Testing prasinezumab in early Parkinson’s
Researchers are checking the effects and safety of the study medicine prasinezumab, given through a vein, compared with an inactive treatment.
Testing a treatment or activity · Study reference: NCT07174310
Plain-language introduction written with AI from the registry; not independently checked by a clinician. Read the original details below ↓
Open the official registry record ↗Who can join?
Ages 50 years to 85 years · Does not accept healthy volunteers
These are starting points, not the full rules. The research team can tell you whether the study is right for your situation.
Read all the rules for taking part
Sex eligibility reported by registry: all
Full study name & original research details
Official study title
A Phase III, Randomized, Double-Blind, Placebo-Controlled, Multicenter Study to Evaluate the Efficacy and Safety of Intravenous Prasinezumab in Participants With Early-Stage Parkinson's Disease
Short title used by the registry
A Study to Evaluate the Efficacy and Safety of Intravenous (IV) Prasinezumab in Participants With Early-Stage Parkinson's Disease
Original description
Conditions reported: Parkinson's Disease
- Study type
- Interventional
- Interventions
- Prasinezumab; Placebo
- Phases
- PHASE3
- Sponsor
- Hoffmann-La Roche
- Start date reported by registry
- 2025-11-24 (actual)
Registry updated: 2026-10-06 · Status last verified by the registry submitter: 2026-10
Registry records retrieved 2026-10-11 (UTC). Individual records may have older updates. Recruitment and eligibility must be confirmed with the study team.
Contact the research team
Public study contacts supplied to the registry. Ask whether recruitment is still open and what participation involves.
Reference Study ID Number: BN44715 https://forpatients.roche.com/ No attachments to email below. · 888-662-6728 (U.S. and Canada) · global-roche-genentech-trials@gene.com
Fastest response: use the inquiry form. https://www.gene.com/contact-us/submit-medical-inquiry
Study locations
Site status can differ from overall study status. “Status not reported” means local availability needs confirmation. Remote participation and travel arrangements must be checked with the team.
University of Alabama at Birmingham
Birmingham, Alabama, United States
RecruitingBarrow Neurological Institute
Phoenix, Arizona, United States
RecruitingNeurology Center of North Orange County
Fullerton, California, United States
RecruitingUC San Diego
La Jolla, California, United States
RecruitingKeck School of Medicine of USC
Los Angeles, California, United States
RecruitingUCLA Neurology Outpatient Clinic
Los Angeles, California, United States
RecruitingParkinson?s Research Centers of America ? Palo Alto
Palo Alto, California, United States
RecruitingProfound Research LLC at The Neurology Center of Southern California
Pasadena, California, United States
RecruitingUCSF Weill Institute for Neurosciences
San Francisco, California, United States
RecruitingStanford Neuroscience Health Center (SNHC)
Stanford, California, United States
RecruitingRocky Mountain Movement Disorders
Englewood, Colorado, United States
RecruitingInstitute for Neurodegenerative Disorders
New Haven, Connecticut, United States
RecruitingGeorgetown University
Washington D.C., District of Columbia, United States
RecruitingJEM Research LLC
Atlantis, Florida, United States
RecruitingParkinson's Disease and Movement Disorders Center of Boca Raton
Boca Raton, Florida, United States
RecruitingK2 - Villages
Lady Lake, Florida, United States
RecruitingK2 Medical Research-Maitland
Maitland, Florida, United States
RecruitingBaptist Hospital of Miami
Miami, Florida, United States
RecruitingCharter Research - Winter Park/Orlando
Orlando, Florida, United States
RecruitingAdvent Health Orlando
Orlando, Florida, United States
RecruitingUSF Parkinsons Disease and Movement Disorders Center
Tampa, Florida, United States
RecruitingGrady Memorial Hospital
Atlanta, Georgia, United States
RecruitingHawaii Pacific Neuroscience
Honolulu, Hawaii, United States
RecruitingNorthwestern University Feinberg School Of Medicine
Chicago, Illinois, United States
RecruitingUniversity of Kansas Medical Center
Kansas City, Kansas, United States
RecruitingMassachusetts General Hospital
Boston, Massachusetts, United States
RecruitingQuest Research Institute
Farmington Hills, Michigan, United States
RecruitingWashington Uni School of Medicine
St Louis, Missouri, United States
RecruitingCleveland Clinic Lou Ruvo
Las Vegas, Nevada, United States
RecruitingRenown Health
Reno, Nevada, United States
RecruitingHackensack University Medical Center;Department of Neurology, Neuroscience Institute
Paramus, New Jersey, United States
RecruitingUniversity of New Mexico
Albuquerque, New Mexico, United States
RecruitingDent Neurological Institute
Amherst, New York, United States
RecruitingParkinson's Research Centers of America - Long Island
Commack, New York, United States
RecruitingWeill Cornell Medical College
New York, New York, United States
RecruitingColumbia University Medical Center
New York, New York, United States
RecruitingAsheville Neurology
Asheville, North Carolina, United States
RecruitingDuke University Medical Center
Durham, North Carolina, United States
RecruitingNeuroCare Center
Canton, Ohio, United States
RecruitingCleveland Clinic
Cleveland, Ohio, United States
RecruitingThe Movement Disorder Clinic of Oklahoma
Tulsa, Oklahoma, United States
RecruitingOregon Health and Science University
Portland, Oregon, United States
RecruitingUniversity Pennsylvania Hospital
Philadelphia, Pennsylvania, United States
RecruitingAllegheny General Hospital
Pittsburgh, Pennsylvania, United States
RecruitingAvera Medical Group
Sioux Falls, South Dakota, United States
RecruitingVeracity Neuroscience
Memphis, Tennessee, United States
RecruitingVanderbilt University Medical Center
Nashville, Tennessee, United States
RecruitingTexas Neurology PA
Dallas, Texas, United States
RecruitingCentral Texas Neurology Consultants
Round Rock, Texas, United States
RecruitingUniversity of Vermont Medical Center
Burlington, Vermont, United States
RecruitingUniversity of Virginia Health System
Charlottesville, Virginia, United States
RecruitingVCU Health North Hospital
Richmond, Virginia, United States
RecruitingWest Virginia University
Morgantown, West Virginia, United States
RecruitingSouthern Neurology
Kogarah, New South Wales, Australia
RecruitingWestmead Hospital
Westmead, New South Wales, Australia
RecruitingPrincess Alexandra Hospital
Woolloongabba, Queensland, Australia
RecruitingMonash Health
Clayton, Victoria, Australia
RecruitingRoyal Melbourne Hospital
Parkville, Victoria, Australia
RecruitingThe Alfred Hospital
Prahan, Victoria, Australia
RecruitingPerron Institute for Neurological and Translational Science
Nedlands, Western Australia, Australia
RecruitingMedizinische Universität Graz
Graz, Austria
RecruitingUniklinik fuer Neurologie, Medizinische Universitaet Innsbruck
Innsbruck, Austria
RecruitingKepler Universitätsklinikum GmbH - Neuromed Campus
Linz, Austria
RecruitingMedizinische Universität Wien
Vienna, Austria
WithdrawnKlinik Ottakring
Vienna, Austria
RecruitingSanta Casa de Misericordia de Salvador
Salvador, Estado de Bahia, Brazil
RecruitingL2 Ip Instituto de Pesquisas Clinicas Ltda ME
Brasília, Federal District, Brazil
RecruitingHospital das Clinicas - UFMG
Belo Horizonte, Minas Gerais, Brazil
RecruitingInstituto de Neurologia de Curitiba
Curitiba, Paraná, Brazil
RecruitingNúcleo de Pesquisa do Rio Grande do Sul
Porto Alegre, Rio Grande do Sul, Brazil
RecruitingFaculdade de Medicina de Ribeirão Preto - Universidade de Sao Paulo
Ribeirão Preto, São Paulo, Brazil
RecruitingFaculdade de Medicina de Sao Jose do Rio Preto - FAMERP*X*
São José do Rio Preto, São Paulo, Brazil
RecruitingCentro de Pesquisas Clinicas
São Paulo, São Paulo, Brazil
RecruitingUniversity Health Network
Toronto, Ontario, Canada
RecruitingCHUM
Montreal, Quebec, Canada
RecruitingMontreal Neurological Institute and Hospital
Montreal, Quebec, Canada
RecruitingBeijing Friendship Hospital Affiliated of Capital University of Medical Science
Beijing, China
RecruitingXuanwu Hospital, Capital Medical University
Beijing, China
RecruitingBeijing Tian Tan Hospital,Capital Medical University
Beijing, China
RecruitingBeijing Hospital of Ministry of Health
Beijing, China
RecruitingThe First Hospital of Jilin University
Changchun, China
RecruitingWest China Hospital of Sichuan University
Chengdu, China
RecruitingThe First Affiliated Hospital, Chongqing Medical University
Chongqing, China
RecruitingFujian Medical University Union Hospital
Fuzhou, China
RecruitingThe First Affiliated Hospital of Sun Yat-sen University
Guangzhou, China
RecruitingGuangdong Provincial People's Hospital
Guangzhou, China
RecruitingThe First Affiliated Hospital of Guangzhou Medical University
Guangzhou, China
