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adverse reactions
6 ADVERSE REACTIONS When using olanzapine and fluoxetine in combination, also refer to the Adverse Reactions section of the package insert for Symbyax. Most common adverse reactions (≥5% and at least twice that for placebo) associated with: Oral Olanzapine Monotherapy: Schizophrenia (Adults) – postural hypotension, constipation, weight gain, dizziness, personality disorder, akathisia ( 6.1 ) Schizophrenia (Adolescents) – sedation, weight increased, headache, increased appetite, dizziness, abdominal pain, pain in extremity, fatigue, dry mouth ( 6.1 ) Manic or Mixed Episodes, Bipolar I Disorder (Adults) – asthenia, dry mouth, constipation, increased appetite, somnolence, dizziness, tremor ( 6.1 ) Manic or Mixed Episodes, Bipolar I Disorder (Adolescents) – sedation, weight increased, increased appetite, headache, fatigue, dizziness, dry mouth, abdominal pain, pain in extremity ( 6.1 ) Combination of Olanzapine and Lithium or Valproate: Manic or Mixed Episodes, Bipolar I Disorder (Adults) – dry mouth, weight gain, increased appetite, dizziness, back pain, constipation, speech disorder, increased salivation, amnesia, paresthesia ( 6.1 ) Olanzapine and Fluoxetine in Combination: Also refer to the Adverse Reactions section of the package insert for Symbyax. ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Lannett Company, Inc. at 1-844-834-0530 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 or predict the rates observed in practice. Clinical Trials in Adults The information below for olanzapine is derived from a clinical trial database for olanzapine consisting of 10,504 adult patients with approximately 4765 patient-years of exposure to olanzapine plus 722 patients with exposure to intramuscular olanzapine for injection. This database includes: (1) 2500 patients who participated in multiple-dose oral olanzapine premarketing trials in schizophrenia and Alzheimer's disease representing approximately 1122 patient-years of exposure as of February 14, 1995; (2) 182 patients who participated in oral olanzapine premarketing bipolar I disorder (manic or mixed episodes) trials representing approximately 66 patient-years of exposure; (3) 191 patients who participated in an oral olanzapine trial of patients having various psychiatric symptoms in association with Alzheimer's disease representing approximately 29 patient-years of exposure; (4)5788 additional patients from 88 oral olanzapine clinical trials as of December 31, 2001; (5) 1843 additional patients from 41 olanzapine clinical trials as of October 31, 2011; and (6) 722 patients who participated in intramuscular olanzapine for injection premarketing trials in agitated patients with schizophrenia, bipolar I disorder (manic or mixed episodes), or dementia. Also included below is information from the premarketing 6-week clinical study database for olanzapine in combination with lithium or valproate, consisting of 224 patients who participated in bipolar I disorder (manic or mixed episodes) trials with approximately 22 patient-years of exposure. The conditions and duration of treatment with olanzapine varied greatly and included (in overlapping categories) open-label and double-blind phases of studies, inpatients and outpatients, fixed-dose and dose-titration studies, and short-term or longer-term exposure. Adverse reactions were assessed by collecting adverse reactions, results of physical examinations, vital signs, weights, laboratory analytes, ECGs, chest x-rays, and results of ophthalmologic examinations. Certain portions of the discussion below relating to objective or numeric safety parameters, namely, dose-dependent adverse reactions, vital sign changes, weight gain, laboratory changes, and ECG changes are derived from studies in patients with schizophrenia and have not been duplicated for bipolar I disorder (manic or mixed episodes) or agitation. However, this information is also generally applicable to bipolar I disorder (manic or mixed episodes) and agitation. Adverse reactions during exposure were obtained by spontaneous report and recorded by clinical investigators using terminology of their own choosing. Consequently, it is not possible to provide a meaningful estimate of the proportion of individuals experiencing adverse reactions without first grouping similar types of reactions into a smaller number of standardized reaction categories. In the tables and tabulations that follow, MedDRA and COSTART Dictionary terminology has been used to classify reported adverse reactions. 