| Integrating Enhanced HIV PrEP Into a STI Clinic in Lilongwe (NCT05307991) | University of North Carolina, Chapel Hill | 2022-03-09 |
| Clinical Trial of Doxycycline VS BPG for Early Syphilis (SY-DOXY) (NCT04838717) | Assistance Publique - Hôpitaux de Paris | 2021-12-06 |
| Ending the HIV Epidemic Through Point-of-Care Technologies (EHPOC) (NCT04793750) | Johns Hopkins University | 2021-08-18 |
| Cefixime Versus Benzathine Penicillin G in Treatment of Early Syphilis (NCT06907316) | Bulovka Hospital | 2021-07-13 |
| Cefixime Clinical Trial (NCT04958122) | University of Southern California | 2021-06-20 |
| Interventions for Enhancing Adherence to Syphilis Treatment and Follow-up: Study Protocol for the Health Information and Monitoring of Sexually Transmitted Infections (SIM) Randomized Controlled Trial (NCT04753125) | Hospital Moinhos de Vento | 2021-04-01 |
| Impact of COVID-19 on Provision and Uptake of Prevention of Mother-to-child Transmission of HIV Services in Zimbabwe (NCT04782739) | University of Zimbabwe | 2021-03-15 |
| Syphilis Self-testing to Expand Test Uptake Among Men Who Have Sex With Men (SST) (NCT04480749) | London School of Hygiene and Tropical Medicine | 2020-10-14 |
| Point of Care Tests for Syphilis and HIV (NCT04514848) | University of Alberta | 2020-07-27 |
| Vienna HIV Infection Via Sex Study (NCT05326061) | Medical University of Vienna | 2020-07-01 |
| Pre-exposure Prophylaxis: A Miracle Drug or a Moral Hazard (NCT04325555) | New York University | 2020-01-20 |
| Evaluation of Doxycycline Post-exposure Prophylaxis to Reduce Sexually Transmitted Infections in PrEP Users and HIV-infected Men Who Have Sex With Men (NCT03980223) | University of California, San Francisco | 2019-11-26 |
| Oral Doxycycline for the Prevention of Syphilis in Men Who Have Sex with Men (DaDHS) (NCT02864550) | British Columbia Centre for Disease Control | 2019-08-15 |
| Implementation Strategy of Bio-molecular Techniques for Early Diagnose of Congenital Syphilis and Chagas Diseases (NCT04084379) | Hospital de Niños R. Gutierrez de Buenos Aires | 2019-07-01 |
| Phase 4 Comparative Trial of Benzathine Penicillin G for Treatment of Early Syphilis in Subjects With or Without HIV Infection (NCT03637660) | National Institute of Allergy and Infectious Diseases (NIAID) | 2018-10-31 |
| Cefixime for Alternative Syphilis Treatment (NCT03660488) | University of California, Los Angeles | 2018-09-03 |
| Tenofovir/Emtricitabine With Doxycycline for Combination HIV and Syphilis Pre-exposure Prophylaxis in HIV-negative MSM (NCT02844634) | British Columbia Centre for Disease Control | 2018-05-15 |
| Transcriptomic and Next Generation Sequencing Approaches to Infection With Treponema Pallidum (NCT03310424) | London School of Hygiene and Tropical Medicine | 2017-10-27 |
| Project MATLINK: Development and Evaluation of a Screening, Brief Intervention, & Referral to Treatment (SBIRT) Program for Opioid Dependent Prisoners and Probationers Transitioning to the Community (NCT04947475) | Yale University | 2017-01-01 |
| The Association Between Molecular Typing of Treponema Pallidum and Treatment Efficacy and Clinical Findings (NCT02871505) | Peking Union Medical College Hospital | 2016-08-01 |
| Finding the Latent Treponema Pallidum (NCT03754517) | Peking Union Medical College Hospital | 2016-08-01 |
| One Dose Versus Three Weekly Doses of Benzathine Penicillin G for Patients With Early Syphilis (NCT02857959) | Jun Li | 2016-08-01 |
| Texting Intervention to Sustain HIV Prevention in Women in High-drug-use Contexts (NCT02447484) | University of California, San Diego | 2015-07-01 |
| Evaluation of Enhanced Syphilis Screening Among HIV-positive Men (NCT02019043) | Unity Health Toronto | 2015-02-01 |
