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SchizophreniaPhase 3NCT00101634

Efficacy and Safety of a Long Acting Anti-Psychotic Versus Placebo in Patients With Schizophrenia

A Phase 3 study testing Paliperidone palmitate in people with Schizophrenia, run by Johnson & Johnson Pharmaceutical Research & Development, L.L.C..

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to determine the efficacy (how well the drug works), safety, and side effects of paliperidone palmitate compared to placebo in the treatment of the symptoms of schizophrenia in adults. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Schizophrenia
What is being tested?
Paliperidone palmitate
How many people
518 participants
Where
No sites listed yet
Study dates
Dec 2004to Mar 2006
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients who meet diagnostic criteria for schizophrenia according to DSM-IV for at least 1 year
  • meet PANSS score criteria
  • have body mass index (BMI) of >15.0 kilogram(kg)/meter (m)2.

Who cannot join

  • Patients who have primary active DSM-IV Axis I diagnosis other than schizophrenia
  • have a decrease of >/=25% in the PANSS score
  • have DSM-IV diagnosis of active substance dependence within 3 months of screening evaluation (nicotine and caffeine dependence are not exclusionary)
  • have history of treatment resistance as defined by failure to respond to 2 adequate trials of different antipsychotic medications
  • have any severe preexisting gastrointestinal narrowing (pathologic or iatrogenic)
  • have significant risk of suicidal, homicidal or violent ideation or behavior
Show all 9Show fewer
  • current presence of any significant or unstable medication condition
  • treatment with any protocol disallowed therapies
  • clinically significant result from screening laboratory or ECG.

About this study

Official title: A Randomized, Double-blind, Placebo-controlled, Parallel-group, Dose-response Study to Evaluate the Efficacy and Safety of 3 Fixed Doses (25 mg eq, 50 mg eq, and 100 mg eq) of Paliperidone Palmitate in Patients With Schizophrenia

The purpose of this study is to determine the efficacy (how well the drug works), safety, and side effects of paliperidone palmitate compared to placebo in the treatment of the symptoms of schizophrenia in adults. The placebo used in this study was a nutritional substance known as 20% Intralipid emulsion given to patients requiring intravenous feedings.

Read the detailed description

Many patients with schizophrenia have difficulty adhering to a daily oral treatment regimen. Long-acting injectable (LAI) formulations may provide therapeutic plasma concentrations over several weeks, thereby eliminating the need for daily oral medication and making compliance easier. This is a randomized (patients will be assigned to different treatment groups based solely on chance), double-blind (neither the patient nor the physician will know if placebo or drug is being given and at what dose), placebo-controlled, parallel group, multicenter, dose-response study in adults who have schizophrenia. The study consists of a screening period of no more than 7 days and a 13-week double-blind treatment period. The screening period includes 4 days for tolerability testing, if necessary. In the double-blind treatment period, patients will be randomly assigned to 1 of 4 treatment groups (3 fixed doses of paliperidone palmitate or placebo) to receive 4 i.m. injections of paliperidone palmitate or placebo on Days 1, 8, 36, and 64. The study, including the screening period, will last approximately 14 weeks. Efficacy will be assessed throughout the study using the Positive and Negative Symptom Scale for Schizophrenia (PANSS), the Clinical Global Impression-Severity (CGI-S), and the Personal and Social Performance Scale (PSP). Safety will be evaluated throughout the study by monitoring adverse events, extrapyramidal symptom (EPS) rating scales scores, clinical laboratory test results; vital signs and body weight measurements; electrocardiograms (ECGs); and physical examination findings. In addition, the tolerability of injections will be assessed. ER OROS paliperidone 3 mg/day for 4 days. Injections (i.m.) of paliperidone palmitate (25, 50, or 100 mg eq.) will be given on Days 1, 8, 36, and 64.

Conditions
Schizophrenia
Being tested
Paliperidone palmitate
Keywords
Schizophrenia, Paliperidone palmitate, R092670, antipsychotic
Medical subject headings
Schizophrenia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Paliperidone palmitateDrug

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in total PANSS score from baseline to the end of the double blind treatment period.

Secondary outcomes (1)
  1. PSP and CGI-S scores from baseline to the end of of the double-blind treatment. Incidence of adverse events, labs and ECGs throughout study.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Jan 2005 (estimated)
  2. Study startDec 2004
  3. Study completionMar 2006

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Enrolment
518 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00101634
Sponsor's protocol ID
CR003562
Status last verified
Jan 2011
First submitted
12 Jan 2005
Last updated
8 Jun 2011
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Paliperidone palmitate in people with Schizophrenia, run by Johnson & Johnson Pharmaceutical Research & Development, L.L.C..

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Jun 2011. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in total PANSS score from baseline to the end of the double blind treatment period.. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Jun 2011.

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