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 tests whether feedback about shaking helps people with Parkinson's practise controlling hand tremor.
Testing a treatment or activity
Age 20 years and over · Ask the team who can join
Iran
Researchers are testing light-emitting glasses to investigate whether changing daily body rhythms affects walking in Parkinson's.
Testing a treatment or activity
Ages 40 years to 75 years · Ask the team who can join
Iran
This study investigates a training programme and measures balance and quality of life in older people with Parkinson's.
Testing a treatment or activity
Ages 60 years to 75 years · Ask the team who can join
Iran
This study compares modafinil and methylphenidate for excessive sleepiness in Parkinson's.
Testing a treatment or activity
Age range not listed · Ask the team who can join
Iran
Researchers are studying chamomile capsules and measuring their effects over four weeks. Benefits remain to be established.
Testing a treatment or activity
Age range not listed · Ask the team who can join
Iran
Researchers are comparing thinking assessments in people with Parkinson's who do or do not receive stimulation surgery.
Testing a treatment or activity
Age 15 years and over · Ask the team who can join
Iran
This study investigates activities involving several senses and measures dependence on caregivers in older people.
Testing a treatment or activity
Age 60 years and over · Ask the team who can join
Iran
Researchers are testing different insoles and measuring walking and balance in Parkinson's.
Testing a treatment or activity
Ages 60 years to 70 years · Ask the team who can join
Iran
This study tests a medicine to investigate episodes when a person with Parkinson's becomes unable to step forward.
Testing a treatment or activity
Age range not listed · Ask the team who can join
Iran
This study adds body-rotation exercises to usual practice and measures stability in Parkinson's.
Testing a treatment or activity
Ages 40 years to 75 years · Ask the team who can join
Iran
Researchers are studying whether intensive voice treatment affects how people with Parkinson's perceive emotions.
Testing a treatment or activity
Ages 50 years to 65 years · Ask the team who can join
Iran
This study compares bupropion and sertraline for depression in people with Parkinson's.
Testing a treatment or activity
Age range not listed · Ask the team who can join
Iran
Researchers are comparing these approaches alongside usual care and measuring tiredness in Parkinson's.
Testing a treatment or activity
Ages 60 years to 85 years · Ask the team who can join
Iran
Researchers are testing electrical stimulation through the scalp alongside usual swallowing treatment in Parkinson's.
Testing a treatment or activity
Age 18 years and over · Ask the team who can join
Iran
Researchers are testing a family-focused programme and measuring the burden of caring for someone with Parkinson's.
Testing a treatment or activity
Age 60 years and over · Ask the team who can join
Iran
This study compares protein distribution across meals and measures movement and blood proteins in Parkinson's.
Testing a treatment or activity
Age range not listed · Ask the team who can join
Iran
Researchers are testing whether adding these exercises to stretching and fatigue management affects tiredness in Parkinson's.
Testing a treatment or activity
Age 50 years and over · Ask the team who can join
Iran
This study investigates an acupuncture approach that adds electrical stimulation for people with Parkinson's.
Testing a treatment or activity
Age range not listed · Ask the team who can join
Iran
This study tests whether aerobic exercise affects learning in people with Parkinson's who experience freezing while walking.
Testing a treatment or activity
Ages 30 years to 80 years · Ask the team who can join
Iran
This study investigates exercise and changes in health in people with Parkinson's.
Testing a treatment or activity
Ages 30 years to 80 years · 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.