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SchizophrenicsPhase 1/2NCT04754750

Differences in Schizophrenia With One-month and 3-month Paliperidone Palmitate Treatment

A Phase 1/2 study testing Paliperidone Palmitate 156 MG/ML Prefilled Syringe [Invega] and Paliperidone Palmitate 546 MG Intramuscular Suspension, Extended Release [INVEGA TRINZA] in people with Schizophrenics, run by Calo Psychiatric Center.

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

Schizophrenia is a chronic and severe psychiatric disorder, these patients suffer from positive symptoms, negative symptoms and cognitive deficits, of which working memory problems are considered a central cognitive impairment. Read more about this study

Who is it for?
Ages 30 to 69 years
Conditions the study is for
Schizophrenics
What is being tested?
Paliperidone Palmitate 156 MG/ML Prefilled Syringe [Invega] and Paliperidone Palmitate 546 MG Intramuscular Suspension, Extended Release [INVEGA TRINZA]
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
72 participants
Where
No sites listed yet
Study dates
Jan 2015to Jun 2017
Phase
Phase 1/2
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 30 to 69 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • All of them had to meet the diagnostic criteria for schizophrenia according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV).

Who cannot join

  • Patients who had comorbid serious medical illnesses, and may therefore present substantial clinical risk due to pharmacotherapy, were excluded from the sample, as were pregnant and lactating women.

About this study

Official title: Differences in Lipid and Cognitive Change Between One-month and 3-month Paliperidone Palmitate Treatment in Stable Schizophrenia

Schizophrenia is a chronic and severe psychiatric disorder, these patients suffer from positive symptoms, negative symptoms and cognitive deficits, of which working memory problems are considered a central cognitive impairment. Atypical antipsychotics are believed to have a superior effect in reducing both positive and negative symptoms of schizophrenia, coupled with a low risk of extrapyramidal symptoms. Particularly, 2nd-generation antipsychotic medications are commonly used in treatment of schizophrenia. An antipsychotic drug, Paliperidone palmitate (PDP), is administered to patients with schizophrenia as injections at one-month (PP1M) or three-month (PP3M) intervals. This study was compare the effects of treatment, social function, and side effects between PP1M and PP3M in patients with schizophrenia. Moreover, the changes of cognitive and lipid profile between two PDP were also explored. Firstly, participants were received the one month long-acting injection (PP1M) three months. Then, the stable participants were shifted to the three month long-acting injection (PP3M). Concomitant medications were allowed to prescribe except other antipsychotics. Outcome measurements were 20-item Toronto Alexithymia Scale (TAS-20), 45-itme quality of life for mental disorder (QOLMD), Short-version of the Udvalg for Kliniske Undersogelser (short-version UKU), and Wisconsin Card Sorting test (WCST). These measurements were performed every three-month except WCST which was performed every six-month. The different effects of PP1M and PP3M will be expected to find out in this study.

Read the detailed description

This is a two and half-one years, single-arm, nonrandomized, open-label study which was conducted between Jan 2015 to Jun 2017 including from a psychiatric center in southern Taiwan. The stable schizophrenic patients who previously received risperidone long-acting injection for more than one year and shifted to paliperidone palmitate after including in the study. Firstly, participants were received the one month long-acting injection (PP1M) three months. Then, the stable participants were shifted to the three month long-acting injection (PP3M). Concomitant medications were allowed to prescribe except other antipsychotics. Outcome measurements were 20-item Toronto Alexithymia Scale (TAS-20), 45-itme quality of life for mental disorder (QOLMD), Short-version of the Udvalg for Kliniske Undersogelser (short-version UKU), and Wisconsin Card Sorting test (WCST). These measurements were performed every three-month except WCST which was performed every six-month. The effect of treatment was assessed using Personal and Social Performance (PSP) scales for the evaluation of psychosocial functioning at 0, 4, 8, and 12 weeks in first study, and at 0, 3, 6, 9, 12 months in second study, respectively. In addition, all participants were assessed for body weight, waist circumference, and blood lipid profile. To evaluate the lipid profiles, fasting blood samples were analyzed for total cholesterol (TC), Triglyceride (TG), High-density Lipoprotein (HDL) and Low-density Lipoprotein (LDL). These blood samples were collected at every month until study completion.

Conditions
Schizophrenics
Being tested
Paliperidone Palmitate 156 MG/ML Prefilled Syringe [Invega], Paliperidone Palmitate 546 MG Intramuscular Suspension, Extended Release [INVEGA TRINZA]
Keywords
paliperidone palmitate, social function, cognitive function, quality of life
Medical subject headings
Social Adjustment

What participants receive

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

  • Paliperidone Palmitate 156 MG/ML Prefilled Syringe [Invega]Drug

    Also called Sustenna

  • Paliperidone Palmitate 546 MG Intramuscular Suspension, Extended Release [INVEGA TRINZA]Drug

    Also called Trinza

Study groups in NCT04754750
Study groupRoleWhat they receive
INVEGA SustennaActive comparatorINVEGA Sustenna is a one month long-acting injection (PP1M)
Receives: Drug: Paliperidone Palmitate 156 MG/ML Prefilled Syringe [Invega]
INVEGA TrinzaActive comparatorINVEGA Trinza is a three month long-acting injection (PP3M)
Receives: Drug: Paliperidone Palmitate 546 MG Intramuscular Suspension, Extended Release [INVEGA TRINZA]

What is being measured

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

  1. Personal and Social Performance scales (PSP)

    Personal and Social Performance scales was assessed for the evaluation of psychosocial functioning. A higher score represents better psychosocial functioning.

    Measured: 15 months

  2. Short-version of the Udvalg for Kliniske Undersogelser (short-version UKU)

    The Short-version of the Udvalg for Kliniske Undersogelser was assessed for the evaluation of psychic side effect. A higher score present to a mild or severe degree symptoms.

    Measured: 15 months

  3. Wisconsin Card Sorting test (WCST)

    Wisconsin Card Sorting Test was assessed for the performance of cognitive function. A higher score in conceptual level response and lower score in percent of perseverative errors present to greater cognitive function.

    Measured: 15 months

Timeline

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

  1. First posted15 Feb 2021
  2. Study startJan 2015
  3. Primary completionJun 2017
  4. Study completionJun 2017

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 1/2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Model description
Total of 72 participants, including 41 men and 31 female, were received the PP1M three months. The stable participants were shifted to PP3M for one year.
Masking
None (open label)
Enrolment
72 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04754750
Sponsor's protocol ID
100-046
Status last verified
Feb 2021
First submitted
27 Jan 2021
Last updated
15 Feb 2021
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Paliperidone Palmitate 156 MG/ML Prefilled Syringe [Invega] and Paliperidone Palmitate 546 MG Intramuscular Suspension, Extended Release [INVEGA TRINZA] in people with Schizophrenics, run by Calo Psychiatric Center.

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 1 inclusion and 1 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 15 Feb 2021. 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 combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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?

Personal and Social Performance scales (PSP) (time frame: 15 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?
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 15 Feb 2021.

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