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20,000 Parkinson's patients studied to unlock genetic secrets

NCT ID NCT03866603

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study observed over 20,000 people with Parkinson's disease to find genetic links and potential biomarkers. Participants were between 30 and 80 years old and diagnosed within the last 5 years. No treatments were tested; the goal was to better understand the disease's genetic roots.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

20,112 people

The number who actually took part.

Started

May 2019

Finished

Oct 2024

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Participants clinically diagnosed with Parkinson's Disease (PD)

Ages

30 to 80 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

* Informed consent is obtained from the participant * The participant has been clinically diagnosed with Parkinson's disease within the last 5 years (≤ 5 years) * The participant is between 30 and 80 years old

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Get notified about this study

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • AOUP Secondo Policlinico Federico II Napoli

    Naples, 80131, Italy

  • AZ Damiaan, Department of Neurology

    Ostend, 1008400, Belgium

  • Asklepios Fachklinikum Stadtroda Klinik für Neurologie, Schmerztherapie und Schlafmedizin

    Stadtroda, 07646, Germany

  • Asklepios Klinik Barmbek

    Hamburg, 22291, Germany

  • Asmn - Irccs

    Reggio Emilia, 42123, Italy

  • Barzilai Medical Center

    Ashkelon, 7830604, Israel

  • Booth Gardner Parkinson's Care Center

    Kirkland, Washington, 98034, United States

  • Carolina São Souza

    Ribeirão Preto, 14015-130, Brazil

  • Centro Hospitalar Universitário de São João

    Porto, 4200-319, Portugal

  • Charite University Medicine

    Berlin, 10117, Germany

  • Clinica Universidad de Navarra (CUN)

    Pamplona, 31008, Spain

  • Clinica de Neurocirurgia E Neurofisiologia Ltda

    São Paulo, 1636, Brazil

  • Cukurova University Faculty of Medicine

    Sarıçam, Adana, 01790, Turkey (Türkiye)

  • Dent Neurologic Institue

    Amherst, New York, 14226, United States

  • Department of Neurology, Centre Hospitalier Universitaire (CHU) de Leige

    Liège, 4000, Belgium

  • Diakonie-Klinikum Schwäbisch Hall gGmbH

    Schwäbisch Hall, 74523, Germany

  • Duke University, Department of Neurology

    Durham, North Carolina, 27710, United States

  • Faculdade de Medicina de Ribeirão Preto - USP

    Ribeirão Preto, 14040-900, Brazil

  • Fairfield General Hospital

    Bury, BL9 7TD, United Kingdom

  • Federal University of Health Science of Porto Alegre

    Porto Alegre, Rio Grande do Sul, 90035-190, Brazil

  • Fundação Hospital Adriano Jorge

    Manaus, 1778, Brazil

  • Gertrudis-Kliniken im Parkison-Zentrum

    Biskirchen, 35638, Germany

  • Groupe Hospitalier Paris Saint-Joseph

    Paris, 75014, France

  • HM CINAC | Integrated Neuroscience Center

    Móstoles, 28938, Spain

  • Hadassah Medical Center

    Jerusalem, 91120, Israel

  • Hospital Angelina Caron

    Curitiba, 83430-000, Brazil

  • Hospital Clinico Universitario Santiago de Compostela

    Santiago de Compostela, Corunna, 15706, Spain

  • Hospital Clínico San Carlos

    Madrid, Madrid, 28049, Spain

  • Hospital General Unversitario Gregorio Marañón

    Madrid, 28007, Spain

  • Hospital Ophir Loyola

    Belém, Pará, PA-66063-240, Brazil

  • Hospital Universitari Vall d'Hebron

    Barcelona, Barcelona, 08035, Spain

  • Hospital Universitario Donostia

    San Sebastián, 20014, Spain

  • Hospital Universitario Fundación Alcorcón

    Alcorcón, 28922, Spain

  • Hospital Universitario Pedro Ernesto (HUPE)

    Rio de Janeiro, 20550-000, Brazil

  • Hospital Universitario de Bellvitge

    L'Hospitalet de Llobregat, Barcelona, 08907, Spain

  • Hospital Universitario de La Princesa

    Madrid, Madrid, 28006, Spain

  • Hospital Universitário Walter Cândido/ Universidade Federal do Ceará

    Ceará, 60430-372, Brazil

  • Hospital das Clínicas da Universidade Federal de Minas Gerais

    Belo Horizonte, Minas Gerais, 30130-100, Brazil

  • I.R.C.C.S. San Raffaele Pisana

    Roma, 00163, Italy

  • Imperial College Healthcare NHS Trust

    London, W6 8RF, United Kingdom

  • Indiana University, Department of Neurology

    Indianapolis, Indiana, 46202, United States

  • Inland Northwest Research

    Spokane, Washington, 99202, United States

  • Instituto Investigacion Biocruces

    Barakaldo, 48903, Spain

  • Instituto Israelita de Ensino e Pesquisa Albert Einstein

    São Paulo, 69065-001, Brazil

  • Istanbul Faculty of Medicine

    Istanbul, Istanbul, 34093, Turkey (Türkiye)

  • Kliniken Beelitz

    Beelitz-Heilstätten, 14547, Germany

  • Koc University Hospital

    Istanbul, 34010, Turkey (Türkiye)

  • Linfritz Research Institute

    Coral Gables, Florida, 33134, United States

  • Loma Linda University

    Loma Linda, California, 92354, United States

  • M3 Wake Research, Inc.

