ClinicalTrials.gov record
COVID-19 Thrombosis Prevention Trials: Post-hospital Thromboprophylaxis
ClinicalTrials.gov ID: NCT04650087
Public ClinicalTrials.gov record NCT04650087. 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 May 11, 2026, 4:39 PM EDT
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
COVID-19 Post-hospital Thrombosis Prevention Trial: An Adaptive, Multicenter, Prospective, Randomized Platform Trial Evaluating the Efficacy and Safety of Antithrombotic Strategies in Patients With COVID-19 Following Hospital Discharge
Study identification
- NCT ID
- NCT04650087
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- Thomas L. Ortel
- Other
- Enrollment
- 1,291 participants
Conditions and interventions
Conditions
Interventions
- Apixaban 2.5 MG 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
- Feb 14, 2021
- Primary completion
- Jul 23, 2022
- Completion
- Sep 22, 2022
- Last update posted
- Feb 24, 2025
2021 – 2022
United States locations
- U.S. sites
- 121
- U.S. states
- 38
- U.S. cities
- 104
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Valleywise Health Medical Center | Phoenix | Arizona | 85008 | — |
| Dignity Health-St Josephs | Phoenix | Arizona | 85013 | — |
| Central Arkansas Veterans Health Care System | Little Rock | Arkansas | 72205 | — |
| University of Arkansas for Medical Sciences | Little Rock | Arkansas | 72205 | — |
| Stanford University School of Medicine | Palo Alto | California | 94304 | — |
| UCSF at Zuckerberg San Francisco General Hospital | San Francisco | California | 94110 | — |
| New Ananda Medical and Urgent Care, Inc. | South El Monte | California | 91733 | — |
| Mazur and Statner MD PC | Thousand Oaks | California | 91360 | — |
| Torrance Medical Center | Torrance | California | 90502 | — |
| Centura Health Porter Adventist Hospital | Denver | Colorado | 80210 | — |
| Saint Anthony Hospital | Lakewood | Colorado | 80228 | — |
| St. Anthony North Health Campus | Westminster | Colorado | 80023 | — |
| Baycare Hospital | Clearwater | Florida | 33756 | — |
| Florida Heart Center | Ft. Pierce | Florida | 34590 | — |
| University of Florida | Gainesville | Florida | 32610 | — |
| Mount Sinai Medical Center | Miami Beach | Florida | 33140 | — |
| Tallahassee Memorial HealthCare | Tallahassee | Florida | 32308 | — |
| James A. Haley Veteran's Hospital | Tampa | Florida | 33612 | — |
| BayCare Hospital- Winter Haven | Winter Haven | Florida | 33881 | — |
| Emory University | Atlanta | Georgia | 30308 | — |
| Medical College of Georgia/Augusta University | Augusta | Georgia | 30912 | — |
| Savannah Health Services, LLC DBA Memorial Health University Medical Center | Savannah | Georgia | 31404 | — |
| Queens Medical Center | Honolulu | Hawaii | 96813 | — |
| Hawaii Pacific Health | Honolulu | Hawaii | 96827 | — |
| Snake River Research, PLLC | Idaho Falls | Idaho | 83404 | — |
| University of Illinois at Chicago | Chicago | Illinois | 60607 | — |
| Cook County Health | Chicago | Illinois | 60612 | — |
| Rush University Medical Center | Chicago | Illinois | 60612 | — |
| The University of Chicago Medicine | Chicago | Illinois | 60637 | — |
| OSF Little Company of Mary | Evergreen Park | Illinois | 60805 | — |
| Loyola University Medical Center | Maywood | Illinois | 60153 | — |
| Indiana University Health Bloomington Hospital | Bloomington | Indiana | 47403 | — |
| Lutheran Medical Group | Fort Wayne | Indiana | 46804 | — |
| Indiana University Health Methodist Hospital | Indianapolis | Indiana | 46202 | — |
| Franciscan Health Michigan City | Michigan City | Indiana | 46360 | — |
| Reid Physician Associates | Richmond | Indiana | 47374 | — |
| Baptist Health Lexington | Lexington | Kentucky | 40503 | — |
| University Medical Center New Orleans | New Orleans | Louisiana | 70112 | — |
| Ochsner Clinic Foundation-Baton Rouge | New Orleans | Louisiana | 70121 | — |
| Ochsner Clinic Foundation | New Orleans | Louisiana | 70121 | — |
| Willis-Knighton Physician Network/Tri-State Medical Clinic | Shreveport | Louisiana | 71103 | — |
| Maine Medical Center/Maine Medical Partners Adult Hospital Medicine | Portland | Maine | 04102 | — |
| Pen Bay Medical Center | Rockport | Maine | 04856 | — |
| Anne Arundel Medical Center | Annapolis | Maryland | 21401 | — |
| Lifebridge (Sinai Hospital of Baltimore) | Baltimore | Maryland | 21215 | — |
| Adventist HealthCare Shady Grove Medical Center | Rockville | Maryland | 20850 | — |
| Boston University | Boston | Massachusetts | 02118 | — |
| Lahey Hospital and Medical Center | Burlington | Massachusetts | 01805 | — |
| Baystate Medical center | Springfield | Massachusetts | 01199 | — |
| Bay Regional Medical Center d/b/a/ McLaren Bay Region | Bay City | Michigan | 48708 | — |
| Henry Ford Hospital | Detroit | Michigan | 48202 | — |
| Western Michigan University | Kalamazoo | Michigan | 49008 | — |
| MidMichigan Medical Center | Midland | Michigan | 48670 | — |
