다카바진

그림문자(GHS)

• 그림문자(GHS)

  

• 신호 어

  Danger

• 유해·위험 문구

  H315：피부에 자극을 일으킴

  H319：눈에 심한 자극을 일으킴

  H335：호흡 자극성을 일으킬 수 있음

  H340：유전적인 결함을 일으킬 수 있음 (노출되어도 생식세포 유전독성을 일으키지 않는다는 결정적인 증거가 있는 노출경로가 있다면 노출경로 기재)

  H350：암을 일으킬 수 있음 (노출되어도 암을 일으키지 않는다는 결정적인 증거가 있는 노출경로가 있다면 노출경로 기재)

• 예방조치문구

  P201：사용 전 취급 설명서를 확보하시오.

  P261：분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.

  P280：보호장갑/보호의/보안경/안면보호구를 착용하시오.

  P305+P351+P338：눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.

  P308+P313：노출 또는 접촉이 우려되면 의학적인 조치· 조언를 구하시오.

다카바진 MSDS

• 4-(Dimethyltriazeno)imidazole-5-carboxamide

다카바진 화학적 특성, 용도, 생산

• 개요

  Dacarbazine is nevertheless considered the first representative of the series of triazene derivatives. It has been shown that it is an alkylating agent, and thus this drug inhibits RNA and protein synthesis to a greater degree than DNA. Dacarbazine is used intravenously for Hodgkin’s disease, soft-tissue sarcoma, and metastatic melanoma. A synonym of this drug is diticene.

• 화학적 성질

  Dacarbazine is a white to ivory-colored crystalline solid.

• 용도

  Dacarbazine is used as an antineoplastic for treatment of malignant melanoma and sarcomas.

• 정의

  ChEBI: A monocarboxylic acid amide that is 1H-imidazole-4-carboxamide which is substituted at position 5 by a 3,3-dimethyltriaz-1-en-1-yl group. It is used for the treatment of metastatic malignant melanoma, and in combination with other drugs or the treatment of Hodgkin's disease and soft-tissue sarcoma.

• Indications

  Dacarbazine (DTIC-Dome) is activated by photodecomposition and by enzymatic N-demethylation. Eventual formation of a methyl carbonium ion results in methylation of DNA and RNA and inhibition of nucleic acid and protein synthesis. As with other alkylating agents, cells in all phases of the cell cycle are susceptible to dacarbazine.
  The plasma half-life of dacarbazine is biphasic, with a distribution phase of 19 minutes and an elimination phase of 5 hours. The drug is not appreciably protein bound, and it does not enter the central nervous system (CNS). Urinary excretion of unchanged drug is by renal tubular secretion. Dacarbazine metabolism and decomposition is complex.
  Dacarbazine is the most active agent used in metastatic melanoma, producing a 20% remission rate. It is also combined with doxorubicin and other agents in the treatment of various sarcomas and Hodgkin’s disease.
  Dacarbazine may cause severe nausea and vomiting. Leukopenia and thrombocytopenia occur 2 weeks after treatment, with recovery by 3 to 4 weeks. Less common is a flulike syndrome of fever, myalgias, and malaise. Alopecia and transient abnormalities in renal and hepatic function also have been reported.

• 일반 설명

  Dacarbazine is available in 100- and 200-mg vials for IVadministration in the treatment of Hodgkin’s disease, malignantmelanoma, carcinoid cancer, neuroblastoma, andsoft tissue sarcoma. Resistance to dacarbazine has been primarilyattributed to enhanced activity of AGAT. The volumeof distribution exceeds the amount of water in thebody suggesting the compound distributes into body tissuespossibly the liver. The agent is not highly protein bound(20%) and is metabolized in the liver by CYP to give MTICand 4-amino-5-imidazole-carboxamide (AIC).Thedemethylation reaction is mediated by isozymes CYP1A1/2and CYP2E1. Elimination occurs via the urine with 40% to50% occurring as unchanged drug. Dose-limiting myelosuppressionpresents as both leucopenia and thrombocytopenia.Other adverse effects include nausea, vomiting,flulike symptoms, photosensitivity, and pain at the injectionsite.

