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warnings and cautions
5 WARNINGS AND PRECAUTIONS • Gastrointestinal Toxicity: Monitor and manage as necessary. Withhold, dose reduce, or discontinue bosutinib tablets. ( 2.3 , 5.1 ) • Myelosuppression: Monitor blood counts and manage as necessary. Withhold, dose reduce or discontinue bosutinib tablets ( 2.4 , 5.2 ) • Hepatic Toxicity: Monitor liver enzymes at least monthly for the first 3 months and as needed. Withhold, dose reduce, or discontinue bosutinib tablets. ( 2.3 , 5.3 ) • Cardiovascular Toxicity: Monitor and manage as necessary. Interrupt, dose reduce, or discontinue bosutinib tablets. ( 5.4 ) • Fluid Retention: Monitor patients and manage using standard of care treatment. Interrupt, dose reduce, or discontinue bosutinib tablets. ( 2.3 , 5.5 ) • Renal Toxicity: Monitor patients for renal function at baseline and during therapy with bosutinib tablets. ( 5.6 ) • Embryo-Fetal Toxicity: Bosutinib tablets can cause fetal harm. Advise female patients of reproductive potential of potential risk to a fetus and to use effective contraception. ( 5.7 ) 5.1 Gastrointestinal Toxicity Diarrhea, nausea, vomiting, and abdominal pain occur with bosutinib tablets treatment. Monitor and manage patients using standards of care, including antidiarrheals, antiemetics, and fluid replacement. Among 546 adult patients in a single-arm study in patients with CML who were resistant or intolerant to prior therapy, the median time to onset for diarrhea (all grades) was 2 days and the median duration per event was 2 days. Among the patients who experienced diarrhea, the median number of episodes of diarrhea per patient during treatment with bosutinib tablets was 3 (range 1 to 268). To manage gastrointestinal toxicity, withhold, dose reduce, or discontinue bosutinib tablets as necessary [see Dosage and Administration (2.3) and Adverse Reactions (6)] . Pediatric use information is approved for PF PRISM CV’s BOSULIF® (bosutinib) tablets. However, due to PF PRISM CV’s marketing exclusivity rights, this drug product is not labeled with that information. 5.2 Myelosuppression Thrombocytopenia, anemia and neutropenia occur with bosutinib tablets treatment. Perform complete blood counts weekly for the first month of therapy and then monthly thereafter, or as clinically indicated. To manage myelosuppression, withhold, dose reduce, or discontinue bosutinib tablets as necessary [see Dosage and Administration ...
warnings and cautions table
Baseline Follow-Up Renal Function Status N Normal n (%) Mild n (%) Mild to Moderate n (%) Moderate to Severe n (%) Severe n (%) Kidney Failure n (%) Normal 527 115 (21.8) 330 (62.6) 50 (9.5) 23 (4.4) 3 (0.6) 5 (0.9) Mild 672 10 (1.5) 259 (38.5) 271 (40.3) 96 (14.3) 26 (3.9) 6 (0.9) Mild to Moderate 137 0 6 (4.4) 40 (29.2) 66 (48.2) 24 (17.5) 1 (0.7) Moderate to Severe 33 0 1 (3) 1 (3) 8 (24.2) 19 (57.6) 4 (12.1) Severe 1 0 0 0 0 0 1 (100) Total 1370 125 (9.1) 596 (43.5) 362 (26.4) 193 (14.1) 72 (5.2) 17 (1.2) Abbreviations: eGFR=estimated glomerular filtration rate; N/n=number of patients. Notes: eGFR was calculated using Modification in Diet in Renal Disease method (MDRD). Notes: Grading is based on Kidney Disease Improving Global Outcomes (KDIGO) Classification by eGFR: Normal: greater than or equal to 90, Mild: 60 to less than 90, Mild to Moderate: 45 to less than 60, Moderate to Severe: 30 to less than 45, Severe: 15 to less than 30, Kidney Failure: less than 15 ml/min/1.73 m2. *Among the 1372 patients, eGFR was missing in 7 patients at baseline or on-therapy. There were no patients with kidney failure at baseline.
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adverse reactions
6 ADVERSE REACTIONS The following clinically significant adverse reactions are discussed in greater detail in other sections of the labeling: Gastrointestinal toxicity [see Warnings and Precautions (5.1)] . Myelosuppression [see Warnings and Precautions (5.2)] . Hepatic toxicity [see Warnings and Precautions (5.3)] . Cardiovascular toxicity [see Warnings and Precautions (5.4)]. Fluid retention [see Warnings and Precautions (5.5)] . Renal toxicity [see Warnings and Precautions ( 5.6)] . • Most common adverse reactions (≥20%), in adult patients with CML are diarrhea, abdominal pain, vomiting, nausea, rash, fatigue, hepatic dysfunction, headache, pyrexia, and respiratory tract infection. The most common laboratory abnormalities (≥20%) in adult patients are creatinine increased, hemoglobin decreased, lymphocyte count decreased, platelets decreased, ALT increased, calcium decreased, white blood cell count decreased, AST increased, absolute neutrophil count decreased, glucose increased, phosphorus decreased, urate increased, alkaline phosphatase increased, lipase increased, creatine kinase increased, and amylase increased. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Alembic Pharmaceuticals Limited at 1-866-210-9797 or 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 most common adverse reactions, in ≥20% of adults with resistance or intolerance to prior therapy (N=814) were diarrhea (80%), rash (44%), nausea (44%), abdominal pain (43%), vomiting (33%), fatigue (33%), hepatic dysfunction (33%), respiratory tract infection (25%), pyrexia (24%), and headache (21%). The most common laboratory abnormalities that worsened from baseline in ≥20% of adults were creatinine increased (93%), hemoglobin decreased (90%), lymphocyte count decreased (72%), platelets decreased (69%), ALT increased (58%), calcium decreased (53%), white blood cell count decreased (52%), absolute neutrophils count decreased (50%), AST increased (50%), glucose increased (46%), phosphorus decreased (44%), urate increased (41%), alkaline phosphatase increased (40%), lipase increased (36%), creatine...