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An Open Label Trial of Duloxetine in the Treatment of Irritable Bowel Syndrome and Comorbid Generalized Anxiety Disorder

NCT00961298 · Status: COMPLETED · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 17

Last updated 2014-07-09

Study results available
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Summary

The investigators propose to evaluate the effectiveness of duloxetine in treating subjects with both Irritable Bowel Syndrome (IBS) and Generalized Anxiety Disorder (GAD). The investigators hypothesize that duloxetine as a single therapeutic agent will effectively target pain and other core symptoms of IBS as well as GAD in this patient population with both conditions.

Conditions

  • Irritable Bowel Syndrome
  • Generalized Anxiety Disorder

Interventions

DRUG

Duloxetine

All subjects will receive single-blind placebo for the first two weeks, and then duloxetine for the next 12 weeks, followed by an up to 2 week taper off of the duloxetine. After 2 weeks of placebo daily, subjects will receive 30 mg per day of duloxetine for two weeks, then titrated up to 60 mg per day of duloxetine at week 2. A dosage decrease to 30 mg daily is permittable after week 2. This will be a flexible dose study with doses of duloxetine progressively increasing at weeks 4 (90 mg daily) and 6 (120 mg daily) in conjunction with CGI-I scores, to reach 120 mg daily or the maximum tolerated dose, if less than 120 mg daily at Week 12. There will be a post-taper follow up appointment at Week 14. Of Note: Amendment IRB Approved 6/14/11 Study Ending at Week 12 with removal of Week 14 visit as part of study.

Sponsors & Collaborators

  • West Penn Allegheny Health System

    lead OTHER

Principal Investigators

  • Alicia J Kaplan, MD · West Penn Allegheny Health System

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
SINGLE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2009-09-30
Primary Completion
2011-12-31
Completion
2011-12-31

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00961298 on ClinicalTrials.gov