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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Infectious Pneumonia Clear all
Completed Phase 4 Interventional Accepts healthy volunteers Results available

The Efficacy of the 2023-2024 Updated COVID-19 Vaccines Against COVID-19 Infection

NCT06065176
View directory record Official record
Conditions
COVID-19, Vaccine-Preventable Diseases, SARS CoV 2 Infection, Upper Respiratory Tract Infection, Upper Respiratory Disease
Interventions
Novavax COVID-19 vaccine (2023-2024 formula XBB containing), Pfizer COVID-19 mRNA vaccine (2023-2024 formula XBB containing)
Biological
Lead sponsor
Sarang K. Yoon, DO, MOH
Other
Eligibility
18 Years and older
Enrollment
1,188 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Sep 24, 2026, 2:10 PM EDT
Completed Not applicable Interventional

C-reactive Protein (CRP)-Guided Management Algorithm for Adults With Acute Cough

NCT00221351
View directory record Official record
Conditions
Cough
Interventions
CRP point of care testing
Procedure
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
139 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
2
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated May 22, 2011 · Synced Sep 24, 2026, 2:10 PM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

Pancoronavirus Vaccine Study in Healthy Adults

NCT06950177
View directory record Official record
Conditions
COVID-19 Respiratory Infection, SARS CoV 2 Infection, COVID-19 Vaccine
Interventions
CoV-RBD-scNP-001 and 3M-052-AF
Biological
Lead sponsor
Duke University
Other
Eligibility
18 Years to 55 Years
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Sep 24, 2026, 2:10 PM EDT
Active, not recruiting No phase listed Observational

Well-Being and Health-Related Quality of Life in Cancer Patients and Survivors During the COVID-19 Pandemic

NCT04500600
View directory record Official record
Conditions
COVID-19 Infection, Hematopoietic and Lymphoid Cell Neoplasm, Malignant Solid Neoplasm
Interventions
Quality-of-Life Assessment, Questionnaire Administration
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
13,378 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Sep 24, 2026, 2:10 PM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

NAC for Attenuation of COVID-19 Symptomatology

NCT05074121
View directory record Official record
Conditions
Covid19, COVID-19 Pneumonia, COVID-19 Respiratory Infection, COVID-19 Lower Respiratory Infection, SARS-CoV2 Infection, SARS-CoV-2 Acute Respiratory Disease, SARS-Associated Coronavirus as Cause of Disease Classified Elsewhere, Oxidative Stress
Interventions
N-acetylcysteine, Placebo
Drug · Other
Lead sponsor
Cambridge Health Alliance
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Everett, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 6, 2023 · Synced Sep 24, 2026, 2:10 PM EDT
Completed Not applicable Interventional Results available

Impact of Using Mini-Bronchoalveolar Lavage as a Diagnostic Test for Ventilator-Associated Pneumonia

NCT00319644
View directory record Official record
Conditions
Ventilator-Associated Pneumonia
Interventions
Bronchoalveolar lavage
Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 15, 2012 · Synced Sep 24, 2026, 2:10 PM EDT
Withdrawn Phase 2 Interventional

A Study of Hydroxycholoroquine Compared to Placebo as Treatment for People With COVID-19

NCT04379492
View directory record Official record
Conditions
COVID-19, COVID19, Sars-CoV2, SARS-Cov-2
Interventions
Hydroxychloroquine, Placebo
Drug · Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 15, 2025 · Synced Sep 24, 2026, 2:10 PM EDT
Completed No phase listed Observational

Assessment of Exam Findings in Coronavirus Disease 2019 (COVID-19) With Point-of-Care Ultrasonography (POCUS)

NCT04339998
View directory record Official record
Conditions
Coronavirus Infection, COVID, Covid-19, SARS-CoV-2
Interventions
Point-of-Care Ultrasonography (POCUS)
Diagnostic Test
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
129 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
2
States / cities
Minneapolis, Minnesota • Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 3, 2023 · Synced Sep 24, 2026, 2:10 PM EDT
Active, not recruiting Phase 2 Interventional

