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Showing 1–24 of 119 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: CHLAMYDIA INFECTIONS Clear all
Completed Not applicable Interventional Accepts healthy volunteers

STI/HIV Intervention Behavioral Intervention Program

NCT04547413
View directory record Official record
Conditions
Sexually Transmitted Infections
Interventions
STI/HIV Intervention Behavioral Intervention Program
Behavioral
Lead sponsor
Madigan Army Medical Center
Federal
Eligibility
18 Years to 30 Years
Enrollment
155 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
2
States / cities
Fayetteville, North Carolina • Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Dec 19, 2024 · Synced Sep 12, 2026, 2:06 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

A Seek, Test, and Treat Intervention to Reduce Chlamydia Trachomatis Disparities

NCT06428643
View directory record Official record
Conditions
Chlamydia, Gonorrhea, Hiv, Syphilis
Interventions
Chlamydia, gonorrhea, syphilis, and HIV screening
Other
Lead sponsor
Tulane University
Other
Eligibility
15 Years to 26 Years
Enrollment
2,322 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Sep 12, 2026, 2:06 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Evaluation of EVO100 for Prevention of Urogenital Chlamydia Trachomatis and Neisseria Gonorrhoeae Infection

NCT04553068
View directory record Official record
Conditions
Sexually Transmitted Diseases, Gonorrhea, Chlamydia
Interventions
EVO100, Placebo
Drug
Lead sponsor
Evofem Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
1,892 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
98
States / cities
Birmingham, Alabama • Mobile, Alabama • Mesa, Arizona + 71 more
Source: ClinicalTrials.gov public record
Updated Jan 29, 2024 · Synced Sep 12, 2026, 2:06 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Non-Invasive Sexually Transmitted Disease Testing in Women Seeking Emergency Contraception or Urine Pregnancy Testing

NCT00978848
View directory record Official record
Conditions
Trichomonas Vaginitis, Chlamydia Trachomatis, Neisseria Gonorrhoeae Infection
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
15 Years and older · Female only
Enrollment
305 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 17, 2016 · Synced Sep 12, 2026, 2:06 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Clinical Evaluation of the Click Sexual Health Test for the Detection of Neisseria Gonorrhoeae (NG), Trichomonas Vaginalis (TV), and Chlamydia Trachomatis (CT) in Women

NCT04098900
View directory record Official record
Conditions
Chlamydial Infection, Gonococcal Infection, Trichomoniasis
Interventions
Click Sexual Health Test
Diagnostic Test
Lead sponsor
Visby Medical
Industry
Eligibility
14 Years to 99 Years · Female only
Enrollment
309 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
5
States / cities
Fort Lauderdale, Florida • Saint Paul, Minnesota • St Louis, Missouri + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 16, 2020 · Synced Sep 12, 2026, 2:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Protecting Our Future Generation: Promotion of Protective Sexual Health Practices Among Native American Youth and Young Adults Through an Assets-based Self-care Intervention

NCT03895320
View directory record Official record
Conditions
Sexual Behavior, Unprotected Sex, Gonorrhea, Chlamydia, Trichomonas, Sexually Transmitted Diseases, Adolescent Behavior, Self Evaluation
Interventions
Sexual Health Risk Assessment, Sexual Health Score, Sexual Health Messaging, Water SSB Quiz, Water SSB Score, Water SSB Messaging, STI Screening
Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
14 Years to 26 Years
Enrollment
219 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Whiteriver, Arizona
Source: ClinicalTrials.gov public record
Updated Feb 22, 2024 · Synced Sep 12, 2026, 2:06 AM EDT
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 23, 2017 · Synced Sep 12, 2026, 2:06 AM EDT
Completed No phase listed Observational

Etiology of Community Acquired Pneumonia

NCT00471757
View directory record Official record
Conditions
Streptococcus Pneumonia, Haemophilus Influencae, Mycoplasma Pneumonia, Chlamydia Pneumonia
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2017
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 12, 2018 · Synced Sep 12, 2026, 2:06 AM EDT
Completed Not applicable Interventional Results available

Zenyth: Motivational Interviewing-based Telehealth Intervention for Bacterial Sexually Transmitted Infection Screening

NCT06100250
View directory record Official record
Conditions
Sexually Transmitted Diseases, Gonorrhea, Chlamydia, Syphilis, HIV
Interventions
Motivational interviewing and specimen self-collection
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 30, 2025 · Synced Sep 12, 2026, 2:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

