All HES/CEL patients experienced at least one adverse reaction, the most common being gastrointestinal, cutaneous and musculoskeletal disorders. Hematologic abnormalities were also frequent, with instances of Grade 3 leukopenia, neutropenia, lymphopenia and anemia.
Frequently reported adverse reactions (all Grades) in the 12 DFSP patients assessed included nausea and fatigue (42% each); periorbital, peripheral and eye edema (33% each); diarrhea, vomiting, rash, lacrimation increased and anemia (25% each); face edema, pyrexia, exertional dyspnea, rhinitis, and anorexia (17% each).
The majority of patients who received Gleevec in the GIST study experienced adverse reactions at some time. Most adverse reactions were mild to moderate in severity. The most frequently reported adverse reactions (400 mg/day; 600 mg/day) (all Grades) were superficial edema (81%; 77%), nausea (63%; 74%), muscle cramps (47%; 58%), diarrhea (59%; 70%), fatigue (48%; 53%), abdominal pain (40%; 37%), rash and related terms (38%; 53%), vomiting (38%; 35%), musculoskeletal pain (37%; 30%) and hemorrhage (26%; 34%).*
* For more detailed study information, please see full Prescribing Information.
Supportive care may help management of some mild-to-moderate adverse reactions so that the prescribed dose can be maintained whenever possible. However, in some cases, either a dose reduction or interruption of treatment with Gleevec may be necessary.
Gleevec tablets should be taken with food and a large glass of water to minimize GI irritation. Gleevec tablets should not be taken with grapefruit juice and other foods known to inhibit CYP3A4.
Patients should be informed to take Gleevec exactly as prescribed, not
to change their dose or stop taking Gleevec unless they are told to do so
by their doctor. If patients miss a dose, they should be advised to take
their dose as so
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