• 공기와 물의 반응

  Insoluble in water.

• 반응 프로필

  Dacarbazine decomposes explosively at its melting point (250°C). Decomposes in the presence of light. Sensitive to oxidation.

• 화재위험

  Flash point data for Dacarbazine are not available. Dacarbazine is probably combustible.

• Clinical Use

  This DNA methylating agent is administered IV as a single agent in the treatment of malignant melanoma and in combination with other agents in the treatment of metastatic melanoma.

• 부작용

  Approximately 40% of the drug is excreted unchanged, but both the 5-aminoimidazole-4-carboxamide (AIC, formed through the action of CYP1A enzymes) and the carboxylic acid (AIC hydrolysis product) are major urinary metabolites. Leukopenia and thrombocytopenia are the most common side effects and may be fatal. Patients also are at risk for hepatotoxicity, including hepatocellular necrosis.

• Safety Profile

  Confirmed carcinogen with experimental carcinogenic and tumorigenic data. Poison by intraperitoneal and parenteral routes. Moderately toxic by ingestion and intravenous routes. Experimental teratogenic effects. Human systemic effects by intravenous route: nausea or vomiting, leukopenia (reduced white blood cell count), and changes in dehydrogenase enzymatic activity. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx.

• 잠재적 노출

  Dacarbazine is used in cancer chemo- therapy. Dacarbazine is used as an antineoplastic agent in the treatment of certain skin cancers, and is occasionally used in the therapy of other neoplastic diseases which have become resistant to alternative treatment.br Health professionals who handle this drug (for example, pharmacists, nurses, and physicians) may possibly be exposed during drug preparation, administration, or cleanup; however, the risks can be avoided through use of appropriate containment equipment and work practices .People receiving dacarbazine in treatment are also exposed.

• 환경귀착

  The exact mechanism of action of dacarbazine is unknown; however, several proposed mechanisms have been made including inhibition of DNA synthesis by acting as a purine analog, alkylating agent, and interference with sulfhydryl groups. It is most commonly classified as an alkylating agent in the triazene group. While the active compound of dacarbazine, DTIC, is structurally similar to purines, its primary mechanism of action precludes the agent from being classified as an antimetabolite. Dacarbazine is a synthetic compound that is metabolically activated to the active alkylating metabolite methyl-triazeno-imidazole-carboxamide (MTIC) via the cytochrome P450 system, primarily CYP1A1, CYP1A2, and CYP 2E1. MTIC is rapidly tautomerized into an inactive derivative, 5-aminoimidazole-4-carboxamide (AIC), which is renally excreted. The entire process of activating DTIC occurs within 15 min of intravenous infusion. DTIC exerts its actions throughout all phases of the cellular cycle. The antitumor effects of this compound are related to the induction of methyl adducts to DNA. The 70% of alkylation occurs at the N₇ position of guanine. The cytotoxic and mutagenic effects of MTIC are manifested through alkylation of DNA at the O₆ guanine position, accounting for 6–8% of methylated bases formed. This is primarily a result of generation of incorrect base pairing, leading to DNA double strand breaks and apoptosis.

• 운송 방법

  UN3249 Medicine, solid, toxic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials.

• 비 호환성

  ncompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explo- sions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, and epoxides. Explosive decom- position reported @ 250℃ 255℃

• 폐기물 처리

  It is inappropriate and possi- bly dangerous to the environment to dispose of expired or waste drugs and pharmaceuticals by flushing them down the toilet or discarding them to the trash. Household quanti- ties of expired or waste pharmaceuticals may be mixed with wet cat litter or coffee grounds, double-bagged in plastic, discard in trash. Larger quantities shall carefully take into consideration applicable DEA, EPA, and FDA regulations. If possible return the pharmaceutical to the manufacturer for proper disposal being careful to properly label and securely package the material. Alternatively, the waste pharmaceutical shall be labeled, securely packaged and transported by a state licensed medical waste contractor to dispose by burial in a licensed hazardous or toxic waste landfill or incinerator.

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