NeuMoDx PrEDiCTiNG Study Evaluation Plan

NCT03970850
View directory record Official record
Conditions
Chlamydia Trachomatis Infection, Neisseria Gonorrheae Infection
Interventions
NeuMoDx CT/NG Assay, FDA-cleared NAATs
Diagnostic Test
Lead sponsor
NeuMoDx Molecular, Inc.
Industry
Eligibility
14 Years to 80 Years
Enrollment
4,017 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
15
States / cities
Birmingham, Alabama • North Miami, Florida • Orlando, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Jun 11, 2020 · Synced Sep 12, 2026, 2:06 AM EDT
Completed Not applicable Interventional Results available

Computer-Assisted Self-Interviews and Health Screening in the Pediatric Emergency Department

NCT01708317
View directory record Official record
Conditions
Gonorrhea, Chlamydia
Interventions
ACASI
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
15 Years to 21 Years
Enrollment
801 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 7, 2013 · Synced Sep 12, 2026, 2:06 AM 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 22, 2025 · Synced Sep 12, 2026, 2:06 AM 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 4, 2026 · Synced Sep 12, 2026, 2:06 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Multi-level Interventions for STD Prevention Among Adolescents

NCT00146406
View directory record Official record
Conditions
Chlamydia
Interventions
Project Connect
Behavioral
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
11 Years to 20 Years
Enrollment
36,502 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2012
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 10, 2012 · Synced Sep 12, 2026, 2:06 AM 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 29, 2007 · Synced Sep 12, 2026, 2:06 AM EDT
Completed Phase 3 Interventional Results available

Comparative Study of Ceftaroline vs. Ceftriaxone in Adult Subjects With Community-Acquired Pneumonia

NCT00621504
View directory record Official record
Conditions
Bacterial Pneumonia
Interventions
Ceftaroline fosamil for Injection, IV Ceftriaxone, Placebo, Clarithromycin
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years and older
Enrollment
606 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
12
States / cities
Los Angeles, California • Pasadena, California • Sacramento, California + 9 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2017 · Synced Sep 12, 2026, 2:06 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Immunopathogenesis of Chlamydia

NCT00607659
View directory record Official record
Conditions
CHLAMYDIA INFECTIONS
Interventions
No intervention, only observational
Other
Lead sponsor
Arkansas Children's Hospital Research Institute
Other
Eligibility
11 Years to 21 Years · Female only
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2016
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Apr 13, 2016 · Synced Sep 12, 2026, 2:06 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Antenatal Chlamydia Trachomatis and Neisseria Gonorrhoeae Testing to Prevent Adverse Neonatal Consequences

NCT04955717
View directory record Official record
Conditions
Chlamydia Trachomatis Infection, Neonatal Infection, Preterm Birth, Gonorrhea
Interventions
Chlamydia trachomatis and Neisseria gonorrhoeae screening using the GeneXpert
Other
Lead sponsor
University of Southern California
Other
Eligibility
15 Years and older · Female only
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 2, 2025 · Synced Sep 12, 2026, 2:06 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Randomized Trial of an HIV Prevention and Relationship Education Program for Young Male Couples

NCT03186534
View directory record Official record
Conditions
Hiv, Chlamydia, Gonorrhea, Relation, Interpersonal
Interventions
2GETHER, Positive Affect Enhancement
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older · Male only
Enrollment
256 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 7, 2023 · Synced Sep 12, 2026, 2:06 AM 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 17, 2017 · Synced Sep 12, 2026, 2:06 AM EDT
Recruiting Not applicable Interventional

RESTORE: Comparing Two Approaches to Repeat TT Surgery Performed by Integrated Eye Care Workers (IECWs)

NCT07322302
View directory record Official record
Conditions
Trachoma, Eye Diseases, Trichiasis
Interventions
B-RAP, BLTR
Procedure
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Sep 12, 2026, 2:06 AM EDT
Completed Not applicable Interventional

Randomized Trial of Home Versus Clinic-based Screening for Sexually Transmitted Infections

NCT01184157
View directory record Official record
Conditions
Chlamydia, Gonorrhea
Interventions
Home screening, Clinic screening
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
14 Years to 45 Years · Female only
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 17, 2010 · Synced Sep 12, 2026, 2:06 AM 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 23, 2026 · Synced Sep 12, 2026, 2:06 AM EDT
Completed No phase listed Observational

Chlamydia Trachomatis Immunology and Vaccinology Study

NCT01150747
View directory record Official record
Conditions
Chlamydia
Interventions
ceftriaxone, Azithromycin
Drug
Lead sponsor
Harold Wiesenfeld
Other
Eligibility
15 Years to 35 Years · Female only
Enrollment
347 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
4
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 2, 2015 · Synced Sep 12, 2026, 2:06 AM EDT