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. The reported reactions do not include those reaction terms that were so general as to be uninformative. Reactions listed elsewhere in labeling may not be repeated below. It is important to emphasize that, although the reactions occurred during treatment with olanzapine, they were not necessarily caused by it. The entire label should be read to gain a complete understanding of the safety profile of olanzapine. The prescriber should be aware that the figures in the tables and tabulations cannot be used to predict the incidence of side effects in the course of usual medical practice where patient characteristics and other factors differ from those that prevailed in the clinical trials. Similarly, the cited frequencies cannot be compared with figures obtained from other clinical investigations involving different treatments, uses, and investigators. The cited figures, however, do provide the prescribing healthcare provider with some basis for estimating the relative contribution of drug and nondrug factors to the adverse reactions incidence in the population studied. Incidence of Adverse Reactions in Short-Term, Placebo-Controlled and Combination Trials The following findings are based on premarketing trials of oral olanzapine for schizophrenia, bipolar I disorder (manic or mixed episodes), a subsequent trial of patients having various psychiatric symptoms in association with Alzheimer's disease, and premarketing combination trials. Adverse Reactions Associated with Discontinuation of Treatment in Short-Term, Placebo-Controlled Trials Schizophrenia — Overall, there was no difference in the incidence of discontinuation due to adverse reactions (5% for oral olanzapine vs 6% for placebo). However, discontinuations due to increases in ALT were considered to be drug related (2% for oral olanzapine vs 0% for placebo). Bipolar I Disorder (Manic or Mixed Episodes) Monotherapy — Overall, there was no difference in the incidence of discontinuation due to adverse reactions (2% for oral olanzapine vs 2% for placebo). Adverse Reactions Associated with Discontinuation of Treatment in Short-Term Combination Trials Bipolar I Disorder (Manic or Mixed Episodes), Olanzapine as Adjunct to Lithium or Valproate — In a study of patients who were already tolerating either lithium or valproate as monotherapy, discontinuation rates due to adverse reactions were 11% for the combination of oral olanzapine with lithium or valproate compared to 2% for patients who remained on lithium or valproate monotherapy. Discontinuations with the combination of oral olanzapine and lithium or valproate that occurred in more than 1 patient were: somnolence (3%), weight gain (1%), and peripheral edema (1%). Commonly Observed Adverse Reactions in Short-Term, Placebo-Controlled Trials The most commonly observed adverse reactions associated with the use of oral olanzapine (incidence of 5% or greater) and not observed at an equivalent incidence among placebo-treated patients (olanzapine incidence at least twice that for placebo) were: Table 9: Common Treatment-Emergent Adverse Reactions Associated with the Use of Oral Olanzapine in 6-Week Trials — SCHIZOPHRENIA a Personality disorder is the COSTART term for designating nonaggressive objectionable behavior. Adverse Reaction Percentage of Patients Reporting Event Olanzapine (N=248) Placebo (N=118) Postural hypotension 5 2 Constipation 9 3 Weight gain 6 1 Dizziness 11 4 