ClinicalTrials.gov record
GRAVITAS: Gauging Responsiveness With A VerifyNow Assay-Impact On Thrombosis And Safety
ClinicalTrials.gov ID: NCT00645918
Public ClinicalTrials.gov record NCT00645918. 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.
Study identification
- NCT ID
- NCT00645918
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Lead sponsor
- Accumetrics, Inc.
- Industry
- Enrollment
- 2,800 participants
Conditions and interventions
Conditions
Interventions
- clopidogrel Drug
- placebo Drug
Drug
Eligibility (public fields only)
- Age range
- 18 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
- May 31, 2008
- Primary completion
- Sep 30, 2010
- Completion
- Sep 30, 2010
- Last update posted
- Jun 15, 2011
2008 – 2010
United States locations
- U.S. sites
- 72
- U.S. states
- 27
- U.S. cities
- 62
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of Alabama at Birmingham | Birmingham | Alabama | 35233 | — |
| Scottsdale Health Care - Osborn Campus | Scottsdale | Arizona | 85258 | — |
| Scottsdale Health Care - Shea Campus | Scottsdale | Arizona | 85258 | — |
| Scripps Green Hospital | La Jolla | California | 92037 | — |
| El Camino Hospital | Mountain View | California | 94040 | — |
| UC Davis Medical Center | Sacramento | California | 95817 | — |
| Sacramento Heart and Vascular Research Center | Sacramento | California | 95825 | — |
| UCSD Medical Center | San Diego | California | 92103 | — |
| Alvarado Hospital | San Diego | California | 92120 | — |
| San Francisco General Hospital | San Francisco | California | 94110 | — |
| UCSF Moffitt-Long Hospital | San Francisco | California | 94143 | — |
| Santa Barbara Cottage Hospital | Santa Barbara | California | 93105 | — |
| Torrance Memorial Medical Center | Torrance | California | 90503 | — |
| Bridgeport Hospital | Bridgeport | Connecticut | 06610 | — |
| Danbury Hospital | Danbury | Connecticut | 06810 | — |
| Christiana Care Hospital | Newark | Delaware | 19718 | — |
| Washington Hospital Center | Washington D.C. | District of Columbia | 20010 | — |
| Clearwater Cardiovascular and Interventional Consultants | Clearwater | Florida | 33756 | — |
| University of Florida Health Science Center | Jacksonville | Florida | 32209 | — |
| Cardiology Research Associates | Ormond Beach | Florida | 32174 | — |
| Tallahassee Memorial Hospital | Tallahassee | Florida | 32308 | — |
| St. Joseph's Research Institute | Atlanta | Georgia | 30342 | — |
| Redmond Regional Medical Center | Rome | Georgia | 30165 | — |
| Jesse Brown VA Medical Center | Chicago | Illinois | 60612 | — |
| University of Illinois Medical Center | Chicago | Illinois | 60612 | — |
| Trinity Medical Center | Moline | Illinois | 61265 | — |
| Prairie Education & Research Cooperative | Springfield | Illinois | 62701 | — |
| St. Vincent Heart Center of Indiana/The Care Group LLC | Indianapolis | Indiana | 46290 | — |
| Ochsner Clinic Foundation | New Orleans | Louisiana | 70232 | — |
| Union Memorial Hospital | Baltimore | Maryland | 21218 | — |
| Washington Adventist Hospital | Takoma Park | Maryland | 20912 | — |
| Boston University Medical Center | Boston | Massachusetts | 02118 | — |
| The Lahey Clinic | Burlington | Massachusetts | 01803 | — |
| Baystate Medical Center | Springfield | Massachusetts | 01199 | — |
| Cardiac and Vascular Research Center of Northern Michigan | Petoskey | Michigan | 49770 | — |
| William Beaumont Hospital | Royal Oak | Michigan | 48073 | — |
| St. Joseph's Mercy Hospital | Ypsilanti | Michigan | 48197 | — |
| St. Mary's Duluth Clinic Health System | Duluth | Minnesota | 55805 | — |
| St. Luke's / Mid America Heart Institute | Kansas City | Missouri | 64111 | — |
| Dartmouth-Hitchcock Medical Center | Lebanon | New Hampshire | 03756 | — |
| Lenox Hill Hospital | New York | New York | 10021 | — |
| NY Presbyterian / Weill Cornell Medical Center | New York | New York | 10021 | — |
| Hudson Valley Heart Center | Poughkeepsie | New York | 12601 | — |
| Stony Brook University Medical Center | Stony Brook | New York | 11794 | — |
| Durham VA Medical Center | Durham | North Carolina | 27705 | — |
| Carolina Cardiology Associates | High Point | North Carolina | 27262 | — |
| Wake Heart Research | Raleigh | North Carolina | 27610 | — |
| Wake Forest University | Winston-Salem | North Carolina | 27157 | — |
| The Lindner Clinical Trial Center | Cincinnati | Ohio | 45219 | — |
| University Hospitals Case Medical Center | Cleveland | Ohio | 44106 | — |
| North Ohio Research, Ltd. | Elyria | Ohio | 44035 | — |
| Cleveland Cardiovascular Research Foundation | Fairview Park | Ohio | 44126 | — |
| University of Oklahoma Health Science Center | Oklahoma City | Oklahoma | 73104 | — |
| Oklahoma Cardiovascular Associates | Oklahoma City | Oklahoma | 73120 | — |
| Geisinger Clinic - Cardiology | Danville | Pennsylvania | 17822 | — |
| St. Vincent Health Center | Erie | Pennsylvania | 16502 | — |
| Hospital of the University of Pennsylvania | Philadelphia | Pennsylvania | 19104 | — |
| Geisinger Wyoming Valley Medical Center | Wilkes-Barre | Pennsylvania | 18711 | — |
| Rhode Island Hospital | Providence | Rhode Island | 02903 | — |
| The Miriam Hospital | Providence | Rhode Island | 02906 | — |
| AnMed Health | Anderson | South Carolina | 29621 | — |
| Medical University of South Carolina | Charleston | South Carolina | 29425 | — |
| Black Hills Clinical Research Center | Rapid City | South Dakota | 57701 | — |
| Centennial Medical Center | Nashville | Tennessee | 37203 | — |
| Vanderbilt University Medical Center | Nashville | Tennessee | 37232 | — |
| South Austin Hospital | Austin | Texas | 78704 | — |
| Austin Heart P.A. | Austin | Texas | 78756 | — |
| Baylor Heart and Vascular Hospital | Dallas | Texas | 75226 | — |
| Plaza Medical Center of Fort Worth | Fort Worth | Texas | 76104 | — |
| The Methodist Hospital | Houston | Texas | 77030 | — |
| University Hospital San Antonio (UTHSCSA) | San Antonio | Texas | 78229 | — |
| Tomball Regional Hospital | Tomball | Texas | 77375 | — |
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 NCT00645918, 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 15, 2011 · Synced Jul 21, 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 NCT00645918 live on ClinicalTrials.gov.