Paliperidone Palmitate Flexible Dosing in Schizophrenia — PALMFlexS  

Schizophrenia Clinical Trial

Official title: A 6-month, Open Label, Prospective, Multicenter, International, Exploratory Study of a Transition to Flexibly Dosed Paliperidone Palmitate in Patients With Schizophrenia Previously Unsuccessfully Treated With Oral or Long-acting Injectable Antipsychotics

Status Completed

Clinical Trial Summary

This study explores the tolerability, safety and efficacy (i.e. how well the drug works) of flexibly dosed paliperidone palmitate in the treatment of schizophrenia in patients previously unsuccessfully treated with other oral or long-acting injectable (LAI) (i.e. with a long duration of action) antipsychotics.

Clinical Trial Description

This study explores the tolerability, safety and treatment response of flexibly dosed paliperidone palmitate in approximately 1,000 patients with schizophrenia previously unsuccessfully treated with an oral or LAI antipsychotic medication. Non-acute and acute patients will be involved in the study. This study consists of a screening phase, a 6-month core treatment phase, and an optional extension phase. A transition period of preferably a maximum of 4 weeks will be allowed for the previous oral antipsychotic. When switching patients from previous LAI antipsychotics, paliperidone palmitate will be initiated in place of the next scheduled injection. Patients without source documentation of previous risperidone or paliperidone exposure must undergo oral tolerability testing with paliperidone ER (3 mg/day) for the 2 days prior to Baseline Visit. Patients who successfully complete the 6-month core treatment phase and would like to continue treatment with paliperidone palmitate may be enrolled in an optional extension phase until paliperidone palmitate is available in their respective country or until a maximum duration of 12 months after the last subject has completed the 6-month core treatment phase, whichever comes first. Patients will receive, without cost, paliperidone palmitate. Patients entering this optional extension phase, will receive once monthly injections with paliperidone palmitate. The recommended maintenance dose for these monthly injections is 75 mg eq. once monthly but flexible dosing in the range of 50 to 150 mg eq. once monthly will be allowed. The doctor may flexibly increase or decrease the dose preferably by one dosing level (within the range of 50 to 150 mg eq.) according to patients' clinical needs. During the extension phase, two types of visits can be distinguished: 'assessment visits' and 'treatment-only visits'. At each assessment visit (once every 3 months +/- 7 days), patients will receive their injection and will be questioned about adverse events (AEs). Body weight will also be assessed. Paliperidone palmitate will be given once monthly by injection in either the upper arm or buttocks muscle, but start every time with upper arm application. The recommended maintenance dose for these monthly injections is 75 mg eq., range could be between 50 to 150 mg eq. ;

Study Design

Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Schizophrenia

• NCT number: NCT01281527
• Study type: Interventional
• Source: Janssen-Cilag International NV
• Status: Completed
• Phase: Phase 3
• Start date: November 2010
• Completion date: November 2013