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SchizophreniaPhase 4GiSASNCT01052389

Pragmatic RCT Comparing Aripiprazole, Olanzapine and Haloperidol in the Treatment of Schizophrenia

A Phase 4 study testing Aripiprazole, Olanzapine and Haloperidol in people with Schizophrenia, run by Mario Negri Institute for Pharmacological Research at 1 site in Italy.

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 GiSAS study is a multi-centre randomized clinical trial that will involve about 80 italian community psychiatric services in Italy and will recruit 800 patients affected by schizophrenia. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Schizophrenia
What is being tested?
Aripiprazole, Olanzapine and Haloperidol
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
300 participants
Where
1 siteItaly
Study dates
Jul 2007to Jun 2013
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • men and women, 18 years of age and over, who meet DSM-IV criteria for schizophrenia, based upon the Mini International Neuropsychiatric Interview;
  • patients entering the study must, according to their own judgment in consultation with their physician, have a condition appropriate for (a) starting treatment with an oral antipsychotic medication or (b) changing antipsychotic treatment.

Who cannot join

  • diagnosis of metabolic syndrome, defined as the fulfilling of at least 3 of the diagnostic criteria for the metabolic syndrome derived from Adult Treatment Protocol III (ATP III);
  • diagnosis of diabetes mellitus type II;
  • presence of an organic condition clearly contraindicating treatment with one of the studied drugs, e.g., pregnancy or breast-feeding;
  • one of the studied treatments is positively known to be ineffective or not tolerable and consequently contraindicated;
  • the patient has never been exposed to antipsychotic drugs;
  • according to clinician's opinion, it is unlikely that the patient can be followed for the whole duration of the study (1 year).

Trial locations and contacts

1 site in 1 country.

Italy1 site
  • Department of Mental Health

    Genoa, Liguria, 16125

Other trials in Italy

About this study

Official title: GiSAS Trial: Aripiprazole, Olanzapine, and Haloperidol in the Long Term Treatment of Schizophrenia.

The GiSAS study is a multi-centre randomized clinical trial that will involve about 80 italian community psychiatric services in Italy and will recruit 800 patients affected by schizophrenia.

In a sample of schizophrenic outpatients, it is hypothesized that there are significant differences in the overall tolerability and effectiveness of aripiprazole, olanzapine and haloperidol at 12 months.

Read more

It is a pragmatic trial. Thus, participants are selected to represent a broad range of "real-world" patients, all treatment medications are non-blinded and after randomization, the assigned drugs will be prescribed according to usual care practice.

The measure for effectiveness is retention of patients on the assigned treatment. The measure for tolerability is the onset of metabolic syndrome.

Read the detailed description

Specific aim.

The GiSAS study is a randomized controlled superiority trial that aims to evaluate the tolerability and effectiveness of aripiprazole, olanzapine and haloperidol in outpatients with schizophrenia over a 12-month period.

Inclusion criteria.

  • Age≥18.
  • Patients entering the study must have a condition appropriate for changing the antipsychotic treatment or starting a new one.

Exclusion criteria.

  • Diagnosis of metabolic syndrome.
  • Diagnosis of diabetes mellitus type II.
  • The patient has never been exposed to antipsychotic drugs.
  • One of the studied treatments is clearly contraindicated.

Recruitment.

The study will be conducted in a broad array of clinical settings in order to provide generalizable and practically relevant study findings. The recruitment period will last 12 months in each participating center.

Study design.

The GiSAS study is a multi-centre RCT that will involve about 80 italian psychiatric services and will recruit 800 patients affected by schizophrenia.

In a non-selected sample of schizophrenic patients, it is hypothesized that there are significant differences in the overall safety, tolerability and acceptability of aripiprazole, olanzapine and haloperidol and consequently in their effectiveness.

It is a pragmatic trial. Thus, participants are selected to represent a broad range of "real-world" patients, including those with comorbid conditions (i.e. substance use disorders, medical problems.

Patients will be assessed:

  • at baseline (all subjects);
  • when monotherapy treatment is stopped;
  • at 12 months (all subjects).

Pharmacological treatments.

In this study, the following drugs will be tested: (a) aripiprazole, (b) olanzapine, (c) haloperidol. All treatment medications are non-blinded.

After randomization, the assigned drugs will be prescribed according to usual care practice. Patients will be prescribed daily oral dose of the assigned drug, based on individual response and side-effects. For patients already taking an antipsychotic medication prior to study entry, tapering the previous medication over a period of four weeks will be allowed.

All the drugs used in each arm of GiSAS trial are currently licensed and marketed in Italy for the treatment of schizophrenia. No other antipsychotic medication will be allowed.

Concomitant psychotropic medication (e.g. benzodiazepines, antidepressants) and the use of non-psychotropic drugs will be allowed and routinely recorded.

Primary outcomes.

The measure for effectiveness is retention of patients on the assigned treatment at 12 months. The measure for tolerability is the onset of metabolic syndrome at 12 months (primary endpoint). Switching to another antipsychotic, adding a second antipsychotic or stopping antipsychotic treatment will be considered as drug discontinuation. Reasons for discontinuation will be registered and will be taken into account when creating the secondary outcomes.

In order to capture whether, when and why participants stop the assigned treatment or add concomitant medication, the patients' ongoing treatments will be monitored at least once a month.

The primary endpoint (i.e. Metabolic Syndrome) is assessed centrally by blinded independent observers.

