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SchizophreniaPhase 4PASSNCT00761605

Phase 4 Study to Evaluate Efficacy of Paliperidone Extended-Release(ER) in Schizophrenic Participants

A Phase 4 study testing Paliperidone in people with Schizophrenia, run by Janssen Korea, Ltd., Korea at 8 sites 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

The purpose of this study is to investigate the efficacy of flexibly dosed paliperidone extended-release (mechanism to dissolve a drug over time in order to be released slower and steadier into the blood stream) in improving or maintaining the subjective symptoms of the participants in three participants' groups (that… Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Schizophrenia
What is being tested?
Paliperidone
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
387 participants
Where
8 sitesSouth Korea
Study dates
Apr 2008to Oct 2010
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Childbearing potential women who consent to the use of the consistently permissible contraception (oral contraceptive, contraceptive injection, intrauterine device, double barrier method and contraceptive patch)
  • Participants who are compliant with self-medication or can receive consistent help or support
  • Participants who need to change the antipsychotic drug to another one for the following reasons among the participants treated with an antipsychotic drug for more than two weeks before the screening (1) Group of lack of efficacy: The antipsychotic drug is clinically required to be changed because there is no or little therapeutic response despite the appropriately dosed antipsychotic therapy (2) Group of lack of tolerance: The antipsychotic drug is required to be changed due to lack of tolerance to the existing antipsychotic drug or the safety issue (3) Group of lack of compliance: The antipsychotic drug is required to be changed due to lack of medication compliance or the participant wants to change the antipsychotic drug)

Who cannot join

  • Participants with the past history of neuroleptic malignant syndrome (NMS)
  • Participants who are suspicious of having clinically significant risk including suicide or aggressive behavior and are expected to unable to complete the study (based on the investigator's judgment)
  • Participants with severe preexisting gastrointestinal narrowing (pathologic or iatrogenic) or participants who cannot swallow the drug whole (The study drug must not be chewed, divided, melted or grinded because it can impact the study drug release profile
  • Female participants who are pregnant or are breast feeding
  • Participants who have participated in any investigational drug trial within 1 month prior to the screening visit

Trial locations and contacts

8 sites in 1 country.

8 sites in 1 country

South Korea8 sites
  • Study site

    Chunchun

  • Study site

    Incheon

  • Study site

    Inchun

  • Study site

    Kangwondo

  • Study site

    Kyunggido

  • Study site

    Kyungki

  • Study site

    Kyunki

  • Study site

    Seoul

Other trials in South Korea

About this study

Official title: An Open-label Prospective, Non-comparative Study to Evaluate the Subjective Experiences Upon Transition to Paliperidone Extended Release(ER) in Subjects With Schizophrenia

The purpose of this study is to investigate the efficacy of flexibly dosed paliperidone extended-release (mechanism to dissolve a drug over time in order to be released slower and steadier into the blood stream) in improving or maintaining the subjective symptoms of the participants in three participants' groups (that is, by the reason to switch: lack of efficacy group, lack of tolerability group, and lack of compliance group) who switched from other previous antipsychotic drugs to paliperidone extended-release tablets at flexible doses.

Read the detailed description

This is an open-label (all people know the identity of the intervention), prospective (study following participants forward in time), single arm, and non-comparative study of paliperidone Extended-release (ER) in participants switching from the previous oral antipsychotic to flexibly dosed paliperidone ER. The total study duration will be approximately of 24 weeks per participant. The study consists of 2 parts: Screening (that is, 14 days before study commences on Day 1); Treatment (24 weeks). Efficacy will primarily be evaluated by change from baseline in symptom checklist 90-R (SCL90-R) at Week 24. Participants' safety will be monitored throughout the study.

Conditions
Schizophrenia
Being tested
Paliperidone
Keywords
Schizophrenia, Paliperidone, Paliperidone extended-release, Antipsychotics Agents
Medical subject headings
Schizophrenia

What participants receive

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

  • PaliperidoneDrug

    Also called R076477, Invega Extended-release tablet

    Paliperidone oral tablet will be administered once daily at a dose of 6 milligram (mg) for 24 weeks, wherein dose range was 3 to 12 mg per day.

Study groups in NCT00761605
Study groupRoleWhat they receive
PaliperidoneExperimentalPaliperidone oral tablet will be administered once daily at a dose of 6 milligram (mg) for 24 weeks, wherein dose range was 3 to 12 mg per day.
Receives: Drug: Paliperidone

What is being measured

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

  1. Change From Baseline in Symptom Checklist 90-R (SCL90-R) at Week 24

    The SCL90-R (Derogatis, 1992) measures 9 domains, including somatization, obsessive-compulsive, interpersonal sensitivity, depression, anxiety, hostility, phobic anxiety, paranoid ideation, psychoticism, which provides a global index of distress, the Global Severity Index (GSI). SCL-90-R includes 90 items rated on 5-point scale, ranging from 0 (not at all) to 4 (extremely). Total scale score range from 0 to 360. Higher scores indicate worsening of disease. Change from Baseline was calculated as value at Baseline minus value at Week 24. Data for three groups is presented here, based on participants' transition to Paliperidone ER from other oral antipsychotics.

