Drugs / Prasinezumab
last change Dec 2025 re-read 3 minutes ago

Prasinezumab

also known as PRX002 · RG7935 · RO7046015

Monoclonal antibody targets SNCA

Developed for
Parkinson disease
Investigated by
Hoffmann-La Roche · Prothena Biosciences Ltd. · University Hospital Tuebingen

Trials 6

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 12 trials · 2 met primary
Phase 1 NCT02157714 Jun 2014 → Sep 2016 Parkinson disease Prothena Biosciences Ltd. Completed Met primary
Phase 1 NCT02095171 Mar → Dec 2014 Parkinson disease Prothena Biosciences Ltd. Completed Met primary
Phase 23 trials · 2 missed
Phase 2 NCT07055087 Dec 2025 → Dec 2030 expected Parkinson disease University Hospital Tuebingen Not yet recruiting No outcome recorded
Phase 2 NCT04777331 May 2021 → Sep 2024 overdue Parkinson disease Hoffmann-La Roche Active not recruiting Missed primary
Phase 2 NCT03100149 Jun 2017 → Nov 2019 overdue Parkinson disease Hoffmann-La Roche Active not recruiting Missed primary
Phase 31 trial
Phase 3 NCT07174310 Nov 2025 → Jun 2029 expected Parkinson disease Hoffmann-La Roche Recruiting No outcome recorded

News releases announcing trial results or a regulatory action · 16

DateIssuerRelease
2025-06-16 Hoffmann-La Roche Results Roche to advance prasinezumab into Phase III development for early-stage Parkinson's disease roche.com ↗
Multiple endpoints from the PADOVA and OLE studies suggest a potential clinical benefit of prasinezumab when added to effective symptomatic treatment in early-stage Parkinson’s disease.
2025-06-16 Prothena Biosciences Ltd. Results Prothena’s Partner Roche to Advance Prasinezumab into Phase III Development for Early-Stage Parkinson's Disease prothena.com ↗
Multiple endpoints from the PADOVA and OLE studies suggest a potential clinical benefit of prasinezumab when added to effective symptomatic treatment in early-stage Parkinson’s disease.
2025-04-03 Hoffmann-La Roche Results Roche presents novel therapeutic and diagnostic advancements in Alzheimer’s at AD/PD 2025 roche.com ↗
Results from the Phase IIb PADOVA study were presented for the first time, investigating prasinezumab in 586 people with early-stage Parkinson’s disease while on stable symptomatic treatment.
2024-12-19 Hoffmann-La Roche Results Roche’s Phase IIb study of prasinezumab missed primary endpoint, but suggests possible benefit in early-stage Parkinson’s disease roche.com ↗
Roche (SIX: RO, ROG; OTCQX: RHHBY) announced today results from the Phase IIb PADOVA study investigating prasinezumab in 586 people with early-stage Parkinson’s disease, treated for a minimum of 18 months while on stable symptomatic treatment.
2024-12-19 Prothena Biosciences Ltd. Results Roche’s Phase IIb Study of Prasinezumab Missed Primary Endpoint, But Suggests Possible Clinical Benefit in Early-Stage Parkinson’s Disease prothena.com ↗
Prothena Corporation plc (NASDAQ:PRTA), today announced results from the Phase IIb PADOVA study conducted by partner Roche investigating prasinezumab in 586 people with early-stage Parkinson’s disease, treated for a minimum of 18 months while on stable symptomatic treatment.
2022-03-16 Prothena Biosciences Ltd. Results Prothena Presents New Data for Alzheimer’s and Parkinson’s Disease Programs at AD/PD 2022 prothena.com ↗
Oral presentation by partner Roche on the Phase 2 PASADENA study of prasinezumab, an α-synuclein antibody being developed for the treatment of Parkinson’s, further supports a potential effect on delaying motor progression in patients
2021-06-15 Hoffmann-La Roche Results Roche data at EAN 2021 showcase significant impact of therapies across diverse neuroscience portfolio roche.com ↗
In the PASADENA study, prasinezumab was the first anti-alpha-synuclein antibody to show evidence of slowing clinical decline of PD motor signs and demonstrated a favourable safety profile.
2021-03-08 Prothena Biosciences Ltd. Results Prothena to Hold Investor Webcast to Review Three Oral Presentations from AD/PD 2021 prothena.com ↗
New analyses of prasinezumab continue to support potential disease modifying effect of prasinezumab in Parkinson’s disease;
2020-09-11 Prothena Biosciences Ltd. Results Prasinezumab Slows Progression on Measures of Parkinson’s Disease in Phase 2 Study prothena.com ↗
In the study, prasinezumab significantly reduced decline in motor function by 35% (pooled dose levels) vs. placebo after one year of treatment
2020-04-22 Prothena Biosciences Ltd. Results Update on Phase 2 PASADENA Study of Prasinezumab (PRX002/RG7935) in Parkinson’s Disease prothena.com ↗
As updated by Roche during its 1Q20 earnings announcement , the study did not meet the primary objective, but showed signals of efficacy.
2018-06-19 Prothena Biosciences Ltd. Results Prothena Announces Phase 1b Clinical Trial Results of PRX002/RG7935 for Parkinson's Disease Published in JAMA Neurology prothena.com ↗
CNS penetration was demonstrated by a dose-dependent increase in PRX002/RG7935 levels in CSF, and a mean concentration of PRX002/RG7935 in CSF of 0.3 percent relative to serum across all dose levels.
2017-04-02 Prothena Biosciences Ltd. Results Clinical Results Presented from Prothena's Phase 1b Study of PRX002/RG7935 Demonstrating Robust Antibody CNS Penetration and Significant Reduction of Free Serum Alpha-synuclein in Patients with Parkinson's Disease prothena.com ↗
All dose levels of PRX002/RG7935 found to have an acceptable safety and tolerability profile, meeting the primary objective of this study

All press releases naming this drug 24 releases

DateIssuerRelease

Evidence & citations 7 cited values

Every value below carries the sentence it was read from. 8 sources stand behind the page.

FieldValueCited text
Known as Prasinezumab ClinicalTrials.gov intervention name — accepted as the source's own label NCT07055087 ↗
2

NCT07174310 ↗

NCT04777331 ↗

Known as PRX002 ClinicalTrials.gov intervention name — accepted as the source's own label NCT02095171 ↗
1

NCT02157714 ↗

Known as RG7935 “PRX002/RG7935 (PRX002) is a humanized monoclonal” PMID 29913017 ↗ Oct 2018
Known as RO7046015 ClinicalTrials.gov intervention name — accepted as the source's own label NCT03100149 ↗
Modality Monoclonal antibody “monoclonal anti-α-synuclein antibody prasinezumab” NCT07055087 ↗
Route Intravenous “Administered by Intravenous Infusion” NCT02095171 ↗
Target SNCA “Alpha-synuclein binding agent” CHEMBL4298077 ↗