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adverse reactions
6 ADVERSE REACTIONS Commonly observed adverse reactions (incidence ≥5% and at least twice the incidence for placebo) were: Schizophrenia: Somnolence, respiratory tract infection ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Sandoz Inc. at 1-800-525-8747 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch 6.1 Clinical Trials Experience 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. Clinical trials for oral ziprasidone included approximately 5,700 patients and/or normal subjects exposed to one or more doses of ziprasidone. Of these 5700, over 4800 were patients who participated in multiple-dose effectiveness trials, and their experience corresponded to approximately 1,831 patient-years. These patients include: (1) 4,331 patients who participated in multiple-dose trials, predominantly in schizophrenia, representing approximately 1698 patient-years of exposure as of February 5, 2000. The conditions and duration of treatment with ziprasidone included open-label and double-blind studies, inpatient and outpatient studies, and short-term and longer-term exposure. Adverse reactions during exposure were obtained by collecting voluntarily reported adverse experiences, as well as results of physical examinations, vital signs, weights, laboratory analyses, ECGs, and results of ophthalmologic examinations. The stated frequencies of adverse reactions represent the proportion of individuals who experienced, at least once, a treatment-emergent adverse reaction of the type listed. A reaction was considered treatment emergent if it occurred for the first time or worsened while receiving therapy following baseline evaluation. Adverse Findings Observed in Short-Term, Placebo-Controlled Trials with Oral Ziprasidone The following findings are based on the short-term placebo-controlled premarketing trials for schizophrenia (a pool of two 6-week, and two 4-week fixed-dose trials) in which ziprasidone was administered in doses ranging from 10 to 200 mg/day. Commonly Observed Adverse Reactions in Short Term-Placebo-Controlled Trials The following adverse reactions were the most commonly observed adverse reactions associated with the use of ziprasidone (incidence of 5% or greater) and not observed at an equivalent incidence among placebo-treated patients (ziprasidone incidence at least twice that for placebo): Schizophrenia trials (see Table 6) Somnolence Respiratory Tract Infection SCHIZOPHRENIA Adverse Reactions Associated with Discontinuation of Treatment in Short-Term, Placebo-Controlled Trials of Oral Ziprasidone Approximately 4.1% (29/702) of ziprasidone-treated patients in short-term, placebo-controlled studies discontinued treatment due to an adverse reaction, compared with about 2.2% (6/273) on placebo. The most common reaction associated with dropout was rash, including 7 dropouts for rash among ziprasidone patients (1%) compared to no placebo patients [see WARNINGS AND PRECAUTIONS ( 5.7 ) ]. Adverse Reactions Occurring at an Incidence of 2% or More Among Ziprasidone-Treated Patients in Short-Term, Oral, Placebo-Controlled Trials Table 6 enumerates the incidence, rounded to the nearest percent, of treatment-emergent adverse reactions that occurred during acute therapy (up to 6 weeks) in predominantly patients with schizophrenia, including only those reactions that occurred in 2% or more of patients treated with ziprasidone and for which the incidence in patients treated with ziprasidone was greater than the incidence in placebo-treated patients. Table 6 Treatment-Emergent Adverse Reaction Incidence In Short-Term Oral Placebo-Controlled Trials - Schizophrenia Percentage of Patients Reporting Reaction Body System/Adverse Reaction Ziprasidone (N=702) Placebo (N=273) Body as a Whole Asthenia 5 3 Accidental Injury 4 2 Chest Pain 3 2 Cardiovascular Tachycardia 2 1 Digestive Nausea 10 7 Constipation 9 8 Dyspepsia 8 7 Diarrhea 5 4 Dry Mouth 4 2 Anorexia 2 1 Nervous Extrapyramidal Symptoms Extrapyramidal Symptoms includes the following adverse reaction terms: extrapyramidal syndrome, hypertonia, dystonia, dyskinesia, hypokinesia, tremor, paralysis and twitching. None of these adverse reactions occurred individually at an incidence greater than 5% in schizophrenia trials. 