Summary of medicine characteristics - REAGILA 1.5 MG HARD CAPSULES
This medicinal product is subject to additional monitoring. This will allow quick identification of new safety information. Healthcare professionals are asked to report any suspected adverse reactions. See section 4.8 for how to report adverse reactions.
1 NAME OF THE MEDICINAL PRODUCT
Reagila 1.5 mg hard capsules
2 QUALITATIVE AND QUANTITATIVE COMPOSITION
Each hard capsule contains cariprazine hydrochloride corresponding to 1.5 mg cariprazine.
For the full list of excipients, see section 6.1.
3 PHARMACEUTICAL FORM
Hard capsule
‘Size 4’ (approximately 14.3 mm in length) hard gelatin capsule with white opaque cap and white opaque body imprinted with “GR 1.5” on the capsule body with black ink. The capsules are filled with white to yellowish white powder mixture.
4 CLINICAL PARTICULARS
4.1 Therapeutic indications
Reagila is indicated for the treatment of schizophrenia in adult patients.
4.2 Posology and method of administration
Posology
The recommended starting dose of cariprazine is 1.5 mg once daily. Thereafter the dose can be increased slowly in 1.5 mg increments to a maximum dose of 6 mg/day, if needed. The lowest effective dose should be maintained according to the clinical judgement of the treating physician. Because of the long half-life of cariprazine and its active metabolites, changes in dose will not be fully reflected in plasma for several weeks. Patients should be monitored for adverse reactions and treatment response for several weeks after starting cariprazine and after each dosage change (see section 5.2).
Switching from other antipsychotics to cariprazine
When switching from another antipsychotic to cariprazine gradual cross-titration should be considered, with gradual discontinuation of the previous treatment while cariprazine treatment is initiated.
Switching to another antipsychotic from cariprazine
When switching to another antipsychotic from cariprazine, no gradual cross-titration is needed, the new antipsychotic should be initiated in its lowest dose while cariprazine is discontinued. It should be considered that plasma concentration of cariprazine and its active metabolites will decline by 50% in ~1 week (see section 5.2).
Special population
Renal impairment
No dose adjustment is required in patients with mild to moderate renal impairment (Creatinine Clearance (CrCl) > 30 mL/min and < 89 mL/min). Safety and efficacy of cariprazine have not been evaluated in patients with severe renal impairment (CrCl < 30 mL/min). Use of cariprazine is not recommended in patients with severe renal impairment (see section 5.2).
Hepatic impairment
No dose adjustment is required in patients with mild to moderate hepatic impairment (Child-Pugh score between 5–9). Safety and efficacy of cariprazine have not been evaluated in patients with severe hepatic impairment (Child-Pugh score between 10 and 15). Use of cariprazine is not recommended in patients with severe hepatic impairment (see section 5.2).
Elderly
Available data in elderly patients aged >65 years treated with cariprazine are not sufficient to determine whether or not they respond differently from younger patients (see section 5.2). Dose selection for an elderly patient should be more cautious.
Paediatric population
The safety and efficacy of cariprazine in children and adolescents aged less than 18 years have not been established. No data are available.
Method of administration
Reagila is for oral use, to be taken once daily at the same time of the day with or without food.
4.3 Contraindications
Hypersensitivity to the active substance or to any of the excipients listed in section 6.1.
Concomitant administration of strong or moderate CYP3A4 inhibitors (see section 4.5).
Concomitant administration of strong or moderate CYP3A4 inducers (see section 4.5).
4.4 Special warnings and precautions for use
Suicidal ideation and behaviour
The possibility of suicidality (suicidal ideation, suicide attempt and completed suicide) is inherent in psychotic illnesses and, generally, it is reported early after initiation or switch of antipsychotic therapy. Close supervision of high-risk patients should accompany antipsychotic therapy.
