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SchizophreniaPhase 4NCT00827840

Paliperidone Extended-Release (ER) Versus Risperidone for Neurocognitive Function in Patients With Schizophrenia

A Phase 4 study testing Paliperidone ER and Risperidone in people with Schizophrenia, run by Chonnam National University Hospital at 1 site in South Korea.

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

Primary objective: To examine whether the switch to paliperidone ER from risperidone improves cognitive function in stabilized patients with schizophrenia. Secondary objectives: To compare the general clinical outcomes (efficacy and safety) after switching to paliperidone ER from risperidone Read more about this study

Who is it for?
Ages 18 to 59 years
Conditions the study is for
Schizophrenia
What is being tested?
Paliperidone ER and Risperidone
Could I receive a placebo?
No, everyone receives an active treatment
How many people
58 participants
Where
1 siteSouth Korea
Study dates
Nov 2008to Feb 2011
Phase
Phase 4
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 to 59 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Patients diagnosed as schizophrenia by DSM-IV-TR criteria both in inpatients
  • Patients who are symptomatically stable, as judged by the treating psychiatrist, and receive a stable dose of risperidone for a minimum of 2 weeks before enrollment.
  • Patients with ability to complete various questionnaires.
  • Patients and/or their legal guardians/representatives who sufficiently understand the objective of the study and sign informed consent form

Who cannot join

  • Active psychotic symptoms, including severe behavioral disturbance
  • Relevant history of or current presence of any significant or unstable medical disease
  • A woman who is pregnant, breast-feeding or planning to become pregnant during the study period
  • Patients with the history of serious allergy or multiple adverse drug reactions
  • Patients with the history of taking paliperidone ER within 60 days
  • Patients with history of taking clozapine within 60 days
  • Patients who require the treatment of other medications influencing CNS, except permitted concomitant drugs in advance

Trial locations and contacts

1 site in 1 country.

South Korea1 site
  • Dept. of Psychiatry, Chonnam National Univeristy Hospital

    Gwangju, 501-757

Other trials in South Korea

About this study

Official title: Paliperidone ER Versus Risperidone for Neurocognitive Function in Patients With Schizophrenia: a Randomized, Open-label, Controlled Trial

Primary objective: To examine whether the switch to paliperidone ER from risperidone improves cognitive function in stabilized patients with schizophrenia.

Secondary objectives: To compare the general clinical outcomes (efficacy and safety) after switching to paliperidone ER from risperidone

Read the detailed description

This is a 12-week, randomized, parallel-group, open labeled, flexible-dose study. The patients will be randomized to the risperidone-continuation group in which they continue to receive risperidone, or to the paliperidone-switch group in which they are switched from risperidone to paliperidone. In the paliperidone-switch group, risperidone will be tapered off during the first 4 weeks of the study, while paliperidone is titrated simultaneously. The doses of both drugs will be adjusted according to the clinical judgment of each research psychiatrist, within 6 mg/day of risperidone and 12 mg/day of paliperidone.

Conditions
Schizophrenia
Being tested
Paliperidone ER, Risperidone
Medical subject headings
Schizophrenia

What participants receive

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

  • Paliperidone ERDrug

    Also called Invega

    3mg to 12mg of Paliperidone ER once a day

  • RisperidoneDrug

    Also called Risperdal

    1 to 6 mg of risperidone once or twice a day

Study groups in NCT00827840
Study groupRoleWhat they receive
1. Paliperidone ERExperimentalNew antipsychotics
Receives: Drug: Paliperidone ER
2 RisperidoneActive comparatorNot described
Receives: Drug: Risperidone

What is being measured

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

  1. Neurocognitive function

    Measured: 12 weeks

Secondary outcomes (1)
  1. Positive and Negative Syndrome Scale (PANSS)

    Measured: monthly

Timeline

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

  1. First posted23 Jan 2009 (estimated)
  2. Study startNov 2008
  3. Primary completionFeb 2011
  4. Study completionFeb 2011

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
58 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00827840
Sponsor's protocol ID
PAL-KOR-9006
Status last verified
Dec 2011
First submitted
22 Jan 2009
Last updated
23 Dec 2011
Results posted
No
Data monitoring committee
Yes

Publications

  • Kim SW, Chung YC, Lee YH, Lee JH, Kim SY, Bae KY, Kim JM, Shin IS, Yoon JS. Paliperidone ER versus risperidone for neurocognitive function in patients with schizophrenia: a randomized, open-label, controlled trial. Int Clin Psychopharmacol. 2012 Sep;27(5):267-74. doi: 10.1097/YIC.0b013e328356acad.

    PubMed 22809972

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Paliperidone ER and Risperidone in people with Schizophrenia, run by Chonnam National University Hospital at 1 site in South Korea.

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 4 inclusion and 7 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 23 Dec 2011. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.

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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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?

Neurocognitive function (time frame: 12 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00827840, which also lists 1 linked publication.

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 23 Dec 2011.

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