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TrialConditionsStatusPhaseUpdatedMore infoNCT ID
Doxycycline Prophylaxis for Prevention of Sexually Transmitted InfectionsBacterial Infections and Mycoses, Disease Attributes, Genital Diseases, Infections, Neisseriaceae Infections, Pathologic Processes, Pathological Conditions, Signs and Symptoms, Treponema infectious disease, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gonorrhea, gram-negative bacterial infections, infectious disease, sexually transmitted disease, spirochaetales infections, syphilisRecruitingPhase 42026-10-09NCT06738407
Outcomes From Point-of-Care Sexually Transmitted Infection (STI) Testing in an Urban Sexual Health Clinic: A Randomized TrialBacterial Infections and Mycoses, Disease Attributes, Genital Diseases, Infections, Neisseriaceae Infections, Pathologic Processes, Pathological Conditions, Signs and Symptoms, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gonorrhea, gram-negative bacterial infections, infectious disease, sexually transmitted diseaseNot yet recruitingNot applicable2026-10-06NCT07399873
Validation of Chlamydia Diagnostic Codes in TriNetX US EHR DataBacterial Infections and Mycoses, Genital Diseases, Infections, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gram-negative bacterial infections, infectious disease, sexually transmitted diseaseRecruitingNot stated2026-09-22NCT07094373
A Seek, Test, and Treat Intervention to Reduce Chlamydia Trachomatis DisparitiesAIDS, Bacterial Infections and Mycoses, Blood-Borne Infections, Genital Diseases, HIV infectious disease, Infections, Neisseriaceae Infections, RNA Virus Infections, Slow Virus Diseases, Treponema infectious disease, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gonorrhea, gram-negative bacterial infections, immune system disorder, inborn error of immunity, infectious disease, lentivirus infection, sexually transmitted disease, spirochaetales infections, syphilis, uterine carcinosarcoma, viral infectious disease, viral sexually transmitted diseaseRecruitingNot applicable2026-09-21NCT06428643
Pilot HIV Self-Testing And Self-collected STI Testing Strategy for Sex Worker Empowerment StudyBacterial Infections and Mycoses, Disease Attributes, Genital Diseases, Infections, Neisseriaceae Infections, Pathologic Processes, Pathological Conditions, Signs and Symptoms, Treponema infectious disease, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gonorrhea, gram-negative bacterial infections, infectious disease, sexually transmitted disease, spirochaetales infections, syphilisNot yet recruitingNot applicable2026-09-18NCT07829133
Strengthening, Guidance, Health, EmpowermentBacterial Infections and Mycoses, Blood-Borne Infections, DNA Virus Infections, Digestive System Diseases, Flaviviridae infectious disease, Genital Diseases, HIV infectious disease, Hepadnaviridae infectious disease, Infections, RNA Virus Infections, Treponema infectious disease, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gram-negative bacterial infections, hepatitis, hepatitis B virus infection, hepatitis C virus infection, immune system disorder, inborn error of immunity, infectious disease, lentivirus infection, liver disorder, sexually transmitted disease, spirochaetales infections, syphilis, uterine carcinosarcoma, viral hepatitis, viral infectious disease, viral sexually transmitted diseaseNot yet recruitingNot applicable2026-08-26NCT07788599
Multicentre Study Evaluating the Efficacy of a 7-day Course of Doxycycline for the Treatment of Asymptomatic Anal Lymphogranuloma Venereum.Bacterial Infections and Mycoses, Genital Diseases, Infections, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gram-negative bacterial infections, infectious disease, lymphogranuloma venereum, sexually transmitted diseaseNot yet recruitingPhase 22026-08-17NCT07767422
National Rapid TLC: Testing and Linkage to CareBacterial Infections and Mycoses, Genital Diseases, Infections, Neisseriaceae Infections, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gonorrhea, gram-negative bacterial infections, infectious disease, sexually transmitted diseaseNot yet recruitingNot applicable2026-07-28NCT07730801
