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Showing 1–21 of 21 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Antiviral Prophylaxis Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

A Safety and Immunogenicity Study of Intranasal Sendai Virus Vectored Respiratory Syncytial Virus (SeVRSV) Vaccine in Healthy Adults

NCT03473002
View directory record Official record
Conditions
Antiviral Prophylaxis, Respiratory Syncytial Virus Infection
Interventions
Placebo, SeVRSV Vaccine
Other · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 28, 2019 · Synced Jul 22, 2026, 2:12 AM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

A Trial to Evaluate the Effect of CD388 on the Immunogenicity of Fluzone® HD Vaccine

NCT07300085
View directory record Official record
Conditions
Healthy Participants
Interventions
Fluzone HD influenza vaccine, CD388 Injection, Placebo
Biological · Combination Product
Lead sponsor
Cidara Therapeutics Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
Industry
Eligibility
18 Years to 49 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
2
States / cities
Glendale, California • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Jul 22, 2026, 2:12 AM EDT
Recruiting Phase 4 Interventional

Strategic Help With Immunoglobulin to Enhance Protect Against Late Disease (CMV)

NCT06958796
View directory record Official record
Conditions
Cytomegalovirus, Organ Transplant, Kidney Transplant; Complications, Liver Transplant Complications, Simultaneous Liver-Kidney Transplantation; Complications
Interventions
Cytomegalovirus Immune Globulin Intravenous (Human) monthly for three months
Drug
Lead sponsor
Camille N. Kotton, MD
Other
Eligibility
18 Years to 75 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
2
States / cities
Boston, Massachusetts • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Dec 21, 2025 · Synced Jul 22, 2026, 2:12 AM EDT
Completed No phase listed Observational

A Study to Evaluate the Impact of Stopping Treatment for the Prevention of Pneumonia in HIV-Positive Patients Receiving Anti-HIV Drugs Who Have Increased CD4 Cell Counts

NCT00000908
View directory record Official record
Conditions
Pneumonia, Pneumocystis Carinii, HIV Infections
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
53
States / cities
Birmingham, Alabama • Harbor City, California • Los Angeles, California + 30 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 22, 2026, 2:12 AM EDT
Recruiting Phase 2 Interventional

CMV Immunity Monitoring in Lung Transplant Recipients

NCT05708755
View directory record Official record
Conditions
Lung Transplant; Complications
Interventions
Cytomegalovirus T Cell Immunity Panel (CMV-TCIP), Donor-Derived Cell-Free DNA (dd-cfDNA) Assay, Valganciclovir
Device · Diagnostic Test · Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 99 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Jul 22, 2026, 2:12 AM EDT
Completed Phase 1 Interventional

Poly-ICLC to Prevent Respiratory Viral Infections A Safety Study

NCT00646152
View directory record Official record
Conditions
Influenza, Severe Acute Respiratory Distress Syndrome, Smallpox, Ebola, Unknown Respiratory Viruses
Interventions
Poly-ICLC
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 70 Years
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 4, 2018 · Synced Jul 22, 2026, 2:12 AM EDT
Recruiting Phase 4 Interventional

Letermovir for Secondary Prophylaxis in Solid Organ Transplant Recipients

NCT05626530
View directory record Official record
Conditions
Cytomegalovirus Infections, Infection in Solid Organ Transplant Recipients, Neutropenia, Antiviral Toxicity
Interventions
Letermovir
Drug
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 9, 2025 · Synced Jul 22, 2026, 2:12 AM EDT
Completed Phase 2 Interventional

Alternative Oseltamivir Dosing Strategies

NCT00334529
View directory record Official record
Conditions
Influenza
Interventions
Oseltamivir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
4
States / cities
Los Angeles, California • Palo Alto, California • Bethesda, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jul 22, 2026, 2:12 AM EDT
Withdrawn Phase 2Phase 3 Interventional

Antiviral Prophylaxis in a Burn Population

NCT02349828
View directory record Official record
Conditions
Herpes Simplex
Interventions
Acyclovir
Drug
Lead sponsor
Southern Illinois University
Other
Eligibility
24 Months and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Springfield, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 20, 2016 · Synced Jul 22, 2026, 2:12 AM EDT
Active, not recruiting Phase 3 Interventional

A Study to Evaluate the Safety and Efficacy of CD388 for Prevention of Influenza

NCT07159763
View directory record Official record
Conditions
Influenza
Interventions
CD388 Injection, Placebo
Combination Product
Lead sponsor
Cidara Therapeutics Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
Industry
Eligibility
12 Years and older
Enrollment
10,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
120
States / cities
Anniston, Alabama • Cullman, Alabama • Glendale, Arizona + 106 more
Source: ClinicalTrials.gov public record
Updated Jun 21, 2026 · Synced Jul 22, 2026, 2:12 AM EDT
Completed Phase 4 Interventional Results available

Prevention of De Novo HCV With Antiviral HCV Therapy Post-Liver and Post-Kidney Transplant

NCT03619837
View directory record Official record
Conditions
Hepatitis C, Transplantation Disease Transmission
Interventions
Sofosbuvir/Velpatasvir, Sofosbuvir/Velpatasvir/Voxilaprevir
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
Not listed
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
6
States / cities
San Francisco, California • Aurora, Colorado • Atlanta, Georgia + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 2, 2021 · Synced Jul 22, 2026, 2:12 AM EDT
Recruiting Not applicable Interventional

Prophylaxis With Direct-acting Antivirals for Kidney Transplantation From HCV-Infected Donors to Uninfected Recipients

NCT05653232
View directory record Official record
Conditions
HCV
Interventions
Prophylaxis (P2W), Transmit and Treat (T&T)
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
9
States / cities
La Jolla, California • Loma Linda, California • Baltimore, Maryland + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Jul 22, 2026, 2:12 AM EDT
Withdrawn Phase 4 Interventional

