Components:
Vincristine
Method of action:
Antitumour
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Name of the medicinal product

Accord Vincristine

Qualitative and quantitative composition

Vincristine

Therapeutic indications

The information provided in Therapeutic indications of Accord Vincristine is based on data of another medicine with exactly the same composition as the Accord Vincristine of the medicine (Vincristine). Be careful and be sure to specify the information on the section Therapeutic indications in the instructions to the drug Accord Vincristine directly from the package or from the pharmacist at the pharmacy.
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Accord Vincristine injection (Accord Vincristine) is indicated in acute leukemia.

Accord Vincristine injection (Accord Vincristine) has also been shown to be useful in combination with other oncolytic agents in Hodgkin's disease, non-Hodgkin's malignant lymphomas (lymphocytic, mixed cell, histiocytic, undifferentiated, nodular and diffuse types), rhabdomyosarcoma, neuroblastoma, and Wilms' tumor.

Dosage (Posology) and method of administration

The information provided in Dosage (Posology) and method of administration of Accord Vincristine is based on data of another medicine with exactly the same composition as the Accord Vincristine of the medicine (Vincristine). Be careful and be sure to specify the information on the section Dosage (Posology) and method of administration in the instructions to the drug Accord Vincristine directly from the package or from the pharmacist at the pharmacy.
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This preparation is for intravenous use only (see WARNINGS).

Neurotoxicity appears to be dose related. Extreme care must be used in calculating and administering the dose of Accord Vincristine Injection, USP (Accord Vincristine) since overdosage may have a very serious or fatal outcome.

Special Dispensing Information: WHEN DISPENSING Accord Vincristine INJECTION (Accord Vincristine) , USP IN OTHER THAN THE ORIGINAL CONTAINER, IT IS IMPERATIVE THAT IT BE PACKAGED IN THE PROVIDED OVERWRAP WHICH BEARS THE FOLLOWING STATEMENT: “DO NOT REMOVE COVERING UNTIL MOMENT OF INJECTION. FATAL IF GIVEN INTRATHECALLY. FOR INTRAVENOUS USE ONLY” (see WARNINGS). A syringe containing a specific dose must be labeled, using the auxiliary sticker provided, to state: “FATAL IF GIVEN INTRATHECALLY. FOR INTRAVENOUS USE ONLY.”

The concentration of Accord Vincristine Injection, USP (Accord Vincristine) is 1 mg/mL. Do not add extra fluid to the vial prior to removal of the dose. Withdraw the solution of Accord Vincristine Injection, USP (Accord Vincristine) into an accurate dry syringe, measuring the dose carefully. Do not add extra fluid to the vial in an attempt to empty it completely.

Caution: It is extremely important that the intravenous needle or catheter be properly positioned before any vincristine is injected. Leakage into surrounding tissue during intravenous administration of Accord Vincristine Injection, USP (Accord Vincristine) may cause considerable irritation. If extravasation occurs, the injection should be discontinued immediately and any remaining portion of the dose should then be introduced into another vein. Local injection of hyaluronidase and the application of moderate heat to the area of leakage will help disperse the drug and may minimize discomfort and the possibility of cellulitis.

Accord Vincristine Injection, USP (Accord Vincristine) must be administered via an intact, free-flowing intravenous needle or catheter. Care should be taken that there is no leakage or swelling occurring during administration (see BOXED WARNINGS).

The solution may be injected either directly into a vein or into the tubing of a running intravenous infusion (see Drug Interactions below). Injection of Accord Vincristine Injection, USP (Accord Vincristine) should be accomplished within 1 minute.

The drug is administered intravenously at weekly intervals.

The usual dose of Accord Vincristine Injection, USP (Accord Vincristine) for pediatric patients is 1.5-2 mg/m². For pediatric patients weighing 10 kg or less, the starting dose should be 0.05 mg/kg, administered once a week. The usual dose of Vincristine Sulfate Injection, USP for adults is 1.4 mg/m². A 50% reduction in the dose of Accord Vincristine Injection, USP (Accord Vincristine) is recommended for patients having a direct serum bilirubin value above 3 mg/100 mL.