Healthy Expectancy Through Routine Antenatal STI ScreeningBacterial Infections and Mycoses, Disease Attributes, Female Urogenital Diseases and Pregnancy Complications, Genital Diseases, Infections, Obstetric Labor Complications, Obstetric Labor, Premature, Pathologic Processes, Pathological Conditions, Signs and Symptoms, Premature Birth, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gram-negative bacterial infections, infectious disease, pregnancy disorder, sexually transmitted diseaseRecruitingNot applicable2026-07-02NCT07458802
Evaluation of the Impact of Oral Ivermectin on Musca Sorbens Flies, Putative Vector of TrachomaBacterial Infections and Mycoses, Conjunctival Diseases, Eye Infections, Bacterial, Infections, bacterial conjunctivitis, bacterial infectious disease, chlamydia infectious disease, chlamydiaceae infections, conjunctivitis, corneal disorder, eye disorder, eye infectious disorder, gram-negative bacterial infections, trachomaNot yet recruitingPhase 42026-06-18NCT07657143
STI Testing to Enhance PrEP Use in PregnancyBacterial Infections and Mycoses, Disease Attributes, Genital Diseases, Infections, Neisseriaceae Infections, Pathologic Processes, Pathological Conditions, Signs and Symptoms, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gonorrhea, gram-negative bacterial infections, infectious disease, parasitic infectious disease, protozoa infectious disease, sexually transmitted disease, trichomoniasisRecruitingPhase 32026-06-11NCT06919614
Superiority of On-demand PrEP Versus PEP on Using Doxycycline for Preventing STI in MSMBacterial Infections and Mycoses, Disease Attributes, Genital Diseases, Infections, Neisseriaceae Infections, Pathologic Processes, Pathological Conditions, Signs and Symptoms, Treponema infectious disease, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gonorrhea, gram-negative bacterial infections, infectious disease, sexually transmitted disease, spirochaetales infections, syphilisActive, not recruitingPhase 42026-06-05NCT06188442
Improving Clinic Delivery of HIV-related Anal Health ServicesBacterial Infections and Mycoses, Digestive System Diseases, Digestive System Neoplasms, Genital Diseases, Infections, Neisseriaceae Infections, Neoplasms by Site, Urogenital Diseases, anus disorder, anus neoplasm, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, colorectal neoplasm, digestive system disorder, digestive system neoplasm, gonorrhea, gram-negative bacterial infections, infectious disease, intestinal disorder, neoplasm, rectal disorder, rectal neoplasm, sexually transmitted diseaseNot yet recruitingNot applicable2026-06-03NCT07464236
Using Urine to Study Antibodies & Functional Cell-Mediated Immunity in the Context of Chlamydia TrachomatisBacterial Infections and Mycoses, Genital Diseases, Infections, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gram-negative bacterial infections, infectious disease, sexually transmitted diseaseRecruitingNot stated2026-05-19NCT07596316
Effectiveness of Relationship Education for Reducing HIV Incidence Among Men Who Have Sex With MenAIDS, Bacterial Infections and Mycoses, Blood-Borne Infections, Genital Diseases, HIV infectious disease, Infections, Neisseriaceae Infections, RNA Virus Infections, Slow Virus Diseases, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gonorrhea, gram-negative bacterial infections, immune system disorder, inborn error of immunity, infectious disease, lentivirus infection, sexually transmitted disease, uterine carcinosarcoma, viral infectious disease, viral sexually transmitted diseaseRecruitingNot applicable2026-05-08NCT05678556
Point of Care STI TestingBacterial Infections and Mycoses, Disease Attributes, Genital Diseases, Infections, Neisseriaceae Infections, Pathologic Processes, Pathological Conditions, Signs and Symptoms, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gonorrhea, gram-negative bacterial infections, infectious disease, sexually transmitted diseaseRecruitingNot applicable2026-05-05NCT06844045