The Long COVID Treatment Trial

NCT07128082
View directory record Official record
Conditions
Long COVID
Interventions
Tirzepatide, Placebo
Drug
Lead sponsor
Scripps Translational Science Institute
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Dec 22, 2025 · Synced Sep 24, 2026, 2:10 PM EDT
Terminated Not applicable Interventional

CArdiac REhabilitation for Building Exertional heArt Rate for Chronotropic Incompetence in Long COVID-19

NCT05530317
View directory record Official record
Conditions
Long COVID, COVID-19
Interventions
Cardiac Rehabilitation
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Sep 24, 2026, 2:10 PM EDT
Completed Not applicable Interventional

VNS for Long-COVID-19

NCT05630040
View directory record Official record
Conditions
Post-COVID-19 Syndrome, Postural Tachycardia Syndrome, Dysautonomia
Interventions
Non-invasive vagus nerve stimulation, Sham Intervention
Device
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 7, 2024 · Synced Sep 24, 2026, 2:10 PM EDT
Completed Phase 2 Interventional Results available

Study to Evaluate Safety, Tolerability & Immunogenicity of BNT162b2 in Immunocompromised Participants ≥2 Years

NCT04895982
View directory record Official record
Conditions
SARS-CoV-2 Infection, COVID19
Interventions
BNT162b2
Biological
Lead sponsor
BioNTech SE
Industry
Eligibility
2 Years and older
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
15
States / cities
Jefferson, Louisiana • Kenner, Louisiana • New Orleans, Louisiana + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 8, 2024 · Synced Sep 24, 2026, 2:10 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Intervention to Prevent Household and Community Spread of COVID-19 Among Latinos

NCT05697068
View directory record Official record
Conditions
SARS-CoV-2 Infection
Interventions
COVID Prevention Program (CPP)
Behavioral
Lead sponsor
San Diego State University
Other
Eligibility
18 Years and older
Enrollment
256 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jan 27, 2025 · Synced Sep 24, 2026, 2:10 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

A Study Assessing the Safety, Tolerability, Immunogenicity of COVID-19 Vaccine Candidate PRIME-2-CoV_Beta, Orf Virus Expressing SARS-CoV_2 Spike and Nucleocapsid Proteins

NCT05367843
View directory record Official record
Conditions
SARS-CoV-2 Infection
Interventions
PRIME-2-CoV_Beta
Drug
Lead sponsor
Speransa Therapeutics
Industry
Eligibility
18 Years to 85 Years
Enrollment
103 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
5
States / cities
Florida City, Florida • Chicago, Illinois • Kansas City, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 8, 2024 · Synced Sep 24, 2026, 2:10 PM EDT
Active, not recruiting No phase listed Observational

Well-being in Cancer Patients With Neuropathy During COVID-19 Who Participated in Prior Clinical Trials

NCT04650178
View directory record Official record
Conditions
COVID-19 Infection, Hematopoietic and Lymphoid Cell Neoplasm, Malignant Solid Neoplasm, Neuropathy
Interventions
Quality-of-Life Assessment, Questionnaire Administration
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Not listed
Enrollment
274 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Sep 24, 2026, 2:10 PM EDT
Completed Phase 2 Interventional

A Decentralized, Randomized Phase 2 Efficacy and Safety Study of Nirmatrelvir/Ritonavir in Adults with Long COVID.

NCT05668091
View directory record Official record
Conditions
Long COVID
Interventions
Nirmatrelvir, Ritonavir, Placebo
Drug
Lead sponsor
Harlan M Krumholz
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 1, 2024 · Synced Sep 24, 2026, 2:10 PM EDT
Completed Phase 1 Interventional

Escalating Multiple-Dose Safety and Tolerance of WR 6026 Hydrochloride in HIV-Infected Subjects

NCT00000740
View directory record Official record
Conditions
Pneumonia, Pneumocystis Carinii, HIV Infections
Interventions
Sitamaquine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1993
U.S. locations
2
States / cities
Indianapolis, Indiana • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 3, 2021 · Synced Sep 24, 2026, 2:10 PM EDT
Terminated Phase 3 Interventional