Akathisia, restlessness
Akathisia and restlessness is a frequently occurring adverse reaction of antipsychotics. Akathisia is a movement disorder characterized by a feeling of inner restlessness and a compelling need to be in constant motion, as well as by actions such as rocking while standing or sitting, lifting the feet as if marching on the spot, and crossing and uncrossing the legs while sitting. As cariprazine causes akathisia and restlessness, it should be used cautiously in patients who are prone to or already exhibit symptoms of akathisia. Akathisia develops early in treatment. Therefore close monitoring in the first phase of treatment is important. Prevention includes slow up-titration; treatment measures include slight down-titration of cariprazine or anti-EPS medication. The dose can be modified based on individual response and tolerability (see section 4.8).
Tardive dyskinesia
Tardive dyskinesia is a syndrome consisting of potentially irreversible, rhythmical, involuntary movements, predominantly of the tongue and/or face that can develop in patients treated with antipsychotics. If signs and symptoms of tardive dyskinesia appear in a patient treated with cariprazine, discontinuation should be considered.
Parkinson's disease
If prescribed to patients with Parkinson's disease, antipsychotic medicinal products may exacerbate the underlying disease and worsen symptoms of Parkinson’s disease. Physicians should, therefore, weigh the risks versus the benefits when prescribing cariprazine to patients with Parkinson's disease.
Ocular symptoms/cataract
In the preclinical studies of cariprazine lens opacity/cataract was detected in dogs (see sections 4.8 and 5.3). However, a causal relationship between lenticular changes / cataracts observed in human studies and cariprazine use has not been established. Nevertheless, patients who would develop symptoms potentially related to cataract should be advised to ophthalmologic examination and re-evaluated for treatment continuation.
Neuroleptic malignant syndrome (NMS)
A potentially fatal symptom complex referred to as neuroleptic malignant syndrome (NMS) has been reported in association with antipsychotic treatment. Clinical manifestations of NMS are hyperpyrexia, muscle rigidity, elevated serum creatine phosphokinase levels, altered mental status and evidence of autonomic instability (irregular pulse or blood pressure, tachycardia, diaphoresis and cardiac dysrhythmia). Additional signs may include myoglobinuria (rhabdomyolysis) and acute renal failure. If a patient develops signs and symptoms indicative of NMS, or presents with unexplained high fever without additional clinical manifestations of NMS, cariprazine must be discontinued immediately.
Seizures and convulsions
Cariprazine should be used cautiously in patients with history of seizures or with conditions that potentially lower the seizure threshold.
Elderly patients with dementia
Cariprazine has not been studied in elderly patients with dementia and is not recommended to treat elderly patients with dementia due to increased risk of overall mortality.
Risk of cerebrovascular accidents (CVA)
An approximately 3-fold increased risk of cerebrovascular adverse reactions has been seen in randomised placebo controlled clinical trials in the dementia population with some atypical antipsychotics. The mechanism for this increased risk is not known. An increased risk cannot be excluded for other antipsychotics or other patient populations. Cariprazine should be used with caution in patients with risk factors for stroke.
Cardiovascular disorders
Blood pressure changes
Cariprazine can cause orthostatic hypotension as well as hypertension (see section 4.8). Cariprazine should be used with caution in patients with known cardiovascular disease predisposing to blood pressure changes. Blood pressure should be monitored.
ECG changes
QT prolongation can develop in patients treated with antipsychotics.
With cariprazine no QT interval prolongation was detected compared to placebo in a clinical trial designed to assess QT prolongation (see section 5.1). In clinical trials, only a few, non-serious, QT-prolongations have been reported with cariprazine (see section 4.8). Therefore, cariprazine should be used cautiously in patients with known cardiovascular disease or in patients with a family history of QT prolongation and in patients treated with medicinal products that might cause QT prolongation (see section 5.1).
Venous thromboembolism (VTE)
Cases of venous thromboembolism have been reported with antipsychotic medicinal products. 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 cariprazine and preventive measures undertaken.
Hyperglycaemia and diabetes mellitus
Patients with an established diagnosis of diabetes mellitus or patients with risk factors for diabetes mellitus (e.g. obesity, family history of diabetes) who are starting treatment with atypical antipsychotics should be monitored for serum glucose levels. In clinical trials, glucose-related adverse reactions have been reported with cariprazine (see section 5.1).
