2.4 ML aripiprazole lauroxil 281.3 MG/ML Prefilled Syringe

INDICATIONS AND USAGE ARISTADA INITIO, in combination with oral aripiprazole, is indicated for the initiation of ARISTADA when used for the treatment of schizophrenia in adults. ARISTADA INITIO, in combination with oral aripiprazole, is indicated for the initiation of ARISTADA ® when used for the treatment of schizophrenia in adults ( 1 ).

DOSAGE AND ADMINISTRATION Administer ARISTADA by intramuscular injection in the deltoid (441 mg dose only) or gluteal (441 mg, 662 mg, 882 mg or 1064 mg) muscle by a healthcare professional ( 2.1 ). For patients naïve to aripiprazole, establish tolerability with oral aripiprazole prior to initiating treatment with ARISTADA ( 2.1 ). There are two options for initiating treatment with ARISTADA: Option #1: Administer one injection of 675 mg of ARISTADA INITIO ® and one 30 mg dose of oral aripiprazole in conjunction with the first ARISTADA injection. ( 2.1 ). Option #2: Administer 21 consecutive days of oral aripiprazole in conjunction with the first ARISTADA injection ( 2.1 ). ARISTADA can be initiated at a dose of 441 mg, 662 mg or 882 mg administered monthly, 882 mg dose every 6 weeks, or 1064 mg dose every 2 months ( 2.1 ). Dosing regimen adjustments may be required for missed doses ( 2.2 ). Dose adjustments are required for 1) known CYP2D6 poor metabolizers and 2) for patients taking CYP3A4 inhibitors, CYP2D6 inhibitors, or CYP3A4 inducers for more than 2 weeks ( 2.4 ). 2.1 Recommended Dosage ARISTADA is only to be administered as an intramuscular injection by a healthcare professional. For patients who have never taken aripiprazole, establish tolerability with oral aripiprazole prior to initiating treatment with ARISTADA. Due to the half-life of oral aripiprazole, it may take up to 2 weeks to fully assess tolerability. Refer to the prescribing information of oral aripiprazole for the recommended dosage and administration of the oral formulation. There are two ways to initiate treatment with ARISTADA: Option #1: Administer one intramuscular injection of ARISTADA INITIO 675 mg (in either the deltoid or gluteal muscle) and one dose of oral aripiprazole 30 mg in conjunction with the first ARISTADA injection. The first ARISTADA injection may be administered on the same day as ARISTADA INITIO or up to 10 days thereafter. See the ARISTADA INITIO prescribing information for additional information regarding administration of ARISTADA INITIO. Avoid injecting both ARISTADA INITIO and ARISTADA concomitantly into the same deltoid or gluteal muscle. Option #2: Administer 21 consecutive days of oral aripiprazole in conjunction with the first ARISTADA injection. Depending on individual patient's needs, treatment with ARISTADA can be initiated at a dose of 441 mg, 662 mg or 882 mg administered monthly, 882 mg administered every 6 weeks or 1064 mg administered every 2 months. The 441 mg, 662 mg, 882 mg and 1064 mg doses correspond to 300 mg, 450 mg, 600 mg and 724 mg of aripiprazole, respectively [see Clinical Pharmacology ( 12.3 )]. Table 1: ARISTADA Dosing Frequency and Site of Injection Dose Dosing Frequency Site of Intramuscular Injection 441 mg Monthly Deltoid or Gluteal 662 mg Monthly Gluteal 882 mg Monthly or every 6 weeks Gluteal 1064 mg Every 2 months Gluteal Use the following ARISTADA doses for patients who are stabilized on oral aripiprazole, as shown in Table 2 . Table 2: ARISTADA Doses Based on Oral Aripiprazole Total Daily Dose Oral Aripiprazole Dose Intramuscular ARISTADA Dose 10 mg per day 441 mg every month 15 mg per day 662 mg every month 882 mg every 6 weeks 1064 mg every 2 months 20 mg or higher per day 882 mg every month In conjunction with the first ARISTADA injection, administer a single injection of ARISTADA INITIO and one dose of oral aripiprazole 30 mg, or continue treatment with oral aripiprazole for 21 consecutive days [see Recommended Dosage ( 2.1 )]. Adjust the ARISTADA dose as needed. When making dose and dosing interval adjustments, consider the pharmacokinetics and prolonged-release characteristics of ARISTADA [see Clinical Pharmacology ( 12.3 )]. 