    Measured: Baseline and Week 24

Secondary outcomes (7)
  1. Change From Baseline in Total Personal and Social Performance (PSP) Score at Week 24

    The PSP scale assesses the degree of dysfunction within 4 domains of behavior: socially useful activities, personal and social relationships, self-care and disturbing and aggressive behavior. The score ranges from 1 to 100, divided into 10 equal intervals to rate the degree of difficulty (1, absent to 6, very severe) in each of the 4 domains. Participants with a score of 71 to 100 have a mild degree of difficulty; from 31 to 70, varying degrees of disability; less or equal to 30, functioning so poorly as to require intensive supervision. Change from Baseline was calculated as value at Baseline minus value at Week 24. Data for three groups is presented here, based on participants' transition to Paliperidone ER from other oral antipsychotics.

    Measured: Baseline and Week 24

  2. Change From Baseline in Subjective Well-being Under Neuroleptic (SWN-20) Scale at Week 24

    The SWN-20 scale is a 20 item scale that was originally designed to explore the subjective experience of psychotic participants. The SWN scale contains five sub-scales consisting of four items each: mental functioning (MF), self-control (SC), emotional regulation (ER), and social integration (SI), physical functioning (PF). The total score ranges from a minimum of 20 (poor subjective experience) to a maximum of 120 (excellent subjective experience). SWN scores appear to correlate with measure of objective psychopathology, quality of life and other self-ratings of mood. Change from Baseline was calculated as value at Baseline minus value at Week 24. Data for three groups is presented here, based on participants' transition to Paliperidone ER from other oral antipsychotics.

    Measured: Baseline and Week 24

  3. Change From Baseline in Sleep Quality Based on Visual Analog Scale at Week 24

    Sleep quality was assessed by an 11-point visual analog scale. Participants indicated on the 11-point visual analog scale (score ranging from 0 to 100 millimeter) how well they have slept in the previous 7 days, from 0 (very badly) to 100 (very well); and how often they have felt drowsy within the previous 7 days, from 0 (not at all) to 100 (all the time). Scores were averaged for the previous 7 days. Change from Baseline was calculated as value at Baseline minus value at Week 24. Data for three groups is presented here, based on participants' transition to Paliperidone ER from other oral antipsychotics.

    Measured: Baseline and Week 24

  4. Change From Baseline in Daytime Drowsiness Based on Visual Analog Scale at Week 24

    Daytime Drowsiness was assessed by an 11-point visual analog scale. Participants indicated on the 11-point visual analog scale (score ranging from 0 to 100 millimeter) how well they have slept in the previous 7 days, from 0 (very badly) to 100 (very well); and how often they have felt drowsy within the previous 7 days, from 0 (not at all) to 100 (all the time). Scores were averaged for the previous 7 days. Change from Baseline was calculated as value at Baseline minus value at Week 24. Data for three groups is presented here, based on participants' transition to Paliperidone ER from other oral antipsychotics.

    Measured: Baseline and Week 24

  5. Change From Baseline in Krawiecka Scale Score at Week 24

    Psychopathology of participants was assessed by Krawiecka scale. Psychopathology of participants was assessed by Krawiecka scale, score ranges from 0 to 16. Higher score indicates worsening of disease. Change from Baseline was calculated as value at Baseline minus value at Week 24. Data for three groups is presented here, based on participants' transition to Paliperidone ER from other oral antipsychotics.

    Measured: Baseline and Week 24

  6. Change From Baseline in Clinical Global Impression - Severity (CGI-S) Score at Week 24

    The CGI-S rating scale is a 7 point global assessment that measures the clinician's impression of the severity of illness exhibited by a participant. A rating of 1 is equivalent to "Normal, not at all ill" and a rating of 7 is equivalent to "Among the most extremely ill participants". Higher scores indicate worsening. Change from Baseline was calculated as value at Baseline minus value at Week 24. Data for three groups is presented here, based on participants' transition to Paliperidone ER from other oral antipsychotics.

    Measured: Baseline and Week 24

  7. Change From Baseline in Clinical Global Impression - Improvement (CGI-I) Score at Week 24

    The CGI-I is a 7-point scale that requires the clinician to assess how much the participant's illness has improved or worsened relative to a baseline state at the beginning of the intervention and rated as: 1=very much improved; 2=much improved; 3=minimally improved; 4=no change; 5=minimally worse; 6=much worse; 7=very much worse. Change from Baseline was calculated as value at Baseline minus value at Week 24. Data for three groups is presented here, based on participants' transition to Paliperidone ER from other oral antipsychotics.

    Measured: Baseline and Week 24

Timeline

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

  1. First posted29 Sep 2008 (estimated)
  2. Study startApr 2008
  3. Primary completionSep 2010
  4. Study completionOct 2010

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
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
387 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00761605
Sponsor's protocol ID
CR015253
Other IDs
PAL-KOR-4003
Acronym
PASS
Status last verified
Sep 2014
First submitted
25 Sep 2008
Last updated
10 Sep 2014
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Paliperidone in people with Schizophrenia, run by Janssen Korea, Ltd., Korea at 8 sites 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 3 inclusion and 5 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 10 Sep 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 8 sites 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?

Yes. Results are posted in the registry (first posted 6 Mar 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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 From Baseline in Symptom Checklist 90-R (SCL90-R) at Week 24 (time frame: Baseline and Week 24). 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 10 Sep 2014.

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