Personality disorder a 8 4 Akathisia 5 1 Table 10: Common Treatment-Emergent Adverse Reactions Associated with the Use of Oral Olanzapine in 3-Week and 4-Week Trials — Bipolar I Disorder (Manic or Mixed Episodes) Adverse Reaction Percentage of Patients Reporting Event Olanzapine (N=125) Placebo (N=129) Asthenia 15 6 Dry mouth 22 7 Constipation 11 5 Dyspepsia 11 5 Increased appetite 6 3 Somnolence 35 13 Dizziness 18 6 Tremor 6 3 Adverse Reactions Occurring at an Incidence of 2% or More among Oral Olanzapine-Treated Patients in Short-Term, Placebo-Controlled Trials Table 11 enumerates the incidence, rounded to the nearest percent, of treatment-emergent adverse reactions that occurred in 2% or more of patients treated with oral olanzapine (doses ≥2.5 mg/day) and with incidence greater than placebo who participated in the acute phase of placebo-controlled trials. Table 11: Treatment-Emergent Adverse Reactions: Incidence in Short-Term, Placebo-Controlled Clinical Trials with Oral Olanzapine Body System/Adverse Reaction Percentage of Patients Reporting Event Olanzapine (N=532) Placebo (N=294) Body as a Whole Accidental injury 12 8 Asthenia 10 9 Fever 6 2 Back pain 5 2 Chest pain 3 1 Cardiovascular System Postural hypotension 3 1 Tachycardia 3 1 Hypertension 2 1 Digestive System Dry mouth 9 5 Constipation 9 4 Dyspepsia 7 5 Vomiting 4 3 Increased appetite 3 2 Hemic and Lymphatic System Ecchymosis 5 3 Metabolic and Nutritional Disorders Weight gain 5 3 Peripheral edema 3 1 Musculoskeletal System Extremity pain (other than joint) 5 3 Joint pain 5 3 Nervous System Somnolence 29 13 Insomnia 12 11 Dizziness 11 4 Abnormal gait 6 1 Tremor 4 3 Akathisia 3 2 Hypertonia 3 2 Articulation impairment 2 1 Respiratory System Rhinitis 7 6 Cough increased 6 3 Pharyngitis 4 3 Special Senses Amblyopia 3 2 Urogenital System Urinary incontinence 2 1 Urinary tract infection 2 1 Dose Dependency of Adverse Reactions A dose group difference has been observed for fatigue, dizziness, weight gain and prolactin elevation. In a single 8-week randomized, double-blind, fixed-dose study comparing 10 mg/day (N=199), 20 mg/day (N=200) and 40 mg/day (N=200) of oral olanzapine in adult patients with schizophrenia or schizoaffective disorder, incidence of fatigue (10 mg/day: 1.5%; 20 mg/day: 2.1%; 40 mg/day: 6.6%) was observed with significant differences between 10 mg/day vs 40 mg/day and 20 mg/day vs 40 mg/day. The incidence of dizziness (10 mg/day: 2.6%; 20 mg/day: 1.6%; 40 mg/day: 6.6%) was observed with significant differences between 20 mg vs 40 mg. Dose group differences were also noted for weight gain and prolactin elevation [see Warnings and Precautions ( 5.5 , 5.15 )] . The following table addresses dose relatedness for other adverse reactions using data from a schizophrenia trial involving fixed dosage ranges of oral olanzapine. It enumerates the percentage of patients with treatment-emergent adverse reactions for the 3 fixed-dose range groups and placebo. The data were analyzed using the Cochran-Armitage test, excluding the placebo group, and the table includes only those adverse reactions for which there was a trend. Table 12: Percentage of Patients from a Schizophrenia Trial with Treatment-Emergent Adverse Reactions for the 3 Dose Range Groups and Placebo Percentage of Patients Reporting Event Olanzapine Olanzapine Olanzapine Placebo 5 mg/day ± 2.5 mg/day 10 mg/day ± 2.5 mg/day 15 mg/day ± 2.5 mg/day Adverse Reaction (N=68) (N=65) (N=64) (N=69) Asthenia 15 8 9 20 Dry mouth 4 3 5 13 Nausea 9 0 2 9 Somnolence 16 20 30 39 Tremor 3 0 5 7 Commonly Observed Adverse Reactions in Short-Term Trials of Oral Olanzapine as Adjunct to Lithium or Valproate In the bipolar I disorder (manic or mixed episodes) adjunct placebo-controlled trials, the most commonly observed adverse reactions associated with the combination of olanzapine and lithium or valproate (incidence of ≥5% and at least twice placebo) were: Table 13: Common Treatment-Emergent Adverse Reactions Associated with the Use of Oral Olanzapine in 