Accord Vincristine Injection, USP (Accord Vincristine) should not be given to patients while they are receiving radiation therapy through ports that include the liver. When Accord Vincristine Injection (Accord Vincristine) , USP is used in combination with L-asparaginase, Accord Vincristine Injection, USP (Accord Vincristine) should be given 12 to 24 hours before administration of the enzyme in order to minimize toxicity; administering L-asparaginase before Accord Vincristine Injection, USP (Accord Vincristine) may reduce hepatic clearance of vincristine.

Drug Interactions - Accord Vincristine Injection, USP (Accord Vincristine) should not be diluted in solutions that raise or lower the pH outside the range of 3.5 to 5.5. It should not be mixed with anything other than normal saline or glucose in water.

Whenever solution and container permit, parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration.

Handling and Disposal - Procedures for proper handling and disposal of anticancer drugs should be considered. Several guidelines on this subject have been published. 1-7 There is no general agreement that all of the procedures recommended in the guidelines are necessary or appropriate.

Contraindications

The information provided in Contraindications of Accord Vincristine is based on data of another medicine with exactly the same composition as the Accord Vincristine of the medicine (Vincristine). Be careful and be sure to specify the information on the section Contraindications in the instructions to the drug Accord Vincristine directly from the package or from the pharmacist at the pharmacy.
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Patients with the demyelinating form of Charcot-Marie-Tooth syndrome should not be given Accord Vincristine injection (Accord Vincristine) . Careful attention should be given to those conditions listed under Warning and Precautions.

Special warnings and precautions for use

The information provided in Special warnings and precautions for use of Accord Vincristine is based on data of another medicine with exactly the same composition as the Accord Vincristine of the medicine (Vincristine). Be careful and be sure to specify the information on the section Special warnings and precautions for use in the instructions to the drug Accord Vincristine directly from the package or from the pharmacist at the pharmacy.
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WARNINGS

This preparation is for intravenous use only. It should be administered by individuals experienced in the administration of Accord Vincristine injection. The intrathecal administration of Accord Vincristine injection (Accord Vincristine) usually results in death. Syringes containing this product should be labeled, using the auxiliary sticker provided, to state “FATAL IF GIVEN INTRATHECALLY. FOR INTRAVENOUS USE ONLY.”

Extemporaneously prepared syringes containing this product must be packaged in an overwrap which is labeled “DO NOT REMOVE COVERING UNTIL MOMENT OF INJECTION. FATAL IF GIVEN INTRATHECALLY. FOR INTRAVENOUS USE ONLY.”

Treatment of patients following intrathecal administration of Accord Vincristine injection has included immediate removal of spinal fluid and flushing with Lactated Ringer's, as well as other solutions and has not prevented ascending paralysis and death. In one case, progressive paralysis in an adult was arrested by the following treatment initiated immediately after the intrathecal injection:

  1. As much spinal fluid was removed as could be safely done through lumbar access.
  2. The subarachnoid space was flushed with Lactated Ringer's solution infused continuously through a catheter in a cerebral lateral ventricle at the rate of 150 mL/h. The fluid was removed through a lumbar access.
  3. As soon as fresh frozen plasma became available, the fresh frozen plasma, 25 mL, diluted in 1 L of Lactated Ringer's solution was infused through the cerebral ventricular catheter at the rate of 75 mL/h with removal through the lumbar access. The rate of infusion was adjusted to maintain a protein level in the spinal fluid of 150 mg/dL.
  4. Glutamic acid, 10 g, was given intravenously over 24 hours followed by 500 mg 3 times daily by mouth for 1 month or until neurological dysfunction stabilized. The role of glutamic acid in this treatment is not certain and may not be essential.

Pregnancy Category D - Accord Vincristine can cause fetal harm when administered to a pregnant woman. When pregnant mice and hamsters were given doses of Accord Vincristine that caused resorption of 23% to 85% of fetuses, fetal malformations were produced in those that survived. Five monkeys were given single doses of Accord Vincristine between days 27 and 34 of their pregnancies; 3 of the fetuses were normal at term, and 2 viable fetuses had grossly evident malformations at term. In several animal species, Accord Vincristine can induce teratogenesis as well as embryo death at doses that are nontoxic to the pregnant animal. There are no adequate and well-controlled studies in pregnant women. If this drug is used during pregnancy or if the patient becomes pregnant while receiving this drug, she should be apprised of the potential hazard to the fetus. Women of child-bearing potential should be advised to avoid becoming pregnant.

