UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000001303
Receipt number R000001532
Scientific Title Prospective randomized controlled trial of oral sodium phosphate and polyethylene glycol lavage in bowel preparation for colonoscopy
Date of disclosure of the study information 2008/08/07
Last modified on 2010/10/11 12:02:03

* This page includes information on clinical trials registered in UMIN clinical trial registed system.
* We don't aim to advertise certain products or treatments


Basic information

Public title

Prospective randomized controlled trial of oral sodium phosphate and polyethylene glycol lavage in bowel preparation for colonoscopy

Acronym

VisiN study

Scientific Title

Prospective randomized controlled trial of oral sodium phosphate and polyethylene glycol lavage in bowel preparation for colonoscopy

Scientific Title:Acronym

VisiN study

Region

Japan


Condition

Condition

Patients scheduled for colonoscopy

Classification by specialty

Gastroenterology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To evaluate efficacy of oral phosphate tablets and polyethylene glycol lavage in bowel preparation for colonoscopy by
comparison of lesion detection rates

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

To evaluate detection rates of polyps smaller than 5mm

Key secondary outcomes

To evaluate detection rates of all prominent lesions and diverticula
To evaluate blood pressure and pulse rates of patients before and after
colonoscopy


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Active

Stratification


Dynamic allocation

YES

Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Diagnosis

Type of intervention

Medicine

Interventions/Control_1

Niflec(polyethylene glycol lavage) group
1) 10ml Laxoberon Solution is administered orally at bedtime
2) Patients are instructed to drink only clear liquids after dinner
3) At our endscopy unit, patient should drink 2L polyethylene glycol lavage (Niflec) at the speed of about 200ml for every ten minutes from beginning time
(10:00 a.m.)

Interventions/Control_2

Visiclear(oral phosphate tablets) group
1) 10ml Laxoberon Solution is
administered orally at bedtime
2) Patients are instructed to drink only clear liquids after dinner
3) At our endoscopy unit, patient should take 40 sodium phosphate tablets (Visiclear tablets) in divided doses (take as 5 tablets every 15 minutes with 200mL of clear liquids [water or tea]) from beginning time (10:00 a.m.)

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

75 years-old >

Gender

Male and Female

Key inclusion criteria

Patients who fills everything the
following
1) Patients scheduled for colonoscopy in our hospital
2) Age of patients is from 20 to 75 years old
3) Patients who were able to
provide written informed consent for
participation in this study
4) Outpatient and in-patient

Key exclusion criteria

The following proceduresis excluded from the criteria
1) Patients with uncontrolled congestive heart failure, unstable angina, untreated cardiac arrhythmia, prolong QT interval, myocardial infarction, percutaneous transluminal coronary angioplasty or previous coronary artery bypass graft surgery, basic heart disease (valvular disease, cardiomyopathy, and arrhythmia, etc.)
2) Patients with the presence of ascites
3) Patients with acute bowel obstruction or pseudo-obstruction of the bowel
4) Patients with toxic megacolon
5) Patients with biopsy-proven acute phosphate nephropathy
6) Patients who is known allergy or hypersensitivity to NaP salts or PEG
7) Patients with renal insufficiency (creatinine>2.0mg/dL or BUN>25mg/dL)
8) Patients with a history of convulsive
attack or Patients at higher risk of
convulsive attack
9) Patients with severe chronic constipation
10) Patients with clinical symptoms caused by narrowing of colon lumen or diverticulosis of colon
11) Patients who need emergency colonoscopy
12) Patients with inflammatory bowel disease
13) Pregnant females and lactating women
14) Patients who needs endoscopic therapy (EMR, polypectomy, etc.)
15) Patients who have past history of abdominal surgery other than appendectomy
16) Patients whom examination the responsible(contributory) doctor
evaluate inappropriate as study subjects


Target sample size

200


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Yutaka Yamaji

Organization

The University of Tokyo Hospital

Division name

Department of Gastroenterology

Zip code


Address

7-3-1 Hongo, Bunkyo-ku, Tokyo

TEL


Email



Public contact

Name of contact person

1st name
Middle name
Last name

Organization

The University of Tokyo Hospital

Division name

Department of Gastroenterology

Zip code


Address


TEL

03-3815-5411(33070)

Homepage URL


Email



Sponsor or person

Institute

Department of Gastroenterology, The University of Tokyo Hospital

Institute

Department

Personal name



Funding Source

Organization

Department of Gastroenterology, The University of Tokyo Hospital

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



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

2008 Year 08 Month 07 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


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

Terminated

Date of protocol fixation

2008 Year 04 Month 24 Day

Date of IRB


Anticipated trial start date

2008 Year 08 Month 01 Day

Last follow-up date

2010 Year 06 Month 01 Day

Date of closure to data entry

2010 Year 12 Month 01 Day

Date trial data considered complete

2010 Year 12 Month 01 Day

Date analysis concluded

2010 Year 12 Month 01 Day


Other

Other related information



Management information

Registered date

2008 Year 08 Month 07 Day

Last modified on

2010 Year 10 Month 11 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000001532


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name