A Placebo-Controlled Study of Clonidine for Fecal Incontinence.

NCT ID: NCT00884832

Last Updated: 2014-03-06

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

44 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-10-31

Study Completion Date

2012-08-31

Brief Summary

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Fecal incontinence is the involuntary leakage of stool from the anus. Doctors at Mayo Clinic are doing a research study to assess the effects of a medication, clonidine, on fecal incontinence and rectal functions in women. Clonidine has been approved by the Food and Drug Administration (FDA) for treating high blood pressure, but not for treating incontinence and rectal functions. The hypothesis of this study is clonidine will improve fecal incontinence, increase rectal capacity and reduce rectal sensation to a greater extent than placebo in women.

Detailed Description

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Available therapeutic options for idiopathic fecal incontinence (FI) are limited and unsatisfactory. In addition to weak anal sphincters, our data suggest that reduced rectal capacity may contribute to rectal hypersensitivity and the symptom of rectal urgency in FI. During a 4 week study, oral clonidine restored rectal capacity and improved fecal continence in women with urge-predominant FI. Clonidine improves fecal continence and stool consistency in diarrhea-predominant irritable bowel syndrome (IBS). Therefore, we now propose a placebo-controlled study of clonidine for FI. Our aims are to (i) compare the effects of clonidine and placebo, to be given for 4 weeks, on symptoms, anal pressures, rectal compliance and sensation in women with FI. Forty four women (18-75 y) with urge predominant "idiopathic" FI and ≥ 4 episodes of FI during a 4 week screening period will be recruited to this study. Thereafter, patients will be treated with clonidine or placebo for 4 weeks. Bowel symptoms will be recorded in a diary. Anal sphincter pressures, rectal compliance and sensation will be evaluated before and during treatment with clonidine.

Conditions

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Fecal Incontinence

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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Oral Clonidine

Subjects randomized to Clonidine will take 0.1 mg of the medication orally twice a day for a total of 4 weeks.

Group Type EXPERIMENTAL

Clonidine

Intervention Type DRUG

Subjects randomized to Clonidine will take 0.1 mg of the medication orally twice a day for a total of 4 weeks.

Oral Placebo

Subjects randomized to the placebo group will also take 0.1 mg of matching placebo pills orally twice a day for a total of 4 weeks.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Subjects randomized to the placebo group will also take 0.1 mg of matching placebo pills orally twice a day for a total of 4 weeks.

Interventions

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Clonidine

Subjects randomized to Clonidine will take 0.1 mg of the medication orally twice a day for a total of 4 weeks.

Intervention Type DRUG

Placebo

Subjects randomized to the placebo group will also take 0.1 mg of matching placebo pills orally twice a day for a total of 4 weeks.

Intervention Type DRUG

Other Intervention Names

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Kapvay Nexiclon Catapres

Eligibility Criteria

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Inclusion Criteria

* Women aged 18-75 years with urge predominant FI, as defined by a validated questionnaire, for greater than or equal to 1 year duration will be eligible to participate
* Absence of organic disease (i.e., ulcerative colitis, cancer) as evidenced by colonoscopy, or barium enema and sigmoidoscopy within the last 3 years

Exclusion Criteria

* History of clinically significant cardiovascular or pulmonary disease or EKG abnormalities within the last 6 months \[i.e., atrial flutter or fibrillation, sinus tachycardia (\> 110/minute) or bradycardia (\< 45 beats/minute), or prolonged corrected QT (QTc) interval (\> 460 msec)
* Current or past history of rectal cancer, scleroderma, inflammatory bowel disease, congenital anorectal abnormalities, greater than or equal to Grade 2 rectal prolapse, history of rectal resection or pelvic irradiation
* Neurological disorders - Spinal cord injuries, dementia (Mini-mental status score \<20/25), multiple sclerosis, Parkinson's disease, peripheral neuropathy
* Conditions precluding safe use of clonidine, i.e., symptomatic hypotension, or systolic blood pressure of \<100 mm Hg on initial screening visit
* Pregnant or nursing women
* Severe diarrhea during the run in phase defined as greater than 6 liquid stools daily (Bristol 6 or 7)
* Medications: Absolute - opioid analgesics, anticholinergic drugs \[low doses of tricyclic antidepressants, e.g., nortriptyline (up to 50 mg/day) or amitriptyline (up to 25 mg/day) will be permitted provided they were begun 3 months prior to the screening period\]
* Medications: Relative - other antihypertensive agents (i.e., if there is concern about synergistic effects and hypotension)
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

NIH

Sponsor Role collaborator

National Center for Research Resources (NCRR)

NIH

Sponsor Role collaborator

Mayo Clinic

OTHER

Sponsor Role lead

Responsible Party

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Adil Bharucha

PI

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Adil E Bharucha, M.D.

Role: PRINCIPAL_INVESTIGATOR

Mayo Clinic

Locations

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Mayo Clinic

Rochester, Minnesota, United States

Site Status

Countries

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United States

References

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Bharucha AE, Fletcher JG, Camilleri M, Edge J, Carlson P, Zinsmeister AR. Effects of clonidine in women with fecal incontinence. Clin Gastroenterol Hepatol. 2014 May;12(5):843-851.e2; quiz e44. doi: 10.1016/j.cgh.2013.06.035. Epub 2013 Jul 23.

Reference Type DERIVED
PMID: 23891925 (View on PubMed)

Other Identifiers

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R01DK078924

Identifier Type: NIH

Identifier Source: secondary_id

View Link

UL1RR024150

Identifier Type: NIH

Identifier Source: secondary_id

View Link

08-005892

Identifier Type: -

Identifier Source: org_study_id

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