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Showing 1–24 of 33 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Sputum Sample Clear all
Completed No phase listed Observational Accepts healthy volunteers

Pulmonary Inflammation and Microbiome Changes With Bariatric Surgery in Obese Asthma

NCT04247971
View directory record Official record
Conditions
Asthma, Obesity
Interventions
Blood draw, Sputum collection, Pulmonary function test
Procedure
Lead sponsor
Duke University
Other
Eligibility
21 Years to 60 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 15, 2023 · Synced Sep 5, 2026, 1:53 PM EDT
Completed Not applicable Interventional

Early Detection of Second Lung Cancer in Patients With Stage I Non-small Cell Lung Cancer

NCT00002667
View directory record Official record
Conditions
Lung Cancer
Interventions
cytology specimen collection procedure, immunoenzyme technique, study of high risk factors
Other · Procedure
Lead sponsor
Eastern Cooperative Oncology Group
Network
Eligibility
18 Years to 120 Years
Enrollment
1,100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 2004
U.S. locations
5
States / cities
Tampa, Florida • Des Moines, Iowa • Hackensack, New Jersey + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 21, 2023 · Synced Sep 5, 2026, 1:53 PM EDT
Completed Phase 2 Interventional Results available

A Proof of Concept Study of Inhaled Nitric Oxide for Adults With Pulmonary Non-Tuberculous Mycobacterial Infection

NCT03748992
View directory record Official record
Conditions
Nontuberculous Mycobacterium Infection
Interventions
gNO
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
2
States / cities
Portland, Oregon • Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated May 17, 2021 · Synced Sep 5, 2026, 1:53 PM EDT
Recruiting No phase listed Observational

Molecular Predictors of Cancer in Patients at High Risk of Lung Cancer

NCT00898313
View directory record Official record
Conditions
Lung Cancer
Interventions
comparative genomic hybridization, gene expression microarray analysis, proteomic profiling analysis, biologic sample preservation procedure, nasal brushing, Blood draw, Urine collection, sputum sample, fluorescence bronchoscopy with airway biopsy, fine needle aspiration of the lung, thoracentesis
Genetic · Other · Procedure
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
18 Years and older
Enrollment
4,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2027
U.S. locations
2
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Sep 5, 2026, 1:53 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

The Rhinovirus Hospitalization and Investigation of Nasal-airway Omics (RHINO) Study

NCT07342582
View directory record Official record
Conditions
Rhinovirus
Interventions
Nasal Swab Healthy Surveillance, Nasal Swab Sick Samples, Nasal Swab Hospitalized Cohort, Sick Follow-up Survey, Older Cohort Control Group, Procedural Comfort or Care
Diagnostic Test · Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
Up to 17 Years
Enrollment
670 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 9, 2026 · Synced Sep 5, 2026, 1:53 PM EDT
Recruiting No phase listed Observational

Biomarkers in Patients With Respiratory Tract Dysplasia or Lung Cancer, Head and Neck Cancer, or Aerodigestive Tract Cancer and in Normal Volunteers

NCT00900419
View directory record Official record
Conditions
Esophageal Cancer, Head and Neck Cancer, Lung Cancer, Precancerous Condition
Interventions
immunohistochemistry staining method, laboratory biomarker analysis, sputum cytology, biopsy
Other · Procedure
Lead sponsor
University of Colorado, Denver
Other
Eligibility
21 Years to 90 Years
Enrollment
700 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2027
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 21, 2025 · Synced Sep 5, 2026, 1:53 PM EDT
Completed Phase 2 Interventional

Sputum Cytology in Screening Heavy Smokers For Lung Cancer

NCT00103363
View directory record Official record
Conditions
Lung Cancer
Interventions
cytology specimen collection procedure, physiologic testing, annual screening, study of high risk factors
Other · Procedure
Lead sponsor
University of Colorado, Denver
Other
Eligibility
25 Years and older
Enrollment
3,270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1993 – 1994
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated May 6, 2014 · Synced Sep 5, 2026, 1:53 PM EDT
Active, not recruiting No phase listed Observational

Nashville Early Diagnosis Lung Cancer Project

NCT01475500
View directory record Official record
Conditions
Lung Cancer
Interventions
Sputum sample, Pulmonary function tests, Computerized tomography (CT) scan of the chest, Buccal epithelium collection, Nasal brushings, Bronchoscopy, Bronchoalveolar lavage, Blood sample collection, Urine sample, Questionnaire-data collection
Procedure · Radiation · Other
Lead sponsor
Vanderbilt-Ingram Cancer Center
Other
Eligibility
55 Years to 80 Years
Enrollment
480 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2026
U.S. locations
2
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 11, 2023 · Synced Sep 5, 2026, 1:53 PM EDT
Completed Not applicable Interventional

