Ariphrenz Tablets

    Ariphrenz Tablets

    S5
    PDF Leaflet Revision Date: 21 February 2023


    Clinical Summary

    Quick overview from the medicine insert

    Indication

    Treatment of schizophrenia and acute manic episodes in Bipolar I disorder.

    Dosage (summary)

    Starting dose: 10-15 mg/day; Maintenance: 15 mg/day; Max: 30 mg/day.

    Special Populations

    • Elderly
    • Renal impairment
    • Hepatic impairment

    Pregnancy & Breastfeeding

    Safety in pregnancy not established; excreted in breast milk.

    Key Drug Interactions

    • CYP3A4 inhibitors
    • CYP2D6 inhibitors
    • CYP3A4 inducers

    Contraindications

    • Hypersensitivity to aripiprazole
    • Children under 18

    Common side effects

    • Akathisia
    • Nausea
    • Sedation
    • Dizziness
    • Constipation

    Counselling Points

    • Monitor for suicidal thoughts
    • Avoid alcohol
    • Caution with driving

    Serious warnings

    • Risk of suicide
    • Neuroleptic Malignant Syndrome
    • Tardive dyskinesia
    Important Disclaimer

    The Ariphrenz Tablets professional information leaflet below is the property of Ascend Laboratories and is provided on Medinsert exactly as issued, with no.. alterations or editorial changes. We make every effort to keep content current by updating documents as soon as new versions become available. Medinsert serves as a trusted access point for healthcare professionals, but does not replace official sources or clinical judgement. For more details, please read our full disclaimer. read more>>

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    Clinical Particulars

    Section 4 of the official insert — extracted exactly as issued, no alterations

    4.1 Therapeutic indications

    Schizophrenia: Ariphrenz is indicated for the treatment of schizophrenia and for the maintenance of clinical improvements in adults.

    Bipolar Mania: Ariphrenz is indicated for the treatment of acute manic episodes associated with Bipolar I disorder and for the prevention of recurrence of new manic episode in patients who experienced predominantly manic episodes and who responded to Ariphrenz treatment.

    4.2 Posology and method of administration

    Posology: Schizophrenia: The recommended starting dose for Ariphrenz is 10 or 15 mg/day with a maintenance dose of 15 mg/day administered on a once-a-day schedule without regard to meals. Ariphrenz is effective in a dose range of 10 to 30 mg/day. Enhanced efficacy at doses higher than the recommended daily dose of 15 mg has not been demonstrated although individual patients may benefit from a higher dose. The maximum daily dose should not exceed 30 mg.

    Bipolar Mania: The recommended starting dose for Ariphrenz is 15 mg administered on a once-a-day schedule without regard to meals as monotherapy or combination therapy (see section 4.5). Some patients may benefit from a higher dose. The maximum daily dose should not exceed 30 mg.

    Recurrence prevention of manic episodes in Bipolar I disorder: For preventing recurrence of manic episodes in patients who have been receiving Ariphrenz , continue therapy at the same dose. Adjustments of daily dose, including dose reduction should be considered on the basis of clinical status. Prevention of depressive episodes using Ariphrenz monotherapy has not been established. Supplementary therapy should be considered for the prevention or treatment of depressive episodes, as clinically appropriate.

    Concomitant Medicines: Dosage adjustment for patients taking Ariphrenz concomitantly with potent CYP3A4 or CYP2D6 inhibitors : When concomitant administration of a potent CYP3A4 or CYP2D6 inhibitor with Ariphrenz occurs, the Ariphrenz dose should be reduced to one-half of the usual dose. When the CYP3A4 or CYP2D6 inhibitor is withdrawn from the combination therapy, the Ariphrenz dose should then be increased.

    Dosage adjustment for patients taking potent CYP3A4 inducers: When a potent CYP3A4 inducer is added to Ariphrenz therapy, the Ariphrenz dose should be doubled. Additional dose increases of Ariphrenz should be based on clinical evaluation. When the CYP3A4 inducer is withdrawn from the combination therapy, the Ariphrenz dose should be reduced.

    Method of administration: Ariphrenz is for oral use.

    4.3 Contraindications

    Ariphrenz is contra-indicated in u2022 patients with hypersensitivity to aripiprazole or any other component of Ariphrenz as listed in section 6.1. The safety and efficacy of Ariphrenz in children under 18 years of age has not been established.

