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盐酸丙卡巴肼胶囊|MATULANE(procarbazine hydrochloride Capsules)

2012-08-10 07:42:47  作者:新特药房  来源:中国新特药网天津分站  浏览次数:336  文字大小:【】【】【
简介: 英文药名: Matulane(Procarbazine Hydrochloride) 中文药名: 甲基苄肼,甲苄肼,丙卡巴肼,异丙胺酰苄肼胶囊药品介绍英文药名: Matulane (Procarbazine Hydrochloride)中文药名: 甲基苄肼,甲苄肼,丙卡巴肼 ...

英文药名: MATULANE(procarbazine hydrochloride Capsules)

中文药名: 盐酸丙卡巴肼胶囊

生产厂家:Sigma-Tau制药
药品介绍
英文药名: Matulane (Procarbazine Hydrochloride)
中文药名: 甲基苄肼,甲苄肼,丙卡巴肼,异丙胺酰苄肼胶囊
药品简介:
甲基苄肼
[中文别名] 甲苄肼,丙卡巴肼,异丙胺酰苄肼。
[外 文 名] Procarbazine,Natulan,Matulane,Ibenzmethyzin.
[外文缩写] PCB,PCZ,MZH。
[化 学 名] N-异丙基-a(2-甲基肼)-对-甲苯酰。
[分 子 式] C12H19N3O。
[性 状] 常用其盐酸盐,为白色或灰黄色结晶性粉末,性质较稳定;易溶于水,但水溶液不稳定,易自身氧化为偶氮化合物、H2O3及O2。
药理作用:
本品为细胞周期非特异性药物。进入人体后自身氧化形成H2O2和OH-,可引起类似电离幅射作用,特别使鸟嘌呤的第3位和腺嘌呤的第1位上发生甲基化,抑制RNA、DNA及蛋白质的合成。对G1/S期有延缓作用,抑制细胞的有丝分裂,使分裂指数明显下降,G1-G2间期延长。本品与烷化剂、长春新碱、皮质激素类及放射治疗无交叉耐药性。药理研究发现,本品有使染色体紊乱、致畸胎、致癌、抑制免疫及细胞毒作用等多种生物学效应。
体内过程:
本品口服吸收快而完全,血浆半衰期为7~10分钟,吸收后迅速分布致各组织,肝肾中浓度最高,可进入脑脊液。在体内通过红细胞及肝微粒体酶的作用氧化,并进一步代谢为无活性的代谢物。本品主要从尿中排泄,6小时为55%,24小时为70%,仅5%为原形药;30%的药物以CO2形式从呼吸道排出。
临床应用:
(1)主要用于霍奇金病,有1/3-1/2的病人能获得完全缓解,缓解期为3周-6个月或更长,常联合用药,如MOPP方案。
(2)对恶性淋巴瘤、多发性骨髓瘤、肺癌亦有一定疗效。
(3)对网织细胞瘤、淋巴肉瘤、原发性及转移性脑瘤、慢性淋巴细胞白血病、恶性黑色素瘤等均有一定疗效。
用法用量:
口服:成人每日150-200mg,分3-4次;或每次150-200mg,睡前顿服;总量7~9g为1疗程。
静脉注射:每次2-7mg/kg,从较低剂量开始逐渐增加,总量以7~10g为1疗程。
不良反应:
(1)骨髓抑制:白细胞下降,血小板减少,贫血等,常见于用药后2~8周内,停药后2~3周可恢复。
(2)胃肠道反应:恶心,呕吐,食欲不振,口干,口炎;日剂量超过200mg时,反应较明显。
(3)中枢神经毒性:头痛、乏力、眩晕、不安、失眠、神经错乱、脑电图不正常。
(4)周围神经毒性:可能出现下肢感觉异常,深反射消失,麻痹等。
(5)其他反应:皮下出血、紫癜、鼻衄、黑便、溶血性贫血、脱发、皮炎、色素沉着,偶见肝功能异常。
禁忌:
(1)孕妇及严重骨髓抑制、肝肾损害者禁用。
(2)糖尿病、感染或用过其他化疗药物的患者慎用。
(3)出血、过敏、口腔炎及用过安眠药、麻醉药的患者慎用。
注意事项:
(1)本品与中枢神经系统抑制药或抗高血压药联合应用可增加这两种药物的治疗作用。
(2)本品有单胺氧化酶抑制作用,避免与麻黄素、苯丙胺、间羟胺、苯丙醇胺等拟交感药以及丙咪嗪、阿米替林合用,以免高血压病患者的血压上升和过度兴奋。用药期间凡含有高酷胺成分的食物,如乳酪、香蕉等均不宜食用,酒类亦宜少用。
(3)胰岛素、降糖灵、利他林、硫喷妥钠等可使本品作用延长并增强。
(4)本品与氮芥合用可产生神经毒性。
(5)少数年轻妇女用药可致闭经,停药后可恢复。


DESCRIPTION
Matulane (procarbazine hydrochloride), a hydrazine derivative antineoplastic agent, is available as capsules containing the equivalent of 50 mg procarbazine as the hydrochloride. Each capsule also contains cornstarch, mannitol and talc. Gelatin capsule shells contain parabens (methyl and propyl), potassium sorbate, titanium dioxide, FD&C Yellow No. 6 and D&C Yellow No. 10.
Chemically, procarbazine hydrochloride is N-isopropyl-α-(2-methylhydrazino)-p-toluamide monohydrochloride. It is a white to pale yellow crystalline powder which is soluble but unstable in water or aqueous solutions. The molecular weight of procarbazine hydrochloride is 257.76 and the structural formula is:

CLINICAL PHARMACOLOGY
The precise mode of cytotoxic action of procarbazine has not been clearly defined. There is evidence that the drug may act by inhibition of protein, RNA and DNA synthesis. Studies have suggested that procarbazine may inhibit transmethylation of methyl groups of methionine into t-RNA. The absence of functional t-RNA could cause the cessation of protein synthesis and consequently DNA and RNA synthesis. In addition, procarbazine may directly damage DNA. Hydrogen peroxide, formed during the auto-oxidation of the drug, may attack protein sulfhydryl groups contained in residual protein which is tightly bound to DNA.
Procarbazine is metabolized primarily in the liver and kidneys. The drug appears to be auto-oxidized to the azo derivative with the release of hydrogen peroxide. The azo derivative isomerizes to the hydrazone, and following hydrolysis splits into a benzylaldehyde derivative and methylhydrazine. The methylhydrazine is further degraded to CO2 and CH4 and possibly hydrazine, whereas the aldehyde is oxidized to N-isopropylterephthalamic acid, which is excreted in the urine.
Procarbazine is rapidly and completely absorbed. Following oral administration of 30 mg of 14C-labeled procarbazine, maximum peak plasma radioactive concentrations were reached within 60 minutes.
After intravenous injection, the plasma half-life of procarbazine is approximately 10 minutes. Approximately 70% of the radioactivity is excreted in the urine as N-isopropylterephthalamic acid within 24 hours following both oral and intravenous administration of 14C-labeled procarbazine.
Procarbazine crosses the blood-brain barrier and rapidly equilibrates between plasma and cerebrospinal fluid after oral administration.
INDICATIONS AND USAGE
Matulane is indicated for use in combination with other anticancer drugs for the treatment of Stage III and IV Hodgkin's disease. Matulane is used as part of the MOPP (nitrogen mustard, vincristine, procarbazine, prednisone) regimen.
CONTRAINDICATIONS
Matulane is contraindicated in patients with known hypersensitivity to the drug or inadequate marrow reserve as demonstrated by bone marrow aspiration. Due consideration of this possible state should be given to each patient who has leukopenia, thrombocytopenia or anemia.
WARNINGS
To minimize CNS depression and possible potentiation, barbiturates, antihistamines, narcotics, hypotensive agents or phenothiazines should be used with caution. Ethyl alcohol should not be used since there may be an Antabuse (disulfiram)-like reaction. Because Matulane exhibits some monoamine oxidase inhibitory activity, sympathomimetic drugs, tricyclic antidepressant drugs (eg, amitriptyline HCI, imipramine HCI) and other drugs and foods with known high tyramine content, such as wine, yogurt, ripe cheese and bananas, should be avoided. A further phenomenon of toxicity common to many hydrazine derivatives is hemolysis and the appearance of Heinz-Ehrlich inclusion bodies in erythrocytes.
Pregnancy
Teratogenic Effects
Pregnancy Category D. Procarbazine hydrochloride can cause fetal harm when administered to a pregnant woman. While there are no adequate and well-controlled studies with procarbazine hydrochloride in pregnant women, there are case reports of malformations in the offspring of women who were exposed to procarbazine hydrochloride in combination with other antineoplastic agents during pregnancy. Matulane should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. If this drug is used during pregnancy, or if the patient becomes pregnant while taking this drug, the patient should be apprised of the potential hazard to the fetus. Women of childbearing potential should be advised to avoid becoming pregnant. Procarbazine hydrochloride is teratogenic in the rat when given at doses approximately 4 to 13 times the maximum recommended human therapeutic dose of 6 mg/kg/day.
Nonteratogenic Effects
Procarbazine hydrochloride has not been adequately studied in animals for its effects on peri- and postnatal development. However, neurogenic tumors were noted in the offspring of rats given intravenous injections of 125 mg/kg of procarbazine hydrochloride on day 22 of gestation. Compounds which inhibit DNA, RNA and protein synthesis might be expected to have adverse effects on peri- and postnatal development.
Carcinogenesis, Mutagenesis, Impairment of Fertility
Carcinogenesis
The carcinogenicity of procarbazine hydrochloride in mice, rats and monkeys has been reported in a considerable number of studies. Instances of a second nonlymphoid malignancy, including lung cancer and acute myelocytic leukemia, have been reported in patients with Hodgkin's disease treated with procarbazine in combination with other chemotherapy and/or radiation. The risks of secondary lung cancer from treatment appear to be multiplied by tobacco use. The International Agency for Research on Cancer (IARC) considers that there is “sufficient evidence” for the human carcinogenicity of procarbazine hydrochloride when it is given in intensive regimens which include other antineoplastic agents but that there is inadequate evidence of carcinogenicity in humans given procarbazine hydrochloride alone.
Mutagenesis
Procarbazine hydrochloride has been shown to be mutagenic in a variety of bacterial and mammalian test systems.
Impairment of Fertility
Azoospermia and antifertility effects associated with procarbazine hydrochloride administration in combination with other chemotherapeutic agents for treating Hodgkin's disease have been reported in human clinical studies. Since these patients received multicombination therapy, it is difficult to determine to what extent procarbazine hydrochloride alone was involved in the male germ-cell damage. The usual Segment I fertility/reproduction studies in laboratory animals have not been carried out with procarbazine hydrochloride. However, compounds which inhibit DNA, RNA and/or protein synthesis might be expected to have adverse effects on gametogenesis. Unscheduled DNA synthesis in the testis of rabbits and decreased fertility in male mice treated with procarbazine hydrochloride have been reported.
PRECAUTIONS
GeneralUndue toxicity may occur if Matulane is used in patients with impairment of renal and/or hepatic function. When appropriate, hospitalization for the initial course of treatment should be considered.
If radiation or a chemotherapeutic agent known to have marrow-depressant activity has been used, an interval of one month or longer without such therapy is recommended before starting treatment with Matulane. The length of this interval may also be determined by evidence of bone marrow recovery based on successive bone marrow studies.
Prompt cessation of therapy is recommended if any one of the following occurs:
Central nervous system signs or symptoms such as paresthesias, neuropathies or confusion.
