A Study to Assess the Safety of GRF6021 Infusions in Subjects With Parkinson's Disease and Cognitive Impairment
Public ClinicalTrials.gov record NCT03713957. 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.
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 Study to Assess the Safety and Tolerability of GRF6021 Infusions in Subjects With Parkinson's Disease and Cognitive Impairment
Study identification
- NCT ID
- NCT03713957
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Lead sponsor
- Alkahest, Inc.
- Industry
- Enrollment
- 79 participants
Conditions and interventions
Conditions
Interventions
- GRF6021 Drug
- Placebo Other
Drug · Other
Eligibility (public fields only)
- Age range
- 40 Years to 85 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
- Nov 11, 2018
- Primary completion
- Jul 19, 2020
- Completion
- Jul 19, 2020
- Last update posted
- May 8, 2022
2018 – 2020
United States locations
- U.S. sites
- 19
- U.S. states
- 11
- U.S. cities
- 18
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Clinical Trials, Inc. | Little Rock | Arkansas | 72205 | — |
| Rocky Mountain Movement Disorders Center | Englewood | Colorado | 80113 | — |
| Moonshine Research Center | Doral | Florida | 33166 | — |
| Riverside Clinical Research | Edgewater | Florida | 32132 | — |
| MD Clinical | Hallandale | Florida | 33009 | — |
| Research Centers of America, LLC | Hollywood | Florida | 33024 | — |
| Suncoast Research Group, LLC | Miami | Florida | 33135 | — |
| Qps_Mra, Llc | South Miami | Florida | 33143 | — |
| Atlanta Center for Medical Research | Atlanta | Georgia | 30331 | — |
| NeuroTrials Research Inc. | Atlanta | Georgia | 30342 | — |
| Quest Research Institute | Farmington Hills | Michigan | 48334 | — |
| SRI Biosciences | Plymouth | Michigan | 48170 | — |
| PsychCare Consultants Research | St Louis | Missouri | 63128 | — |
| Wake Research | Raleigh | North Carolina | 27612 | — |
| Cleveland Clinic | Cleveland | Ohio | 44195 | — |
| Oregon Health & Science University | Portland | Oregon | 97239 | — |
| UT Southwestern Medical Center | Dallas | Texas | 75390 | — |
| Centex Studies, INC. | Houston | Texas | 77058 | — |
| Northwest Clinical Research Center | Bellevue | Washington | 98007 | — |
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 10 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03713957, 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 May 8, 2022 · Synced Jul 23, 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 protocol, eligibility criteria, and contact information for NCT03713957 live on ClinicalTrials.gov.