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Showing 1–24 of 3,379 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Respiratory Virus Infections Clear all
Recruiting Phase 1Phase 2 Interventional

A Beta-only IL-2 ImmunoTherapY Study

NCT05086692
View directory record Official record
Conditions
Advanced Solid Tumor, Unresectable Solid Tumor, Clear Cell Renal Cell Carcinoma, Triple Negative Breast Cancer, Non-Small Cell Lung Cancer Squamous, Non-Small Cell Lung Cancer Non-squamous, Colorectal Cancer (MSI-H), Gastric Cancer, Cervical Cancer, Basal Cell Carcinoma, Bladder Cancer, Merkel Cell Carcinoma, Squamous Cell Carcinoma of Head and Neck, Cutaneous Squamous Cell Carcinoma, Pleural Mesothelioma, Esophageal Cancer, Endometrial Carcinoma, Solid Tumor, Solid Tumor, Adult, MSI-H Solid Malignant Tumor, Cancer With A High Tumor Mutational Burden, Epithelial Ovarian Carcinoma, Primary Peritoneal Cancer, Gastroesophageal Junction (GEJ) Cancer, Acral Melanoma, Mucosal Melanoma, Cutaneous Melanoma, DMMR Solid Malignant Tumor, Fallopian Tube Cancer, Ovarian Cancer, MSI-H Cancer, DMMR Cancer, Pancreas Adenocarcinoma (MSI-H), Skin Cancer, Viral Cancer, Cervical Cancers, Endometrial Cancer
Interventions
MDNA11, Pembrolizumab (KEYTRUDA®)
Drug
Lead sponsor
Medicenna Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
7
States / cities
San Diego, California • San Francisco, California • Santa Monica, California + 4 more
Source: ClinicalTrials.gov public record
Updated Jul 8, 2025 · Synced Sep 23, 2026, 11:20 PM EDT
Completed Phase 3 Interventional

A Multi-Center Clinical Trial To Evaluate Azidothymidine (AZT) in the Treatment of Human Immunodeficiency Virus (HIV) Infection in Patients With AIDS Post First Episode PCP

NCT00000700
View directory record Official record
Conditions
HIV Infections
Interventions
Zidovudine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
12 Years and older
Enrollment
482 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1990
U.S. locations
28
States / cities
Los Angeles, California • San Diego, California • San Francisco, California + 14 more
Source: ClinicalTrials.gov public record
Updated Nov 3, 2021 · Synced Sep 23, 2026, 11:20 PM EDT
Terminated Phase 2 Interventional Results available

PBI-0451 (Pomotrelvir) Phase 2 Study in Nonhospitalized Symptomatic Adults With COVID-19

NCT05543707
View directory record Official record
Conditions
COVID-19
Interventions
PBI-0451 (Pomotrelvir), Placebo
Drug
Lead sponsor
Pardes Biosciences, Inc.
Industry
Eligibility
18 Years to 64 Years
Enrollment
242 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
54
States / cities
Mesa, Arizona • Bakersfield, California • Canoga Park, California + 41 more
Source: ClinicalTrials.gov public record
Updated Dec 10, 2024 · Synced Sep 23, 2026, 11:20 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Study on the Incidence of Influenza and Its Complications, in Subjects Aged 50 Years and Over Vaccinated With Fluarix™

NCT00377611
View directory record Official record
Conditions
Influenza
Interventions
Fluarix™
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
50 Years and older
Enrollment
3,054 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
9
States / cities
Mobile, Alabama • Delray Beach, Florida • Pembroke Pines, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 8, 2018 · Synced Sep 23, 2026, 11:20 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Testing a Personally Controlled Health Record to Ameliorate Influenza at MIT

NCT00531700
View directory record Official record
Conditions
Influenza
Interventions
Health messaging, Health messages
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years and older
Enrollment
800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 30, 2009 · Synced Sep 23, 2026, 11:20 PM EDT
Completed Phase 2 Interventional

A Study to Compare Different Drugs Used to Prevent Serious Bacterial Infections in HIV-Positive Children