6-Week Adjunct to Lithium or Valproate Trials — Bipolar I Disorder (Manic or Mixed Episodes) Adverse Reaction Percentage of Patients Reporting Event Olanzapine with lithium or valproate (N=229) Placebo with lithium or valproate (N=115) Dry mouth 32 9 Weight gain 26 7 Increased appetite 24 8 Dizziness 14 7 Back pain 8 4 Constipation 8 4 Speech disorder 7 1 Increased salivation 6 2 Amnesia 5 2 Paresthesia 5 2 Adverse Reactions Occurring at an Incidence of 2% or More among Oral Olanzapine-Treated Patients in Short-Term Trials of Olanzapine as Adjunct to Lithium or Valproate Table 14 enumerates the incidence, rounded to the nearest percent, of treatment-emergent adverse reactions that occurred in 2% or more of patients treated with the combination of olanzapine (doses ≥5 mg/day) and lithium or valproate and with incidence greater than lithium or valproate alone who participated in the acute phase of placebo-controlled combination trials. Table 14: Treatment-Emergent Adverse Reactions: Incidence in Short-Term, Placebo-Controlled Clinical Trials of Oral Olanzapine as Adjunct to Lithium or Valproate a Denominator used was for females only (olanzapine, N=128; placebo, N=51). Body System/Adverse Reaction Percentage of Patients Reporting Event Olanzapine with lithium or valproate (N=229) Placebo with lithium or valproate (N=115) Body as a Whole Asthenia 18 13 Back pain 8 4 Accidental injury 4 2 Chest pain 3 2 Cardiovascular System Hypertension 2 1 Digestive System Dry mouth 32 9 Increased appetite 24 8 Thirst 10 6 Constipation 8 4 Increased salivation 6 2 Metabolic and Nutritional Disorders Weight gain 26 7 Peripheral edema 6 4 Edema 2 1 Nervous System Somnolence 52 27 Tremor 23 13 Depression 18 17 Dizziness 14 7 Speech disorder 7 1 Amnesia 5 2 Paresthesia 5 2 Apathy 4 3 Confusion 4 1 Euphoria 3 2 Incoordination 2 0 Respiratory System Pharyngitis 4 1 Dyspnea 3 1 Skin and Appendages Sweating 3 1 Acne 2 0 Dry skin 2 0 Special Senses Amblyopia 9 5 Abnormal vision 2 0 Urogenital System Dysmenorrhea a 2 0 Vaginitis a 2 0 For specific information about the adverse reactions observed with lithium or valproate, refer to the Adverse Reactions section of the package inserts for these other products. Extrapyramidal Symptoms The following table enumerates the percentage of patients with treatment-emergent extrapyramidal symptoms as assessed by categorical analyses of formal rating scales during acute therapy in a controlled clinical trial comparing oral olanzapine at 3 fixed doses with placebo in the treatment of schizophrenia in a 6-week trial. Table 16: Treatment-Emergent Extrapyramidal Symptoms Assessed by Rating Scales Incidence in a Fixed Dosage Range, Placebo-Controlled Clinical Trial of Oral Olanzapine in Schizophrenia — Acute Phase a Percentage of patients with a Simpson-Angus Scale total score >3. b Percentage of patients with a Barnes Akathisia Scale global score ≥2. Percentage of Patients Reporting Event Placebo Olanzapine 5 mg/day ± 2.5 mg/day Olanzapine 10 mg/day ± 2.5 mg/day Olanzapine 15 mg/day ± 2.5 mg/day Parkinsonism a 15 14 12 14 Akathisia b 23 16 19 27 The following table enumerates the percentage of patients with treatment-emergent extrapyramidal symptoms as assessed by spontaneously reported adverse reactions during acute therapy in the same controlled clinical trial comparing olanzapine at 3 fixed doses with placebo in the treatment of schizophrenia in a 6-week trial. Table 17: Treatment-Emergent Extrapyramidal Symptoms Assessed by Adverse Reactions Incidence in a Fixed Dosage Range, Placebo-Controlled Clinical Trial of Oral Olanzapine in Schizophrenia — Acute Phase a Patients with the following COSTART terms were counted in this category: dystonia, generalized spasm, neck rigidity, oculogyric crisis, opisthotonos, torticollis. b Patients with the following COSTART terms were counted in this category: akinesia, cogwheel rigidity, extrapyramidal syndrome, hypertonia, hypokinesia, masked facies, tremor. c Patients with the following COSTART terms were counted in