Sexually Transmitted Diseases

The purpose of this study is to monitor pregnancies exposed to gepotidacin and to evaluate possible teratogenic effects or birthweight-lowering effects of this medication relative to the primary outcomes of major congenital malformations (MCMs) and small for gestational age (SGA), as well as to evaluate secondary maternal, fetal, and infant outcomes.

This study will involve evaluating Health-E You/Salud ìTu™, a web-based, pre-visit mobile app designed to support adolescent male youth and his clinicians in discussing sexual and reproductive health (SRH) topics and care. It will test its efficacy among male patients in clinical settings using a stepped wedge cluster randomized controlled trial design.

The goal of this clinical trial is to test the effectiveness of evidence-based Screening, Brief Intervention, and Referral to Treatment (SBIRT) among adult patients who screen positive to one or more risky alcohol or substance use behaviors while seeking care at a sexual and reproductive health (SRH) clinic. The main questions it aims to answer are: * Does SBIRT impact patients' alcohol and substance use, SRH, mental health, physical health, quality of life, and wellbeing? * Does SBIRT effectiveness differ by ethnicity, socioeconomic status, age, gender, and urbanicity? * Does SBIRT effectiveness differ by delivery mode (in-person vs. telemedicine)? Participants will receive in-person and telemedicine SBIRT, or usual care. Participants will complete surveys at interviews at baseline, 30 days, and 3 months. Researchers will compare patients who received SBIRT to patients who receive usual care to see if patients who receive the SBIRT intervention have a greater reduction in negative outcomes as compared to those who receive usual care. In this setting, usual care consists of basic quantity and frequency questions asked inconsistently as part of the admission process and varying by provider, with no standardized approach to screening, treatment, follow-up, or referral.

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, including men who have sex with men, transgender women, and travestis who are living with HIV or using HIV pre-exposure prophylaxis (PrEP). Bacterial STIs such as syphilis, gonorrhea, and chlamydia remain common in these populations, even with existing prevention strategies. This study aims to answer the following questions: whether doxy-PEP can reduce the number of new STIs, whether it is safe and well tolerated, whether participants use it as recommended, and whether its use may contribute to antibiotic resistance or changes in the body's natural bacteria. Doxy-PEP involves taking a dose of doxycycline, an antibiotic, shortly after sexual activity to reduce the risk of acquiring STIs. Participants will first receive information and counseling about doxy-PEP, including its possible benefits and risks, and will then choose whether or not to use this prevention strategy. Those who choose to use doxy-PEP will take doxycycline after sex as instructed and will be followed for up to 48 weeks, with clinic visits approximately every three months. During these visits, participants will be tested for STIs, monitored for side effects, and asked about medication use, sexual health, and overall well-being. Researchers will collect information on new STI diagnoses, safety, and how consistently participants use doxy-PEP. The study will also explore participants' experiences and perceptions of this strategy. The results of this study will help determine whether doxy-PEP is a practical and acceptable approach for STI prevention in Brazil and may inform future public health strategies.

We will compare differences in sexually transmitted infection (STI) detection rates between sexual health survey (SHS)-derived electronic clinical decision support (CDS) versus usual care (e.g. no provision of CDS) using an interrupted time series design. We hypothesize that population-based STI detection rates will be higher when SHS-derived electronic CDS is provided compared to usual care. Secondary analysis will include a comparison of STI detection rates by sexual risk strata (high risk vs. at risk) and race/ethnicity.

Child Trends will conduct a randomized control trial evaluation of Parent Toolkit 2.0, an innovative intervention for parents and caregivers of middle and high school students. Child Trends will collaborate with Morehouse School of Medicine and Tressa Tucker \& Associates, LLC to implement and evaluate the program with 1,000 parent-teen pairs across Georgia. The program includes three components that will be delivered across a three-week period: (1) an online self-paced Parent Guide with information, tips, tools, and resources on adolescent health, including sexual health; (2) four videos modeling parent-teen communication around sex and contraception; and (3) two group-based sessions for parent participants to discuss program content and improve communication skills. The program aims to increase parent knowledge and parent-teen communication about adolescent health, sexual health, and relationships to help youth adopt health-promoting behaviors such as delaying sexual initiation and increasing contraceptive use.

