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.
South Korea
Researchers give single or repeated doses of FB418 to healthy adults, including older adults, to study safety and how the body handles it.
Testing a treatment or activity
Age 19 years and over · Also accepts healthy volunteers
United Kingdom
Researchers investigate the CUE1 and CUE1+ devices in people with Parkinson’s and related conditions.
Testing a treatment or activity
Age 18 years and over · Does not accept healthy volunteers
France
Researchers investigate rhythmic sound cues during rehabilitation for people with Parkinson’s and swallowing difficulties.
Testing a treatment or activity
Age 18 years and over · Does not accept healthy volunteers
Switzerland
Researchers combine clinical assessments, imaging and computer analysis to study Parkinson’s risk in people with REM sleep behaviour disorder, which involves acting out dreams.
Testing a treatment or activity
Age 18 years and over · Does not accept healthy volunteers
China
Researchers use a powerful seven-tesla MRI scanner to study brain features in people with Parkinson’s.
Learning by observing or collecting information
Ages 18 years to 80 years · Also accepts healthy volunteers
China
Researchers study the safety and early effects of NouvNeu001 injections in people whose Parkinson’s began at a younger age.
Testing a treatment or activity
Ages 18 years to 70 years · Does not accept healthy volunteers
China
Researchers investigate the safety, tolerability and early effects of NouvNeu001, an injection of developing cells intended to produce dopamine.
Testing a treatment or activity
Ages 50 years to 75 years · Does not accept healthy volunteers
Italy
Researchers assess voluntary muscle activation during controlled exercises in people with conditions affecting movement and the nervous system.
Testing a treatment or activity
Ages 18 years to 70 years · Does not accept healthy volunteers
Taiwan
Researchers use an early-stage imaging study to investigate relationships between gut microbes, the gut and the brain.
Testing a treatment or activity
Age 20 years and over · Does not accept healthy volunteers
Egypt
Researchers investigate sensory electrical stimulation as a possible approach for resting tremor in Parkinson’s.
Testing a treatment or activity
Ages 45 years to 60 years · Does not accept healthy volunteers
Italy
Researchers use detailed recordings of electrical brain activity to investigate mild thinking difficulties and their relationship with Parkinson’s.
Learning by observing or collecting information
Ages 50 years to 90 years · Also accepts healthy volunteers
Taiwan
Researchers study ways to assess and distinguish different causes of increased muscle resistance in conditions such as Parkinson’s and spinal cord injury.
Testing a treatment or activity
Age 20 years and over · Also accepts healthy volunteers
China
Researchers investigate an experimental treatment using stem-cell-derived developing nerve cells intended to produce dopamine, a brain chemical affected in Parkinson’s.
Testing a treatment or activity
Ages 30 years to 70 years · Does not accept healthy volunteers
Taiwan
Researchers study training aimed at the body adjustments needed to start walking in Parkinson’s.
Testing a treatment or activity
Age 20 years and over · Does not accept healthy volunteers
France
Researchers investigate movement sensors for detecting freezing of gait, when a person with Parkinson’s briefly cannot take the next step.
Testing a treatment or activity
Age 18 years and over · Does not accept healthy volunteers
Taiwan
Researchers investigate augmented-reality walking training, which adds digital information to a person’s view, for walking difficulties in Parkinson’s.
Testing a treatment or activity
Age 20 years and over · Does not accept healthy volunteers
Italy
Researchers investigate walking on a split-belt treadmill as an approach to uneven walking patterns.
Testing a treatment or activity
Ages 18 years to 70 years · Does not accept healthy volunteers
Switzerland
Researchers investigate a rehabilitation approach that uses personalised stimulation to address movement difficulties in Parkinson’s.
Testing a treatment or activity
Age 18 years and over · Does not accept healthy volunteers
Netherlands
Researchers are investigating whether ambroxol changes the course of Parkinson's in people with a particular genetic change.
Testing a treatment or activity
Age range not listed · Ask the team who can join
United States
Researchers investigate relationships between exercise and inflammation in older adults and people with Parkinson’s.
Testing a treatment or activity
Ages 30 years to 85 years · 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: 2026-10-13
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.