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Showing 1–24 of 88 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Asymptomatic Infections Clear all
Completed Phase 1 Interventional

A Placebo-Controlled, Phase I Clinical Trial to Evaluate the Safety and Immunogenicity of Recombinant Envelope Proteins of HIV-1 gp160 and gp120 in Children >= 1 Month Old With Asymptomatic HIV Infection

NCT00000762
View directory record Official record
Conditions
HIV Infections
Interventions
rgp120/HIV-1MN, rgp120/HIV-1 SF-2, gp160 Vaccine (MicroGeneSys)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
1 Month to 18 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1996
U.S. locations
33
States / cities
Long Beach, California • Los Angeles, California • Oakland, California + 21 more
Source: ClinicalTrials.gov public record
Updated Nov 2, 2021 · Synced Sep 8, 2026, 6:53 PM EDT
Completed Phase 1 Interventional

A Phase I/II Trial of Ribavirin (With Escalation) + Isoprinosine in Asymptomatic HIV-Viremic Patients

NCT00000699
View directory record Official record
Conditions
HIV Infections
Interventions
Inosine pranobex, Ribavirin
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 75 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Aug 25, 2008 · Synced Sep 8, 2026, 6:53 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Malaria Transmission Studies in Mali

NCT01829737
View directory record Official record
Conditions
Malaria, Falciparum
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Months to 65 Years
Enrollment
534 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 1, 2018 · Synced Sep 8, 2026, 6:53 PM EDT
Completed Not applicable Interventional

Aerosols in the Treatment of Asymptomatic Pneumocystis Pneumonia: A Pilot Study Assessing the Effectiveness of Aerosolized Pentamidine as Treatment of Subclinical Pneumocystis Infection in Patients With No Clinical Symptoms

NCT00000707
View directory record Official record
Conditions
Pneumonia, Pneumocystis Carinii, HIV Infections
Interventions
Pentamidine isethionate
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1991
U.S. locations
1
States / cities
Stony Brook, New York
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Sep 8, 2026, 6:53 PM EDT
Completed No phase listed Observational

Clinical Validation of the LumiraDx SARS-CoV-2 & Flu A/B Combo Test

NCT05787444
View directory record Official record
Conditions
SARS-CoV-2, Influenza A, Influenza B, Asymptomatic COVID-19
Interventions
LumiraDx SARS-CoV-2 & Flu A/B
Diagnostic Test
Lead sponsor
LumiraDx UK Limited
Industry
Eligibility
2 Years and older
Enrollment
1,081 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Cullman, Alabama
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Sep 8, 2026, 6:53 PM EDT
Completed Not applicable Interventional

A Pilot Open Label Trial of HIV Therapy With d4T (Stavudine), ddI (Didanosine), Nelfinavir and Hydroxyurea in Subjects With Early Asymptomatic HIV Infection

NCT00002176
View directory record Official record
Conditions
HIV Infections
Interventions
Hydroxyurea, Nelfinavir mesylate, Stavudine, Didanosine
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
16 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2000
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 13, 2011 · Synced Sep 8, 2026, 6:53 PM EDT
Completed Phase 1 Interventional

The Safety and Effectiveness of Different Dose Levels of 1263W94 in the Treatment of Cytomegalovirus (CMV) of the Eyes in HIV-Infected Patients

NCT00002373
View directory record Official record
Conditions
Cytomegalovirus Infections, HIV Infections
Interventions
Maribavir
Drug
Lead sponsor
Glaxo Wellcome
Industry
Eligibility
18 Years and older · Male only
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
2
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 8, 2026, 6:53 PM EDT
Completed No phase listed Observational

COVID-19 Progression in End-Stage Kidney Disease

NCT04495907
View directory record Official record
Conditions
SARS-CoV-2 Infection (Asymptomatic), SARS-CoV-2 Infection (Symptomatic)
Interventions
Not listed
Lead sponsor
Davita Clinical Research
Industry
Eligibility
18 Years to 80 Years
Enrollment
412 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
11
States / cities
Victorville, California • Bridgeport, Connecticut • Minneapolis, Minnesota + 8 more
Source: ClinicalTrials.gov public record
Updated Mar 21, 2022 · Synced Sep 8, 2026, 6:53 PM EDT
Completed Not applicable Interventional

