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ClinicalTrials.gov public records Last synced Oct 24, 2026, 2:41 PM EDT

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Showing 1–24 of 117 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Chlamydial Infection Clear all
Terminated No phase listed Observational Accepts healthy volunteers

Clinical Evaluation of the Aptima® Combo 2® Assay Using the Panther® System in Female Urine Samples

NCT02795975
View directory record Official record
Conditions
Chlamydia Trachomatis, Gonorrhea
Interventions
Not listed
Lead sponsor
Hologic, Inc.
Industry
Eligibility
14 Years and older · Female only
Enrollment
1,766 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
18
States / cities
Birmingham, Alabama • New Haven, Connecticut • Miami, Florida + 15 more
Source: ClinicalTrials.gov public record
Updated Mar 24, 2017 · Synced Oct 24, 2026, 2:41 PM EDT
Active, not recruiting Not applicable Interventional

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

NCT05864118
View directory record Official record
Conditions
Respiratory Tract Infections
Interventions
Respiratory pathogen panel PCR test, COVID-19 antibody test
Diagnostic Test
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Apr 17, 2026 · Synced Oct 24, 2026, 2:41 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Single Arm Trial of Menstrual Cups Among Economically Vulnerable Women to Reduce Bacterial Vaginosis and STIs

NCT05666778
View directory record Official record
Conditions
Bacterial Vaginosis, Vaginal Microbiome, Chlamydia Trachomatis Infection, Neisseria Gonorrheae Infection, Trichomonas Vaginitis
Interventions
Menstrual Cup
Device
Lead sponsor
Rush University Medical Center
Other
Eligibility
15 Years to 35 Years · Female only
Enrollment
408 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Oct 24, 2026, 2:41 PM EDT
Recruiting Not applicable Interventional

Point of Care STI Testing

NCT06844045
View directory record Official record
Conditions
Point of Care STI Testing
Interventions
Gonorrhea/chlamydia Point-of-Care Testing
Behavioral
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
16 Years to 24 Years
Enrollment
6,460 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Oct 24, 2026, 2:41 PM EDT
Completed Phase 2 Interventional

Antibiotic Treatment Trial Directed Against Chlamydia Pneumonia in Multiple Sclerosis

NCT00043264
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Rifampin, Azithromycin
Drug
Lead sponsor
National Center for Research Resources (NCRR)
NIH
Eligibility
18 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 24, 2026, 2:41 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Impact of Water and Health Education Programs on Trachoma and Ocular C. Trachomatis in Niger

NCT00348478
View directory record Official record
Conditions
Trachoma
Interventions
water and health education program to improve hygiene
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
6 Months to 65 Months
Enrollment
720 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 28, 2011 · Synced Oct 24, 2026, 2:41 PM EDT
Not listed Phase 2 Interventional

RESTORE-IT-Study of Rifalazil in Chlamydia Pneumoniae Seropositive Patients With a History of Atherosclerotic Disease

NCT00385385
View directory record Official record
Conditions
Coronary Artery Disease, Cerebrovascular Disease, Peripheral Vascular Disease
Interventions
Rifalazil
Drug
Lead sponsor
ActivBiotics
Industry
Eligibility
50 Years to 85 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
5
States / cities
Lansing, Michigan • Roslyn, New York • Stony Brook, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 30, 2007 · Synced Oct 24, 2026, 2:41 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Increased Access to Emergency Contraceptive Pills

NCT00060463
View directory record Official record
Conditions
Pregnancy, Sexually Transmitted Diseases
Interventions
Increased access to emergency contraceptive pills
Behavioral
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
14 Years to 24 Years · Female only
Enrollment
1,490 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2005
U.S. locations
2
States / cities
Reno, Nevada • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 24, 2026, 2:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluation of Immediate v. Delayed CT/NG Test for Treatment in the ED

NCT01989130
View directory record Official record
Conditions
Reproductive Tract Infections
Interventions
Roche AMPLICOR CT/NG, Cepheid Xpert CT/NG Test
Device
Lead sponsor
George Washington University
Other
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Aug 13, 2019 · Synced Oct 24, 2026, 2:41 PM EDT
Active, not recruiting Phase 4 Interventional

Kebele Elimination of Trachoma for Ocular Health

NCT03335072
View directory record Official record
Conditions
Trachoma
Interventions
Azithromycin
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
Not listed
Enrollment
320,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 23, 2025 · Synced Oct 24, 2026, 2:41 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Comparing Specimen Collection Techniques to Screen for Sexually Transmitted Infections in Pregnant Women: A Pilot Study

NCT03877263
View directory record Official record
Conditions
Sexually Transmitted Diseases
Interventions
Endocervical swab for detection of STI, Vaginal swab for detection of STI
Diagnostic Test
Lead sponsor
OhioHealth
Other
Eligibility
16 Years and older · Female only
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 5, 2021 · Synced Oct 24, 2026, 2:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Primary Care Clinical Excellence Incentive Study

NCT04237883
View directory record Official record
Conditions
Behavioral Economics, Primary Health Care, Health Maintenance, Diabetes, Colorectal Cancer Screening, Cervical Cancer Screening, Chlamydia Screening, HPV Screening
Interventions
Standard communication email, Social comparison Intervention, Leadership Training
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years and older
Enrollment
225 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Brentwood, California
Source: ClinicalTrials.gov public record
Updated Jan 26, 2021 · Synced Oct 24, 2026, 2:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Use of Self-collected Vaginal Swabs as an Innovative Approach to Facilitate Testing for Repeat Chlamydia Infection

