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TAKE PART IN RESEARCH

Find a Parkinson’s study.

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.

992Listed as recruiting
224Not yet recruiting
96Countries and regions

Registry records retrieved 2026-10-13 (UTC). Individual records may have older updates. Recruitment and eligibility must be confirmed with the study team.

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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.

About these summaries and listings

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.

852 matching studies

Most recently updated first
Recruiting · registry statusNCT04991831

Following focused ultrasound treatment for Parkinson’s tremor

United Kingdom, United States

Researchers collect longer-term safety and effectiveness information after an ultrasound procedure for shaking not adequately controlled by medicine.

Learning by observing or collecting information

Ages 30 years to 99 years · Does not accept healthy volunteers

About this study & how to join →Registry updated 2026-03-20
Registry update over 6 months old or not reported
Recruiting · registry statusNCT06506058

Understanding balance signals when walking freezes

United States

Researchers study how the body’s balance system and brain activity contribute to starting or changing movement in Parkinson’s.

Testing a treatment or activity

Ages 21 years to 80 years · Also accepts healthy volunteers

About this study & how to join →Registry updated 2026-03-19
Registry update over 6 months old or not reported
Recruiting · registry statusNCT03217110

Testing stimulation for thinking control and mood

United States

Researchers study whether stimulation of the cerebellum, a part of the brain, affects thinking and mood across several neurological and mental-health conditions.

Testing a treatment or activity

Ages 18 years to 90 years · Also accepts healthy volunteers

About this study & how to join →Registry updated 2026-03-19
Registry update over 6 months old or not reported
Recruiting · registry statusNCT06692920

Studying a movement pathway during brain surgery

United States

Researchers make additional measurements during planned brain stimulation surgery to understand a movement-related pathway in Parkinson’s.

Testing a treatment or activity

Ages 21 years to 75 years · Does not accept healthy volunteers

About this study & how to join →Registry updated 2026-03-16
Registry update over 6 months old or not reported
Recruiting · registry statusNCT06416345

Testing automatic cues when walking freezes

Netherlands

Researchers compare a device that detects freezing and provides walking cues with usual care, including an assessment of costs.

Testing a treatment or activity

Age range not listed · Does not accept healthy volunteers

About this study & how to join →Registry updated 2026-03-16
Registry update over 6 months old or not reported
Recruiting · registry statusNCT04246437

Using specialised scans in people with automatic body-control problems

United States

Researchers study an imaging approach in people whose nervous system has difficulty regulating functions such as blood pressure.

Testing a treatment or activity

Age 18 years and over · Also accepts healthy volunteers

About this study & how to join →Registry updated 2026-03-16
Registry update over 6 months old or not reported
Recruiting · registry statusNCT05644327

Comparing types of exercise for sleep

Canada

Researchers compare aerobic, strength and combined exercise programmes to study their effects on sleep in Parkinson’s.

Testing a treatment or activity

Age 40 years and over · Does not accept healthy volunteers

About this study & how to join →Registry updated 2026-03-13
Registry update over 6 months old or not reported
Recruiting · registry statusNCT07467460

Developing more personalised diagnosis and care

Italy

Researchers study approaches to diagnosis and treatment tailored to individual differences in Parkinson’s and Alzheimer’s disease.

Learning by observing or collecting information

Age 18 years and over · Also accepts healthy volunteers

About this study & how to join →Registry updated 2026-03-12
Registry update over 6 months old or not reported
Recruiting · registry statusNCT07465107

Combining movement and thinking exercises

Denmark

Researchers test a programme that brings together different exercise approaches in people with moderate to advanced Parkinson’s.

Testing a treatment or activity

Age 18 years and over · Does not accept healthy volunteers

About this study & how to join →Registry updated 2026-03-11
Registry update over 6 months old or not reported
Recruiting · registry statusNCT06804642

Testing spinal stimulation through the skin

United States

Researchers study stimulation delivered through the skin over the spinal cord, focusing on walking and body-control problems in Parkinson’s.

Testing a treatment or activity

Ages 18 years to 80 years · Does not accept healthy volunteers

About this study & how to join →Registry updated 2026-03-11
Registry update over 6 months old or not reported
Recruiting · registry statusNCT07386015

Following people to understand freezing while walking

China

Researchers collect information across centres to understand causes, patterns and outcomes of episodes when people cannot keep walking.

Learning by observing or collecting information

Ages 30 years to 85 years · Does not accept healthy volunteers

About this study & how to join →Registry updated 2026-03-10
Registry update over 6 months old or not reported
Recruiting · registry statusNCT06402955

Using brain scans to understand depression

United States

Researchers look for brain changes associated with depression in Parkinson’s that could guide future treatment research.

