Respiratory Tract Clinical Trials

56 recruitingLast updated: May 13, 2026

There are 56 actively recruiting respiratory tract clinical trials across 36 countries. Studies span Not Applicable, Phase 4, Phase 2, Phase 3, Phase 1. Top locations include London, United Kingdom, Rochester, Minnesota, United States, Dallas, Texas, United States. Updated daily from ClinicalTrials.gov.


Respiratory Tract Trials at a Glance

56 actively recruiting trials for respiratory tract are listed on ClinicalTrialsFinder across 6 cities in 36 countries. The largest study group is Not Applicable with 16 trials, with the heaviest enrollment activity in London, Rochester, and Dallas. Lead sponsors running respiratory tract studies include European Clinical Research Alliance for Infectious Diseases (ECRAID), Fundación GECP, and Murdoch Childrens Research Institute.

Browse respiratory tract trials by phase

Treatments under study

About Respiratory Tract Clinical Trials

Looking for clinical trials for Respiratory Tract? There are currently 1 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Respiratory Tract trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Respiratory Tract clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 56 trials

Recruiting

Collection of Lung Fluid and Tissue Samples for Research

Respiratory Tract DiseasesBronchoscopyLeukocyte Disorders
National Heart, Lung, and Blood Institute (NHLBI)550 enrolled1 locationNCT00471250
Recruiting
Phase 2

Study of Tarlatamab as Maintenance Treatment After Chemo-radiotherapy for Limited Stage SCLC Patients

Limited Stage Small Cell Lung CancerThoracic NeoplasmsRespiratory Tract Neoplasms+1 more
Fundación GECP37 enrolled20 locationsNCT07242547
Recruiting
Phase 1

A Study of How Ibuzatrelvir is Taken up Into the Blood of Healthy Adults After Taking Different Tablets of Ibuzatrelvir

Upper respiratory tract infectionsrespiratory tract infectionCOVID-19 (SARS-CoV-2) infection+8 more
Pfizer18 enrolled1 locationNCT07552779
Recruiting
Phase 2

Evaluation of the Clinical Efficacy of Antrrix Probiotics in Improving Recurrent Respiratory Infections in Infants and Young Children

Recurrent Respiratory Tract Infections
Min-Tze LIONG120 enrolled2 locationsNCT07297966
Recruiting

Potential of Interface Care Models to Deliver More Appropriate Care to Patients With Acute Medical Illness

Chronic Obstructive Pulmonary Disease (COPD)PneumoniaInfection+6 more
National University Hospital, Singapore220 enrolled1 locationNCT07536035
Recruiting

A Long-term Observational Study Evaluating the Presentation and Management of Acute Respiratory Tract Infections in Primary Care Across Europe

Acute Respiratory Tract Infection
European Clinical Research Alliance for Infectious Diseases (ECRAID)2,000 enrolled3 locationsNCT06282718
Recruiting
Not Applicable

Evaluation Viral RNA and Virus Infectivity in Exhaled Air Before and After Use of One Dose With ColdZyme Mouth Spray

URTI - Viral Upper Respiratory Tract Infection
Lund University200 enrolled1 locationNCT07041671
Recruiting
Not Applicable

Intravenous Versus Oral Treatment of the Main Acute Infections

CellulitisRespiratory Tract InfectionsUrinary Tract Infections
University of Southern Denmark4,000 enrolled7 locationsNCT06715306
Recruiting
Not Applicable

Comparison of Nasopharyngeal Swab v. Nasopharyngeal Saline Wash or Saliva Collection in Testing for Respiratory Viruses

Respiratory Tract Infections
University of Nebraska1,000 enrolled1 locationNCT05864118
Recruiting
Phase 4

Itraconazole Therapy In Bronchiectasis With Airway Mold

BronchiectasisFungal Infection of Upper Respiratory Tract
Mayo Clinic30 enrolled1 locationNCT07283497
Recruiting

Modern Technologies in Lower Respiratory Tract Infections in Children

Pediatric AsthmaLower Respiratory Tract and Lung InfectionsBronchiolitis Acute+3 more
Helse Møre og Romsdal HF200 enrolled2 locationsNCT07381790
Recruiting
Not Applicable

Continuous Positive Airway Pressure Device or Deep Inspiration Breath Hold in Reducing Tumor Motion in Patients Undergoing Stereotactic Body Radiation Therapy for Lung Cancer

Lung CarcinomaMetastatic Malignant Neoplasm in the LungMalignant Respiratory Tract Neoplasm
M.D. Anderson Cancer Center30 enrolled1 locationNCT03422302
Recruiting
Not Applicable

An Adjunct Test Distinguishing Bacterial From Viral Etiology Improves Resource Utilization and Efficiency in the ED.

Respiratory Tract Infections
The University of Texas Health Science Center, Houston100 enrolled1 locationNCT06070688
Recruiting
Not Applicable

Reducing Overuse of Antibiotics With Decision Support

AsthmaPneumoniaLower Respiratory Tract Infection+1 more
Vanderbilt University Medical Center2,800 enrolled3 locationsNCT06788093
Recruiting
Not Applicable

The Impact of MeMed BV® on Management of Patients With Suspected Lower Respiratory Tract Infections (LRTI) in the Emergency Department (ED) and Urgent Care Center (UCC) ("JUPITER" TRIAL)

Lower Respiratory Tract Infection
MeMed Diagnostics Ltd.1,316 enrolled10 locationsNCT05762302
Recruiting

The Fever Clinic Acute Respiratory Cohort

Influenza Like-illnessCommunity-acquired PneumoniaFebrile Illnesses+2 more
Fudan University1,000 enrolled1 locationNCT07278700
Recruiting

Comparing and Predicting the Risk of Respiratory Tract Infection (RTI) Among Post-menopausal Women on or Without Hormone Replacement Therapy (HRT): an Observational Cohort Study

Menopausal WomenRespiratory Tract Infections (RTI)
Insel Gruppe AG, University Hospital Bern400 enrolled1 locationNCT07292857
Recruiting
Phase 4

Post Authorization Efficacy and Safety Study (PAES) to Confirm and Collect More Clinical Data of Buccalin® Tablets In the Prophylaxis of Recurrent Lower Respiratory Tract Infections (RLRTIs).

Respiratory InfectionLower Respiratory Tract Infection (LRTI)
Laboratorio Farmaceutico SIT srl240 enrolled10 locationsNCT06736288
Recruiting
Not Applicable

CRP and Patient Information Leaflets to Optimise Antibiotic Treatments for Adults With Respiratory Tract Infections in Primary Care in Kyrgyzstan

InflammationRespiratory Tract Infection BacterialRespiratory Tract Infection Viral+2 more
Rigshospitalet, Denmark1,050 enrolled2 locationsNCT07261969
Recruiting
Not Applicable

Outpatient Pediatric Pulse Oximeters in Africa

HypoxiaRespiratory Tract InfectionsChild+1 more
Johns Hopkins University1,200 enrolled1 locationNCT05914324