NCT00132457
View directory record Official record
Conditions
Chlamydia Infections
Interventions
Self-collected vaginal swab for chlamydia testing
Procedure
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
16 Years and older · Female only
Enrollment
1,830 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2008
U.S. locations
3
States / cities
New Orleans, Louisiana • Jackson, Mississippi • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 7, 2010 · Synced Oct 24, 2026, 2:41 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Clinical Evaluation of Visby Medical Men's Sexual Health Test

NCT07659808
View directory record Official record
Conditions
Sexually Transmitted Diseases
Interventions
Visby Medical Men's STI PCR Test Kit
Diagnostic Test
Lead sponsor
Visby Medical
Industry
Eligibility
14 Years and older · Male only
Enrollment
507 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
5
States / cities
Fort Lauderdale, Florida • Miami Lakes, Florida • Atlanta, Georgia + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 14, 2026 · Synced Oct 24, 2026, 2:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Digital Patient Decision Aid to Increase Sexually Transmitted Infection Testing in the Emergency Department: The STIckER Study

NCT06014177
View directory record Official record
Conditions
STI, Sexually Transmitted Infection (STI), Sexually Transmitted Disease (STD)
Interventions
STIckER, Control
Behavioral · Other
Lead sponsor
Columbia University
Other
Eligibility
14 Years to 24 Years
Enrollment
184 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 25, 2024 · Synced Oct 24, 2026, 2:41 PM EDT
Completed No phase listed Observational

Gonorrhea and Chlamydia HIV-infected Men Who Have Sex With Men

NCT02019771
View directory record Official record
Conditions
HIV Infection, Chlamydia, Gonorrhea
Interventions
Not listed
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years and older · Male only
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 6, 2023 · Synced Oct 24, 2026, 2:41 PM EDT
Completed Phase 3 Interventional Results available

Treatment of Chlamydia Infection Comparing WC2031 Tablets With Vibramycin

NCT01113931
View directory record Official record
Conditions
Urogential Chlamydia Trachomatis Infection
Interventions
Doxycyline Hyclate tablet, Vibramycin (doxycyline hyclate) capsule
Drug
Lead sponsor
Warner Chilcott
Industry
Eligibility
19 Years to 45 Years
Enrollment
495 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
43
States / cities
Birmingham, Alabama • Foley, Alabama • Tucson, Arizona + 38 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2012 · Synced Oct 24, 2026, 2:41 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Home Screening for Chlamydia Surveillance

NCT00177437
View directory record Official record
Conditions
Chlamydia Trachomatis, Gonorrhea
Interventions
home testing kit
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
15 Years to 29 Years · Female only
Enrollment
403 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2005
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 13, 2007 · Synced Oct 24, 2026, 2:41 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Clinical Study of a Single-Use, Point-of-Care Molecular Diagnostic Device for the Detection of Neisseria Gonorrhoeae (NG), Trichomonas Vaginalis (TV), and Chlamydia Trachomatis (CT) Utilizing Vaginal Swabs

NCT03596151
View directory record Official record
Conditions
Chlamydial Infection, Gonorrhoea, Trichomoniasis
Interventions
Click Device
Device
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
14 Years to 99 Years · Female only
Enrollment
295 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
8
States / cities
Los Angeles, California • San Diego, California • San Francisco, California + 5 more
Source: ClinicalTrials.gov public record
Updated Aug 24, 2021 · Synced Oct 24, 2026, 2:41 PM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Azithromycin in Control of Trachoma II

NCT00286026
View directory record Official record
Conditions
Trachoma
Interventions
Azithromycin
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
Not listed
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2009
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 16, 2012 · Synced Oct 24, 2026, 2:41 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Evaluation of NAATs for Detection of C. Trachomatis and N. Gonorrhoeae From Pharynx, Rectum, Glans & Urethra of MSM

NCT00187902
View directory record Official record
Conditions
Sexually Transmitted Diseases, Chlamydia, Gonorrhea
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
Male only
Enrollment
907 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 14, 2011 · Synced Oct 24, 2026, 2:41 PM EDT
Completed No phase listed Observational Results available

A Study to Learn About How Trumenba Vaccine Shots Work Against Gonorrhea Infection in Teenagers and Young Adults in the United States.

NCT05873751
View directory record Official record
Conditions
Gonorrhea, Chlamydia, Meningococcal Vaccines
Interventions
Trumenba Vaccine, MenACWY Vaccine
Biological
Lead sponsor
Pfizer
Industry
Eligibility
15 Years to 30 Years
Enrollment
1,307,378 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 17, 2025 · Synced Oct 24, 2026, 2:41 PM EDT
Completed No phase listed Observational

Leveraging Technology as a Clinician Extender to Screen Culturally Diverse Young Women for Chlamydia

NCT01140022
View directory record Official record
Conditions
Chlamydia, Screening
Interventions
CT Screening
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 25 Years · Female only
Enrollment
346 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
6
States / cities
Fresno, California • Oakland, California • San Francisco, California
Source: ClinicalTrials.gov public record
Updated Oct 3, 2014 · Synced Oct 24, 2026, 2:41 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Partnership for Rapid Elimination of Trachoma

NCT00792922
View directory record Official record
Conditions
Trachoma
Interventions
Azithromycin
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
Up to 5 Years
Enrollment
128 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2014
U.S. locations
2
States / cities
San Francisco, California • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 18, 2017 · Synced Oct 24, 2026, 2:41 PM EDT