Colon Staining Efficacy of Single Oral Doses of Methylene Blue MMX (CRO-11-108)

January 8, 2021 updated by: Cosmo Technologies Ltd

Colon Staining Efficacy of Single Oral Doses of Methylene Blue MMX® Modified Release Tablets Administered to Patients Undergoing Colonoscopy

To describe and evaluate the mucosal staining efficacy of Methylene Blue MMX® tablets after total oral doses of 150 or 200 mg in patients undergoing a full colonoscopy for various reasons.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Objectives:

To describe and evaluate the mucosal staining efficacy of Methylene Blue MMX® tablets after total oral doses of 150 or 200 mg in patients undergoing a full colonoscopy for various reasons.

Primary end-point(s):

To evaluate the mucosal staining efficacy of Methylene Blue MMX® tablets after total oral doses of 150 or 200 mg.

Secondary end-point(s):

Bowel cleansing quality evaluated according to the validated Boston Bowel Preparation Scale (BBPS) after intake of 150 or 200 mg of Methylene Blue MMX® tablets during the intake of the bowel cleansing preparation.

To collect data about safety and tolerability of Methylene Blue MMX® tablets after administration of single oral doses of 150 or 200 mg.

Methodology:

Open label, staining efficacy exploratory study.

Study Type

Interventional

Enrollment (Actual)

114

Phase

  • Phase 2

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

14 years to 66 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Sex: males and females;
  2. Age:18 to 70 years;
  3. Colonoscopy: out-patients with indication for colonoscopy including faecal occult blood test positive colorectal cancer screening, polypectomy follow-up and inflammatory bowel disease check;
  4. Contraception: either sterile subjects or subjects practising at least one reliable methods of contraception or in post-menopausal status for at least 1 year;
  5. Informed Consent: signed written informed consent prior to inclusion in the study.

Exclusion Criteria:

  1. Pregnancy: pregnant or lactating women or at a risk of becoming pregnant;
  2. Allergy: known or suspected hypersensitivity to the active principle and/or formulations' ingredients; history of anaphylaxis to drugs or allergic reactions in general;
  3. Diseases: known or suspected gastrointestinal obstruction or perforation, toxic megacolon, major colonic resection, inflammatory bowel diseases in active phase, severe diverticulosis with diverticulitis, heart failure (Class III or IV), serious cardiovascular disease, severe liver failure, end-stage renal insufficiency, any other relevant disease that might interfere with the aim of the study.
  4. Comprehension: inability to comprehend the full nature and purpose of the study and unwillingness to co-operate with the Investigator and to comply with the requirements of the entire study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: 150 mg Methylene Blue-MMX tablets
take 6 x 25mg Methylene Blue-MMX tablets equivalent to 150 mg
Methylene Blue MMX 25 mg modified release tablets administered with a full dose regimen of a 4-L PEG-based bowel cleansing preparation.
Active Comparator: 200 mg Methylene Blue-MMX tablets
take 8 x 25mg Methylene Blue-MMX tablets equivalent to 200 mg
Methylene Blue MMX 25 mg modified release tablets administered with a full dose regimen of a 4-L PEG-based bowel cleansing preparation.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Evaluation of Mucosal Staining Efficacy
Time Frame: One day- mucosal staining efficacy is assessed during the colonoscopy procedure

Mucosal staining efficacy of Methylene Blue MMX tablets after total oral doses of 150 or 200 mg.

Methylene blue staining efficacy was assessed by scoring the observed percentage of staining as reported below for each colon region (AC, TC, DC, RES) 0 - no staining

  1. - traces (poor traces in colon mucosa)
  2. - detectable (at least the 25% of colon mucosa is stained)
  3. - acceptable (at least the 50% of colon mucosa is stained)
  4. - good (at least the 75% of colon mucosa is stained)
  5. - over stained ( the 100% of the colon mucosa is over stained) After scoring (SC) separately each colonic segment, the total staining score (TSC) was also calculated and the number of regions with an SC>2 (NSA) was determined.

For each patient, the best effective TSC was set at 16, when SC=4 was detected in all 4 regions. SC=5 detected in any region and TSC>16, both denoting an overstaining of the mucosa, were defined as suboptimal results in colon staining.

One day- mucosal staining efficacy is assessed during the colonoscopy procedure

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Safety and Tolerability of Methylene Blue MMX as Determined by Vital Signs (Blood Pressure)
Time Frame: until study completion (until 2 days after dose)
safety and tolerability of Methylene Blue MMX reviewed by incidence of treatment emergent by measurement of vital signs (blood pressure)
until study completion (until 2 days after dose)
Safety and Tolerability of Methylene Blue MMX as Determined by AEs
Time Frame: Until study completion (until 2 days after dose)
Safety and tolerability of Methylene Blue MMX® tablets after administration of total oral doses of 150 or 200 mg.AEs were assessed throughout the study.
Until study completion (until 2 days after dose)
Safety and Tolerability of Methylene Blue MMX as Determined by Heart Rate
Time Frame: until study completion (until 2 days after dose)
incidence of treatment emergent by measurement of vital signs (heart rate) to determine Safety and Tolerability of Methylene Blue MMX
until study completion (until 2 days after dose)
Safety and Tolerability of Methylene Blue MMX as Determined by Vital Signs (Oxygen Saturation in Peripheral Blood)
Time Frame: until study completion (until 2 days after dose)
safety and tolerability of Methylene Blue MMX reviewed by incidence of treatment emergent by measurement of vital signs (Oxygen Saturation in peripheral blood)
until study completion (until 2 days after dose)
Safety and Tolerability of Methylene Blue MMX as Determined Body Weight.
Time Frame: until study completion (until 2 days after dose)
safety and tolerability of Methylene Blue MMX in relation to incidence of treatment emergent by body weight.
until study completion (until 2 days after dose)
Bowel Cleansing Quality-Boston Bowel Preparation Score
Time Frame: One day- bowel cleansing quality is assessed during the colonoscopy procedure

Bowel cleansing quality evaluated according to the validated Boston Bowel Preparation Scale (BBPS).

Colon was divided into 4 target regions: ascending colon (AC), transverse colon (TC), descending colon (DC) and rectosigmoid (RES). Methylene blue staining efficacy was assessed scoring the observed staining percentage as reported below for each colon region:

0 - no staining

  1. - traces (poor traces in colon mucosa)
  2. - detectable (at least the 25% of colon mucosa is stained)
  3. - acceptable (at least the 50% of colon mucosa is stained)
  4. - good (at least the 75% of colon mucosa is stained)
  5. - over stained ( the 100% of the colon mucosa is over stained)
One day- bowel cleansing quality is assessed during the colonoscopy procedure

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Collaborators

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

May 2, 2011

Primary Completion (Actual)

January 16, 2012

Study Completion (Actual)

January 16, 2012

Study Registration Dates

First Submitted

August 22, 2017

First Submitted That Met QC Criteria

September 18, 2017

First Posted (Actual)

September 19, 2017

Study Record Updates

Last Update Posted (Actual)

January 28, 2021

Last Update Submitted That Met QC Criteria

January 8, 2021

Last Verified

January 1, 2021

More Information

Terms related to this study

Other Study ID Numbers

  • CB-17-01/03

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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