WARNINGS
Included as part of the "PRECAUTIONS" Section
PRECAUTIONS
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 TRINZA® is not approved for the treatment of patients with dementia-related psychosis [see BOX WARNING and Cerebrovascular Adverse Reactions, Including Stroke, In Elderly Patients With Dementia-Related Psychosis].
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, the 1-month paliperidone palmitate extended-release injectable suspension, or INVEGA TRINZA® in elderly patients with dementia. These medications are not approved for the treatment of patients with dementia-related psychosis [see BOX WARNING and Increased Mortality In Elderly Patients With Dementia-Related Psychosis].
Neuroleptic Malignant Syndrome
A potentially fatal symptom complex sometimes referred to as Neuroleptic Malignant Syndrome (NMS) has been reported in association with antipsychotic drugs, including paliperidone. 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. Consideration should be given to the long-acting nature of INVEGA TRINZA®. 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.
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 paliperidone on the QT interval were evaluated in a double-blind, active-controlled (moxifloxacin 400 mg single dose), multicenter Thorough QT study with oral paliperidone in adult patients, and in four fixed-dose efficacy studies and one maintenance study of the 1-month paliperidone palmitate injectable product.
In the Thorough 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 (QT interval corrected for heart rate using the population specified linear derived method) 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 (Cmax ss=113 ng/mL) was approximately 2-fold the exposure with the maximum recommended 819 mg dose of INVEGA TRINZA® administered in the deltoid muscle (predicted median Cmax ss=56 ng/mL). In this same study, a 4 mg dose of the immediate-release oral formulation of paliperidone, for which Cmax 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 four fixed-dose efficacy studies of the 1-month paliperidone palmitate injectable product, no subject had 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, 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.
In the long-term maintenance trial of INVEGA TRINZA® in subjects with schizophrenia, an increase in QTcLD exceeding 60 msec was observed in 1 subject (< 1%) in the open-label phase, no subject had an increase in QTcLD exceeding 60 msec after treatment with INVEGA TRINZA® in the double-blind phase, and no subject had a QTcLD value of > 480 msec at any point in the study.
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.
There is no known treatment for established tardive dyskinesia, although the syndrome 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, INVEGA TRINZA® 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 INVEGA TRINZA® , drug discontinuation should be considered. Consideration should be given to the long-acting nature of INVEGA TRINZA®. However, some patients may require treatment with INVEGA TRINZA® despite the presence of the syndrome.
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 TRINZA®. 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.
Data from the long-term maintenance trial with INVEGA TRINZA® in subjects with schizophrenia are presented in Table 5.
Table 5. Change in Fasting Glucose from the Long-Term Maintenance Trial with INVEGA TRINZA® in Subjects with Schizophrenia
|
Open-Label Phase (relative to open-label baseline) |
Double-Blind Phase (relative to double-blind baseline) |
Paliperidone Palmitatea |
Placebo |
INVEGA TRINZA® |
|
Mean change from baseline (mg/dL) |
n=397 |
n=120 |
n=138 |
Serum Glucose Change from baseline |
1.2 |
-1.6 |
-1.2 |
|
Proportion of Patients with Shifts |
|
n=397 |
n=128 |
n=148 |
Serum Glucose Normal to High (<100 mg/dL to ≥126 mg/dL) |
2.3% (9/397) |
2.3% (3/128) |
4.1% (6/148) |
a During the open-label phase, subjects received several doses of the 1-month paliperidone palmitate extended-release injectable suspension followed by a single dose of INVEGA TRINZA® [see Clinical Studies]. |
Dyslipidemia
Undesirable alterations in lipids have been observed in patients treated with atypical antipsychotics.
Data from the long-term maintenance trial with INVEGA TRINZA® in subjects with schizophrenia are presented in Table 6.
