AzTrials
AzTrials

Schizophrenia (Recent-onset)Phase 4NCT01451736

Oral Risperidone Versus Injectable Paliperidone Palmitate for Treating First-Episode Schizophrenia

A Phase 4 study testing paliperidone palmitate and risperidone in people with Schizophrenia (Recent-onset), run by University of California, Los Angeles at 1 site in United States.

Completed

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

Official record
Search all trials

Trial summary

This study will determine the efficacy of oral risperidone (Risperdal) versus long-acting injectable paliperidone palmitate (Invega Sustenna) in treating people with first-episode schizophrenia. Read more about this study

Who is it for?
Ages 18 to 45 yearsHealthy volunteers can take part
Conditions the study is for
Schizophrenia (Recent-onset)
What is being tested?
paliperidone palmitate and risperidone
Could I receive a placebo?
No, everyone receives an active treatment
How many people
146 participants
Where
1 siteUnited States
Study dates
Oct 2011to 31 Dec 2021
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 45 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • A first episode of a psychotic illness is occurring or did occur within the last 2 years;
  • A diagnosis by Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition(DSM-IV)of schizophrenia, schizoaffective disorder, depressed type, or schizophreniform disorder; and
  • Between 18 and 45 years of age.

Who cannot join

  • Neurological disorder (e.g., epilepsy) or significant head injury;
  • Significant alcohol or substance use disorder within the six months prior to the first episode and evidence that substance abuse triggered the psychotic episode or makes the schizophrenia diagnosis ambiguous;
  • Mental retardation, i.e. premorbid intelligence quotient (IQ) less than 70;
  • Insufficient acculturation and fluency in the English language to avoid invalidating research measures of thought, language, and speech disorder or of verbal abilities;
  • Residence likely to be outside of commuting distance of the University of California, Los Angeles (UCLA) Aftercare Research Program; or
  • Patient has shown an inadequate response to an adequate previous trial of oral or long-acting injectable risperidone, paliperidone, or paliperidone palmitate.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • UCLA Semel Institute for Neuroscience and Human Behavior

    Los Angeles, California, 90095

Other trials in United States

About this study

Official title: Clinical and Cognitive Effects of Paliperidone Palmitate vs. Oral Risperidone in First-Episode Schizophrenia

This study will determine the efficacy of oral risperidone (Risperdal) versus long-acting injectable paliperidone palmitate (Invega Sustenna) in treating people with first-episode schizophrenia.

Read the detailed description

Schizophrenia is a severely disabling brain disorder. People with schizophrenia often experience hallucinations, delusions, thought disorders, and movement disorders. Proper treatment of first-episode schizophrenia may increase the chances of controlling disease progression on a long-term basis. People experiencing their first episode of schizophrenia are more responsive to treatment than those with chronic schizophrenia, but are also more susceptible to adverse treatment side effects. Atypical antipsychotic medications have been shown to produce fewer extrapyramidal side effects than older "typical" antipsychotics. Oral risperidone is an atypical antipsychotic medication that is very commonly used to control the symptoms of schizophrenia. Adherence to prescribed oral medication continues to be a major clinical issue. This study will determine the effectiveness of oral risperidone versus a long-acting injectible alternative, paliperidone palmitate, in treating people with first-episode schizophrenia. Impact on clinical symptoms and cognitive functioning will be examined.

Participants in this open label study will be randomly assigned to receive either orally administered risperidone or long-acting paliperidone palmitate administered via injection. Participants assigned to oral risperidone will receive medication in doses that are determined to be optimal by the study psychiatrist. Participants assigned to long-acting risperidone will receive an injection of paliperidone palmitate once every 4 weeks. Dosages will be adjusted as necessary to achieve the optimal dosage. Following 2 to 3 months to achieve outpatient oral risperidone dosage stabilization, the randomized medication conditions will begin and participants will be monitored for 1 year. Study visits will occur once weekly throughout the study. They will include psychiatrist monitoring of medication response and side effects; group therapy meetings focused on everyday living skills; family education about schizophrenia; and individual meetings with a case manager for counseling and evaluations of schizophrenia symptoms, work recovery, and social functioning.

