Source:http://www4.wiwiss.fu-berlin.de/dailymed/resource/drugs/2403
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Daunoxome (Injection, Lipid Complex)
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DaunoXome should be administered intravenously over a 60 minute period at a dose of 40 mg/m, with doses repeated every two weeks. Blood counts should be repeated prior to each dose, and therapy withheld if the absolute granulocyte count is less than 750 cells/mm. Treatment should be continued until there is evidence of progressive disease (e.g., based on best response achieved: new visceral sites of involvement, or progression of visceral disease; development of 10 or more new, cutaneous lesions or a 25% increase in the number of lesions compared to baseline; a change in the character of 25% or more of all previously counted flat lesions to raised; increase in surface area of the indicator lesions), or until other intercurrent complications of HIV disease preclude continuation of therapy.<br/>Patients with Impaired Hepatic and Renal Function: Limited clinical experience exists in treating hepatically and renally impaired patients with DaunoXome. Therefore, based on experience with daunorubicin HCl, it is recommended that the dosage of DaunoXome be reduced if the bilirubin or creatinine is elevated as follows: Serum bilirubin 1.2 to 3 mg/dL, give��the normal dose; serum bilirubin or creatinine>3 mg/dL, give��the normal dose. Do not mix DaunoXome with other drugs.<br/>Preparation Of Solution: DaunoXome should be diluted 1:1 with 5% Dextrose Injection (D5W) before administration. Each vial of DaunoXome contains daunorubicin citrate equivalent to 50 mg daunorubicin base, at a concentration of 2 mg/mL. The recommended concentration after dilution is 1 mg daunorubicin/mL of solution.<br/>Use aseptic technique: Aseptic technique must be strictly observed in all handling, since no preservative or bacteriostatic agent is present in DaunoXome or in the materials recommended for dilution. Withdraw the calculated volume of DaunoXome from the vial into a sterile syringe, and transfer it into a sterile infusion bag containing an equivalent amount of D5W. Administer diluted DaunoXome immediately. If not used immediately, diluted DaunoXome should be refrigerated at 2�����8��C (36�����46��F) for a maximum of 6 hours. Caution: The only fluid which may be mixed with DaunoXome is D5W; DaunoXome must not be mixed with saline, bacteriostatic agents such as benzyl alcohol, or any other solution. Do not use an in-line filter for the intravenous infusion of DaunoXome. All parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. DaunoXome is a translucent dispersion of liposomes that scatters light to some degree. Do not use DaunoXome if it appears opaque, or has precipitate or foreign matter present. Procedures for proper handling and disposal of anticancer drugs should be followed.
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DaunoXome (daunorubicin citrate liposome injection) is a sterile, pyrogen-free, preservative-free product in a single use vial for intravenous infusion. DaunoXome contains an aqueous solution of the citrate salt of daunorubicin encapsulated within lipid vesicles (liposomes) composed of a lipid bilayer of distearoylphosphatidylcholine and cholesterol (2:1 molar ratio), with a mean diameter of about 45 nm. The lipid to drug weight ratio is 18.7:1 (total lipid:daunorubicin base), equivalent to a 10:5:1 molar ratio of distearoylphosphatidylcholine:cholesterol:daunorubicin. Daunorubicin is an anthracycline antibiotic with antineoplastic activity, originally obtained from Streptomyces peucetius. Daunorubicin has a 4-ring anthracycline moiety linked by a glycosidic bond to daunosamine, an amino sugar. Daunorubicin may also be isolated from Streptomyces coeruleorubidus and has the following chemical name: (8S-cis)-8-acetyl-10-[(3-amino-2,3,6-trideoxy-��-L-lyxo-hexopyranosyl)oxy]-7,8,9,10-tetrahydro-6,8,11-trihydroxy-1-methoxy-5,12-naphthacenedione hydrochloride. Daunorubicin citrate has the following chemical structure: DSPC (distearoylphosphatidylcholine) has the following chemical structure: The following represents the idealized, spherical morphology of a liposome: Note: Liposomal encapsulation can substantially affect a drug's functional properties relative to those of the unencapsulated drug. In addition, different liposomal drug products may vary from one another in the chemical composition and physical form of the liposomes. Such differences can substantially affect the functional properties of liposomal drug products. Each vial contains daunorubicin citrate equivalent to 50 mg of daunorubicin base, encapsulated in liposomes consisting of 704 mg distearoylphosphatidylcholine and 168 mg cholesterol. The liposomes encapsulating daunorubicin are dispersed in an aqueous medium containing 2,125 mg sucrose, 94 mg glycine, and 7 mg calcium chloride dihydrate in a total volume of 25 mL/vial. The pH of the dispersion is between 4.9 and 6.0. The liposome dispersion should appear red and translucent.
