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.
Italy
Researchers follow an exercise programme and measure changes in symptoms, biological markers and connections between brain areas in Parkinson’s.
Learning by observing or collecting information
Ages 30 years to 80 years · Does not accept healthy volunteers
United States
Researchers collect blood, genetic material and family-history information to support research into conditions affecting brain cells.
Learning by observing or collecting information
Age 18 years and over · Also accepts healthy volunteers
United States
Researchers are studying how to adjust a brain stimulation system that adapts to changes in people with Parkinson’s.
Testing a treatment or activity
Age 18 years and over · Does not accept healthy volunteers
China
Researchers study the safety of SST001, where it goes in the body and its radiation exposure in volunteers with and without movement conditions.
Testing a treatment or activity
Age 18 years and over · Also accepts healthy volunteers
Australia, Canada, Croatia, Israel + 5 more
Researchers follow people receiving foslevodopa and foscarbidopa in everyday care, focusing on quality of life earlier in advanced Parkinson’s.
Learning by observing or collecting information
Ages 18 years to 80 years · Does not accept healthy volunteers
Germany
Researchers are studying a stimulation technique applied through the head and aimed at a brain area involved in movement and balance.
Testing a treatment or activity
Age 18 years and over · Does not accept healthy volunteers
United States
Researchers test the safety and practicality of placing a person’s own nerve tissue into the brain during planned Parkinson’s surgery.
Testing a treatment or activity
Ages 45 years to 75 years · Does not accept healthy volunteers
United States
Researchers study sleep-related brain recordings while changing implanted brain stimulation in people with Parkinson’s.
Testing a treatment or activity
Age 18 years and over · Does not accept healthy volunteers
Denmark
Researchers study people with a disorder involving movements during dream sleep to better understand changes that can precede Parkinson’s.
Learning by observing or collecting information
Age 18 years and over · Also accepts healthy volunteers
United States
This early study checks whether a closely spaced schedule of magnetic brain stimulation is manageable and affects apathy in Parkinson’s.
Testing a treatment or activity
Ages 45 years to 85 years · Does not accept healthy volunteers
Netherlands, United States
Researchers test whether smartphone support can increase the amount and intensity of daily activity in people being studied for Parkinson’s-related risk.
Testing a treatment or activity
Age 50 years and over · Does not accept healthy volunteers
Denmark
Researchers study whether magnetic brain stimulation affects involuntary movements associated with levodopa treatment in Parkinson’s.
Testing a treatment or activity
Ages 18 years to 80 years · Does not accept healthy volunteers
Netherlands
Researchers in the Netherlands test whether a smartphone app can help people with a sleep movement disorder become more physically active.
Testing a treatment or activity
Age 50 years and over · Does not accept healthy volunteers
Pakistan
Researchers compare two movement-based exercise approaches in people with early Parkinson’s to study their usefulness in rehabilitation.
Testing a treatment or activity
Ages 50 years to 65 years · Does not accept healthy volunteers
United States
Researchers compile brain activity measurements into a shared map to help make better use of recordings collected in neurological care and research.
Learning by observing or collecting information
Ages 6 years to 90 years · Does not accept healthy volunteers
Netherlands
This early study investigates safety and how a study medicine behaves in volunteers with and without Parkinson's.
Testing a treatment or activity
Age range not listed · Ask the team who can join
United Kingdom
Researchers examine the role of methane-producing gut microbes in Parkinson’s and related conditions, including links with digestive problems.
Testing a treatment or activity
Age 55 years and over · Also accepts healthy volunteers
Spain
Researchers assess whether a brief set of movement and balance tests is useful and reliable for people with Parkinson’s.
Learning by observing or collecting information
Age 18 years and over · Does not accept healthy volunteers
United States
Researchers test a walking programme using a digital music device, looking at walking ability and how naturally walking happens in Parkinson’s.
Testing a treatment or activity
Age 40 years and over · Does not accept healthy volunteers
Germany
Researchers are following possible thinking and behavioural complications during treatment delivered through an intestinal pump.
Testing a treatment or activity
Age range not listed · Ask the team who can join
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.