Clinical trials: Chlamydia
Methamphetamine-dependence, Rectal Gonorrhea
Inflammation in Methamphetamine and STIs (IMSTI)
This clinical trial aims to investigate the effects of a decline in methamphetamine use on rectal inflammatory cytokine levels, substance use contexts, and HIV/STI risk behavior.
- Conditions
- Methamphetamine-dependence, Rectal Gonorrhea, Rectal Chlamydia
- Trial name
- IMSTI (NCT05162391)
- Testing
- Contingency Management
- Where
- United States
- Volunteers
- 59 people, healthy volunteers welcome
- Sponsor
- University of California, Los Angeles
PrEP Adherence, Sexually Transmitted Infections (STIs)
STI Testing to Enhance PrEP Use in Pregnancy
The investigators are conducting a study in Botswana to see if offering STI testing along with expanded HIV prevention options (PrEP) helps more pregnant women start and continue using PrEP during and after pregnancy.
- Conditions
- PrEP Adherence, Sexually Transmitted Infections (STIs), Pregnancy
- Trial name
- STEP-UP (NCT06919614)
- Testing
- Chlamydia trachomatis, Neisseria gonorrhoeae and Trichomonas vaginalis testing
- Where
- Botswana
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- Botswana Harvard AIDS Institute Partnership
Sexually Transmitted Diseases, Bacterial, Syphilis
Superiority of On-demand PrEP Versus PEP on Using Doxycycline for Preventing STI in MSM
The goal of this clinical trial is to compare the effectiveness of doxycycline taken for on-demand pre-exposure prophylaxis (DoxyODPrEP) and its post-exposure use (DoxyPEP) in preventing bacterial sexually transmitted infections…
- Conditions
- Sexually Transmitted Diseases, Bacterial, Syphilis, Gonorrhea, Chlamydia
- Trial name
- NCT06188442
- Testing
- DoxyODPrEP, DoxyPEP
- Where
- Hong Kong
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Chinese University of Hong Kong
Chlamydia Trachomatis Infection, Vaginal Infection
Azithromycin Compared With Doxycycline for Treating Anorectal Chlamydia Trachomatis Infection Concomitant to a Vaginal Infection
Chlamydia trachomatis is the most commonly reported bacterial sexually transmitted infection (STI), especially among young women. Up to 75% of C. trachomatis infected women are asymptomatic. If untreated, C.
- Conditions
- Chlamydia Trachomatis Infection, Vaginal Infection, Anal Infection
- Trial name
- CHLAZIDOXY (NCT03532464)
- Testing
- azithromycin, doxycycline
- Where
- 7 sites in France
- Volunteers
- 460 people
- Sponsor
- University Hospital, Bordeaux
Chlamydia Trachomatis Genital Infection
Using Urine to Study Antibodies & Functional Cell-Mediated Immunity in the Context of Chlamydia Trachomatis
The goal of this observational study is to learn if we can identify immune biomarkers in first-void urine and vaginal brush samples in Chlamydia trachomatis (CT) positive adult women.
- Trial name
- URSAFE-CT (NCT07596316)
- Testing
- Sampling
- Where
- Belgium
- Volunteers
- 73 people
- Sponsor
- Universiteit Antwerpen
Hiv, Chlamydia
Effectiveness of Relationship Education for Reducing HIV Incidence Among Men Who Have Sex With Men
The purpose of this study is to upgrade an existing relationship education and HIV prevention program. This program is designed for gay, bisexual, queer, and transgender and non-binary people who partner with cisgender men.
