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Showing 25–40 of 16 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Polymerase Chain Reaction Clear all
Terminated No phase listed Observational

Identification of Viruses Associated With Diseases of Unknown Cause

NCT00359268
View directory record Official record
Conditions
Viral Diseases
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Not listed
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 25, 2020 · Synced Sep 23, 2026, 8:19 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of Safety, Tolerability and Immune Responses of Ebola-S and Marburg Vaccines in Healthy Adults

NCT04723602
View directory record Official record
Conditions
Ebola Virus Disease, Marburg Virus Disease
Interventions
cAd3-Marburg, cAd3-EBO-S
Biological
Lead sponsor
Albert B. Sabin Vaccine Institute
Other
Eligibility
18 Years to 50 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Aug 2, 2022 · Synced Sep 23, 2026, 8:19 AM EDT
Completed No phase listed Observational

Prevalence of Hepatitis C Virus Infection in HIV-Infected Children

NCT00037076
View directory record Official record
Conditions
HIV Infections, Hepatitis C
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
1 Year to 20 Years
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2003
U.S. locations
37
States / cities
Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 29 more
Source: ClinicalTrials.gov public record
Updated Oct 30, 2012 · Synced Sep 23, 2026, 8:19 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

PCR (Polymerase Chain Reaction) Assay for Diagnosis of Sarcoptes Scabiei

NCT02254564
View directory record Official record
Conditions
Scabies
Interventions
Not listed
Lead sponsor
Seton Healthcare Family
Other
Eligibility
Not listed
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
5
States / cities
Austin, Texas • Lockhart, Texas
Source: ClinicalTrials.gov public record
Updated Jul 2, 2018 · Synced Sep 23, 2026, 8:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Polymerase Chain Reaction (PCR) Analysis of Nasal Polyps for Fungal DNA

NCT00739921
View directory record Official record
Conditions
Sinusitis, Nasal Polyps
Interventions
Nasal swab under endoscopic guidance
Procedure
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
260 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2015
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 3, 2019 · Synced Sep 23, 2026, 8:19 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Viral Load in Blood and Lymph Tissues in People Living With HIV

NCT00001316
View directory record Official record
Conditions
HIV
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 100 Years
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 1992
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 21, 2026 · Synced Sep 23, 2026, 8:19 AM EDT
Withdrawn No phase listed Observational

A Study of Patients Who Recently Have Been Infected With HIV

NCT00006415
View directory record Official record
Conditions
HIV Infections
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Horsham, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 8, 2015 · Synced Sep 23, 2026, 8:19 AM EDT
Recruiting Not applicable Interventional

Diagnosis and Treatment of Urinary Tract Infection Using DNA Polymerase Chain Reaction Versus Urine Culture

NCT06808451
View directory record Official record
Conditions
Urinary Tract Infections
Interventions
DNA PCR, Urine Culture
Device · Diagnostic Test
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years and older
Enrollment
136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced Sep 23, 2026, 8:19 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Self-Collected Saliva Samples Without Viral Transport Media for COVID-19 Testing Via RT-PCR

NCT04604145
View directory record Official record
Conditions
SARS-CoV Infection, Polymerase Chain Reaction, Laboratory Testing
Interventions
SARS-CoV-2 testing on the Eppendorf Thermal Cycler PCR system using self-collected saliva as the specimen
Diagnostic Test
Lead sponsor
David Grant U.S. Air Force Medical Center
Federal
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Travis Air Force Base, California
Source: ClinicalTrials.gov public record
Updated Aug 29, 2021 · Synced Sep 23, 2026, 8:19 AM EDT
Completed No phase listed Observational

Epidemiology of Diarrheal Diseases in Pediatric Oncology Patients

NCT02464098
View directory record Official record
Conditions
Diarrhea
Interventions
Not listed
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
Up to 18 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 7, 2022 · Synced Sep 23, 2026, 8:19 AM EDT
Completed Phase 2 Interventional Results available

Evaluate Rituximab in Obtaining PCR (Polymerase Chain Reaction) Negative Leukapheresis Product in Patients With Relapsed Follicular Lymphoma

NCT00856245
View directory record Official record
Conditions
Non-Hodgkins Lymphoma
Interventions
Rituximab
Drug
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
2
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated May 29, 2017 · Synced Sep 23, 2026, 8:19 AM EDT
Completed No phase listed Observational

The Effects of Illnesses on HIV Levels in the Body

NCT00000900
View directory record Official record
Conditions
HIV Infections
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
14
States / cities
Birmingham, Alabama • San Diego, California • Denver, Colorado + 10 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 23, 2026, 8:19 AM EDT
Completed Not applicable Interventional Results available

Implementation of a Molecular Diagnostic for Pediatric Acute Gastroenteritis: The FilmArray GI Panel IMPACT Study

NCT02248285
View directory record Official record
Conditions
Infectious Gastroenteritis
Interventions
FilmArray™ Gastrointestinal (GI) Panel
Device
Lead sponsor
BioFire Diagnostics, LLC
Industry
Eligibility
Up to 18 Years
Enrollment
1,545 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
5
States / cities
Los Angeles, California • Kansas City, Missouri • Columbus, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 25, 2017 · Synced Sep 23, 2026, 8:19 AM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Vaginal Ecosystem and Network in the United States Study

NCT06472765
View directory record Official record
Conditions
Bacterial Vaginosis, Candidiasis, Urinary Tract Infections, Genitourinary Syndrome of Menopause, Lichen Sclerosus, Lichen Planus, Vulvodynia, Endometriosis, Ureaplasma Infections, Cancer, Desquamative Inflammatory Vaginitis
Interventions
Vaginal Swab Collection
Diagnostic Test
Lead sponsor
Vaginal Biome Science
Other
Eligibility
18 Years to 89 Years · Female only
Enrollment
3,250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
20
States / cities
Fullerton, California • Los Angeles, California • Pasadena, California + 16 more
Source: ClinicalTrials.gov public record
Updated Jun 30, 2025 · Synced Sep 23, 2026, 8:19 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Babesia Testing in Blood Donors

NCT01528449
View directory record Official record
Conditions
Transfusion Transmitted Babesiosis
Interventions
B.microti diagnostic blood tests
Biological
Lead sponsor
Imugen
Industry
Eligibility
16 Years and older
Enrollment
90,116 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Norwood, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 11, 2017 · Synced Sep 23, 2026, 8:19 AM EDT
Completed Not applicable Interventional Results available

Rapid Diagnostics for Upper Respiratory Infections in the Emergency Department

NCT02957136
View directory record Official record
Conditions
Respiratory Tract Infections, Influenza, Human, Common Cold
Interventions
Rapid respiratory pathogen nucleic acid amplification test
Device
Lead sponsor
University of California, Davis
Other
Eligibility
1 Year to 101 Years
Enrollment
194 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 18, 2021 · Synced Sep 23, 2026, 8:19 AM EDT