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DACOGEN is indicated for treatment of patients with myelodysplastic syndromes (MDS) including Previously treated and untreated De novo and secondary All French-American-British (FAB) subtypes (refractory anemia, refractory anemia with ringed sideroblasts, refractory anemia with excess blasts, refractory anemia with excess blasts in transformation, and chronic myelomonocytic leukemia) Intermediate-1, intermediate-2, and high-risk International Prognostic Scoring System (IPSS) groups
IMPORTANT SAFETY INFORMATION:
Complete blood counts and platelet counts should be performed as needed to monitor response and toxicity, but at a minimum, prior to each cycle. Liver chemistries and serum creatinine should be obtained prior to initiation of treatment.
Following the first cycle of DACOGEN treatment, if any of the following non-hematologic toxicities are present, DACOGEN treatment should not be restarted until the toxicity is resolved: 1) serum creatinine ≥2 mg/dL; 2) SGPT, total bilirubin ≥2 times ULN; 3) and active or uncontrolled infection.
Most Commonly Occurring Adverse Reactions: neutropenia, thrombocytopenia, anemia, fatigue, pyrexia, nausea, cough, petechiae, constipation, diarrhea, and hyperglycemia.
Clinically Important Adverse Reactions: In the phase 3 clinical trial, the highest incidence of Grade 3 or Grade 4 adverse events in the DACOGEN arm was neutropenia (87%), thrombocytopenia (85%), febrile neutropenia (23%), and leukopenia (22%). Bone marrow suppression was the most frequent cause of dose reduction, delay, and discontinuation. Six patients had fatal events associated with their underlying disease and myelosuppression (anemia, neutropenia, and thrombocytopenia) that were considered at least possibly related to drug treatment. For DACOGEN-treated patients, 8 of 83 permanently discontinued therapy for adverse events; compared to 1 of 81 patients in the supportive care arm.
In the single-arm study, the highest incidence of Grade 3 or Grade 4 adverse events was neutropenia (37%), thrombocytopenia (24%), and anemia (22%). Seventy-eight percent of patients had dose delays, the median duration of this delay was 7 days. Hematologic toxicities and infections were the most frequent causes of dose delays and discontinuation. Eight patients had fatal events due to infection and/or bleeding that were considered at least possibly related to drug treatment.
USE IN SPECIFIC POPULATIONS: Nursing Mothers: Because many drugs are excreted in human milk, and because of the potential for serious adverse reactions from DACOGEN in nursing infants, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother. Renal and Hepatic Impairment: Because there are no data, DACOGEN should be used with caution in patients with renal or hepatic dysfunction.
To report SUSPECTED ADVERSE REACTIONS, contact Otsuka America Pharmaceutical, Inc. at 1-800- 438-9927 or FDA at 1-800-FDA1088 (www.fda.gov/medwatch).
Please see accompanying FULL PRESCRIBING INFORMATION