Fluorescent Light Bronchoscopy Plus White Light Bronchoscopy for Early Detection of Lung Cancer

NCT00019201
View directory record Official record
Conditions
Head and Neck Cancer, Lung Cancer
Interventions
cytology specimen collection procedure, immunohistochemistry staining method, sputum cytology, bronchoscopic and lung imaging studies, bronchoscopy, comparison of screening methods, endoscopic biopsy
Other · Procedure
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1996
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 28, 2015 · Synced Sep 5, 2026, 1:53 PM EDT
Active, not recruiting Not applicable Interventional

The Lung PCA: A Multi-Dimensional Atlas of Pulmonary Premalignancy

NCT03881098
View directory record Official record
Conditions
Lung Cancer
Interventions
Bronchoscopies, Sputum Sample, Venipuncture
Procedure
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
Enrollment
240 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2028
U.S. locations
2
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 5, 2026, 1:53 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Collection of Sputum and Labeling for Lung Cancer

NCT03457415
View directory record Official record
Conditions
Lung Cancer
Interventions
Not listed
Lead sponsor
bioAffinity Technologies Inc.
Industry
Eligibility
21 Years and older
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2025
U.S. locations
3
States / cities
Summit, New Jersey • Albuquerque, New Mexico • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Mar 31, 2025 · Synced Sep 5, 2026, 1:53 PM EDT
Not listed No phase listed Observational

Yersinia Pestis Lateral Flow Immunoassay for Blood Samples

NCT04688996
View directory record Official record
Conditions
Plague, Plague, Bubonic, Plague, Pneumonic, Yersinia Pestis Plague, Yersinia Pestis; Bubo, Yersinia Pestis; Pneumonia, Yersinia Sepsis, Yersinia Pestis Infection, Bubo; Yersinia Pestis, Bubonic; Plague, Skin, Pneumonic Plague
Interventions
Lateral Flow Assay for Pathogens of the Plague
Diagnostic Test
Lead sponsor
Brimrose Technology Corporation
Industry
Eligibility
5 Years to 75 Years
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Dec 13, 2022 · Synced Sep 5, 2026, 1:53 PM EDT
Completed No phase listed Observational

Evaluation of Non-Inferiority of Two Fast Follower Nucleic Acid Amplification Tests

NCT02252198
View directory record Official record
Conditions
Tuberculosis
Interventions
Epistem Genedrive® and MolBio Truenat™
Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
504 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 11, 2017 · Synced Sep 5, 2026, 1:53 PM EDT
Completed No phase listed Observational

Immunophenotyping Assessment in a COVID-19 Cohort

NCT04378777
View directory record Official record
Conditions
Coronavirus Disease 2019 (COVID-19), SARS-CoV-2
Interventions
Biological sample collection, Data Collection: Clinical Care Assessments
Procedure
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
1,227 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
17
States / cities
Tucson, Arizona • Los Angeles, California • San Francisco, California + 14 more
Source: ClinicalTrials.gov public record
Updated May 18, 2022 · Synced Sep 5, 2026, 1:53 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Genetic Mutations and Environmental Exposure in Young Patients With Retinoblastoma and in Their Parents and Young Healthy Unrelated Volunteers

NCT00690469
View directory record Official record
Conditions
Extraocular Retinoblastoma, Intraocular Retinoblastoma, Recurrent Retinoblastoma
Interventions
Laboratory Biomarker Analysis, Questionnaire Administration
Other
Lead sponsor
Children's Oncology Group
Network
Eligibility
Not listed
Enrollment
234 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2008
U.S. locations
49
States / cities
Los Angeles, California • Madera, California • San Francisco, California + 38 more
Source: ClinicalTrials.gov public record
Updated Oct 7, 2019 · Synced Sep 5, 2026, 1:53 PM EDT
Completed No phase listed Observational

TriVerity in the Diagnosis and Prognosis of Emergency Department Patients With Suspected Infections and Suspected Sepsis

