View clinical trials related to Sexually Transmitted Infection.
Filter by:Screening for STIs in MSM is based on multisite samples: urine, anal and oral for PCR targeting C. trachomatis, N. gonorrhoeae, M. genitalium and T. vaginalis, whereas only vaginal self-sampling is recommended in women. Recent publications and observations suggest that a substantial number of STIs are under diagnosed with the current recommendations. The main objective of the study is to assess the number and percentage of additional C. trachomatis and N. gonorrhoeae infections diagnosed by a multiple sampling strategy in women, particularly when the vaginal sampling is negative The secondary objective will assess the acceptability of anal and oropharyngeal self-sampling relative to vaginal self-sampling in women.
Objectives: Efficacy of a meningococcal vaccine against Neisseria gonorrhoea (NG) infection among men who have sex with men (MSM). Design: Parallel randomised double-blind placebo-controlled trial. Setting: A teaching hospital in Hong Kong. Participants: 150 adult MSM at risk of gonorrhoea infection (condomless sex with more than one man within the last six months, history of sexually transmitted infection [STI] diagnosis, inclination to have condomless sex, and other PrEP-eligible criteria) would be recruited into the trial, with half allocated to intervention and control group each. Intervention: Intervention and control group would receive, one month apart, two doses of meningococcal vaccine and normal saline, respectively. Main outcome measures: Safety and efficacy of vaccine against gonorrhoea (time to first gonorrhoea infection and incidence), and behavioural change after vaccination. Expected results: NG incidences in two groups would be compared. Efficacy of vaccine against gonorrhoea would be determined after controlling confounding variables. Characteristics of participants with incident NG would be distinguished from those without incident infections. Change of frequency of sexual activities and networking would be noted. Implications: Strategies on STI screening and vaccination could be informed. Reduced STI burden post-vaccination could be measured with surveillance system.
A longitudinal study to investigate the prevalence of sexually transmitted infections among young women and determine the role of the female genital tract microbiome in fertility
Multicenter cohort study of individuals reporting behavioral risks of HIV acquisition, recruited among those presenting for testing for HIV and other sexually transmitted infections. Overarching goal: to study factors associated with uptake of HIV prevention and (re)testing services in medium-sized cities in Thailand. Primary objective: To estimate the incidence of HIV and other sexually transmitted infections (syphilis, chronic hepatitis B and C) among individuals presenting for retesting. Secondary objectives: - To evaluate the uptake of pre-exposure prophylaxis - To assess retention in the study - To evaluate client HIV knowledge - To describe HIV prevalence and characteristics of individuals newly diagnosed with HIV - To describe characteristics of individuals at risk of HIV infection - To assess the quality of the testing and referral services.
This study aims to evaluate different screening strategies to decrease the burden of Neisseria gonorrhoeae (NG), Chlamydia trachomatis (CT) and Trichomonas vaginalis (TV) among pregnant women, and reduce adverse birth outcomes. In turn it aims to evaluate the cost per pregnant woman screened and treated, cost of adverse birth outcomes, and cost-effectiveness per sexually transmitted infection (STI) and disability-adjusted life-year (DALY) averted. Furthermore, this study will incorporate a vaginal microbiome sub-study aimed to investigate the relationship between the vaginal microbiome and persistent Chlamydial infections in pregnant women. Aim 1 and 2: The intervention includes diagnostic testing at a woman's first antenatal care visit using the Xpert® platform with same-day treatment for Neisseria gonorrhoeae, Chlamydia trachomatis and Trichomonas vaginalis infection with either a test-of-cure three weeks post-treatment (arm 1) or a repeat test at 30-34 weeks gestation (arm 2) compared to the standard of care, i.e. syndromic management (arm 3). Aim 3: Case-control study to investigate role vaginal microbiome in STI treatment outcomes