Study to Evaluate the Efficacy, Safety, and Tolerability of BOS-589 in the Treatment of Patients With Diarrhea-predominant Irritable Bowel Syndrome (IBS-D)

NCT ID: NCT03977155

Last Updated: 2021-06-07

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

133 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-06-04

Study Completion Date

2020-05-06

Brief Summary

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This study is being conducted to evaluate in participants with diarrhea-predominant Irritable Bowel Syndrome (IBS-D) the abdominal pain response to BOS-589 after 4 weeks of treatment and to evaluate the overall safety and tolerability of BOS-589 in the treatment of IBS-D during 4 weeks of treatment, relative to placebo (PBO).

Detailed Description

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Conditions

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Diarrhea-predominant Irritable Bowel Syndrome

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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High dose of BOS-589

Participants will receive a high dose of BOS-589 orally twice a day (BID).

Group Type EXPERIMENTAL

BOS-589

Intervention Type DRUG

oral tablets

Low dose of BOS-589

Participants will receive a low dose of BOS-589 orally BID.

Group Type EXPERIMENTAL

BOS-589

Intervention Type DRUG

oral tablets

Placebo

Participants will receive matching placebo orally BID.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

oral tablets

Interventions

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BOS-589

oral tablets

Intervention Type DRUG

Placebo

oral tablets

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Participant meets the diagnosis of diarrhea-predominant IBS (IBS-D) subtype based on Rome IV diagnostic criteria within 3 months prior to randomization. On days when the participant experiences IBS symptoms

* At least 25% of stools are loose or watery; and
* Fewer than 25% of stools are hard.
* Recurrent abdominal pain occurring, on average, at least 1 day per week and associated with 2 or more of the following:

* Related to defecation;
* Associated with a change in frequency of bowel movements;
* Associated with a change in form (appearance) of stool.
* Over the week prior to randomization, the participant has

* An average of worst abdominal pain (WAP) scores in the prior 24 hours of 4.0 to 8.0 on a 0 to 10 numerical rating scale;
* An average daily Bristol Stool Form Scale (BSFS) score ≥ 5.0 (and at least 5 days with a BSFS score ≥ 5.0;
* An average daily IBS-Global Scale (IBS-GS) score of ≥ 2.0.
* Participant must undergo or previously have undergone (a) an appropriate evaluation for their IBS symptoms, including an evaluation for organic/structural etiologies (if in the presence of alarm symptoms); and (b) age-appropriate screening for colorectal cancer, if applicable.
* Participant is negative for serum tissue transglutaminase immunoglobulin A antibody (tTG-IgA) plus has evidence of detectable serum IgA within the normal reference range.

Exclusion Criteria

* At the time of screening, participant has a diagnosis of an IBS subtype other than IBS-D, based on Rome IV criteria.
* Participant has a history of inflammatory or immune-mediated gastrointestinal (GI) disorders including (but not limited to) inflammatory bowel disease (i.e., Crohn's disease, ulcerative colitis, microscopic colitis, and celiac disease).
* Participant has had an episode of diverticulitis within 3 months prior to Screening.
* Participant has a history of intestinal obstruction, stricture, toxic megacolon, GI perforation, fecal impaction, gastric banding, bariatric surgery, adhesions, ischemic colitis, or impaired intestinal circulation (e.g., aortoiliac occlusive disease).
* Participant has any of the following surgical history:

* Cholecystectomy with any history of post-cholecystectomy biliary tract pain;
* Any abdominal surgery within the 3 months prior to Screening;
* Major gastric, esophageal, hepatic, pancreatic, or intestinal surgery (appendectomy, hemorrhoidectomy, or polypectomy greater than 3 months post-surgery are allowed).
* Confirmed alanine aminotransferase (ALT) \> 2 upper limit of normal (ULN)
* Confirmed total bilirubin \> ULN, unless the participant has a documented history of Gilbert's syndrome
* Evidence of active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection or Human immunodeficiency virus (HIV)-1 or HIV-2 antibody positive
* Evidence of HCV infection based on a positive HCV antibody screen (Participants who have been successfully treated for HCV are eligible if an undetectable HCV viral load at least 6 months after completion of treatment can be demonstrated.)
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Boston Pharmaceuticals