Women of childbearing potential
Women of childbearing potential must use highly effective contraception while taking cariprazine and at least for 10 weeks after stopping treatment (see sections 4.5 and 4.6). Women using systemically acting hormonal contraceptives should add a second barrier method.
Weight change
Significant weight gain has been observed with the use of cariprazine. Patients should have their weight monitored regularly (see section 4.8).
Excipients
Reagila 3 mg, 4.5 mg and 6 mg hard capsules contain Allura red AC (E 129), which may cause allergic reactions.
4.5 Interaction with other medicinal products and other forms of interaction
Potential for other medicinal products to affect cariprazine
Metabolism of cariprazine and its major active metabolites, desmethyl cariprazine (DCAR) and didesmethyl cariprazine (DDCAR), is mediated mainly by CYP3A4 with a minor contribution of CYP2D6.
CYP3A4 inhibitors
Ketoconazole, a strong CYP3A4 inhibitor, caused two fold increase in plasma exposure for total cariprazine (sum of cariprazine and its active metabolites) during short-term (4 days) co-administration, either if unbound or unbound+bound moieties considered.
Due to the long half-life of the active moieties of cariprazine a further increase in plasma exposure of total cariprazine can be expected during longer co-administration. Therefore, co-administration of cariprazine with strong or moderate inhibitors of CYP3A4 (e.g. boceprevir, clarithromycin, cobicistat, indinavir, itraconazole, ketoconazole, nefazodone, nelfinavir, posaconazole, ritonavir, saquinavir, telaprevir, telithromycin, voriconazole, diltiazem, erythromycin, fluconazole verapamil) is contraindicated (see section 4.3). Consumption of grapefruit juice should be avoided.
CYP3A4 inducers
Co-administration of cariprazine with strong and moderate inducers of CYP3A4 may result in a significant decrease in total cariprazine exposure, therefore the coadministration of cariprazine and strong or moderate CYP3A4 inducers (e.g. carbamazepine, phenobarbital, phenytoin, rifampicin, St. John’s wort (Hypericum perforatum), bosentan, efavirenz, etravirine, modafinil, nafcillin) is contraindicated (see section 4.3).
CYP2D6 inhibitors
CYP2D6 mediated pathway plays a minor role in the metabolism of cariprazine, the major pathway is via CYP3A4 (see section 5.2). Therefore CYP2D6 inhibitors are unlikely to have a clinically relevant effect on cariprazine metabolism.
Potential for cariprazine to affect other medicinal products
P-glycoprotein (P-gp) substrates
Cariprazine is a P-gp inhibitor in vitro at its theoretical maximum intestinal concentration. The clinical consequences of this effect is not fully understood, however the use of P-gp substrates with narrow therapeutic index such as dabigatran and digoxin could require extra monitoring and dose adjustment.
Hormonal contraceptives
It is currently unknown whether cariprazine may reduce the effectiveness of systemically acting hormonal contraceptives, and therefore women using systemically acting hormonal contraceptives should add a second barrier method.
Pharmacodynamic interactions
Given the primary central nervous system effects of cariprazine, Reagila should be used with caution in combination with other centrally acting medicinal products and alcohol.
4.6 Fertility, pregnancy and lactation
Women of childbearing potential/contraception
Women of childbearing potential must be advised to avoid pregnancy while on Reagila. Female patients of child-bearing potential must use highly effective contraceptive methods during treatment and for at least 10 weeks following the last dose of Reagila. It is currently unknown if cariprazine may reduce the effectiveness of systemically acting hormonal contraceptives and therefore women using systemically acting hormonal contraceptives should add a barrier method (see section 4.5).
Pregnancy
There are no or limited amount of data from the use of cariprazine in pregnant women.
Studies in animals have shown reproductive toxicity including developmental malformations in rats (see section 5.3).
Reagila is not recommended during pregnancy and in women of childbearing potential not using effective contraception. After discontinuation of cariprazine treatment contraception should be used for at least 10 weeks due to the slow elimination of active moieties.
Neonates exposed to antipsychotics (including cariprazine) 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. 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. Consequently, newborns should be monitored carefully.
