TAKE PART IN RESEARCH
Research explained in everyday language. Explore what teams around the world are trying to learn, who can take part and how to get in touch.
See worldwide coverage and update dates ↓Studies with early results appear under “Results reported” even if recruitment continues.
Registry records retrieved 2026-10-11 (UTC). Individual records may have older updates. Recruitment and eligibility must be confirmed with the study team.
A location is a starting point. Ask the team whether that site is accepting people and whether you can take part from where you live.
Introductions are AI-written from the registry in everyday language and have not been independently checked by a clinician. Open any study for its full name, original description and participation rules.
Studies name Parkinson’s or a related condition. Some include other conditions or healthy volunteers. Country filters use sites with matching or unreported status. A country recorded by WHO does not confirm an open local site.
Denmark
Researchers test the effects of daily pulsed electromagnetic stimulation applied to the brain in people with Parkinson’s.
Testing a treatment or activity
Age 18 years and over · Also accepts healthy volunteers
Israel
Researchers gather information about ambroxol use in people with Gaucher disease and Parkinson’s associated with changes in the GBA gene.
Learning by observing or collecting information
Up to age 100 years · Does not accept healthy volunteers
South Korea
Researchers tailor magnetic brain stimulation to individual abilities and study its effects on walking in Parkinson’s.
Testing a treatment or activity
Age 50 years and over · Does not accept healthy volunteers
United Kingdom
Researchers study a brain-training approach aimed at balance difficulties in people with Parkinson’s.
Testing a treatment or activity
Age range not listed · Does not accept healthy volunteers
United States
Researchers compare changes after an independent walking programme carried out with or without walking poles in people with Parkinson’s.
Testing a treatment or activity
Age range not listed · Does not accept healthy volunteers
Turkey
Researchers test the safety and effects of the EarStim system for relief of Parkinson’s movement symptoms.
Testing a treatment or activity
Age 44 years and over · Does not accept healthy volunteers
Italy
Researchers examine posture, thinking and biological markers in early Parkinson’s to investigate patterns described as starting in the brain or body.
Learning by observing or collecting information
Age 18 years and over · Does not accept healthy volunteers
United States
Researchers study training for listeners as a way to make communication easier for people whose speech is affected by Parkinson’s.
Testing a treatment or activity
Age 18 years and over · Does not accept healthy volunteers
Australia
Researchers test detailed images of the retina, the light-sensitive layer at the back of the eye, in conditions affecting brain cells.
Testing a treatment or activity
Age 30 years and over · Also accepts healthy volunteers
South Korea
Researchers study dose-related safety and tolerability of IPS101A gene therapy in people with Parkinson’s.
Testing a treatment or activity
Ages 50 years to 80 years · Does not accept healthy volunteers
United States
Researchers examine safety, practicality and effects on thinking and brain activity in veterans with Parkinson’s.
Testing a treatment or activity
Age 50 years and over · Does not accept healthy volunteers
Japan, United States
Researchers compare LY4006896 with an inactive treatment in volunteers with and without Parkinson’s, examining safety and how the body handles it.
Testing a treatment or activity
Ages 30 years to 85 years · Also accepts healthy volunteers
United States
Researchers study a magnetic brain stimulation approach for impulse-control problems in people with Parkinson’s.
Testing a treatment or activity
Age 18 years and over · Does not accept healthy volunteers
United States
Researchers compare single and repeated doses of an experimental medicine with an inactive treatment, checking safety and how the body handles it.
Testing a treatment or activity
Ages 18 years to 65 years · Also accepts healthy volunteers
Italy
Researchers study pain alongside symptoms involving functions such as blood pressure and digestion in Parkinson’s and related conditions.
Learning by observing or collecting information
Age 18 years and over · Does not accept healthy volunteers
Sweden
Researchers study people with early Parkinson’s and a dream-sleep movement disorder to understand mechanisms and changes associated with sleep.
Learning by observing or collecting information
Ages 50 years to 100 years · Also accepts healthy volunteers
Pakistan
Researchers compare two types of virtual-reality rehabilitation for people with Parkinson’s, including an environment used collaboratively.
Testing a treatment or activity
Ages 45 years to 80 years · Does not accept healthy volunteers
Spain
Researchers study the combined effects of physical exercise and stimulation applied through the head in people with Parkinson’s.
Testing a treatment or activity
Age range not listed · Also accepts healthy volunteers
Brazil
Researchers test a supervised exercise programme and measure circulation, thinking and walking in Parkinson’s.
Testing a treatment or activity
Age 40 years and over · Does not accept healthy volunteers
United States
Researchers study brain systems involved in Parkinson’s using neuroimaging.
Learning by observing or collecting information
Age 40 years and over · Also accepts healthy volunteers
WORLDWIDE COVERAGE
Studies are imported from ClinicalTrials.gov, WHO’s international collection and the European CTIS registry. WHO brings together national and regional registries, including records from Asia, Africa and Latin America. Recruiting and upcoming listings have English introductions; older records awaiting an introduction show their registry title.
We aim for broad worldwide coverage, but no registry includes every study. Unregistered studies, reporting delays and missing translations can leave gaps. A missing paper does not mean that no results exist.
Import available
Last complete check: 2026-10-11
4689 related source records before matching duplicates
Update needs attention; retaining the last complete import
Last complete check: 2026-10-11
4384 related source records before matching duplicates
Import available
Last complete check: 2026-10-11
73 related source records before matching duplicates
These dates show when WHO processed a registry’s data, not when every study was last updated. WHO’s “not recruiting” label does not distinguish planned, completed and follow-up studies.
Source attribution: WHO ICTRP ↗. The source records and processing dates remain available on each study page. English registration fields are preferred; original descriptions may include local-language material. Registry imports and paper matching run daily. New or changed descriptions enter an editorial queue.