Integrated Care Versus Usual Care for Opioid Use Disorder and Infectious Diseases in VeteransBacterial Infections and Mycoses, Blood-Borne Infections, Chemically-Induced Disorders, Digestive System Diseases, Disease Attributes, Flaviviridae infectious disease, Genital Diseases, Infections, Narcotic-Related Disorders, Neisseriaceae Infections, Opioid Use Disorder, Pathologic Processes, Pathological Conditions, Signs and Symptoms, RNA Virus Infections, Treponema infectious disease, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gonorrhea, gram-negative bacterial infections, hepatitis, hepatitis C virus infection, infectious disease, liver disorder, opiate dependence, psychiatric disorder, sexually transmitted disease, spirochaetales infections, substance-related disorder, syphilis, viral hepatitis, viral infectious diseaseNot yet recruitingNot applicable2026-04-24NCT06766331
RESTORE: Comparing Two Approaches to Repeat TT Surgery Performed by Integrated Eye Care Workers (IECWs)Bacterial Infections and Mycoses, Conjunctival Diseases, Eye Infections, Bacterial, Infections, Trichiasis, bacterial conjunctivitis, bacterial infectious disease, chlamydia infectious disease, chlamydiaceae infections, conjunctivitis, corneal disorder, eye disorder, eye infectious disorder, eyelid disorder, gram-negative bacterial infections, trachomaRecruitingNot applicable2026-04-13NCT07322302
Evaluation of Free STI Testing Pilot Projects in Lucerne and Zurich, SwitzerlandAIDS, Bacterial Infections and Mycoses, Blood-Borne Infections, Disease Attributes, Genital Diseases, HIV infectious disease, Infections, Neisseriaceae Infections, Pathologic Processes, Pathological Conditions, Signs and Symptoms, RNA Virus Infections, Slow Virus Diseases, Treponema infectious disease, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gonorrhea, gram-negative bacterial infections, immune system disorder, inborn error of immunity, infectious disease, lentivirus infection, sexually transmitted disease, spirochaetales infections, syphilis, uterine carcinosarcoma, viral infectious disease, viral sexually transmitted diseaseNot yet recruitingNot stated2026-04-08NCT07516912
Phase 1/2 Study of Chlamydia Trachomatis mRNA Vaccine in Adults Aged 18 to 29 YearsBacterial Infections and Mycoses, Genital Diseases, Infections, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gram-negative bacterial infections, infectious disease, sexually transmitted diseaseRecruitingPhase 1 / Phase 22026-04-08NCT06891417
Doxi-Rio: Study on the Use of Doxycycline to Prevent Sexually Transmitted Infections in Rio de JaneiroBacterial Infections and Mycoses, Blood-Borne Infections, Disease Attributes, Genital Diseases, HIV infectious disease, Infections, Neisseriaceae Infections, Pathologic Processes, Pathological Conditions, Signs and Symptoms, RNA Virus Infections, Treponema infectious disease, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gonorrhea, gram-negative bacterial infections, immune system disorder, inborn error of immunity, infectious disease, lentivirus infection, sexually transmitted disease, spirochaetales infections, syphilis, uterine carcinosarcoma, viral infectious disease, viral sexually transmitted diseaseRecruitingNot applicable2026-03-30NCT07500415
The Efficacy of Doxycycline Post Exposure Prophylaxis for Preventing STIs Among MSM in Bangkok, Thailand.Bacterial Infections and Mycoses, Genital Diseases, Infections, Neisseriaceae Infections, Treponema infectious disease, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gonorrhea, gram-negative bacterial infections, infectious disease, sexually transmitted disease, spirochaetales infections, syphilisRecruitingPhase 42026-02-09NCT07397403
