Milnacipran (Savella) in Irritable Bowel Syndrome (IBS)

Irritable Bowel Syndrome Clinical Trial

Official title:

A Randomized, Double-Blind, Placebo-Controlled Study to Assess the Efficacy of Milnacipran in the Treatment of Irritable Bowel Syndrome

Clinical Trial Details — Status: Terminated

Administrative data

• NCT number: NCT01471379
• Other study ID #: 11-1105-UNC
• Status: Terminated
• Phase: Phase 2
• First received: November 10, 2011
• Last updated: November 5, 2013
• Start date: April 2012
• Est. completion date: February 2013

Study information

• Verified date: November 2013
• Source: University of North Carolina, Chapel Hill
• Contact: n/a
• Is FDA regulated: No
• Health authority: United States: Food and Drug AdministrationUnited States: Institutional Review Board
• Study type: Interventional

Clinical Trial Summary

Purpose: The investigators are proposing to examine the use of Savella® (Milnacipran) for treating irritable bowel syndrome (IBS) in women.

Participants: Eligible participants will meet the Rome III diagnostic criteria for IBS.

Procedures: This study will observe patients treated with Savella® as well as patients treated with a placebo (pill with no active drug). The investigators will monitor and compare several patient and symptom related outcomes, as well as evaluate health related quality of life, psychological distress and related psychosocial measures to determine if the addition of Savella® improves clinical pain response as well as secondary outcomes including quality of life.

Description:

Irritable bowel syndrome (IBS) is a common functional gastrointestinal disorder characterized primarily by abdominal pain associated with bowel dysfunction. Like many other painful functional somatic syndromes (e.g. fibromyalgia) the pathophysiology of IBS includes abnormal responses to pain and dysregulation of brain-body pain pathways. IBS affects up to 10% of the population, is a leading reason for visits to gastroenterologists and primary care doctors, and, in the United States, annually accrues health care costs over $20 billion.

In their practice the investigators use centrally acting agents to treat IBS. Historically, the investigators have used tricyclic antidepressants based on results of clinical trials, including our NIH funded trial on desipramine. Nonetheless, these agents can produce side effects that limit their full application. More recently the investigators have begun to use SNRIs because they have been shown to benefit for various pain syndromes like diabetic neuropathy, fibromyalgia. The initial impression is that Milnacipran helps improve IBS symptoms and global well being. There is now a need to systematically determine Milnacipran's value for IBS.

Recruitment information / eligibility

• Status: Terminated
• Enrollment: 2
• Est. completion date: February 2013
• Est. primary completion date: February 2013
• Accepts healthy volunteers: No
• Gender: Female
• Age group: 18 Years to 79 Years

Eligibility

Inclusion Criteria:

• Meet Rome III criteria for IBS and have no red flags.

• Must have had a colonoscopy within the previous 5 years to exclude inflammatory or other bowel disease

• Be fluent and literate in English

• Must either be of non-childbearing potential or agree to utilize approved birth control for the duration of the study

Exclusion Criteria:

• Diagnosis or treatment of any clinically symptomatic biochemical or structural abnormality of the GI tract within 6 months prior to screening, or active disease within 6 months prior to screening.

• Any other diagnosis to explain the abdominal pain,

• Clinical evidence of significant cardiovascular, respiratory, renal, hepatic, gastrointestinal, hematologic, neurologic, psychiatric or any disease that may interfere with the subject successfully completing the trial

• Hepatic dysfunction (ALT [SGPT] or AST [SGOT] >3 times the upper limit of normal) or renal impairment (serum creatinine > 2mg/dL)

• Has disease affecting electrolytes balance, such as SIADH with serum Sodium less than 130mmol/L

• Any evidence of or treatment of malignancy (other than localized basal cell, squamous cell skin cancer or cancer in situ that has been resected) within the previous year

• Any surgery on the stomach, small intestine or colon, excluding appendectomy

• A major psychiatric disorder (DSM-III-R or DSM-IV) including major depression or other psychoses that has required hospitalization in the last 1 year.

• History of attempted suicide or uncontrolled bipolar disorder.

• Currently using antidepressants for psychiatric conditions like major depression. Use of TCA or SSRI class antidepressant acceptable if being used specifically for treatment of bowel symptoms and patient is willing to taper off the medication

• Previous use of Milnacipran or other SNRI antidepressant (duloxetine, venlafaxine, desvenlafaxine)

• A diagnosis of seizure disorder

• A diagnosis of glaucoma

• Currently taking heparin or warfarin

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment

Related Conditions & MeSH terms

• Irritable Bowel Syndrome
• Syndrome

Intervention

Drug:
• Milnacipran
50mg Milnacipran PO, BID, for 6 weeks.
• Milnacipran
Milnacipran, 100mg PO, BID, for six weeks
• Milnacipran
Milnacipran, 50mg PO BID for 12 weeks
• Placebo
Inactive pill, identical in shape, size, and appearance to active drug, PO, BID.

Locations

Country	Name	City	State
United States	UNC Center for Functional GI and Motility Disorders	Chapel Hill	North Carolina

Sponsors (2)

Lead Sponsor	Collaborator
Spencer Dorn, MD, MPH	Forest Laboratories

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Pain Response	Visual Analog Scale (VAS) scores (range 0-100 mm; 0 = none, 100 = worst pain) were recorded for pain before the beginning of the study, at 6 weeks of treatment and at the end visit i.e. 10 weeks. Ideally, VAS would have been administered at 12th week; however, subject was terminated at 10th week visit. More than >30% relief in pain would have been considered better outcome.	Twelve Weeks	No
Secondary	Quality of Life ( IBS-QOL)	After six weeks of treatment with Milnacipran, treatment groups were compared with placebo for clinically significant improvement in IBS-QOL. 11 point reduction in IBS-QOL compared to baseline was considered as clinically significant improvement.	Six Weeks	No
Secondary	Subject Self Reported Adequate Relief of Pain	The study sought to determine if the Milnacipran arms had a greater proportion of adequate relief over the placebo group. Subjects were asked to answer 'yes' or 'no' as to whether or not they had adequate relief of pain due to irritable bowel syndrome.	Twelve Weeks	No
Secondary	Treatment Efficacy Questionnaire (TEQ)	Treatment Efficacy Questionnaire is a measure of treatment effectiveness. The score ranges from 1 to 48, 1 is minimum score and 48 is the maximum score. The investigators was looking to see if the Milnacipran treatment groups have a higher proportion of subjects with significant improvement in efficacy, judged as a TEQ score of >28, compared to placebo group.	Twelve Weeks	No
Secondary	Dose Related Incremental Benefit in Pain Reduction Based on VAS	The investigator was looking to see if, for group A, when increased from 50 mg BID to 100 mg BID there is significant improvement of pain scores i.e. 30% pain reduction, and for group C, if there was significant improvement of pain scores when switched from placebo to 50 mg BID of Milnacipran	12 Weeks	No