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Mechanism of Action: DaunoXome is a liposomal preparation of daunorubicin formulated to maximize the selectivity of daunorubicin for solid tumors in situ. While in the circulation, the DaunoXome formulation helps to protect the entrapped daunorubicin from chemical and enzymatic degradation, minimizes protein binding, and generally decreases uptake by normal (non-reticuloendothelial system) tissues. The specific mechanism by which DaunoXome is able to deliver daunorubicin to solid tumors in situ is not known. However, it is believed to be a function of increased permeability of the tumor neovasculature to some particles in the size range of DaunoXome. In animal studies, daunorubicin has been shown to accumulate in tumors to a greater extent when administered as DaunoXome than when administered as daunorubicin. Once within the tumor environment, daunorubicin is released over time enabling it to exert its antineoplastic activity.<br/>Pharmacokinetics: Following intravenous injection of DaunoXome, plasma clearance of daunorubicin shows monoexponential decline. The pharmacokinetic parameter values for total daunorubicin following a single 40 mg/mdose of DaunoXome administered over a 30���60 minute period to patients with AIDS-related Kaposi's sarcoma and following a single rapid intravenous, 80 mg/mdose of conventional daunorubicin to patients with disseminated solid malignancies are shown in Table I. The plasma pharmacokinetics of DaunoXome differ significantly from the results reported for conventional daunorubicin hydrochloride. DaunoXome has a small steady-state volume of distribution of 6.4 L, (probably because it is confined to vascular fluid volume), and clearance of 17 mL/min. These differences in the volume of distribution and clearance result in a higher daunorubicin exposure (in terms of plasmaAUC) from DaunoXome than with conventional daunorubicin hydrochloride. The apparent elimination half-life of DaunoXome (daunorubicin citrate liposome injection) is 4.4 hours, far shorter than that of daunorubicin, and probably represents a distribution half-life. Although preclinical biodistribution data in animals suggest that DaunoXome crosses the normal blood-brain barrier, it is unknown whether DaunoXome crosses the blood-brain barrier in humans.<br/>Metabolism: Daunorubicinol, the major active metabolite of daunorubicin, was detected at low levels in the plasma following intravenous administration of DaunoXome. No formal assessments of pharmacokinetic drug���drug interactions between DaunoXome and other agents have been conducted.<br/>Special Populations: The pharmacokinetics of DaunoXome have not been evaluated in women, in different ethnic groups, or in subjects with renal and hepatic insufficiency.
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Therapy with DaunoXome is contraindicated in patients who have experienced a serious hypersensitivity reaction to previous doses of DaunoXome or to any of its constituents.
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DaunoXome is a translucent, red, liposomal dispersion supplied in single use vials, each sealed with a synthetic rubber stopper and aluminum sealing ring with a plastic cap. DaunoXome provides daunorubicin citrate equivalent to 50 mg of daunorubicin base, at a concentration of 2 mg/mL. DaunoXome is supplied under NDC 61958-0301-1 for a single unit pack.<br/>Storage: Store DaunoXome in a refrigerator, 2�����8��C (36�����46��F). Do not freeze. Protect from light.<br/>U.S. PATENT NUMBERS: The United States Patent Numbers applicable to DaunoXome are: 5,441,745; 5,435,989; 5,019,369; 4,946,683; 4,753,788; and additional patents pending.
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WARNINGS:
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Drug Interactions: In the patient population studied, DaunoXome has been administered to patients receiving a variety of concomitant medications (e.g., antiretroviral agents, antiviral agents, anti-infective agents). Although interactions of DaunoXome (daunorubicin citrate liposome injection) with other drugs have not been observed, no systematic studies of interactions have been conducted.<br/>Carcinogenesis, Mutagenesis, and Impairment of Fertility: No carcinogenesis, mutagenesis, or impairment of fertility studies were conducted with DaunoXome. Carcinogenesis: Carcinogenicity and mutagenicity studies have been conducted with daunorubicin, the active component of DaunoXome. 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 2 times the human dose on a mg/mbasis). Mutagenesis: 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. Impairment of Fertility: Daunorubicin intravenous doses of 0.25 mg/kg/day (about 8 times the human dose on a mg/mbasis) in male dogs caused testicular atrophy and total aplasia of spermatocytes in the seminiferous tubules.<br/>Pregnancy: Pregnancy "Category D". See WARNINGS Section.<br/>Pediatric Use: Safety and effectiveness in pediatric patients have not been established.<br/>Use in the Elderly: Safety and effectiveness in the elderly have not been established.<br/>Special Populations: Safety has not been established in patients with pre-existing hepatic or renal dysfunction.