this category: akathisia, hyperkinesia. d Patients with the following COSTART terms were counted in this category: buccoglossal syndrome, choreoathetosis, dyskinesia, tardive dyskinesia. e Patients with the following COSTART terms were counted in this category: movement disorder, myoclonus, twitching. Percentage of Patients Reporting Event Placebo (N=68) Olanzapine 5 mg/day ± 2.5 mg/day (N=65) Olanzapine 10 mg/day ± 2.5 mg/day (N=64) Olanzapine 15 mg/day ± 2.5 mg/day (N=69) Dystonic events a 1 3 2 3 Parkinsonism events b 10 8 14 20 Akathisia events c 1 5 11 10 Dyskinetic events d 4 0 2 1 Residual events e 1 2 5 1 Any extrapyramidal event 16 15 25 32 The following table enumerates the percentage of adolescent patients with treatment-emergent extrapyramidal symptoms as assessed by spontaneously reported adverse reactions during acute therapy (dose range: 2.5 mg/day to 20 mg/day). Table 18: Treatment-Emergent Extrapyramidal Symptoms Assessed by Adverse Reactions Incidence in Placebo-Controlled Clinical Trials of Oral Olanzapine in Schizophrenia and Bipolar I Disorder — Adolescents a Categories are based on Standard MedDRA Queries (SMQ) for extrapyramidal symptoms as defined in MedDRA version 12.0. Percentage of Patients Reporting Event Placebo Olanzapine Categories a (N=89) (N=179) Dystonic events 0 1 Parkinsonism events 2 1 Akathisia events 4 6 Dyskinetic events 0 1 Nonspecific events 0 4 Any extrapyramidal event 6 10 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, the frequency and severity are greater with high potency and at higher doses of first generation antipsychotic drugs. In general, an elevated risk of acute dystonia may be observed in males and younger age groups receiving antipsychotics; however, events of dystonia have been reported infrequently (<1%) with olanzapine use. Other Adverse Reactions Other Adverse Reactions Observed During the Clinical Trial Evaluation of Oral Olanzapine Following is a list of treatment-emergent adverse reactions reported by patients treated with oral olanzapine (at multiple doses ≥1 mg/day) in clinical trials. This listing is not intended to include reactions (1) already listed in previous tables or elsewhere in labeling, (2) for which a drug cause was remote, (3) which were so general as to be uninformative, (4) which were not considered to have significant clinical implications, or (5) which occurred at a rate equal to or less than placebo. Reactions are classified by body system using the following definitions: frequent adverse reactions are those occurring in at least 1/100 patients; infrequent adverse reactions are those occurring in 1/100 to 1/1000 patients; rare reactions are those occurring in fewer than 1/1000 patients. Body as a Whole — Infrequent: chills, face edema, photosensitivity reaction, suicide attempt 1 ; Rare: chills and fever, hangover effect, sudden death 1 . Cardiovascular System — Infrequent: cerebrovascular accident, vasodilatation. Digestive System — Infrequent: abdominal distension, nausea and vomiting, tongue edema; Rare: ileus, intestinal obstruction, liver fatty deposit. Hemic and Lymphatic System — Infrequent: thrombocytopenia. Metabolic and Nutritional Disorders — Frequent: alkaline phosphatase increased; Infrequent: bilirubinemia, hypoproteinemia. Musculoskeletal System — Rare: osteoporosis. Nervous System — Infrequent: ataxia, dysarthria, libido decreased, stupor; Rare: coma. Respiratory System — Infrequent: epistaxis; Rare: lung edema. Skin and Appendages — Infrequent: alopecia. Special Senses — Infrequent: abnormality of accommodation, dry eyes; Rare: mydriasis. Urogenital System — Infrequent: amenorrhea 2 , breast pain, decreased menstruation, impotence 2 , increased menstruation 2 , menorrhagia 2 , metrorrhagia 2 , polyuria 2 , urinary frequency, urinary retention, urinary urgency, urination impaired. 1 These terms represent serious adverse events but do not meet the definition for adverse drug reactions. They are included here because of their seriousness. 2 Adjusted for gender.