Testing a treatment or activity

Ages 40 years to 80 years · Also accepts healthy volunteers

About this study & how to join →Registry updated 2026-03-10
Registry update over 6 months old or not reported
Recruiting · registry statusNCT07455760

How deep brain circuits help organise speech

United States

Researchers study brain activity involved in putting speech sounds in order in people who receive implanted brain stimulators.

Testing a treatment or activity

Age 18 years and over · Does not accept healthy volunteers

About this study & how to join →Registry updated 2026-03-09
Registry update over 6 months old or not reported
Recruiting · registry statusNCT07284290

Understanding why thinking abilities fluctuate in Lewy body dementia

United States

Researchers use biological markers and brain scans to study changes in a brain signalling system and fluctuations in thinking.

Testing a treatment or activity

Ages 50 years to 89 years · Also accepts healthy volunteers

About this study & how to join →Registry updated 2026-03-06
Registry update over 6 months old or not reported
Recruiting · registry statusNCT06582121

Comparing sleep problems in Parkinson’s and a dream-sleep disorder

France

Researchers across centres study sleep in people with Parkinson’s and people with isolated dream-sleep movement disorder.

Testing a treatment or activity

Age 18 years and over · Also accepts healthy volunteers

About this study & how to join →Registry updated 2026-03-06
Registry update over 6 months old or not reported
Recruiting · registry statusNCT07353463

Following Parkinson’s and a related condition in Shanghai

China

Researchers collect detailed clinical information on people with Parkinson’s or multiple system atrophy to support understanding and future research.

Learning by observing or collecting information

Age range not listed · Does not accept healthy volunteers

About this study & how to join →Registry updated 2026-03-05
Registry update over 6 months old or not reported
Recruiting · registry statusNCT07449117

Testing stimulation for understanding sentences

Czech Republic

Researchers study immediate effects of stimulation aimed at a deep brain area on sentence processing and brain connections.

Testing a treatment or activity

Ages 60 years to 80 years · Does not accept healthy volunteers

About this study & how to join →Registry updated 2026-03-04
Registry update over 6 months old or not reported
Recruiting · registry statusNCT06848205

Looking for brain signals related to freezing while walking

United States

Researchers use a brain stimulation device that can record activity to investigate causes and signs of walking freezes in Parkinson’s.

Testing a treatment or activity

Ages 21 years to 75 years · Does not accept healthy volunteers

About this study & how to join →Registry updated 2026-03-03
Registry update over 6 months old or not reported
Recruiting · registry statusNCT05962489

Tailoring implanted brain stimulation to sleep

United States

Researchers study brain stimulation specifically aimed at sleep and wakefulness problems in Parkinson’s.

Testing a treatment or activity

Age 21 years and over · Does not accept healthy volunteers

About this study & how to join →Registry updated 2026-03-03
Registry update over 6 months old or not reported
Recruiting · registry statusNCT05656586

Recording brain activity to understand stimulation effects

United States

Researchers use a recording-capable implanted brain stimulator to study how stimulation affects brain activity in Parkinson’s.

Learning by observing or collecting information

Age range not listed · Does not accept healthy volunteers

About this study & how to join →Registry updated 2026-03-03
Registry update over 6 months old or not reported

WORLDWIDE COVERAGE

One place to follow the research.

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.

ClinicalTrials.gov

Import available

Last complete check: 2026-10-13

4689 related source records before matching duplicates

WHO ICTRP

Import available

Last complete check: 2026-10-13

4384 related source records before matching duplicates

European CTIS

Import available

Last complete check: 2026-10-13

73 related source records before matching duplicates

National registries and their WHO processing dates
  • Australian New Zealand Clinical Trials Registry — 5 October 2026
  • Chinese Clinical Trial Registry — 5 October 2026
  • ClinicalTrials.gov — 5 October 2026
  • Clinical Trials Information System (CTIS) — 5 October 2026
  • EU Clinical Trials Register (EU-CTR) — 5 October 2026
  • ISRCTN — 5 October 2026
  • The Netherlands National Trial Register — 5 October 2026
  • Brazilian Clinical Trials Registry (ReBec) — 14 September 2026
  • Clinical Trials Registry - India — 14 September 2026
  • Clinical Research Information Service - Republic of Korea — 5 October 2026
  • Cuban Public Registry of Clinical Trials — 14 September 2026
  • German Clinical Trials Register — 14 September 2026
  • Iranian Registry of Clinical Trials — 1 June 2026
  • Japan Registry of Clinical Trials (jRCT) — 14 September 2026
  • Pan African Clinical Trial Registry — 14 September 2026
  • Sri Lanka Clinical Trials Registry — 14 September 2026
  • Thai Clinical Trials Registry (TCTR) — 3 August 2026
  • Peruvian Clinical Trials Registry (REPEC) — 30 March 2026
  • Lebanese Clinical Trials Registry (LBCTR) — 2 February 2026
  • International Traditional Medicine Clinical Trial Registry (ITMCTR) — 3 August 2026

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.