Risk Assessment of Community Spread of Multiple Endemic Infectious Diseases in a One Health PerspectiveAdenophorea Infections, Alphavirus infectious disease, Arenaviridae infectious disease, Bacterial Infections and Mycoses, Bunyaviridae infectious disease, Caliciviridae infectious disease, Clostridium infectious disease, DNA Virus Infections, Digestive System Diseases, Disease Attributes, Encephalitis, Arbovirus, Encephalitis, Viral, Enoplea infectious disease, Epstein-Barr virus infection, Euglenozoa Infections, Flaviviridae infectious disease, Flavivirus Infections, Genital Diseases, Hemic and Lymphatic Diseases, Herpesviridae infectious disease, Infections, Infections, Arenavirus, Japanese encephalitis, Mononegavirales infectious disease, Mosquito-Borne Diseases, Mycoplasma Infections, Mycoplasmatales Infections, Neglected Diseases, Nematoda infectious disease, Neuroinflammatory Diseases, Nipah Virus Infection, Norovirus Infections, Paramyxoviridae infectious disease, Parvoviridae infectious disease, Pathologic Processes, Pathological Conditions, Signs and Symptoms, Picornaviridae infectious disease, Q fever, RNA Virus Infections, Reoviridae infectious disease, Rift valley fever, Rotavirus infection, Rubivirus Infections, Secernentea Infections, Severe Fever with Thrombocytopenia Syndrome, Skin and Connective Tissue Diseases, Spirurida Infections, Stomatognathic Diseases, Togaviridae infectious disease, Trematode Infections, Tumor Virus Infections, Urogenital Diseases, Vaccine-Preventable Diseases, Varicella Zoster Virus Infection, Zika virus infectious disease, Zoonoses, adenoviridae infectious disease, arbovirus infection, bacterial infectious disease, bacterial sexually transmitted disease, bordetellosis, brain disorder, brucellosis, burkholderia infectious disease, central nervous system disorder, central nervous system infectious disorder, chickenpox, chikungunya, chlamydia infectious disease, chlamydiaceae infections, dengue disease, digestive system disorder, encephalitis, enterovirus infectious disease, filarial elephantiasis, filariasis, giardiasis, gram-negative bacterial infections, gram-positive bacterial infections, hantavirus infectious disease, helminthiasis, henipavirus infectious disease, hepatitis, hepatitis A virus infection, hepatitis E virus infection, hepatitis, non-human animal, hepatitis, viral, animal, infectious disease, infectious encephalitis, intestinal disorder, leishmaniasis, leptospirosis, liver disorder, lymphatic system disorder, lymphedema, malaria, measles, melioidosis, meningitis, morbillivirus infectious disease, mouth disorder, mumps infectious disease, nervous system disorder, non-human animal disease, parasitic infectious disease, parasitic intestinal disorder, parasitic skin disorder, parotid disorder, parotitis, pertussis, protozoa infectious disease, respiratory system disorder, respiratory tract infectious disorder, rubella, salivary gland disorder, schistosomiasis, sexually transmitted disease, skin disorder, skin disorder caused by infection, spirochaetales infections, tetanus, tick-borne encephalitis, tick-borne infectious disease, trichuriasis, vector-borne disease, viral hemorrhagic fever, viral hepatitis, viral infection of central nervous system, viral infectious disease, yellow feverRecruitingNot stated2026-01-22NCT07358910
Adaptive RCT of Corticosteroids for Severe Chlamydia Psittaci Pneumonia in AdultsBacterial Infections and Mycoses, Community-Acquired Infections, Community-Acquired Pneumonia, Infections, bacterial infectious disease, chlamydia infectious disease, chlamydiaceae infections, gram-negative bacterial infections, ornithosis, pneumonia, respiratory system disorder, respiratory tract infectious disorderNot yet recruitingPhase 32026-01-20NCT07352865
Periodic Presumptive Treatment vs. doxyPEP for STI Control in Kenyan MSMBacterial Infections and Mycoses, Genital Diseases, Infections, Neisseriaceae Infections, Treponema infectious disease, Urogenital Diseases, bacterial infectious disease, bacterial sexually transmitted disease, chlamydia infectious disease, chlamydiaceae infections, gonorrhea, gram-negative bacterial infections, infectious disease, sexually transmitted disease, spirochaetales infections, syphilisRecruitingPhase 42025-11-19NCT06468462