ISTODAX

Generic: ROMIDEPSIN

Prescription Drug

Drug Information

Brand Name
ISTODAX
Generic Name
ROMIDEPSIN
Manufacturer
Celgene Corporation
Product Type
Prescription Drug
Application Number
03b39d40-90fe-11df-9de6-0002a5d5c51b

Indications & Usage

1 INDICATIONS AND USAGE ISTODAX is indicated for the treatment of cutaneous T-cell lymphoma (CTCL) in adult patients who have received at least one prior systemic therapy. ISTODAX is a histone deacetylase (HDAC) inhibitor indicated for the treatment of cutaneous T-cell lymphoma (CTCL) in adult patients who have received at least one prior systemic therapy ( 1 ).

Warnings

5 WARNINGS AND PRECAUTIONS โ€ข Myelosuppression: ISTODAX can cause thrombocytopenia, leukopenia (neutropenia and lymphopenia), and anemia; monitor blood counts during treatment with ISTODAX; interrupt and/or modify the dose as necessary ( 5.1 ). โ€ข Infections: Fatal and serious infections. Reactivation of DNA viruses (Epstein Barr and hepatitis B). Consider monitoring and prophylaxis in patients with evidence of prior hepatitis B ( 5.2 ). โ€ข Electrocardiographic (ECG) changes: Consider cardiovascula...

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5 WARNINGS AND PRECAUTIONS โ€ข Myelosuppression: ISTODAX can cause thrombocytopenia, leukopenia (neutropenia and lymphopenia), and anemia; monitor blood counts during treatment with ISTODAX; interrupt and/or modify the dose as necessary ( 5.1 ). โ€ข Infections: Fatal and serious infections. Reactivation of DNA viruses (Epstein Barr and hepatitis B). Consider monitoring and prophylaxis in patients with evidence of prior hepatitis B ( 5.2 ). โ€ข Electrocardiographic (ECG) changes: Consider cardiovascular monitoring in patients with congenital long QT syndrome, a history of significant cardiovascular disease, and patients taking medicinal products that lead to significant QT prolongation. Ensure that potassium and magnesium are within the normal range before administration of ISTODAX ( 5.3 ). โ€ข Tumor lysis syndrome: Patients with advanced stage disease and/or high tumor burden are at greater risk and should be closely monitored and appropriate precautions taken ( 5.4 ). โ€ข Embryo-fetal toxicity: Can cause fetal harm. Advise females of reproductive potential and males with female partners of reproductive potential of potential risk to a fetus and to use effective contraception ( 5.5 , 8.1 , 8.3 ). 5.1 Myelosuppression Treatment with ISTODAX can cause thrombocytopenia, leukopenia (neutropenia and lymphopenia), and anemia. Monitor blood counts regularly during treatment with ISTODAX and modify the dose as necessary [see Dosage and Administration (2.2) and Adverse Reactions (6.1) ]. 5.2 Infections Fatal and serious infections have been reported in clinical trials of ISTODAX, including pneumonia, sepsis, and viral reactivation, including reactivation of Epstein Barr and hepatitis B viruses. These infections can occur during and following treatment. The risk of life-threatening infections may be greater in patients with a history of prior treatment with monoclonal antibodies directed against lymphocyte antigens and in patients with disease involvement of the bone marrow [see Adverse Reactions (6.1) ] . Reactivation of hepatitis B virus infection was reported in 1% of patients in clinical trials. In patients with evidence of prior hepatitis B infection, consider monitoring for reactivation, and consider antiviral prophylaxis. Reactivation of Epstein Barr viral infection leading to liver failure has occurred in recipients of ISTODAX including after ganciclovir prophylaxis. 5.3 Electrocardiographic Changes Several treatment-emergent morphological changes in ECGs (including T-wave and ST-segment changes) have been reported in clinical studies. The clinical significance of these changes is unknown [see Adverse Reactions (6.1) ]. In patients with congenital long QT syndrome, patients with a history of significant cardiovascular disease, and patients taking anti-arrhythmic medicines or medicinal products that lead to significant QT prolongation, consider cardiovascular monitoring of ECGs at baseline and periodically during treatment. Confirm that potassium and magnesium levels are within normal range before administration of ISTODAX [see Adverse Reactions (6.1) ] . 5.4 Tumor Lysis Syndrome Tumor lysis syndrome (TLS) has been reported to occur in recipients of ISTODAX, including in 1% of patients with tumor stage CTCL. Patients with advanced stage disease and/or high tumor burden are at greater risk, should be closely monitored, and managed as appropriate. 5.5 Embryo-Fetal Toxicity Based on its mechanism of action and findings from animal studies, ISTODAX can cause fetal harm when administered to a pregnant woman. In an animal reproductive study, romidepsin was embryocidal and caused adverse developmental outcomes at exposures below those in patients at the recommended dose of 14 mg/m 2 . Advise females of reproductive potential to use effective contraception during treatment and for 1 month after the last dose. Advise males with female partners of reproductive potential to use effective contraception during treatment and for 1 month after the last dose [see Use in Specific Populations (8.1 , 8.3) and Clinical Pharmacology (12.1) ] .