All statistical analyses will be blinded and will include all randomized subjects following the intent-to-treat principle.

Conditions
Schizophrenia
Being tested
Aripiprazole, Olanzapine, Haloperidol
Keywords
Schizophrenia, Pragmatic RCT, Aripiprazole, Olanzapine, Haloperidol, Metabolic syndrome, Drug discontinuation
Medical subject headings
Schizophrenia, Metabolic Syndrome

What participants receive

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

  • AripiprazoleDrug

    Also called ATC code: N05AX12

    Patients allocated to aripiprazole will be prescribed daily oral dose of drug, based on individual response and side-effects. Suggested starting dose will be 10 mg/day and dose range will be 10-30 mg/day.

  • OlanzapineDrug

    Also called ATC code: N05AH03

    Patients allocated to olanzapine will be prescribed daily oral dose of drug, based on individual patients' response and side-effect burden. Suggested starting dose will be 5 mg/day and dose range will be 10-20 mg/day.

  • HaloperidolDrug

    Also called ATC code: N05AD01

    Patients allocated to haloperidol FGA arm will be prescribed daily oral dose of drug, based on individual patients' response and side-effect burden.

    Suggested starting dose will be 1-3 mg/day and dose range 3-10 mg/day (chlorpromazine equivalents: suggested starting dose 50-100 mg/day; dose range 150-300 mg/day).

Study groups in NCT01052389
Study groupRoleWhat they receive
AripiprazoleExperimentalAripiprazole (N05AX12)
Receives: Drug: Aripiprazole
OlanzapineExperimentalOlanzapine (N05AH03)
Receives: Drug: Olanzapine
HaloperidolExperimentalHaloperidol (N05AD01)
Receives: Drug: Haloperidol

What is being measured

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

  1. The measure for tolerability is the onset of metabolic syndrome as defined by meeting at least 3 of the following criteria: (1) abdominal obesity, (2) high triglycerides, (3) high HDL, (4) high blood pressure and (5) hyperglycaemia.

    Measured: 12 months

Secondary outcomes (6)
  1. The primary measure for effectiveness is retention of patients on the assigned treatment at 12 months. Switching to another antipsychotic, adding a second antipsychotic or stopping antipsychotic treatment will be considered as drug discontinuation.

    The trial takes account of two main outcomes, one for tolerability and one for effectiveness. Together, in fact, they must provide the most clinically relevant and convincing evidence directly related to the primary objective of the trial. The proportion of subjects who developed MS at one year was compared between the study groups and was adopted as primary endpoint. However, as the study design and conduction were focused on the one-year retention of the allocated monotherapy, the study power was estimated for this secondary endpoint too

    Measured: 12 months

  2. Global functioning and symptomatology (GAF)

    Measured: 12 months.

  3. Time to discontinuation due to efficacy

    Measured: 12 months.

  4. Time to discontinuation due to side effects

    Measured: 12 months

  5. Worsening of metabolic profile

    Defined as the onset of at least one metabolic syndrome criterion; onset of serum lipids abnormalities (dyslipidemia)

    Measured: 12 months

  6. Neuroleptic side effects' self-rating (LUNSERS)

    Measured: 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 posted20 Jan 2010 (estimated)
  2. Study startJul 2007
  3. Primary completionJun 2012
  4. Study completionJun 2013

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
Single blind
Who is masked
Outcomes assessor
Enrolment
300 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01052389
Sponsor's protocol ID
GiSAS 001
Other IDs
2007-000278-22
Acronym
GiSAS
Status last verified
Apr 2014
First submitted
18 Jan 2010
Last updated
10 Apr 2014
Results posted
No
Data monitoring committee
Yes

Publications

  • Ibragimov K, Keane GP, Carreno Glaria C, Cheng J, Llosa AE. Haloperidol (oral) versus olanzapine (oral) for people with schizophrenia and schizophrenia-spectrum disorders. Cochrane Database Syst Rev. 2024 Jul 3;7(7):CD013425. doi: 10.1002/14651858.CD013425.pub2.

    PubMed 38958149
  • Ghio L, Natta W, Barbato A, Marcenaro M, Gotelli S, Jones PB, Parabiaghi A. Schizophrenia trial participation: perceived inclusion barriers and beliefs about antipsychotics. Pharmacopsychiatry. 2011 Jun;44(4):123-8. doi: 10.1055/s-0031-1277147. Epub 2011 Jun 27.

    PubMed 21710401
  • Parabiaghi A, D'Avanzo B, Tettamanti M, Barbato A; GiSAS Study Group. The GiSAS study: rationale and design of a pragmatic randomized controlled trial on aripiprazole, olanzapine and haloperidol in the long-term treatment of schizophrenia. Contemp Clin Trials. 2011 Sep;32(5):675-84. doi: 10.1016/j.cct.2011.04.008. Epub 2011 Apr 30.

    PubMed 21554991

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Aripiprazole, Olanzapine and Haloperidol in people with Schizophrenia, run by Mario Negri Institute for Pharmacological Research at 1 site in Italy.

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 2 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 10 Apr 2014. 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 Italy. 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?

The measure for tolerability is the onset of metabolic syndrome as defined by meeting at least 3 of the following criteria: (1) abdominal obesity, (2) high triglycerides, (3) high HDL, (4) high blood pressure and (5) hyperglycaemia. (time frame: 12 months). 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 NCT01052389, which also lists 3 linked publications.

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 Apr 2014.

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