RecruitingThe Second Affiliated Hospital of Zhejiang University School of Medicine
Hangzhou, China
RecruitingSir Run Run Shaw Hospital, School of Medicine, Zhejiang University
Hangzhou, China
RecruitingNanjing Brain Hospital
Nanjing, China
RecruitingRuijin Hospital Shanghai Jiaotong University School of Medicine
Shanghai, China
RecruitingHuashan Hospital, Fudan University
Shanghai, China
RecruitingRenji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine
Shanghai, China
RecruitingThe Second Affiliated Hospital of Soochow University
Suzhou, China
RecruitingTianjin Medical University General Hospital
Tianjin, China
RecruitingFirst Affiliated Hospital of Medical College of Xi'an Jiaotong University
Xi'an, China
RecruitingThe Affiliated Hospital of Xuzhou Medical University
Xuzhou, China
RecruitingAarhus Universitetshospital Skejby
Aarhus N, Denmark
RecruitingRegionshospitalet Gødstrup;Neurologisk Afdeling
Herning, Denmark
RecruitingBispebjerg Hospital;Neurologisk Afdeling
København NV, Denmark
RecruitingAP-HM- Hôpital de La Timone
Marseille, Bouches-du-Rhône, France
RecruitingHospices Civils de Lyon - Hôpital Pierre Wertheimer
Bron, Rhône, France
RecruitingCHU de Clermont-Ferrand - Site Gabriel-Montpied
Clermont-Ferrand, France
RecruitingAPHP - Hopital Henri Mondor
Créteil, France
RecruitingCHU de Grenoble - Hôpital André Michallon
La Tronche, France
RecruitingHopital Roger Salengro
Lille, France
RecruitingCHU de Limoges - Hôpital Dupuytren
Limoges, France
RecruitingCHU de Montpellier - Hôpital Gui de Chauliac
Montpellier, France
RecruitingCHU de Nice Hopital Pasteur
Nice, France
RecruitingAPHP - Hopital de la Pitie Salpetriere
Paris, France
RecruitingCHU de Toulouse - Hôpital Purpan
Toulouse, France
RecruitingKliniken Beelitz GmbH
Beelitz, Germany
RecruitingCharite Universitätsmed. Berlin
Berlin, Germany
RecruitingCharite Universitaetsmedizin Berlin - Campus Benjamin Franklin
Berlin, Germany
RecruitingSt. Josef-Hospital, Klinik für Neurologie
Bochum, Germany
RecruitingUniversitätsklinikum "Carl Gustav Carus"
Dresden, Germany
RecruitingHeinrich-Heine Universitätsklinik Düsseldorf
Düsseldorf, Germany
RecruitingUniversitätsklinikum Erlangen, Abteilung Molekulare Neurologie
Erlangen, Germany
RecruitingUniversitätsklinikum Freiburg, Klinik für Neurologie und Neurophysiologie
Freiburg im Breisgau, Germany
RecruitingMedizinische Hochschule Hannover, Klinik für Neurologie
Hanover, Germany
RecruitingUniversitätsklinikum Heidelberg, Neurologische Klinik, Abteilung für Neuroradiologie
Heidelberg, Germany
RecruitingUniversität Des Saarlandes
Homburg, Germany
RecruitingParacelsus Elena Klinik Kassel
Kassel, Germany
RecruitingKlinikum rechts der Isar der TU München
Munich, Germany
RecruitingLMU Klinikum, Neurologische Klinik und Poliklinik
München, Germany
RecruitingUniversitatsklinikum Munster
Münster, Germany
RecruitingUniversitaettsklinikum Tübingen
Tübingen, Germany
RecruitingUniversitätsklinikum Würzburg, Neurologische Klinik und Poliklinik
Würzburg, Germany
RecruitingUniversità degli studi della Campania Luigi Vanvitelli
Naples, Campania, Italy
RecruitingAz. Osp. OO.RR. S. Giovanni di Dio e Ruggi D' Aragona
Salerno, Campania, Italy
RecruitingOspedale Bellaria
Bologna, Emilia-Romagna, Italy
RecruitingSan Raffaele Cassino
Cassino, Lazio, Italy
RecruitingIRCCS San Raffaele;Clinical Trial Center
Rome, Lazio, Italy
RecruitingPoliclinico Universitario Agostino Gemelli
Rome, Lazio, Italy
RecruitingIrccs A.O.U.San Martino Ist
Genoa, Liguria, Italy
RecruitingAzienda Ospedaliera Spedali Civili
Brescia, Lombardy, Italy
RecruitingCentro Parkinson e Parkinsonismi
Milan, Lombardy, Italy
RecruitingIRCCS Ospedale San Raffaele
Milan, Lombardy, Italy
RecruitingIRCCS Istituto Neurologico Carlo Besta
Milan, Lombardy, Italy
RecruitingA.O. Universitaria Pisana
Pisa, Tuscany, Italy
RecruitingAzienda Ospedaliera di Padova
Padova, Veneto, Italy
RecruitingInstituto Nacional de Neurologia y Neurocirugia
Mexico City, Mexico CITY (federal District), Mexico
RecruitingHospital General de Mexico
Mexico City, Mexico CITY (federal District), Mexico
RecruitingPodlaskie Centrum Psychogeriatrii
Bia?ystok, Poland
WithdrawnNZOZ Vitamed
Bydgoszcz, Poland
RecruitingSzpital Sw. Wojciecha
Gda?sk, Poland
RecruitingNEURO-CARE Sp. z o.o. Sp. Komandytowa
Katowice, Poland
RecruitingKrakowska Akademia Neurologii Sp z o.o. Centrum Neurologii K
Krakow, Poland
RecruitingIndywidualna Praktyka Lekarska Prof. Dr Hab. N. Med. Konrad Rejdak.