2.2 Missed Doses When a dose of ARISTADA is missed, administer the next injection of ARISTADA as soon as possible. Depending on the time elapsed since the last ARISTADA injection, supplement the next ARISTADA injection as recommended in Table 3 below. Table 3: Recommendation for Concomitant Supplementation Following Missed Doses of ARISTADA Dose of Patient's Last ARISTADA Injection Length of Time Since Last Injection a The patient should supplement with the same dose of oral aripiprazole as when the patient began ARISTADA (see Table 2 ). 441 mg ≤ 6 weeks > 6 and ≤ 7 weeks > 7 weeks 662 mg ≤ 8 weeks > 8 and ≤ 12 weeks > 12 weeks 882 mg ≤ 8 weeks > 8 and ≤ 12 weeks > 12 weeks 1064 mg ≤ 10 weeks > 10 and ≤ 12 weeks > 12 weeks Dosage and Administration for Re-initiation of ARISTADA No Supplementation Required Supplement with a Single Dose of ARISTADA INITIO OR 7 Days of Oral Aripiprazole a Re-initiate with a Single Dose of ARISTADA INITIO and a Single Dose of Oral Aripiprazole 30 mg OR supplement with 21 Days of Oral Aripiprazole a 2.3 Early Dosing The recommended ARISTADA dosing interval is monthly for the 441 mg, 662 mg and 882 mg doses, every 6 weeks for the 882 mg dose, or every 2 months for the 1064 mg dose and should be maintained. In the event of early dosing, an ARISTADA injection should not be given earlier than 14 days after the previous injection. 2.4 Dose Adjustments for CYP450 Considerations Refer to the prescribing information for oral aripiprazole for recommendations regarding dosage adjustments due to drug interactions, for the first 21 days when the patient is taking 21 days of oral aripiprazole concomitantly with the first dose of ARISTADA. Avoid initiating ARISTADA treatment with ARISTADA INITIO in patients requiring dose adjustments. Once stabilized on ARISTADA, refer to the dosing recommendations below for patients taking strong CYP2D6 inhibitors, strong CYP3A4 inhibitors, or strong CYP3A4 inducers: No dosage changes recommended for ARISTADA, if CYP450 modulators are added for less than 2 weeks. Make dose changes to ARISTADA if CYP450 modulators are added for greater than 2 weeks (see Table 4 ). Table 4: ARISTADA Dose Adjustments with Concomitant CYP450 Modulator Use Concomitant Medicine Dose Change for ARISTADA a a For the 882 mg dose administered every 6 weeks and the 1064 mg administered every 2 months, the next lower strength should be 441 mg administered monthly. Strong CYP3A4 Inhibitor Reduce the dose of ARISTADA to the next lower strength. No dosage adjustment is necessary in patients taking 441 mg ARISTADA, if tolerated. For patients known to be poor metabolizers of CYP2D6 : Reduce dose to 441 mg from 662 mg, 882 mg, or 1064 mg. No dosage adjustment is necessary in patients taking 441 mg ARISTADA, if tolerated. Strong CYP2D6 Inhibitor Reduce the dose of ARISTADA to the next lower strength. No dosage adjustment is necessary in patients taking 441 mg ARISTADA, if tolerated. For patients known to be poor metabolizers of CYP2D6 : No dose adjustment required. Both Strong CYP3A4 Inhibitor and Strong CYP2D6 Inhibitor Avoid use for patients at 662 mg, 882 mg, or 1064 mg dose. No dosage adjustment is necessary in patients taking 441 mg ARISTADA, if tolerated. CYP3A4 Inducers No dose adjustment for 662 mg, 882 mg, or 1064 mg dose; increase the 441 mg dose to 662 mg. 2.5 Important Administration Instructions The kit contains a syringe containing ARISTADA sterile aqueous extended-release injectable suspension and 2 or 3 safety needles depending on dose (a 2-inch 20 gauge needle with yellow needle hub, a 1 ½-inch 20 gauge needle with yellow needle hub, and a 1-inch 21 gauge needle with green needle hub (441 mg kit only)) for intramuscular injection. All materials should be stored at room temperature. A | 5 mL syringe containing ARISTADA sterile aqueous extended-release injectable suspension B | 20 gauge needle, 2-inch with yellow needle hub C | 20 gauge needle, 1½-inch with yellow needle hub D | 21 gauge needle, 1-inch with green needle hub 1. TAP and vigorously SHAKE the syringe. 1a. Tap the syringe at least 10 times to dislodge any material which may have settled. 1b. Shake the syringe vigorously for a minimum of 30 seconds to ensure a uniform suspension. If the syringe is n