| Treponema Pallidum-specific Proteomic Changes in Patients With Incident Syphilis Infection (NCT02059525) | Institute of Tropical Medicine, Belgium | 2014-07-01 |
| Dual Rapid HIV & Syphilis Tests in Zambia (NCT02445846) | University of North Carolina, Chapel Hill | 2014-05-01 |
| Introduction Study of Dual HIV & Syphilis Rapid Diagnostic Tests in Antenatal Clinics in Colombia (NCT02454816) | Universidad Nacional de Colombia | 2014-05-01 |
| Evaluating the Effectiveness of Point-of-care Diagnostic Technologies in MCH Services in Mozambique (NCT02191527) | Elizabeth Glaser Pediatric AIDS Foundation | 2013-09-01 |
| Lumbar Puncture and Syphilis Outcome (NCT02031146) | University of Washington | 2013-08-01 |
| Implementation of a Sexual Health Intervention for Young Men Who Have Sex With Men (MSM) in Two Vietnamese Cities (NCT02122094) | National Development and Research Institutes, Inc. | 2013-05-01 |
| Safer Sex Program for Young African-American Men (NCT01439503) | Richard Crosby | 2012-09-01 |
| Evaluation of the MBio Combined Syphilis/HIV Point-of-Care Diagnostic Test (NCT01530672) | PATH | 2012-01-01 |
| Implementation of an Efficacious Intervention for High Risk Women in Mexico (NCT01465607) | University of California, San Diego | 2011-11-01 |
| Efficacy of Doxycycline Prophylaxis to Reduce Syphilis in High-Risk, HIV-Positive MSM (NCT02257658) | Los Angeles LGBT Center | 2011-09-01 |
| Human Papillomavirus Infection and Knowledge and Attitudes About HPV Vaccines Among Men Who Have Sex With Men (MSM) (NCT01300689) | Chinese Academy of Medical Sciences | 2011-07-01 |
| A Methadone Maintenance Treatment Outcome Study in Three Provinces in China (NCT01315054) | Centers for Disease Control and Prevention | 2011-05-01 |
| Behavioral Science Aspects of Rapid Test Acceptance (NCT01317784) | California State University, Long Beach | 2011-05-01 |
| Injecting Drug Use Community Intervention Trial (NCT01108614) | National Center for AIDS/STD Control and Prevention, China CDC | 2009-06-01 |
| (Men Who Have Sex With Men) MSM Community Intervention Trial (NCT01068015) | National Center for AIDS/STD Control and Prevention, China CDC | 2009-06-01 |
| Video Tool to Promote Knowledge of Syphilis as Facilitator of HIV Transmission (NCT00553111) | Jacobi Medical Center | 2006-11-01 |
| Syphilis Video Tool to Promote Knowledge and Testing in the ED (NCT00552539) | Jacobi Medical Center | 2006-06-01 |
| Lay Health Advisors for Sexually Transmitted Disease Prevention (NCT00207506) | Centers for Disease Control and Prevention | 2004-10-01 |
| Trial of Male Circumcision: HIV, Sexually Transmitted Disease (STD) and Behavioral Effects in Men, Women and the Community (NCT00124878) | Wawer, Maria J., M.D. | 2003-08-01 |
| Male Circumcision for HIV Prevention in Rakai, Uganda (NCT00425984) | National Institute of Allergy and Infectious Diseases (NIAID) | 2002-08-01 |
| Multi-site Study of Rapid Diagnostic Syphilis Assays (NCT00300534) | Centers for Disease Control and Prevention | 2002-08-01 |
| Safety and Acceptability of Carraguard™ Among HIV-negative Couples in Thailand (NCT00213057) | Population Council | 2001-06-01 |
| Azithromycin/Bicillin Syphilis (NCT00031499) | National Institute of Allergy and Infectious Diseases (NIAID) | 2000-06-01 |
| Safety, Acceptability and Preliminary Effectiveness of Carraguard™ (PC-515) in Preventing HIV/STI Transmission (NCT00213018) | Population Council | 1999-10-01 |
| Estimating the Incidence of HIV Infection Among Men Who Have Sex With Men in Peru and Ecuador (NCT00279331) | National Institute of Allergy and Infectious Diseases (NIAID) | |
| HIV and Genital Herpes Among High-Risk Men Who Have Sex With Men (MSM) in Lima, Peru (NCT00023582) | National Institute of Allergy and Infectious Diseases (NIAID) | |