Breast-feeding
It is unknown whether cariprazine or its major active metabolites are excreted in human milk. Cariprazine and its metabolites are excreted in milk of rats during lactation (see section 5.3). A risk to the newborns/infants cannot be excluded. Breastfeeding should be discontinued during treatment with cariprazine.
Fertility
The effect of cariprazine on human fertility has not been evaluated. In rat studies lower female fertility and conception indices were observed (see section 5.3).
4.7 Effects on ability to drive and use machines
Cariprazine has minor or moderate influence on the ability to drive and use machines. Patients should be cautioned about operating hazardous machinery, including motor vehicles, until they are reasonably certain that therapy with Reagila does not affect them adversely.
4.8 Undesirable effects
Summary of the safety profile
The most frequently reported ADRs with cariprazine in the dose range (1.5–6 mg) were akathisia (19%) and parkinsonism (17.5%). Most events were mild to moderate in severity.
Tabulated list of adverse reactions
Adverse drug reactions (ADRs) based upon pooled data from cariprazine schizophrenia studies are shown by system organ class and by preferred term.
Adverse reactions are ranked by frequency, the most frequent first, using the following convention: very common (>1/10); common (>1/100 to <1/10); uncommon (>1/1,000 to <1/100); rare (>1/10,000 to <1/1,000) very rare (<1/10,000), not known (cannot be estimated from the available data). Within each frequency grouping, adverse reactions are presented in order of decreasing seriousness.
Adverse drug reactions occurring in patients with schizophrenia
MedDRA System Organ Class | Very common (>1/10) | Common (>1/100 to <1/10) | Uncommon (>1/1,000 to <1/100) | Rare (>1/10,000 to <1/1,000) | Frequency not known |
Blood and lymphatic system disorders | Anaemia Eosinophilia | Neutropenia | |||
Immune system disorders | Hypersensiti vity | ||||
Endocrine disorders | Blood thyroid stimulating hormone | Hypothyroidi sm |
decreased | |||||
Metabolism and nutrition disorders | Weight increased Decreased appetite Increased appetite Dyslipidaemi a | Blood sodium abnormal Blood glucose increased Diabetes mellitus | |||
Psychiatric disorders | Sleep disordersl Anxiety | Suicidal behaviour Delirium Depression Libido decreased Libido increased Erectile dysfunction | |||
Nervous system disorders | Akathisia2 Parkinsonism 3 | Sedation Dizziness 4 4 4 Dystonia Other extrapyramid al diseases and abnormal movement disorders5 | Lethargy Dysaesthesia Dyskinesia6 Tardive dyskinesia | Seizures/ Convulsion Amnesia Aphasia | Neuroleptic malignant syndrome |
Eye disorders | Vision blurred | Eye irritation Intraocular pressure increased Accommodat ion disorder Visual acuity reduced | Photophobia Cataract | ||
Ear and labyrinth disorders | Vertigo | ||||
Cardiac disorders | Tachyarrhyt mia | Cardiac conduction disorders Bradyarrhyt mia Electrocardio gram QT prolonged Electrocardio gram T wave abnormal |
Vascular disorders | Hypertension | Hypotension | |||
Respiratory, thoracic and mediastinal disorders | Hiccups | ||||
Gastrointest inal disorders | Nausea Constipation Vomiting | Gastrooesoph ageal reflux disease | Dysphagia | ||
Hepatobiliar y disorders | Hepatic enzymes increased | Blood bilirubin increased | Toxic hepatitis | ||
Skin and subcutaneou s tissue disorders | Pruritus Rash | ||||
Musculoskel etal and connective tissue disorders | Blood creatine phosphokinas e increased | Rhabdomyol ysis | |||
Renal and urinary disorders | Dysuria Pollakisuria | ||||
Pregnancy, puerperium and perinatal conditions | Drug withdrawal syndrome neonatal (see section 4.6) | ||||
General disorders and administrati on site conditions | Fatigue | Thirst |
1Sleep disorders: Insomnia, Abnormal dreams/nightmare, Circadian rhythm sleep disorder, Dyssomnia, Hypersomnia, Initial insomnia, Middle insomnia, Nightmare, Sleep disorder, Somnambulism, Terminal insomnia
2Akathisia: Akathisia, Psychomotor hyperactivity, Restlessness
3Parkinsonism: Akinesia, Bradykinesia, Bradyphrenia, Cogwheel rigidity, Extrapyramidal disorder, Gait disturbance, Hypokinesia, Joint stiffness, Tremor, Masked facies, Muscle rigidity, Musculoskeletal stiffness, Nuchal rigidity, Parkinsonism
