Genital Chlamydia infections have increased over 4-fold in the last decade. Untreated infections lead to pelvic inflammatory disease, ectopic pregnancy and infertility. These conditions are due to the inflammatory immune response elicited by infections that cause scarring and oviduct blockage. The proposed studies will determine how the immune system causes tissue damage and how this damage can be avoided to enable the development a vaccine that protects women against infection and infertility.
Antibiotic Treatment Of Male Partners To Reduce Recurrence Of Bacterial Vaginosis In Women: A Randomised Double-blind Controlled Trial
Funder
National Health and Medical Research Council
Funding Amount
$636,674.00
Summary
Bacterial vaginosis (BV) is the most common vaginal infection in women. Healthy bacteria are lost and replaced by bacteria that cause unpleasant discharge and odour. BV puts women at increased risk of sexually transmitted infections, HIV, miscarriage and preterm delivery. Over 50% of women given antibiotics get BV back again. Studies suggest these bacteria are being sexually transmitted. We are conducting a trial of antibiotic treatment of women and their male partners to improve BV cure.
A Randomised Controlled Trial (RCT) Of Azithromycin Versus Doxycycline For The Treatment Of Rectal Chlamydia Infection In Men Who Have Sex With Men.
Funder
National Health and Medical Research Council
Funding Amount
$797,906.00
Summary
Rectal chlamydia is very common among gay men; it can exist for long periods without symptoms leading to ongoing transmission. Azithromycin (1 gram single dose) or 7 days doxycycline (100mg twice daily) are the two recommended treatments globally. But, there is concern about rectal chlamydia treatment with reports of up to 22% failure following azithromycin. We will conduct a randomised trial to compare these treatments for rectal chlamydia and determine which drug works better.
Systematic Investigation Of Conceivable Mechanisms That Could Lead To False Positive Diagnoses Of Sexually Transmitted Infections In Young Children.
Funder
National Health and Medical Research Council
Funding Amount
$1,008,839.00
Summary
Diagnosis of a sexually transmitted infection (STI) in a young child has serious social and legal consequences, because it is usually regarded as indicative of sexual abuse. It is therefore critical to understand the probability of such a diagnosis in the absence of sexual abuse. We will investigate false positives that arise by contamination of the urogenital site by STI agents that also infect the eye, and the transfer of contaminants from fingers to diagnostic specimens.
Use Of Molecular Resistance Assays To Provide Alterative Oral Treatment Strategies For Gonorrhoea In Indigenous And Other High-risk Populations; A Randomised Cluster Trial
Funder
National Health and Medical Research Council
Funding Amount
$828,671.00
Summary
Gonorrhoea has now developed resistance to almost all antibiotics that have been used to treat it. In this study, we will investigate a new treatment approach that selects antibiotics on a patient-by-patient basis. We will use new molecular assays to first test if a gonorrhoea strain infecting a patient is susceptible to an antibiotic, and will then treat on the basis of this result. By doing so, we will optimize our use of antibiotics and improve treatment strategies for gonorrhea.
PH-dependent, Antibody-mediated Enhancement Of Genital Chlamydial Infection: Implications For Vaccine Design ?
Funder
National Health and Medical Research Council
Funding Amount
$373,228.00
Summary
Antibody found in cervicovaginal secretions is predominantly of the IgG subclass. In the acidic environment of the female reproductive tract IgG antibodies against surface antigens on Chlamydia may actually enhance rather than prevent infection, due to uptake of IgG-coated bacteria by the neonatal Fc receptor (FcRn), which is found on the surface of epithelial cells in the reproductive tract. The proposed studies will determine the effects of chlamydial antibodies on the course of infection.
Viral Load, HIV Treatment, And HIV Transmission In Serodiscordant Male Homosexual Couples
Funder
National Health and Medical Research Council
Funding Amount
$1,452,298.00
Summary
HIV treatment reduces the concentration of HIV in the body. In heterosexuals, current studies will determine the effectiveness of HIV treatment in preventing onwards HIV transmission. In contrast, there has been very little such research in homosexual men, who comprise 70% or more of people with HIV in Australia. This study will follow for four years over 200 male homosexual couples in which one is HIV positive and the other negative, to investigate the role of HIV treatment in HIV prevention.
The Second Australian Study Of Health And Relationships
Funder
National Health and Medical Research Council
Funding Amount
$1,637,477.00
Summary
The present proposal is for the Second Australian Study of Health and Relationships, a survey of 20,000 Australians aged 16–69, in 2011–12 in order to understand and document the changes in Australian sexual behaviour over the past decade. It is essential that policy and practice in the arena of sexual and reproductive health be evidence-based and that the evidence base be as current as is practicable.
Simultaneous Targeting Of Contraception And Sexually Transmitted Disease
Funder
National Health and Medical Research Council
Funding Amount
$681,380.00
Summary
This research will generate a completely novel topical contraceptive agent that becomes activated on contact with semen and will simultaneously protect the user against both unwanted fertility and sexually transmitted disease. A prototype compound has already been developed and patented. This research is aimed at the chemical optimization of this reagent, analysis of its mechanism-of-action and characterization of its anti-microbial activity against chlamydia, gonorrhoea, herpes simplex and HIV
Point-of-care Diagnosis Of Sexually Transmitted Infections To Improve Maternal And Neonatal Health Outcomes In Resource-limited, High-burden Settings
Funder
National Health and Medical Research Council
Funding Amount
$1,444,489.00
Summary
We will undertake the first effectiveness trial of novel, newly-available, easy to use, and highly accurate point-of-care tests for the diagnosis of curable sexually transmitted and genital infections (STIs) in pregnancy. The trial will establish whether point-of-care STI testing and treatment improves pregnancy outcomes compared to routine antenatal care in developing countries. The trial will also investigate the implementation requirements, costs and acceptability of this strategy.