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Pinnacle Research Group

Anniston, Alabama, United States

Site Status

Clinical Research Associates

Huntsville, Alabama, United States

Site Status

Synexus Clinical Research US, Inc. - East Valley Family Physicians, PLC

Chandler, Arizona, United States

Site Status

Synexus Clinical Research US, Inc. - Phoenix Southeast

Chandler, Arizona, United States

Site Status

Synexus Clinical Research US, Inc. - Desert Clinical Research, LLC

Mesa, Arizona, United States

Site Status

Synexus Clinical Research US, Inc. - Central Arizona Medical Associates, PC

Mesa, Arizona, United States

Site Status

Hope Research Institute LLC

Peoria, Arizona, United States

Site Status

Elite Clinical Studies

Phoenix, Arizona, United States

Site Status

Synexus Clinical Research US, Inc. - Tatum Highlands Medical Associates, PLLC

Phoenix, Arizona, United States

Site Status

Hope Research Institute LLC

Phoenix, Arizona, United States

Site Status

Arkansas Gastroenterology

North Little Rock, Arkansas, United States

Site Status

Synexus Clinical Research US, Inc.

Carlsbad, California, United States

Site Status

Paragon Rx Clinical, Inc.

Garden Grove, California, United States

Site Status

eStudySite

La Mesa, California, United States

Site Status

Grossmont Center For Clinical Research

La Mesa, California, United States

Site Status

Clinical Trials Research

Sacramento, California, United States

Site Status

Research and Education Inc

San Diego, California, United States

Site Status

Precision Research Institute

San Diego, California, United States

Site Status

Shahram Jacobs MD Inc

Sherman Oaks, California, United States

Site Status

Millennium ClinicalTrials

Thousand Oaks, California, United States

Site Status

Advanced Rx Clinical Research

Westminster, California, United States

Site Status

Chase Medical Research LLC

Waterbury, Connecticut, United States

Site Status

PAB Clinical Research-ClinEdge-PPDS

Brandon, Florida, United States

Site Status

Nature Coast Clinical Research LLC - ERN-PPDS

Inverness, Florida, United States

Site Status

Mayo Clinic

Jacksonville, Florida, United States

Site Status

Health Awareness Inc

Jupiter, Florida, United States

Site Status

Suncoast Research Group LLC - ERN-PPDS

Miami, Florida, United States

Site Status

Ormond Medical Arts Pharmaceutical

Ormond Beach, Florida, United States

Site Status

Precision Clinical Research, LLC

Sunrise, Florida, United States

Site Status

Northwest Clinical Trials-ClinEdge-PPDS

Boise, Idaho, United States

Site Status

Synexus Clinical Research US, Inc. - Allaw

Evansville, Indiana, United States

Site Status

Boston Clinical Trials Inc

Boston, Massachusetts, United States

Site Status

West Michigan Clinical Research

Wyoming, Michigan, United States

Site Status

Sundance Clinical Research

St Louis, Missouri, United States

Site Status

Quality Clinical Research - ClinEdge - PPDS

Omaha, Nebraska, United States

Site Status

Albuquerque Clinical Trials Inc - BTC - PPDS

Albuquerque, New Mexico, United States

Site Status

NY Scientific

Brooklyn, New York, United States

Site Status

Peters Medical Research, LLC

High Point, North Carolina, United States

Site Status

PMG Research of Raleigh, LLC

Raleigh, North Carolina, United States

Site Status

Synexus Clinical Research US, Inc.

Akron, Ohio, United States

Site Status

Hometown Urgent Care and Research

Cincinnati, Ohio, United States

Site Status

Synexus Clinical Research US, Inc.

Columbus, Ohio, United States

Site Status

Hometown Urgent Care and Research

Dayton, Ohio, United States

Site Status

Founders Research Corporation

Philadelphia, Pennsylvania, United States

Site Status

Preferred Primary Care Physicians

Uniontown, Pennsylvania, United States

Site Status

Safe Harbor Clinical Research

East Providence, Rhode Island, United States

Site Status

Synexus Clinical Research US, Inc.

Anderson, South Carolina, United States

Site Status

Pledmont Research Partners LLC

Fort Mill, South Carolina, United States

Site Status

Synexus Clinical Research US, Inc.

Greer, South Carolina, United States

Site Status

WR-ClinSearch, LLC

Chattanooga, Tennessee, United States

Site Status

New Phase Research & Development

Knoxville, Tennessee, United States

Site Status

L12 Clinical Research

Dallas, Texas, United States

Site Status

Synexus Clinical Research US, Inc.

Dallas, Texas, United States

Site Status

Southwest Clinical Trials

Houston, Texas, United States

Site Status

Quality Research Inc.

San Antonio, Texas, United States

Site Status

Advanced Research Institute

Ogden, Utah, United States

Site Status

Blue Ridge Medical Research

Lynchburg, Virginia, United States

Site Status

Clinical Research Partners LLC

Richmond, Virginia, United States

Site Status

Countries

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United States

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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BOS-589-201

Identifier Type: -

Identifier Source: org_study_id

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