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 test an implanted electrical stimulation approach near the spinal cord, checking safety and effects on blood-pressure and circulation control in Parkinson’s-related conditions.
Testing a treatment or activity
Ages 18 years to 90 years · Does not accept healthy volunteers
United States
Researchers study stimulation settings aimed at improving how the eyes align and refocus, and how vision guides movement in Parkinson’s.
Learning by observing or collecting information
Age range not listed · Does not accept healthy volunteers
France
Researchers study how a deep brain area helps control movement and how changes there relate to difficulty moving in Parkinson’s.
Testing a treatment or activity
Ages 18 years to 70 years · Also accepts healthy volunteers
Turkey
Researchers study L-theanine and a Mediterranean-style diet in relation to dream-sleep movements, digestive function and inflammation in Parkinson’s.
Testing a treatment or activity
Ages 50 years to 80 years · Does not accept healthy volunteers
United States
Researchers study whether a patterned form of implanted brain stimulation is safe and manageable when people use it at home.
Testing a treatment or activity
Ages 18 years to 80 years · Does not accept healthy volunteers
Turkey
Researchers study a breathing exercise that involves blowing against resistance, looking at breathing muscles, strength and balance in Parkinson’s.
Learning by observing or collecting information
Ages 18 years to 75 years · Does not accept healthy volunteers
United States
Researchers use magnetic stimulation to explore how movement-related brain pathways respond in people with Parkinson’s and impaired balance control.
Learning by observing or collecting information
Ages 45 years to 80 years · Also accepts healthy volunteers
Italy
Researchers study a walking-training approach that turns aspects of movement into sounds people can hear as feedback.
Testing a treatment or activity
Up to age 80 years · Does not accept healthy volunteers
China
Researchers develop ways to combine digital measurements with small cell-released particles to look for early signs of Parkinson’s.
Learning by observing or collecting information
Ages 40 years to 80 years · Also accepts healthy volunteers
South Korea
Researchers follow people who received IPS101A gene therapy for severe Parkinson’s to assess long-term safety and whether any effects last.
Learning by observing or collecting information
Ages 50 years to 80 years · Does not accept healthy volunteers
United States
Researchers test an imaging substance to measure changes in nerve-related activity in the heart in people with Lewy body disease.
Testing a treatment or activity
Age 18 years and over · Does not accept healthy volunteers
China
Researchers study the safety and effects of placing nerve-cell preparations derived from a person’s own cells into the brain for Parkinson’s.
Testing a treatment or activity
Ages 30 years to 85 years · Does not accept healthy volunteers
China
Researchers study whether individually targeted magnetic stimulation affects movement and other symptoms in Parkinson’s and related conditions.
Testing a treatment or activity
Ages 30 years to 80 years · Does not accept healthy volunteers
United States
Researchers study whether a structured osteopathic hands-on treatment approach affects sleep in people with Parkinson’s.
Testing a treatment or activity
Age range not listed · Does not accept healthy volunteers
Austria, United Arab Emirates, United States
Researchers study delivery of cells taken from a person’s bone marrow through the bloodstream and nasal passages. The original record gives the procedures and risks.
Testing a treatment or activity
Age 18 years and over · Does not accept healthy volunteers
United States
Researchers study how stepping to a metronome on a treadmill and over the ground affects walking in Parkinson’s.
Testing a treatment or activity
Ages 50 years to 80 years · Does not accept healthy volunteers
Japan
Researchers check the safety and tolerability of MF1, an experimental treatment being investigated for Parkinson’s-related conditions.
Testing a treatment or activity
Ages 18 years to 85 years · Also accepts healthy volunteers
Belgium
This study compares two scans that may help tell Parkinson's and Lewy body dementia from similar conditions.
Testing a treatment or activity
Age range not listed · Ask the team who can join
United States
Researchers use wearable measurements to study the duration and quality of periods with good movement control while taking the medicine Crexont.
Testing a treatment or activity
Age 40 years and over · Does not accept healthy volunteers
China
Researchers compare a responsive brain stimulation system with another approach, checking safety and control of Parkinson’s symptoms.
Testing a treatment or activity
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.