Dosificación y Administración
2 DOSAGE AND ADMINISTRATION For intramuscular injection only. ( 2.1 ) Each injection must be administered only by a healthcare professional. ( 2.1 ) For deltoid injection, use 1-inch 23G needle for patients weighing less than 90 kg or 1½-inch 22G needle for patients weighing 90 kg or more. For gluteal injection, use 1½-inch 22G needle regardless of patient weight. ( 2.1 ) Indication Initiation Dosing (deltoid) Monthly Maintenance Dose Administered 5 weeks after the first injection. (deltoid or gluteal) Maximum Monthly Dose Day 1 Day 8 Schizophrenia ( 2.2 ) 234 mg 156 mg 39–234 mg The recommended maintenance dose for treatment of schizophrenia is 117 mg. Some patients may benefit from lower or higher maintenance doses within the additional available strengths (39 mg, 78 mg, 156 mg, and 234 mg). 234 mg Schizoaffective disorder ( 2.2 ) 234 mg 156 mg 78–234 mg Adjust dose based on tolerability and/or efficacy using available strengths. The 39 mg strength was not studied in the long-term schizoaffective disorder study. 234 mg For patients naïve to oral paliperidone or oral or injectable risperidone, establish tolerability with oral paliperidone or oral risperidone prior to initiating treatment with INVEGA SUSTENNA. ( 2.2 ) Missed Doses: To manage either a missed second initiation dose or a missed monthly maintenance dose, refer to the Full Prescribing Information. ( 2.3 ) Moderate to severe renal impairment (creatinine clearance < 50 mL/min): INVEGA SUSTENNA is not recommended. ( 2.5 ) Mild renal impairment (creatinine clearance ≥ 50 mL/min to < 80 mL/min): Administer 156 mg on treatment Day 1 and 117 mg on Day 8, both in the deltoid muscle. Follow with the recommended monthly maintenance dose of 78 mg, administered in the deltoid or gluteal muscle. Adjust monthly maintenance dose based on tolerability and/or efficacy within the strengths of 39 mg, 78 mg, 117 mg, or 156 mg. The maximum monthly dose is 156 mg for patients with mild renal impairment. ( 2.5 ) 2.1 Administration Instructions Each injection must be administered only by a healthcare professional. Parenteral drug products should be inspected visually for foreign matter and discoloration prior to administration, whenever product and container permit. INVEGA SUSTENNA is intended for intramuscular use only. Do not administer by any other route. Avoid inadvertent injection into a blood vessel. Administer the dose in a single injection; do not administer the dose in divided injections. Inject slowly, deep into the deltoid or gluteal muscle. INVEGA SUSTENNA must be administered using only the needles that are provided in the INVEGA SUSTENNA kit. The recommended needle size for administration of INVEGA SUSTENNA into the deltoid muscle is determined by the patient's weight: For patients weighing less than 90 kg, the 1-inch, 23 gauge needle is recommended. For patients weighing 90 kg or more, the 1½-inch, 22 gauge needle is recommended. Deltoid injections should be alternated between the two deltoid muscles. The recommended needle size for administration of INVEGA SUSTENNA into the gluteal muscle is the 1½-inch, 22 gauge needle regardless of patient weight. Administer into the upper-outer quadrant of the gluteal muscle. Gluteal injections should be alternated between the two gluteal muscles. 2.2 Schizophrenia and Schizoaffective Disorder For patients who have never taken oral paliperidone or oral or injectable risperidone, it is recommended to establish tolerability with oral paliperidone or oral risperidone prior to initiating treatment with INVEGA SUSTENNA. The recommended dosing of INVEGA SUSTENNA for each approved indication is displayed in Table 1. The recommended initiation of INVEGA SUSTENNA is with a dose of 234 mg on treatment day 1 and 156 mg one week later, both administered in the deltoid muscle. Following the second initiation dose, monthly maintenance doses can be administered in either the deltoid or gluteal muscle. Table 1: Recommended Dosing of INVEGA SUSTENNA for Adults with Schizophrenia or Schizoaffective Disorder Indication Initiation Dosing (deltoid) Monthly Maintenance Dose Administered 5 weeks after the first injection. (deltoid or gluteal) Maximum Monthly Dose Day 1 Day 8 Schizophrenia 234 mg 156 mg 39–234 mg The recommended maintenance dose for treatment of schizophrenia is 117 mg. Some patients may benefit from lower or higher maintenance doses within the additional available strengths (39 mg, 78 mg, 156 mg, and 234 mg). 234 mg Schizoaffective disorder 234 mg 156 mg 78–234 mg Adjust dose based on tolerability and/or efficacy using available strengths. The 39 mg strength was not studied in the long-term schizoaffective disorder study. 234 mg Adjustment of the maintenance dose may be made monthly. When making dose adjustments, the prolonged-release characteristics of INVEGA SUSTENNA should be considered [see Clinical Pharmacology (12.3) ] , as the full effect of the dose adjustment may not be evident for several months. 2.3 Missed Doses Avoiding Missed Doses It is recommended that the second initiation dose of INVEGA SUSTENNA be given one week after the first dose. To avoid a missed dose, patients may be given the second dose 4 days before or after the one-week time point. Similarly, the third and subsequent injections after the initiation regimen are recommended to be given monthly. To avoid a missed monthly dose, patients may be given the injection up to 7 days before or after the monthly time point. Management of a Missed Second Initiation Dose If the target date for the second INVEGA SUSTENNA injection (one week ± 4 days) is missed, the recommended reinitiation depends on the length of time which has elapsed since the patient's first injection. In case of a missed second initiation dose follow the dosing instructions provided in Table 2. Table 2: Management of a Missed Second Initiation Dose TIMING OF MISSED SECOND INITIATION DOSE DOSING Less than 4 weeks since first injection Administer the second initiation dose of 156 mg in the deltoid muscle as soon as possible. It is recommended to administer a third injection of 117 mg in either the deltoid or gluteal muscle 5 weeks after the first injection (regardless of the timing of the second injection). Thereafter, resume regular monthly dosing in either the deltoid or gluteal muscle. 4 to 7 weeks since first injection Resume dosing with two injections of 156 mg in the following manner: Administer a deltoid injection as soon as possible. Administer a second deltoid injection 1 week later. Thereafter, resume regular monthly dosing in either the deltoid or gluteal muscle. More than 7 weeks since first injection Restart dosing with recommended initiation (see Section 2.2, Table 1 ) : Administer a 234 mg deltoid injection on Day 1. Administer a 156 mg deltoid injection 1 week later. Thereafter, resume regular monthly dosing in either the deltoid or gluteal muscle. Management of a Missed Maintenance Dose In case of a missed maintenance dose follow the dosing instructions provided in Table 3. Table 3: Management of a Missed Maintenance Dose TIMING OF MISSED MAINTENANCE DOSE DOSING 4 to 6 weeks since last injection Resume regular monthly dosing as soon as possible at the patient's previously stabilized dose, followed by injections at monthly intervals. More than 6 weeks to 6 months since last injection Resume the same dose the patient was previously stabilized on (unless the patient was stabilized on a dose of 234 mg, then the first 2 injections should each be 156 mg) in the following manner: Administer a deltoid injection as soon as possible. Administer a second deltoid injection 1 week later at the same dose. Thereafter, resume administering the previously stabilized dose in the deltoid or gluteal muscle 1 month after the second injection. More than 6 months since last injection Restart dosing with recommended initiation ( see Section 2.2, Table 1 ) : Administer a 234 mg deltoid injection on Day 1. Administer a 156 mg deltoid injection 1 week later. Thereafter, resume administering the previously stabilized dose in the deltoid or gluteal muscle 1 month after the second injection. 