UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000024074
Receipt number R000027697
Scientific Title Gluten sensitivity among the patients with schizophrenia and the possibility of therapeutic effect of gluten free diet
Date of disclosure of the study information 2016/10/04
Last modified on 2020/03/23 18:06:47

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Basic information

Public title

Gluten sensitivity among the patients with schizophrenia and the possibility of therapeutic effect of gluten free diet

Acronym

Gluten sensitivity and therapeutic effect of gluten free diet for schizophrenia

Scientific Title

Gluten sensitivity among the patients with schizophrenia and the possibility of therapeutic effect of gluten free diet

Scientific Title:Acronym

Gluten sensitivity and therapeutic effect of gluten free diet for schizophrenia

Region

Japan


Condition

Condition

schizophrenia

Classification by specialty

Psychiatry

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To clarify the gluten sensitivity and its relationships between symptoms , severity, and drugs responsibility among the patients with schizophrenia in Japan and effectiveness of gluten free diet for the schizophrenia patients with gluten sensitivity.

Basic objectives2

Others

Basic objectives -Others

To measure the antibody related to gluten sensitivity with the plasma obtained from the patients with schizophrenia.
To investigate the effectiveness of gluten free diet for the schizophrenia patients with gluten sensitivity, open trail with gluten free diet for two weeks is performed

Trial characteristics_1

Confirmatory

Trial characteristics_2

Others

Developmental phase

Not applicable


Assessment

Primary outcomes

Assessment of gluten sensitivity is determined by the titer of tissue transglutaminase IgA antibody, the deamidated gliadin peptide IgA antibody, gliadin IgA antibody, gliadin IgGa nti body.
The effectiveness of gluten free diet is assessed by PANSS before and two weeks later of taking gluten free diet. Improved patients is assessed at four and eight weeks.

Key secondary outcomes

The comparison between gluten sensitivity group and gluten negative group is performed by PANSS, GAF, SOFAS, QOL-26.
The effectiveness of gluten free diet is assessed by CGI-I


Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification

NO

Dynamic allocation

NO

Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Treatment

Type of intervention

Food

Interventions/Control_1

gluten sensitive patients with schizophrenia have gluten free diet for two weeks. Patients whose symptoms are improved (PANSS score decrease twenty percents or CGI-I score above three at two weeks) continue gluten free diet for eight weeks.

Interventions/Control_2


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

20 years-old <=

Age-upper limit

70 years-old >=

Gender

Male and Female

Key inclusion criteria

patient who met the criteria of schizophrenia in the DSM-5
patient who can understand the purpose of this study and be approved to participate by doctor
patient who can provide written informed consent

Key exclusion criteria

patient with remarkable excitement, violent action, self-injurious behavior
patient with social behavior
patinet who can't provide written informed consent
patient who have substance abuse or dependent

Target sample size

280


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Yamada Hisashi

Organization

hyogo medical college

Division name

department of psychiatry

Zip code


Address

1-1, mukogawatyo, nisinomiya city, hyogo

TEL

0798-45-6051

Email

hisa0820@hyo-med.ac.jp


Public contact

Name of contact person

1st name
Middle name
Last name yamada hisashi

Organization

hyogo medical college

Division name

department of psychiatry

Zip code


Address

1-1, mukogawatyo, nisinomiya city, hyogo

TEL

0798-45-6051

Homepage URL


Email

hisa0820@hyo-med.ac.jp


Sponsor or person

Institute

hyogo medical college
department of psychiatry

Institute

Department

Personal name



Funding Source

Organization

Hyogo College of Medicine

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor

Mihara hospital

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

2016 Year 10 Month 04 Day


Related information

URL releasing protocol


Publication of results

Partially published


Result

URL related to results and publications

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5474459/

Number of participants that the trial has enrolled


Results

There was no significant difference in gluten sensitivity between groups schizophrenia and controls. AG-IgG plasma concentration was significantly higher in patients with schizophrenia than in controls. Treatment-resistant patients in gluten sensitivity were significantly much more than those in non-gluten sensitivity. We found that AG-IgG concentration in treatment-resistant patients is significantly higher than that in non-treatment-resistant patients.

Results date posted

2019 Year 03 Month 22 Day

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

Completed

Date of protocol fixation

2016 Year 10 Month 04 Day

Date of IRB

2016 Year 10 Month 04 Day

Anticipated trial start date

2016 Year 10 Month 04 Day

Last follow-up date

2025 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2016 Year 09 Month 15 Day

Last modified on

2020 Year 03 Month 23 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000027697