6 ADVERSE REACTIONS The most common adverse events reported during clinical trials with fenofibrate (≥ 2% and at least 1% greater than placebo) were abnormal liver tests, increased AST, increased ALT, increased CPK, and rhinitis (6.1). To report SUSPECTED ADVERSE REACTIONS, contact AbbVie Inc. at 1-800-633-9110 or 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. Fenofibric acid is the active metabolite of fenofibrate. Adverse events reported by 2% or more of patients treated with fenofibrate and greater than placebo during double-blind, placebo-controlled trials are listed in Table 1. 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 tests were the most frequent events, causing discontinuation of fenofibrate treatment in 1.6% of patients in double-blind trials. Table 1. Adverse Events Reported by 2% or More of Patients Treated with Fenofibrate and Greater than Placebo During the Double-Blind, Placebo-Controlled Trials BODY SYSTEM Adverse Event Fenofibrate* (N = 439) Placebo (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% INVESTIGATIONS Abnormal Liver Tests 7.5% 1.4% Increased AST 3.4% 0.5% Increased ALT 3.0% 1.6% Increased Creatine Phosphokinase 3.0% 1.4% RESPIRATORY Respiratory Disorder 6.2% 5.5% Rhinitis 2.3% 1.1% * Dosage equivalent to 135 mg Trilipix Urticaria was seen in 1.1% vs. 0%, and rash in 1.4% vs. 0.8% of fenofibrate and placebo patients respectively in controlled trials. Clinical trials with Trilipix did not include a placebo-control arm. However, the adverse event profile of Trilipix was generally consistent with that of fenofibrate. The following adverse events not listed above were reported in ≥ 3% of patients taking Trilipix alone: Gastrointestinal Disorders: Diarrhea, dyspepsia General Disorders and Administration Site Conditions: Pain Infections and Infestations: Nasopharyngitis, sinusitis, upper respiratory tract infection Musculoskeletal and Connective Tissue Disorders: Arthralgia, myalgia, pain in extremity Nervous System Disorders: Dizziness 6.2 Postmarketing Experience The following adverse reactions have been identified during postapproval use of fenofibrate. 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: rhabdomyolysis, pancreatitis, renal failure, muscle spasms, acute renal failure, hepatitis, cirrhosis, anemia, asthenia, and severely depressed HDL-cholesterol levels. Photosensitivity reactions to fenofibrate have occurred days to months after initiation; in some of these cases, patients reported a prior photosensitivity reaction to ketoprofen.