NCT00000811
View directory record Official record
Conditions
Bacterial Infections, Pneumonia, Pneumocystis Carinii, HIV Infections
Interventions
Azithromycin, Atovaquone, Sulfamethoxazole-Trimethoprim
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
3 Months to 18 Months
Enrollment
690 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2001
U.S. locations
72
States / cities
Birmingham, Alabama • Mobile, Alabama • La Jolla, California + 46 more
Source: ClinicalTrials.gov public record
Updated Nov 3, 2021 · Synced Sep 23, 2026, 11:20 PM EDT
Withdrawn Phase 1 Interventional

CLBS119 for Repair of COVID-19 Induced Pulmonary Damage

NCT04522817
View directory record Official record
Conditions
Covid-19
Interventions
CLBS119
Biological
Lead sponsor
Lisata Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 8, 2024 · Synced Sep 23, 2026, 11:20 PM EDT
Completed Phase 2 Interventional

Valacyclovir Plus Celecoxib for Post-Acute Sequelae of SARS-CoV-2

NCT06316843
View directory record Official record
Conditions
Long COVID, PASC Post Acute Sequelae of COVID 19
Interventions
Valacyclovir celecoxib dose 1, Valacyclovir celecoxib dose 2, Placebo
Drug
Lead sponsor
Bateman Horne Center
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jan 21, 2025 · Synced Sep 23, 2026, 11:20 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Drug-drug Interaction Study of S-892216 Coadministered With Carbamazepime to Healthy Adult Participants

NCT06751017
View directory record Official record
Conditions
COVID-19
Interventions
S-892216, Carbamazepine
Drug
Lead sponsor
Shionogi
Industry
Eligibility
18 Years to 55 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Mar 10, 2025 · Synced Sep 23, 2026, 11:20 PM EDT
Completed Phase 3 Interventional Results available

Adaptive COVID-19 Treatment Trial 4 (ACTT-4)

NCT04640168
View directory record Official record
Conditions
COVID-19
Interventions
Baricitinib, Dexamethasone, Placebo, Remdesivir
Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
1,010 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
61
States / cities
Birmingham, Alabama • Fresno, California • La Jolla, California + 50 more
Source: ClinicalTrials.gov public record
Updated Jun 27, 2022 · Synced Sep 23, 2026, 11:20 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Phase 1 Study on Bioavailability, Food Effect, and Drug-Drug Interaction of ALG-097558 Tablets in Healthy Volunteers

NCT06945276
View directory record Official record
Conditions
COVID-19
Interventions
ALG-097558, Dabigatran, Itraconazole, Placebo
Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 65 Years
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated May 17, 2026 · Synced Sep 23, 2026, 11:20 PM EDT
Not listed Phase 3 Interventional Accepts healthy volunteers

Hydroxychloroquine as Prophylaxis for COVID-19 in Healthcare Workers (HCQPreP)

NCT04363450
View directory record Official record
Conditions
COVID-19, Corona Virus Infection, Wuhan Coronavirus, Prophylaxis, Healthcare Worker, Sars-CoV2, Hydroxychloroquine
Interventions
Hydroxychloroquine, Placebo
Drug
Lead sponsor
Louisiana State University Health Sciences Center in New Orleans
Other
Eligibility
18 Years and older
Enrollment
1,700 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
2
States / cities
Lafayette, Louisiana
Source: ClinicalTrials.gov public record
Updated Sep 1, 2020 · Synced Sep 23, 2026, 11:20 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of Different Formulations of an Intramuscular A/H5N1 Inactivated, Split Virion Influenza Adjuvanted Vaccine

NCT00664417
View directory record Official record
Conditions
Influenza, Orthomyxoviridae Infections
Interventions
Monovalent subvirion H5N1 influenza vaccine, Physiological saline
Biological
Lead sponsor
Sanofi
Industry
Eligibility
18 Years to 40 Years
Enrollment
375 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
6
States / cities
San Diego, California • South Miami, Florida • Springfield, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 16, 2012 · Synced Sep 23, 2026, 11:20 PM EDT
Enrolling by invitation Phase 2 Interventional

DMSO Dual-Route Therapy for Refractory Tinnitus in Long-COVID and Post-COVID-19 Vaccine Injury