Table 6. Change in Fasting Lipids from the Long-Term Maintenance Trial with INVEGA TRINZA® in Subjects with Schizophrenia
|
Open-Label Phase (relative to open-label baseline) |
Double-Blind Phase (relative to double-blind baseline) |
Paliperidone Palmitatea |
Placebo |
INVEGA TRINZA® |
|
Mean change from baseline (mg/dL) |
Cholesterol |
n=400 |
n=120 |
n=138 |
Change from baseline |
0.5 |
-0.4 |
0.9 |
LDL |
n=396 |
n=119 |
n=138 |
Change from baseline |
1.1 |
-0.4 |
1.1 |
HDL |
n=397 |
n=119 |
n=138 |
Change from baseline |
-0.2 |
-0.5 |
-1.3 |
Triglycerides |
n=400 |
n=120 |
n=138 |
Change from baseline |
0.1 |
-2.0 |
5.1 |
|
Proportion of Patients with Shifts |
Cholesterol Normal to High |
2.0% |
3.9% |
1.4% |
(<200 mg/dL to ≥240 mg/dL) |
(8/400) |
(5/128) |
(2/148) |
LDL Normal to High
(<100 mg/dL to ≥160 mg/dL) |
0.3% (1/396) |
0.8% (1/127) |
0% (0/148) |
HDL Normal to Low
(≥40 mg/dL to <40 mg/dL) |
8.6% (34/397) |
9.4% (12/127) |
13.5% (20/148) |
Triglycerides Normal to High
(<150 mg/dL to ≥200 mg/dL) |
4.5% (18/400) |
1.6% (2/128) |
8.1% (12/148) |
a During the open-label phase, subjects received several doses of the 1-month paliperidone palmitate extended-release injectable suspension followed by a single dose of INVEGA TRINZA® [see Clinical Studies]. |
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 long-term maintenance trial with INVEGA TRINZA® in subjects with schizophrenia are presented in Table 7.
Table 7. Change in Body Weight (kg) and the Proportion of Subjects with ≥ 7% Gain in Body Weight from the Long-Term Maintenance Trial with INVEGA TRINZA® in Subjects with Schizophrenia
|
Open-Label Phase (relative to open-label baseline) |
Double-Blind Phase (relative to double-blind baseline) |
Paliperidone Palmitatea |
Placebo |
INVEGA TRINZA® |
n=466 |
n=142 |
n=157 |
Weight (kg) Change from baseline |
1.42 |
-1.28 |
0.94 |
Weight Gain ≥ 7% increase from baseline |
15.2% |
0.7% |
9.6% |
a During the open-label phase, subjects received several doses of the 1-month paliperidone palmitate extended-release injectable suspension followed by a single dose of INVEGA TRINZA® [see Clinical Studies]. |
Orthostatic Hypotension And Syncope
Paliperidone can induce orthostatic hypotension and syncope in some patients because of its alpha-adrenergic blocking activity. In the long-term maintenance trial, syncope was reported in < 1% (1/506) of subjects treated with the 1-month paliperidone palmitate extended-release injectable suspension during the open-label phase; there were no cases reported during the double-blind phase in either treatment group. In the long-term maintenance trial, orthostatic hypotension was reported as an adverse event by < 1% (1/506) of subjects treated with the 1-month paliperidone palmitate extended-release injectable suspension and < 1% (1/379) of subjects after receiving a single-dose of INVEGA TRINZA® during the open-label phase; there were no cases reported during the double-blind phase in either treatment group.
INVEGA TRINZA® 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.
Falls
Somnolence, postural hypotension, motor and sensory instability have been reported with the use f antipsychotics, including INVEGA TRINZA®, which may lead to falls and, consequently, actures or other fall-related injuries. For patients, particularly the elderly, with diseases, onditions, or medications that could exacerbate these effects, assess the risk of falls when nitiating antipsychotic treatment and recurrently for patients on long-term antipsychotic therapy.
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 TRINZA® . 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 TRINZA® 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 treated promptly if such symptoms or signs occur. Discontinue INVEGA TRINZA® in patients with severe neutropenia (absolute neutrophil count <1000/mm3) and follow their WBC until recovery.
Hyperprolactinemia
Like other drugs that antagonize dopamine D2 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]. Neither clinical studies nor epidemiologic studies conducted to date have shown an association between chronic administration of this class of drugs and tumorigenesis in humans, but the available evidence is too limited to be conclusive.
In a long-term maintenance trial of INVEGA TRINZA®, 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 double-blind phase were noted in a higher percentage of males in the INVEGA TRINZA® group than in the placebo group (46% vs. 25%) and in a higher percentage of females in the INVEGA TRINZA® group than in the placebo group (32% vs. 15%). During the double-blind phase, 1 female (2.4%) in the INVEGA TRINZA® group experienced an adverse reaction of amenorrhea, while no potentially prolactin-related adverse reactions were noted among females in the placebo group. There were no potentially prolactin-related adverse reactions among males in either group.
Prior to the double-blind phase (during the 29-week open-label phase of the long-term maintenance trial), the mean (SD) serum prolactin values at baseline in males (N=368) were 17.1 (13.55) ng/mL and 51.6 (40.85) ng/mL in females (N=122). Twelve weeks after a single injection of INVEGA TRINZA® at the end of the open-label phase, mean (SD) prolactin values were 25.8 (13.49) ng/mL in males (N=322) and 70.6 (40.23) ng/mL in females (N=107). During the open-label phases 27% of females and 42% 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 (7.9% vs. 3.7%). Amenorrhea (4.7%) and galactorrhea (3.1%) were the most commonly observed (≥3%) potentially prolactin-related adverse reactions in females. Among males in the open-label phase, no potentially prolactin-related adverse reaction was observed with a rate greater than 3%.
Potential For Cognitive And Motor Impairment
Somnolence, sedation, and dizziness were reported as adverse reactions in subjects treated with INVEGA TRINZA® [see ADVERSE REACTIONS]. Antipsychotics, including INVEGA TRINZA®, 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.
Seizures
In the long-term maintenance trial there were no reports of seizures or convulsions. In the pivotal clinical studies with the 1-month paliperidone palmitate extended-release injectable suspension which included four fixed-dose, double-blind, placebo-controlled studies in subjects with schizophrenia, <1% (1/1293) of subjects treated with the 1-month injection 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 TRINZA® 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.
Dysphagia
Esophageal dysmotility and aspiration have been associated with antipsychotic drug use. INVEGA TRINZA® and other antipsychotic drugs should be used cautiously in patients at risk for aspiration pneumonia.
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 TRINZA®, priapism has been reported with oral paliperidone during postmarketing surveillance. Severe priapism may require surgical intervention.
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 TRINZA® 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.
Patient Counseling Information
Advise the patient to read the FDA-approved patient labeling (PATIENT INFORMATION).
Neuroleptic Malignant Syndrome (NMS)
Counsel patients about a potentially fatal side effect referred to as Neuroleptic Malignant Syndrome (NMS) that has been reported in association with administration of antipsychotic
drugs. Patients should contact their health care provider or report to the emergency room if they experience the following signs and symptoms of NMS, including hyperpyrexia, muscle rigidity, altered mental status, and evidence of autonomic instability (irregular pulse or blood pressure, tachycardia, diaphoresis, and cardiac dysrhythmia [see WARNINGS AND PRECAUTIONS].
Tardive Dyskinesia
Counsel patients on the signs and symptoms of tardive dyskinesia and to contact their health care provider if these abnormal movements occur [see WARNINGS AND PRECAUTIONS].
Metabolic Changes
Educate patients about the risk of metabolic changes, how to recognize symptoms of hyperglycemia (high blood sugar) and diabetes mellitus (e.g., polydipsia, polyuria, polyphagia, and weakness), and the need for specific monitoring, including blood glucose, lipids, and weight
[see WARNINGS AND PRECAUTIONS].
Orthostatic Hypotension
Educate patients about the risk of orthostatic hypotension, particularly at the time of initiating treatment, re-initiating treatment, or increasing the dose [see WARNINGS AND PRECAUTIONS].
Leukopenia/Neutropenia
Advise patients with a pre-existing low WBC or a history of drug induced leukopenia/neutropenia they should have their CBC monitored while taking INVEGA TRINZA® [see WARNINGS AND PRECAUTIONS].