    4.4 Special warnings and precautions for use

    During antipsychotic treatment, improvement in the patient's clinical condition may take several days to some weeks. Patients should be closely monitored throughout this period.

    Suicide: The possibility of suicide attempt is inherent in psychotic illnesses and mood disorders and close supervision of high-risk patients should accompany medicine therapy. Prescriptions for Ariphrenz should be written for the smallest quantity of tablets consistent with good patient management, in order to reduce the risk of overdose.

    Cardiovascular disorders: Aripiprazole as in Ariphrenz should be used with caution in patients with known cardiovascular disease (history of myocardial infarction or ischaemic heart disease, heart failure, or conduction abnormalities), cerebrovascular disease, conditions which would predispose patients to hypotension (dehydration, hypovolemia, and treatment with antihypertensive medicines) or hypertension, including accelerated or malignant. Cases of venous thromboembolism (VTE) have been reported with antipsychotic medicines. Since patients treated with antipsychotics often present with acquired risk factors for VTE, all possible risk factors for VTE should be identified before and during treatment with Ariphrenz and preventive measures undertaken.

    QT prolongation: Aripiprazole as in Ariphrenz should be used with caution in patients with a family history of QT prolongation (see section 4.8 ).

    Tardive dyskinesia: As the risk of tardive dyskinesia increases with long-term exposure to antipsychotic treatment, if signs and symptoms of tardive dyskinesia appear in a patient on Ariphrenz , dose reduction or discontinuation should be considered (see section 4.8). These symptoms can temporally deteriorate or can even arise after discontinuation of treatment.

    Neuroleptic Malignant Syndrome (NMS): NMS is a potentially fatal symptom complex associated with antipsychotics. Clinical symptoms 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. Elevated creatine phosphokinase and rhabdomyolysis, not necessarily associated with NMS, were also reported. If a patient develops signs and symptoms indicative of NMS, or present with unexplained high fever without additional clinical manifestation of NMS, all antipsychotic medicine, including Ariphrenz must be discontinued.

    Seizure: Ariphrenz should be used cautiously in patients with a history of seizure disorder or have conditions or have associated with seizures.

    Elderly Patients with Dementia-Related Psychosis: Elderly patients with dementia-related psychosis treated with Ariphrenz are at an increased risk of death. 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. Cerebrovascular adverse events (e.g. stroke, transient ischaemic attack) including fatalities were reported in elderly patients with psychosis associated with Alzheimeru2019s disease . Ariphrenz is not indicated for the treatment of patients with dementia-related psychosis.

    Orthostatic hypotension: Ariphrenz may be associated with orthostatic hypotension, perhaps due to its u0251 -1 adrenergic receptor antagonism. Ariphrenz must be used with caution in patients with hypotension predisposition.

    Hypersensitivity: Hypersensitivity reactions, characterised by allergic symptoms, may occur with Ariphrenz.

    Dysphagia: Oesophageal dysmotility and aspiration have been associated with the use of antipsychotics, including Ariphrenz. Ariphrenz should be used cautiously in patients at risk for aspiration pneumonia.

    Hyperglycaemia/ Diabetes Mellitus: Hyperglycaemia, in some cases extreme and associated with diabetic ketoacidosis, hyperosmolar coma, or death, has been reported in patients treated with aripiprazole as in Ariphrenz. Risk factors that may predispose patients to severe complications include obesity and family history of diabetes. Patients treated with any antipsychotics, including Ariphrenz should be observed for signs and symptoms of hyperglycaemia (such as polydipsia, polyuria, polyphagia and weakness) and patients with diabetes mellitus or with risk factors for diabetes mellitus should be monitored regularly for worsening of glucose control. Patients who develop symptoms of hyperglycaemia during treatment with Ariphrenz should undergo fasting blood glucose testing. In some cases, hyperglycaemia has resolved when aripiprazole as in Ariphrenz was discontinued, however some patients required continuation of anti-diabetic treatment despite discontinuation of the suspect medicine.

    Weight Gain: Antipsychotic medicines have been associated with metabolic changes, including weight gain. Weight gain has been reported post-marketing experience among patients prescribed oral aripiprazole as in Ariphrenz . When seen, it is usually in those with significant risk factors such as history of diabetes, thyroid disorder or pituitary adenoma. A ripiprazole as in Ariphrenz has not been shown to induce clinically relevant weight gain.