14 8 Somnolence 14 7 Akathisia 8 7 Dizziness Dizziness includes the adverse reaction terms dizziness and lightheadedness. 8 6 Respiratory Respiratory Tract Infection 8 3 Rhinitis 4 2 Cough Increased 3 1 Skin and Appendages Rash 4 3 Fungal Dermatitis 2 1 Special Senses Abnormal Vision 3 2 Dose Dependency of Adverse Reactions in Short-Term, Fixed-Dose, Placebo-Controlled Trials An analysis for dose response in the schizophrenia 4-study pool revealed an apparent relation of adverse reaction to dose for the following reactions: asthenia, postural hypotension, anorexia, dry mouth, increased salivation, arthralgia, anxiety, dizziness, dystonia, hypertonia, somnolence, tremor, rhinitis, rash, and abnormal vision. Extrapyramidal Symptoms (EPS) The incidence of reported EPS (which included the adverse reaction terms extrapyramidal syndrome, hypertonia, dystonia, dyskinesia, hypokinesia, tremor, paralysis and twitching) for ziprasidone-treated patients in the short-term, placebo-controlled schizophrenia trials was 14% vs. 8% for placebo. Objectively collected data from those trials on the Simpson-Angus Rating Scale (for EPS) and the Barnes Akathisia Scale (for akathisia) did not generally show a difference between ziprasidone and placebo. Dystonia Class Effect: Symptoms of dystonia, prolonged abnormal contractions of muscle groups, may occur in susceptible individuals during the first few days of treatment. Dystonic symptoms include: spasm of the neck muscles, sometimes progressing to tightness of the throat, swallowing difficulty, difficulty breathing, and/or protrusion of the tongue. While these symptoms can occur at low doses, they occur more frequently and with greater severity with high potency and at higher doses of first generation antipsychotic drugs. An elevated risk of acute dystonia is observed in males and younger age groups. Vital Sign Changes Ziprasidone is associated with orthostatic hypotension [see WARNINGS AND PRECAUTIONS ( 5.8 )]. ECG Changes Ziprasidone is associated with an increase in the QTc interval [see WARNINGS AND PRECAUTIONS ( 5.2 ) ] . In the schizophrenia trials, ziprasidone was associated with a mean increase in heart rate of 1.4 beats per minute compared to a 0.2 beats per minute decrease among placebo patients. Other Adverse Reactions Observed During the Premarketing Evaluation of Oral Ziprasidone Following is a list of COSTART terms that reflect treatment-emergent adverse reactions as defined in the introduction to the ADVERSE REACTIONS section reported by patients treated with ziprasidone in schizophrenia trials at multiple doses >4 mg/day within the database of 3,834 patients. All reported reactions are included except those already listed in Table 6 or elsewhere in labeling, those reaction terms that were so general as to be uninformative, reactions reported only once and that did not have a substantial probability of being acutely life-threatening, reactions that are part of the illness being treated or are otherwise common as background reactions, and reactions considered unlikely to be drug-related. It is important to emphasize that, although the reactions reported occurred during treatment with ziprasidone, they were not necessarily caused by it. Adverse reactions are further categorized by body system and listed in order of decreasing frequency according to the following definitions: Frequent - adverse reactions occurring in at least 1/100 patients (≥1% of patients) (only those not already listed in the tabulated results from placebo-controlled trials appear in this listing); Infrequent- adverse reactions occurring in 1/100 to 1/1000 patients (in 0.1 to 1% of patients) Rare - adverse reactions occurring in fewer than 1/1000 patients (<0.1% of patients). Body as a Whole Frequent - abdominal pain, flu syndrome, fever, accidental fall, face edema, chills, photosensitivity