NCT07567274
View directory record Official record
Conditions
Tinnitus
Interventions
DMSO-based otic solution with betahistine, dexamethasone, and lidocaine, DMSO-based transdermal cream with levocarnitine and N-acetylcysteine
Drug
Lead sponsor
Leading Edge Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Ithaca, New York
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Sep 23, 2026, 11:20 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety, Tolerability and Immunogenicity of a Plant-Made H1 VLP Influenza Vaccine in Adults

NCT01302990
View directory record Official record
Conditions
Flu
Interventions
Dose given at Day 0
Biological
Lead sponsor
Medicago
Industry
Eligibility
18 Years to 49 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 15, 2013 · Synced Sep 23, 2026, 11:20 PM EDT
Completed Not applicable Interventional

An Open-Label, Uncontrolled Clinical Trial of Oral 566C80 for the Treatment of Patients With Severe PCP Who Are Intolerant and/or Unresponsive to Therapy With Trimethoprim/Sulfamethoxazole and Parenteral Pentamidine

NCT00001990
View directory record Official record
Conditions
Pneumonia, Pneumocystis Carinii, HIV Infections
Interventions
Atovaquone
Drug
Lead sponsor
Glaxo Wellcome
Industry
Eligibility
1 Day and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 23, 2026, 11:20 PM EDT
Completed Not applicable Interventional

Adult Influenza Vaccination Text Message Reminders With Electronic Health Record Alerts

NCT02284594
View directory record Official record
Conditions
Influenza
Interventions
text message
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
4,026 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 18, 2015 · Synced Sep 23, 2026, 11:20 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Recovery of Respiratory System in COVID-19 Patients

NCT04954222
View directory record Official record
Conditions
Covid19
Interventions
Not listed
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
2
States / cities
Scottsdale, Arizona • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 19, 2024 · Synced Sep 23, 2026, 11:20 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety, Reactogenicity, and Immunogenicity Trial of STX-S SARS-CoV-2 Vaccine in Adults

NCT07095231
View directory record Official record
Conditions
COVID-19
Interventions
STX-S
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 64 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
3
States / cities
Rochester, New York • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 25, 2026 · Synced Sep 23, 2026, 11:20 PM EDT
Terminated Phase 1 Interventional

A Study to Learn About the Study Medicine (Nirmatrelvir Plus Ritonavir) in Pregnant Women With COVID-19

NCT05386472
View directory record Official record
Conditions
COVID-19
Interventions
nirmatrelvir, ritonavir
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
13
States / cities
Birmingham, Alabama • Cutler Bay, Florida • DeBary, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Aug 16, 2026 · Synced Sep 23, 2026, 11:20 PM EDT
Completed No phase listed Observational

Natural History of Systemic and Nasal Mucosal Immunity After Influenza Vaccination in a Pediatric Population

NCT04963166
View directory record Official record
Conditions
Influenza Immunity
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
2 Years to 17 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced Sep 23, 2026, 11:20 PM EDT
Completed Not applicable Interventional Results available

Using Explainable AI Risk Predictions to Nudge Influenza Vaccine Uptake

NCT05009251
View directory record Official record
Conditions
Influenza, Vaccination, Health Promotion, Health Behavior, Risk Reduction
Interventions
Reminder, Risk reduction, Medical records-based recommendation, Algorithm-based recommendation
Behavioral
Lead sponsor
National Bureau of Economic Research, Inc.
Other
Eligibility
18 Years and older
Enrollment
45,061 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 2, 2025 · Synced Sep 23, 2026, 11:20 PM EDT
Completed Not applicable Interventional

Influenza Vaccine Randomized Educational Trial: Adult

NCT02907645
View directory record Official record
Conditions
Vaccination, Influenza
Interventions
Local educational information, National educational information
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older · Male only
Enrollment
222 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 26, 2017 · Synced Sep 23, 2026, 11:20 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Mindfulness During COVID-19

NCT04319445
View directory record Official record
Conditions
Migraine Disorders, Stress, Anxiety
Interventions
Mindfulness session(s)
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
Not listed
Enrollment
144 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 1, 2022 · Synced Sep 23, 2026, 11:20 PM EDT