UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000006689
Receipt number R000007905
Scientific Title Study investigating the effect of a burdock tea powder on chronic constipation
Date of disclosure of the study information 2011/11/08
Last modified on 2013/03/26 09:06:46

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Basic information

Public title

Study investigating the effect of a burdock tea powder on chronic constipation

Acronym

Study investigating the effect of a burdock tea powder on chronic constipation

Scientific Title

Study investigating the effect of a burdock tea powder on chronic constipation

Scientific Title:Acronym

Study investigating the effect of a burdock tea powder on chronic constipation

Region

Japan


Condition

Condition

chronic constipation

Classification by specialty

Medicine in general Gastroenterology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

We investigated the effects of roasted burdock powder on the bowel habits of subjects with chronic constipation.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

bowel frequency, stool consistency, the numbers of radiopaque markers remaining in the colon

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit


Blinding

Double blind -all involved are blinded

Control

Placebo

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Food

Interventions/Control_1

The subjects take 2 kinds of supplementary diets for 2 weeks each, with a 1-week washout period between them. The placebo supplementary diet(control) is freeze-dried miso soup and the experimental diet is freeze-dried miso soup supplemented with 10 g of burdock powder. The supplementary diets are taken twice daily, at breakfast and dinner, with their usual diet for 2 weeks. Thus, the daily administration of burdock powder during the administration period is 20 g. The order of the supplementary diets for each subject is randomly chosen.

Interventions/Control_2

The subjects take 2 kinds of supplementary diets for 2 weeks each, with a 1-week washout period between them. The placebo supplementary diet(control) is freeze-dried miso soup and the experimental diet is freeze-dried miso soup supplemented with 10 g of burdock powder. The supplementary diets are taken twice daily, at breakfast and dinner, with their usual diet for 2 weeks. Thus, the daily administration of burdock powder during the administration period is 20 g. The order of the supplementary diets for each subject is randomly chosen.

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

Female

Key inclusion criteria

Femals who have less than twice weekly bowel habits

Key exclusion criteria

Pregnant, possibly pregnant, and lactating subjects are excluded, as are those, taking laxatives or prokinetics on an on-demand basis and subjects with drug induced constipation.

Target sample size

10


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Yoshikazu Kinoshita

Organization

Shimane University School of Medicine

Division name

Department of Gastroenterology and Hepatology

Zip code


Address

Enya-cho 89-1, Izumo-shi, Shimane 693-8501, Japan

TEL


Email



Public contact

Name of contact person

1st name
Middle name
Last name

Organization

Shimane University School of Medicine

Division name

Department of Gastroenterology and Hepatology

Zip code


Address

Enya-cho 89-1, Izumo-shi, Shimane 693-8501, Japan

TEL


Homepage URL


Email



Sponsor or person

Institute

Shimane University School of Medicine

Institute

Department

Personal name



Funding Source

Organization

Shimane University School of Medicine

Organization

Division

Category of Funding Organization

Nationality of Funding Organization



Other related organizations

Co-sponsor

Ahjikan Co., LTD

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

2011 Year 11 Month 08 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

Seven patients were analyzed. There were no significant differences regarding mean bowel frequency and stool consistency between the burdock powder administration and control periods, though burdock powder showed a tendency to increase bowel frequency and make stools softer. The numbers of radiopaque markers remaining in the colon at the end of the control and burdock powder periods were not different. No adverse event related to consumption of roasted burdock powder was observed.

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

2010 Year 07 Month 30 Day

Date of IRB


Anticipated trial start date

2010 Year 08 Month 01 Day

Last follow-up date

2011 Year 03 Month 01 Day

Date of closure to data entry

2011 Year 03 Month 01 Day

Date trial data considered complete

2011 Year 05 Month 01 Day

Date analysis concluded

2011 Year 05 Month 01 Day


Other

Other related information



Management information

Registered date

2011 Year 11 Month 08 Day

Last modified on

2013 Year 03 Month 26 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000007905


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name