2.4 Use with Risperidone or with Oral Paliperidone Since paliperidone is the major active metabolite of risperidone, caution should be exercised when INVEGA SUSTENNA is coadministered with risperidone or with oral paliperidone for extended periods of time. Safety data involving concomitant use of INVEGA SUSTENNA with other antipsychotics is limited. 2.5 Dosage Adjustments Patients with Renal Impairment INVEGA SUSTENNA has not been systematically studied in patients with renal impairment [see Clinical Pharmacology (12.3) ] . For patients with mild renal impairment (creatinine clearance ≥ 50 mL/min to < 80 mL/min [Cockcroft-Gault Formula]), initiate INVEGA SUSTENNA with a dose of 156 mg on treatment Day 1 and 117 mg on Day 8, both in the deltoid muscle. Follow with the recommended monthly maintenance dose of 78 mg, administered in either the deltoid or gluteal muscle. Adjust monthly maintenance dose based on tolerability and/or efficacy within the strengths of 39 mg, 78 mg, 117 mg, or 156 mg. The maximum monthly dose is 156 mg for patients with mild renal impairment [see Use in Specific Populations (8.6) and Clinical Pharmacology (12.3) ] . INVEGA SUSTENNA is not recommended in patients with moderate or severe renal impairment (creatinine clearance < 50 mL/min) [see Use in Specific Populations (8.6) and Clinical Pharmacology (12.3) ] . Coadministration with Strong CYP3A4/P-glycoprotein (P-gp) Inducers Avoid using a strong inducer of CYP3A4 and/or P-gp (e.g., carbamazepine, rifampin, St John's Wort) during the 1-month dosing interval for INVEGA SUSTENNA, if possible. If administering a strong inducer is necessary, consider managing the patient using paliperidone extended release tablets [see Drug Interactions (7.1) and Clinical Pharmacology (12.3) ] . 2.6 Switching from Other Antipsychotics There are no systematically collected data to specifically address switching patients with schizophrenia or schizoaffective disorder from other antipsychotics to INVEGA SUSTENNA, or concerning concomitant administration with other antipsychotics. Switching from Oral Antipsychotics For patients who have never taken oral paliperidone or oral or injectable risperidone, tolerability should be established with oral paliperidone or oral risperidone prior to initiating treatment with INVEGA SUSTENNA. Previous oral antipsychotics can be gradually discontinued at the time of initiation of treatment with INVEGA SUSTENNA. Recommended initiation of INVEGA SUSTENNA is with a dose of 234 mg on treatment day 1 and 156 mg one week later, both administered in the deltoid muscle [see Dosage and Administration (2.2) ] . Patients previously stabilized on different doses of INVEGA Extended-Release tablets can attain similar paliperidone steady-state exposure during maintenance treatment with INVEGA SUSTENNA monthly doses as depicted in Table 4. Table 4: Doses of INVEGA and INVEGA SUSTENNA Needed to Attain Similar Steady-State Paliperidone Exposure During Maintenance Treatment Formulation INVEGA Extended-Release Tablet INVEGA SUSTENNA Injection Dosing Frequency Once Daily Once every 4 weeks Dose (mg) 12 234 9 156 6 117 3 39–78 Switching from Long-Acting Injectable Antipsychotics For patients who have never taken oral paliperidone or oral or injectable risperidone, tolerability should be established with oral paliperidone or oral risperidone prior to initiating treatment with INVEGA SUSTENNA. When switching patients currently at steady-state on a long-acting injectable antipsychotic, initiate INVEGA SUSTENNA therapy in place of the next scheduled injection. INVEGA SUSTENNA should then be continued at monthly intervals. The one-week initiation dosing regimen as described in Section 2.2 is not required. See Table 1 above for recommended monthly maintenance dosing. Based on previous clinical history of tolerability and/or efficacy, some patients may benefit from lower or higher maintenance doses within the available strengths (39 mg, 78 mg, 117 mg, 156 mg, and 234 mg). The 39 mg strength was not studied in the long-term schizoaffective disorder study. Monthly maintenance doses can be administered in either the deltoid or gluteal muscle [see Dosage and Administration (2.2) ] . If INVEGA SUSTENNA is discontinued, its prolonged-release characteristics must be considered. As recommended with other antipsychotic medications, the need for continuing existing extrapyramidal symptoms (EPS) medication should be re-evaluated periodically. 2.7 Instructions for Preparation and Administration Each injection must be administered only by a healthcare professional. The kit contains a prefilled syringe and 2 safety needles (a 1 ½-inch 22 gauge needle and a 1-inch 23 gauge needle) for intramuscular injection. INVEGA SUSTENNA is for single use only. Shake the syringe vigorously for a minimum of 10 seconds to ensure a homogeneous suspension. Select the appropriate needle. For DELTOID injection: If the patient weighs less than 90 kg, use the 1-inch 23 gauge needle (needle with blue colored hub). If the patient weighs 90 kg or more, use the 1 ½-inch 22 gauge needle (needle with gray colored hub). For GLUTEAL injection: Use the 1 ½-inch 22 gauge needle (needle with gray colored hub) regardless of patient's weight. Hold the syringe with the tip cap pointing up. Remove the rubber tip cap with a gentle twisting motion. Peel the safety needle pouch half way open. Grasp the needle sheath using the plastic peel pouch. Hold the syringe pointing up. Attach the safety needle to the syringe using a gentle twisting motion to avoid needle hub cracks or damage. Always check for signs of damage or leaking prior to administration. Pull the needle sheath away from the needle with a straight pull. Do not twist the sheath as the needle may be loosened from the syringe. Bring the syringe with the attached needle in upright position to de-aerate. De-aerate the syringe by moving the plunger rod carefully forward. Inject the entire contents intramuscularly slowly, deep into the selected deltoid or gluteal muscle of the patient. Do not administer by any other route. After the injection is complete, use either thumb or finger of one hand (h1, h2) or a flat surface (h3) to activate the needle protection system. The needle protection system is fully activated when a 'click' is heard. Discard the syringe with needle appropriately. h1 h2 h3 Figure Figure Figure Figure Figure Figure h1 h2 h3
Side Effects Overview
6 ADVERSE REACTIONS The following are discussed in more detail in other sections of the labeling: Increased mortality in elderly patients with dementia-related psychosis [see Boxed Warning and Warnings and Precautions (5.1) ] Cerebrovascular adverse reactions, including stroke, in elderly patients with dementia-related psychosis [see Warnings and Precautions (5.2) ] Neuroleptic malignant syndrome [see Warnings and Precautions (5.3) ] QT prolongation [see Warnings and Precautions (5.4) ] Tardive dyskinesia [see Warnings and Precautions (5.5) ] Metabolic changes [see Warnings and Precautions (5.6) ] Orthostatic hypotension and syncope [see Warnings and Precautions (5.7) ] Falls [see Warnings and Precautions (5.8) ] Leukopenia, neutropenia, and agranulocytosis [see Warnings and Precautions (5.9) ] Hyperprolactinemia [see Warnings and Precautions (5.10) ] Potential for cognitive and motor impairment [see Warnings and Precautions (5.11) ] Seizures [see Warnings and Precautions (5.12) ] Dysphagia [see Warnings and Precautions (5.13) ] Priapism [see Warnings and Precautions (5.14) ] Disruption of body temperature regulation [see Warnings and Precautions (5.15) ] The most common adverse reactions (incidence ≥ 5% and occurring at least twice as often as placebo) were injection site reactions, somnolence/sedation, dizziness, akathisia, and extrapyramidal disorder. ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Janssen Pharmaceuticals, Inc. at 1-800-526-7736 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 clinical practice. Patient Exposure The data described in this section are derived from a clinical trial database consisting of a total of 3817 subjects (approximately 1705 patient-years exposure) with schizophrenia who received at least one dose of INVEGA SUSTENNA in the recommended dose range of 39 mg to 234 mg and a total of 510 subjects with schizophrenia who received placebo. Among the 3817 INVEGA SUSTENNA-treated subjects, 1293 received INVEGA SUSTENNA in four fixed-dose, double-blind, placebo-controlled trials (one 9-week and three 13-week studies), 849 received INVEGA SUSTENNA in the maintenance trial (median exposure 229 days during the initial 33-week open-label phase of this study, of whom 205 continued to receive INVEGA SUSTENNA during the double-blind placebo-controlled phase of this study [median exposure 171 days]), and 1675 received INVEGA SUSTENNA in five non-placebo controlled trials (three noninferiority active-comparator trials, one long-term open-label pharmacokinetic and safety study, and an injection site [deltoid-gluteal] cross-over trial). One of the 13-week studies included a 234 mg INVEGA SUSTENNA initiation dose followed by treatment with either 39 mg, 156 mg, or 234 mg every 4 weeks. The safety of INVEGA SUSTENNA was also evaluated in a 15-month, long-term study comparing INVEGA SUSTENNA to selected oral antipsychotic therapies in adult subjects with schizophrenia. A total of 226 subjects received INVEGA SUSTENNA during the 15-month, open-label period of this study; 218 subjects received selected oral antipsychotic therapies. The safety of INVEGA SUSTENNA was similar to that seen in previous double-blind, placebo-controlled clinical trials in adult subjects with schizophrenia. The safety of INVEGA SUSTENNA was also evaluated in a long-term study in adult subjects with schizoaffective disorder. A total of 667 subjects received INVEGA SUSTENNA during the initial 25-week open-label period of this study (median exposure 147 days); 164 subjects continued to receive INVEGA SUSTENNA during the 15-month double-blind placebo-controlled period of this study (median exposure 446 days). Adverse reactions that occurred more frequently in the INVEGA SUSTENNA than the placebo group (a 2% difference or more between groups) were weight increased, nasopharyngitis, headache, hyperprolactinemia, and pyrexia. Adverse Reactions in Double-Blind, Placebo-Controlled Clinical Trials Commonly Observed Adverse Reactions: The most common (at least 5% in any INVEGA SUSTENNA group) and likely drug-related (adverse events for which the drug rate is at least twice the placebo rate) adverse reactions from the double-blind, placebo-controlled trials in subjects with schizophrenia were injection site reactions, somnolence/sedation, dizziness, akathisia, and extrapyramidal disorder . No occurrences of adverse events reached this threshold in the long-term double-blind, placebo-controlled study in subjects with schizoaffective disorder. Discontinuation of Treatment Due to Adverse Events: The percentage of subjects who discontinued due to adverse events in the four fixed-dose, double-blind, placebo-controlled schizophrenia trials were similar for INVEGA SUSTENNA- and placebo-treated subjects. The percentage of subjects who discontinued due to adverse events in the open-label period of the long-term study in subjects with schizoaffective disorder was 7.5%. During the double-blind, placebo-controlled period of that study, the percentages of subjects who discontinued due to adverse events were 5.5% and 1.8% in INVEGA SUSTENNA- and placebo-treated subjects, respectively. Dose-Related Adverse Reactions: Based on the pooled data from the four fixed-dose, double-blind, placebo-controlled trials in subjects with schizophrenia, among the adverse reactions that occurred with ≥ 2% incidence in the subjects treated with INVEGA SUSTENNA, only akathisia increased with dose. Hyperprolactinemia also exhibited a dose relationship, but did not occur at ≥ 2% incidence in INVEGA SUSTENNA-treated subjects from the four fixed-dose studies. Adverse Reactions Occurring at an Incidence of 2% or More in INVEGA SUSTENNA-Treated Patients: Table 10 lists the adverse reactions reported in 2% or more of INVEGA SUSTENNA-treated subjects and at a greater proportion than in the placebo group with schizophrenia in the four fixed-dose, double-blind, placebo-controlled trials. Table 10: Incidences of Adverse Reactions 2% or More of INVEGA SUSTENNA-Treated Patients (and Greater than Placebo) with Schizophrenia in Four Fixed-Dose, Double-Blind, Placebo-Controlled Trials INVEGA SUSTENNA System Organ Class Placebo Placebo group is pooled from all studies and included either deltoid or gluteal injection depending on study design. 39 mg 78 mg 156 mg 234/39 mg Initial deltoid injection of 234 mg followed by either 39 mg, 156 mg, or 234 mg every 4 weeks by deltoid or gluteal injection. Other dose groups (39 mg, 78 mg, and 156 mg) are from studies involving only gluteal injection. [see Clinical Studies (14.1)] 234/156 mg 234/234 mg Adverse Reactions (N=510) (N=130) (N=302) (N=312) (N=160) (N=165) (N=163) Percentages are rounded to whole numbers. Table includes adverse reactions that were reported in 2% or more of subjects in any of the INVEGA SUSTENNA dose groups and which occurred at greater incidence than in the placebo group. Total percentage of subjects with adverse reactions 70 75 68 69 63 60 63 Gastrointestinal disorders Abdominal discomfort/abdominal pain upper 2 2 4 4 1 2 4 Diarrhea 2 0 3 2 1 2 2 Dry mouth 1 3 1 0 1 1 1 Nausea 3 4 4 3 2 2 2 Toothache 1 1 1 3 1 2 3 Vomiting 4 5 4 2 3 2 2 General disorders and administration site conditions Asthenia 0 2 1 <1 0 1 1 Fatigue 1 1 2 2 1 2 1 Injection site reactions 2 0 4 6 9 7 10 Infections and infestations Nasopharyngitis 2 0 2 2 4 2 2 Upper respiratory tract infection 2 2 2 2 1 2 4 Urinary tract infection 1 0 1 <1 1 1 2 Investigations Weight increased 1 4 4 1 1 1 2 Musculoskeletal and connective tissue disorders Back pain 2 2 1 3 1 1 1 Musculoskeletal stiffness 1 1 <1 <1 1 1 2 Myalgia 1 2 1 <1 1 0 2 Pain in extremity 1 0 2 2 2 3 0 Nervous system disorders Akathisia 3 2 2 3 1 5 6 Dizziness 1 6 2 4 1 4 2 Extrapyramidal disorder 1 5 2 3 1 0 0 Headache 12 11 11 15 11 7 6 Somnolence/sedation 3 5 7 4 1 5 5 Psychiatric disorders Agitation 7 10 5 9 8 5 4 Anxiety 7 8 5 3 5 6 6 Nightmare <1 2 0 0 0 0 0 Respiratory, thoracic and mediastinal disorders Cough 1 2 3 1 0 1 1 Vascular disorders Hypertension 1 2 1 1 1 1 0 Adverse reactions for which the INVEGA SUSTENNA incidence was equal to or less than placebo are not listed in the table, but included the following: dyspepsia, psychotic disorder, schizophrenia, and tremor. The following terms were combined: somnolence/sedation, breast tenderness/breast pain, abdominal discomfort/abdominal pain upper/stomach discomfort, and tachycardia/sinus tachycardia/heart rate increased. All injection site reaction-related adverse reactions were collapsed and are grouped under "Injection site reactions". Other Adverse Reactions Observed During the Clinical Trial Evaluation of INVEGA SUSTENNA The following list does not 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, or 4) which were not considered to have significant clinical implications. Cardiac disorders: atrioventricular block first degree, bradycardia, bundle branch block, palpitations, postural orthostatic tachycardia syndrome, tachycardia Ear and labyrinth disorders: vertigo Eye disorders: eye movement disorder, eye rolling, oculogyric crisis, vision blurred Gastrointestinal disorders: constipation, dyspepsia, flatulence, salivary hypersecretion Immune system disorders: hypersensitivity Investigations: alanine aminotransferase increased, aspartate aminotransferase increased, electrocardiogram abnormal Metabolism and nutrition disorders: decreased appetite, hyperinsulinemia, increased appetite Musculoskeletal and connective tissue disorders: arthralgia, joint stiffness, muscle rigidity, muscle spasms, muscle tightness, muscle twitching, nuchal rigidity Nervous system disorders: bradykinesia, cerebrovascular accident, cogwheel rigidity, convulsion, dizziness