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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

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 Jul 21, 2026, 11:17 AM EDT
Completed Phase 3 Interventional Results available

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

NCT00509106
View directory record Official record
Conditions
Bacterial Pneumonia
Interventions
Ceftaroline fosamil for Injection, Ceftriaxone, Placebo
Drug
Lead sponsor
Forest Laboratories
Industry
Eligibility
18 Years and older
Enrollment
622 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 13, 2017 · Synced Jul 21, 2026, 11:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Internet-Based Sexual Health Education for Middle School Native American Youth

NCT01303575
View directory record Official record
Conditions
Sexually Transmitted Diseases, Pregnancy, HIV Infections
Interventions
HIV, STI and Pregnancy Prevention Curriculum, Control Curricula
Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
12 Years to 14 Years
Enrollment
574 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
4
States / cities
Anchorage, Alaska • Phoenix, Arizona • Portland, Oregon + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 22, 2015 · Synced Jul 21, 2026, 11:17 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

A Validation Study for Detecting Chlamydia and Gonorrhea in Rectal Samples

NCT00827697
View directory record Official record
Conditions
Gonorrhea, Chlamydia
Interventions
Gen-Probe APTIMA Combo2 (AC2)
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
399 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 16, 2016 · Synced Jul 21, 2026, 11:17 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Prospective Collection of Female Specimens for Testing With Gen-Probe APTIMA (Registered Trademark) Assays

NCT01728103
View directory record Official record
Conditions
Chlamydia Infections, Gonorrhea, Trichomonas Infections
Interventions
APTIMA® Trichomonas vaginalis & APTIMA® COMBO 2® Assays
Device
Lead sponsor
Gen-Probe, Incorporated
Industry
Eligibility
16 Years and older · Female only
Enrollment
1,336 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2013
U.S. locations
14
States / cities
Birmingham, Alabama • San Diego, California • North Miami, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Aug 15, 2017 · Synced Jul 21, 2026, 11:17 AM 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 13, 2011 · Synced Jul 21, 2026, 11:17 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Prospective Collection of Female and Male Specimens for PANTHER® System Testing

NCT01638637
View directory record Official record
Conditions
Chlamydia Infections, Gonorrhea
Interventions
APTIMA Assays; PANTHER System
Device
Lead sponsor
Gen-Probe, Incorporated
Industry
Eligibility
16 Years and older
Enrollment
1,492 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
16
States / cities
Birmingham, Alabama • Los Angeles, California • San Francisco, California + 13 more
Source: ClinicalTrials.gov public record
Updated Oct 16, 2013 · Synced Jul 21, 2026, 11:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Check it: A New Approach to Controlling Chlamydia Transmission in Young People

NCT03098329
View directory record Official record
Conditions
Chlamydia Trachomatis Infection, Gonorrhea
Interventions
Ct/GC screening
Other
Lead sponsor
Tulane University
Other
Eligibility
15 Years to 26 Years · Male only
Enrollment
1,907 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Nov 22, 2021 · Synced Jul 21, 2026, 11:17 AM EDT
Completed Not applicable Interventional

Self Sampling for Rapid Turnaround Testing in the Emergency Department

NCT03676816
View directory record Official record
Conditions
Chlamydia Trachomatis, Neisseria Gonorrhoeae
Interventions
vaginal self sampling, provider-performed endocervical sampling
Procedure
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older · Female only
Enrollment
533 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Fresno, California
Source: ClinicalTrials.gov public record
Updated Aug 4, 2021 · Synced Jul 21, 2026, 11:17 AM 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 15, 2012 · Synced Jul 21, 2026, 11:17 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Online HIV Prevention for Young Male Couples

NCT03284541
View directory record Official record
Conditions
Hiv, Chlamydia, Gonorrhea
Interventions
2GETHER, Existing Public Health Practice
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older · Male only
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 27, 2023 · Synced Jul 21, 2026, 11:17 AM 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 2, 2014 · Synced Jul 21, 2026, 11:17 AM EDT
Completed Phase 2 Interventional

Safety and Efficacy Study of Rifalazil for the Treatment of Chlamydia Trachomatis Infection in Women

