UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000028322
Receipt number R000031898
Scientific Title Gut microbiota modulation by Salacia extract in Diarrhea-dominant Irritable Bowel Syndrome: a randomized clinical trial
Date of disclosure of the study information 2018/06/01
Last modified on 2019/03/31 13:42:14

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Basic information

Public title

Gut microbiota modulation by Salacia extract in Diarrhea-dominant Irritable Bowel Syndrome: a randomized clinical trial

Acronym

Gut microbiota modulation by Salacia extract in Diarrhea-dominant Irritable Bowel Syndrome: a randomized clinical trial

Scientific Title

Gut microbiota modulation by Salacia extract in Diarrhea-dominant Irritable Bowel Syndrome: a randomized clinical trial

Scientific Title:Acronym

Gut microbiota modulation by Salacia extract in Diarrhea-dominant Irritable Bowel Syndrome: a randomized clinical trial

Region

Japan


Condition

Condition

Diarrhea predominant irritable bowel syndrome (IBS-D)

Classification by specialty

Medicine in general Gastroenterology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To assess whether Salacia extract modulate gut microbiota and influence on the abdominal symptom and stool condition compared to placebo in diarrhea predominant irritable bowel syndrome patients.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Confirmatory

Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Amount of increase of the genus Bifidobacterium proportion from baseline to 4 weeks

Key secondary outcomes

Improvement rate of abdominal pain after 4 weeks
Improvement of IBS-Severity Index score
Improvement of IBS-QOL score
Improvement of Bristol stool scale
Composition of gut microbiota (amount of increase of the genus Veillonella proportion from baseline to 4 weeks, amount of increase of the genus Lactobacillus proportion from baseline to 4 weeks)

[Exploratory outcomes]
Improvement of SF-8 (QOL score)
Improvement of HADS score
Microbiota diversity (Shannon index, Chao1 index, weighted and unweighted UniFrac distances)
Prediction of the functional compositon of a metagenome using PICRUSt
Improvement of IBS-SI score in stratified analysis by each of the following 6 factors (more/less) at baseline
Correlation coefficient between the improvement of IBS-SI score and each increment of the following 6 factors at baseline to 4 weeks
[Six factors]
a. the genus Bifidobacterium (%)
b. the genus Veillonella (%)
c. the genus Lactobacillus (%)
d. the phylum Firmicutes : Bacteroides ratio
e. Shannon index
f. Chao1 index


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Double blind -all involved are blinded

Control

Placebo

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

NO

Concealment

Central registration


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Food

Interventions/Control_1

A : Oral administration of Salacia extract tablets (120mg b.i.d, daily) to subjects for 4 weeks

Interventions/Control_2

B : Oral administration of placebo to subjects for 4 weeks

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


Not applicable

Gender

Male and Female

Key inclusion criteria

1. Patients diagnosed as diarrhea predominant irritable bowel syndrome by the Rome-III criteria

Key exclusion criteria

1. Patients with lactation, pregnancy or possibility of pregnancy.
2. Patients with surgical history of gastrointestinal tract
3. Patients with active inflammatory bowel disease
4. Patients with Celiac disease
5. Patients with organ failure
6. Patients who were administered antibiotics within 4 weeks
7. Patients who took materials containing Salacia extract within 4 weeks
8. Other patients who are deemed inappropriate by the attending physician

Target sample size

45


Research contact person

Name of lead principal investigator

1st name Kazuki
Middle name
Last name Sumiyama

Organization

The Jikei University School of Medicine

Division name

Department of Endoscopy

Zip code

1068461

Address

3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo, japan

TEL

0334331111

Email

kaz_sum@jikei.ac.jp


Public contact

Name of contact person

1st name Hiroto
Middle name
Last name Furuhashi

Organization

The Jikei University School of Medicine

Division name

Department of Endoscopy

Zip code

1058461

Address

3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo, japan

TEL

0334331111

Homepage URL


Email

ms04furuhashi@jikei.ac.jp


Sponsor or person

Institute

The Jikei University School of Medicine

Institute

Department

Personal name



Funding Source

Organization

FUJIFILM Corporation

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization



Other related organizations

Co-sponsor

Kyoto Prefectural University
Isshi Gastrointestinal Clinic
Uchiyama Icho-ka Clinic
Fuji City General Hospital

Name of secondary funder(s)



IRB Contact (For public release)

Organization

Institutional Review Board of The jikei University School of Medicine

Address

3-25-8, Nishi-Shimbashi, Minato-ku, Tokyo, Japan

Tel

03-3433-1111

Email

rinri@jikei.ac.jp


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

2018 Year 06 Month 01 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled

45

Results


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

Completed

Date of protocol fixation

2017 Year 05 Month 16 Day

Date of IRB

2017 Year 05 Month 16 Day

Anticipated trial start date

2017 Year 07 Month 15 Day

Last follow-up date

2018 Year 12 Month 31 Day

Date of closure to data entry


Date trial data considered complete

2019 Year 03 Month 15 Day

Date analysis concluded

2019 Year 03 Month 31 Day


Other

Other related information



Management information

Registered date

2017 Year 07 Month 21 Day

Last modified on

2019 Year 03 Month 31 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000031898


Research Plan
Registered date File name
2017/10/25 Salalcia計画書⑭のコピー.docx

Research case data specifications
Registered date File name

Research case data
Registered date File name