WARNINGS AND PRECAUTIONS Cerebrovascular Adverse Reactions in Elderly Patients with Dementia-Related Psychosis: Increased incidence of cerebrovascular adverse reactions (e.g., stroke, transient ischemia attack, including fatalities) ( 5.2 ). Potential for Dosing and Medication Errors : Substitution and dispensing errors between ARISTADA and ARISTADA INITIO could occur. Do not substitute ARISTADA INITIO for ARISTADA ( 5.3 ). Neuroleptic Malignant Syndrome : Manage with immediate discontinuation and close monitoring ( 5.4 ). Tardive Dyskinesia : Discontinue if clinically appropriate ( 5.5 ). Metabolic Changes : Monitor for hyperglycemia, dyslipidemia, and weight gain ( 5.6 ). Pathological Gambling and Other Compulsive Behaviors : Consider dose reduction or discontinuation ( 5.7 ). Orthostatic Hypotension : Monitor heart rate and blood pressure and warn patients with known cardiovascular or cerebrovascular disease, and risk of dehydration or syncope ( 5.8 ). Leukopenia, Neutropenia, and Agranulocytosis : Perform complete blood counts in patients with a history of a clinically significant low white blood cell (WBC) count. Consider discontinuation if clinically significant decline in WBC in the absence of other causative factors ( 5.10 ). Seizures : Use cautiously in patients with a history of seizures or with conditions that lower the seizure threshold ( 5.11 ). Potential for Cognitive and Motor Impairment : Use caution when operating machinery ( 5.12 ). 5.1 Increased Mortality in Elderly Patients with Dementia-related Psychosis Elderly patients with dementia-related psychosis treated with antipsychotic drugs are at an increased risk of death. Analyses of 17 placebo-controlled trials (modal duration of 10 weeks), largely in patients taking atypical antipsychotic drugs, revealed a risk of death in drug-treated patients of between 1.6 to 1.7 times the risk of death in placebo-treated patients. Over the course of a typical 10-week controlled trial, the rate of death in drug-treated patients was about 4.5%, compared to a rate of about 2.6% in the placebo group. Although the causes of death were varied, most of the deaths appeared to be either cardiovascular (e.g., heart failure, sudden death) or infectious (e.g., pneumonia) in nature. Observational studies suggest that, similar to atypical antipsychotic drugs, treatment with conventional antipsychotic drugs may increase mortality. The extent to which the findings of increased mortality in observational studies may be attributed to the antipsychotic drug as opposed to some characteristic(s) of the patients is not clear. ARISTADA is not approved for the treatment of patients with dementia-related psychosis [see Boxed Warning , Warnings and Precautions ( 5.2 )]. 5.2 Cerebrovascular Adverse Reactions, Including Stroke In placebo-controlled trials with risperidone, aripiprazole, and olanzapine in elderly patients with dementia, there was a higher incidence of cerebrovascular adverse reactions (cerebrovascular accidents and transient ischemic attacks) including fatalities compared to placebo-treated patients. ARISTADA is not approved for the treatment of patients with dementia-related psychosis [see Boxed Warning , Warnings and Precautions ( 5.1 )]. 5.3 Potential for Dosing and Medication Errors Medication errors, including substitution and dispensing errors, between ARISTADA and ARISTADA INITIO could occur. ARISTADA INITIO is for single administration in contrast to ARISTADA which is administered monthly, every 6 weeks, or every 8 weeks [see Dosage and Administration ( 2.1 )] . Do not substitute ARISTADA INITIO for ARISTADA because of differing pharmacokinetic profiles [see Clinical Pharmacology ( 12.3 )]. 5.4 Neuroleptic Malignant Syndrome A potentially fatal symptom complex sometimes referred to as Neuroleptic Malignant Syndrome (NMS) may occur in association with antipsychotic drugs, including ARISTADA. Clinical manifestations of NMS are hyperpyrexia, muscle rigidity, altered mental status, and evidence of autonomic instability (irregular pulse or blood pressure, tachycardia, diaphoresis, and cardiac dysrhythmia). Additional signs may include elevated creatine phosphokinase, myoglobinuria (rhabdomyolysis), and acute renal failure. The diagnostic evaluation of patients with this syndrome is complicated. In arriving at a diagnosis, it is important to identify cases in which the clinical presentation includes both serious medical illness (e.g., pneumonia, systemic