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(arsenic trioxide) Injection
For Intravenous Use Only
10 mg/10 mL (1 mg/mL) Ampule
Experienced Physician and Institution
TRISENOX (arsenic trioxide) injection should be administered under the supervision of a physician who is experienced in the management of patients with acute leukemia.
APL Differentiation Syndrome
Some patients with APL treated with TRISENOX (arsenic trioxide injection) have experienced symptoms similar to a syndrome called the retinoic-acid-Acute Promyelocytic Leukemia (RA-APL) or APL differentiation syndrome, characterized by fever, dyspnea, weight gain, pulmonary infiltrates and pleural or pericardial effusions, with or without leukocytosis. This syndrome can be fatal. The management of the syndrome has not been fully studied, but high-dose steroids have been used at the first suspicion of the APL differentiation syndrome and appear to mitigate signs and symptoms. At the first signs that could suggest the syndrome (unexplained fever, dyspnea and/or weight gain, abnormal chest auscultatory findings or radiographic abnormalities), high-dose steroids (dexamethasone 10 mg intravenously BID) should be immediately initiated, irrespective of the leukocyte count, and continued for at least 3 days or longer until signs and symptoms have abated. The majority of patients do not require termination of TRISENOX (arsenic trioxide injection) therapy during treatment of the APL differentiation syndrome.
Arsenic trioxide can cause QT interval prolongation and complete atrioventricular block. QT prolongation can lead to a torsade de pointes-type ventricular arrhythmia, which can be fatal. The risk of torsade de pointes is related to the extent of QT prolongation, concomitant administration of QT prolonging drugs, a history of torsade de pointes, preexisting QT interval prolongation, congestive heart failure, administration of potassium-wasting diuretics, or other conditions that result in hypokalemia or hypomagnesemia. One patient (also receiving amphotericin B) had torsade de pointes during induction therapy for relapsed APL with arsenic trioxide.
ECG and Electrolyte Monitoring Recommendations
Prior to initiating therapy with TRISENOX (arsenic trioxide injection) , a 12-lead ECG should be performed and serum electrolytes (potassium, calcium, and magnesium) and creatinine should be assessed; preexisting electrolyte abnormalities should be corrected and, if possible, drugs that are known to prolong the QT interval should be discontinued. For QTc greater than 500 msec, corrective measures should be completed and the QTc reassessed with serial ECGs prior to considering using TRISENOX (arsenic trioxide injection) . During therapy with TRISENOX (arsenic trioxide injection) , potassium concentrations should be kept above 4 mEq/L and magnesium concentrations should be kept above 1.8 mg/dL. Patients who reach an absolute QT interval value > 500 msec should be reassessed and immediate action should be taken to correct concomitant risk factors, if any, while the risk/benefit of continuing versus suspending TRISENOX (arsenic trioxide injection) therapy should be considered. If syncope, rapid or irregular heartbeat develops, the patient should be hospitalized for monitoring, serum electrolytes should be assessed, TRISENOX (arsenic trioxide injection) therapy should be temporarily discontinued until the QTc interval regresses to below 460 msec, electrolyte abnormalities are corrected, and the syncope and irregular heartbeat cease. There are no data on the effect of TRISENOX (arsenic trioxide injection) on the QTc interval during the infusion.
TRISENOX is a sterile injectable solution of arsenic trioxide. The molecular formula of the drug substance in the solid state is AsiOs, with a molecular weight of 197.8 g.
TRISENOX (arsenic trioxide injection) is available in 10 mL, single-use ampules containing 10 mg of arsenic trioxide. TRISENOX (arsenic trioxide injection) is formulated as a sterile, nonpyrogenic, clear solution of arsenic trioxide in water for injection using sodium hydroxide and dilute hydrochloric acid to adjust to pH 8. TRISENOX is preservative-free. Arsenic trioxide, the active ingredient, is present at a concentration of 1.0 mg/mL. Inactive ingredients and their respective approximate concentrations are sodium hydroxide (1.2 mg/mL) and hydrochloric acid, which is used to adjust the pH to 7.5 - 8.5.
What are the possible side effects of arsenic trioxide (Trisenox)?
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have a serious side effect such as:
- sharp chest pain, wheezing, rapid breathing, feeling short of breath;
- dry cough, feeling weak, tired, or ill;
- fever, chills, swelling in your ankles or feet, weight gain;
- dizziness, fainting, fast or pounding heartbeat;
- pale skin, easy bruising or bleeding (nosebleeds);
- high blood sugar (increased...
What are the precautions when taking arsenic trioxide injection (Trisenox)?
Before using this medication, tell your doctor or pharmacist if you are allergic to arsenic; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially: kidney disease, diabetes.
Arsenic trioxide may cause a condition that affects the heart rhythm (QT prolongation). QT prolongation can infrequently result in serious (rarely fatal) fast/irregular heartbeat and other symptoms (such as severe dizziness, fainting) that need medical attention right away.
The risk of QT prolongation may be increased if you have certain medical conditions or are taking other...
Last reviewed on RxList: 8/13/2010
This monograph has been modified to include the generic and brand name in many instances.
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