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Neuroleptic-Induced Tardive DyskinesiaPhase 4NCT00621998

Risperidone and Olanzapine for the Schizophrenic Patients With Neuroleptic-Induced Tardive Dyskinesia

A Phase 4 study testing risperidone and olanzapine in people with Neuroleptic-Induced Tardive Dyskinesia, run by Taoyuan Psychiatric Center, Ministry of Health and Welfare, Executive Yuan, R.O.C. Taiwan at 1 site in Taiwan.

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

We initiate a study with research grant from department of health and Taoyuan mental hospital and choose risperidone and olanzapine as study medications. We compare the effects of these 2 drugs in schizophrenic spectrum patients of Han ethnics with neuroleptic-induced tardive dyskinesia to test the hypothesis that… Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Neuroleptic-Induced Tardive Dyskinesia
What is being tested?
risperidone and olanzapine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
1 siteTaiwan
Study dates
Jul 2000to Jun 2004
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 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age of 18-70 y/o
  • Female patients did not have pregnancy plans and must agree to use reliable pregnancy prevention methods if during childbearing age
  • Meet schizophrenia, schizophreniform or schizoaffective disorder criteria of DSM-IV
  • Fulfill DSM-IV neuroleptic-induced tardive dyskinesia research criteria, the severity of tardive dyskinesia was no less than moderate degree (> or =4) assessed by global impression of Extrapyramidal System Rating Scale (item 42 of ESRS)
  • Patients or legal responsible people agree to join study and sign informed consent

Who cannot join

  • Had other axis I diagnosis of DSM-IV
  • Unstable major systemic diseases
  • Had neurological disorder influenced to EPS assessment
  • Substance abuse or dependence other then coffee or tobacco within 6 months before study

Trial locations and contacts

1 site in 1 country.

Taiwan1 site
  • Taoyuan Mental Hospital

    Taoyuan, 33058

Other trials in Taiwan

About this study

Official title: A Randomized Controlled Trial of Risperidone and Olanzapine for the Schizophrenic Patients With Neuroleptic-Induced Tardive Dyskinesia

We initiate a study with research grant from department of health and Taoyuan mental hospital and choose risperidone and olanzapine as study medications. We compare the effects of these 2 drugs in schizophrenic spectrum patients of Han ethnics with neuroleptic-induced tardive dyskinesia to test the hypothesis that these two medications have different effects in improving tardive dyskinesia.

Read the detailed description

Objective: First generation antipsychotics would induce tardive dyskinesia in some schizophrenic patients. Second generation antipsychotics were the choices for these patients. But which one of second generation antipsychotic was the better choice did not have definitive results. We compared risperidone and olanzapine in schizophrenic patients with neuroleptic-induced tardive dyskinesia to see their effects in improving tardive dyskinesia. We also collected the data of average dose of risperidone and olanzapine to help the dosing strategy guidelines for the schizophrenic patients with neuroleptic-induced tardive dyskinesia.

Method: This randomized, rater-blind, parallel group, flexible dose study enrolled patients from Taoyuan Mental Hospital from July 2000 to December 2003. Schizophrenia, schizophreniform or schizoaffective disorder (DSM-IV) patients who met the research criteria of neuroleptic-induced tardive dyskinesia research criteria of DSM-IV and no less than moderate severity (> or =4) of global impression of extrapyramidal syndrome rating scale (ESRS). 60 patients were random assignment to risperidone or olanzapine for 24 weeks. The primary outcome was to compare the change of total scores of abnormal involuntary movement scale from baseline to study endpoint.

Being tested
risperidone, olanzapine
Keywords
Risperidone, Olanzapine, Tardive dyskinesia
Medical subject headings
Tardive Dyskinesia

What participants receive

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

Study groups in NCT00621998
Study groupRoleWhat they receive
1ExperimentalFlexible dose of olanzapine
Receives: Drug: olanzapine
2Active comparatorFlexible dose of risperidone
Receives: Drug: risperidone

What is being measured

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

  1. Total scores of AIMS

    Measured: The change from baseline to study endpoint

Secondary outcomes (2)
  1. Total scores of BPRS

    Measured: The change from baseline to study endpoint

  2. Extrapyramidal syndrome rating scale

    Measured: The change from baseline to study endpoint

Timeline

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

  1. First posted22 Feb 2008 (estimated)
  2. Study startJul 2000
  3. Primary completionDec 2003
  4. Study completionJun 2004

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
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00621998
Sponsor's protocol ID
TMH-91-02
Other IDs
DOH-890010
Status last verified
Feb 2000
First submitted
13 Feb 2008
Last updated
22 Feb 2008
Results posted
No
Data monitoring committee
Yes

Publications

  • Chan HY, Chiang SC, Chang CJ, Gau SS, Chen JJ, Chen CH, Hwu HG, Lai MS. A randomized controlled trial of risperidone and olanzapine for schizophrenic patients with neuroleptic-induced tardive dyskinesia. J Clin Psychiatry. 2010 Sep;71(9):1226-33. doi: 10.4088/jcp.09m05155yel.

    PubMed 20441726

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing risperidone and olanzapine in people with Neuroleptic-Induced Tardive Dyskinesia, run by Taoyuan Psychiatric Center, Ministry of Health and Welfare, Executive Yuan, R.O.C. Taiwan at 1 site in Taiwan.

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 5 inclusion and 4 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 22 Feb 2008. 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 Taiwan. 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?

Total scores of AIMS (time frame: The change from baseline to study endpoint). 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 NCT00621998, 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 22 Feb 2008.

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