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Patients Undergoing Gastric EndoscopyPhase 3NCT00742599

Phase III Controlled Clinical Study of NPO-11 in Patients Undergoing Gastric Endoscopy

A Phase 3 study testing NPO-11 in people with Patients Undergoing Gastric Endoscopy, run by Nihon Pharmaceutical Co., Ltd at 2 sites in Japan.

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

Patients who require gastric endoscopy will receive an intragastric single dose of NPO-11 20 mL. The superiority of NPO-11 to placebo as a premedication for endoscopy will be verified in a randomized, double-blind, parallel-assignment design based on the percentage of patients having no gastric peristalsis at both 2… Read more about this study

Who is it for?
Ages 20 years and older
Conditions the study is for
Patients Undergoing Gastric Endoscopy
What is being tested?
NPO-11
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
80 participants
Where
2 sitesJapan
Study dates
Sep 2008to Jul 2009
Phase
Phase 3
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 20 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Inpatients or outpatients of either sex who visit medical institutions for treatment or follow-up of confirmed or suspected upper gastrointestinal disease (symptoms) and meet the criteria (1) and (2) below will be enrolled in the study. Patients have to provide written informed consent for voluntary participation in the study.
  • Patients who need gastric endoscopy (except for endoscopy with a scope of <9 mm in diameter, emergency endoscopy and endoscopy for comprehensive medical examination)
  • Patients who are older than 20 years at the time of consent

Who cannot join

  • Patients who meet any of the following criteria will be excluded from the study. The criteria (2) to (5) will be confirmed during endoscopy. Patients who meet any of these criteria will be withdrawn from the study at the time of confirmation.
  • Patients with a history of surgery to the upper gastrointestinal tract
  • Patients with severe gastric stenosis or deformation which makes observation of gastric peristalsis difficult
  • Patients with upper gastrointestinal bleeding which requires hemostasis
  • Patients with reflux esophagitis (Los Angeles classification: B, C or D)
  • Patients with gastric or duodenal ulcers in active stage
Show all 14Show fewer
  • Patients on cancer treatment (chemotherapy or radiotherapy)
  • Patients with impaired cardiac function (NYHA functional classification: III or IV)
  • Patients with a history of shock or hypersensitivity to l-menthol or peppermint oil (mint oil)
  • Patients with a history of shock or hypersensitivity to lidocaine hydrochloride
  • Pregnant or lactating women, women of childbearing potential, or women who plan to become pregnant during the study
  • Patients who have been exposed to NPO-11
  • Patients who have received other investigational drugs within four months before consent or who are participating in other clinical studies
  • Patients otherwise ineligible for participation in the study in the investigator's or subinvestigator's opinion

Trial locations and contacts

2 sites in 1 country.

Japan2 sites
  • Study site

    Kansai

  • Study site

    Kanto

Other trials in Japan

About this study

Official title: Phase III Controlled Clinical Study of NPO-11 in Patients Undergoing Gastric Endoscopy (Randomized, Double-blind, Parallel-assignment , Placebo-controlled Study)

Patients who require gastric endoscopy will receive an intragastric single dose of NPO-11 20 mL. The superiority of NPO-11 to placebo as a premedication for endoscopy will be verified in a randomized, double-blind, parallel-assignment design based on the percentage of patients having no gastric peristalsis at both 2 minutes post-dose and the end of endoscopy (primary outcome measure).

The safety of NPO-11 will be evaluated based on adverse events and adverse drug reactions (ADRs) observed between administration and seven days after administration in comparison with the placebo group.

Being tested
NPO-11, Placebo
Keywords
Stomach Diseases
Medical subject headings
Stomach Diseases

What participants receive

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

  • NPO-11Drug

    20 ml NPO-11

  • PlaceboDrug

    20 ml NPO-11(Placebo)

Study groups in NCT00742599
Study groupRoleWhat they receive
NActive comparatorNot described
Receives: Drug: NPO-11
PPlacebo comparatorNot described
Receives: Drug: Placebo

What is being measured

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

  1. Presence or absence of gastric peristalsis (central evaluation by independent evaluator) No gastric peristalsis is defined as when patients have no gastric peristalsis at both 2 minutes post-dose and the end of endoscopy.

    Measured: each evaluation point

Secondary outcomes (3)
  1. Change in gastric peristalsis

    Measured: each evaluation point

  2. Difficulty level of intragastric observation (evaluation by investigator who performs endoscopy)

    Measured: each evaluation point

  3. Adverse events and ADRs observed between administration and 7±3 days after administration

    Measured: each evaluation point

Timeline

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

  1. First posted27 Aug 2008 (estimated)
  2. Study startSep 2008
  3. Primary completionApr 2009
  4. Study completionJul 2009

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
80 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00742599
Sponsor's protocol ID
NPO-11-01/C-01
Status last verified
Nov 2010
First submitted
25 Aug 2008
Last updated
9 Nov 2010
Results posted
No
Data monitoring committee
Yes

Publications

  • Hiki N, Kaminishi M, Yasuda K, Uedo N, Honjo H, Matsuhashi N, Hiratsuka T, Sekine C, Nomura S, Yahagi N, Tajiri H, Suzuki H. Antiperistaltic effect and safety of L-menthol sprayed on the gastric mucosa for upper GI endoscopy: a phase III, multicenter, randomized, double-blind, placebo-controlled study. Gastrointest Endosc. 2011 May;73(5):932-41. doi: 10.1016/j.gie.2010.12.013. Epub 2011 Feb 26.

    PubMed 21353674

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing NPO-11 in people with Patients Undergoing Gastric Endoscopy, run by Nihon Pharmaceutical Co., Ltd at 2 sites in Japan.

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 3 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 9 Nov 2010. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Japan. 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. Some participants in this study may receive a placebo. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

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?

Presence or absence of gastric peristalsis (central evaluation by independent evaluator) No gastric peristalsis is defined as when patients have no gastric peristalsis at both 2 minutes post-dose and the end of endoscopy. (time frame: each evaluation point). 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 NCT00742599, 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 9 Nov 2010.

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