A Multi-Center, Placebo-Controlled, Double-Blind, Randomized Trial Comparing the Virologic and Immunologic Activities of 400 Mg Nevirapine in Combination With Zidovudine Versus Zidovudine Alone in Asymptomatic HIV-1 Infected Patients With 4-12 Months of Prior Zidovudine Therapy and 200-500 CD4+ Cell

NCT00002323
View directory record Official record
Conditions
HIV Infections
Interventions
Nevirapine, Zidovudine
Drug
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
13 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
5
States / cities
Oakland, California • Chicago, Illinois • Baltimore, Maryland + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 8, 2026, 6:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Clinical Simulation Study of a Test Material on the Anterior Nares

NCT05617729
View directory record Official record
Conditions
Colonization, Asymptomatic
Interventions
Saline applied via swab, Povidone-iodine based gel
Other
Lead sponsor
Center for Innovation and Research Organization
Network
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 14, 2022 · Synced Sep 8, 2026, 6:53 PM EDT
Completed Phase 3 Interventional

A Phase III Study to Evaluate the Safety, Tolerance, and Efficacy of Early Treatment With Zidovudine (AZT) in Asymptomatic Infants With HIV Infection

NCT00000750
View directory record Official record
Conditions
HIV Infections
Interventions
Zidovudine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
1 Day to 9 Months
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1996
U.S. locations
41
States / cities
Birmingham, Alabama • Downey, California • Los Angeles, California + 26 more
Source: ClinicalTrials.gov public record
Updated Oct 27, 2021 · Synced Sep 8, 2026, 6:53 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Efficacy Study of Preconception Treatment of an Asymptomatic Bacterial Infection in an Infertility Population

NCT01322971
View directory record Official record
Conditions
Vaginosis, Bacterial, Infertility, Miscarriage
Interventions
Metronidazole, Placebo
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older · Female only
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 19, 2021 · Synced Sep 8, 2026, 6:53 PM EDT
Completed Phase 1 Interventional

A Pharmacokinetic and Tolerance Study of Oral Ganciclovir in HIV-Infected Children With Asymptomatic Cytomegalovirus Infection and Low CD4 Cell Counts or Quiescent Cytomegalovirus Disease

NCT00000805
View directory record Official record
Conditions
Cytomegalovirus Infections, HIV Infections
Interventions
Ganciclovir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
14 Days to 20 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1998
U.S. locations
18
States / cities
Los Angeles, California • Oakland, California • San Diego, California + 10 more
Source: ClinicalTrials.gov public record
Updated Nov 2, 2021 · Synced Sep 8, 2026, 6:53 PM EDT
Not listed No phase listed Observational

Asymptomatic Bacteriuria & Risk of Urinary Tract Infection in Renal Transplants

NCT01349738
View directory record Official record
Conditions
Bacteriuria, Urinary Tract Infections, Asymptomatic Infections, Transplantation Infection
Interventions
Antibiotic
Drug
Lead sponsor
Rice, James C., M.D.
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Aug 31, 2011 · Synced Sep 8, 2026, 6:53 PM EDT
Completed Phase 1 Interventional

A Phase I Multicenter Clinical Trial to Evaluate the Safety and Immunogenicity of Immuno-AG Recombinant HIV gp160 in Asymptomatic HIV Seropositive Individuals

NCT00000633
View directory record Official record
Conditions
HIV Infections
Interventions
gp160 Vaccine (Immuno-AG), Hepatitis B Vaccine (Recombinant)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 60 Years
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1998
U.S. locations
2
States / cities
Baltimore, Maryland • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Sep 8, 2026, 6:53 PM EDT
Terminated Phase 2 Interventional Results available