Hyperprolactinemia
Counsel patients on signs and symptoms of hyperprolactinemia that may be associated with chronic use of INVEGA TRINZA®. Advise them to seek medical attention if they experience any of the following: amenorrhea or galactorrhea in females, erectile dysfunction or gynecomastia in males. [See WARNINGS AND PRECAUTIONS]
Interference With Cognitive And Motor Performance
As INVEGA TRINZA® has the potential to impair judgment, thinking, or motor skills, caution patients about operating hazardous machinery, including automobiles, until they are reasonably certain that INVEGA TRINZA® therapy does not affect them adversely [see WARNINGS AND PRECAUTIONS].
Priapism
Advise patients of the possibility of painful or prolonged penile erections (priapism). Instruct the patient to seek immediate medical attention in the event of priapism [WARNINGS AND PRECAUTIONS].
Heat Exposure And Dehydration
Counsel patients on the importance of avoiding overheating and dehydration [see WARNINGS AND PRECAUTIONS].
Concomitant Medication
Advise patients to inform their health care providers if they are taking, or plan to take any prescription or over-the-counter drugs, as there is a potential for interactions [see DRUG INTERACTIONS].
Pregnancy
Advise patients that INVEGA TRINZA® may cause extrapyramidal and/or withdrawal symptoms in a neonate and to notify their healthcare provider if they become pregnant or intend to become pregnant during treatment with INVEGA TRINZA®. Advise patients that there is a pregnancy registry that monitors pregnancy outcomes in women exposed to INVEGA TRINZA® during pregnancy [see Use In Specific Populations].
Nonclinical Toxicology
Carcinogenesis, Mutagenesis, Impairment Of Fertility
Carcinogenesis
No carcinogenicity studies were conducted with the 3-month paliperidone palmitate extended-release injectable suspension.
The carcinogenic potential of intramuscular injection of 1-month paliperidone palmitate extended-release injectable suspension was assessed in rats. There was an increase in mammary gland adenocarcinomas in female rats at 16, 47, and 94 mg/kg/month, which are 0.2, 0.6 and 1 times the maximum recommended human dose (MRHD) of 819 mg of 3-month paliperidone palmitate extended-release injectable suspension on mg/m2 basis. A no-effect dose was not established. Male rats showed an increase in mammary gland adenomas, fibroadenomas, and carcinomas at doses, which are 0.6 and 1 times the MRHD of 819 mg of 3-month paliperidone palmitate extended-release injectable suspension on mg/m2 basis. A carcinogenicity study in mice has not been conducted with the 1-month paliperidone palmitate extended-release injectable suspension.
Carcinogenicity studies of risperidone, which is extensively converted to paliperidone in rats, mice, and humans, were conducted in Swiss albino mice and Wistar rats. Risperidone was administered in the diet for 18 months to mice and for 25 months to rats at daily doses of 0.63, 2.5, and 10 mg/kg/day, which are 0.2 to 3 times in mice and 0.4 to 6 times in rats the MRHD of 16 mg/day of risperidone on mg/m2 basis. A maximum tolerated dose was not achieved in male mice. There were statistically significant increases in pituitary gland adenomas, endocrine pancreas adenomas, and mammary gland adenocarcinomas. The no-effect dose for these tumors was less than or equal to the MRHD of risperidone on mg/m2 basis (see RISPERDAL® package insert). An increase in mammary, pituitary, and endocrine pancreas neoplasms has been found in rodents after chronic administration of other antipsychotic drugs and is considered to be mediated by prolonged dopamine D2-receptor antagonism and hyperprolactinemia. The relevance of these tumor findings in rodents in terms of human risk is unknown [see WARNINGS AND PRECAUTIONS].
Mutagenesis
No mutagenesis studies were conducted with the 3-month paliperidone palmitate extended-release injectable suspension.
Paliperidone palmitate showed no genotoxicity in the in vitro Ames bacterial reverse mutation test and mouse lymphoma assay. Paliperidone was not genotoxic in the in vitro Ames bacterial reverse mutation test, mouse lymphoma assay and the in vivo rat bone marrow micronucleus test.