Comparison of Three Treatments for Pneumocystis Pneumonia in AIDS Patients

NCT00000730
View directory record Official record
Conditions
Pneumonia, Pneumocystis Carinii, HIV Infections
Interventions
Trimetrexate glucuronate, Methylprednisolone, Pentamidine isethionate, Sulfamethoxazole-Trimethoprim, Leucovorin calcium
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
12 Years and older
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1989
U.S. locations
1
States / cities
West Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Nov 2, 2021 · Synced Sep 24, 2026, 2:10 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

CU-COMMITS: COVID-19 Care in Black and Latino Communities and Households. Clinical and Molecular Outcomes of SARS-CoV-2

NCT05467930
View directory record Official record
Conditions
COVID-19, SARS CoV 2 Infection
Interventions
Survey, Medical History Review, Sample Collection
Other
Lead sponsor
Columbia University
Other
Eligibility
18 Years and older
Enrollment
1,520 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Sep 24, 2026, 2:10 PM EDT
Not listed Phase 1 Interventional

Comparison of the Efficacy of Rapid Tests to Identify COVID-19 Infection (CATCh COVID-19)

NCT04372004
View directory record Official record
Conditions
COVID-19
Interventions
diagnostic tests for COVID-19 infection
Diagnostic Test
Lead sponsor
Texas Cardiac Arrhythmia Research Foundation
Other
Eligibility
18 Years to 85 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Aug 10, 2020 · Synced Sep 24, 2026, 2:10 PM EDT
Withdrawn Phase 3 Interventional

Tocilizumab for the Treatment of Cytokine Release Syndrome in Patients With COVID-19 (SARS-CoV-2 Infection)

NCT04361552
View directory record Official record
Conditions
Cerebrovascular Accident, Chronic Obstructive Pulmonary Disease, Chronic Renal Failure, Coronary Artery Disease, Diabetes Mellitus, Malignant Neoplasm, SARS Coronavirus 2 Infection
Interventions
Best Practice, Tocilizumab
Other · Biological
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 17, 2020 · Synced Sep 24, 2026, 2:10 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Rapid Development and Implementation of a Remote ECG-monitored Prospective Randomized Clinical Trial During a Pandemic: Hydroxychloroquine Prophylaxis in COVID-19 Household Contacts

NCT04652648
View directory record Official record
Conditions
Covid19, Hydroxychloroquine, Coronavirus Infection, Transmission, Prophylaxis
Interventions
Hydroxychloroquine
Drug
Lead sponsor
Bryn Mawr Hospital
Other
Eligibility
18 Years and older
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
3
States / cities
Bryn Mawr, Pennsylvania • Paoli, Pennsylvania • Wynnewood, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 2, 2020 · Synced Sep 24, 2026, 2:10 PM EDT
Terminated Phase 2 Interventional Results available

Phase 2 Study of Inhaled SNG001 in Mechanically Ventilated Patients With Respiratory Viral Infection

NCT06999603
View directory record Official record
Conditions
Viral Pneumonia
Interventions
SNG001, Placebo
Drug
Lead sponsor
Synairgen Research Ltd.
Industry
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
5
States / cities
Atlanta, Georgia • Chicago, Illinois • Detroit, Michigan + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 13, 2026 · Synced Sep 24, 2026, 2:10 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety and Effects of an Investigational COVID-19 Vaccine as Booster in Healthy People

NCT05541861
View directory record Official record
Conditions
SARS-CoV-2 Infection, COVID-19
Interventions
BNT162b2 Bivalent (original/Omicron BA.4/BA.5) 30 mcg, BNT162b4 5 mcg, BNT162b4 10 mcg, BNT162b4 15 mcg, BNT162b4 30 mcg, BNT162b2 Monovalent (OMI XBB.1.5) 30 mcg
Biological
Lead sponsor
BioNTech SE
Industry
Eligibility
18 Years and older
Enrollment
383 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
17
States / cities
Tempe, Arizona • Newport Beach, California • San Diego, California + 13 more
Source: ClinicalTrials.gov public record
Updated Jan 12, 2026 · Synced Sep 24, 2026, 2:10 PM EDT