Being tested
paliperidone palmitate, risperidone
Keywords
First-episode Schizophrenia, Schizoaffective Disorder, Depressed Type (recent-onset), Schizophreniform Disorder, oral risperidone, long-acting injectable paliperidone palmitate, functional outcome
Medical subject headings
Schizophrenia, Psychotic Disorders

What participants receive

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

  • paliperidone palmitateDrug

    Also called Invega Sustenna

    long-acting injectable

  • risperidoneDrug

    Also called Risperdal

    oral

Study groups in NCT01451736
Study groupRoleWhat they receive
paliperidone palmitate (Invega Sustenna)ExperimentalParticipants will be provided paliperidone palmitate (Invega Sustenna), administered in injectible long-acting form, plus group skills training and case management
Receives: Drug: paliperidone palmitate
oral risperidoneActive comparatorParticipants will be provided oral risperidone, plus group skills training and case management
Receives: Drug: risperidone

What is being measured

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

  1. Exacerbation or relapse of psychotic symptoms

    Exacerbation or relapse of psychotic symptoms, as measured by the Brief Psychiatric Rating Scale (BPRS)

    Measured: Evaluated for 12 months

  2. Cognitive functioning based on Measurement and Treatment Research to Improve Cognition in Schizophrenia (MATRICS) Consensus Cognitive Battery

    The Overall Composite Score from the MATRICS Consensus Cognitive Battery will be the primary cognitive outcome measure.

    Measured: Baseline to 12 months

  3. Role Functioning

    Role Functioning Scale (RFS; Goodman et al. 1993).

    Measured: Baseline to 12 months

Secondary outcomes (5)
  1. Cognitive performance on test battery (MCCB)

    The cognitive domain scores from the MATRICS Consensus Cognitive Battery (MCCB) will be used as secondary measures to identify the domains in which treatment effects occurred.

    Measured: Measured at baseline and 12 months

  2. Insight (Awareness of Mental Disorder)

    Awareness of illness, as assessed by the Scale to Assess Unawareness of Mental Disorder, Revised Version (SUMD-R)

    Measured: Measured at baseline and 12 months

  3. Retention in treatment

    Retention in treatment

    Measured: Measured at 12 months

  4. Social functioning

    Social Functioning Scale (Goodman et al., 1993)

    Measured: Baseline to 12 months

  5. Emotional reactivity on psychophysiological measures

    Emotional reactivity on psychophysiological measures

    Measured: Measured at baseline and 12 months

Timeline

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

  1. First posted14 Oct 2011 (estimated)
  2. Study startOct 2011
  3. Primary completion1 Dec 2021
  4. Study completion31 Dec 2021

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
146 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01451736
Sponsor's protocol ID
P50 MH066286 Phase II
Other IDs
P50MH066286, R092670SCH4005
Status last verified
Apr 2022
First submitted
11 Oct 2011
Last updated
11 Apr 2022
Results posted
No
Data monitoring committee
No

Publications

  • Subotnik KL, Ventura J, McEwen SC, Turner LR, Sturdevant YR, Distler MG, Casaus LR, Zito MF, Hellemann GS, Sugar CA, Whelan FG, Niess TL, McGraw EA, Nuechterlein KH. Aerobic Exercise Enhances the Impact of Cognitive Training on Positive Symptoms After a First Episode of Schizophrenia. Behav Modif. 2025 Nov;49(5-6):430-449. doi: 10.1177/01454455251371021. Epub 2025 Sep 10.

    PubMed 40928164

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing paliperidone palmitate and risperidone in people with Schizophrenia (Recent-onset), run by University of California, Los Angeles at 1 site in United States.

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 6 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 11 Apr 2022. 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 United States. 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?

Exacerbation or relapse of psychotic symptoms (time frame: Evaluated for 12 months). The study lists 3 primary outcomes in all. 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 NCT01451736, 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 11 Apr 2022.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in