Leukopenia (white blood count under 4000).
Thrombocytopenia (platelets under 100,000).
Hypersensitivity reaction.
Stomatitis - The first small ulceration or persistent spot soreness around the oral cavity is a signal for cessation of therapy.
Diarrhea - Frequent bowel movements or watery stools.
Hemorrhage or bleeding tendencies.
Bone marrow depression often occurs 2 to 8 weeks after the start of treatment. If leukopenia occurs, hospitalization of the patient may be needed for appropriate treatment to prevent systemic infection.
Information for PatientsPatients should be warned not to drink alcoholic beverages while on Matulane therapy since there may be an Antabuse (disulfiram)-like reaction. They should also be cautioned to avoid foods with known high tyramine content such as wine, yogurt, ripe cheese and bananas. Over-the-counter drug preparations which contain antihistamines or sympathomimetic drugs should also be avoided. Patients taking Matulane should also be warned against the use of prescription drugs without the knowledge and consent of their physician. Patients should be advised to discontinue tobacco use.
Laboratory TestsBaseline laboratory data should be obtained prior to initiation of therapy. The hematologic status as indicated by hemoglobin, hematocrit, white blood count (WBC), differential, reticulocytes and platelets should be monitored closely - at least every 3 or 4 days.
Hepatic and renal evaluation are indicated prior to beginning therapy. Urinalysis, transaminase, alkaline phosphatase and blood urea nitrogen tests should be repeated at least weekly.
Drug InteractionsSee WARNINGS section.
No cross-resistance with other chemotherapeutic agents, radiotherapy or steroids has been demonstrated.
Carcinogenesis, Mutagenesis, Impairment of FertilitySee WARNINGS section.
PregnancyPregnancy Category D. See WARNINGS section.
Nursing MothersIt is not known whether Matulane is excreted in human milk. Because of the potential for tumorigenicity shown for procarbazine hydrochloride in animal studies, mothers should not nurse while receiving this drug.
Pediatric UseUndue toxicity, evidenced by tremors, coma and convulsions, has occurred in a few cases. Dosage, therefore, should be individualized (see DOSAGE AND ADMINISTRATION). Very close clinical monitoring is mandatory.
ADVERSE REACTIONS
Leukopenia, anemia and thrombopenia occur frequently. Nausea and vomiting are the most commonly reported side effects.
Other adverse reactions are:
Hematologic
Pancytopenia; eosinophilia; hemolytic anemia; bleeding tendencies such as petechiae, purpura, epistaxis and hemoptysis.
Gastrointestinal
Hepatic dysfunction, jaundice, stomatitis, hematemesis, melena, diarrhea, dysphagia, anorexia, abdominal pain, constipation, dry mouth.
Neurologic
Coma, convulsions, neuropathy, ataxia, paresthesia, nystagmus, diminished reflexes, falling, foot drop, headache, dizziness, unsteadiness.
Cardiovascular
Hypotension, tachycardia, syncope.
Ophthalmic
Retinal hemorrhage, papilledema, photophobia, diplopia, inability to focus.
Respiratory
Pneumonitis, pleural effusion, cough.
Dermatologic
Herpes, dermatitis, pruritus, alopecia, hyperpigmentation, rash, urticaria, flushing.
Allergic
Generalized allergic reactions.
Genitourinary
Hematuria, urinary frequency, nocturia.
Musculoskeletal
Pain, including myalgia and arthralgia; tremors.
Psychiatric
Hallucinations, depression, apprehension, nervousness, confusion, nightmares.
Endocrine
Gynecomastia in prepubertal and early pubertal boys.
Miscellaneous
Intercurrent infections, hearing loss, pyrexia, diaphoresis, lethargy, weakness, fatigue, edema, chills, insomnia, slurred speech, hoarseness, drowsiness.
