UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000001862
Receipt number R000002240
Scientific Title A multicenter study on early prediction of antipsychotic response in patients with schizophrenia
Date of disclosure of the study information 2009/06/01
Last modified on 2015/04/03 12:39:51

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Basic information

Public title

A multicenter study on early prediction of antipsychotic response in patients with schizophrenia

Acronym

A multicenter study on early prediction of antipsychotic response in patients with schizophrenia

Scientific Title

A multicenter study on early prediction of antipsychotic response in patients with schizophrenia

Scientific Title:Acronym

A multicenter study on early prediction of antipsychotic response in patients with schizophrenia

Region

Japan


Condition

Condition

schizophrenia

Classification by specialty

Psychiatry

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Should we wait for response of the antipsychotic drug severeal weeks more according to conventional clinical guidelines, or replace another one, when we cannnot observe any antipsychotic effects within 2 weeks?

Basic objectives2

Others

Basic objectives -Others

Early prediction of antipsychotic response: Is it possible within 2 weeks?

Trial characteristics_1

Confirmatory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

The rate of remission at 4 weeks after the beginning of antipsychotics

Key secondary outcomes

the Positive and Negative Syndrome Scale (PANSS) ,Clinical Global Impression Change rating scale,Global Assessment of Functioning,the Drug-induced Extrapyramidal Symptom Scale ,blood sugar, total cholesterol, triglyceride


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -but assessor(s) are blinded

Control

Active

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is considered as a block.

Blocking

YES

Concealment

Numbered container method


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Medicine

Interventions/Control_1

olanzapine/risperidone

Interventions/Control_2

risperidone/olanzapine

Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit

65 years-old >

Gender

Male and Female

Key inclusion criteria

schizophrenia, schizophreniform disorder, schizoaffective disorder (DSM-IV: 295.xx)

Key exclusion criteria

1) severe liver, renal, respiratory, or cardiac dysfunction
2) diabetes melitus or its history
3) women during pregnancy or nurse, women who want to get pregnant

Target sample size

500


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Kotaro Hatta

Organization

Juntendo University School of Medicine

Division name

Department of Psychiatry

Zip code


Address

2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan

TEL

03-5802-1071

Email

khatta@juntendo.ac.jp


Public contact

Name of contact person

1st name
Middle name
Last name Kotaro Hatta

Organization

Juntendo University School of Medicine

Division name

Department of Psychiatry

Zip code


Address

2-1-1 Hongo, Bunkyo-ku, Tokyo 113-8421, Japan

TEL

03-5802-1071

Homepage URL


Email

khatta@juntendo.ac.jp


Sponsor or person

Institute

Juntendo University School of Medicine

Institute

Department

Personal name



Funding Source

Organization

the Ministry of Health, Welfare, and Labor of the Japanese Government

Organization

Division

Category of Funding Organization

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization


Address


Tel


Email



Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2009 Year 06 Month 01 Day


Related information

URL releasing protocol


Publication of results

Published


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results

Results
At 4 weeks, 81% of risperidone ERs (n=47) achieved >=50% response, whereas only 9% of staying risperidone ENRs (n=11) achieved >=50% response (P<0.0001). In contrast, 58% of olanzapine ERs (n=33) achieved >=50% response, whereas 25% of staying olanzapine ENRs (n=8) achieved >=50% response (P=0.12). Irrespective of the initial antipsychotics, there were no significant differences in outcomes at 4 weeks between staying ENRs and switching ENRs.
Conclusion
In newly admitted acute schizophrenic patients, non-response to risperidone using CGI-I at 2 weeks can predict subsequent clinical outcomes. However, non-response to olanzapine cannot necessarily be predicted at 2weeks.

Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Main results already published

Date of protocol fixation

2009 Year 04 Month 06 Day

Date of IRB


Anticipated trial start date

2009 Year 07 Month 01 Day

Last follow-up date

2009 Year 11 Month 01 Day

Date of closure to data entry

2010 Year 01 Month 01 Day

Date trial data considered complete

2010 Year 02 Month 01 Day

Date analysis concluded

2010 Year 03 Month 01 Day


Other

Other related information



Management information

Registered date

2009 Year 04 Month 08 Day

Last modified on

2015 Year 04 Month 03 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000002240


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name