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 2026-10-13 (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.
Belgium
Researchers use repeated brain scans to study changes over time in the connections through which nerve cells communicate.
Testing a treatment or activity
Age 30 years and over · Also accepts healthy volunteers
Brazil, United States
Researchers compare two rehabilitation approaches for turning difficulties and freezing of gait in Parkinson’s.
Testing a treatment or activity
Ages 50 years to 80 years · Does not accept healthy volunteers
Netherlands
Researchers study strategies people with Parkinson’s can use to compensate for difficulties with walking.
Testing a treatment or activity
Age 18 years and over · Does not accept healthy volunteers
Netherlands
Researchers use high-resolution MRI and analysis of brain connections to study how deep brain stimulation treatment could be guided.
Learning by observing or collecting information
Age 18 years and over · Does not accept healthy volunteers
Switzerland
Researchers investigate an early-stage approach that adjusts brain stimulation to support rehabilitation.
Testing a treatment or activity
Age 18 years and over · Does not accept healthy volunteers
Germany
Researchers evaluate a network that brings together different health professionals and uses remote assessments to coordinate Parkinson’s care.
Testing a treatment or activity
Ages 30 years to 85 years · Does not accept healthy volunteers
France
Researchers investigate patterns of activity in brain regions involved in movement, including how these patterns change with movement conditions.
Testing a treatment or activity
Ages 18 years to 75 years · Does not accept healthy volunteers
France
Researchers study care delivered at home by a team of professionals with different areas of expertise in Parkinson’s.
Testing a treatment or activity
Age 18 years and over · Also accepts healthy volunteers
Spain
This study investigates the effects and safety of two Parkinson's medicines over six months.
Testing a treatment or activity
Age range not listed · Ask the team who can join
Israel
Researchers compare people’s judgement of their ability to step over obstacles with their actual performance in Parkinson’s.
Learning by observing or collecting information
Ages 20 years to 80 years · Also accepts healthy volunteers
France
Researchers study how people with Parkinson’s interpret social information and the brain processes involved.
Testing a treatment or activity
Ages 30 years to 75 years · Also accepts healthy volunteers
United States
Researchers investigate brain stimulation that adapts to recorded brain activity as a possible way to improve sleep.
Testing a treatment or activity
Ages 18 years to 80 years · Does not accept healthy volunteers
China
Researchers investigate acupuncture combined with moxibustion, a treatment using heat from burning herbs, for movement symptoms in early Parkinson’s.
Testing a treatment or activity
Ages 30 years to 80 years · Does not accept healthy volunteers
United States
Researchers test robotic apparel designed to help prevent freezing of gait, when a person briefly cannot take the next step.
Testing a treatment or activity
Ages 18 years to 90 years · Does not accept healthy volunteers
Australia
Researchers compare treadmill-based rehabilitation approaches for people with Parkinson’s who have walking difficulties.
Testing a treatment or activity
Age 18 years and over · Does not accept healthy volunteers
China
Researchers investigate combined PET and MRI imaging with different tracers to gather information that may help diagnose brain conditions.
Learning by observing or collecting information
Ages 18 years to 60 years · Also accepts healthy volunteers
Italy
Researchers investigate how following a Mediterranean-style eating pattern affects people with Parkinson’s.
Testing a treatment or activity
Ages 40 years to 85 years · Does not accept healthy volunteers
Germany
Researchers study treadmill-based rehabilitation in Kiel for people with Parkinson’s who have walking difficulties.
Testing a treatment or activity
Age range not listed · Does not accept healthy volunteers
Sweden
Researchers measure brain activity during complex walking tasks in people with conditions that resemble Parkinson’s.
Learning by observing or collecting information
Age range not listed · Does not accept healthy volunteers
Denmark
Researchers compare community-based brisk walking programmes over 24 weeks to find out how they affect walking in Parkinson’s.
Testing a treatment or activity
Age 40 years and over · Does not accept 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: 2026-10-13
4689 related source records before matching duplicates
Import available
Last complete check: 2026-10-13
4384 related source records before matching duplicates
Import available
Last complete check: 2026-10-13
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.