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A Study of Paliperidone Blood Concentrations in Patients With Schizophrenia After Administration of Paliperidone Palmitate

2014-08-27 03:14:12 | BioPortfolio

Summary

The purpose of this study is to evaluate the concentration of paliperidone in the blood after intramuscular injection in upper arm (deltoid muscle) or in the buttock (gluteal muscle) in patients with schizophrenia.

Description

This is a an open-label (all patients will know the name of the study drug that they are receiving), randomized (patients will selected by "chance" or like "flipping a coin" to administration of study drug by intramuscular [i.m.] injection into the gluteal [buttocks] or deltoid [upper arm] muscle of the body) study in patients with schizophrenia. A minimum of 40 patients (20 patients per group [1 group of patients to be administered study drug by injection in the gluteal muscle and 1 group of patients to be administered study drug by injection in the deltoid muscle]) will participate in this study, including at least 4 women in each group. The study will consist of a screening period that will occur within 21 days before the first study drug administration, an open-label treatment period during which patients will receive a total of 4 injections of study drug (paliperidone palmitate) either in the deltoid or gluteal muscle, and an end-of-study visit where final study evaluations will be performed. At the screening visit, if a patient has been treated with an antipsychotic medication before study entry, the medication may be continued during the study except for medications specified in the exclusion criteria for the study. If patients have not been previously treated with 1 of the following antipsychotic drugs: risperidone, paliperidone, or paliperidone palmitate, they will undergo a 4-day evaluation period where they will be given a 3 mg/day dose of an extended release (ER) formulation of paliperidone to evaluate their ability to tolerate study drug. Patients who meet all entry criteria for the study will be randomly assigned to 1 of 2 treatment groups in which they will receive 100 mg equivalent of paliperidone palmitate by i.m. injection in either the gluteal muscle or the deltoid muscle. Blood samples for pharmacokinetics (ie, to test the concentration of study drug in the blood) will be collected at specified times before and after each dose of study drug. A single blood sample may also be collected at any time during screening or before the first day of i.m. administration of study drug for patients who agree to participate in an optional part of the study called a pharmacogenomic evaluation which is an evaluation where genetic information obtained from the patient's blood is used to predict whether or not study drug will help make the patient well. During the study, the patient's psychiatric symptoms, severity of symptoms, and injection site reactions will be evaluated. The primary outcome measure in the study will be the determination of the concentration of paliperidone in the patient's blood before study drug administration at protocol-specified time points during the study. The patient's safety will be monitored throughout the study by performing physical examinations, vital signs measurements, clinical laboratory tests, electrocardiograms (ECGs), monitoring of extrapyramidal symptoms (ie, symptoms that can be associated with taking antipsychotic medications), injection site evaluations, and recording of adverse events (side effects). Each patient will receive a total of 4 paliperidone palmitate 100 mg equivalent injections in the gluteal or deltoid muscle on Day 1, 8, 36, and 64.

Study Design

Allocation: Randomized, Endpoint Classification: Pharmacokinetics Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Schizophrenia

Intervention

paliperidone palmitate 100 mg

Status

Completed

Source

Johnson & Johnson Pharmaceutical Research & Development, L.L.C.

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:14:12-0400

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A Study to Compare the Effectiveness and Safety of Flexibly Varied Doses of Paliperidone Palmitate and Risperidone in Treating Patients With Schizophrenia

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PubMed Articles [889 Associated PubMed Articles listed on BioPortfolio]

Paliperidone Palmitate Improves and Maintains Functioning in Asia-Pacific Patients with Schizophrenia.

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Hypersexuality Associated With Paliperidone: A Case Report.

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[This corrects the article DOI: 10.1371/journal.pone.0183475.].

Comparison of Paliperidone Palmitate and Risperidone Long-Acting Injection in Schizophrenic Patients: Results From a Multicenter Retrospective Cohort Study in France.

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Medical and Biotech [MESH] Definitions

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.

A chronic form of schizophrenia characterized primarily by the presence of persecutory or grandiose delusions, often associated with hallucination.

A type of schizophrenia characterized by abnormality of motor behavior which may involve particular forms of stupor, rigidity, excitement or inappropriate posture.

An obsolete concept, historically used for childhood mental disorders thought to be a form of schizophrenia.

A type of schizophrenia characterized by frequent incoherence; marked loosening of associations, or grossly disorganized behavior and flat or grossly inappropriate affect that does not meet the criteria for the catatonic type; associated features include extreme social withdrawal, grimacing, mannerisms, mirror gazing, inappropriate giggling, and other odd behavior. (Dorland, 27th ed)

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