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Small Bowel DiseasePhase 4NCT02486536

The Best Dosage and Timing of Polyethylene Glycol for Bowel Preparation Before Capsule Endoscopy

A Phase 4 study testing polyethylene glycol and capsule endoscopy in people with Small Bowel Disease, run by Zhizheng Ge at 3 sites in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The aim of this study is to evaluate the ideal dose of PEG and timing of bowel preparation in patients referred for CE examination. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Small Bowel Disease
What is being tested?
polyethylene glycol and capsule endoscopy
Could I receive a placebo?
No, everyone receives an active treatment
How many people
410 participants
Where
3 sitesChina
Study dates
Jul 2015to Jun 2017
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients aged between 18 and 75 years and referred to capsule endoscopy because of suspected small-bowel disease are prospectively eligible for entry into the study.

Who cannot join

  • Age < 18 or > 75 years
  • Known or suspected GI stricture or fistula
  • A history of GI tract resection
  • Swallowing disorders
  • Intensive therapy with fasting and parenteral nutrition;with a disease that may reduce movement of the GI tract, such as diabetes mellitus
  • Medications that could affect gastrointestinal movement within one week
Show all 14Show fewer
  • Implanted with a medical electronic device
  • Active inflammatory bowel disease, toxic megacolon, toxic colitis
  • Severe pulmonary, cardiac, renal, or hepatic disease
  • Uncontrolled hypertension (systolic blood pressure>170 mm Hg, diastolic blood pressure>100 mm Hg);
  • Disturbance of electrolytes
  • Pregnancy or lactation
  • Patients inability to provide written voluntary informed consent
  • Participation in another clinical study

Trial locations and contacts

3 sites in 1 country.

China3 sites
  • Huashan Hospital

    Shanghai, Shanghai Municipality, 200040

  • Tongren Hospital Affiliated to Shanghai Jiaotong University, China

    Shanghai, Shanghai Municipality, 200050

  • Department of Gastroenterology, Renji Hospital, Shanghai Institute of Digestive Diseases, Shanghai Jiao Tong University School of Medicine

    Shanghai, Shanghai Municipality, 200127

Other trials in China

About this study

Official title: The Best Dosage and Timing of PEG for Bowel Preparation Before Capsule Endoscopy a Prospective, Single-Blind, Randomized, Multi-center Study

The aim of this study is to evaluate the ideal dose of PEG and timing of bowel preparation in patients referred for CE examination.

Being tested
polyethylene glycol, capsule endoscopy
Keywords
capsule endoscopy, polyethylene glycol, bowel preparation solutions

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • polyethylene glycolDrug

  • capsule endoscopyDevice

Study groups in NCT02486536
Study groupRoleWhat they receive
Group AActive comparatorFast for 12h before the examination and take 8ml of Simethicone Emulsion (Berlin-Chemie, Germany, containing 40 mg simethicone in 1mL emulsion) with 250ml water 30min before capsule ingestion.CE are performed with the Pillcam SB2 capsule endoscopy system (Given Imaging Co. Ltd., Yoqnem, Israel).
Receives: Device: capsule endoscopy
Group BActive comparatorthe same as protocol A plus 1L Polyethylene glycol 11-12h before VCE. CE are performed with the Pillcam SB2 capsule endoscopy system.
Receives: Drug: polyethylene glycol; Device: capsule endoscopy
Group CActive comparatorthe same as protocol A plus 2L Polyethylene glycol 10-12h before VCE. CE are performed with the Pillcam SB2 capsule endoscopy system.
Receives: Drug: polyethylene glycol; Device: capsule endoscopy
Group DActive comparatorGroup D: the same as protocol A plus 1L Polyethylene glycol 3-4h before VCE. CE are performed with the Pillcam SB2 capsule endoscopy system.
Receives: Drug: polyethylene glycol; Device: capsule endoscopy
Group EActive comparatorGroup E: the same as protocol A plus 2L Polyethylene glycol 2-4h before VCE. CE are performed with the Pillcam SB2 capsule endoscopy system.
Receives: Drug: polyethylene glycol; Device: capsule endoscopy

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. the quality of visualization of the small bowel

    The image quality was evaluated only in cases in which the capsule reached the cecum within the examination period. All CE images will be assessed at low speed (10 frames/s) under the AutoView mode of the RAPID workstation (Given Imaging). The intestinal mucosa is defined as clean if, less than 25% of the mucosal surface was covered by dark liquid, bubbles or debris. Using a timer, the investigators record the exact time period during which the small intestinal mucosa was clean. The definition of "excellent" is at least 90% of the overall small bowel mucosa is clean (the sum of "clean" time /total small bowel transit time>90%). And the definition of "good" is at least 80% of the overall small bowel mucosa is clean. We considered that "excellent" or "good" preparation is adequate to make an accurate diagnosis.

    Measured: one week after CE procedure

Secondary outcomes (2)
  1. patient acceptability

    A visual analogical scale (VAS) is used to evaluate the degree of patients' discomfort. The numerical scale between 0 and 10, with 0 being no burden at all and 10 indicating an intolerable procedure.

    The questionnaire provide information about whether they experienced nausea, bloating, or any discomfort during the bowel preparation, difficulty to complete the preparation, their willingness to repeat the same preparation in the future (yes or no)and did it affect their daily activity and nocturnal rest.

    Measured: day of CE procedure

  2. diagnostic rate

    Measured: one year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Jul 2015 (estimated)
  2. Study startJul 2015
  3. Primary completionJun 2017
  4. Study completionJun 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Other
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
410 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02486536
Sponsor's protocol ID
2015-045k
Status last verified
Jun 2017
First submitted
24 Jun 2015
Last updated
22 Jun 2017
Results posted
No
Data monitoring committee
Yes

Publications

  • Wu S, Zhong L, Zheng P, Wang YG, Ding WQ, Yu Q, Hui PP, Chen HM, Gao YJ, Ge ZZ. Low-dose and same day use of polyethylene glycol improves image of video capsule endoscopy: A multi-center randomized clinical trial. J Gastroenterol Hepatol. 2020 Apr;35(4):634-640. doi: 10.1111/jgh.14899. Epub 2019 Dec 15.

    PubMed 31682026

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing polyethylene glycol and capsule endoscopy in people with Small Bowel Disease, run by Zhizheng Ge at 3 sites in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 14 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 22 Jun 2017. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

the quality of visualization of the small bowel (time frame: one week after CE procedure). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02486536, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Jun 2017.

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