Impairment Of Fertility
No fertility studies were conducted with the 3-month paliperidone palmitate extended-release injectable suspension.
In a rat fertility study orally administered paliperidone increased pre-and post-implantation losses and slightly decreased the number of live embryos at doses up to 2.5 mg/kg/day, a dose which is 2 times the MRHD of 12 mg on mg/m2 basis. This dose also caused slight maternal toxicity but there was no effect on the percentage of treated female rats that became pregnant. Pre-and post-implantation losses, the number of live embryos and maternal toxicity were not affected at 0.63 mg/kg/day, a dose, which is half of the MRHD of 12 mg/day of orally administered paliperidone on mg/m2 basis. The fertility of male rats was not affected at oral doses of paliperidone of up to 2.5 mg/kg/day, which are up to 2 times the MRHD of 12 mg on mg/m2 basis, although sperm count and sperm viability studies were not conducted with paliperidone.
In a sub-chronic study in Beagle dogs with risperidone, which is extensively converted to paliperidone in dogs and humans, all doses tested 0.31 to 5.0 mg/kg/day, which are 0.6 to 10 times the MRHD of 16 mg on mg/m2 basis, resulted in decreases in serum testosterone and decreases in sperm motility and concentration. Serum testosterone and sperm parameters partially recovered, but remained decreased at the last observation two months after treatment was discontinued.
Use In Specific Populations
Pregnancy
Pregnancy Exposure Registry
There is a pregnancy exposure registry that monitors pregnancy outcomes in women exposed to atypical antipsychotics, including INVEGA TRINZA®, during pregnancy. For more information contact the National Pregnancy Registry for Atypical Antipsychotics at 1-866-961-2388 or visit http://womensmentalhealth.org/clinical-and-research-programs/pregnancyregistry/.
Risk Summary
Neonates exposed to antipsychotic drugs during the third trimester of pregnancy are at risk for extrapyramidal and/or withdrawal symptoms following delivery. There are no available data on INVEGA TRINZA® use in pregnant women to inform any drug-associated risks for birth defects or miscarriage. Paliperidone has been detected in plasma at very low levels up to 18 months after a single-dose administration of INVEGA TRINZA®, and the clinical significance of INVEGA TRINZA® administered before pregnancy or anytime during pregnancy is not known [see CLINICAL PHARMACOLOGY]. No teratogenicity was observed when pregnant rats were injected intramuscularly with the 1-month paliperidone palmitate extended-release injectable suspension during organogenesis at doses up to 250 mg/kg, which is 3 times the maximum recommended human dose (MRHD) of 819 mg of the 3-month paliperidone palmitate injectable suspension on mg/m2 basis.
Advise pregnant women of the potential risk to a fetus. The background risk of major birth defects and miscarriage for the indicated population are unknown. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively.
Clinical Considerations
Fetal/Neonatal Adverse Reactions
Extrapyramidal and/or withdrawal symptoms, including agitation, hypertonia, hypotonia, tremor, somnolence, respiratory distress, and feeding disorder have been reported in neonates who were exposed to antipsychotic drugs during the third trimester of pregnancy. These symptoms have varied in severity. Monitor neonates for extrapyramidal and/or withdrawal symptoms and manage symptoms appropriately. Some neonates recover within hours or days without specific treatment; others may require prolonged hospitalization.
Data
Human Data
There have been reports of agitation, hypertonia, hypotonia, tremor, somnolence, respiratory distress, and feeding disorder in neonates following in utero exposure to antipsychotics in the third trimester. These complications have varied in severity; while in some cases symptoms have been self-limited, in other cases neonates have required intensive care unit support and prolonged hospitalization.
Animal Data
No developmental toxicity studies were conducted with the 3-month paliperidone palmitate extended-release injectable suspension.
No treatment-related effects on the offspring were observed when pregnant rats were injected intramuscularly with 1-month paliperidone palmitate extended-release injectable suspension during the period of organogenesis at doses up to 250 mg/kg, which is 3 times the MRHD of 819 mg of the 3-month paliperidone palmitate extended-release injectable suspension on mg/m2 basis.
