Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical
trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates
observed in practice.
The safety of SECUADO was evaluated in a total of 315 adult patients diagnosed with schizophrenia who were exposed to SECUADO for up to 6 weeks in a placebo-controlled trial.
Adverse Reactions Leading to Discontinuation of Treatment
A total of 4.9% (10/204) patients treated with SECUADO 3.8 mg/24 hours, 7.8% (16/204) patients treated with SECUADO 7.6 mg/24 hours, and 6.8% (14/206) patients on placebo discontinued due to adverse reactions in the placebo-controlled trial. The adverse reaction that most commonly led to discontinuation among SECUADO-treated patients in this trial was akathisia, which led to discontinuation in no (0/204) patients treated with SECUADO 3.8 mg/24 hours, 1.5% (3/204) patients treated with SECUADO 7.6 mg/24 hours, and 0.5% (1/206) patients on placebo.
Commonly Observed Adverse Reactions
The most common adverse reactions (≥5% and at least twice the rate of placebo) reported in adult patients with
schizophrenia treated with SECUADO in the placebo-controlled trial were extrapyramidal disorder, application site reaction and
weight gain.
Adverse Reactions Occurring at an Incidence of 2% or More in SECUADO-Treated Patients.
Adverse reactions associated with the use of SECUADO (incidence of ≥2%, rounded to the nearest percent, and SECUADO
incidence greater than placebo) that occurred during the placebo-controlled trial are shown in
Table 5.
Table 5: Adverse Reactions in ≥2% of Patients in Any SECUADO Dose Group and Which Occurred at Greater Incidence Than in the Placebo Group in 6-Week Schizophrenia Trials* The following terms were combined:
Application site reactions includes application site dermatitis, discoloration, discomfort, dryness, edema, erythema, exfoliation, induration, irritation, pain, papules, pruritis, and reaction.
Blood glucose increased includes blood glucose increased, blood insulin increased, glycosylated hemoglobin increased, hyperglycemia, Type 2 diabetes mellitus, diabetes mellitus, and hyperinsulinemia.
Hepatic enzyme increased includes hepatic enzyme increased, alanine aminotransferase increased, aspartate aminotransferase increased, and gamma-glutamyltransferase increased.
Extrapyramidal symptoms includes dyskinesia, dystonia, extrapyramidal disorder, parkinsonism. tardive dyskinesia, muscle spasm, and musculoskeletal stiffness.
Somnolence includes somnolence, sedation, lethargy, and hypersomnia.
Hypertension includes hypertension, blood pressure increased, diastolic hypertension, and hypertensive crisis. |
System Organ Class/ Preferred Term | Placebo N = 206 (%) | SECUADO |
|---|
3.8 mg/24 hours N = 204 (%) | 7.6 mg/24 hours N = 204 (%) |
|---|
| Gastrointestinal disorders |
| Constipation | 4 | 5 | 4 |
| Dyspepsia | 1 | 1 | 3 |
| Diarrhea | 1 | 3 | 1 |
| General Disorders |
| Application Site Reactions* | 4 | 15 | 14 |
| Investigations |
| Blood glucose increased* | 1 | 3 | 1 |
| Weight Increased | 2 | 4 | 6 |
| Hepatic enzyme increased* | 0 | 2 | 2 |
| Infections and Infestations |
| Nasopharyngitis | 2 | 3 | 1 |
| Upper respiratory tract infection | 2 | 3 | 1 |
| Metabolism and nutrition disorders |
| Increased appetite | 0 | 3 | 1 |
| Nervous System Disorders |
| Headache | 6 | 9 | 9 |
| Extrapyramidal symptoms* | 2 | 8 | 13 |
| Akathisia | 2 | 4 | 4 |
| Somnolence* | 1 | 4 | 3 |
| Dystonia | 0 | 1 | 3 |
| Vascular Disorders |
| Hypertension* | 1 | 2 | 2 |
Dose-Related Adverse Reactions: In the placebo-controlled schizophrenia trial, the incidence of an extrapyramidal disorder and weight increased appear to be dose-related (see Table 5).
Dystonia:
Symptoms of dystonia, prolonged abnormal contractions of muscle groups, may occur in susceptible individuals during the first few days of treatment. Dystonic symptoms include: spasm of the neck muscles, sometimes progressing to tightness of the throat, swallowing difficulty, difficulty breathing, and/or protrusion of the tongue. While these symptoms can occur at low doses, they occur more frequently and with greater severity with high potency and at higher doses of first generation antipsychotic drugs. An elevated risk of acute dystonia is observed in males and younger age groups [Clinical Pharmacology (12.3)].
Extrapyramidal Symptoms:
In the short-term, placebo-controlled schizophrenia adult trial, data were objectively collected on the Simpson Angus Rating Scale for extrapyramidal symptoms (EPS), the Barnes Akathisia Scale (for akathisia) and the Assessments of Involuntary Movement Scales (for dyskinesias). The mean change from baseline for the SECUADO 3.8 mg/24 hours or 7.6 mg/24 hours treated group was similar to placebo in each of the rating scale scores.
In the short-term, placebo-controlled schizophrenia adult trial, the incidence of reported extrapyramidal disorder events, excluding events related to akathisia, was 7.8% for patients treated with SECUADO 3.8 mg/24 hours, 12.8% for patients treated with SECUADO 7.6 mg/24 hours SECUADO and 2.4% for placebo-treated patients; and the incidence of akathisia-related events was 3.9% for patients treated with SECUADO 3.8 mg/24 hours, 4.4% for patients treated with SECUADO 7.6 mg/24 hours and 2.4% for placebo-treated patients.
Laboratory Test Abnormalities:
Transaminases: Transient elevations in serum transaminases (primarily ALT) were more common in SECUADO-treated patients. The mean increase in ALT levels for SECUADO-treated patients was 6.0 units/L and 3.8 units/L for the SECUADO 3.8 mg/24 hours and 7.6 mg/24 hours treated groups, respectively, compared to a decrease of 1.1 units/L for placebo-treated patients. The proportion of patients with ALT elevations ≥3 times upper limit of normal (ULN) (at any time) was 1.6% and 3.1% for patients treated with SECUADO 3.8 mg/24 hours and 7.6 mg/24 hours, respectively, and 0% for placebo-treated patients.
In a 52-week, double-blind, comparator-controlled trial that included primarily adult patients with schizophrenia, the mean increase from baseline of ALT was 1.7 units/L for sublingual asenapine.
Prolactin: The proportion of patients with prolactin elevations ≥4 times ULN (at Endpoint) were 0.0% and 1.3% for patients treated with SECUADO 3.8 mg/24 hours and 7.6 mg/24 hours, respectively, as compared to 2.4% for placebo-treated patients in the short-term placebo-controlled trial.
In a long-term (52-week), double-blind, comparator-controlled adult trial that included primarily patients with schizophrenia, the mean decrease in prolactin from baseline for sublingual asenapine-treated patients was 26.9 ng/mL.
Creatine Kinase (CK): The proportion of adult patients with CK elevations ≥3 times ULN at any time were 1.6% and 2.1% for patients treated with SECUADO 3.8 mg/24 hours and 7.6 mg/24 hours, respectively, as compared to 1.5% for placebo-treated patients in the short-term, placebo-controlled trial. The clinical relevance of this finding is unknown.
Other Adverse Reactions Observed During the Premarketing Evaluation of SECUADO
Other adverse reactions (<2% frequency) within the 6-week placebo-controlled trial in patients with schizophrenia are listed below. The reactions listed are those that could be of clinical importance, as well as reactions that are plausibly drug-related on pharmacologic or other grounds. Reactions that appear elsewhere in the SECUADO label are not included.
Gastrointestinal disorders: vomiting, dry mouth
General disorders and administration site conditions: asthenia
Musculoskeletal and connective tissue disorders: myalgia
Other Adverse Reactions Reported in Clinical Trials with Sublingual Asenapine
Following is a list of MedDRA terms that reflect adverse reactions reported by patients treated with sublingual asenapine at multiple doses of ≥5 mg twice daily during any phase of a trial within the database of adult patients. The reactions listed are those that could be of clinical importance, as well as reactions that are plausibly drug-related on pharmacologic or other grounds. Reactions already listed for adult patients in other parts of Adverse Reactions (6), or those considered in Contraindications (4), Warnings and Precautions (5) or Overdosage (10) are not included. Reactions are further categorized by MedDRA system organ class and listed in order of decreasing frequency according to the following definitions: those occurring in at least 1/100 patients (frequent) (only those not already listed in the tabulated results from placebo-controlled trials appear in this listing); those occurring in 1/100 to 1/1000 patients (infrequent); and those occurring in fewer than 1/1000 patients (rare).
Blood and lymphatic disorders: infrequent: anemia; rare: thrombocytopenia
Cardiac disorders: infrequent: temporary bundle branch block
Eye disorders: infrequent: accommodation disorder
Gastrointestinal disorders: infrequent: swollen tongue
General disorders: rare: idiosyncratic drug reaction
Investigations: infrequent: hyponatremia
Nervous system disorders: infrequent: dysarthria