infection, etc.) and untreated or inadequately treated extrapyramidal signs and symptoms (EPS). Other important considerations in the differential diagnosis include central anticholinergic toxicity, heat stroke, drug fever, and primary central nervous system pathology. The management of NMS should include: (1) immediate discontinuation of antipsychotic drugs and other drugs not essential to concurrent therapy; (2) intensive symptomatic treatment and medical monitoring; and (3) treatment of any concomitant serious medical problems for which specific treatments are available. There is no general agreement about specific pharmacological treatment regimens for uncomplicated NMS. If a patient appears to require antipsychotic drug treatment after recovery from NMS, reintroduction of drug therapy should be closely monitored, since recurrences of NMS have been reported. 5.5 Tardive Dyskinesia A syndrome of potentially irreversible, involuntary, dyskinetic movements may develop in patients treated with antipsychotic drugs. Although the prevalence of the syndrome appears to be highest among the elderly, especially elderly women, it is impossible to predict which patients will develop the syndrome. Whether antipsychotic drug products differ in their potential to cause tardive dyskinesia is unknown. The risk of developing tardive dyskinesia and the likelihood that it will become irreversible appear to increase as the duration of treatment and the total cumulative dose of antipsychotic drugs administered to the patient increase, but the syndrome can develop after relatively brief treatment periods at low doses, although this is uncommon. Tardive dyskinesia may remit, partially or completely, if antipsychotic treatment is withdrawn. Antipsychotic treatment itself may suppress (or partially suppress) the signs and symptoms of the syndrome and may thus mask the underlying process. The effect of symptomatic suppression on the long-term course of the syndrome is unknown. Given these considerations, ARISTADA should be prescribed in a manner that is most likely to minimize the occurrence of tardive dyskinesia. Chronic antipsychotic treatment should generally be reserved for patients who suffer from a chronic illness that is known to respond to antipsychotic drugs. In patients who do require chronic treatment, the smallest dose and the shortest duration of treatment producing a satisfactory clinical response should be sought. The need for continued treatment should be reassessed periodically. If signs and symptoms of tardive dyskinesia appear in a patient treated with ARISTADA drug discontinuation should be considered. However, some patients may require treatment with ARISTADA despite the presence of the syndrome. 5.6 Metabolic Changes Atypical antipsychotic drugs have been associated with metabolic changes that include hyperglycemia/diabetes mellitus, dyslipidemia, and weight gain. While all drugs in the class have been shown to produce some metabolic changes, each drug has its own specific risk profile. Hyperglycemia/ Diabetes Mellitus Hyperglycemia, in some cases extreme and associated with ketoacidosis or hyperosmolar coma or death, has been reported in patients treated with atypical antipsychotics. There have been reports of hyperglycemia in patients treated with oral aripiprazole. Assessment of the relationship between atypical antipsychotic use and glucose abnormalities is complicated by the possibility of an increased background risk of diabetes mellitus in patien

CONTRAINDICATIONS ARISTADA INITIO is contraindicated in patients with a known hypersensitivity reaction to aripiprazole. Hypersensitivity reactions have ranged from pruritus/urticaria to anaphylaxis [see Adverse Reactions ( 6 )]. Known hypersensitivity to aripiprazole ( 4 ).

Mechanism of Action Aripiprazole lauroxil is a prodrug of aripiprazole. Following intramuscular injection, aripiprazole lauroxil is likely converted by enzyme-mediated hydrolysis to N -hydroxymethyl aripiprazole, which is then hydrolyzed to aripiprazole. The mechanism of action of aripiprazole in schizophrenia is unclear. However, efficacy could be mediated through a combination of partial agonist activity at dopamine D 2 and serotonin 5-HT 1A receptors and antagonist activity at 5-HT 2A receptors.