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Parkinson disease trials, also abroad

869 open Parkinson disease trials worldwide. Travel and costs are your own unless the study pays them; ask the study team first.

CountryOpen trials
United States294
China102
Italy76
France65
Türkiye46
Germany45
United Kingdom44
Spain39
Canada37
Netherlands35
Switzerland26
Taiwan23
Belgium20
Sweden17
Israel16
Poland16
Brazil15
Czechia15
South Korea15
Austria12
Pakistan10
Australia9
Japan9
Hong Kong8
Egypt7
Greece5
Portugal5
Argentina3
Bangladesh3
Iran3
Luxembourg3
Mexico3
Romania3
Bulgaria2
Hungary2
India2
Russia2
United Arab Emirates1
Chile1
Finland1
Croatia1
Ireland1
Jordan1
Kuwait1
Monaco1
Nigeria1
Norway1
Philippines1
Puerto Rico1
Qatar1
Thailand1

The same trial often runs in several countries

A Study to Evaluate the Efficacy and Safety of Intravenous (IV) Prasinezumab in Participants With Early-Stage Parkinson's Disease has 3 sites in Denmark and runs in 18 countries. If a site near you is full, another one may still take people.

See A Study to Evaluate the Efficacy and Safety of Intravenous (IV) Prasinezumab in Participants With Early-Stage Parkinson's Disease in all 18 countries