Parkinson's Disease Trial, By Invitation NCT04566341 Sponsor: Massachusetts General Hospital Condition: Parkinson's Disease
Back to Parkinsons Disease

Parkinson's Disease Trial, By Invitation

NCT04566341
By Invitation Not Applicable

voxsanity.com.au · Eligibility summary from public government registries · 18 August 2026 · not medical advice

Who may and may not be able to join

AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI

Who may be able to join

  • People diagnosed with idiopathic Parkinson's disease (the most common form, with no known external cause), confirmed using a standard set of medical criteria used in the UK.
  • People whose Parkinson's disease falls within stages 2 to 4 on a standard scale used to measure how the condition affects movement and daily life.
  • People who have been on a stable, unchanged dose of their Parkinson's disease medications for at least 4 weeks before the initial screening appointment.
  • People between the ages of 40 and 85 years old.
  • People who are able to understand the study and give their own informed consent to participate.

Who may not be able to join

Each point below is a reason the trial team may not be able to accept someone. It is not a list of requirements to meet.

  • People whose Parkinson's disease is classified as an atypical or secondary form (meaning it is caused by another condition or has features beyond typical Parkinson's disease).
  • People who have a fistula or narrowing in the oesophagus (the tube connecting the throat to the stomach) where the narrowed opening is smaller than the capsule used in the trial.
  • People who have had part of their intestine surgically removed within the last six months.
  • People who have previously had surgery on the stomach, oesophagus, or the throat and mouth area.
  • People who are unable to swallow capsules.
  • People who are pregnant, as confirmed by the information provided by the participant.

Important: Always verify eligibility with the trial site directly before applying.

Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.

This is a simplified plain English summary of the eligibility criteria. Full criteria are set by the trial investigators and may include additional requirements not shown here. Never self-exclude from a trial based on this summary. Contact the trial site directly to confirm your eligibility.
Last synced 31 July 2026
This study is not part of the standard drug-approval phase pathway (for example an observational, device, behavioural, or registry study), so a phase success rate does not apply.

GP referral letter

Print a one-page summary to share with your doctor.

Trial details

Status
By Invitation
Phase
Not Applicable
Registry
ClinicalTrials.gov
Start date
4 May 2019
Est. completion
31 December 2027

Where this trial is recruiting

🇺🇸 United States

Primary endpoints

Feasibility of OCT TCE to identify Parkinson's Disease based on image adequacy; Feasibility of OCT TCE to identify Parkinson's Disease based on morphological changes compared to matched controls

Can't join this trial?

Expanded access pathways

If this trial is not available to you, other access pathways may exist. In Australia, the TGA Special Access Scheme allows access to unapproved therapeutic goods for individual patients.

TGA Special Access Scheme information

Find other recruiting trials on ClinicalTrials.gov

Data last synced from ClinicalTrials.gov: 31 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.

Trial recruitment status can change without notice between our nightly data updates. Always contact the trial site directly to confirm current recruitment status before making any decisions or travel arrangements.

View original record on ClinicalTrials.gov