- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03129451
The Microbiome in Parkinson's Disease
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Actual)
Contacts and Locations
Study Contact
- Name: Ashok Sriram
- Phone Number: 616-267-7900
- Email: ashok.sriram@spectrumhealth.org
Study Contact Backup
- Name: Casey Doyle
- Phone Number: 616-486-6128
- Email: casey.doyle@spectrumhealth.org
Study Locations
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Michigan
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Grand Rapids, Michigan, United States, 49503
- Spectrum Health
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Sampling Method
Study Population
Description
Inclusion Criteria:
- Individuals with Parkinson's disease (including multiple system atrophy). Males and females are eligible for the study. Appendectomized cohort must have had their appendectomy at least 20 years before Parkinson's disease onset
Exclusion Criteria:
1. Body Mass Index greater than or equal to 35 or less than or equal to 18. 2. Vital signs outside of acceptable range at Screening Visit, i.e., blood pressure >160/100, oral temperature >100°F, pulse >100.
3. Use of any of the following drugs within the last 6 months:
- systemic antibiotics, antifungals, antivirals or antiparasitics (intravenous, intramuscular, or oral);
- cytokines;
- methotrexate or immunosuppressive cytotoxic agents;
large doses of commercial probiotics consumed (greater than or equal to 108 cfu or organisms per day) - includes tablets, capsules, lozenges, chewing gum or powders in which probiotic is a primary component. Ordinary dietary components such as fermented beverages/milks, yogurts, foods do not apply.
4. Acute viral/bacterial infection disease at the time of sampling (defer sampling until subject recovers). Acute disease is defined as the presence of a moderate or severe illness with or without fever.
5. Unstable dietary history as defined by major changes in diet during the previous month, where the subject has eliminated or significantly increased a major food group in the diet.
6. Recent history of chronic alcohol consumption defined as more than five 1.5- ounce servings of 80 proof distilled spirits, five 12-ounce servings of beer or five 5-ounce servings of wine per day.
7. Positive test for HIV, HBV or HCV. 8. Any confirmed or suspected condition/state of immunosuppression or immunodeficiency (primary or acquired) including HIV infection.
9. Major surgery of the GI tract, with the exception of cholecystectomy and appendectomy, in the past five years. Any major bowel resection at any time.
10. History of active uncontrolled gastrointestinal disorders or diseases including:
- inflammatory bowel disease (IBD) including ulcerative colitis (mild-moderate-severe), Crohn's disease (mild-moderate-severe), or indeterminate colitis;
- irritable bowel syndrome (IBS) (moderate-severe);
- persistent, infectious gastroenteritis, colitis or gastritis, persistent or chronic diarrhea of unknown etiology, Clostridium difficile infection (recurrent) or Helicobacter pylori infection (untreated); 11. Female who is pregnant or lactating. 12. Atypical or secondary Parkinson's disease 13. Adults that are unable to consent, individuals that are not yet adults and prisoners are not eligible for this study
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Tremor-dominant
Tremor-dominant Parkinson's disease
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Analyzing Microbiome specimens in stool
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Akinetic-Rigid
Akinetic-Rigid type Parkinson's disease
|
Analyzing Microbiome specimens in stool
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Multiple systems atrophy
Multiple systems atrophy PD
|
Analyzing Microbiome specimens in stool
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Levodopa-naïve
Levodopa-naïve Parkinson's disease
|
Analyzing Microbiome specimens in stool
|
Tremor-dominant / app
Tremor-dominant Parkinson's disease with an appendectomy
|
Analyzing Microbiome specimens in stool
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Akinetic-Rigid / app
Akinetic-Rigid Parkinson's disease with an appendectomy
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Analyzing Microbiome specimens in stool
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Levodopa-naïve w/app
Levodopa-naïve Parkinson's disease with an appendectomy
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Analyzing Microbiome specimens in stool
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
The current study determines whether certain Parkinson's subtypes are prone to pro-inflammatory microbiomes.
Time Frame: 3 years
|
Differences in microbiome abundance will be detected using a Kruskal-Wallis' test generating a Benjamini-Hochberg false discovery rate (FDR)-corrected P value (<0.05 for significance).
For the microbiome analysis, in silico community functional predictions will be performed using PICRUSt (Phylogenetic Investigation of Communities by Reconstruction of Unobserved States) and significant differences in Kyoto Encyclopedia of Genes and Genomes (KEGG) ortholog (KO) abundances between groups will be identified (FDR-corrected P value <0.05 for significance).
Putative "proinflammatory" and "anti-inflammatory" bacteria taxa will be classified based on previous reports (and the references therein) (see Keshavarzian et al., 2015).
Differences in inflammatory metabolite abundance will be detected using a Kruskal-Wallis' test generating a Benjamini-Hochberg false discovery rate (FDR)-corrected P value (0.05).
|
3 years
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Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Ashok Sriram, MD, MS, Spectrum Health Medical Group
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2016-313
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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