postural, drooling, dysarthria, dyskinesia, dystonia, hypertonia, lethargy, oromandibular dystonia, parkinsonism, psychomotor hyperactivity, syncope Psychiatric disorders: insomnia, libido decreased, restlessness Reproductive system and breast disorders: amenorrhea, breast discharge, breast enlargement/breast swelling, breast tenderness/breast pain, ejaculation disorder, erectile dysfunction, galactorrhea, gynecomastia, menstrual disorder, menstruation delayed, menstruation irregular, sexual dysfunction Respiratory, thoracic and mediastinal disorders: nasal congestion Skin and subcutaneous tissue disorders: drug eruption, pruritus, pruritus generalized, rash, urticaria Demographic Differences An examination of population subgroups in the double-blind placebo-controlled trials did not reveal any evidence of differences in safety on the basis of age, gender, or race alone; however, there were few subjects 65 years of age and older. Extrapyramidal Symptoms (EPS) Pooled data from the two double-blind, placebo-controlled, 13-week, fixed-dose trials in adult subjects with schizophrenia provided information regarding EPS. Several methods were used to measure EPS: (1) the Simpson-Angus global score which broadly evaluates parkinsonism, (2) the Barnes Akathisia Rating Scale global clinical rating score which evaluates akathisia, (3) the Abnormal Involuntary Movement Scale scores which evaluates dyskinesia, and (4) use of anticholinergic medications to treat EPS (Table 11), and (5) incidence of spontaneous reports of EPS (Table 12). Table 11: Extrapyramidal Symptoms (EPS) Assessed by Incidence of Rating Scales and Use of Anticholinergic Medication – Schizophrenia Studies in Adults Percentage of Subjects INVEGA SUSTENNA Scale Placebo (N=262) 39 mg (N=130) 78 mg (N=223) 156 mg (N=228) Parkinsonism For parkinsonism, percent of subjects with Simpson-Angus Total score > 0.3 at endpoint (Total score defined as total sum of items score divided by the number of items) 9 12 10 6 Akathisia For Akathisia, percent of subjects with Barnes Akathisia Rating Scale global score ≥ 2 at endpoint 5 5 6 5 Dyskinesia For Dyskinesia, percent of subjects with a score ≥ 3 on any of the first 7 items or a score ≥ 2 on two or more of any of the first 7 items of the Abnormal Involuntary Movement Scale at endpoint 3 4 6 4 Use of Anticholinergic Medications Percent of subjects who received anticholinergic medications to treat EPS 12 10 12 11 Table 12: Extrapyramidal Symptoms (EPS)-Related Events by MedDRA Preferred Term – Schizophrenia Studies in Adults Percentage of Subjects INVEGA SUSTENNA EPS Group Placebo (N=262) 39 mg (N=130) 78 mg (N=223) 156 mg (N=228) Parkinsonism group includes: Extrapyramidal disorder, hypertonia, musculoskeletal stiffness, parkinsonism, drooling, masked facies, muscle tightness, hypokinesia Hyperkinesia group includes: Akathisia, restless legs syndrome, restlessness Dyskinesia group includes: Dyskinesia, choreoathetosis, muscle twitching, myoclonus, tardive dyskinesia Dystonia group includes: Dystonia, muscle spasms Overall percentage of subjects with EPS-related adverse events 10 12 11 11 Parkinsonism 5 6 6 4 Hyperkinesia 2 2 2 4 Tremor 3 2 2 3 Dyskinesia 1 2 3 1 Dystonia 0 1 1 2 The results across all phases of the maintenance trial in subjects with schizophrenia exhibited comparable findings. In the 9-week, fixed-dose, double-blind, placebo-controlled trial, the proportions of parkinsonism and akathisia assessed by incidence of rating scales were higher in the INVEGA SUSTENNA 156 mg group (18% and 11%, respectively) than in the INVEGA SUSTENNA 78 mg group (9% and 5%, respectively) and placebo group (7% and 4%, respectively). In the 13-week study in subjects with schizophrenia involving 234 mg initiation dosing, the incidence of any EPS was similar to that of the placebo group (8%), but exhibited a dose-related pattern with 6%, 10%, and 11% in the INVEGA SUSTENNA 234/39 mg, 234/156 mg, and 234/234 mg groups, respectively. Hyperkinesia was the most frequent category of EPS-related adverse events in this study, and was reported at a similar rate between the placebo (4.9%) and INVEGA SUSTENNA 234/156 mg (4.8%) and 234/234 mg (5.5%) groups, but at a lower rate in the 234/39 mg group (1.3%). In the long-term study in subjects with schizoaffective disorder, EPS reported during the 25-week open-label INVEGA SUSTENNA treatment included hyperkinesia (12.3%), parkinsonism (8.7%), tremor (3.4%), dyskinesia (2.5%), and dystonia (2.1%). During the 15-month double-blind treatment, the incidence of any EPS was similar to that of the placebo group (8.5% and 7.1% respectively). The most commonly reported treatment-emergent EPS-related adverse events (> 2%) in any treatment group in the double-blind phase of the study (INVEGA SUSTENNA versus placebo) were hyperkinesia (3.7% vs. 2.9%), parkinsonism (3.0% vs. 1.8%), and tremor (1.2% vs. 2.4%). Dystonia 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. Pain Assessment and Local Injection Site Reactions In the pooled data from the two 13-week, fixed-dose, double-blind, placebo-controlled trials in subjects with schizophrenia, the mean intensity of injection pain reported by subjects using a visual analog scale (0 = no pain to 100 = unbearably painful) decreased in all treatment groups from the first to the last injection (placebo: 10.9 to 9.8; 39 mg: 10.3 to 7.7; 78 mg: 10.0 to 9.2; 156 mg: 11.1 to 8.8). The results from both the 9-week, fixed-dose, double-blind, placebo-controlled trial and the double-blind phase of the maintenance trial exhibited comparable findings. In the 13-week study involving 234 mg initiation dosing in subjects with schizophrenia, occurrences of induration, redness, or swelling, as assessed by blinded study personnel, were infrequent, generally mild, decreased over time, and similar in incidence between the INVEGA SUSTENNA and placebo groups. Investigator ratings of injection pain were similar for the placebo and INVEGA SUSTENNA groups. Investigator evaluations of the injection site after the first injection for redness, swelling, induration, and pain were rated as absent for 69–100% of subjects in both the INVEGA SUSTENNA and placebo groups. At Day 92, investigators rated absence of redness, swelling, induration, and pain in 95–100% of subjects in both the INVEGA SUSTENNA and placebo groups. Additional Adverse Reactions Reported in Clinical Trials with Oral Paliperidone The following is a list of additional adverse reactions that have been reported in clinical trials with oral paliperidone: Cardiac disorders : bundle branch block left, sinus arrhythmia Gastrointestinal disorders : abdominal pain, small intestinal obstruction General disorders and administration site conditions : edema, edema peripheral Immune system disorders : anaphylactic reaction Infections and infestations: rhinitis Musculoskeletal and connective tissue disorders : musculoskeletal pain, torticollis, trismus Nervous system disorders : grand mal convulsion, parkinsonian gait, transient ischemic attack Psychiatric disorders: sleep disorder Reproductive system and breast disorders : breast engorgement Respiratory, thoracic and mediastinal disorders: pharyngolaryngeal pain, pneumonia aspiration Skin and subcutaneous tissue disorders: rash papular Vascular disorders : hypotension, ischemia 6.2 Postmarketing Experience The following adverse reactions have been identified during postapproval use of paliperidone; because these reactions were 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: angioedema, catatonia, ileus, somnambulism, swollen tongue, thrombotic thrombocytopenic purpura, urinary incontinence, and urinary retention. Cases of anaphylactic reaction after injection with INVEGA SUSTENNA have been reported during postmarketing experience in patients who have previously tolerated oral risperidone or oral paliperidone. Paliperidone is the major active metabolite of risperidone. Adverse reactions reported with oral risperidone and risperidone long-acting injection can be found in the Adverse Reactions (6) sections of the package inserts for those products.