| McLaren Macomb | Mount Clemens | Michigan | 48043 | — |
| Minneapolis VA Health Care System | Minneapolis | Minnesota | 55417 | — |
| University of Mississippi Medical Center | Jackson | Mississippi | 39216 | — |
| Truman Medical Center | Kansas City | Missouri | 64108 | — |
| Barnes-Jewish Hospital | St Louis | Missouri | 63110 | — |
| St Louis University | St Louis | Missouri | 63110 | — |
| Mercury Street Medical Group | Butte | Montana | 59701 | — |
| CHI St Elizabeth Hospital | Lincoln | Nebraska | 68510 | — |
| Renown Health | Reno | Nevada | 89502 | — |
| Dartmouth Hichcock Medical Center | Lebanon | New Hampshire | 03756 | — |
| AtlantiCare Regional Medical Center | Atlantic City | New Jersey | 08401 | — |
| Hope Tower at Jersey Shore University Medical Center | Neptune City | New Jersey | 07753 | — |
| Newark Beth Israel Medical Center | Newark | New Jersey | 07112 | — |
| Capital Health System, Inc. | Trenton | New Jersey | 08638 | — |
| Christus St. Vincent Regional Medical Center | Santa Fe | New Mexico | 87505 | — |
| NYU Langone Hospital-Brooklyn | Brooklyn | New York | 111220 | — |
| Coney Island Hospital | Brooklyn | New York | 11235 | — |
| Buffalo General Medical Center | Buffalo | New York | 14203 | — |
| Mercy Hospital Buffalo | Buffalo | New York | 14220 | — |
| Jamaica Hospital Medical Center | Jamaica | New York | 11418 | — |
| New York University Langone Health | New York | New York | 10016 | — |
| Stony Brook University Hospital | Stony Brook | New York | 11794 | — |
| Montefiore Medical Center | The Bronx | New York | 10467 | — |
| Westchester Medical Center | Valhalla | New York | 10595 | — |
| University of North Carolina at Chapel Hill | Chapel Hill | North Carolina | 27514 | — |
| Duke Medical Center | Durham | North Carolina | 27710 | — |
| East Carolina University/Vidant Health | Greenville | North Carolina | 27858 | — |
| Wake Med Hospital | Raleigh | North Carolina | 27610 | — |
| Wake Forest Baptist Medical Center | Winston-Salem | North Carolina | 27157 | — |
| Summa Health | Akron | Ohio | 44304 | — |
| University of Cincinnati | Cincinnati | Ohio | 45267 | — |
| Cleveland Clinic Foundation | Cleveland | Ohio | 44195 | — |
| Ohio State University | Columbus | Ohio | 43210 | — |
| Kettering Medical Center | Kettering | Ohio | 45429 | — |
| Ascension St. John Bartlesville | Tulsa | Oklahoma | 74104 | — |
| Ascension St. John Tulsa | Tulsa | Oklahoma | 74104 | — |
| Oregon Health and Science University | Portland | Oregon | 97239 | — |
| St. Luke's University Health Network | Easton | Pennsylvania | 18045 | — |
| Conemaugh Memorial Medical Center | Johnstown | Pennsylvania | 15905 | — |
| Temple University Hospital | Philadelphia | Pennsylvania | 19140 | — |
| University of Pittsburgh | Pittsburgh | Pennsylvania | 15213 | — |
| Tower Health Medical Group | West Reading | Pennsylvania | 19611 | — |
| Rhode Island Hospital | Providence | Rhode Island | 02903 | — |
| The Miriam Hospital | Providence | Rhode Island | 02906 | — |
| Monument Health Clinical Research | Rapid City | South Dakota | 57701 | — |
| Erlanger Health System | Chattanooga | Tennessee | 37403 | — |
| Vanderbilt University Medical Center | Nashville | Tennessee | 37232 | — |
| Christus St. Elizabeth Hospital | Beaumont | Texas | 77702 | — |
| Baylor Scott and White Medical Center- College Station | College Station | Texas | 77845 | — |
| University of Texas Southwestern Medical Center | Dallas | Texas | 75390 | — |
| Texas Health Harris Methodist | Fort Worth | Texas | 76104 | — |
| University of Texas- Houston, LBJ Hospital | Houston | Texas | 77030 | — |
| UT Houston MHH-SW | Houston | Texas | 77030 | — |
| UTHouston | Houston | Texas | 77030 | — |
| Texas Health Frisco | Plano | Texas | 75024 | — |
| Baylor Scott and White-Round Rock | Round Rock | Texas | 78665 | — |
| Baylor Scott and White-Temple | Temple | Texas | 76508 | — |
| The Woodlands Center For Respiratory & Sleep Research | The Woodlands | Texas | 77380 | — |
| CHRISTUS Trinity Clinic Pulmonary Medicine | Tyler | Texas | 75701 | — |
| The University of Texas Health Science Center at Tyler | Tyler | Texas | 75708 | — |
| UT Health East Texas (Tyler) | Tyler | Texas | 75708 | — |
| UT Rio Grande Valley | Weslaco | Texas | 78596 | — |
| MultiCare Institute for Research & Innovation | Puyallup | Washington | 98372 | — |
| UW Medicine Valley Medical Center | Renton | Washington | 98055 | — |
| Virginia Mason Medical Center | Seattle | Washington | 98101 | — |
| CAMC Clinical Trials Center | Charleston | West Virginia | 25304 | — |
| West Virginia University Hospital | Morgantown | West Virginia | 26506 | — |
| Blood Center of Wisconsin | Milwaukee | Wisconsin | 53226 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04650087, 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 Feb 24, 2025 · Synced May 11, 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 NCT04650087 live on ClinicalTrials.gov.