IBDoc® Canadian User Performance Evaluation

January 23, 2018 updated by: Bühlmann Laboratories AG
The objective of the IBDoc® user performance evaluation is to demonstrate the ease-of-use of the IBDoc® calprotectin home test to allow patients with inflammatory bowel disease (IBD) to independently and correctly determine calprotectin concentration in their own stool sample. The study is based on Chapter 8 of the International Organization for Standardization (ISO) Standard, ISO 15197:2013 "In vitro diagnostic test systems - Requirements for blood-glucose monitoring systems for self-testing in managing diabetes mellitus". The study is a prospective, multicenter study, not blinded for patients, and includes a total of 61 patients.

Study Overview

Detailed Description

The patient will determine the calprotectin concentration in their own stool sample using the IBDoc® assay. For this, the patient will collect a stool sample in a standard collection tube at home. The patients will return to the clinical site with the specimen, where they will receive a standardized IBDoc® training. They will also be given opportunity to perform an IBDoc® practice test using the collected sample. The patients will then perform the full IBDoc® assay using the collected stool sample under the observation of the healthcare provider, who will assess their performance. The final result - the interpretation of the IBDoc® lateral flow assay by the CalApp® smartphone application, to yield a final μg/g calprotectin concentration in stool, will be sent to the health care provider (HCP) via the IBDoc® Web Portal.

The usability of the IBDoc® test will be evaluated according to the following factors:

- Trueness/ accuracy - the patients' ability to obtain correct results will be evaluated by comparing patients' IBDoc® results with reference measurements from the same stool sample using the BÜHLMANN fCAL® ELISA, performed at a laboratory site. For reference measurements the HCP at the clinical site will obtain 3 CALEX® Cap extracts from the patient's stool sample, which will be stored frozen and shipped to the laboratory site.

To exclude bias or inaccuracy that may arise from the analytical performance characteristics of the IBDoc® assay itself, a comparative IBDoc® assay will be performed according to the instructions for use, with the patients' samples in a laboratory. For the comparative IBDoc® measurement the HCP at the clinical site will obtain one CALEX® Valve extract from the patient's stool sample, which will be stored frozen and shipped to the laboratory site.

-IBDoc® Calprotectin test usability, clearness of obtained result, and comprehensiveness of the Instruction for Use will be assessed in the following ways:

  • Patient's questionnaire
  • HCP's questionnaire - human factors evaluation

The ability of patients to correctly collect and extract stool samples using the CALEX® Valve device will be analysed as an additional module within the IBDoc® User Performance Evaluation. The CALEX® Valve extracts obtained by the patients as part of the IBDoc® procedure will be stored frozen and shipped to the laboratory site. Calprotectin levels in the patients' CALEX® Valve extracts will be determined with the BÜHLMANN fCAL® ELISA and compared to calprotectin reference values obtained from the same stool samples by the HCP's.

Study Type

Interventional

Enrollment (Actual)

61

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Alberta
      • Edmonton, Alberta, Canada, T6G 2R7
        • Division of Gastroenterology, Department of Medicine, Faculty of Medicine University of Alberta,
    • British Columbia
      • Vancouver, British Columbia, Canada, V6Z 2K5
        • GIRI (GI Research Institute)
    • Quebec
      • Lévis, Quebec, Canada
        • Hôtel-Dieu de Lévis,

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

12 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients > 12 years
  • IBD Outpatients from a tertiary gastroenterological health care center willing to participate.
  • Patients diagnosed with Ulcerative Colitis (UC) or Crohn's disease (CD), according to classical criteria (laboratory testing and exclusion of other possible causes: complete blood count, comprehensive metabolic panel, serological markers e.g. antineutrophil cytoplasmic antibody (ANCA), inflammatory markers in blood and serum: erythrocyte sedimentation rate, C-reactive protein (CRP); fecal occult blood and fecal calprotectin assays; confirmation by endoscopy, histology of a biopsy)
  • At least 30% patients should display active disease. This can be defined by a Harvey-Bradshaw index (HBI) > 5 in CD and a clinical Mayo score > 2 in UC
  • Remaining patients in clinical remission or only mildly active disease defined by a HBI<7 in CD and a clinical Mayo score < 3 in UC with a stable medical treatment
  • In case of a prescribed endoscopy, the observation period starts >3 days after colonoscopy
  • Stable care of a treating physician
  • Signed informed consent

Exclusion Criteria:

  • Other known pathology or predisposition that may interfere with the ability to perform the measurement procedures or that may influence calprotectin levels such as acute diarrhea or chronic use of non-steroidal anti-inflammatory drugs
  • Inability to understand the procedures
  • Inability to psychologically handle potential test outcomes

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: IBD patients
IBD patients performing IBDoc calprotectin test and ease-of-use questionnaires
Patients are asked to perform a single IBDoc calprotectin home test.
Patients evaluate the ease-of-use of the test, clearness of test results and comprehensiveness of the instructions for use through a specific questionnaire implementing Likert scales.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Trueness/ accuracy of patients IBDoc® results
Time Frame: 24 hours
Patients' IBDoc results are compared to reference calprotectin values obtained by laboratory methods
24 hours
Quantifiable feedback from the enrolled patients about the ease-of-use of the test
Time Frame: 24 hours
Ease-of-use of the test, clearness of test results and comprehensiveness of the instructions for use is assessed in a questionnaire, with 12 statements, scored on a 1-to-5 Likert scale, with one (1) indicating "I strongly disagree" and five (5) "I strongly agree". The mean and standard deviation of scores obtained from all participating patients will be evaluated for each statement.
24 hours
Quantifiable feedback from healthcare providers
Time Frame: 24 hours
Quantifiable feedback from the healthcare providers about the ability of the patients to correctly perform the IBDoc® assay. Assessment will be made through a questionnaire with five (5) statements, scored on a 1-to-5 Likert scale, with one (1) indicating "I strongly disagree" and five (5) "I strongly agree". The mean and standard deviation of scores obtained from all participating healthcare providers will be evaluated for each statement.
24 hours

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Greg Rosenfeld, MD, GIRI (GI Research Institute), Vancouver, Canada

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

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 5, 2017

Primary Completion (Actual)

August 22, 2017

Study Completion (Actual)

August 22, 2017

Study Registration Dates

First Submitted

January 17, 2018

First Submitted That Met QC Criteria

January 17, 2018

First Posted (Actual)

January 23, 2018

Study Record Updates

Last Update Posted (Actual)

January 24, 2018

Last Update Submitted That Met QC Criteria

January 23, 2018

Last Verified

January 1, 2018

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

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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