NCT04094818
View directory record Official record
Conditions
Respiratory Tract Infections, Urinary Tract Infections, Intra-Abdominal Infections, Skin and Soft Tissue Infection, Suspected Meningitis/Encephalitis or Any Other Infection, Sepsis
Interventions
TriVerity
Diagnostic Test
Lead sponsor
Inflammatix
Industry
Eligibility
18 Years and older
Enrollment
1,441 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
25
States / cities
Mobile, Alabama • Los Angeles, California • Sacramento, California + 22 more
Source: ClinicalTrials.gov public record
Updated Oct 21, 2024 · Synced Sep 5, 2026, 1:53 PM EDT
Completed No phase listed Observational

Evaluation Of The Pan-microbiome and Host Immune Response in CF

NCT02778750
View directory record Official record
Conditions
Cystic Fibrosis (CF)
Interventions
Two-Bronchoscope Technique
Procedure
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 70 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 10, 2023 · Synced Sep 5, 2026, 1:53 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Sputum Labeling Utilizing Synthetic Meso Tetra (4-Carboxyphenyl) Porphine (TCPP) for Detection of Lung Cancer

NCT00894127
View directory record Official record
Conditions
Lung Cancer
Interventions
CyPath
Device
Lead sponsor
Biomoda Inc.
Industry
Eligibility
18 Years and older
Enrollment
128 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
3
States / cities
Waterbury, Connecticut • Newark, Delaware • Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Oct 29, 2019 · Synced Sep 5, 2026, 1:53 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Collection of Lung Fluid and Tissue Samples for Research

NCT00471250
View directory record Official record
Conditions
Leukocyte Disorders, Respiratory Tract Diseases, Bronchoscopy
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
5 Years to 100 Years
Enrollment
550 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 5, 2026, 1:53 PM EDT
Completed Not applicable Interventional

Vitamin D and Microbiota in Cystic Fibrosis

NCT02589444
View directory record Official record
Conditions
Vitamin D Deficiency, Cystic Fibrosis
Interventions
High-Dose Vitamin D3, Stool Sample, Sputum Sample, Sham Comparator, Blood draw
Dietary Supplement · Other · Procedure
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 13, 2017 · Synced Sep 5, 2026, 1:53 PM EDT
Suspended Phase 4 Interventional

TEM-PCR™ Prospective Clinical Utility Study

NCT04248361
View directory record Official record
Conditions
Upper Resp Tract Infection
Interventions
TEM-PCR URI Panel, SOC/Empiric Diagnosis
Diagnostic Test · Other
Lead sponsor
Diatherix Laboratories, LLC
Industry
Eligibility
65 Years and older
Enrollment
314 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
4
States / cities
Athens, Alabama • Huntsville, Alabama
Source: ClinicalTrials.gov public record
Updated Aug 19, 2021 · Synced Sep 5, 2026, 1:53 PM EDT
Completed No phase listed Observational

Rapid Diagnostic Supporting Antimicrobial Stewardship in Patients With Pneumonia

NCT05937126
View directory record Official record
Conditions
Lower Respiratory Tract Infections
Interventions
FilmArray Pneumonia Panel, Culture and antimicrobial susceptibility testing
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
1,203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 9, 2023 · Synced Sep 5, 2026, 1:53 PM EDT
Completed No phase listed Observational

Initial and Chronic Methicillin Resistant Staphylococcus Aureus (MRSA) Infection in Cystic Fibrosis (CF)

NCT02684422
View directory record Official record
Conditions
Methicillin-Resistant Staphylococcus Aureus, Cystic Fibrosis
Interventions
Intervention N/A. Observational study
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
4 Years to 99 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
3
States / cities
Birmingham, Alabama • Chapel Hill, North Carolina • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 19, 2022 · Synced Sep 5, 2026, 1:53 PM EDT
Recruiting Not applicable Interventional

Evaluate the Clinical Performance of the Flow Cytometry - FlowPath Lung Test as a Sensitive and Specific Non-invasive Diagnostic of Sputum Samples to Identify/Detect the Presence of Lung Cancer in High-risk Individuals Who Have Existing Lung Nodules, 6 to <30 mm in Diameter, Determined by LDCT.

NCT07168993
View directory record Official record
Conditions
Lung Cancer (Diagnosis)
Interventions
Standard medical treatment
Other
Lead sponsor
bioAffinity Technologies Inc.
Industry
Eligibility
50 Years to 80 Years
Enrollment
2,063 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
11
States / cities
Palo Alto, California • Grand Junction, Colorado • Bay Pines, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Sep 5, 2026, 1:53 PM EDT