Advertencias y Precauciones
5 WARNINGS AND PRECAUTIONS Cerebrovascular Adverse Reactions, Including Stroke, in Elderly Patients with Dementia-Related Psychosis: Increased incidence of cerebrovascular adverse reactions (e.g. stroke, transient ischemic attack). ( 5.2 ) Neuroleptic Malignant Syndrome: Manage with immediate discontinuation of drug and close monitoring. ( 5.3 ) QT Prolongation: Avoid use with drugs that also increase QT interval and in patients with risk factors for prolonged QT interval. ( 5.4 ) Tardive Dyskinesia: Discontinue drug if clinically appropriate. ( 5.5 ) Metabolic Changes: Monitor for hyperglycemia/diabetes mellitus, dyslipidemia and weight gain. ( 5.6 ) Orthostatic Hypotension and Syncope: Monitor heart rate and blood pressure and warn patients with known cardiovascular or cerebrovascular disease, and risk of dehydration or syncope. ( 5.7 ) Leukopenia, Neutropenia, and Agranulocytosis: Perform complete blood counts (CBC) in patients with pre-existing low white blood cell count (WBC) or history of leukopenia or neutropenia. Consider discontinuing INVEGA SUSTENNA if clinically significant decline in WBC in the absence of other causative factors. ( 5.9 ) Hyperprolactinemia: Prolactin elevations occur and persist during chronic administration. ( 5.10 ) Potential for Cognitive and Motor Impairment: Use caution when operating machinery. ( 5.11 ) Seizures: Use cautiously in patients with a history of seizures or with conditions that lower the seizure threshold. ( 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. INVEGA SUSTENNA is not approved for the treatment of patients with dementia-related psychosis [see Boxed Warning and Warnings and Precautions (5.2) ] . 5.2 Cerebrovascular Adverse Reactions, Including Stroke, in Elderly Patients with Dementia-Related Psychosis In placebo-controlled trials with risperidone, aripiprazole, and olanzapine in elderly subjects with dementia, there was a higher incidence of cerebrovascular adverse reactions (cerebrovascular accidents and transient ischemic attacks) including fatalities compared to placebo-treated subjects. No studies have been conducted with oral paliperidone, INVEGA SUSTENNA, or the 3-month paliperidone palmitate extended-release injectable suspension in elderly patients with dementia. These medicines are not approved for the treatment of patients with dementia-related psychosis [see Boxed Warning and Warnings and Precautions (5.1) ] . 5.3 Neuroleptic Malignant Syndrome Neuroleptic Malignant Syndrome (NMS), a potentially fatal symptom complex, has been reported in association with antipsychotic drugs, including paliperidone. Clinical manifestations of NMS are hyperpyrexia, muscle rigidity, altered mental status including delirium, and 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. If NMS is suspected, immediately discontinue INVEGA SUSTENNA and provide symptomatic treatment and monitoring. 5.4 QT Prolongation Paliperidone causes a modest increase in the corrected QT (QTc) interval. The use of paliperidone should be avoided in combination with other drugs that are known to prolong QTc including Class 1A (e.g., quinidine, procainamide) or Class III (e.g., amiodarone, sotalol) antiarrhythmic medications, antipsychotic medications (e.g., chlorpromazine, thioridazine), antibiotics (e.g., gatifloxacin, moxifloxacin), or any other class of medications known to prolong the QTc interval. Paliperidone should also be avoided in patients with congenital long QT syndrome and in patients with a history of cardiac arrhythmias. Certain circumstances may increase the risk of the occurrence of Torsades de pointes and/or sudden death in association with the use of drugs that prolong the QTc interval, including (1) bradycardia; (2) hypokalemia or hypomagnesemia; (3) concomitant use of other drugs that prolong the QTc interval; and (4) presence of congenital prolongation of the QT interval. The effects of oral paliperidone on the QT interval were evaluated in a double-blind, active-controlled (moxifloxacin 400 mg single dose), multicenter QT study in adults with schizophrenia and schizoaffective disorder, and in three placebo- and active-controlled 6-week, fixed-dose efficacy trials in adults with schizophrenia. In the QT study (n=141), the 8 mg dose of immediate-release oral paliperidone (n=50) showed a mean placebo-subtracted increase from baseline in QTcLD of 12.3 msec (90% CI: 8.9; 15.6) on day 8 at 1.5 hours post-dose. The mean steady-state peak plasma concentration for this 8 mg dose of paliperidone immediate release (C max ss = 113 ng/mL) was more than 2-fold the exposure observed with the maximum recommended 234 mg dose of INVEGA SUSTENNA administered in the deltoid muscle (predicted median C max ss = 50 ng/mL). In this same study, a 4 mg dose of the immediate-release oral formulation of paliperidone, for which C max ss = 35 ng/mL, showed an increased placebo-subtracted QTcLD of 6.8 msec (90% CI: 3.6; 10.1) on day 2 at 1.5 hours post-dose. In the three fixed-dose efficacy studies of oral paliperidone extended release in subjects with schizophrenia, electrocardiogram (ECG) measurements taken at various time points showed only one subject in the oral paliperidone 12 mg group had a change exceeding 60 msec at one time-point on Day 6 (increase of 62 msec). In the four fixed-dose efficacy studies of INVEGA SUSTENNA in subjects with schizophrenia and in the long-term study in subjects with schizoaffective disorder, no subject experienced a change in QTcLD exceeding 60 msec and no subject had a QTcLD value of > 500 msec at any time point. In the maintenance study in subjects with schizophrenia, no subject had a QTcLD change > 60 msec, and one subject had a QTcLD value of 507 msec (Bazett's QT corrected interval [QTcB] value of 483 msec); this latter subject also had a heart rate of 45 beats per minute. 5.5 Tardive Dyskinesia Tardive dyskinesia, a syndrome consisting 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 with the duration of treatment and the cumulative dose. The syndrome can develop after relatively brief treatment periods, even at low doses. It may also occur after discontinuation of treatment. Tardive dyskinesia may remit, partially or completely, if antipsychotic treatment is discontinued. Antipsychotic treatment, itself, however, may suppress (or partially suppress) the signs and symptoms of the syndrome, possibly masking the underlying process. The effect that symptomatic suppression has upon the long-term course of the syndrome is unknown. Given these considerations, INVEGA SUSTENNA 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: (1) who suffer from a chronic illness that is known to respond to antipsychotic drugs, and (2) for whom alternative, equally effective, but potentially less harmful treatments are not available or appropriate. In patients who do require chronic treatment, use the lowest dose and the shortest duration of treatment producing a satisfactory clinical response. Periodically reassess the need for continued treatment. If signs and symptoms of tardive dyskinesia appear in a patient on INVEGA SUSTENNA, drug discontinuation should be considered. However, some patients may require treatment with INVEGA SUSTENNA despite the presence of the syndrome. 5.6 Metabolic Changes Atypical antipsychotic drugs have been associated with metabolic changes that may increase cardiovascular/cerebrovascular risk. These metabolic changes include hyperglycemia, dyslipidemia, and body weight gain. While all of the drugs in the class have been shown to produce some metabolic changes, each drug has its own specific risk profile. Hyperglycemia and Diabetes Mellitus Hyperglycemia and diabetes mellitus, in some cases extreme and associated with ketoacidosis or hyperosmolar coma or death, have been reported in patients treated with all atypical antipsychotics. These cases were, for the most part, seen in post-marketing clinical use and epidemiologic studies, not in clinical trials. Hyperglycemia and diabetes have been reported in trial subjects treated with INVEGA SUSTENNA. 