No increases in fetal abnormalities were observed when paliperidone was administered orally to pregnant rats and rabbits during the period of organogenesis at doses up to 8 times the MRHD of 12 mg/day of oral paliperidone on mg/m2 basis.
In rat reproduction studies with risperidone, which is extensively converted to paliperidone in rats and humans, pup deaths increased at oral doses, which are less than the MRHD of risperidone on mg/m2 basis (see RISPERDAL® package insert).
Lactation
Paliperidone is present in human breast milk; however, there are insufficient data to assess the amount in human milk, the effects on the breastfed infant, or the effects on milk production. Paliperidone has been detected in plasma at very low levels up to 18 months after a single-dose administration of INVEGA TRINZA®, and the clinical significance on the breastfed infant is not known [see CLINICAL PHARMACOLOGY].
Pediatric Use
Safety and effectiveness of INVEGA TRINZA® in patients less than 18 years of age have not been established. Use of INVEGA TRINZA® is not recommended in pediatric patients because of the potential longer duration of an adverse event compared to shorter-acting products. In clinical trials of oral paliperidone, there were notably higher incidences of dystonia, hyperkinesia, tremor, and parkinsonism in the adolescent population as compared to the adult studies.
Juvenile Animal Data
No juvenile animal studies were conducted with the 3-month paliperidone palmitate extended-release injectable suspension.
Juvenile rats administered daily oral doses of paliperidone from days 24 to 73 of age had a reversible impairment of performance in a test of learning and memory in females only. The no-effect dose of 0.63 mg/kg/day produced plasma exposure (AUC) to paliperidone similar to that in adolescents. No other consistent effects on neurobehavior or reproductive development were seen up to the highest dose tested which produced plasma exposure to paliperidone 2 to 3 times that in adolescents.
Juvenile dogs administered for 40 weeks daily oral doses of risperidone, which is extensively metabolized to paliperidone in animals and humans, at 0.31, 1.25, and 5 mg/kg/day, had decreased bone length and density with no-effect dose of 0.31 mg/kg/day, which produced plasma levels (AUC) of risperidone plus paliperidone similar to those in children and adolescents receiving the MRHD of 6 mg/day of risperidone. In addition, delayed sexual maturation was seen at all doses in both males and females. All adverse effects showed little or no reversibility in females after a 12-week drug-free recovery period.
The long-term effects of paliperidone on growth and sexual maturation have not been fully evaluated in children and adolescents.
Geriatric Use
Clinical studies of INVEGA TRINZA® did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients.
This drug is known to be substantially excreted by the kidney and clearance is decreased in patients with renal impairment [see CLINICAL PHARMACOLOGY], who should be given reduced doses. Because elderly patients are more likely to have decreased renal function, monitor renal function and adjust dosage [see DOSAGE AND ADMINISTRATION].
Renal Impairment
Use of INVEGA TRINZA® is not recommended in patients with moderate or severe renal impairment (creatinine clearance < 50 mL/min). Use of INVEGA TRINZA® in patients with mild renal impairment (creatinine clearance ≥ 50 mL/min to < 80 mL/min) is based on the previous dose of the 1-month paliperidone palmitate extended-release injectable suspension that the patient was stabilized on prior to initiation of INVEGA TRINZA® [see DOSAGE AND ADMINISTRATION and CLINICAL PHARMACOLOGY].
Hepatic Impairment
INVEGA TRINZA® has not been studied in patients with hepatic impairment. Based on a study with oral paliperidone, no dose adjustment is required in patients with mild or moderate hepatic impairment. Paliperidone has not been studied in patients with severe hepatic impairment [see CLINICAL PHARMACOLOGY].
Patients With Parkinson’s Disease Or Lewy Body Dementia
Patients with Parkinson’s Disease or Dementia with Lewy Bodies can experience increased sensitivity to INVEGA TRINZA®. Manifestations can include confusion, obtundation, postural instability with frequent falls, extrapyramidal symptoms, and clinical features consistent with neuroleptic malignant syndrome.