PRECAUTIONS

General - Acute uric acid nephropathy, which may occur after the administration of oncolytic agents, has also been reported with Accord Vincristine. In the presence of leukopenia or a complicating infection, administration of the next dose of Accord Vincristine injection (Accord Vincristine) warrants careful consideration.

If central nervous system leukemia is diagnosed, additional agents may be required, because vincristine does not appear to cross the blood-brain barrier in adequate amounts.

Particular attention should be given to dosage and neurologic side effects if Accord Vincristine injection (Accord Vincristine) is administered to patients with preexisting neuromuscular disease and when other drugs with neurotoxic potential are also being used.

Acute shortness of breath and severe broncospasm have been reported following the administration of vinca alkaloids. These reactions have been encountered most frequently when the vinca alkaloid was used in combination with mitomycin-C and may require aggressive treatment, particularly when there is preexisting pulmonary dysfunction. The onset of these reactions may occur minutes to several hours after the vinca alkaloid is injected and may occur up to 2 weeks following the dose of mitomycin. Progressive dyspnea requiring chronic therapy may occur. Accord Vincristine should not be readministered.

Care must be taken to avoid contamination of the eye with concentration of Accord Vincristine injection (Accord Vincristine) used clinically. If accidental contamination occurs severe irritation (or, if the drug was delivered under pressure, even corneal ulceration) may result. The eye should be washed immediately and thoroughly.

Laboratory Tests - Because dose-limiting clinical toxicity is manifested as neurotoxicity clinical evaluation (e.g., history, physical examination) is necessary to detect the need for dosage modification. Following administration of Accord Vincristine injection (Accord Vincristine) , some individuals may have a fall in the white blood cell count or platelet count, particularly when previous therapy or the disease itself has reduced bone-marrow function. Therefore, a complete blood count should be done before administration of each dose. Acute elevation of serum uric acid may also occur during induction of remission in acute leukemia; thus, such levels should be determined frequently during the first 3 to 4 weeks of treatment or appropriate measures taken to prevent uric acid nephropathy. The laboratory performing these tests should be consulted for its range of normal values.

Carcinogenesis, Mutagenesis, Impairment of Fertility- Neither in vivo nor in vitro laboratory tests have conclusively demonstrated the mutagenicity of this product. Fertility following treatment with vincristine sulfate alone for malignant disease has not been studied in humans. Clinical reports of both male and female patients who received multiple-agent chemotherapy that included Accord Vincristine indicate that azoospermia and amenorrhea can occur in postpubertal patients. Recovery occurred many months after completion of chemotherapy in some but not all patients. When the same treatment is administered to prepubertal patients, permanent azoospermia and amenorrhea are much less likely.

Patients who received chemotherapy with Accord Vincristine in combination with anti-cancer drugs known to be carcinogenic have developed second malignancies. The contributing role of Accord Vincristine in this development has not been determined. No evidence of carcinogenicity was found following intraperitoneal administration of Accord Vincristine in rats and mice, although this study was limited.

Usage in Pregnancy - Pregnancy Category D. See WARNINGS.

Nursing Mothers- It is not known whether this drug is excreted in human milk. Because many drugs are excreted in human milk and because of the potential for serious adverse reactions due to Accord Vincristine in nursing infants, a decision should be made either to discontinue nursing or the drug, taking into account the importance of the drug to the mother.

Pediatric Use - See DOSAGE AND ADMINISTRATION section.

Undesirable effects

The information provided in Undesirable effects of Accord Vincristine is based on data of another medicine with exactly the same composition as the Accord Vincristine of the medicine (Vincristine). Be careful and be sure to specify the information on the section Undesirable effects in the instructions to the drug Accord Vincristine directly from the package or from the pharmacist at the pharmacy.
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Prior to the use of this drug, patients and/or their parents/guardian should be advised of the possibility of untoward symptoms.