Second nonlymphoid malignancies (including lung cancer, acute myelocytic leukemia and malignant myelosclerosis) and azoospermia have been reported in patients with Hodgkin's disease treated with procarbazine in combination with other chemotherapy and/or radiation. The risks of secondary lung cancer from treatment appear to be multiplied by tobacco use.
OVERDOSAGE
The major manifestations of overdosage with Matulane would be anticipated to be nausea, vomiting, enteritis, diarrhea, hypotension, tremors, convulsions and coma. Treatment should consist of either the administration of an emetic or gastric lavage. General supportive measures such as intravenous fluids are advised. Since the major toxicity of procarbazine hydrochloride is hematologic and hepatic, patients should have frequent complete blood counts and liver function tests throughout their period of recovery and for a minimum of two weeks thereafter. Should abnormalities appear in any of these determinations, appropriate measures for correction and stabilization should be immediately undertaken.
The estimated mean lethal dose of procarbazine hydrochloride in laboratory animals varied from approximately 150 mg/kg in rabbits to 1300 mg/kg in mice.
DOSAGE AND ADMINISTRATION
The following doses are for administration of the drug as a single agent. When used in combination with other anticancer drugs, the Matulane dose should be appropriately reduced, eg, in the MOPP regimen, the Matulane dose is 100 mg/m2 daily for 14 days. All dosages are based on the patient's actual weight. However, the estimated lean body mass (dry weight) is used if the patient is obese or if there has been a spurious weight gain due to edema, ascites or other forms of abnormal fluid retention.
Adults: To minimize the nausea and vomiting experienced by a high percentage of patients beginning Matulane therapy, single or divided doses of 2 to 4 mg/kg/day for the first week are recommended. Daily dosage should then be maintained at 4 to 6 mg/kg/day until maximum response is obtained or until the white blood count falls below 4000/cmm or the platelets fall below 100,000/cmm. When maximum response is obtained, the dose may be maintained at 1 to 2 mg/kg/day. Upon evidence of hematologic or other toxicity (see PRECAUTIONS section), the drug should be discontinued until there has been satisfactory recovery. After toxic side effects have subsided, therapy may then be resumed at the discretion of the physician, based on clinical evaluation and appropriate laboratory studies, at a dosage of 1 to 2 mg/kg/day.
Pediatric Patients: Very close clinical monitoring is mandatory. Undue toxicity, evidenced by tremors, coma and convulsions, has occurred in a few cases. Dosage, therefore, should be individualized. The following dosage schedule is provided as a guideline only.
Fifty (50) mg per square meter of body surface per day is recommended for the first week. Dosage should then be maintained at 100 mg per square meter of body surface per day until maximum response is obtained or until leukopenia or thrombocytopenia occurs. When maximum response is attained, the dose may be maintained at 50 mg per square meter of body surface per day. Upon evidence of hematologic or other toxicity (see PRECAUTIONS section), the drug should be discontinued until there has been satisfactory recovery, based on clinical evaluation and appropriate laboratory tests. After toxic side effects have subsided, therapy may then be resumed.
Procedures for proper handling and disposal of anticancer drugs should be considered. Several guidelines on this subject have been published.1-6 There is no general agreement that all of the procedures recommended in the guidelines are necessary or appropriate.
HOW SUPPLIED
Capsules, ivory, containing the equivalent of 50 mg procarbazine as the hydrochloride; in bottles of 100 (NDC 54482-053-01). Imprint on capsules: MATULANE σ sigma-tau.
------------------------------------------------------------
产地国家:美国
原产地英文药品名:
PROCARBAZINE HCL
中文参考药品译名:
甲基苄肼
原产地英文商品名:
MATULANE 50mg/cap 100caps/box
中文参考商品译名:
MATULANE 50毫克/胶囊 100胶囊/盒
生产厂家英文名:
Sigma-Tau制药
生产厂家中文参考译名:
Sigma-Tau
该药品相关信息网址1:
https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=de1c8271-64d8-4ea5-85e8-871faa4d7632

责任编辑:admin


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