NCT01631201
View directory record Official record
Conditions
Chlamydia Trachomatis Infection
Interventions
Rifalazil 25 milligram, Azithromycin 1 gram
Drug
Lead sponsor
ActivBiotics Pharma, LLC
Industry
Eligibility
19 Years and older · Female only
Enrollment
82 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
5
States / cities
Birmingham, Alabama • San Diego, California • Indianapolis, Indiana + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 28, 2013 · Synced Jul 21, 2026, 11:17 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 Jul 21, 2026, 11:17 AM EDT
Completed Phase 1 Interventional

Optimizing Strategies to Improve STD Partner Services

NCT00207454
View directory record Official record
Conditions
Chlamydia Trachomatis, Neisseria Gonorrhoeae
Interventions
Social Cognitive Counseling
Behavioral
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
18 Years to 65 Years
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2005
U.S. locations
1
States / cities
Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated Apr 14, 2025 · Synced Jul 21, 2026, 11:17 AM EDT
Completed Not applicable Interventional

Randomized Trial of Advanced Provision Emergency Contraception Among Women With Gonorrhea or Chlamydia

NCT00520455
View directory record Official record
Conditions
Pregnancy
Interventions
levonorgestrel 0.75mg taken twice 12 hours apart (Plan B) and condoms
Drug
Lead sponsor
University of Washington
Other
Eligibility
16 Years to 60 Years · Female only
Enrollment
177 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Nov 14, 2007 · Synced Jul 21, 2026, 11:17 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Cepheid Rectal Sample Validation Study

NCT02099760
View directory record Official record
Conditions
Gonorrhea, Chlamydia, Trichomonas
Interventions
STD testing (GC/Ct/trich)
Device
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
402 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 6, 2019 · Synced Jul 21, 2026, 11:17 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 Jul 21, 2026, 11:17 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Effect of Intensive Fly Control on Trachoma and Ocular Chlamydia Infection in Tanzania

NCT00347763
View directory record Official record
Conditions
Trachoma
Interventions
10% permethrin in water applied as low volume spray
Procedure
Lead sponsor
Johns Hopkins University
Other
Eligibility
12 Months to 8 Years
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2002
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 14, 2013 · Synced Jul 21, 2026, 11:17 AM EDT
Completed Not applicable Interventional

Nucleic Acid Amplification Tests (NAATs) for the Diagnosis of Pharyngeal and Rectal Chlamydia and Gonorrhea Infections

NCT00252096
View directory record Official record
Conditions
Chlamydia Infections, Gonorrhea
Interventions
Nucleic acid amplification test
Device
Lead sponsor
Centers for Disease Control and Prevention
Federal
Eligibility
16 Years and older
Enrollment
3,900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2010
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 26, 2012 · Synced Jul 21, 2026, 11:17 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Trial of an Adapted STD Screening and Risk Reduction Intervention

NCT02513225
View directory record Official record
Conditions
Alcohol Use, Drug Use, Diagnostic Self Evaluation, Gonorrhea, Unprotected Sex, Chlamydia, Trichomonas
Interventions
Project EMPWR, Optimized Standard Care (OSC)
Behavioral · Other
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years to 49 Years
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
Fort Apache, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 26, 2023 · Synced Jul 21, 2026, 11:17 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 Jul 21, 2026, 11:17 AM EDT
Completed Not applicable Interventional Results available

Rapid Diagnostic Assay for Gonorrhea and Chlamydia

NCT05564299
View directory record Official record
Conditions
Urethritis, Cervicitis, Sexually Transmitted Infections
Interventions
Rapid 30-minute Desktop Assay
Diagnostic Test
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 22, 2025 · Synced Jul 21, 2026, 11:17 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Use of a Rapid Test for Gonorrhea & Chlamydia for Women Presenting With Possible Sexually Transmitted Infections

NCT03098394
View directory record Official record
Conditions
Sexually Transmitted Infection, Gonorrhea Female, Chlamydia Females
Interventions
Cepheid Xpert CT/NG Rapid Turnaround Test, Polymerase chain reaction (PCR)
Device
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 30, 2023 · Synced Jul 21, 2026, 11:17 AM EDT