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 patients with schizophrenia and the increasing incidence of diabetes mellitus in the general population. Given these confounders, the relationship between atypical antipsychotic use and hyperglycemia-related adverse events is not completely understood. However, epidemiological studies suggest an increased risk of hyperglycemia-related adverse reactions in patients treated with the atypical antipsychotics. Patients with an established diagnosis of diabetes mellitus who are started on atypical antipsychotics should be monitored regularly for worsening of glucose control. Patients with risk factors for diabetes mellitus (e.g., obesity, family history of diabetes) who are starting treatment with atypical antipsychotics should undergo fasting blood glucose testing at the beginning of treatment and periodically during treatment. Any patient treated with atypical antipsychotics should be monitored for symptoms of hyperglycemia including polydipsia, polyuria, polyphagia, and weakness. Patients who develop symptoms of hyperglycemia during treatment with atypical antipsychotics should undergo fasting blood glucose testing. In some cases, hyperglycemia has resolved when the atypical antipsychotic was discontinued; however, some patients required continuation of anti-diabetic treatment despite discontinuation of the suspect drug. Pooled data from the four placebo-controlled (one 9-week and three 13-week), fixed-dose studies in subjects with schizophrenia are presented in Table 5. Table 5: Change in Fasting Glucose from Four Placebo-Controlled, 9- to 13-Week, Fixed-Dose Studies in Subjects with Schizophrenia INVEGA SUSTENNA Placebo 39 mg 78 mg 156 mg 234/39 mg Initial deltoid injection of 234 mg followed by either 39 mg, 156 mg, or 234 mg every 4 weeks by deltoid or gluteal injection. Other dose groups (39 mg, 78 mg, and 156 mg) are from studies involving only gluteal injection. [see Clinical Studies (14.1)] . 234/156 mg 234/234 mg Mean change from baseline (mg/dL) n=367 n=86 n=244 n=238 n=110 n=126 n=115 Serum Glucose Change from baseline -1.3 1.3 3.5 0.1 3.4 1.8 -0.2 Proportion of Patients with Shifts Serum Glucose Normal to High 4.6% 6.3% 6.4% 3.9% 2.5% 7.0% 6.6% (<100 mg/dL to ≥126 mg/dL) (11/241) (4/64) (11/173) (6/154) (2/79) (6/86) (5/76) In a long-term open-label pharmacokinetic and safety study in subjects with schizophrenia in which the highest dose available (234 mg) was evaluated, INVEGA SUSTENNA was associated with a mean change in glucose of -0.4 mg/dL at Week 29 (n=109) and +6.8 mg/dL at Week 53 (n=100). During the initial 25-week open-label period of a long-term study in subjects with schizoaffective disorder, INVEGA SUSTENNA was associated with mean change in glucose of +5.3 mg/dL (n=518). At the endpoint of the subsequent 15-month double-blind period of the study, INVEGA SUSTENNA was associated with a mean change in glucose of +0.3 mg/dL (n=131) compared with a mean change of +4.0 mg/dL in the placebo group (n=120). Dyslipidemia Undesirable alterations in lipids have been observed in patients treated with atypical antipsychotics. Pooled data from the four placebo-controlled (one 9-week and three 13-week), fixed-dose studies in subjects with schizophrenia are presented in Table 6. Table 6: Change in Fasting Lipids from Four Placebo-Controlled, 9- to 13-Week, Fixed-Dose Studies in Subjects with Schizophrenia INVEGA SUSTENNA Placebo 39 mg 78 mg 156 mg 234/39 mg Initial deltoid injection of 234 mg followed by either 39 mg, 156 mg, or 234 mg every 4 weeks by deltoid or gluteal injection. Other dose groups (39 mg, 78 mg, and 156 mg) are from studies involving only gluteal injection. [see Clinical Studies (14.1)] . 234/156 mg 234/234 mg Mean change from baseline (mg/dL) Cholesterol n=366 n=89 n=244 n=232 n=105 n=119 n=120 Change from baseline -6.6 -6.4 -5.8 -7.1 -0.9 -4.2 9.4 LDL n=275 n=80 n=164 n=141 n=104 n=117 n=108 Change from baseline -6.0 -4.8 -5.6 -4.8 0.9 -2.4 5.2 HDL n=286 n=89 n=165 n=150 n=105 n=118 n=115 Change from baseline 0.7 2.1 0.6 0.3 1.5 1.1 0.0 Triglycerides n=366 n=89 n=244 n=232 n=105 n=119 n=120 Change from baseline -16.7 7.6 -9.0 -11.5 -14.1 -20.0 11.9 Proportion of Patients with Shifts Cholesterol Normal to High 3.2% 2.0% 2.0% 2.1% 0% 3.1% 7.1% (<200 mg/dL to ≥240 mg/dL) (7/222) (1/51) (3/147) (3/141) (0/69) (2/65) (6/84) LDL Normal to High 1.1% 0% 0% 0% 0% 0% 0% (<100 mg/dL to ≥160 mg/dL) (1/95) (0/29) (0/67) (0/46) (0/41) (0/37) (0/44) HDL Normal to Low 13.8% 14.8% 9.6% 14.2% 12.7% 10.5% 16.0% (≥40 mg/dL to <40 mg/dL) (28/203) (9/61) (11/115) (15/106) (9/71) (8/76) (13/81) Triglycerides Normal to High 3.6% 6.1% 9.2% 7.2% 1.3% 3.7% 10.7% (<150 mg/dL to ≥200 mg/dL) (8/221) (3/49) (14/153) (10/139) (1/79) (3/82) (9/84) In a long-term open-label pharmacokinetic and safety study in subjects with schizophrenia in which the highest dose available (234 mg) was evaluated, the mean changes from baseline in lipid values are presented in Table 7. Table 7: Change in Fasting Lipids from Long-term Open-label Pharmacokinetic and Safety Study in Subjects with Schizophrenia INVEGA SUSTENNA 234 mg Week 29 Week 53 Mean change from baseline (mg/dL) Cholesterol n=112 n=100 Change from baseline -1.2 0.1 LDL n=107 n=89 Change from baseline -2.7 -2.3 HDL n=112 n=98 Change from baseline -0.8 -2.6 Triglycerides n=112 n=100 Change from baseline 16.2 37.4 The mean changes from baseline in lipid values during the initial 25-week open-label period and at the endpoint of the subsequent 15-month double-blind period in a long-term study in subjects with schizoaffective disorder are presented in Table 8. Table 8: Change in Fasting Lipids from an Open-Label and Double-Blind Periods of a Long-Term Study in Subjects with Schizoaffective Disorder Open-Label Period Double-Blind Period INVEGA SUSTENNA Placebo INVEGA SUSTENNA Mean change from baseline (mg/dL) Cholesterol n=198 n=119 n=132 Change from baseline -3.9 -4.2 2.3 LDL n=198 n=117 n=130 Change from baseline -2.7 -2.8 5.9 HDL n=198 n=119 n=131 Change from baseline -2.7 -0.9 -0.7 Triglycerides n=198 n=119 n=132 Change from baseline 7.0 2.5 -12.3 Weight Gain Weight gain has been observed with atypical antipsychotic use. Clinical monitoring of weight is recommended. Data on mean changes in body weight and the proportion of subjects meeting a weight gain criterion of ≥ 7% of body weight from the four placebo-controlled (one 9-week and three 13-week), fixed-dose studies in subjects with schizophrenia are presented in Table 9. Table 9: Mean Change in Body Weight (kg) and the Proportion of Subjects with ≥ 7% Gain in Body Weight from Four Placebo-Controlled, 9- to 13-Week, Fixed-Dose Studies in Subjects with Schizophrenia INVEGA SUSTENNA Placebo 39 mg 78 mg 156 mg 234/39 mg Initial deltoid injection of 234 mg followed by either 39 mg, 156 mg, or 234 mg every 4 weeks by deltoid or gluteal injection. Other dose groups (39 mg, 78 mg, and 156 mg) are from studies involving only gluteal injection. [see Clinical Studies (14.1)] . 234/156 mg 234/234 mg n=451 n=116 n=280 n=267 n=137 n=144 n=145 Weight (kg) Change from baseline -0.4 0.4 0.8 1.4 0.4 0.7 1.4 Weight Gain ≥ 7% increase from baseline 3.3% 6.0% 8.9% 9.0% 5.8% 8.3% 13.1% In a long-term open-label pharmacokinetic and safety study in which the highest dose available (234 mg) was evaluated, INVEGA SUSTENNA was associated with a mean change in weight of +2.4 kg at Week 29 (n=134) and +4.3 kg at Week 53 (n=113). During the initial 25-week open-label period of a long-term study in subjects with schizoaffective disorder, INVEGA SUSTENNA was associated with a mean change in weight of +2.2 kg and 18.4% of subjects had an increase in body weight of ≥ 7% (n=653). At the endpoint of the subsequent 15-month double-blind period of the study, INVEGA SUSTENNA was associated with a mean change in weight of -0.2 kg and 13.0% of subjects had an increase in body weight of ≥ 7% (n=161); the placebo group had a mean change in weight of -0.8 kg and 6.0% of subjects had an increase in body weight of ≥ 7% (n=168). 5.7 Orthostatic Hypotension and Syncope Paliperidone can induce orthostatic hypotension and syncope in some patients because of its alpha-adrenergic blocking activity. Syncope was reported in < 1% (4/1293) of subjects treated with INVEGA SUSTENNA in the recommended dose range of 39 mg to 234 mg in the four fixed-dose, double-blind, placebo-controlled trials compared with 0% (0/510) of subjects treated with placebo. In the four fixed-dose efficacy studies in subjects with schizophrenia, orthostatic hypotension was reported as an adverse event by < 1% (2/1293) of INVEGA SUSTENNA-treated subjects compared to 0% (0/510) with placebo. Incidences of orthostatic hypotension and syncope in the long-term studies in subjects with schizophrenia and schizoaffective disorder were similar to those observed in the short-term studies. INVEGA SUSTENNA should be used with caution in patients with known cardiovascular disease (e.g., heart failure, history of myocardial infarction or ischemia, conduction abnormalities), cerebrovascular disease, or conditions that predispose the patient to hypotension (e.g., dehydration, hypovolemia, and treatment with antihypertensive medications). Monitoring of orthostatic vital signs should be considered in patients who are vulnerable to hypotension. 5.8 Falls Somnolence, postural hypotension, motor and sensory instability have been reported with the use of antipsychotics, including INVEGA SUSTENNA, which may lead to falls and, consequently, fractures or other fall-related injuries. For patients, particularly the elderly, with diseases, conditions, or medications that could exacerbate these effects, assess the risk of falls when initiating antipsychotic treatment and recurrently for patients on long-term antipsychotic therapy. 