    Body temperature regulation: Disruption of the bodyu2019s ability to reduce core body temperature has been attributed to antipsychotic medicines. Appropriate care is advised when prescribing Ariphrenz for 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 medicine with anticholinergic activity, or being subject to dehydration.

    Pathological gambling and other impulse control disorders: Patients can experience increased urges, particularly for gambling, and the inability to control these urges while taking Ariphrenz . Other urges, reported, include increased sexual urges, compulsive shopping, binge or compulsive eating, and other impulsive and compulsive behaviours. It is important for prescribers to ask patients or their caregivers specifically about the development of new or increased gambling urges, sexual urges, compulsive shopping, binge or compulsive eating, or other urges while being treated with Ariphrenz . It should be noted that impulse-control symptoms can be associated with the underlying disorder; however, in some cases, urges were reported to have stopped when the dose was reduced, or the medicine was discontinued. Impulse control disorders may result in harm to the patient and others if not recognised. Consider dose reduction or stopping the medicine if a patient develops such urges while taking Ariphrenz (see section 4.8).

    Patients with ADHD comorbidity: Despite the high comorbidity frequency of Bipolar I disorder and ADHD, very limited safety data are available on concomitant use of aripiprazole as in Ariphrenz and stimulants; therefore, extreme caution should be taken when these medicines are co-administered.

    Falls: Aripiprazole as in Ariphrenz may cause somnolence, postural hypotension, motor and sensory instability, which may lead to falls. Caution should be taken when treating patients at higher risk, and a lower starting dose should be considered (e.g. elderly or debilitated patients; see section 4.2).

    Excipients: Patients with rare hereditary problems of galactose intolerance, total lactase deficiency or glucose-galactose malabsorption should not take Ariphrenz.

    4.5 Interaction with other medicines and other forms of interaction

    General: Due to its u03b11 -adrenergic receptor antagonism, Ariphrenz has the potential to enhance the effect of certain antihypertensive medicines. There was no effect of a high fat meal on pharmacokinetic of Ariphrenz. Given the primary central nervous system (CNS) effects of Ariphrenz , caution should be used when Ariphrenz is administered in combination with CNS medicines with overlapping adverse reactions such as sedation (see section 4.8). Combination use of Ariphrenz with alcohol should be avoided.

    If Ariphrenz is administered concomitantly with medicines known to cause QT prolongation or electrolyte imbalance, caution should be used.

    Valproate and Lithium: When either valproate or lithium was administered concomitantly with aripiprazole as in Ariphrenz , there was was no clinically significant change in Ariphrenz concentrations and therefore no dose adjustment is necessary when either valproate or lithium is administered with Ariphrenz.

    Potential for other medicines to affect Ariphrenz: A gastric acid blocker, the H 2 antagonist famotidine, reduces Ariphrenz rate of absorption but this effect is deemed not clinically relevant. Ariphrenz is metabolised by multiple pathways involving the CYP2D6 and CYP3A4 enzymes but not CYP1A enzymes. Thus, no dosage adjustment is required for smokers.

    Ketoconazole and other CYP3A4 inhibitors: A strong inhibitor of CYP3A4 (such as ketoconazole) increased Ariphrenz AUC and Cmax by 63 % and 37 %, respectively. The AUC and Cmax of dehydro-aripiprazole increased by 77 % and 43 %, respectively. In CYP2D6 poor metabolisers, concomitant use of strong inhibitors of CYP3A4 may result in higher plasma concentrations of Ariphrenz compared to that in CYP 2D6 extensive metabolisers. When considering concomitant administration of ketoconazole or other strong CYP3A4 inhibitors with Ariphrenz , potential benefits should outweigh the potential risks to the patient. When concomitant administration of ketoconazole with Ariphrenz occurs, Ariphrenz dose should be reduced to approximately one-half of its prescribed dose.

    Other strong inhibitors of CYP3A4, such as itraconazole and HIV protease inhibitors may be expected to have similar effects and similar dose reductions should therefore be applied (see SECTION 4.8).

    Upon discontinuation of the CYP2D6 or CYP3A4 inhibitor, the dosage of Ariphrenz should be increased to the level prior to the initiation of the concomitant therapy.

