6 ADVERSE REACTIONS The most common adverse reactions (> 2% and at least 1% greater than placebo) are abnormal liver tests, increased AST, increased ALT, increased CPK, and rhinitis (6). To report SUSPECTED ADVERSE REACTIONS, contact FDA at 1-800-FDA-1088 or www.fda.gov/medwatch 6.1 Clinical Trials Experience Because clinical studies are conducted under widely varying conditions, adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to rates in the clinical studies of another drug and may not reflect the rates observed in practice. Adverse events reported by 2% or more of patients treated with fenofibrate (and greater than placebo) during the double-blind, placebo-controlled trials, regardless of causality, are listed in Table 1 below. Adverse events led to discontinuation of treatment in 5.0% of patients treated with fenofibrate and in 3.0% treated with placebo. Increases in liver function tests were the most frequent events, causing discontinuation of fenofibrate treatment in 1.6% of patients in double-blind trials. Table 1. Adverse Reactions Reported by 2% or More of Patients Treated with Fenofibrate and Greater than Placebo During the Double-Blind, Placebo-Controlled Trials * Dosage equivalent to 145 mg Fenofibrate tablets for oral use. ** Significantly different from Placebo. BODY SYSTEM Fenofibrate* Placebo Adverse Reaction (N=439) (N=365) BODY AS A WHOLE Abdominal Pain 4.6% 4.4% Back Pain 3.4% 2.5% Headache 3.2% 2.7% DIGESTIVE Nausea 2.3% 1.9% Constipation 2.1% 1.4% METABOLIC AND NUTRITIONAL DISORDERS Abnormal Liver Function Tests 7.5%** 1.4% Increased ALT 3.0% 1.6% Increased CPK 3.0% 1.4% Increased AST 3.4%** 0.5% RESPIRATORY Respiratory Disorder 6.2% 5.5% Rhinitis 2.3% 1.1% 6.2 Postmarketing Experience The following adverse reactions have been identified during postapproval use of fenofibrate: myalgia, rhabdomyolysis, pancreatitis, acute renal failure, muscle spasm, hepatitis, cirrhosis, anemia, arthralgia, decreases in hemoglobin, decreases in hematocrit, white blood cell decreases, asthenia, and severely depressed HDL-cholesterol levels. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.