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Completed Phase 2 Interventional Results available

Comparing the Efficacy, Safety, and Tolerability of Combination Antivirals (Amantadine, Ribavirin, Oseltamivir) Versus Oseltamivir for the Treatment of Influenza in Adults at Risk for Complications

ClinicalTrials.gov ID: NCT01227967

Public ClinicalTrials.gov record NCT01227967. 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 8, 2026, 8:10 AM EDT

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 Phase 2 Study Comparing the Efficacy, Safety, and Tolerability of Combination Antivirals (Amantadine, Ribavirin, Oseltamivir) Versus Oseltamivir for the Treatment of Influenza in Adults at Risk for Complications

Study identification

NCT ID
NCT01227967
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Enrollment
881 participants

Conditions and interventions

Conditions

Interventions

  • Amantadine, Ribavirin, Oseltamivir Drug
  • Oseltamivir 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
Aug 31, 2010
Primary completion
May 1, 2016
Completion
Mar 29, 2017
Last update posted
Feb 3, 2019

2010 – 2017

United States locations

U.S. sites
69
U.S. states
23
U.S. cities
61
Facility City State ZIP Site status
Simon Williamson Clinic Birmingham Alabama 35211
East Valley Family Physicians Chandler Arizona 85224
Thomas Lenzmeier Family Practice Glendale Arizona 85308
Central Phoenix Medical Center Phoenix Arizona 85020
WCCT Global LLC Costa Mesa California 92626
Advanced Rx Clinical Research Garden Grove California 92843
Torrance Clinical Research Institute, Inc. Lomita California 90717
University of Southern California Los Angeles California 90033
University of California at San Diego San Diego California 92103
Westlake Medical Research (CA) Thousand Oaks California 91360
Los Angeles BioMedical Research Institute Torrance California 90502
Empire Clinical Research Upland California 91786
University of Colorado Aurora Colorado 80045
Centennial - IMMUNOe International Research Centennial Colorado 80112
University of Florida Gainesville Florida 32610
Best Quality Research Inc. Hialeah Florida 33016
San Marcus Research Clinic, Inc. Miami Florida 33015
Medical Consulting Center Miami Florida 33125
Suncoast Research Group, LLC Miami Florida 33135
University of Miami Miami Florida 33136
DMI Research, Inc. Pinellas Park Florida 33782
Northwestern University Chicago Illinois 60611
Sneeze, Wheeze & Itch Associates, LLC Normal Illinois 61761
Ridge Family Practice Council Bluffs Iowa 51503
University of Iowa Iowa City Iowa 52246
Research Integrity, LLC Owensboro Kentucky 42303
Horizon Research Group, of Opelousas, LLC Eunice Louisiana 70535
Centex Studies Inc. - Dr. Seep Lake Charles Louisiana 70601
NIH Clinical Center Bethesda Maryland 20892
Boston Medical Center Boston Massachusetts 02111
Massachusetts General Hospital Boston Massachusetts 02114
Brigham and Women's Hospital Boston Massachusetts 02115
UMass Medical School Worcester Massachusetts 01655
Henry Ford Health Systems Detroit Michigan 48202
Bronson Methodist Hospital Kalamazoo Michigan 49007
West Florissant Internists Bridgeton Missouri 63044
Clinical Research Advantage/ Skyline Medical Center Elkhorn Nebraska 68022
Prairie Fields Family Medicine Fremont Nebraska 68025
Southwest Family Physicians Omaha Nebraska 68124
New Jersey Medical School Newark New Jersey 07103
Icahn School of Medicine at Mount Sinai New York New York 10029
University of Rochester Medical Center Rochester New York 14642
James J. Peters, VA Medical Center The Bronx New York 10468
University of North Carolina-Chapel Hill Chapel Hill North Carolina 27514
Duke University Durham North Carolina 27710
Clinical Research Solutions - Dr. Panuto Middleburg Heights Ohio 44130
University of Pennsylvania Philadelphia Pennsylvania 19104
University of Pittsburgh Pittsburgh Pennsylvania 15213
Montgomery Medical Smithfield Pennsylvania 15478
Health Concepts Rapid City South Dakota 57702
Clinical Research Solutions - Dr. Bart Columbia Tennessee 38401
Clinical Research Solutions - Dr. Slandzicki Franklin Tennessee 37064
Clinical Research Solutions - Dr. Hoppers Jackson Tennessee 38305
Holston Medical Group Kingsport Tennessee 37660
Clinical Research Solutions - Dr. Rowe Nashville Tennessee 37211
Clinical Research Solutions - Dr. Dar Smyrna Tennessee 37167
University of Texas Tech Amarillo Amarillo Texas 79106
Family Medicine Associates of Texas Carrollton Texas 75010
3rd Coast Research Associates Corpus Christi Texas 78413
University of Texas at Houston Houston Texas 77030
Centex Studies Inc. - Dr. Pouzar Houston Texas 77062
Pioneer Research Solutions, Inc. Houston Texas 77098
Texas Tech HSC Lubbock Texas 79430
Centex Studies Inc. - Dr. Garcia Pharr Texas 78577
Village Health Partners Plano Texas 75024
Endeavor Clinical Trials San Antonio Texas 78229
Bandera Family Healthcare Research San Antonio Texas 78249
University of Virginia Charlottesville Virginia 22908
Virginia Commonwealth University Richmond Virginia 23298

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 22 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01227967, 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 3, 2019 · Synced May 8, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT01227967 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →