Endpoint Determination Study Protocol

August 2, 2024 updated by: Biomerica

Endpoint Determination Study for An Antibody Guided Dietary Restriction Trial Using Biomerica InFoods® IBS Test in Patients With a Previous Diagnosis of Irritable Bowel Syndrome (IBS)

This study is designed to evaluate the most applicable endpoints for evaluation of the Biomerica InFoods® IBS product.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The objective of this Endpoint Determination Study is to address key elements regarding a proposed larger clinical study design:

  1. Comparing different potential primary outcome measures
  2. Demonstrating that an exclusionary diet as determined by elevated IgG levels using the Biomerica InFoods® IBS Test is associated with alleviation of IBS symptoms
  3. Demonstrating the ability to mask the sham diet
  4. Demonstrating the safety of the exclusionary diet

Subjects' diets will be based on the results of the Biomerica, InFoods® IBS Test.

Immunoglobulin G (IgG) levels above a certain threshold are considered a positive response against a specific food or foods. It is expected that severity of symptoms of IBS will decrease when foods that generate a positive immune response in the Biomerica InFoods® IBS test are eliminated from the diet of the IBS patient.

The Endpoint Determination Study format will be a double-blinded randomized controlled clinical study enrolling subjects at two trial sites within the United States and designed to evaluate the use of IgG antibody guided dietary restrictions, based on the Biomerica InFoods® IBS Test, in the management of patients diagnosed with Irritable Bowel Syndrome (IBS).

The 2 sites will enroll approximately equal numbers of subjects. The target for each site is a minimum of 30 subjects in each classification: IBS with diarrhea [IBS-D], IBS with constipation [IBS-C] and IBS mixed [IBS-M] for a minimum of 90 patients per site, 180 total subjects for this study.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
556

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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

  • United States
    • Arizona
      • Scottsdale, Arizona, United States, 85259
        • Mayo Clinic
    • Florida
      • Jacksonville, Florida, United States, 32224
        • Mayo Clinic
    • Illinois
      • Wauconda, Illinois, United States, 60084
        • Family Medicine Specialists
    • Massachusetts
      • Boston, Massachusetts, United States, 02215
        • Beth Israel Deaconess Medical Center
    • Michigan
      • Ann Arbor, Michigan, United States, 48109-5362
        • University of Michigan Health System
    • Texas
      • Houston, Texas, United States, 77030
        • Houston Methodist Research Institute
      • Houston, Texas, United States, 77030
        • UT Health
      • San Antonio, Texas, United States, 78229
        • Gastroenterology Research of San Antonio

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

17 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • 21 years old or older.
  • Able to read and understand English.
  • Willing and able to sign the informed consent.
  • Have access to a computer and/or cell phone access for Electronic Data Capture (EDC)
  • Meets Rome IV Diagnostic Criteria for IBS
  • Willing to follow a food elimination die
  • Well controlled diabetic patients; A1C <7.5 and stable medication (>3 months, NOT Metformin
  • Score between ≥ 3 and <7.5 on the Abdominal Pain Intensity Assessment (IBS_API) based on a weekly average of worst daily (in past 24 hours) abdominal pain on a 0 to 10 point scale.
  • Patients who are on stable (> 3 months) doses of medications or treatments for their IBS (e.g., probiotics, fiber, Viberzi, Linzess, Amitiza, Alosetron, Plecanatide, anticholinergics, antidepressants, Zofran bile acid sequestrants, or anti-diarrheals) will be allowed to continue their medications as long as no change in treatment is planned for the duration of the study and no dose adjustment is made during the duration of the study.
  • A positive IgG antibody response for at least one food in the Biomerica InFoods® IBS panel

Exclusion Criteria:

  • Unable to provide consent.
  • Cannot use EDC system due to no cell phone and no computer access
  • Does not qualify for a diagnosis of IBS by IV Diagnostic Criteria
  • Diagnosed IBS, but an IBS-API score of <3.0 and >7.5
  • Pregnant or breastfeeding
  • Patients with diabetes currently on Metformin
  • Patients who have used Rifaximin in the past 3 months
  • Patients engaged in another type of diet therapy, i.e. FODMAP
  • Patients which physicians are anticipating starting a new medication, change in dosage, diet or other treatment for IBS during the study
  • Chronic pain from other conditions besides IBS
  • Current or previous use of narcotic medications within past 3 months
  • History of prior GI surgery except for cholecystectomy or appendectomy.
  • History with any of the following:

Gastroparesis, Uncontrolled GERD, Anorexia/bulimia Celiac disease Crohn's disease, Ulcerative Colitis, Abdominal/gastro cancer(s), Malabsorption syndrome(s).

  • History of any other relevant inter-current medical conditions that could interfere with their participation in the study or the objectives of the study
  • History of psychosis, schizophrenia, mania, or major psychiatric illness needing hospitalization within the past 6 months

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Group 1 - True Food Elimination Diet
Group 1 (experimental group): Subjects will be given an elimination diet based upon foods with a positive antibody profile in the Biomerica InFoods® IBS test. The elimination diet will also exclude any and all foods to which the subject has a known IgE allergy and foods the subject already currently eliminates.
Other: Food Elimination Diet
Subjects asked to participate in a food elimination diet, either True or Sham to evaluate the effects on their IBS symptoms
Sham Comparator: Group 2 - Sham Food Elimination Diet
Group 2 (control group): Subjects will be given a "Sham" elimination diet. The sham diet will eliminate the same number of foods but none of the actual foods to which the patient had a positive antibody profile in the Biomerica InFoods® IBS test. The sham diet will also eliminate any and all foods to which the subject has a known IgE allergy and foods the subject already currently eliminates.
Other: Food Elimination Diet
Subjects asked to participate in a food elimination diet, either True or Sham to evaluate the effects on their IBS symptoms

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change in the IBS-API - Abdominal Pain Intensity. The IBS-API is being assessed daily from enrollment (baseline) to study completion; total 10 weeks
Time Frame: Daily for 10 weeks
Abdominal pain intensity will be measured daily using an 11-point (0-10) numeric rating scale (NRS) that asks subjects to rate their worst abdominal pain over the past 24-hours.
Daily for 10 weeks

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Biomerica

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: William D Chey, MD, University of Michigan
  • Principal Investigator: Anthony J Lembo, MD, Beth Israel Deaconess Medical Center (Harvard)

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 21, 2018

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 31, 2021

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2021

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 20, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 7, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 9, 2018

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 5, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 2, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2024

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • EPT-InF24-001

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

It is not yet known if there will be a plan to make IPD available.

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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