Post-exposure prophylaxis (PEP) using doxycycline 200 mg within 24 hours of unprotected sexual intercourse to prevent sexually transmitted infections has demonstrated a reduction in the incidence of chlamydial and syphilis infections and syphilis infection by 70% and 73% in men who have sex with men (MSM) undergoing pre-exposure prophylaxis prophylaxis (PrEP) for HIV. Other studies are underway or in development on doxycycline prophylaxis for bacterial STIs, which are particularly common in this population. Monitoring adherence to PEP is of great interest in guaranteeing the effectiveness of this strategy and to be able to assess the uptake of PEP among PrEP users. Among the many methods for assessing adherence, measuring drug concentrations is a more accurate measure of adherence than self-reporting. The therapeutic monitoring of doxycycline and the assessment of adherence have been described using plasma and hair samples, allowing estimation of intake over the last 3-4 days and 4 months, respectively. Nevertheless, these biological matrices present several limitations for application in clinical practice: reflecting the duration of exposure should be more in line with the frequency of visits (2 months), and the collection of hair samples may be difficult due to refusal or short hair. On the other hand, interpretation of the hair assay is limited by the degradation of doxycycline in this matrix, which could lead to underestimation of drug intake. By Therefore, new biological matrices are needed for more accurate assessment of doxycycline adherence in post-exposure prevention monitoring. The objective is to evaluate the pharmacokinetics of doxycycline in plasma, whole blood, dried blood spots (DBS), urine and hair after a single dose of doxycycline in men using oral doxycycline for post-exposure prophylaxis of sexually transmitted infections (syphilis or Chlamydia trachomatis) and having sex with men.

We will conduct a randomized trial to compare differences in sexually transmitted infection (STI) treatment adherence between patients receiving text messages versus those receiving usual care (e.g. no text messages). We hypothesize that STI treatment adherence will be 20% higher among patients randomized to receipt of two-way text messaging services.

When REACH Nexus at MAP Centre for Urban Solutions out of St. Michael's Hospital launched its signature program, I'm Ready in 2021, our goal was to democratize access to free HIV self-testing to reach the undiagnosed in Canada. The program, the first of its kind in Canada has been successfully rolling out 50,000 free, HIV self-tests and connecting participants via a mobile app on an iOS or Android smart phone to care. While this is an important milestone in improving access, REACH knows that more needs to be done. An estimated 20-30% of undiagnosed individuals do not have access to a phone to order the HIV self-tests, and many face multiple barriers to accessing healthcare and harm reduction support: chaotic life circumstances, addiction challenges, stigma and more. Everyone in Canada should have equitable access to the health care they need. But REACH knows that this is not the case.So, REACH is working hard to change this. hese ongoing barriers inspired us to continue creating innovative solutions, and launch our second signature program, Our Healthbox. Our Healthbox meets people where they are, with what they need for their health and well-being. This program is scaling up innovations in health technologies to reach undiagnosed individuals with HIV. These smart interactive vending machines will be strategically located across Canada. The goal is to reach people where they live to provide free and low barrier access to HIV self-testing kits, STBBI testing and other harm reduction supplies. Participation in Our Healthbox, as with I'm Ready, also gives us the opportunity to collect important data that will continue to inform and guide REACH Nexus' work to grow and scale innovative health solutions across the country.

Bacterial sexually transmitted infections (STIs) have been steadily increasing in gay, bisexual, and other men who have sex with men (MSM) over the past 2 decades. While that trend started prior to the introduction of human immunodeficiency virus (HIV) pre-exposure prophylaxis (PrEP) in 2012, HIV PrEP has been associated with increases in sexual contacts and decreases in condom use with an resultant acceleration in the increase of bacterial STIs such as gonorrhea, syphilis, and chlamydia.

The purpose of this study is to compare the effectiveness of two mobile health technologies (text messaging or a mobile app) designed to help people take HIV pre-exposure prophylaxis (PrEP) as directed by the clinic. PrEP is the use of a daily anti-HIV medications by HIV-negative people to help prevent HIV infection.

The main objective of this prospective observational cohort study is to investigate the epidemiology, the risk factors and ultimately the incidence of novel HIV infections among individuals at high risk for acquiring HIV via sex practices.