- Conditions
- Hiv, Chlamydia, Gonorrhea
- Trial name
- all2GETHER (NCT05678556)
- Testing
- all2GETHER
- Where
- United States
- Volunteers
- 5,000 people, healthy volunteers welcome
- Sponsor
- Northwestern University
Point of Care STI Testing
Point of Care STI Testing
The proposed research hypothesizes that point-of-care testing (POCT) for sexually transmitted infections (STIs) gonorrhea and chlamydia will be a feasible, acceptable, and appropriate implementation strategy for improving HIV…
- Trial name
- NCT06844045
- Testing
- Gonorrhea/chlamydia Point-of-Care Testing
- Where
- United States
- Volunteers
- 6,460 people
- Sponsor
- Icahn School of Medicine at Mount Sinai
Chlamydia Trachomatis
Real World and Epidemiology Study of Medically Attended Chlamydia Trachomatis Among Adults in Germany
This study assesses the epidemiologic situation of chlamydia trachomatis, its complications and long term sequalae and related healthcare resource utilization and costs among adults in Germany.
- Trial name
- NCT07002047
- Where
- Germany
- Volunteers
- 81,239 people
- Sponsor
- Sanofi
Opioid Use Disorder, HIV
Integrated Care Versus Usual Care for Opioid Use Disorder and Infectious Diseases in Veterans
Opioid use disorder (OUD) confers a higher risk of acquiring and transmitting infectious diseases, which may have long-term health consequences in Veterans.
- Conditions
- Opioid Use Disorder, HIV, Hepatitis C Virus, Gonorrhea
- Trial name
- NCT06766331
- Testing
- Integrated care
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Chlamydia Trachomatis Immunization
Phase 1/2 Study of Chlamydia Trachomatis mRNA Vaccine in Adults Aged 18 to 29 Years
The purpose of this study is to evaluate the safety, efficacy, and immunogenicity of different dose levels (low, medium, and high) of Chlamydia messenger ribonucleic acid (mRNA) Vaccine candidate in adult participants aged 18 to…
- Trial name
- NCT06891417
- Testing
- Chlamydia mRNA Vaccine
- Where
- 7 sites in Australia
- Volunteers
- 1,560 people, healthy volunteers welcome
- Sponsor
- Sanofi
HIV (Human Immunodeficiency Virus), Chlamydia
Evaluation of Free STI Testing Pilot Projects in Lucerne and Zurich, Switzerland
The main goal of the observational study is to evaluate participants' satisfaction with free HIV and sexually transmitted infection (STI) testing and counselling offered by the cities of Lucerne and Zurich, Switzerland to young…
- Conditions
- HIV (Human Immunodeficiency Virus), Chlamydia, Gonorrhea, Syphilis
- Trial name
- feSTI (NCT07516912)
- Volunteers
- 1,800 people, healthy volunteers welcome
- Sponsor
- University of Zurich
Sexually Transmitted Diseases, Syphilis
Doxi-Rio: Study on the Use of Doxycycline to Prevent Sexually Transmitted Infections in Rio de Janeiro
The goal of this clinical trial is to learn if doxycycline post-exposure prophylaxis (doxy-PEP) can help prevent bacterial sexually transmitted infections (STIs) among sexual and gender minorities in Rio de Janeiro, Brazil…
- Conditions
- Sexually Transmitted Diseases, Syphilis, Gonorrhea, Chlamydia Infections
- Trial name
- NCT07500415
- Testing
- Doxycycline
- Where
- Brazil
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Oswaldo Cruz Foundation
Chlamydial Infection
A Study of Doxycycline to Treat Chlamydial Infection
This is a Phase 4 blinded, randomized, active-controlled, non-inferiority trial. Final evaluable population will include a minimum 596 individuals: 298 women with confirmed urogenital chlamydia (CT) and 298 men with confirmed…
- Trial name
- NCT05840159
- Testing
- Doxycycline
- Where
- 7 sites in United States, Kenya
- Volunteers
- 526 people
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Early Syphilis
Treatment Responses of Early Syphilis to Ceftriaxone Plus Doxycycline
In a prospective study investigating the prevalence of sexually transmitted infections (STIs) among at-risk people living with HIV (PLWH), the prevalence of Chlamydia trachomatis and Neisseria gonorrhoeae was 24.7% and 12.1%…
- Trial name
- NCT05980871
- Testing
- Doxycycline, Ceftriaxone, benzathine penicillin G
- Where
- Taiwan
- Volunteers
- 109 people
- Sponsor
- National Taiwan University Hospital
Opioid Use Disorder, HIV Infections
Combination Primary Care and Prevention Services for Women Who Inject Drugs and Exchange Sex in Seattle, Washington
The investigators will implement a non-randomized observational clinical trial that will include a pop-up clinic for women who inject drugs (WWID) near venues for exchange sex and drug use in north Seattle.
