Clinical Trials Logo

Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT02470780
Other study ID # 2015-2175
Secondary ID
Status Completed
Phase Phase 2/Phase 3
First received
Last updated
Start date December 2015
Est. completion date August 2017

Study information

Verified date February 2024
Source University of Cincinnati
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study investigates the effect of treating Small Intestinal Bacterial Overgrowth (SIBO) in patients with Parkinson's Disease (PD). It will test the hypothesis that treating SIBO with the antibiotic rifaximin will improve motor complications in previously SIBO-positive PD patients.


Description:

Parkinson's Disease (PD) patients with motor fluctuations will be screened for the presence of Small Intestinal Bacterial Overgrowth (SIBO) using two hydrogen breath tests. SIBO-positive individuals will be eligible to enroll, and randomized to receive either rifaximin or placebo. This study includes two treatment regimens (including a placebo control), designed so that all patients will receive the active drug at some point during the trial. Motor outcomes will be followed for 3 or 6 months following enrollment, depending on the treatment arm to which the subject has been assigned. The primary endpoint is to assess the effect of rifaximin treatment to decrease "off" time in SIBO-positive PD patients. This pilot study will support the design of a larger, randomized controlled trial investigating the effect of SIBO eradication on reducing motor complications in PD patients with motor fluctuations. The current proposal is designed to demonstrate our ability to detect and treat SIBO in PD patients with motor fluctuations, to inform selection of the best SIBO detection method, to determine the optimal timeline for assessing motor endpoints, and to estimate the duration of benefits after treatment.


Recruitment information / eligibility

Status Completed
Enrollment 4
Est. completion date August 2017
Est. primary completion date August 2017
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Diagnosis of idiopathic PD - Daily "off" time = 4 hours - No changes in levodopa or any other dopaminergic medications expected during the course of the study - Will be screened for cognitive ability (Montreal Cognitive Assessment score of = 24) prior to enrollment - Will be screened for presence of SIBO prior to enrollment Exclusion Criteria: - Any comorbid non-PD-associated gastrointestinal (e.g., achlorhydria) or systemic diseases that may alter absorption or confound the study results - Exposure to proton pump inhibitors, immunosuppressive drugs, medications that affect GI motility (such as prokinetics, anticholinergics, and tricyclic antidepressants), antibiotics or any other drugs that affect the intestinal flora (such as laxatives) within a month prior to enrollment. - Prior deep brain stimulation or ablative functional neurosurgery. - Prior allergy to rifaximin - Women who are pregnant, lactating, or plan to become pregnant.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Rifaximin
Rifaximin is an antibiotic used to treat SIBO. It is a 7-day course of treatment followed by three or six months of follow-up. This is a placebo-controlled study designed so that all participants will receive the active drug at least once during the study.
Placebo
Placebo matching Rifaximin treatment.

Locations

Country Name City State
United States University of Cincinnati Cincinnati Ohio

Sponsors (1)

Lead Sponsor Collaborator
University of Cincinnati

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Change in "Off" Time as Measured by Patient Diary OFF time is the time in which levodopa has ceased to be effective and Parkinsonian symptoms reemerge. baseline to 1 month and 3 months; new baseline at 3 months to 4 months and 6 months
Primary Change in "Off" Time as Measured by Wireless Computer Monitoring System This outcome measure was not analyzed due to low subject enrollment as well as poor subject compliance or data quality in some cases. 1, 3, and 6 months
See also
  Status Clinical Trial Phase
Completed NCT02915848 - Long-term Stability of LFP Recorded From the STN and the Effects of DBS
Recruiting NCT03648905 - Clinical Laboratory Evaluation of Chronic Autonomic Failure
Terminated NCT02688465 - Effect of an Apomorphine Pump on the Quality of Sleep in Parkinson's Disease Patients (POMPRENELLE). Phase 4
Completed NCT05040048 - Taxonomy of Neurodegenerative Diseases : Observational Study in Alzheimer's Disease and Parkinson's Disease
Active, not recruiting NCT04006210 - Efficacy, Safety and Tolerability Study of ND0612 vs. Oral Immediate Release Levodopa/Carbidopa (IR-LD/CD) in Subjects With Parkinson's Disease Experiencing Motor Fluctuations Phase 3
Completed NCT02562768 - A Study of LY3154207 in Healthy Participants and Participants With Parkinson's Disease Phase 1
Completed NCT00105508 - Sarizotan HC1 in Patients With Parkinson's Disease Suffering From Treatment-associated Dyskinesia Phase 3
Completed NCT00105521 - Sarizotan in Participants With Parkinson's Disease Suffering From Treatment Associated Dyskinesia Phase 3
Recruiting NCT06002581 - Repetitive Transcranial Magnetic Stimulation(rTMS) Regulating Slow-wave to Delay the Progression of Parkinson's Disease N/A
Completed NCT02236260 - Evaluation of the Benefit Provided by Acupuncture During a Surgery of Deep Brain Stimulation N/A
Completed NCT00529724 - Body Weight Gain, Parkinson, Subthalamic Stimulation Phase 2
Recruiting NCT05699460 - Pre-Gene Therapy Study in Parkinson's Disease and Multiple System Atrophy
Completed NCT03703570 - A Study of KW-6356 in Patients With Parkinson's Disease on Treatment With Levodopa-containing Preparations Phase 2
Completed NCT03462680 - GPR109A and Parkinson's Disease: Role of Niacin in Outcome Measures N/A
Completed NCT02837172 - Diagnosis of PD and PD Progression Using DWI
Not yet recruiting NCT04046276 - Intensity of Aerobic Training and Neuroprotection in Parkinson's Disease N/A
Recruiting NCT02952391 - Assessing Cholinergic Innervation in Parkinson's Disease Using the PET Imaging Marker [18F]Fluoroethoxybenzovesamicol N/A
Active, not recruiting NCT02937324 - The CloudUPDRS Smartphone Software in Parkinson's Study. N/A
Completed NCT02874274 - Vaccination Uptake (VAX) in PD N/A
Completed NCT02939391 - A Study of KW-6356 in Subjects With Early Parkinson's Disease Phase 2