing regimen, no large mean changes in the QTc interval (i.e., > 20 msecs) were observed. An exposure-QTc analysis suggested no concentration-dependent QTc interval prolongation.
PharmacokineticsThe pharmacokinetics of daunorubicin and cytarabine administered as Vyxeos were investigated in adult patients who received a dose of daunorubicin 44 mg/m2 and cytarabine 100 mg/m2 administered as a 90-minute intravenous infusion on days 1, 3, and 5. The pharmacokinetics of each drug was based on total plasma concentrations (i.e., encapsulated plus unencapsulated drug).
Following the dose administered on day 5, the mean (% coefficient of variation [CV]) maximum plasma concentration (Cmax) for daunorubicin was 26.0 (32.7%) mcg/mL and cytarabine was 62.2 (33.7%) mcg/mL. The mean (%CV) area under the curve (AUC) during one dosing interval for daunorubicin was 637 (38.4%) mcg∙h/mL and cytarabine was 1900 (44.3%) mcg∙h/mL.
The accumulation ratio was 1.3 for daunorubicin and 1.4 for cytarabine. There was no evidence of time-dependent kinetics or major departures from dose proportionality over the range of 1.3 mg/3 mg per m2to 59 mg/134 mg per m2 (0.03 to 1.3 times the approved recommended dosage).
Distribution
The volume of distribution (%CV) for daunorubicin is 6.6 L (36.8%) and cytarabine is 7.1 L (49.2%). Plasma protein binding was not evaluated.
Elimination
Vyxeos exhibits a prolonged half-life (%CV) of 31.5 h (28.5%) for daunorubicin and 40.4 h (24.2%) for cytarabine with greater than 99% of the daunorubicin and cytarabine in the plasma remaining encapsulated within the liposomes. The clearance (%CV) is 0.16 L/h (53.3%) for daunorubicin and 0.13 L/h (60.2%) for cytarabine.
Metabolism
Subsequent to release from Vyxeos liposomes, daunorubicin is catalyzed by aldoketo reductase and carbonyl reductase enzymes to the active metabolite daunorubicinol. Cytarabine is metabolized by cytidine deaminase to the inactive metabolite 1-β-D-arabinofuranosyluracil (AraU).
Excretion
Urinary excretion of daunorubicin and daunorubicinol accounts for 9% of the administered dose of daunorubicin, and urinary excretion of cytarabine and AraU accounts for 71% of the administered dose of cytarabine.
Specific Populations
Age, sex, race, body weight, body mass index, and white blood cell count do not have a clinically important effect on the exposure of total daunorubicin or cytarabine after adjusting dose by body surface area.
Patients with Renal Impairment
The pharmacokinetics of total daunorubicin and cytarabine were not clinically significantly altered in patients with mild or moderate renal impairment (CLCR 30 mL/min to 89 mL/min, as estimated by C-G). The potential effects of severe renal impairment (CLCR 15 mL/min to 29 mL/min, C-G) and end-stage renal disease on the pharmacokinetics of daunorubicin and cytarabine administered as Vyxeos are unknown.
Patients with Hepatic Impairment
The pharmacokinetics of total cytarabine and daunorubicin were not altered in patients with bilirubin less than and equal to 3 mg/dL. The pharmacokinetics in patients with bilirubin greater than 3 mg/dL is unknown.
Nonclinical ToxicologyCarcinogenesis, Mutagenesis, Impairment of FertilityCarcinogenicity, mutagenicity, and impairment of fertility studies with (daunorubicin and cytarabine) liposome for injection have not been conducted.
Carcinogenicity and mutagenicity studies have been conducted with daunorubicin. Published literature reported data that suggest daunorubicin (5 mg/kg) could be tumorigenic in rats at 0.68 times the recommended human dose on an mg/m2 basis. A high incidence of mammary tumors was observed about 120 days after a single intravenous dose of 12.5 mg/kg daunorubicin in rats (about 1.7 times the recommended human dose on an mg/m2 basis). A carcinogenic evaluation of daunorubicin by the IARC Working Group classified daunorubicin as a possible human carcinogen based on sufficient evidence in animals and inadequate data in humans. Daunorubicin was mutagenic in in vitro tests (Ames assay, V79 hamster cell assay), and clastogenic in in vitro (CCRF-CEM human lymphoblasts) and in in vivo (SCE assay in mouse bone marrow) tests.