reaction, flank pain, hypothermia, motor vehicle accident Cardiovascular System Frequent - tachycardia, hypertension, postural hypotension Infrequent - bradycardia, angina pectoris, atrial fibrillation Rare - first degree AV block, bundle branch block, phlebitis, pulmonary embolus, cardiomegaly, cerebral infarct, cerebrovascular accident, deep thrombophlebitis, myocarditis, thrombophlebitis Digestive System Frequent - anorexia, vomiting Infrequent - rectal hemorrhage, dysphagia, tongue edema Rare - gum hemorrhage, jaundice, fecal impaction, gamma glutamyl transpeptidase increased, hematemesis, cholestatic jaundice, hepatitis, hepatomegaly, leukoplakia of mouth, fatty liver deposit, melena Endocrine Rare - hypothyroidism, hyperthyroidism, thyroiditis Hemic and Lymphatic System Infrequent - anemia, ecchymosis, leukocytosis, leukopenia, eosinophilia, lymphadenopathy Rare - thrombocytopenia, hypochromic anemia, lymphocytosis, monocytosis, basophilia, lymphedema, polycythemia, thrombocythemia Metabolic and Nutritional Disorders Infrequent - thirst, transaminase increased, peripheral edema, hyperglycemia, creatine phosphokinase increased, alkaline phosphatase increased, hypercholesteremia, dehydration, lactic dehydrogenase increased, albuminuria, hypokalemia Rare - BUN increased, creatinine increased, hyperlipemia, hypocholesteremia, hyperkalemia, hypochloremia, hypoglycemia, hyponatremia, hypoproteinemia, glucose tolerance decreased, gout, hyperchloremia, hyperuricemia, hypocalcemia, hypoglycemicreaction, hypomagnesemia, ketosis, respiratory alkalosis Musculoskeletal System Frequent - myalgia Infrequent - tenosynovitis Rare - myopathy Nervous System Frequent - agitation, extrapyramidal syndrome, tremor, dystonia, hypertonia, dyskinesia, hostility, twitching, paresthesia, confusion, vertigo, hypokinesia, hyperkinesia, abnormal gait, oculogyric crisis, hypesthesia, ataxia, amnesia, cogwheel rigidity, delirium, hypotonia, akinesia, dysarthria, withdrawal syndrome, buccoglossal syndrome, choreoathetosis, diplopia, incoordination, neuropathy Infrequent - paralysis Rare - myoclonus, nystagmus, torticollis, circumoral paresthesia, opisthotonos, reflexes increased, trismus Respiratory System Frequent - dyspnea Infrequent - pneumonia, epistaxis Rare - hemoptysis, laryngismus Skin and Appendages Infrequent - maculopapular rash, urticaria, alopecia, eczema, exfoliative dermatitis, contact dermatitis, vesiculobullous rash Special Senses Frequent - fungal dermatitis Infrequent - conjunctivitis, dry eyes, tinnitus, blepharitis, cataract, photophobia Rare - eye hemorrhage, visual field defect, keratitis, keratoconjunctivitis Urogenital System Infrequent - impotence, abnormal ejaculation, amenorrhea, hematuria, menorrhagia, female lactation, polyuria, urinary retention metrorrhagia, male sexual dysfunction, anorgasmia, glycosuria Rare - gynecomastia, vaginal hemorrhage, nocturia, oliguria, female sexual dysfunction, uterine hemorrhage 6.2 Postmarketing Experience The following adverse reactions have been identified during post approval use of ziprasidone hydrochloride. 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. Adverse reaction reports not listed above that have been received since market introduction include rare occurrences of the following : Cardiac Disorders: Tachycardia, torsade de pointes (in the presence of multiple confounding factors), [see WARNINGS AND PRECAUTIONS ( 5.2 ) ] ; Digestive System Disorders: Swollen Tongue; Reproductive System and Breast Disorders: Galactorrhea, priapism; Nervous System Disorders: Facial Droop, neuroleptic malignant syndrome, serotonin syndrome (alone or in combination with serotonergic medicinal products), tardive dyskinesia; Psychiatric Disorders: Insomnia, mania/hypomania; Skin and subcutaneous Tissue Disorders: Allergic reaction (such as allergic dermatitis, angioedema, orofacial edema, urticaria), rash, Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS); Urogenital System Disorders: Enuresis, urinary incontinence; Vascular Disorders: Postural hypotension, syncope.