Asymptomatic Congenital CMV Treatment

NCT03301415
View directory record Official record
Conditions
Congenital Cytomegalovirus Infection
Interventions
Valganciclovir
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
1 Day to 30 Days
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
9
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Louisville, Kentucky + 6 more
Source: ClinicalTrials.gov public record
Updated Jan 25, 2023 · Synced Sep 8, 2026, 6:53 PM EDT
Terminated Not applicable Interventional

Controlled Clinical Trial of Antiviral Cytotoxic T Lymphocyte (CTL) Infusion Following Combination Antiretroviral Drug Therapy for Asymptomatic HIV-1 Infection

NCT00000875
View directory record Official record
Conditions
HIV Infections
Interventions
Indinavir sulfate, Diphenhydramine hydrochloride, Lymphocytes, Activated, Lamivudine, Zidovudine, Acetaminophen, Aldesleukin
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2003
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 13, 2016 · Synced Sep 8, 2026, 6:53 PM EDT
Completed Not applicable Interventional

Safety and Efficacy of Polyethylene Glycolated IL-2 (PEG IL-2) Plus Zidovudine or Dideoxyinosine in HIV Positive, Asymptomatic and Symptomatic Individuals

NCT00001997
View directory record Official record
Conditions
HIV Infections
Interventions
Interleukin-2, Polyethylene Glycolated, Zidovudine, Didanosine
Drug
Lead sponsor
Chiron Corporation
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 8, 2026, 6:53 PM EDT
Not yet recruiting Not applicable Interventional

De-implementing PreOp Urine Testing

NCT07411209
View directory record Official record
Conditions
Urinary Tract Infection, Asymptomatic Bacteriuria
Interventions
Interventional Project Site Visit
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced Sep 8, 2026, 6:53 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Follow On Community Testing Study To Evaluate The Performance of the Lucira COVID-19 All-In-One Test Kit

NCT04720235
View directory record Official record
Conditions
Covid19, Corona Virus Infection
Interventions
Lucira COVID-19 All-In-One test kit
Device
Lead sponsor
Lucira Health Inc
Industry
Eligibility
14 Years to 75 Years
Enrollment
304 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Los Gatos, California
Source: ClinicalTrials.gov public record
Updated Apr 11, 2021 · Synced Sep 8, 2026, 6:53 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

COVID-19 Testing Pilot Study

NCT04843878
View directory record Official record
Conditions
Diagnostic Test, Routine, Coronavirus, Diagnoses Disease, Rapid Coronavirus Test
Interventions
COVID Detect
Diagnostic Test
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
326 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 13, 2021 · Synced Sep 8, 2026, 6:53 PM EDT
Completed No phase listed Observational

Asymptomatic Renal Calculi in Recurrent Urinary Tract Infections

NCT04495699
View directory record Official record
Conditions
Urinary Tract Infections, Kidney Stone
Interventions
None - observational
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
94 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
5
States / cities
Phoenix, Arizona • San Diego, California • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2025 · Synced Sep 8, 2026, 6:53 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Does Straight Catheterization in Short Gynecologic Procedures Cause Bacteriuria?

NCT01926756
View directory record Official record
Conditions
Postoperative Bacteriuria
Interventions
Straight catheterization, No straight catheterization
Procedure
Lead sponsor
Abington Memorial Hospital
Other
Eligibility
18 Years and older · Female only
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2013
U.S. locations
1
States / cities
Abington, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 20, 2013 · Synced Sep 8, 2026, 6:53 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Effect of Standardization of Urine Collection Using PEEZY Device as Compared to Clean Peezy for DAB

NCT05554081
View directory record Official record
Conditions
Asymptomatic Bacteriuria, Urinary Tract Infections
Interventions
Peezy urine collection device
Device
Lead sponsor
Loyola University
Other
Eligibility
18 Years and older · Female only
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Maywood, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 8, 2024 · Synced Sep 8, 2026, 6:53 PM EDT