Parkinson's Disease and Digestive Health

July 18, 2023 updated by: Augusta University

Characterization of Gastrointestinal and Neuroenteric Dysfunction in Parkinson's Disease

This study focuses on the relationship between the brain and the gut, and additionally will foster collaboration between Movement Disorder experts and Neurogastroenterologists to provide critical information and lead to innovative therapies in the future to treat GI dysfunction of Parkinson's Disease.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Parkinson's disease affects 1 million people in the US with a rising prevalence. In addition to neurological problems, patients with Parkinson's Disease often suffer from debilitating gastrointestinal (GI) symptoms related to delayed stomach emptying, gas/bloating, and constipation. GI complaints of patients suffering from Parkinson's Disease are poorly understood. This proposal aims to characterize GI disturbance in patients with Parkinson's Disease and provide deeper understanding by investigating symptoms, regional and whole gut transit, anorectal physiology, and the brain-gut axis. The investigator believes patients with Parkinson's Disease will show altered GI sensation, slower GI motility and demonstrate deranged regulation of the brain-gut axis correlated to severity of Parkinson's disease. Results from this study of GI motility and brain-gut axis will define a subset of Parkinson's Disease patients that can benefit from tailored treatment. This study will foster collaboration between Movement Disorder experts and Neurogastroenterologists to provide critical information and lead to innovative therapies in the future to treat GI dysfunction of Parkinson's Disease.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
25

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Georgia
      • Augusta, Georgia, United States, 30912
        • Augusta University Digestive Health Research

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

14 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Presence of 2 of 3 cardinal features of PD (resting tremor, bradykinesia, and rigidity)
  • Hoehn and Yahr Scale stage I-IV
  • Men or women aged 18+
  • Stable dopaminergic treatment for ≥4 weeks.
  • Women of childbearing potential must agree to a urine pregnancy test at screening and to avoid pregnancy throughout the study.

Exclusion Criteria:

  • Secondary parkinsonism.
  • Parkinson-plus syndromes.
  • Montreal Cognitive Assessment score <17.
  • Unstable dosage of drugs active in the cns (e.g., anxiolytics, antidepressants) during the 60 days before the visit.
  • Participation in drug studies within 30 days of screening.
  • Structural brain disease.
  • Women who are pregnant or likely to conceive (women with potential for pregnancy must use contraceptive measures to be included);
  • Active or personal history of epilepsy.
  • Acute illness or active, confounding medical, neurologic, or musculoskeletal conditions.
  • Alcoholism or other forms of drug addiction.
  • Significant prior gastrointestinal surgery.
  • Ongoing chemotherapy or other treatment for cancer.
  • Dysphagia
  • implanted or externally worn medical device such as, but not limited to, a pacemaker. (gastric stimulators, bladder stimulators, spinal stimulators, medication infusion devices, insulin pumps, continuous glucose monitors are permitted).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Other: Parkinson's Disease Relationship to the GI track
Patients with Parkinson's.
Diagnostic test: Gastrointestinal and Parkinson's Disease
Subjects with Parkinson's disease will come for visits that will contain questionnaires about their PD, their bowel movements, and do further tests using anal rectal probes to understand further their constipation, and other tests to gather data on their digestion.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Cortical Evoked Potential (CEP)
Time Frame: Single Visit, 3 hours
Bilateral amplitude (microvolts) for ano-rectal CEP responses
Single Visit, 3 hours
Motor Evoked Potential (MEP)
Time Frame: Single visit, 2 hours
Bilateral amplitude (microvolts) for ano-rectal MEP responses
Single visit, 2 hours