Daunorubicin intravenous doses of 0.25 mg/kg/day (about 0.12 times the recommended human dose on a mg/m2 basis) in male dogs caused testicular atrophy and total aplasia of spermatocytes in the seminiferous tubules.
Cytarabine was mutagenic in in vitro tests and was clastogenic in vitro (chromosome aberrations and SCE in human leukocytes) and in vivo (chromosome aberrations and SCE assay in rodent bone marrow, mouse micronucleus assay). Cytarabine caused the transformation of hamster embryo cells and rat H43 cells in vitro.
No studies assessing the impact of cytarabine on fertility are available in the literature. Cytarabine was clastogenic to meiotic cells; a dose-dependent increase in sperm-head abnormalities and chromosomal aberrations occurred in mice given IP cytarabine.
Clinical StudiesStudy 1
Study 1 (NCT01696084) was a randomized, multicenter, open-label, active-controlled study which compared Vyxeos to a standard combination of cytarabine and daunorubicin (7+3) in patients 60 to 75 years of age with newly diagnosed t-AML or AML-MRC. The patients were randomized (1:1) and stratified by age and AML sub-type to receive Vyxeos or 7+3 for induction and consolidation. Vyxeos (daunorubicin 44 mg/m2 and cytarabine 100 mg/m2) liposome was given intravenously on days 1, 3, and 5 for the first induction and on days 1 and 3 for the second induction if needed. For consolidation, the Vyxeos dose was (daunorubicin 29 mg/m2 and cytarabine 65 mg/m2) liposome on days 1 and 3. In the 7+3 arm, first induction consisted of cytarabine 100 mg/m2/day on days 1 through 7 by continuous infusion and daunorubicin 60 mg/m2/day on days 1, 2, and 3; for second induction and consolidation cycles, cytarabine 100 mg/m2/day was given on days 1 through 5 and daunorubicin 60 mg/m2/day on days 1 and 2. Patients could receive up to 2 cycles of induction and 2 cycles of consolidation in each arm. A second induction was highly recommended for patients who did not achieve a response and was mandatory for patients achieving greater than 50% reduction in percent blasts. Post remission therapy with hematopoietic stem cell transplantation (HSCT) was permitted either in place of or after consolidation chemotherapy.
There were 153 patients randomized to Vyxeos and 156 patients randomized to the 7+3 control arm. The randomized patients had a median age of 68 (range, 60-75 years), 61% were male, and 88% had an ECOG performance status of 0–1. Twenty percent had t-AML, 54% had AML with an antecedent hematological disorder, and 25% had de novo AML with myelodysplasia-related cytogenetic abnormalities. Thirty-four percent had been treated previously with a hypomethylating agent for MDS. Fifty-four percent of patients with cytogenetics data had an adverse karyotype. The demographic and baseline disease characteristics were generally balanced between the study arms. FLT3 mutation was identified in 15% (43/279) of patients tested, and NPM1 mutation was identified in 9% (25/283) patients tested.
All patients on the Vyxeos arm and 97% of those on the control arm received at least 1 cycle of induction, and 32% on the Vyxeos arm and 21% on the control arm received at least 1 cycle of consolidation. The rate of HSCT in first CR was 20% in the Vyxeos arm and 12% in the control arm; the overall rate of HSCT (induction failure, first CR, or as salvage after relapse) was 34% (52/153) in the Vyxeos arm and 25% (39/156) on the control arm.
Efficacy was established on the basis of overall survival from the date of randomization to death from any cause. Vyxeos demonstrated superiority in overall survival compared with the 7+3 control (Figure 1). The efficacy results are shown in Table 6.