Lublin, Poland
RecruitingInstytut Zdrowia Dr Boczarska-Jedynak Sp. z o.o. Sp. k.
Oświęcim, Poland
RecruitingNmedis sp. z o.o.
Rzeszów, Poland
RecruitingNeuroProtect
Warsaw, Poland
RecruitingMazowiecki Szpital Bródnowski w Warszawie Sp. z o.o.
Warsaw, Poland
RecruitingHospital de Braga
Braga, Portugal
RecruitingHospital da Luz Coimbra
Coimbra, Portugal
RecruitingHospital Dr. Nélio Mendonça;Serviço de Neurologia
Funchal, Portugal
RecruitingHospital da Senhora da Oliveira-Guimarães
Guimarães, Portugal
RecruitingHospital de Santa Maria
Lisbon, Portugal
RecruitingHospital Pedro Hispano
Matosinhos Municipality, Portugal
RecruitingCNS - Campus Neurológico
Torres Vedras, Portugal
RecruitingSeverance Hospital, Yonsei University Health System
Seoul, South Korea
RecruitingAsan Medical Center
Seoul, South Korea
RecruitingSamsung Medical Center
Seoul, South Korea
RecruitingBoramae Medical Center
Seoul, South Korea
RecruitingKorea University Guro Hospital
Seoul, South Korea
RecruitingSeoul National University Hospital
Seoul, South Korea
RecruitingHospital General Universitario de Elche
Elche, Alicante, Spain
RecruitingHospital General De Catalunya
Sant Cugat del Vallès, Barcelona, Spain
RecruitingPoliclinica Guipuzcoa
Donostia / San Sebastian, Guipuzcoa, Spain
RecruitingComplejo Hospitalario Universitario A Coruña
A Coruña, LA Coruna, Spain
RecruitingHospital Universitario Fundación Alcorcón
Alcorcón, Madrid, Spain
RecruitingHospital Quiron de Madrid
Pozuelo de Alarcón, Madrid, Spain
RecruitingHospital Universitari Vall d Hebron
Barcelona, Spain
RecruitingHospital Clinic Barcelona
Barcelona, Spain
RecruitingHospital Ruber Juan Bravo
Madrid, Spain
RecruitingHospital Universitario de La Princesa
Madrid, Spain
RecruitingHospital Univ 12 de Octubre
Madrid, Spain
RecruitingHospital Regional Universitario de Malaga ? Hospital General
Málaga, Spain
RecruitingHospital Universitario Virgen del Rocio
Seville, Spain
RecruitingChanghua Christian Hospital
Changhua County, Taiwan
RecruitingChina Medical University Hospital
North Dist., Taiwan
RecruitingNational Cheng Kung University Hospital
Tainan, Taiwan
RecruitingNational Taiwan University Hospital
Taipei, Taiwan
RecruitingTaipei Veterans General Hospital
Taipei, Taiwan
RecruitingChang Gung Memorial Hospital - Linkou
Taoyuan City, Taiwan
RecruitingNinewells Hospital, Dundee- Scotland
Dundee, United Kingdom
RecruitingRoyal Devon and Exeter Hospital (Wonford)
Exeter, United Kingdom
RecruitingRoyal London Hospital
London, United Kingdom
RecruitingCharing Cross Hospital
London, United Kingdom
RecruitingCampus for Ageing and Vitality
Newcastle, United Kingdom
RecruitingOxford University Hospitals NHS Foundation Trust
Oxford, United Kingdom
RecruitingPlymouth Hospitals NHS Trust - Derriford Hospital
Plymouth,Devon, United Kingdom
RecruitingThe original descriptions and participation rules come from the registry. Participation is voluntary and does not guarantee benefit.