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A Study to Assess Treatment Efficacy and Safety of Rifaximin DR Twice Daily in Subjects with Active Crohn's Disease for 52 weeks.

Phase 1
Conditions
Treatment of active Crohn’s disease
MedDRA version: 19.0Level: LLTClassification code 10013099Term: Disease CrohnsSystem Organ Class: 100000004856
Therapeutic area: Diseases [C] - Digestive System Diseases [C06]
Registration Number
EUCTR2014-001645-24-DE
Lead Sponsor
Salix Pharmaceuticals, Inc.
Brief Summary

Not available

Detailed Description

Not available

Recruitment & Eligibility

Status
ot Recruiting
Sex
All
Target Recruitment
80
Inclusion Criteria

- Subject is 18 years of age at screening.
- Subject is male or female.
- Females of childbearing (reproductive) potential must have a negative serum pregnancy test at screening and agree to use an acceptable method of contraception throughout their participation in the study.
- Subject has moderate, non-fistulizing Crohn's disease in the ileum and/or colon as defined by a CDAI score of = 220 and = 450 points prior to randomization; and a SESCD score of =7. The SES-CD score will be calculated using the baseline ileocolonoscopy performed during the Screening Period.
- During the Screening Period, the subject has the following average abdominal pain and average number of liquid/very soft stools:
? An average daily score of > 1.5 for abdominal pain (from CDAI Item 2), and
? An average daily count of > 1.5 for liquid/very soft stools (from CDAI Item 1).
- Liquid/very soft stool will be defined as a consistency of Type 6 or Type 7 on the BSFS.
- Subject is capable of understanding the requirements of the study, is willing to comply with all study procedures, and demonstrates ability to comply with the study electronic systems (including access to Wi-Fi) required to record Crohn's disease symptoms and CDAI components.
- Subject understands the language of the informed consent form (ICF), and is capable and willing to sign the informed consent form.
Are the trial subjects under 18? no
Number of subjects for this age range:
F.1.2 Adults (18-64 years) yes
F.1.2.1 Number of subjects for this age range 500
F.1.3 Elderly (>=65 years) yes
F.1.3.1 Number of subjects for this age range 160

Exclusion Criteria

-Subject has a diagnosis of ulcerative or indeterminate colitis.
-Subject has a diagnosis of Celiac Disease.
-Subject has had bowel surgery within 12 weeks prior to screening
and/or has surgery planned or deemed likely for Crohn's disease during the study period.
-Subject has had more than one segmental colonic resection.
-Subject has presence of an ileostomy or colostomy.
-Subject has known fixed symptomatic stenosis/stricture of the small or large bowel.
-Subject has had more than 3 small bowel resections, or symptoms associated with short bowel syndrome.
-Subject has current evidence of peritonitis.
-Subject had history or evidence of colonic mucosal dysplasia.
-Subject had history or evidence of adenomatous colonic polyps that have not been removed.
-Subject has evidence of hepatic dysfunction, viral hepatitis, or current or chronic history of liver disease including non-alcoholic steatohepatitis (NASH) as well as liver function tests (LFTs) with values = 1.5 times the upper limit of normal (ULN) for any of the following LFTs: alanine aminotransferase (ALT), aspartate aminotransferase
(AST), alkaline phosphatase, or bilirubin at Screening.
-Subject has diabetes (Type 1 or 2) that is poorly controlled in the opinion of the investigator, or has had an HbA1c 12% within 3 months prior to Screening or at the Screening Visit
-Subject has history of the following conditions per Diagnostic and Statistical Manual of Mental Disorders, 5th edition:
a major psychiatric disorder (including major depression or psychosis) alcohol or substance abuse within 24 months prior to signing the informed consent
-Subject has a history of seizure disorders.
-Subject has renal disease manifested by elevations in serum creatinine and/or blood urea nitrogen concentrations of =1.5 times the ULN.
-Subject has unstable cardiovascular or pulmonary disease, categorized by a worsening in the disease condition that requires a change in treatment or medical care within 30 days prior to randomization.
-Subject has an active malignancy within the last 5 years.
-Subject has donated blood or blood products within the past 4 weeks prior to randomization.
-Subject has known varicella, herpes zoster, or other severe viral infection within 6 weeks of randomization.
-Subject has known human immunodeficiency virus (HIV) infection.
-Subject has a positive stool test for Yersinia enterocolitica, Campylobacter jejuni, Salmonella, Shigella, ovum and parasites, and/or Clostridium difficile.
-Subject has a history of tuberculosis infection and/or has received treatment for a tuberculosis infection. If subject has had a previous positive test for tuberculosis antigen then they must have a current negative chest X-ray to be eligible.
-Subject used any biologic within 12 weeks prior to randomization.
-Subject is unwilling to be tapered off corticosteroids by Week 8 of the Treatment Period or the subject is known by the Investigator to be steroid dependent.
-Subject used cyclosporine, tacrolimus, sirolimus, mycophenolate mofetil, or similar drugs within 8 weeks prior to randomization.
-Subject used any oral or intravenous antibiotic including rifaximin, rifampin or any drugs in the rifamycin group, within 4 weeks prior to the screening visit.
-Subject had rectal administration of 5-ASA or corticosteroid enemas/foams/suppositories within 2 weeks prior to screening visit.
-Subjects used tube or enteral feeding, an elemental diet, or parenteral alimentation wit

Study & Design

Study Type
Interventional clinical trial of medicinal product
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
Secondary Outcome Measures
NameTimeMethod
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