Figure 1: Kaplan-Meier Curve for Overall Survival, ITT Population
Table 6: Efficacy Results for Study 1 |
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Vyxeos N=153 |
7+3 N=156 |
Overall Survival |
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Median survival, months (95% CI) |
9.6 (6.6, 11.9) |
5.9 (5.0, 7.8) |
Hazard ratio (95% CI) |
0.69 (0.52, 0.90) |
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p–value (2–sided) a |
0.005 |
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Complete Response Rate |
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CR, n (%) |
58 (38) |
41 (26) |
p-value (2–sided) b |
0.036 |
Abbreviations: CI = Confidence interval; CR = Complete Remission
a p-value from stratified log rank test stratifying by age and AML sub-type
b p-value from Mantel-Haenszel test stratifying by age and AML sub-type
1. OSHA Hazardous Drugs. OSHA. [Accessed on 15 June 2017, from http://www.osha.gov/SLTC/hazardousdrugs/index.html.]
How Supplied/Storage and HandlingHow Supplied
Vyxeos (daunorubicin and cytarabine) liposome for injection is supplied as a sterile, preservative-free, purple, lyophilized cake, in a single-dose vial. Each Vyxeos vial (NDC 68727-745-01) contains 44 mg daunorubicin and 100 mg cytarabine.
NDC 68727-745-02: Carton containing 2 vials of Vyxeos
NDC 68727-745-05: Carton containing 5 vials of Vyxeos
Storage
Store unreconstituted Vyxeos vials in a refrigerator at 2°C to 8°C (36°F to 46°F) in an upright position. The vial should be stored in its original carton to protect from light.
Handling and Disposal
Vyxeos is a cytotoxic drug. Follow applicable special handling and disposal procedures.1
Patient Counseling InformationHemorrhage
Inform patients of the risk of fatal bleeding. Advise patients of the need for periodic monitoring of blood counts and of the importance of keeping scheduled appointments for blood work and necessary transfusions. Advise patients to contact a healthcare provider for new onset fever or symptoms of infection or if they notice signs of bruising or bleeding [see Warnings and Precautions (5.2) and Adverse Reactions (6.1)].
Cardiotoxicity
Advise patients to contact their healthcare provider if they develop symptoms of heart failure [see Warnings and Precautions (5.3)].
Hypersensitivity Reactions
Inform patients of the risk of hypersensitivity reactions, including anaphylaxis. Describe the symptoms of hypersensitivity reactions, including anaphylaxis, and instruct the patient to seek medical attention immediately if they experience such symptoms [see Warnings and Precautions (5.4)].
Embryo-Fetal Toxicity
Vyxeos can cause fetal harm when administered during pregnancy. Advise females of reproductive potential to use effective contraception during treatment and for 6 months following the last dose of Vyxeos and to inform their healthcare provider of a known or suspected pregnancy before and during treatment with Vyxeos [see Warnings and Precautions (5.7) and Use in Specific Populations (8.1)and (8.3)].
Lactation
Advise patients not to breastfeed during treatment with Vyxeos and for at least 2 weeks after the last dose [see Use in Specific Populations (8.2)].
Infertility
Advise males of reproductive potential that Vyxeos may cause temporary or permanent infertility [see Use in Specific Populations (8.3)].
Concomitant Medications
Advise patients to speak with their physicians about any other medication they are currently taking [see Drug Interactions (7)].
This product's label may have been updated. For full prescribing information, please visit labels.fda.gov.
Distributed by:
Jazz Pharmaceuticals, Inc.
Palo Alto, CA 94304
Protected by U.S. Patent Nos. 7,238,367; 7,744,921; 7,850,990; 8,022,279; 8,092,828; 8,431,806; 8,518,437; and 9,271,931
Vyxeos™ is a trademark of Jazz Pharmaceuticals plc or its subsidiaries.
© 2017 Jazz Pharmaceuticals
PACKAGE/LABEL DISPLAY PANEL
Vyxeos (daunorubicin and cytarabine) liposome injection, powder, lyophilized, for suspension |
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Labeler - Jazz Pharmaceuticals, Inc. (135926363) |
Establishment |
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Name |
Address |
ID/FEI |
Operations |
Jazz Pharmaceuticals, Inc. |
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135926363 |
MANUFACTURE(68727-745) |
Jazz Pharmaceuticals, Inc.