4Dystonia: Blepharospasm, Dystonia, Muscle tightness, Oromandibular dystonia, Torticollis, Trismus 5Other extrapyramidal diseases and abnormal movement disorders: Balance disorder, Bruxism, Drooling, Dysarthria, Gait deviation, Glabellar reflex abnormal, Hyporeflexia, Movement disorder, Restless legs syndrome, Salivary hypersecretion, Tongue movement disturbance
6Dyskinesia: Choreoathetosis, Dyskinesia, Grimacing, Oculogyric crisis, Protrusion tongue
Description of selected adverse reactions
Lens opacity/Cataract
Development of cataracts was observed in cariprazine non-clinical studies (see section 5.3). Therefore, cataract formation was closely monitored with slit lamp examinations in the clinical studies and patients with existing cataracts were excluded. During the schizophrenia clinical development program of cariprazine, few cataract cases were reported, characterized with minor lens opacities with no visual impairment (13/3192; 0.4%). Some of these patients had confounding factors. The most commonly reported ocular adverse event was blurred vision (placebo: 1/683; 0.1%, cariprazine: 22/2048; 1.1%).
Extrapyramidal symptoms (EPS)
In the short term studies the incidence of EPS was observed in 27%; 11.5%; 30.7% and 15.1% in patients treated with cariprazine, placebo, risperidone and aripiprazole respectively. Akathisia was reported in 13.6%; 5.1%; 9.3% and 9.9% in patients treated with cariprazine, placebo, risperidone and aripiprazole respectively.
Parkinsonism was experienced in 13.6%; 5.7%; 22.1% and 5.3% in patients treated with cariprazine, placebo, risperidone and aripiprazole respectively. Dystonia was observed in 1.8%; 0.2%; 3.6% and 0.7% in patients on cariprazine, placebo, risperidone and aripiprazole, respectively.
In the placebo-controlled part of the long-term maintenance of effect study EPS was 13.7% in the cariprazine group compared to 3.0% in the placebo treated patients. Akathisia was reported in 3.9% in patients treated with cariprazine, versus 2.0% in the placebo group. Parkinsonism was experienced in 7.8% and 1.0% in cariprazine and placebo group respectively.
In the negative symptom study EPS was reported in 14.3% in the cariprazine group and 11.7% in the risperidone treated patients. Akathisia was reported in 10.0% in patients treated with cariprazine and 5.2% in the risperidone group. Parkinsonism was experienced in 5.2% and 7.4% in cariprazine and risperidone treated patients respectively. Most EPS cases were mild to moderate in intensity and could be handled with common anti-EPS medicinal products. The rate of discontinuation due to EPS related ADRs was low.
Venous thromboembolism (VTE)
Cases of venous thromboembolism, including cases of pulmonary embolism and cases of deep vein thrombosis have been reported with antipsychotics – Frequency unknown.
Elevated liver transaminases
Elevated liver transaminases (ALT, AST) are frequently observed with antipsychotic treatment. In the cariprazine clinical studies the incidence of ALT, AST elevation ADRs occurred in 2.2% of cariprazine-, 1.6% of risperidone- and 0.4% of placebo-treated patients. None of the cariprazine-treated patients had any liver damage.
Weight changes
In the short term studies, there were slightly greater mean increases in body weight in the cariprazine group compared to the placebo group; 1 kg and 0.3 kg, respectively. In the long term maintenance of effect study, there was no clinically relevant difference in change of body weight from baseline to end of treatment (1.1 kg for cariprazine and 0.9 kg for placebo). In the open-label phase of the study during 20 weeks cariprazine treatment 9.0% of patients developed potentially clinically significant (PCS) weight gain (defined as increase > 7%) while during the doubleblind phase, 9.8 % of the patients who continued with cariprazine treatment had PCS weight gain versus 7.1% of the patients who were randomized to placebo after the 20 week open-label cariprazine treatment. In the negative symptom study, the mean change of body weight was –0.3 kg for cariprazine and +0.6 kg for risperidone and PCS weight gain was observed in 6% of the cariprazine group while 7.4% of the risperidone group.
