| Not Yet Recruiting | Integrated Care Versus Usual Care for Opioid Use Disorder and Infectious Diseases in Veterans NCT06766331 | VA Office of Research and Development | N/A |
| Not Yet Recruiting | Improving Clinic Delivery of HIV-related Anal Health Services NCT07464236 | Albert Einstein College of Medicine | N/A |
| Not Yet Recruiting | Evaluation of Free STI Testing Pilot Projects in Lucerne and Zurich, Switzerland NCT07516912 | University of Zurich | — |
| Not Yet Recruiting | Healthy Expectancy Through Routine Antenatal STI Screening NCT07458802 | Adriane Wynn | N/A |
| Not Yet Recruiting | Doxycycline Prophylaxis for Prevention of Sexually Transmitted Infections NCT06738407 | Westat | Phase 4 |
| Recruiting | Risk Assessment of Community Spread of Multiple Endemic Infectious Diseases in a One Health Perspective NCT07358910 | Institut Pasteur du Cambodge | — |
| Recruiting | The Efficacy of Doxycycline Post Exposure Prophylaxis for Preventing STIs Among MSM in Bangkok, Thailand. NCT07397403 | Bangrak STIs Center | Phase 4 |
| Recruiting | Assessing Acceptability and Feasibiity of STI Self-swab Testing, to be Offered at the Time of Telemed Medicati NCT06951438 | Queen's Medical Center | N/A |
| Recruiting | Superiority of On-demand PrEP Versus PEP on Using Doxycycline for Preventing STI in MSM NCT06188442 | Chinese University of Hong Kong | Phase 4 |
| Not Yet Recruiting | A Seek, Test, and Treat Intervention to Reduce Chlamydia Trachomatis Disparities NCT06428643 | Tulane University | N/A |
| Completed | Zenyth: Motivational Interviewing-based Telehealth Intervention for Bacterial Sexually Transmitted Infection S NCT06100250 | University of Michigan | N/A |
| Completed | Combination Primary Care and Prevention Services for Women Who Inject Drugs and Exchange Sex in Seattle, Washi NCT06187064 | University of Washington | N/A |
| Completed | Screening With Tampons: Evaluating Diagnostic Accuracy and HPV and Assessing Participant Views NCT06154239 | Anne's Day Ltd | N/A |
| Unknown | Meatal Swab Yourself With Testing for Infections Collectively NCT05870098 | The Leeds Teaching Hospitals NHS Trust | N/A |
| Completed | A Study to Learn About How Trumenba Vaccine Shots Work Against Gonorrhea Infection in Teenagers and Young Adul NCT05873751 | Pfizer | — |
| Completed | Pay-it-forward Gonorrhea and Chlamydia Testing Among Men in China NCT05723263 | University of North Carolina, Chapel Hill | N/A |
| Completed | Investigating Point-of-care Diagnostics for Sexually Transmitted Infections and Antimicrobial Resistance in Pr NCT05541081 | London School of Hygiene and Tropical Medicine | N/A |
| Unknown | Effectiveness of Relationship Education for Reducing HIV Incidence Among SGM NCT05678556 | Northwestern University | N/A |
| Completed | Expedited Partner Therapy and the HIV Prevention Cascade NCT04553211 | University of California, Los Angeles | N/A |
| Completed | Evaluation of EVO100 for Prevention of Urogenital Chlamydia Trachomatis and Neisseria Gonorrhoeae Infection NCT04553068 | Evofem Inc. | Phase 3 |
| Completed | Adolescent Sexually Transmitted Infection Screening in the Emergency Department NCT03715335 | Children's Hospital Medical Center, Cincinnati | N/A |
| Recruiting | Vienna HIV Infection Via Sex Study NCT05326061 | Medical University of Vienna | — |
| Completed | Pre-exposure Prophylaxis: A Miracle Drug or a Moral Hazard NCT04325555 | New York University | — |
| Completed | Evaluation of Doxycycline Post-exposure Prophylaxis to Reduce Sexually Transmitted Infections in PrEP Users an NCT03980223 | University of California, San Francisco | Phase 4 |
| Completed | A Pragmatic Trial of Two Strategies for Implementing an Effective eHealth HIV Prevention Program (Keep It Up! NCT03896776 | Northwestern University | N/A |
| Completed | Protecting Our Future Generation: Promotion of Protective Sexual Health Practices Among Native American Youth NCT03895320 | Johns Hopkins Bloomberg School of Public Health | N/A |
| Completed | Online HIV Prevention for Young Male Couples NCT03284541 | Northwestern University | Phase 2 |
| Completed | Randomized Trial of an HIV Prevention and Relationship Education Program for Young Male Couples NCT03186534 | Northwestern University | Phase 2 |
