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 safety of REVUFORJ reflects exposure in 241 patients (207 adult and 34 pediatric patients) with relapsed or refractory (R/R) acute leukemia with a
Fatal adverse reactions occurred in 9 (4%) patients who received REVUFORJ, including 4 with sudden death, 2 with differentiation syndrome, 2 with hemorrhage, and 1 with cardiac arrest. Serious adverse reactions were reported in 184 (76%) patients. The most frequent serious adverse reactions (≥ 10%) were infection (29%), febrile neutropenia (20%), bacterial infection (15%), differentiation syndrome (13%), and hemorrhage (11%).
Adverse reactions leading to dose interruption occurred in 49% of patients. The most common adverse reactions (≥ 5%) leading to dose interruption were electrocardiogram QT prolonged, infection, febrile neutropenia, differentiation syndrome, nausea, and hypokalemia. Adverse reactions leading to dose reduction occurred in 12% of patients who received REVUFORJ. Adverse reactions leading to a dose reduction (≥ 5%) included electrocardiogram QT prolonged. Adverse reactions leading to permanent discontinuation occurred in 20% of patients. Adverse reactions resulting in permanent discontinuation (> 1%) included infection.
The most common (≥ 20%) adverse reactions were phosphate increased, hemorrhage, nausea, infection without identified pathogen, aspartate aminotransferase increased, alanine aminotransferase increased, creatinine increased, musculoskeletal pain, febrile neutropenia, electrocardiogram QT prolonged, potassium decreased, parathyroid hormone intact increased, alkaline phosphatase increased, diarrhea, bacterial infection, triglycerides increased, differentiation syndrome, fatigue, edema, viral infection, phosphate decreased, decreased appetite, and constipation.
The common adverse reactions are summarised in Table 7.
Clinically relevant adverse reactions in less than 20% of patients who received REVUFORJ include:
Cardiac disorders: Premature ventricular complex, cardiac failure, pericardial effusion, ventricular tachycardia, cardiac arrest
Endocrine disorders: Hyperparathyroidism
Eye disorders: Cataract
Gastrointestinal disorders: Abdominal pain
General disorders and administration site conditions: Sudden death
Immune system disorders: Drug hypersensitivity
Metabolism and nutrition disorders: Hyponatremia, hyperkalemia
Nervous system disorders: Taste disorder, syncope, headache, paresthesia
Renal disorders: Renal impairment
Skin and subcutaneous disorders: Rash
Changes in selected post-baseline laboratory values that were observed in patients with relapsed or refractory acute leukemia are shown in Table 8.