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Gastrointestinal motor function and transit
Time Frame: 2 visits, 1hour
The measurements to be obtained are gastric emptying time (GET), small bowel transit time (SBTT), colonic transit time (CTT) and whole gut transit time (WGTT) over a period of 5 days. Tool to be used includes wireless motility capsule and corresponding recorder swallowed on initial visit and returned 5 days later. Specific measurements obtained include time in hours of GET, SBTT, CTT, WGTT. These outcome will only be measured once per subject and not be reassessed.
2 visits, 1hour
Rectal sensorimotor function
Time Frame: Single visit, 2 hours
Rectal sustained squeeze pressure (mmHg) measure from Anal rectal manometry study
Single visit, 2 hours
Anal sensorimotor function
Time Frame: Single visit, 2 hours
Anal sustained squeeze pressure (mmHg) measure from Anal rectal manometry study
Single visit, 2 hours
Unified Parkinson Disease Rating Scale (UPDRS)
Time Frame: Single visit, 1 hour
Used to follow the longitudinal course of Parkinson's disease. The UPDRS scale consists of the following five segments: 1) Mentation, Behavior, and Mood, 2) ADL, 3) Motor sections, 4) Modified Hoehn and Yahr Scale, and 5) Schwab and England ADL scale. Some sections of the UPDRS scale require multiple grades assigned to each extremity with a possible maximum of 199 points. A score of 199 on the UPDRS scale represents the worst (total disability) with a score of zero representing (no disability).
Single visit, 1 hour
Montreal Cognitive Assessment (MoCA)
Time Frame: Single visit, 1 hour
Screening assessment for detecting cognitive impairment. MoCA scores range between 0 and 30. A final total score of 26 and above is considered normal.
Single visit, 1 hour
Non-motor symptoms questionnaire
Time Frame: Single visit, 1 hour
A 30-item screening patient-based questionnaire used to determine the non-motor symptoms experienced by the patient. The points should be totalled to give a score out of 30. A score of under 10 is mild, 10-20 moderate and over 20, severe.
Single visit, 1 hour
36-Item Short Form Survey (SF-36)
Time Frame: Single visit, 1 hour
SF-36 is a set of generic, coherent, and easily administered quality-of-life measures. The SF-36 consists of eight scaled scores, which are the weighted sums of the questions in their section. Each scale is directly transformed into a 0-100 scale on the assumption that each question carries equal weight. The lower the score the more disability. The higher the score the less disability i.e., a score of zero is equivalent to maximum disability and a score of 100 is equivalent to no disability.
Single visit, 1 hour
Stool diary
Time Frame: 2 visits, 1 hour
The measurement to be obtained is bowel pattern. Tool to be used include 2-week stool diary. Specific measurements obtained include number of complete spontaneous bowel movements (CSBMs) a week. These outcome will only be measured once per subject and not be reassessed.
2 visits, 1 hour
Gastroparesis Cardinal Symptom Index (GCSI)
Time Frame: Single visit, 1 hour
The GCSI is based on three subscales: post-prandial fullness/early satiety (4 items); nausea/vomiting (3 items), and bloating (2 items). A six-point Likert response scale, ranging from 0 (none) to 5 (very severe), with a 2-week recall period, was used to rate the severity of each symptom. The GCSI total score was constructed as the average of the three symptom sub-scales. GCSI total scores were in the range 0-5, with higher scores reflecting greater symptom severity.
Single visit, 1 hour
Eckdart score (ESS)
Time Frame: Single visit, 1 hour
The ESS is a 4 item self-report scale measuring weight loss in kilograms, chest pain, regurgitation, and dysphagia. Each item is graded on a score of 0 to 3, with a maximum score of 12. Scores greater than or equal to 3 are considered suggestive of active achalasia. The ESS is widely used in both clinical and research settings as a gold standard for measuring achalasia symptom severity.
Single visit, 1 hour
Breath testing
Time Frame: Single visit, 3 hours
The measurement to be obtained is presence of bacterial overgrowth. Tool to be used include breath testing via gas chromatography. Specific measurements obtained hydrogen and methane in parts per million (ppm) at baseline and every 30 minutes for 2-3 hours. These outcome will only be measured once per subject and not be reassessed.
Single visit, 3 hours

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Augusta University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Parkinson's Disease Foundation

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Amol Sharma, MD, Augusta University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 4, 2017

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 30, 2020

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 30, 2021

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 19, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 23, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 25, 2019

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 20, 2023

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 18, 2023

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2023

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • PARKIDF00001

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Parkinson's Disease foundation sponsored this study they will most likely be made aware about how recruitment went, participation, and ending results.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

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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