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.
Switzerland
Researchers check the early safety and movement effects of ARC-IM spinal cord stimulation in people with Parkinson’s.
Testing a treatment or activity
Age 18 years and over · Does not accept healthy volunteers
Germany
Researchers study a structured programme that strengthens muscles used to breathe out, examining its effects on swallowing in Parkinson’s.
Testing a treatment or activity
Age 18 years and over · Does not accept healthy volunteers
Taiwan
Researchers study a combination of a probiotic and nutritional ingredients in early Parkinson’s, investigating its effects rather than assuming it slows the condition.
Testing a treatment or activity
Ages 30 years to 85 years · Does not accept healthy volunteers
Turkey
Researchers study whether practising two tasks at once affects arm function and muscle measurements in people with Parkinson’s.
Testing a treatment or activity
Ages 40 years to 65 years · Does not accept healthy volunteers
Hong Kong
Researchers study a mindfulness programme done by people with Parkinson’s together with their caregivers, looking at several aspects of wellbeing.
Testing a treatment or activity
Age 18 years and over · Does not accept healthy volunteers
United States
Researchers study brain networks involved in implanted stimulation to help improve device settings for walking and balance difficulties in Parkinson’s.
Testing a treatment or activity
Age 21 years and over · Does not accept healthy volunteers
United States
Researchers look for brain-scan features that might help predict changes in thinking after an implanted brain stimulator is fitted.
Learning by observing or collecting information
Age 18 years and over · Also accepts healthy volunteers
United States
Researchers study whether CereGate therapy reduces episodes when people with Parkinson’s feel unable to keep walking.
Testing a treatment or activity
Ages 21 years to 80 years · Does not accept healthy volunteers
Pakistan
Researchers study exercises for body control and mirror-based therapy, looking at balance and posture in Parkinson’s.
Testing a treatment or activity
Ages 50 years to 70 years · Does not accept healthy volunteers
United States
Researchers examine how immune cells in the digestive tract function and how they may contribute to neurological and autoimmune conditions.
Learning by observing or collecting information
Ages 18 years to 99 years · Also accepts healthy volunteers
United States
Researchers study a technology-supported exercise system for Parkinson’s when sessions are monitored in person or from a distance.
Testing a treatment or activity
Age 40 years and over · Does not accept healthy volunteers
Switzerland
Researchers test whether a bed that provides controlled rocking is practical and acceptable for people with Parkinson’s.
Testing a treatment or activity
Ages 18 years to 85 years · Does not accept healthy volunteers
Czech Republic, Switzerland
Researchers study whether computer analysis of speech can detect changes in movement, emotions and thinking in Parkinson’s.
Testing a treatment or activity
Ages 30 years to 75 years · Also accepts healthy volunteers
United States
Researchers study whether balance problems can be assessed and treated effectively through remote appointments for people with Parkinson’s.
Testing a treatment or activity
Ages 55 years to 85 years · Does not accept healthy volunteers
United States
Researchers study nerve cells in the digestive system to look for biological markers related to Parkinson’s.
Learning by observing or collecting information
Ages 45 years to 75 years · Also accepts healthy volunteers
United States
Researchers study speech amplification devices for people with Parkinson’s and related conditions who speak with a quiet voice.
Testing a treatment or activity
Age 50 years and over · Does not accept healthy volunteers
Pakistan
Researchers test games that involve physical movement as a way to support upper-limb function in Parkinson’s.
Testing a treatment or activity
Ages 45 years to 85 years · Does not accept healthy volunteers
Brazil
Researchers collect movement and non-movement symptom information to develop a national Parkinson’s research database in Brazil.
Learning by observing or collecting information
Ages 18 years to 120 years · Also accepts healthy volunteers
Turkey
Researchers compare walking practice supported by a robot with electrical stimulation of thigh muscles in Parkinson’s rehabilitation.
Testing a treatment or activity
Ages 40 years to 80 years · Does not accept healthy volunteers
Sweden
Researchers study why some people with Parkinson’s become less active and which factors make physical activity easier or harder.
Learning by observing or collecting information
Age 18 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: 2026-10-11
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.