In general, adverse reactions are reversible and are related to dosage. The most common adverse reaction is hair loss; the most troublesome adverse reactions are neuromuscular in origin.

When single, weekly doses of the drug are employed, the adverse reactions of leukopenia, neuritic pain, and constipation occur but are usually of short duration (ie., less than 7 days). When the dosage is reduced, these reactions may lessen or disappear. The severity of such reactions seems to increase when the calculated amount of drug is given in divided doses. Other adverse reactions, such as hair loss, sensory loss, paresthesia, difficulty in walking, slapping gait, loss of deep-tendon reflexes, and muscle wasting, may persist for at least as long as therapy is continued. Generalized sensorimotor dysfunction may become progressively more severe with continued treatment. Although most such symptoms usually disappear by about the sixth week after discontinuance of treatment, some neuromuscular difficulties may persist for prolonged periods in some patients. Regrowth of hair may occur while maintenance therapy walking, slapping gait, loss of deep-tendon reflexes, and muscle wasting, may persist for at least as long as therapy is continued. Generalized sensorimotor dysfunction may become progressively more severe with continued treatment.

Although most such symptoms usually disappear by about the sixth week after discontinuance of treatment, some neuromuscular difficulties may persist for prolonged periods in some patients. Regrowth of hair may occur while maintenance therapy continues.

The following adverse reactions have been reported:

Hepatic veno-occlusive disease has been reported in patients receiving vincristine, particularly in pediatric patients, as part of standard combination chemotherapy regimens. Some of the patients had fatal outcomes; some who survived had undergone liver transplantation.

Hypersensitivity - Rare cases of allergic-type reactions, such as anaphylaxis, rash and edema, that are temporally related to vincristine therapy have been reported in patients receiving vincristine as a part of multidrug chemotherapy regimens.

Gastrointestinal - Constipation, abdominal cramps, weight loss, nausea, vomiting, oral ulceration, diarrhea, paralytic ileus, intestinal necrosis and/or perforation, and anorexia have occurred. Constipation may take the form of upper-colon impaction, and, on physical examination, the rectum may be empty. Colicky abdominal pain coupled with an empty rectum may mislead the physician. A flat film of the abdomen is useful in demonstrating this condition. All cases have responded to high enemas and laxatives. A routine prophylactic regimen against constipation is recommended for all patients receiving Accord Vincristine injection (Accord Vincristine) . Paralytic ileus (which mimics the “surgical abdomen”) may occur, particularly in young pediatric patients. The ileus will reverse itself with temporary discontinuance of Accord Vincristine injection (Accord Vincristine) and with symptomatic care.

Genitourinary-Polyuria, dysuria, and urinary retention due to bladder atony have occurred. Other drugs known to cause urinary retention (particularly in the elderly) should, if possible, be discontinued for the first few days following administration of Accord Vincristine injection (Accord Vincristine) .

Cardiovascular - Hypertension and hypotension have occurred. Chemotherapy combinations that have included Accord Vincristine, when given to patients previously treated with mediastinal radiation, have been associated with coronary artery disease and myocardial infarction. Causality has not been established.

Neurologic - Frequently, there is a sequence to the development of neuromuscular side effects. Initially, only sensory impairment and paresthesia may be encountered. With continued treatment, neuritic pain and, later, motor difficulties may occur. There have been no reports of any agent that can reverse the neuromuscular manifestations that may accompany therapy with Accord Vincristine.

Loss of deep-tendon reflexes, foot drop, ataxia, and paralysis have been reported with continued administration. Cranial nerve manifestations, such as isolated paresis and/or paralysis of muscles controlled by cranial motor nerves including potentially life-threatening bilateral vocal cord paralysis, may occur in the absence of motor impairment elsewhere; extraocular and laryngeal muscles are those most commonly involved. Jaw pain, pharyngeal pain, parotid gland pain, bone pain, back pain, limb pain, and myalgias have been reported; pain in these areas may be severe. Convulsions, frequently with hypertension, have been reported in a few patients receiving Accord Vincristine. Several instances of convulsions followed by coma have been reported in pediatric patients. Transient cortical blindness and optic atrophy with blindness have been reported. Treatment with vinca alkaloids has resulted in both vestibular and auditory damage to the eighth cranial nerve. Manifestations include partial or total deafness which may be temporary or permanent, and difficulties with balance including dizziness, nystagmus, and vertigo. Particular caution is warranted when vincristine is used in combination with other agents known to be ototoxic such as the platinum-containing oncolytics.