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The symptoms of acute overdosage are increased severities of the observed dose-limiting toxicities of therapeutic doses of DaunoXome, myelosuppression (especially granulocytopenia), fatigue, and nausea and vomiting.
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daunorubicin citrate
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Daunoxome (Injection, Lipid Complex)
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| dailymed-instance:adverseRe... |
DaunoXome contains daunorubicin, encapsulated within a liposome. Conventional daunorubicin has acute myelosuppression as its dose limiting side effect, with the greatest effect on the granulocytic series. In addition, daunorubicin causes alopecia, and nausea and vomiting in a significant number of patients treated. Extravasation of conventional daunorubicin can cause severe local tissue necrosis. Chronic therapy at total doses above 300 mg/mcauses a cumulative-dose-related cardiomyopathy with congestive heart failure. Administered as DaunoXome, daunorubicin has substantially altered pharmacokinetics and some differences in toxicity. The most important acute toxicity of DaunoXome remains myelosuppression, principally of the granulocytic series, with much less marked effects on the platelets and erythroid series. In an open-label, randomized, controlled clinical trial conducted in 13 centers in the U.S.A. and Canada in advanced HIV-related Kaposi's sarcoma, two treatment regimens were compared as first line cytotoxic therapy: DaunoXome and ABV (doxorubicin (Adriamycin), bleomycin, and vincristine). All drugs were administered intravenously every 2 weeks. The safety data presented below include all reported or observed adverse experiences, including those not considered to be drug related. Patients with advanced HIV-associated Kaposi's sarcoma are seriously ill due to their underlying infection and are receiving several concomitant medications including potentially toxic antiviral and antiretroviral agents. The contribution of the study drugs to the adverse experience profile is therefore difficult to establish. Table III summarizes the important safety data. A triad of back pain, flushing and chest tightness was reported in 13.8% of the patients (16/116) treated with DaunoXome in the Phase III clinical trial and in 2.7% of treatment cycles (27/994). Most of the episodes were mild to moderate in severity (12% of patients and 2.5% of treatment cycles). Mild alopecia was reported in 6% of patients treated with DaunoXome and moderate alopecia in 2% of patients. Mild nausea was reported in 35% of DaunoXome patients, moderate nausea in 16% of patients and severe nausea in 3% of patients. For patients treated with DaunoXome, mild vomiting was reported in 10%, moderate in 10%, and severe in 3% of patients. Although grade 3���4 injection site inflammation was reported in 2 patients treated with DaunoXome, no instances of local tissue necrosis were observed with extravasation. Table IV is a listing of all the mild-moderate and severe adverse events reported on both treatment arms in Protocol 103-09 in���5% of DaunoXome patients. The following adverse events were reported in���5% of patients treated with DaunoXome, tabulated by body system. Body As A Whole: Injection site inflammation Cardiovascular: Hot flushes, hypertension, palpitation, syncope, tachycardia. In other follow-up clinical trials of DaunoXome (daunorubicin citrate liposome injection) use in treatment of Kaposi's sarcoma or other malignancies, the following serious cardiac events were reported: Pericardial effusion, pericardial tamponade, ventricular extrasystoles, cardiac arrest, sinus tachycardia, atrial fibrillation, pulmonary hypertension, myocardial infarction, supraventricular tachycardia, angina pectoris . Digestive: Increased appetite, dysphagia, GI hemorrhage, gastritis, gingival bleeding, hemorrhoids, hepatomegaly, melena, dry mouth, tooth caries Hemic and Lymphatic: Lymphadenopathy, splenomegaly Metabolic and Nutritional: Dehydration, thirst Nervous: Amnesia, anxiety, ataxia, confusion, convulsions, emotional lability, abnormal gait, hallucination, hyperkinesia, hypertonia, meningitis, somnolence, abnormal thinking, tremor Respiratory: Hemoptysis, hiccups, pulmonary infiltration, increased sputum Skin: Folliculitis, seborrhea, dry skin Special Senses: Conjunctivitis, deafness, earache, eye pain, taste perversion, tinnitus Urogenital: Dysuria, nocturia, polyuria
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DaunoXome is indicated as a first line cytotoxic therapy for advanced HIV-associated Kaposi's sarcoma. DaunoXome is not recommended in patients with less than advanced HIV-related Kaposi's sarcoma.
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Daunoxome
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