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 FYARRO was assessed in a single-arm study (AMPECT). Thirty-four patients received FYARRO 100 mg/m
The median age of patients who received FYARRO was 59.5 years (range 27 to 78 years), 82% were female and Eastern Cooperative Oncology Group (ECOG) Performance Status was 0 (76%) or 1 (24%). Race was 71% White, 9% Black, 9% Asian, 3% Hawaiian/Pacific Islander and 9% Other/Not Reported. Ethnicity was 82% not Hispanic or Latino, 15% Hispanic or Latino, and 3% Not Reported.
Serious adverse reactions occurred in 14 (41%) patients who received FYARRO. Serious adverse reactions in >5% of patients, including 4 (12%) patients with infection and 2 (6%) patients each with abdominal pain, dehydration, and upper gastrointestinal hemorrhage. Fatal adverse reactions occurred in 1 (2.9%) patient who received FYARRO and experienced upper gastrointestinal hemorrhage.
Permanent discontinuation of FYARRO due to an adverse reaction occurred in 3 (9%) patients. Adverse reactions which resulted in permanent discontinuation of FYARRO included pneumonitis, anemia, and noninfective cystitis.
Dosage interruptions of FYARRO due to an adverse reaction occurred in 22 (65%) patients. Adverse reactions which required dosage interruption in >5% of patients included stomatitis in 6 (18%) patients, pneumonitis in 5 (15%) patients, anemia in 3 (9%) patients, and dehydration, dermatitis acneiform, and thrombocytopenia in 2 (6%) patients each.
Dose reductions of FYARRO due to an adverse reaction occurred in 12 (35%) patients. Adverse reactions which required dose reductions in >5% of patients included stomatitis and pneumonitis in 3 (9%) patients each.
The most common adverse reactions (≥30%) were stomatitis in 27 (79%) patients, fatigue and rash in 23 (68%) patients each, infection in 20 (59%) patients, nausea and edema in 17 (50%) patients each, diarrhea, musculoskeletal pain and decreased weight in 16 (47%) patients each, decreased appetite in 15 (44%) patients, cough in 12 (35%) patients, and vomiting and dysgeusia in 11 (32%) patients each. The most common Grade 3 to 4 laboratory abnormalities (≥6%) were decreased lymphocytes in 7 (21%) patients, increased glucose and decreased potassium in 4 (12%) patients each, decreased phosphate in 3 (9%) patients, and decreased hemoglobin and increased lipase in 2 (6%) patients each.
Table 4 summarizes the adverse reactions in AMPECT. Table 5 summarizes the laboratory abnormalities in AMPECT. Clinically relevant adverse reactions occurring in <10% of patients included enteritis, edema, pancytopenia, acute kidney injury, and acute coronary syndrome.