A Multi-Center Trial to Determine the Safety and Efficacy of LX1033 in Subjects With Diarrhea-Predominant Irritable Bowel Syndrome

NCT ID: NCT01494233

Last Updated: 2015-03-23

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

373 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-02-29

Brief Summary

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The objective of this study is to evaluate the safety and efficacy of LX1033 over a range of dose levels in subjects with diarrhea-predominant Irritable Bowel Syndrome (IBS).

Detailed Description

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Conditions

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Irritable Bowel Syndrome

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Low dose

500 mg LX1033 two times daily

Group Type EXPERIMENTAL

250 mg LX1033 tablets

Intervention Type DRUG

250 mg LX1033 tablets administered orally

Mid dose

500 mg LX1033 three times daily

Group Type EXPERIMENTAL

250 mg LX1033 tablets

Intervention Type DRUG

250 mg LX1033 tablets administered orally

High dose

1000 mg LX1033 two times daily

Group Type EXPERIMENTAL

250 mg LX1033 tablets

Intervention Type DRUG

250 mg LX1033 tablets administered orally

Placebo

Matching placebo dosing

Group Type PLACEBO_COMPARATOR

Placebo tablet

Intervention Type DRUG

Matching placebo tablet administered orally

Interventions

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250 mg LX1033 tablets

250 mg LX1033 tablets administered orally

Intervention Type DRUG

Placebo tablet

Matching placebo tablet administered orally

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Male and female subjects, aged 18 to 70 years, with diarrhea-predominant IBS (IBS-D) with symptom onset at least 6 months prior to diagnosis
* Two or more days per week with at least one stool with a consistency of Type 6 or 7 (Bristol Stool Form Scale)
* Weekly average of worst abdominal pain in past 24 hours score of greater than or equal to 3.0 using a 0-10 point scale
* Ability to provide written, informed consent

Exclusion Criteria

* Inability to discontinue any current drug therapy for IBS, with the exception of bulking agents. Subjects will be allowed up to 2 doses of loperamide per week as rescue medication.
* Subjects who score severe abdominal pain (rated 7 or higher) 5 or more days per week
* Concomitant use of opioid analgesic drugs or drugs that affect bowel motility
* Any abnormalities or conditions deemed by the investigator as clinically significant
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Lexicon Pharmaceuticals

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Sumen Wason, MD

Role: STUDY_DIRECTOR

Lexicon Pharmaceuticals, Inc.

Locations

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Lexicon Investigational Site

Huntsville, Alabama, United States

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Tempe, Arizona, United States

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Tucson, Arizona, United States

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Tucson, Arizona, United States

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Little Rock, Arkansas, United States

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North Little Rock, Arkansas, United States

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Anaheim, California, United States

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Encinitas, California, United States

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Los Angeles, California, United States

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Oakland, California, United States

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Orange, California, United States

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San Diego, California, United States

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Santa Monica, California, United States

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Tustin, California, United States

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Westlake Village, California, United States

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Littleton, Colorado, United States

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Littleton, Colorado, United States

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Wheat Ridge, Colorado, United States

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Waterbury, Connecticut, United States

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Boynton Beach, Florida, United States

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Bradenton, Florida, United States

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Brooksville, Florida, United States

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DeLand, Florida, United States

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Jacksonville, Florida, United States

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Kissimmee, Florida, United States

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Lauderdale Lakes, Florida, United States

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Maitland, Florida, United States

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Orlando, Florida, United States

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Port Orange, Florida, United States

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Tampa, Florida, United States

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Boise, Idaho, United States

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Meridian, Idaho, United States

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Addison, Illinois, United States

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Chicago, Illinois, United States

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Rockford, Illinois, United States

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Wichita, Kansas, United States

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Bowling Green, Kentucky, United States

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Lexington, Kentucky, United States

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Chevy Chase, Maryland, United States

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Towson, Maryland, United States

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Brockton, Massachusetts, United States

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Chesterfield, Michigan, United States

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Kalamazoo, Michigan, United States

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Troy, Michigan, United States

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Jackson, Mississippi, United States

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Mexico, Missouri, United States

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Billings, Montana, United States

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Berlin, New Jersey, United States

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Albuquerque, New Mexico, United States

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Great Neck, New York, United States

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Great Neck, New York, United States

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New York, New York, United States

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Boone, North Carolina, United States

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Cary, North Carolina, United States

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Chapel Hill, North Carolina, United States

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Greensboro, North Carolina, United States

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High Point, North Carolina, United States

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Raleigh, North Carolina, United States

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Winston-Salem, North Carolina, United States

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Fargo, North Dakota, United States

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Kettering, Ohio, United States

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Lima, Ohio, United States

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Mentor, Ohio, United States

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Wadsworth, Ohio, United States

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Norman, Oklahoma, United States

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Oklahoma City, Oklahoma, United States

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Eugene, Oregon, United States

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Mt. Pleasant, South Carolina, United States

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Chattanooga, Tennessee, United States

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Austin, Texas, United States

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El Paso, Texas, United States

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Lake Jackson, Texas, United States

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Plano, Texas, United States

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San Antonio, Texas, United States

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Clinton, Utah, United States

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Logan, Utah, United States

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Ogden, Utah, United States

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Sandy City, Utah, United States

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West Jordan, Utah, United States

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Lynchburg, Virginia, United States

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Virginia Beach, Virginia, United States

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Countries

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United States

References

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Delgado-Herrera L, Lasch K, Zeiher B, Lembo AJ, Drossman DA, Banderas B, Rosa K, Lademacher C, Arbuckle R. Evaluation and performance of a newly developed patient-reported outcome instrument for diarrhea-predominant irritable bowel syndrome in a clinical study population. Therap Adv Gastroenterol. 2017 Sep;10(9):673-687. doi: 10.1177/1756283X17726018. Epub 2017 Aug 24.

Reference Type DERIVED
PMID: 28932269 (View on PubMed)

Other Identifiers

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LX1033.201

Identifier Type: OTHER

Identifier Source: secondary_id

LX1033.1-201-IBS

Identifier Type: -

Identifier Source: org_study_id

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