- Conditions
- Opioid Use Disorder, HIV Infections, Chlamydia, Gonorrhea
- Trial name
- NCT06187064
- Testing
- Mobile Van Clinic
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Washington
Syphilis Infection, Gonorrhea
The Efficacy of Doxycycline Post Exposure Prophylaxis for Preventing STIs Among MSM in Bangkok, Thailand.
The objective of this research is to evaluate the efficacy and safety of doxycycline in MSM for preventing sexually transmitted infections (gonorrhea, chlamydia, and syphilis) in Thailand Participation in this study will last…
- Conditions
- Syphilis Infection, Gonorrhea, Chlamydia
- Trial name
- ThaiDoxyPEP (NCT07397403)
- Testing
- Doxycycline (200mg/day)
- Where
- Thailand
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- Bangrak STIs Center
Dengue, Chikungunya
Risk Assessment of Community Spread of Multiple Endemic Infectious Diseases in a One Health Perspective
RACSMEI addresses the high burden of infectious diseases in low- and middle-income countries, including Cambodia, where limited surveillance and laboratory capacity often obscure etiologies and transmission dynamics.
- Conditions
- Dengue, Chikungunya, Zika Virus Infection, Japanese Encephalitis
- Trial name
- RACSMEI (NCT07358910)
- Where
- Cambodia
- Volunteers
- 10,000 people, healthy volunteers welcome
- Sponsor
- Institut Pasteur du Cambodge
Gonorrhea, Chlamydia
Pay-it-forward Gonorrhea and Chlamydia Testing Among Men in China
PIONEER is a three-arm, programmatic cluster randomized controlled trial (RCT) to compare effectiveness of three implementation strategies, followed by a mixed-methods implementation evaluation study
- Trial name
- NCT05723263
- Testing
- Standard Pay-it-forward, Community Engaged Pay-it-forward, Control arm
- Where
- China
- Volunteers
- 1,200 people, healthy volunteers welcome
- Sponsor
- University of North Carolina, Chapel Hill
Gonorrhea Male, Chlamydia (Male)
Periodic Presumptive Treatment vs. doxyPEP for STI Control in Kenyan MSM
Men who have sex with men (MSM) are at high risk for gonorrhea and chlamydia in Kenya, where nucleic acid amplification testing is not feasible and most infections therefore go undiagnosed.
- Conditions
- Gonorrhea Male, Chlamydia (Male), Syphilis Male
- Trial name
- NCT06468462
- Testing
- WHO-recommended periodic presumptive treatment, Doxycycline post-exposure prophylaxis
- Where
- 3 sites in Kenya
- Volunteers
- 2,900 people, healthy volunteers welcome
- Sponsor
- University of Washington
Gonorrhea, Chlamydia
Adolescent Sexually Transmitted Infection Screening in the Emergency Department
Sexually transmitted infections (STIs) are highly prevalent among adolescents. Clinical practices related to screening, diagnosis, treatment, and prevention of STIs among adolescents are suboptimal.
- Trial name
- STI (NCT03715335)
- Testing
- Targeted STI Screening, Universally Offered STI Screening
- Where
- 5 sites in United States
- Volunteers
- 98,413 people, healthy volunteers welcome
- Sponsor
- Children's Hospital Medical Center, Cincinnati