GB001 in Adult Subjects With Moderate to Severe Asthma
Public ClinicalTrials.gov record NCT03683576. 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 Phase 2b, Randomized, Double-blind, Placebo-controlled, Dose-ranging, Multi-center Study to Evaluate the Efficacy and Safety of GB001 as Maintenance Therapy in Adult Subjects With Moderate to Severe Asthma
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
A randomized, double-blind, placebo-controlled, dose-ranging, multi-center study to evaluate the efficacy and safety of GB001 when added to standard-of care (SOC) asthma maintenance therapy in adults with moderate to severe asthma and an eosinophilic phenotype with respect to asthma worsening at the end of 24 weeks of treatment.
Study identification
- NCT ID
- NCT03683576
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Enrollment
- 481 participants
Conditions and interventions
Eligibility (public fields only)
- Age range
- 18 Years to 74 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
- Oct 21, 2018
- Primary completion
- Jul 22, 2020
- Completion
- Aug 17, 2020
- Last update posted
- Sep 15, 2021
2018 – 2020
United States locations
- U.S. sites
- 47
- U.S. states
- 27
- U.S. cities
- 44
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Clinical Research Center of Albama, LLC | Birmingham | Alabama | 35209 | — |
| Banner University of Arizona Medical Center | Tucson | Arizona | 85724 | — |
| California Allergy and Asthma Medical Group | Los Angeles | California | 90025 | — |
| Southern California Institute for Respiratory Diseases, Inc. | Los Angeles | California | 90048 | — |
| North Bay Clinical Trials, Inc | Napa | California | 94558 | — |
| Allergy, Asthma & Sinus Consultants, Inc | Riverside | California | 92506 | — |
| Integrated Research of Inland, Inc. | Riverside | California | 92506 | — |
| Allergy & Asthma Medical Group and Research Center, A P.C. | San Diego | California | 92123 | — |
| Allergy and Asthma Associates of Santa Clara Valley Research Center | San Jose | California | 95117 | — |
| Bensch Clinical Research LLC | Stockton | California | 95207 | — |
| Pulmonary Associates | Colorado Springs | Colorado | 80909 | — |
| Yale New Haven Hospital | New Haven | Connecticut | 06519 | — |
| Central Florida Pulmonary Group, PA | Altamonte Springs | Florida | 32701 | — |
| Central Florida Pulmonary Group, PA | Orlando | Florida | 32803 | — |
| Emerald Coast Research Associates | Panama City | Florida | 32405 | — |
| Allergy and Asthma Diagnostic Treatment Center | Tallahassee | Florida | 32308 | — |
| Clinical Research Trials of Florida, Inc. | Tampa | Florida | 33607 | — |
| The Emory Clinic | Atlanta | Georgia | 30322 | — |
| Atlanta Allergy & Asthma Clinic, PA, | Marietta | Georgia | 30060 | — |
| Atlanta Allergy & Asthma Clinic, PA | Stockbridge | Georgia | 30281 | — |
| Treasure Valley Medical Research | Boise | Idaho | 83706 | — |
| Rush University Medical Center | Chicago | Illinois | 60612 | — |
| Allergy & Asthma Specialists, PSC | Owensboro | Kentucky | 42301 | — |
| John Hopkins Asthma and Allergy Center | Baltimore | Maryland | 21224 | — |
| Brigham and Women's Hospital | Boston | Massachusetts | 02115 | — |
| University of Michigan Medicine | Ann Arbor | Michigan | 48109 | — |
| Clinical Research Institute, Inc. | Minneapolis | Minnesota | 55402 | — |
| Washington University School of Medicine | St Louis | Missouri | 63108 | — |
| Atlantic Research Center, LLC | Ocean City | New Jersey | 07712 | — |
| American Health Research | Charlotte | North Carolina | 28207 | — |
| Clinical Research of Charlotte | Charlotte | North Carolina | 28277 | — |
| Wake Forest Baptist Health | Winston-Salem | North Carolina | 27104 | — |
| Bernstein Clinical Research Center, LLC | Cincinnati | Ohio | 45231 | — |
| Cleveland Clinic | Cleveland | Ohio | 44195 | — |
| Oklahoma Institute of Allergy & Asthma Clinical Research, LLC | Oklahoma City | Oklahoma | 73131 | — |
| Crisor, LLC | Medford | Oregon | 97504 | — |
| Allergy and Clinical Immunology Associates | Pittsburgh | Pennsylvania | 15241 | — |
| Berks Schuylkill Respiratory Specialists, Ltd. | Wyomissing | Pennsylvania | 19610 | — |
| AAPRI Clinical Research Institute | Warwick | Rhode Island | 02886 | — |
| Clinical Research of Rock Hill | Rock Hill | South Carolina | 29732 | — |
| Corsicana Medical Research, LLC | Corsicana | Texas | 75110 | — |
| Western Sky Medical Research | El Paso | Texas | 79903 | — |
| Baylor College of Medicine | Houston | Texas | 77030 | — |
| Allergy and Asthma Research Center, PA | San Antonio | Texas | 78229 | — |
| Pulmonary Research of Abingdon, LLC | Abingdon | Virginia | 24210 | — |
| MultiCare Institute for Research & Innovation | Tacoma | Washington | 98405 | — |
| University of Wisconsin School of Medicine and Public Health Asthma, Allergy, and Pulmonary Clinical Research | Madison | Wisconsin | 53792-9988 | — |
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 70 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03683576, 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 Sep 15, 2021 · Synced Sep 24, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03683576 live on ClinicalTrials.gov.