Track topics on Twitter Track topics that are important to you
The primary purpose of the study is to show that treatment with an injectable formulation of risperidone is not less effective than and has a similar safety profile to risperidone tablets in patients with chronic schizophrenia.
Chronic schizophrenia is a longer-term condition that is characterized by a lack of drive, underactivity and slowness, and social withdrawal. As with the acute form of schizophrenia, delusions and hallucinations are common. Based on the severity and long-term nature of this disease, it is important that patients take their antipsychotic medication regularly. Long-acting injectable forms of antipsychotic drugs may eliminate the need for daily oral medication and increase a patient's compliance in taking their medication as prescribed by their physician. This is a randomized, double-blind, parallel-group study comparing the effectiveness and safety of an injectable formulation of risperidone (coated microspheres) to risperidone tablets in patients with chronic, stable schizophrenia. The study is composed of a screening visit, followed by two study phases: an 8-week run-in period and a 12-week double-blind period. In the run-in phase, patients discontinue from other antipsychotic drugs, begin receiving oral risperidone, and stay on the optimal oral risperidone dose that is determined for each patient for 4 weeks before starting the double-blind period. Patients are then randomized to either risperidone tablets or the injectable risperidone formulation at the dose level established during the last 4 weeks of run-in. For the next 12 weeks patients receive an injection of risperidone every 2 weeks plus daily oral doses of placebo or receive a placebo injection every 2 weeks plus daily oral doses of resperidone tablets. The primary measure of effectiveness is the change from baseline in the total score for the Positive and Negative Syndrome Scale for Schizophrenia (PANSS), a rating scale that measures the symptoms of schizophrenia. Additional efficacy testing includes the Clinical Global Impressions (CGI), a rating system used to evaluate the severity of clinical change in a patient with various diseases affecting the brain. Safety evaluations include the incidence of adverse events, results of clinical laboratory tests (hematology, biochemistry, urinalysis), measurements of vital signs and body weight, physical examination and electrocardiogram (ECG) findings, clinical examination of the injection area (buttocks), and the Extrapyramidal Symptoms Rating Scale (ESRS), a scale used to measure effects of antipsychotic medications on motor functions of the patient. The study hypothesis is that the injectable formulation of risperidone will not be less effective than oral risperidone tablets. The injectable formulation of risperidone will be considered less effective than oral risperidone if the improvement in total PANSS with injectable risperidone is more than 6 points worse than the improvement with oral risperidone.
Risperidone injections (25, 50 or 75milligrams [mg]) starting Day 1 of the double-blind phase, then every 2 weeks (total of 12 weeks) or 2, 4, or 6mg/day risperidone tablets, starting Day 1 of the run-in period and continuing for the rest of the study.
Allocation: Randomized, Control: Active Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Treatment
Risperidone Long acting injectable
Janssen Pharmaceutica N.V., Belgium
Published on BioPortfolio: 2014-08-27T03:47:50-0400
The purpose of this study is to examine the discontinuation rate of schizophrenia patients receiving multiple sequential 2 mL injections of long acting injectable risperidone (an atypical ...
The purpose of this study is to evaluate the long-term effectiveness and safety of a long-acting injectable formulation of risperidone (an antipsychotic medication) in patients with schizo...
The purpose of this study is to evaluate the effectiveness and safety of risperidone, formulated as a long-acting injectable drug, compared with risperidone tablets in the treatment of pat...
This study will determine the effectiveness of oral risperidone versus long-acting injectable risperidone in treating people with first-episode schizophrenia.
The purpose of the study is to evaluate the effect long-acting injectable risperidone and oral risperidone treatment has on the social functioning of patients with schizophrenia or schizoa...
Long-acting injectable (LAI) antipsychotics have the potential to improve adherence and outcomes for patients with serious mental illness but are underused. Watch this Webcast to learn how to identify...
Oral pre-exposure prophylaxis (PrEP) prevents HIV infection in men who have sex with men (MSM); however, adherence is an ongoing concern. Long-acting injectable PrEP is being tested in phase 3 trials ...
Providing informed, consent requires patients' Decision-Making Capacity for treatment. We evaluated the Decision Making Capacity of outpatients diagnosed with schizophrenia and schizoaffective disorde...
Nevirapine (NVP) is recommended by WHO as the antiretroviral treatment to prevent HIV passing from mother to child. However, the once-daily oral administration results in poor patient compliance, and ...
A long-acting injectable antipsychotic agent used for chronic schizophrenia.
One of the long-acting ANTIPSYCHOTIC AGENTS used for maintenance or long-term therapy of SCHIZOPHRENIA and other PSYCHOTIC DISORDERS.
A selective blocker of DOPAMINE D2 RECEPTORS and SEROTONIN 5-HT2 RECEPTORS that acts as an atypical antipsychotic agent. It has been shown to improve both positive and negative symptoms in the treatment of SCHIZOPHRENIA.
A benzisoxazole derivative and active metabolite of RISPERIDONE that functions as a DOPAMINE D2 RECEPTOR ANTAGONIST and SEROTONIN 5-HT2 RECEPTOR ANTAGONIST. It is an ANTIPSYCHOTIC AGENT used in the treatment of SCHIZOPHRENIA.
An insulin preparation that is designed to provide immediate and long term glycemic control in a single dosage. Biphasic insulin typically contains a mixture of REGULAR INSULIN or SHORT-ACTING INSULIN combined with a LONG-ACTING INSULIN.
Psychiatry is the study of mental disorders and their diagnosis, management and prevention. Conditions include schizophrenia, severe depression and panic disorders among others. There are pharmaceutical treatments as well as other therapies to help...
Schizophrenia is a common serious long-term mental health condition that affects 5 in 1000 in the UK. It causes a range of different psychological symptoms; hallucinations, delusions, muddled thoughts based on the hallucinations or delusions and ch...