5.9 Leukopenia, Neutropenia, and Agranulocytosis In clinical trial and/or postmarketing experience, events of leukopenia and neutropenia have been reported temporally related to antipsychotic agents, including INVEGA SUSTENNA. Agranulocytosis has also been reported. Possible risk factors for leukopenia/neutropenia include pre-existing low white blood cell count (WBC)/absolute neutrophil count (ANC) and history of drug-induced leukopenia/neutropenia. In patients with a history of a clinically significant low WBC/ANC or a drug-induced leukopenia/neutropenia, perform a complete blood count (CBC) frequently during the first few months of therapy. In such patients, consider discontinuation of INVEGA SUSTENNA at the first sign of a clinically significant decline in WBC in the absence of other causative factors. Monitor patients with clinically significant neutropenia for fever or other symptoms or signs of infection and treat promptly if such symptoms or signs occur. Discontinue INVEGA SUSTENNA in patients with severe neutropenia (absolute neutrophil count < 1000/mm 3 ) and follow their WBC until recovery. 5.10 Hyperprolactinemia Like other drugs that antagonize dopamine D 2 receptors, paliperidone elevates prolactin levels and the elevation persists during chronic administration. Paliperidone has a prolactin-elevating effect similar to that seen with risperidone, a drug that is associated with higher levels of prolactin than other antipsychotic drugs. Hyperprolactinemia, regardless of etiology, may suppress hypothalamic GnRH, resulting in reduced pituitary gonadotrophin secretion. This, in turn, may inhibit reproductive function by impairing gonadal steroidogenesis in both female and male patients. Galactorrhea, amenorrhea, gynecomastia, and impotence have been reported in patients receiving prolactin-elevating compounds. Long-standing hyperprolactinemia when associated with hypogonadism may lead to decreased bone density in both female and male subjects. Tissue culture experiments indicate that approximately one-third of human breast cancers are prolactin dependent in vitro , a factor of potential importance if the prescription of these drugs is considered in a patient with previously detected breast cancer. An increase in the incidence of pituitary gland, mammary gland, and pancreatic islet cell neoplasia (mammary adenocarcinomas, pituitary and pancreatic adenomas) was observed in the risperidone carcinogenicity studies conducted in mice and rats [see Nonclinical Toxicology (13.1) ] . Published epidemiologic studies have shown inconsistent results when exploring the potential association between hyperprolactinemia and breast cancer. Prolactin data from two long-term, double-blind, placebo-controlled studies with INVEGA SUSTENNA are presented below; one study was in a population of patients with schizophrenia; the second study was in patients with schizoaffective disorder. Schizophrenia In a long-term maintenance trial of INVEGA SUSTENNA in schizophrenia patients (Study PSY-3001), see Clinical Studies (14.1) , elevations of prolactin to above the reference range (> 18 ng/mL in males and > 30 ng/mL in females) relative to open-label baseline at any time during the double-blind phase were noted in a higher percentage of the patients in the INVEGA SUSTENNA group than those in the placebo group in males (51.9% vs. 29.0%) and in females (50.5% vs. 42.9%). During the double-blind phase, 4 females (4.2%) in the INVEGA SUSTENNA group experienced potentially prolactin-related adverse reactions (amenorrhea N=2; galactorrhea N=1; menstruation irregular N=1), while 2 females (2.2%) in the placebo group experienced potentially prolactin-related adverse reactions (amenorrhea N=1; breast pain N=1). One male (0.9%) in the INVEGA SUSTENNA group experienced erectile dysfunction and 1 male (0.9%) in placebo group experienced gynecomastia. Prior to the double-blind phase (during the 33-week open-label phase of the long-term maintenance trial), the mean (SD) serum prolactin values at baseline were 14.9 (22.3) ng/mL in males (N=490) and 35.2 (39.6) ng/mL in females (N=358). At the end of the open-label phase, mean (SD) prolactin values were 24.7 (22.5) ng/mL in males (N=470) and 59.5 (38.1) ng/mL in females (N=333). During the open-label phases 49.2% of females and 47.7% of males experienced elevations of prolactin above the reference range relative to baseline, and a higher proportion of females experienced potentially prolactin-related adverse reactions compared to males (5.3% vs. 1.8%). Amenorrhea (2.5%) in females and no single potentially prolactin-related adverse reaction in males were observed with a rate greater than 2%. Schizoaffective Disorder In a long-term maintenance trial of INVEGA SUSTENNA in patients with schizoaffective disorder (Study SCA-3004) see Clinical Studies (14.2) , elevations of prolactin to above the reference range (> 13.13 ng/mL in males and > 26.72 ng/mL in females) relative to open-label baseline at any time during the 15-month double-blind phase were noted in a higher percentage of patients in the INVEGA SUSTENNA group than those in the placebo group in males (55.6% vs. 23.2%) and in females (44.3% vs. 25.0%). During the 15-month double-blind phase, 11 females (13.9%) in the INVEGA SUSTENNA group had 14 potentially prolactin-related adverse reactions (hyperprolactinemia N=3; blood prolactin increased N=4; libido decreased N=1; amenorrhea N=3; galactorrhea N=3), while 5 females (5.8%) in the placebo group had 6 potentially prolactin-related adverse reactions (hyperprolactinemia N=2; blood prolactin increased N=1; amenorrhea N=2; galactorrhea N=1). Six males (7.1%) in the INVEGA SUSTENNA group experienced 6 potentially prolactin-related adverse reactions (hyperprolactinemia N=4; libido decreased N=1; erectile dysfunction N=1), while 1 male (1.2%) in the placebo group experienced adverse reaction of blood prolactin increased. Prior to the 15-month double-blind phase (during the 25-week open-label phase of the long-term maintenance trial), the mean (SD) serum prolactin values at baseline were 14.6 (14.0) ng/mL in males (N=352) and 39.1 (44.6) ng/mL in females (N=302). At the end of the open-label phase, mean (SD) prolactin values were 32.8 (17.2) ng/mL in males (N=275) and 72.4 (46.5) ng/mL in females (N=239). During the open-label phase, 48.9% of females and 53.3% of males experienced elevations of prolactin above the reference range relative to baseline, and a higher proportion of females experienced potentially prolactin-related adverse reactions compared to males (10.0% vs. 9.0%). Amenorrhea (5.8%) and galactorrhea (2.9%) in females and libido decrease (2.8%) and erectile dysfunction (2.5%) in males were observed with a rate greater than 2%. 5.11 Potential for Cognitive and Motor Impairment Somnolence, sedation, and dizziness were reported as adverse reactions in subjects treated with INVEGA SUSTENNA [see Adverse Reactions (6.1) ] . Antipsychotics, including INVEGA SUSTENNA, have the potential to impair judgment, thinking, or motor skills. Patients should be cautioned about performing activities requiring mental alertness, such as operating hazardous machinery or operating a motor vehicle, until they are reasonably certain that paliperidone therapy does not adversely affect them. 5.12 Seizures In the four fixed-dose double-blind placebo-controlled studies in subjects with schizophrenia, <1% (1/1293) of subjects treated with INVEGA SUSTENNA in the recommended dose range of 39 mg to 234 mg experienced an adverse event of convulsion compared with <1% (1/510) of placebo-treated subjects who experienced an adverse event of grand mal convulsion. Like other antipsychotic drugs, INVEGA SUSTENNA should be used cautiously in patients with a history of seizures or other conditions that potentially lower the seizure threshold. Conditions that lower the seizure threshold may be more prevalent in patients 65 years or older. 5.13 Dysphagia Esophageal dysmotility and aspiration have been associated with antipsychotic drug use. INVEGA SUSTENNA and other antipsychotic drugs should be used cautiously in patients at risk for aspiration pneumonia. 5.14 Priapism Drugs with alpha-adrenergic blocking effects have been reported to induce priapism. Although no cases of priapism have been reported in clinical trials with INVEGA SUSTENNA, priapism has been reported with oral paliperidone during postmarketing surveillance. Severe priapism may require surgical intervention. 5.15 Disruption of Body Temperature Regulation Disruption of the body's ability to reduce core body temperature has been attributed to antipsychotic agents. Appropriate care is advised when prescribing INVEGA SUSTENNA to patients who will be experiencing conditions which may contribute to an elevation in core body temperature, e.g., exercising strenuously, exposure to extreme heat, receiving concomitant medication with anticholinergic activity, or being subject to dehydration.