    Raleigh, North Carolina, 27612, United States

  • Mediterraneo Hospital

    Athens, 16675, Greece

  • Mersin Faculty of Medicine

    Mersin, Mersin, 33110, Turkey (Türkiye)

  • Michigan Institute for Neurological Disorders

    Farmington Hills, Michigan, 48334, United States

  • Neuro-Pain Medical Center

    Fresno, California, 93710, United States

  • Neurologisches Fachkrankenhaus für Bewegungsstörungen / Parkinson

    Beelitz, 14547, Germany

  • Neurology Department, Hospital de Santa Maria

    Lisbon, 1649-035, Portugal

  • Neuroscience Research Institute of NJ

    Toms River, New Jersey, 08755, United States

  • Newcastle University, Clinical Ageing Research Unit

    Newcastle upon Tyne, NE4 5PL, United Kingdom

  • Northshore University HealthSystem

    Evanston, Illinois, 60201, United States

  • Paracelsus Elena-Klinik

    Kassel, 34128, Germany

  • Parkinson's Disease and Movement Disorder Center of Baco Raton

    Baco Raton, Florida, 33486, United States

  • Pharmacology Research Institute

    Encino, California, 91316, United States

  • Pharmacology Research Institute

    Los Alamitos, California, 90720, United States

  • Pharmacology Research Institute

    Newport Beach, California, 92660, United States

  • Qendra Spitalore University

    Tirana, Albania

  • RAMBAM Medical Center

    Haifa, 3109601, Israel

  • Rabin MC, Beilinson Campus

    Petah Tikva, 4941492, Israel

  • Renstar Medical Research

    Ocala, Florida, 34475, United States

  • Royal Cornwall Hospitals Nhs Trust

    Truro, TR1 3LQ, United Kingdom

  • Royal Devon and Exeter Hospital

    Exeter, EX2 5DW, United Kingdom

  • Royal Preston Hospital, Department of Neurology

    Preston, PR2 9HT, United Kingdom

  • Rush University Medical Center

    Chicago, Illinois, 60612, United States

  • Salford Royal NHS Foundation Trust

    Salford, M6 8HD, United Kingdom

  • Samson Assuta Ashdod University Hospital

    Ashdod, 7747629, Israel

  • Shaare Zedek Medical Center

    Jerusalem, 9103102, Israel

  • Shamir Medical Center

    Be’er Ya‘aqov, Israel

  • Sheba Medical Center

    Ramat Gan, 52621, Israel

  • Soroka Medical Center

    Beersheba, 8457108, Israel

  • South Shore Neurologic Associates

    Patchogue, New York, 11772, United States

  • St. Josef-Hospital

    Bochum, 44791, Germany

  • St. Olav's Hospital

    Trondheim, 7006, Norway

  • Stony Brook University School of Medicine

    Brookhaven, New York, 11772, United States

  • Tel Aviv Sourasky Medical Center - TASMC

    Tel Aviv, 64239, Israel

  • Toronto Western Hospital, University Health Network, University of Toronto

    Toronto, Ontario, M5T 2S8, Canada

  • Tucson Neuroscience Research

    Tucson, Arizona, 85710, United States

  • UZ Leuven, Campus Gasthuisberg

    Leuven, 3000, Belgium

  • Universidade Federal de São Paulo, UNIFESP

    São Paulo, 04040-003, Brazil

  • Universidade Metropolitana De Santos

    Santos, São Paulo, CEP 11.045-002, Brazil

  • University Hospital Marqués de Valdecilla

    Santander, 39008, Spain

  • University Hospital of Antwerp

    Antwerp, 2650, Belgium

  • University of California (UC) San Diego

    La Jolla, California, 92093, United States

  • University of Dundee

    Dundee, DD1 5EH, United Kingdom

  • University of Edinburgh

    Edinburgh, EH16 4SB, United Kingdom

  • University of Oxford, Nuffield Department of Clinical Neurosciences

    Oxford, OX3 9DU, United Kingdom

  • University of Plymouth

    Plymouth, PL6 8BX, United Kingdom

  • University of South Florida

    Tampa, Florida, 33613, United States

  • Università di Pavia, Dipartimento di Medicina Molecolare

    Pavia, 27100, Italy

  • Universitätsklinik Hamburg-Eppendorf

    Hamburg-Eppendorf, 20246, Germany

  • Universitätsklinik für Neurologie

    Aachen, 52074, Germany

  • Universitätsklinik für Neurologie

    Jena, 7740, Germany

  • Universitätsklinikum Carl Gustav Carus die Dresdner

    Dresden, 01307, Germany

  • Universitätsklinikum Leipzig

    Leipzig, 04103, Germany

  • Universitätsklinikum Marburg Klinik und Poliklinik für Neurologie Parkinson Netzwerk Allianz Marburg (PANAMA)

    Marburg, 35043, Germany

  • Universitätsklinikum Schleswig-Holstein Campus Lübeck

    Lübeck, 23538, Germany

  • Universitätsklinikum Schleswig-Holstein, Klinik für Neurologie

    Kiel, 24105, Germany

  • Universitätsklinikum Würzburg

    Würzburg, 97080, Germany

  • Vero Beach Neurology & Research Institute

    Vero Beach, Florida, 32960, United States

  • WR-CRCN

    Las Vegas, Nevada, 89106, United States

  • WR-ClinSearch, LLC

    Chattanooga, Tennessee, 37421, United States

  • Yeovil District Hospital

    Yeovil, BA21 4AT, United Kingdom

More trials for these conditions

Other studies related to the condition(s) this trial covers.