    When weak inhibitors of CYP3A4 (e.g. diltiazem) or CYP2D6 (e.g. escitalopram) are used concomitantly with Ariphrenz , modest increases in plasma Ariphrenz concentrations may be expected.

    Quinidine and other CYP2D6 inhibitors: A strong inhibitor of CYP2D6 (quinidine) increased aripiprazole as in Ariphrenz AUC by 107 %, while C max was unchanged. The AUC and C max of dehydro-aripiprazole, the active metabolite, decreased by 32 % and 47 %, respectively. Ariphrenz dose should be reduced to approximately one-half of its prescribed dose when concomitant administration of Ariphrenz with quinidine occurs. Other strong inhibitors of CYP2D6, such as fluoxetine and paroxetine, may be expected to have similar effects and similar dose reductions should therefore be applied.

    Carbamazepine and other CYP3A4 inducers: After concomitant administration of carbamazepine, a potent inducer of CYP3A4, the geometric means of C max and AUC for aripiprazole as in Ariphrenz were 68 % and 73 % lower, respectively, compared to when Ariphrenz (30 mg) was administered alone. Similarly, for dehydro-aripiprazole the geometric means of C max and AUC after carbamazepine co-administration were 69 % and 71 % lower, respectively, than those following treatment with aripiprazole as in Ariphrenz alone. Ariphrenz dose should be doubled when concomitant administration of Ariphrenz occurs with carbamazepine. Other potent inducers of CYP3A4 (such as rifampicin, rifabutin, phenytoin, phenobarbital, primidone, efavirenz, nevirapine and St. John's Wort) may be expected to have similar effects and similar dose increases should therefore be applied.

    Upon discontinuation of potent CYP3A4 inducers, the dosage of Ariphrenz should be reduced to the recommended dose.

    Serotonin Syndrome: Cases of serotonin syndrome have been reported in patients taking aripiprazole as in Ariphrenz , and possible signs and symptoms for this condition can occur especially in cases of concomitant use with other serotonergic medicines, such as SSRI/ SNRI, or with medicines that are known to increase Ariphrenz concentrations (see section 4.8).

    Potential for Ariphrenz to affect other medicines: 10 u2013 30 mg/ day doses of Ariphrenz had no significant effect on the metabolism of substrates of CYP2D6 (dextromethorphan/ 3-methoxymorphinan ratio), CYP2C9 (warfarin), CYP2C19 (omeprazole), and CYP3A4 (dextromethorphan). Additionally, aripiprazole as in Ariphrenz and dehydro-aripiprazole did not show potential for altering CYP1A2-mediated metabolism in vitro. Thus, Ariphrenz is unlikely to cause clinically important medicine interactions mediated by these enzymes. When Ariphrenz was administered concomitantly with lamotrigine, there was no clinically important change in lamotrigine concentrations.

    4.6 Fertility, pregnancy and lactation

    Pregnancy: Safety of use of Ariphrenz in pregnancy has not been established. Patients should be advised to notify their medical practitioner if they become pregnant or intend to become pregnant during treatment with Ariphrenz.

    Neonates exposed to antipsychotics (including Ariphrenz ) during the third trimester of pregnancy are at risk of adverse reactions including extrapyramidal and/or withdrawal symptoms that may vary in severity and duration following delivery. There have been reports of agitation, hypertonia, hypotonia, tremor, somnolence, respiratory distress, or feeding disorder. Consequently, newborns should be monitored carefully.

    Breastfeeding: Safety of use of aripiprazole as in Ariphrenz during lactation has not been established. Aripiprazole as in Ariphrenz is excreted in human breast milk.

    4.7 Effects on ability to drive and use machines

    Ariphrenz has minor to moderate influence on the ability to drive and use machines due to potential nervous system and visual effects, such as sedation, somnolence, syncope, vision blurred and diplopia (see section 4.8). Patients should be cautioned about operating hazardous machinery, including motor vehicles until they are reasonably certain that Ariphrenz does not adversely affect them.

    4.8 Undesirable effects

    A. Summary of the safety profile The frequent adverse reactions are akathisia and nausea each occurring in more than 3 % of patients treated with oral aripiprazole.

    B. Tabulated list of the adverse reactions Adverse reactions reported are shown below. Frequencies were defined using the following convention: frequent, less frequent, frequency unknown :

    Class/ Frequency Adverse reactions Blood and the lymphatic system disorders Less frequent Leukopenia, neutropenia, thrombocytopenia Endocrine disorders Less Frequent Hyperprolactinaemia, blood prolactin decreased Metabolism and nutrition disorders Less frequent Diabetes mellitus, hyperglycaemia, diabetic ketoacidosis, diabetic hyperosmolar coma, hyponatremia, anorexia Frequency unknown Weight decreased and weight gain Psychiatric disorders Frequent Insomnia, anxiety, restlessness Less frequent Depression, hypersexuality Frequency unknown Suicide attempt, suicidal ideation and completed suicide, pathological gambling, impulse-control disorder, binge eating, compulsive shopping, poriomania, aggression, agitation, nervousness Nervous system disorders Frequent: Akathisia, extrapyramidal disorder, tremor, headache, sedation, somnolence, dizziness Less frequent Tardive dyskinesia, dystonia, grand mal convulsion, speech disorder Frequency unknown Neuroleptic Malignant Syndrome, serotonin syndrome Eye disorders Frequent Vision blurred Less frequent Diplopia, photophobia Frequency unknown Oculogyric crisis Cardiac disorders Less frequent Tachycardia Frequency unknown Sudden death unexplained, Torsades de pointes, ventricular arrhythmia, cardiac arrest, bradycardia Respiratory disorders Less frequent Hiccups, aspiration pneumonia Frequency unknown Laryngospasm, oropharyngeal spasm Hepatobiliary disorders Less frequent Hepatic failure, hepatitis, jaundice Gastrointestinal disorders Frequent Constipation, dyspepsia, nausea, salivary hypersecretion, vomiting, stomach discomfort Less frequent Pancreatitis, dysphagia, diarrhoea Frequency unknown Abdominal discomfort Skin and subcutaneous tissue disorders Frequency unknown Rash, photosensitivity reaction, alopecia, hyperhidrosis Musculoskeletal disorders Less frequent Rhabdomyolysis, myalgia, stiffness Renal and urinary disorders Less frequent Urinary incontinence, urinary retention Pregnancy, puerperium and perinatal conditions Frequency unknown Medicine withdrawal syndrome neonatal (see section 4.6) Reproductive system disorders Less frequent priapism Immune system disorders Less frequent Allergic reaction (e.g. anaphylactic reaction, angioedema including swollen tongue, tongue oedema, face oedema, pruritus allergic, or urticaria). General disorders Frequent Fatigue, asthenia Less frequent Temperature regulation disorder e.g. (hypothermia, pyrexia), chest pain, peripheral oedema. Investigations Less frequent Alanine aminotransferase increased, aspartate aminotransferase increased, gamma-glutamyltransferase increased, alkaline phosphatase increased, QT prolonged, blood glucose increased, glycosylated haemoglobin increased, blood glucose fluctuation, creatine phosphokinase increased Vascular disorders Less frequent Orthostatic hypertension Frequency unknown Hypertension, syncope, venous thromboembolism (including pulmonary embolism and deep vein thrombosis)

    4.9 Overdose

    Accidental or intentional acute overdose of Ariphrenz alone was identified in adult patients after ingestion of doses up to 1,260 mg with no fatalities. The signs and symptoms are lethargy, increased blood pressure, somnolence, tachycardia and vomiting. Accidental overdose with aripiprazole alone (up to 195 mg) in children had no fatalities. The serious signs and symptoms include somnolence and transient loss of consciousness.

    Management of overdose: Management of overdose concentrates on supportive therapy, maintaining an adequate airway, oxygenation and ventilation, and management of symptoms. The possibility of multiple medicine involvement should be considered. Therefore, cardiovascular monitoring should be started immediately and should include continuous electrocardiographic monitoring to detect possible dysrhythmias. Following any confirmed or suspected overdose with Ariphrenz , close medical supervision and monitoring should continue until the patient recovers. Activated charcoal (50 g), administered one hour after Ariphrenz, decreases aripiprazole C max by about 41 % and AUC by about 51 %, suggesting that charcoal may be effective in the treatment of overdose management . Although there is no information on the effect of haemodialysis in treating an overdose with aripiprazole, haemodialysis is unlikely to be useful in overdose management since aripiprazole is highly bound to plasma proteins.

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