Farmacocinética
12.3 Pharmacokinetics Absorption and Distribution Due to its extremely low water solubility, the 1-month formulation of paliperidone palmitate dissolves slowly after intramuscular injection before being hydrolyzed to paliperidone and absorbed into the systemic circulation. Following a single intramuscular dose, the plasma concentrations of paliperidone gradually rise to reach maximum plasma concentrations at a median T max of 13 days. The release of the drug starts as early as day 1 and lasts for as long as 126 days. Following intramuscular injection of single doses (39 mg – 234 mg) in the deltoid muscle, on average, a 28% higher C max was observed compared with injection in the gluteal muscle. The two initial deltoid intramuscular injections of 234 mg on day 1 and 156 mg on day 8 help attain therapeutic concentrations rapidly. The release profile and dosing regimen of INVEGA SUSTENNA results in sustained therapeutic concentrations. The AUC of paliperidone following INVEGA SUSTENNA administration was dose-proportional over a 39 mg-234 mg dose range, and less than dose-proportional for C max for doses exceeding 78 mg. The mean steady-state peak: trough ratio for an INVEGA SUSTENNA dose of 156 mg was 1.8 following gluteal administration and 2.2 following deltoid administration. Following administration of paliperidone palmitate the (+) and (-) enantiomers of paliperidone interconvert, reaching an AUC (+) to (-) ratio of approximately 1.6–1.8. Based on a population analysis, the apparent volume of distribution of paliperidone is 391 L. The plasma protein binding of racemic paliperidone is 74%. Metabolism and Elimination In a study with oral immediate-release 14 C-paliperidone, one week following administration of a single oral dose of 1 mg immediate-release 14 C-paliperidone, 59% of the dose was excreted unchanged into urine, indicating that paliperidone is not extensively metabolized in the liver. Approximately 80% of the administered radioactivity was recovered in urine and 11% in the feces. Four metabolic pathways have been identified in vivo , none of which accounted for more than 10% of the dose: dealkylation, hydroxylation, dehydrogenation, and benzisoxazole scission. Although in vitro studies suggested a role for CYP2D6 and CYP3A4 in the metabolism of paliperidone, there is no evidence in vivo that these isozymes play a significant role in the metabolism of paliperidone. Population pharmacokinetics analyses indicated no discernible difference on the apparent clearance of paliperidone after administration of oral paliperidone between extensive metabolizers and poor metabolizers of CYP2D6 substrates. The median apparent half-life of paliperidone following INVEGA SUSTENNA single-dose administration over the dose range of 39 mg – 234 mg ranged from 25 days – 49 days. Long-Acting Paliperidone Palmitate Injection versus Oral Extended-Release Paliperidone INVEGA SUSTENNA is designed to deliver paliperidone over a monthly period while extended-release oral paliperidone is administered on a daily basis. The initiation regimen for INVEGA SUSTENNA (234 mg/156 mg in the deltoid muscle on Day 1/Day 8) was designed to rapidly attain steady-state paliperidone concentrations when initiating therapy without the use of oral supplementation. In general, overall initiation plasma levels with INVEGA SUSTENNA were within the exposure range observed with 6–12 mg extended-release oral paliperidone. The use of the INVEGA SUSTENNA initiation regimen allowed patients to stay in this exposure window of 6–12 mg extended-release oral paliperidone even on trough pre-dose days (Day 8 and Day 36). The intersubject variability for paliperidone pharmacokinetics following delivery from INVEGA SUSTENNA was lower relative to the variability determined from extended-release oral paliperidone tablets. Because of the difference in median pharmacokinetic profiles between the two products, caution should be exercised when making a direct comparison of their pharmacokinetic properties. Drug Interaction Studies No specific drug interaction studies have been performed with INVEGA SUSTENNA. The information below is obtained from studies with oral paliperidone. Effects of other drugs on the exposures of paliperidone are summarized in Figure 1. After oral administration of 20 mg/day of paroxetine (a potent CYP2D6 inhibitor), an increase in mean C max and AUC values at steady-state was observed (see Figure 1 ). Higher doses of paroxetine have not been studied. The clinical relevance is unknown. After oral administration, a decrease in mean C max and AUC values at steady state is expected when patients are treated with carbamazepine, a strong inducer of both CYP3A4 and P-gp [see Drug Interactions (7.1) ] . This decrease is caused, to a substantial degree, by a 35% increase in renal clearance of paliperidone. Figure 1: The effects of other drugs on paliperidone pharmacokinetics. Clinically meaningful pharmacokinetic interaction between INVEGA SUSTENNA and valproate (including valproic acid and divalproex sodium) is not expected. Oral administration of divalproex sodium extended-release tablets (two 500 mg tablets once daily at steady-state) with oral paliperidone extended-release tablets resulted in an increase of approximately 50% in the C max and AUC of paliperidone. After oral administration of paliperidone, the steady-state C max and AUC of divalproex sodium extended-release tablets were not affected in 13 patients stabilized on divalproex sodium extended-release tablets. In a clinical study, subjects on stable doses of divalproex sodium extended-release tablets had comparable valproate average plasma concentrations when oral paliperidone extended-release tablets 3–15 mg/day was added to their existing divalproex sodium extended-release tablets treatment [see Drug Interactions (7.2) ] . In vitro studies indicate that CYP2D6 and CYP3A4 may be involved in paliperidone metabolism, however, there is no evidence in vivo that inhibitors of these enzymes significantly affect the metabolism of paliperidone; they contribute to only a small fraction of total body clearance. In vitro studies demonstrated that paliperidone is a substrate of P-glycoprotein (P-gp) [see Drug Interactions (7.2) ] . In vitro studies in human liver microsomes demonstrated that paliperidone does not substantially inhibit the metabolism of drugs metabolized by cytochrome P450 isozymes, including CYP1A2, CYP2A6, CYP2C8/9/10, CYP2D6, CYP2E1, CYP3A4, and CYP3A5. Therefore, paliperidone is not expected to inhibit clearance of drugs that are metabolized by these metabolic pathways in a clinically relevant manner. Paliperidone is also not expected to have enzyme inducing properties. Paliperidone is a weak inhibitor of P-gp at high concentrations. No in vivo data are available, and the clinical relevance is unknown. Figure 1 Studies in Specific Populations No specific pharmacokinetic studies have been performed with INVEGA SUSTENNA in specific populations. All the information is obtained from studies with oral paliperidone or is based on the population pharmacokinetic modelling of oral paliperidone and INVEGA SUSTENNA. Exposures of paliperidone in specific populations (renal impairment, hepatic impairment and elderly) are summarized in Figure 2 [see Dosage and Administration (2.5) and Use in Specific Populations (8.6) ] . After oral administration of paliperidone in patients with moderate hepatic impairment, the plasma concentrations of free paliperidone were similar to those of healthy subjects, although total paliperidone exposure decreased because of a decrease in protein binding. Paliperidone has not been studied in patients with severe hepatic impairment [see Use in Specific Populations (8.7) ] . After oral administration of paliperidone in elderly subjects, the C max and AUC increased 1.2-fold compared to young subjects. However, there may be age-related decreases in creatinine clearance [see Dosage and Administration (2.5) and Use in Specific Populations (8.5) ] . Figure 2: Effects of intrinsic factors on paliperidone pharmacokinetics. Based on in vitro studies utilizing human liver enzymes, paliperidone is not a substrate for CYP1A2; smoking should, therefore, not have an effect on the pharmacokinetics of paliperidone. Slower absorption was observed in females in a population pharmacokinetic analysis. At apparent steady-state with INVEGA SUSTENNA, the trough concentrations were similar between males and females. Lower C max was observed in overweight and obese subjects. At apparent steady-state with INVEGA SUSTENNA, the trough concentrations were similar among normal, overweight, and obese subjects. Figure 2