Topical Corticosteroid Use in Addition to Oral Antivirals for Prevention of Recurrence of Herpes Simplex Virus (HSV) Keratitis

NCT03626376
View directory record Official record
Conditions
Herpes Simplex Virus Keratitis
Interventions
oral acyclovir 400 mg BID OR valacyclovir 500 mg qdaily, oral acyclovir 400 mg BID OR valacyclovir 500 mg qdaily + topical corticosteroid eye drops
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 100 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 13, 2022 · Synced Jul 22, 2026, 2:12 AM EDT
Completed Phase 4 Interventional Results available

CMV Antiviral Prevention Strategies in D+R-Liver Transplants ("CAPSIL")

NCT01552369
View directory record Official record
Conditions
Cytomegalovirus Infection
Interventions
Valganciclovir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
205 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
6
States / cities
Los Angeles, California • Atlanta, Georgia • Rochester, Minnesota + 3 more
Source: ClinicalTrials.gov public record
Updated Aug 25, 2021 · Synced Jul 22, 2026, 2:12 AM EDT
Recruiting No phase listed Observational

HIV Outpatient Monitoring Evaluation Through Self-collection of Dried Blood Spots

NCT04979728
View directory record Official record
Conditions
HIV Treatment, HIV Prevention
Interventions
At Home Self-Collections
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 2, 2026 · Synced Jul 22, 2026, 2:12 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

An Open Label Study in Adults to Test the Efficacy of Mitoquinone/Mitoquinol Mesylate to Prevent Severe Viral Illness

NCT05381454
View directory record Official record
Conditions
Respiratory Viral Infection, Antiviral Treatment, COVID-19
Interventions
Mitoquinone/mitoquinol mesylate
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced Jul 22, 2026, 2:12 AM EDT
Completed No phase listed Observational

Pharmacokinetics of Understudied Drugs Administered to Children Per Standard of Care

NCT01431326
View directory record Official record
Conditions
Adenovirus, Anesthesia, Anxiety, Anxiolysis, Autism, Autistic Disorder, Bacterial Meningitis, Bacterial Septicemia, Benzodiazepine, Bipolar Disorder, Bone and Joint Infections, Central Nervous System Infections, Convulsions, Cytomegalovirus Retinitis, Early-onset Schizophrenia Spectrum Disorders, Epilepsy, General Anesthesia, Gynecologic Infections, Herpes Simplex Virus, Infantile Hemangioma, Infection, Inflammation, Inflammatory Conditions, Intra-abdominal Infections, Lower Respiratory Tract Infections, Migraines, Pain, Pneumonia, Schizophrenia, Sedation, Seizures, Skeletal Muscle Spasms, Skin and Skin-structure Infections, Treatment-resistant Schizophrenia, Urinary Tract Infections, Withdrawal, Sepsis, Gram-negative Infection, Bradycardia, Cardiac Arrest, Cardiac Arrhythmia, Staphylococcal Infections, Nosocomial Pneumonia, Neuromuscular Blockade, Methicillin Resistant Staphylococcus Aureus, Endocarditis, Neutropenia, Headache, Fibrinolytic Bleeding, Pulmonary Arterial Hypertension, CMV Retinitis, Hypertension, Chronic Kidney Diseases, Hyperaldosteronism, Hypokalemia, Heart Failure, Hemophilia, Heavy Menstrual Bleeding, Insomnia
Interventions
The POPS study is collecting PK data on children prescribed the following drugs of interest per standard of care:
Drug
Lead sponsor
Daniel Benjamin
Other
Eligibility
Up to 21 Years
Enrollment
3,520 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2019
U.S. locations
43
States / cities
Anchorage, Alaska • Little Rock, Arkansas • La Jolla, California + 37 more
Source: ClinicalTrials.gov public record
Updated Sep 5, 2023 · Synced Jul 22, 2026, 2:12 AM EDT
Completed Phase 3 Interventional

A Study of Valacyclovir Hydrochloride in the Prevention of Life-Threatening Cytomegalovirus Disease in HIV-Infected Patients

NCT00001038
View directory record Official record
Conditions
Cytomegalovirus Infections, HIV Infections
Interventions
Valacyclovir hydrochloride, Acyclovir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
1,200 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
21
States / cities
Birmingham, Alabama • Los Angeles, California • Oakland, California + 16 more
Source: ClinicalTrials.gov public record
Updated Feb 28, 2011 · Synced Jul 22, 2026, 2:12 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Study of CD388 for the Prevention of Influenza in Subjects Not at Risk for Influenza Complications

NCT06609460
View directory record Official record
Conditions
Influenza
Interventions
CD388 Injection, Placebo
Combination Product
Lead sponsor
Cidara Therapeutics Inc., a subsidiary of Merck & Co., Inc. (Rahway, New Jersey USA)
Industry
Eligibility
18 Years to 63 Years
Enrollment
5,071 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
56
States / cities
Anniston, Alabama • Cullman, Alabama • Tempe, Arizona + 51 more
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Jul 22, 2026, 2:12 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Evaluation of Alternative Oseltamivir (Tamiflu) Dosing Strategies.

NCT00304434
View directory record Official record
Conditions
Influenza
Interventions
Oseltamivir, Probenecid
Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Sep 22, 2009 · Synced Jul 22, 2026, 2:12 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Adefovir Plus Vaccination in Transplant Patients Without Hepatitis B That Receive a Core Antibody Positive Liver

NCT01146808
View directory record Official record
Conditions
Hepatitis B, Liver Transplantation
Interventions
Adefovir dipivoxil and hepatitis B vaccination
Drug
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 9, 2021 · Synced Jul 22, 2026, 2:12 AM EDT