QT- prolongation
With cariprazine no QT interval prolongation was detected compared to placebo in a clinical trial designed to assess QT prolongation (see section 5.1). In other clinical trials, only a few, non-serious, QT-prolongations have been reported with cariprazine. During the long-term, open-label treatment period in, 3 patients (0.4%) had QTcB > 500 msec, one of whom also had QTcF > 500 msec. A > 60 msec increase from baseline was observed in 7 patients (1%) for QTcB and in 2 patients (0.3%) for QTcF. In the long-term , maintenance of effect study, during the open-label phase, > 60 msec increase of from baseline was observed in 12 patients (1.6%) for QTcB and in 4 patients (0.5%) for QTcF. During the double-blind treatment period, > 60 msec increases from baseline in QTcB were observed in 3 cariprazine-treated patients (3.1%) and 2 placebo-treated patients (2%).
Reporting of suspected adverse reactions
Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via Yellow Card Scheme, Website: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.
4.9 Overdose
5 PHARMACOLOGICAL PROPERTIES
5.1 Pharmacodynamic properties
Pharmacotherapeutic group: Psycholeptics, other antipsychotics, ATC code: N05AX15
Mechanism of action
The mechanism of action of cariprazine is not fully known. However the therapeutic effect of cariprazine may be mediated through a combination of partial agonist activity at dopamine D3, D2 (Ki values of 0.085–0.3 nM versus 0.49–0.71 nM respectively) and serotonin 5-HT1A receptors (Ki values of 1.4–2.6 nM), and antagonist activity at serotonin 5-HT2B, 5-HT2A and histamine H1 receptors (Ki values of 0.58–1.1 nM, 18.8 nM and 23.3 nM, respectively). Cariprazine has low affinity for serotonin 5-HT2C and adrenergic <x1 receptors (Ki values of 134 nM and 155 nM, respectively). Cariprazine has no appreciable affinity for cholinergic muscarinic receptors (IC50 > 1000 nM). The two major active metabolites, desmethyl cariprazine and didesmethyl cariprazine have a similar in vitro receptor binding and functional activity profile as the parent drug.
Pharmacodynamic effects
In vivo non-clinical studies demonstrated that cariprazine occupies D3 receptors to a similar extent as D2 receptors at pharmacologically effective doses. There was a dosedependent occupancy of brain dopamine D3 and D2 receptors (with preferential occupancy in regions with higher D3 expression) in patients with schizophrenia within the therapeutic dose range of cariprazine for 15 days.
The effects of cariprazine on the QT interval were evaluated in patients with schizophrenia or schizoaffective disorder. Holter monitor-derived electrocardiographic assessments were obtained in 129 patients over a twelve hour period at baseline and steady state. No QT interval prolongation was detected following supratherapeutic doses (9 mg/day or 18 mg/day). No patients treated with cariprazine experienced QTc increases > 60 msec from baseline, nor did any patient experience a QTc of > 500 msec in the study.
Clinical efficacy
Efficacy with short-term use
The efficacy of cariprazine for the treatment of acute schizophrenia was studied in three multi-center, multinational, randomized, double-blind, placebo-controlled 6-week trials including 1,754 patients with the age of 18 to 60 years. The primary endpoint was change from baseline to week 6 in the Positive and Negative Syndrome Scale (PANSS) total score and the secondary endpoint was change from baseline to week 6 in the Clinical Global Impressions-Severity (CGI-S) score in all acute schizophrenia studies. In a multinational placebo controlled study using fixed doses of 1.5 mg, 3.0 mg and 4.5 mg cariprazine and 4.0 mg risperidone for assay sensitivity, all cariprazine doses and the active-control showed statistically significant improvement in both primary as well as secondary endpoint compared to placebo. In another multinational placebo controlled study using fixed doses of 3.0 mg, and 6.0 mg cariprazine and 10 mg aripiprazole for assay sensitivity, both cariprazine doses and the active-control showed statistically significant improvement in both primary as well as secondary endpoint compared to placebo. In a third multinational placebo controlled study using fixed/flexible doses of 3.0–6.0 mg and 6.0–9.0 mg cariprazine, both cariprazine doses groups showed statistically significant improvement in both primary as well as secondary endpoint compared to placebo.
Results for the primary outcome parameter are summarized in Table 1 below. Results for the secondary outcome parameter (CGI) and additional endpoints were supportive of the primary endpoint.
Table 1. Change From Baseline to Week 6 in the PANSS Total Score in
Studies of Acute Exacerbations of Schizophrenia—ITT Population
Baseline Mean ± SD | Change LS mean (SE) | Treatment difference versus placebo (95% CI) | P-value | |
PANSS total (MMRM) | ||||
RGH-MD-16 (n=711) | ||||
Placebo | 97.3 ± 9.22 | –13.29 (1.82) | — | — |
Cariprazine 1.5 mg/day | 97.1 ± 9.13 | –21.27 (1.77) | –7.97 (-12.94, –3.01) | 0.0017 |
Cariprazine 3 mg/day | 97.2 ± 8.66 | –21.45 (1.74) | –8.16 (-13.09, –3.22) | 0.0013 |
Cariprazine 4.5 mg/day | 96.7 ± 9.01 | –23.77 (1.74) | –10.48 (-15.41, –5.55) | < 0.0001 |
Risperidone 4 mg/day | 98.1 ± 9.50 | –29.27 (1.74) | –15.98 (-20.91, –11.04) | < 0.0001* |
RGH-MD-04 (n=604) | ||||
Placebo | 96.5 ± 9.1 | –14.3 (1.5) | — | — |
Cariprazine 3 mg/day | 96.1 ± 8.7 | –20.2 (1.5) | –6.0 (-10.1, –1.9) | 0.0044 |
Cariprazine 6 mg/day | 95.7 ± 9.4 | –23.0 (1.5) | –8.8 (-12.9, –4.7) | < 0.0001 |
Aripiprazole 10 mg/day | 95.6 ± 9.0 | –21.2 (1.4) | –7.0 (-11.0, –2.9) | 0.0008* |
RGH-MD-05 (n=439) | ||||
Placebo | 96.6 ± 9.3 | –16.0 (1.6) | — | — |
Cariprazine 3 to 6 mg/day | 96.3 ± 9.3 | –22.8 (1.6) | –6.8 (-11.3, –2.4) | 0.0029 |
Cariprazine 6 to 9 mg/day | 96.3 ± 9.0 | –25.9 (1.7) | –9.9 (-14.5, –5.3) | < 0.0001 |
CI = confidence interval; ITT = intent to treat; LS mean = least squares mean; PANSS = Positive and Negative Syndrome Scale.
*compared to placebo
Efficacy with long-term use
The efficacy of cariprazine for maintaining antipsychotic effect was investigated in a randomized-withdrawal, long-term clinical study. Totally, 751 patients with acute symptoms of schizophrenia received cariprazine 3–9 mg/day for 20 weeks, of whom 337 received cariprazine in the dose-range of 3 or 6 mg/day. Stabilized patients were then randomised to receive fixed doses of 3 or 6 mg cariprazine (n=51) or placebo (n=51) in a double-blind manner for up to 72 weeks. The primary outcome of the study was time to relapse. By the end of the trial 49.0% of placebo-treated patients versus 21.6% of cariprazine-treated patients had a relapse of schizophrenic symptoms. Time to relapse (92 vs. 326 days-based on the 25th percentile) was therefore significantly longer in the cariprazine group than in the placebo group (p=0.009).