Adverse Reactions

6 ADVERSE REACTIONS The following adverse reactions are described in more detail in other sections of the prescribing information. โ€ข Myelosuppression [see Warnings and Precautions (5.1) ] โ€ข Infections [see Warnings and Precautions (5.2) ] โ€ข Electrocardiographic Changes [see Warnings and Precautions (5.3) ] โ€ข Tumor Lysis Syndrome [see Warnings and Precautions (5.4) ] The most common adverse reactions (โ‰ฅ30%), excluding laboratory abnormalities, are nausea, fatigue, infections, vomiting, anorexia, ...

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6 ADVERSE REACTIONS The following adverse reactions are described in more detail in other sections of the prescribing information. โ€ข Myelosuppression [see Warnings and Precautions (5.1) ] โ€ข Infections [see Warnings and Precautions (5.2) ] โ€ข Electrocardiographic Changes [see Warnings and Precautions (5.3) ] โ€ข Tumor Lysis Syndrome [see Warnings and Precautions (5.4) ] The most common adverse reactions (โ‰ฅ30%), excluding laboratory abnormalities, are nausea, fatigue, infections, vomiting, anorexia, electrocardiogram ST-T wave changes, dysgeusia, constipation and pruritis. Grade 3โ€4 laboratory abnormalities (โ‰ฅ10%) include lymphopenia, neutropenia, anemia and thrombocytopenia ( 6 ). To report SUSPECTED ADVERSE REACTIONS, contact Bristol-Myers Squibb at 1-800-721-5072 or the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The data in the WARNINGS AND PRECAUTIONS reflect exposure to ISTODAX in four clinical trials involving 363 patients with T-cell lymphoma, including 185 patients with CTCL. ISTODAX was administered as a single agent at a dosage of 14 mg/m 2 on days 1, 8, and 15 of a 28-day cycle. Among 363 patients who received ISTODAX, 21% were exposed for 6 months or longer and 13% were exposed for greater than one year. Cutaneous T-Cell Lymphoma The safety of ISTODAX was evaluated in 185 patients with CTCL in 2 single arm clinical studies in which patients received a dosage of 14 mg/m 2 on days 1, 8, and 15 of a 28-day cycle. Treatment continued as long as the patient benefitted from and tolerated the drug. The mean duration of treatment in these studies was 5.6 months (range: <1 to 83.4 months). Common Adverse Reactions Table 2 summarizes the most frequent adverse reactions (>20%) regardless of causality using the National Cancer Institute-Common Terminology Criteria for Adverse Events (NCI-CTCAE, Version 3.0). Due to methodological differences between the studies, the AE data are presented separately for Study 1 and Study 2. Adverse reactions are ranked by their incidence in Study 1. Laboratory abnormalities commonly reported (>20%) as adverse reactions are included in Table 2. Table 2. Adverse Reactions Occurring in >20% of Patients in Either CTCL Study (N=185) Adverse Reactions n (%) Study 1 (n=102) Study 2 (n=83) All grades Grade 3 or 4 All grades Grade 3 or 4 Any adverse reactions 99 (97) 36 (35) 83 (100) 68 (82) Nausea 57 (56) 3 (3) 71 (86) 5 (6) Asthenia/Fatigue 54 (53) 8 (8) 64 (77) 12 (14) Infections 47 (46) 11 (11) 45 (54) 27 (33) Vomiting 35 (34) 1 (<1) 43 (52) 8 (10) Anorexia 23 (23) 1 (<1) 45 (54) 3 (4) Hypomagnesemia 22 (22) 1 (<1) 23 (28) 0 Diarrhea 20 (20) 1 (<1) 22 (27) 1 (1) Pyrexia 20 (20) 4 (4) 19 (23) 1 (1) Anemia 19 (19) 3 (3) 60 (72) 13 (16) Thrombocytopenia 17 (17) 0 54 (65) 12 (14) Dysgeusia 15 (15) 0 33 (40) 0 Constipation 12 (12) 2 (2) 32 (39) 1 (1) Neutropenia 11 (11) 4 (4) 47 (57) 22 (27) Hypotension 7 (7) 3 (3) 19 (23) 3 (4) Pruritus 7 (7) 0 26 (31) 5 (6) Hypokalemia 6 (6) 0 17 (20) 2 (2) Dermatitis/Exfoliative dermatitis 4 (4) 1 (<1) 22 (27) 7 (8) Hypocalcemia 4 (4) 0 43 (52) 5 (6) Leukopenia 4 (4) 0 38 (46) 18 (22) Lymphopenia 4 (4) 0 47 (57) 31 (37) Alanine aminotransferase increased 3 (3) 0 18 (22) 2 (2) Aspartate aminotransferase increased 3 (3) 0 23 (28) 3 (4) Hypoalbuminemia 3 (3) 1 (<1) 40 (48) 3 (4) Electrocardiogram ST-T wave changes 2 (2) 0 52 (63) 0 Hyperglycemia 2 (2) 2 (2) 42 (51) 1 (1) Hyponatremia 1 (<1) 1 (<1) 17 (20) 2 (2) Hypermagnesemia 0 0 22 (27) 7 (8) Hypophosphatemia 0 0 22 (27) 8 (10) Hyperuricemia 0 0 27 (33) 7 (8) Serious Adverse Reactions Infections were the most common type of SAE reported in both studies with 8 patients (8%) in Study 1 and 26 patients (31%) in Study 2 experiencing a serious infection. Serious adverse reactions reported in >2% of patients in Study 1 were sepsis and pyrexia (3%). In Study 2, serious adverse reactions in >2% of patients were fatigue (7%), supraventricular arrhythmia, central line infection, neutropenia (6%), hypotension, hyperuricemia, edema (5%), ventricular arrhythmia, thrombocytopenia, nausea, leukopenia, dehydration, pyrexia, aspartate aminotransferase increased, sepsis, catheter related infection, hypophosphatemia and dyspnea (4%). There were eight deaths not due to disease progression. In Study 1, there were two deaths: one due to cardiopulmonary failure and one due to acute renal failure. There were six deaths in Study 2: four due to infection and one each due to myocardial ischemia and acute respiratory distress syndrome. Discontinuations Discontinuation due to an adverse event occurred in 21% of patients in Study 1 and 11% in Study 2. Discontinuations occurring in at least 2% of patients in either study included infection, fatigue, dyspnea, QT prolongation, and hypomagnesemia. Other Clinical Trials Experience The following common adverse reactions have been reported following administration of ISTODAX as a single agent in 178 patients with peripheral T-cell lymphoma, for which ISTODAX is not indicated or recommended. The most common adverse reactions (โ‰ฅ30%) included nausea (63%), fatigue (61%), thrombocytopenia (49%), vomiting (39%), neutropenia (39%), pyrexia (38%), diarrhea (36%) and anemia (35%). Other common (โ‰ฅ10%) clinically significant adverse reactions included dysgeusia (22%), headache (20%), cough (19%), dyspnea (15%), abdominal pain (13%) and stomatitis (10%). Grade 3 and higher adverse reactions in โ‰ฅ10% were hematologic toxicities (including thrombocytopenia, neutropenia, leukopenia and anemia) and fatigue.

Medical Disclaimer: This information is for educational purposes only and does not constitute medical advice. Always consult a licensed healthcare provider before making any decisions about your medications. Data sourced from openFDA.