Lubiprostone as a Treatment for Constipation in Parkinson's Disease

University of Arkansas

Status: Terminated

Conditions: Parkinson's Disease; Constipation

Treatments: Drug: Lubiprostone

Study type: Interventional

Funder types: Other; Industry

Identifiers

NCT00669461

78055

FWA00001119

Details and patient eligibility

About

Delayed colonic transient time secondary to a multi-degenerative process is the most likely cause of constipation in idiopathic PD. Since lubiprostone demonstrated its ability to accelerate colonic transit time in healthy volunteers in addition to activating the chloride channels in the intestinal cells, it has the potential to improve constipation in patients with PD with no subsequent adverse events on the control of the neurological manifestation of PD. So we hypothesize the following:

1. Lubiprostone will improve ratings on the Bristol stool form scale (BSFS) in patients with PD induced constipation compared to baseline.(primary)
2. Lubiprostone will increase the number of spontaneous bowel movements (SBM) per week, compared to baseline. (secondary)
3. Lubiprostone will improve health related quality of life in subjects with PD induced constipation. ( secondary)

Enrollment: 1 patient

Sex: All

Ages: 50 to 85 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Age 50-85 years
2. Diagnosis of Parkinson's disease
3. Constipation as defined by the Rome III committee
4. BSFS of more or equal to 1 and less or equal to 3
5. Normal colonoscopy in the last 5 years( normal defined as absence of obstructive lesions in the colon)
6. All women subjects will be post menopausal or surgically sterile.

Exclusion criteria

1. Known hypersensitivity reaction to Amitiza ( Lubiprostone)
2. Known significant adverse effects to previous treatment with Lubiprostone which include; new or worsening abdominal pain, severe diarrhea, nausea, vomiting, and severe headache.
3. Renal dysfunction with creatinine clearance less than 15 ml/min
4. Abnormal liver enzymes or history of chronic liver disorder
5. History of bowel obstruction, , or abdominal adhesions .
6. Abnormal Colonoscopy ( obstructive lesions within the colon)
7. Inability to give informed consent

Trial design

Primary purpose: Treatment

Allocation: Non-Randomized

Interventional model: Crossover Assignment

Masking: None (Open label)

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1 participants in 1 patient group

Patients

Experimental group

Treatment:

Drug: Lubiprostone