| Completed | MAMAS: Mentoring Adolescent Mothers at School NCT03090802 | Drexel University | N/A |
| Completed | Love, Sex & Choices: A Web Series on Mobile Devices to Reduce Black Women's HIV Risk NCT02493647 | Northeastern University | N/A |
| Completed | Trial of an Adapted STD Screening and Risk Reduction Intervention NCT02513225 | Johns Hopkins Bloomberg School of Public Health | N/A |
| Completed | Texting Intervention to Sustain HIV Prevention in Women in High-drug-use Contexts NCT02447484 | University of California, San Diego | N/A |
| Completed | Gonorrhea and Chlamydia HIV-infected Men Who Have Sex With Men NCT02019771 | University of Nebraska | — |
| Completed | Detection of Chlamydia (CT) and Gonorrhea (NG) NCT02055742 | Meridian Bioscience, Inc. | — |
| Completed | Cepheid Rectal Sample Validation Study NCT02099760 | University of Pittsburgh | — |
| Completed | Keep It Up! 2.0: A Comparison of Two Online HIV Intervention Programs for Young Men Who Have Sex With Men NCT01836445 | Northwestern University | N/A |
| Completed | Implementation of a Sexual Health Intervention for Young Men Who Have Sex With Men (MSM) in Two Vietnamese Cit NCT02122094 | National Development and Research Institutes, Inc. | N/A |
| Completed | Safer Sex Program for Young African-American Men NCT01439503 | Richard Crosby | Phase 2 |
| Completed | Expedited Partner Therapy for MSM in Peru NCT01720654 | University of California, Los Angeles | N/A |
| Withdrawn | Project AWARE: Using the Emergency Department (ED) to Prevent Sexually Transmitted Infections (STIs) in Youth NCT01195220 | North Bronx Healthcare Network | N/A |
| Completed | Implementation of an Efficacious Intervention for High Risk Women in Mexico NCT01465607 | University of California, San Diego | N/A |
| Completed | Computer-Assisted Self-Interviews and Health Screening in the Pediatric Emergency Department NCT01708317 | Washington University School of Medicine | N/A |
| Completed | Chlamydia Trachomatis Immunology and Vaccinology Study NCT01150747 | Harold Wiesenfeld | — |
| Completed | Tripartite International Research for the Elimination of Trachoma NCT01202331 | University of California, San Francisco | Phase 4 |
| Terminated | Multi-center Evaluation of the VERSANT® CT/GC DNA 1.0 Assay (kPCR)in Detecting C. Trachomatis and N. Gonorrhoe NCT01167777 | Siemens Healthcare Diagnostics Inc | — |
| Completed | Randomized Trial of Home Versus Clinic-Based STD Testing NCT01654991 | Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) | N/A |
| Completed | Antigen-Specific Cell Mediated Immune Response to Chlamydia Trachomatis NCT00970749 | University of Pittsburgh | — |
| Completed | A Validation Study for Detecting Chlamydia and Gonorrhea in Rectal Samples NCT00827697 | University of Pittsburgh | — |
| Completed | Leveraging Technology as a Clinician Extender to Screen Culturally Diverse Young Women for Chlamydia NCT01140022 | University of California, San Francisco | — |
| Completed | Effectiveness of HIV/Sexually Transmitted Infection Training for Physicians in China NCT00644150 | University of California, Los Angeles | N/A |
| Completed | Home-sampling in Partner Notification of Chlamydia NCT01596946 | Ostergotland County Council, Sweden | N/A |
| Completed | Trachoma Amelioration in Northern Amhara (TANA) NCT00322972 | University of California, San Francisco | Phase 4 |
| Completed | Evaluation of NAATs for Detection of C. Trachomatis and N. Gonorrhoeae From Pharynx, Rectum, Glans & Urethra o NCT00187902 | University of California, San Francisco | — |
| Terminated | Multi-level Interventions for STD Prevention Among Adolescents NCT00146406 | Centers for Disease Control and Prevention | N/A |
| Completed | Using the Healthcare Visit to Improve Contraceptive Use NCT00140296 | Centers for Disease Control and Prevention | N/A |
| Completed | Trachoma Elimination Follow-up NCT00221364 | University of California, San Francisco | Phase 4 |
| Completed | Randomized Trial of Home Versus Clinic-based Screening for Sexually Transmitted Infections NCT01184157 | Washington University School of Medicine | N/A |