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 2026-10-14 (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.
Iran
This study compares ways of practising arm movement and coordination in Parkinson's.
Testing a treatment or activity
Ages 35 years to 80 years · Ask the team who can join
Iran
This study investigates rehabilitation aimed at upper-limb movement and taking part in daily activities.
Testing a treatment or activity
Ages 35 years to 85 years · Ask the team who can join
Iran
This study investigates a supervised treatment that uses electrical stimulation to produce a brief seizure.
Testing a treatment or activity
Ages 40 years to 75 years · Ask the team who can join
Iran
This study tests a plant extract and measures Parkinson's symptoms. Benefits remain to be established.
Testing a treatment or activity
Ages 30 years to 80 years · Ask the team who can join
Iran
Researchers are testing a preparation derived from turmeric and measuring fatigue, sleep and quality of life in Parkinson's.
Testing a treatment or activity
Age 35 years and over · Ask the team who can join
Iran
Researchers are testing injections alongside usual Parkinson's medicines and measuring their effects.
Testing a treatment or activity
Ages 30 years to 85 years · Ask the team who can join
Germany
Researchers are using repeated scans to study brain support cells and inflammation in neurological conditions.
Learning by observing or collecting information
Ages 51 years to 85 years · Ask the team who can join
Germany
Researchers are following the use of Inbrija for periods when regular Parkinson's medicine wears off.
Learning by observing or collecting information
Age 18 years and over · Ask the team who can join
Germany
This register collects symptom, health and thinking assessments to understand restless legs syndrome and related conditions.
Learning by observing or collecting information
Age 18 years and over · Ask the team who can join
Germany
Researchers are asking patients about taking individually produced tablets and comparing them with standard tablets.
Learning by observing or collecting information
Age 50 years and over · Ask the team who can join
Germany
This register tracks treatment and outcomes for people receiving brain stimulation for Parkinson's and other movement disorders.
Learning by observing or collecting information
Age 18 years and over · Ask the team who can join
Germany
This study tests a programme of twice-weekly dance sessions for people with Parkinson's and related conditions.
Testing a treatment or activity
Age 30 years and over · Ask the team who can join
Germany
This study uses magnetic stimulation to investigate how brain areas involved in movement work in Parkinson's.
Learning by observing or collecting information
Age 18 years and over · Ask the team who can join
Germany
This study investigates how the brain's dopamine system relates to effort and movement early in Parkinson's.
Testing a treatment or activity
Ages 50 years to 80 years · Ask the team who can join
Germany
Researchers are comparing approaches guided by brain anatomy or electrical signals and asking which patients prefer.
Testing a treatment or activity
Age 18 years and over · Ask the team who can join
Germany
This study investigates how stimulation of a nerve near the ear affects pupil responses in older adults and Parkinson's.
Testing a treatment or activity
Age 18 years and over · Ask the team who can join
Austria
Researchers are collecting movement data to develop computer methods that might anticipate freezing episodes in Parkinson's.
Learning by observing or collecting information
Age range not listed · Ask the team who can join
France, Germany, Spain
Researchers are testing the Parkinson Go care system alongside usual treatment in a European study.
Testing a treatment or activity
Age 18 years and over · Ask the team who can join
Germany
Researchers are analysing speech in people with Parkinson's, Alzheimer's and other thinking conditions, alongside healthy volunteers.
Learning by observing or collecting information
Age 18 years and over · Ask the team who can join
Germany
This study combines assessments and scans to develop computer methods for identifying Parkinson's and related conditions.
Learning by observing or collecting information
Age 18 years and over · 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: 2026-10-14
4690 related source records before matching duplicates
Import available
Last complete check: 2026-10-14
4384 related source records before matching duplicates
Import available
Last complete check: 2026-10-14
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.