Pulmonary - See PRECAUTIONS.

Endocrine - Rare occurrences of a syndrome attributable to inappropriate antidiuretic hormone secretion have been observed in patients treated with vincristine sulfate. This syndrome is characterized by high urinary sodium excretion in the presence of hyponatremia; renal or adrenal disease, hypotension, dehydration, azotemia, and clinical edema are absent. With fluid deprivation, improvement occurs in the hyponatremia and in the renal loss of sodium.

Hematologic - Accord Vincristine injection (Accord Vincristine) does not appear to have any constant or significant effect on platelets or red blood cells. Serious bone-marrow depression is usually not a major dose-limiting event. However, anemia, leukopenia, and thrombocytopenia have been reported. Thrombocytopenia, if present when therapy with Accord Vincristine injection (Accord Vincristine) is begun, may actually improve before the appearance of bone marrow remission.

Skin - Alopecia and rash have been reported.

Other - Fever and headache have occurred.

Overdose

The information provided in Overdose of Accord Vincristine is based on data of another medicine with exactly the same composition as the Accord Vincristine of the medicine (Vincristine). Be careful and be sure to specify the information on the section Overdose in the instructions to the drug Accord Vincristine directly from the package or from the pharmacist at the pharmacy.
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Side effects following the use of Accord Vincristine injection (Accord Vincristine) are dose related. In pediatric patients under 13 years of age, death has occurred following doses of Accord Vincristine that were 10 times those recommended for therapy. Severe symptoms may occur in this patient group following dosages of 3 to 4 mg/m². Adults can be expected to experience severe symptoms after single doses of 3 mg/m² or more (see ADVERSE REACTIONS). Therefore, following administration of doses higher than those recommended, patients can be expected to experience exaggerated side effects. Supportive care should include the following: (1) prevention of side effects resulting from the syndrome of inappropriate antidiuretic hormone secretion (preventive treatment would include restriction of fluid intake and perhaps the administration of a diuretic affecting the function of Henle's loop and the distal tubule); (2) administration of anticonvulsants; (3) use of enemas or cathartics to prevent ileus (in some instances, decompression of the gastrointestinal tract may be necessary); (4) monitoring the cardiovascular system; (5) determining daily blood counts for guidance in transfusion requirements.

Folinic acid has been observed to have a protective effect in normal mice that were administered lethal doses of Accord Vincristine (Cancer Res 1963;23:1390). Isolated case reports suggest that folinic acid may be helpful in treating humans who have received an overdose of Accord Vincristine. It is suggested that 100 mg of folinic acid be administered intravenously every 3 hours for 24 hours and then every 6 hours for at least 48 hours. Theoretically (based on pharmacokinetic data), tissue levels of Accord Vincristine can be expected to remain significantly elevated for at least 72 hours. Treatment with folinic acid does not eliminate the need for the above mentioned supportive measures.

Most of an intravenous dose of vincristine is excreted into the bile after rapid tissue binding (see CLINICAL PHARMACOLOGY). Because only very small amounts of the drug appear in dialysate, hemodialysis is not likely to be helpful in cases of overdosage. An increase in the severity of side effects may be experienced by patients with liver disease that is severe enough to decrease biliary excretion.

Enhanced fecal excretion of parenterally administered vincristine has been demonstrated in dogs pretreated with cholestyramine. There are no published clinical data on the use of cholestyramine as an antidote in humans.

There are no published clinical data on the consequences of oral ingestion of vincristine. Should oral ingestion occur, the stomach should be evacuated. Evacuation should be followed by oral administration of activated charcoal and a cathartic.