Efficacy in predominantly negative symptoms of schizophrenia
The efficacy of cariprazine for the treatment of predominantly negative symptoms of schizophrenia was investigated in a 26-week, multi-centre, double-blind, and active-controlled clinical trial. Cariprazine (dose range 3–6 mg, target dose 4.5 mg) was investigated compared to risperidone (dose range 3–6 mg, target dose 4 mg) in patients with persistent, predominant negative symptoms of schizophrenia (n=461). 86% of patients were less than 55 years old, 54% of them were male.
Persistent predominant negative symptoms were defined as symptoms lasting for a period of at least 6 months with high level of negative symptoms and low level of positive symptoms [(PANSS factor score for negative symptoms > 24, a score of > 4 on a minimum2 of the 3 PANSS items (N1: flat affect, N4: avolition, and N6: poverty of speech) and PANSS factor score for positive symptoms < 19]. Patients with secondary negative symptoms, such as moderate to severe depressive symptoms and clinically relevant parkinsonism (EPS) were excluded.
Both cariprazine- and risperidone-treated patient groups have shown statistically significant improvement in the change from baseline for the primary efficacy parameter, PANSS factor score for negative symptoms (PANSS-FSNS) (p< 0.001). However, a statistically significant difference (p=0.002) in favour of cariprazine over risperidone was observed from Week 14 onward (Table 2). Both cariprazine- and risperidone-treated patient groups have shown statistically significant improvement in the change from baseline for the secondary efficacy parameter, Personal and Social Performance (PSP) total score (p< 0.001). However, a statistically significant difference (p< 0.001) in favour of cariprazine over risperidone was observed from Week 10 onward (Table 2).
Differences on the Clinical Global Impression Severity (p=0.005) and Improvement (p<0.001) scales, as well as PANSS-FSNS response rates (PANSS FSNS > 30% improvement at Week 26; p= 0.003) were supportive of findings on the primary and secondary efficacy parameters.
Table 2 Summary of results in study RGH-188–005
Efficacy parameter | Cariprazine LS mean | Risperidone LS mean | Estimated Treatment Difference | 95%CI | p-value |
PANSS-FSNS at Baseline | 27.8 | 27.5 | – | – | – |
PANSS-FSNS at Week 26 | 18.5 | 19.6 | – | – | – |
PANSS-FSNS CfB to Week 26 | –8.9 | –7.4 | –1.5 | –2,4; –0.5 | 0.002 |
Total PSP at Baseline | 48.8 | 48.2 | – | – | – |
Total PSP at Week 26 | 64.0 | 59.7 | – | – | – |
Total PSP CfB to Week 26 | 14.3 | 9.7 | 4.6 | 2.7; 6.6 | <0.001 |
CfB= change from baseline
Paediatric population
The European Medicines Agency has deferred the obligation to submit the results of studies with cariprazine in paediatric population. See section 4.2 for information on paediatric use.
5.2 Pharmacokinetic properties
6 PHARMACEUTICAL PARTICULARS
6.1 List of excipients
Capsule contents
Pregelatinized (maize) starch
Magnesium stearate
Capsule shell (1.5 mg capsule)
Titanium dioxide (E 171) Gelatin
Printing ink (black)
Shellac
Black iron oxide (E 172)
Propylene glycol
Potassium hydroxide
6.2 Incompatibilities
Not applicable.
6.3 Shelf life
5 years
6.4 Special precautions for storage
Keep the blister in the outer carton in order to protect from light.
This medicinal product does not require any special temperature storage conditions.
6.5 Nature and contents of container
Transparent hard PVC/PE/PVDC blister heat-sealed with hard aluminium foil backing packed in folded carton box.
Cartons contain 7, 14, 21, 28, 30, 49, 56, 60, 84, 90 or 98 hard capsules.
Not all pack sizes may be marketed.
6.6 Special precautions for disposal
6.6 Special precautions for disposalAny unused medicinal product or waste material should be disposed of in accordance with local requirements.
7 MARKETING AUTHORISATION HOLDER
Gedeon Richter Plc.
Gyomroi ut 19–21.
1103 Budapest
Hungary
8 MARKETING AUTHORISATION NUMBER(S)
PLGB 04854/0173
9 DATE OF FIRST AUTHORISATION/RENEWAL OF THE AUTHORISATION
01/01/2021