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Completed Phase 3 Interventional

Study Evaluating Sumanirole for the Treatment of the Signs and Symptoms of Early Parkinson's Disease

ClinicalTrials.gov ID: NCT00058838

Public ClinicalTrials.gov record NCT00058838. 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 Nov 7, 2026, 4:06 PM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase III, Double-Blind, Placebo-Controlled, Fixed-Dose Response Study Comparing the Efficacy and Safety of Sumanirole Versus Placebo in Patients With Early Parkinson's Disease.

Brief summary

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

The primary purpose of this study is to determine whether sumanirole, at three different dose levels, is effective and safe in the treatment of the signs and symptoms of early Parkinson's disease

Study identification

NCT ID
NCT00058838
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Pfizer
Industry
Enrollment
854 participants

Conditions and interventions

Interventions

Drug

Eligibility (public fields only)

Age range
30 Years and older
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
Apr 2003 (Type not available)
Primary completion
Not listed
Completion
Sep 2004 (Type not available)
Last update posted
Jun 7, 2006

2003 – 2004

United States locations

U.S. sites
69
U.S. states
26
U.S. cities
63
Facility City State ZIP Site status
Pfizer Investigational Site Birmingham Alabama 35249-7340 —
Pfizer Investigational Site Birmingham Alabama 35294 —
Pfizer Investigational Site Huntsville Alabama 35801 —
Pfizer Investigational Site Little Rock Arkansas 72205 —
Pfizer Investigational Site Concord California 94520 —
Pfizer Investigational Site Irvine California 92618 —
Pfizer Investigational Site La Jolla California 92037 —
Pfizer Investigational Site Loma Linda California 92354 —
Pfizer Investigational Site Oceanside California 92056 —
Pfizer Investigational Site Oxnard California 93030 —
Pfizer Investigational Site San Francisco California 94109 —
Pfizer Investigational Site San Francisco California 94115 —
Pfizer Investigational Site Sunnyvale California 94089 —
Pfizer Investigational Site Walnut Creek California 94598 —
Pfizer Investigational Site Englewood Colorado 80113 —
Pfizer Investigational Site Fort Collins Colorado 85624 —
Pfizer Investigational Site Fairfield Connecticut 06430 —
Pfizer Investigational Site Hartford Connecticut 06106 —
Pfizer Investigational Site Fort Lauderdale Florida 33308 —
Pfizer Investigational Site Jacksonville Florida 32216 —
Pfizer Investigational Site Maitland Florida 32751 —
Pfizer Investigational Site Miami Florida 33136 —
Pfizer Investigational Site Palm Beach Gardens Florida 33410 —
Pfizer Investigational Site Sarasota Florida 34243 —
Pfizer Investigational Site St. Petersburg Florida 33701 —
Pfizer Investigational Site St. Petersburg Florida 33703-2612 —
Pfizer Investigational Site Tallahasse Florida 32308 —
Pfizer Investigational Site Tampa Florida 33609-4052 —
Pfizer Investigational Site Tampa Florida 33614 —
Pfizer Investigational Site Atlanta Georgia 30338 —
Pfizer Investigational Site Decatur Georgia 30033 —
Pfizer Investigational Site Marietta Georgia 30060 —
Pfizer Investigational Site Savannah Georgia 31405 —
Pfizer Investigational Site Elkhart Indiana 46514 —
Pfizer Investigational Site Des Moines Iowa 50309 —
Pfizer Investigational Site Dubuque Iowa 52001 —
Pfizer Investigational Site Kansas City Kansas 66160 —
Pfizer Investigational Site Crestview Hills Kentucky 41017 —
Pfizer Investigational Site Lexington Kentucky 40503 —
Pfizer Investigational Site Louisville Kentucky 40202 —
Pfizer Investigational Site Scarborough Maine 04074 —
Pfizer Investigational Site Baltimore Maryland — —
Pfizer Investigational Site Frederick Maryland 21702 —
Pfizer Investigational Site Southfield Michigan 48034 —
Pfizer Investigational Site Springfield Missouri 65804 —
Pfizer Investigational Site Springfield Missouri 65807 —
Pfizer Investigational Site Las Vegas Nevada 89052 —
Pfizer Investigational Site Lebanon New Hampshire 03766 —
Pfizer Investigational Site Albany New York 12208 —
Pfizer Investigational Site The Bronx New York 10461 —
Pfizer Investigational Site Asheville North Carolina 28801 —
Pfizer Investigational Site Charlotte North Carolina 28209 —
Pfizer Investigational Site Winston-Salem North Carolina 27103 —
Pfizer Investigational Site Canfield Ohio 44406 —
Pfizer Investigational Site Cleveland Ohio 44195 —
Pfizer Investigational Site Dayton Ohio 45408 —
Pfizer Investigational Site Dayton Ohio 45415 —
Pfizer Investigational Site Bend Oregon 97701 —
Pfizer Investigational Site Eugene Oregon 97401 —
Pfizer Investigational Site Portland Oregon 97209 —
Pfizer Investigational Site Sellersville Pennsylvania 18960 —
Pfizer Investigational Site Upland Pennsylvania 19013-3995 —
Pfizer Investigational Site Houston Texas 77030 —
Pfizer Investigational Site San Antonio Texas 78229 —
Pfizer Investigational Site Richmond Virginia 23294 —
Pfizer Investigational Site Spokane Washington 99204 —
Pfizer Investigational Site Tacoma Washington 98405 —
Pfizer Investigational Site Wenatchee Washington 98801 —
Pfizer Investigational Site Milwaukee Wisconsin 53202 —

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 65 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00058838, 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 Jun 7, 2006 · Synced Nov 7, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT00058838 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →