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Active, not recruiting Phase 2 Interventional

A Study to Assess the Efficacy, Safety, and Pharmacokinetics of FNP-223 to Slow Progression of Progressive Supranuclear Palsy (PSP)

ClinicalTrials.gov ID: NCT06355531

Public ClinicalTrials.gov record NCT06355531. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 28, 2026, 1:40 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Randomized, Double-blind, Placebo-controlled, Phase 2 Study to Assess the Efficacy, Safety, and Pharmacokinetics of FNP-223 (Oral Formulation) to Slow the Disease Progression of Progressive Supranuclear Palsy (PSP) (PROSPER)

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

PROSPER trial is a trial to assess the efficacy of FNP-223 in slowing disease progression in participants with PSP as measured by the PSP Rating Scale (PSPRS) over 52 weeks and to assess the safety and tolerability of FNP-223 for 52 weeks in participants with PSP.

Study identification

NCT ID
NCT06355531
Recruitment status
Active, not recruiting
Study type
Interventional
Phase
Phase 2
Lead sponsor
Ferrer Internacional S.A.
Industry
Enrollment
241 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
50 Years to 80 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Jul 23, 2024 (Actual)
Primary completion
Nov 2026 (Estimated)
Completion
Nov 2026 (Estimated)
Last update posted
Oct 15, 2025

2024 – 2026

United States locations

U.S. sites
12
U.S. states
10
U.S. cities
11
Facility City State ZIP Site status
The Neurology Center of Southern California - Carlsbad Carlsbad California 92011 —
UCSF Weill Institute for Neurosciences San Francisco California 94158 —
Rocky Mountain Movement Disorders Center Denver Colorado 80113 —
University of Miami Miller School of Medicine Miami Florida 33136 —
Augusta University Augusta Georgia 30912 —
Massachusetts General Hospital Boston Massachusetts 02114 —
Quest Research Institute Farmington Hills Michigan 48334 —
Robert & John M. Bendheim Parkinson and Movement Disorders Center at Mount Sinai New York New York 10029 —
Columbia University Irving Medical Center New York New York 10032 —
Duke Neurology Durham North Carolina 27705 —
Vanderbilt University Medical Center Nashville Tennessee 37212 —
Central Texas Neurology Consultants Round Rock Texas 78681 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 32 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT06355531, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Oct 15, 2025 · Synced Oct 28, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT06355531 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →