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Clinical Trial Summary

The goal of this prospective cohort study is to determine if a model of care including point-of-care testing, immediate therapy, expedited partner therapy and test of cure will result in a higher cure rate and a lower recurrence rate of sexually transmitted infections (STIs), with a subsequent reduction in genital inflammatory cytokines and hence HIV risk among young women in a high burden setting in KwaZulu-Natal, South Africa. The study will identify individuals with STIs using the GeneXpert system for the simultaneous detection of Neisseria gonorrhoeae and Chlamydia trachomatis, and Trichomonas vaginalis. Genital tract cytokines will be measured using Bio-Plex Pro Human Cytokine kits and a Bio-Plex MagPix Array Reader. Following point-of-care diagnosis, participants will be treated immediately with appropriate therapy under direct supervision, offering the participants expedited partner therapy for their partners. STI testing and cytokine assessments will be repeated after 6 and 12 weeks, to determine if these have decreased. Overall, this study will provide some evidence on whether this STI care model can have an impact on STI prevalence and genital tract inflammation, in a low- and middle-income country, where currently syndromic STI management is the standard of care.


Clinical Trial Description

Sexually transmitted infections (STIs) are strongly associated with HIV risk. However, population based studies to manage STIs as a way of reducing HIV risk have had limited success. Recent studies show that elevated genital tract inflammatory cytokines are strongly associated with an increased risk of HIV acquisition, and STIs are one of the commonest causes of elevated genital tract cytokines. This interest in the role of cytokines in HIV acquisition has reinvigorated interest in STIs and whether better management strategies can have a role to play in HIV risk reduction.

HIV and STIs are extremely common in the South African province of KwaZulu-Natal, where there are many challenges with STI diagnosis and treatment, including the reliance on syndromic management, an approach based on the recognition of STI syndromes (vaginal discharge, urethral discharge and genital ulceration), followed by treatment targeting the common causes of the syndrome. This syndromic management approach has a low sensitivity and specificity for detecting the most common curable STIs, such as chlamydia, gonorrhoea, trichomoniasis and syphilis. Studies have shown that only 13% of symptomatic STI infections are cured with the STI treatment services currently offered in KwaZulu-Natal. This low cure rate for symptomatic STIs is compounded by the fact that up to 80% of STIs are asymptomatic, which results in a majority of STIs remaining undiagnosed and untreated. Other challenges with current STI management include limited partner notification and treatment, resulting in high levels of reinfection. At a population level, the result is that most STIs remain untreated and the burden of STIs within the community remains unchecked.

The goal of the study is to determine if an innovative, enhanced programme of STI management will result in a higher cure rate and a lower recurrence rate, with a subsequent reduction in genital inflammatory cytokines and hence HIV risk. This proof-of-concept cohort study will identify individuals with STIs using an innovative, point-of-care diagnostic test, an automated, cartridge-based nucleic amplification assay (GeneXpert) for the simultaneous detection of Neisseria gonorrhoeae and Chlamydia trachomatis, and Trichomonas vaginalis. This technology has been introduced on a large scale across South Africa to detect tuberculosis (TB) and TB drug resistance, thereby accelerating diagnosis, treatment and enhancing public health initiatives to control TB. Genital tract cytokines will be measured using Bio-Plex Pro Human Cytokine kits and a Bio-Plex MagPix Array Reader. Following point-of-care diagnosis, participants will be treated immediately with appropriate therapy under direct supervision, giving the participants the same treatment to take home for their sexual partners (expedited partner therapy) and asking them to return after six weeks and three months for a test of cure and additional cytokine assessments, to determine if these have decreased.

Overall, this innovative enhanced management package for targeted STI care, offers the best opportunity to reduce STIs, by ensuring that the individual is cured and by reducing the risk of reinfection using expedited partner therapy. This will allow the investigators to determine whether genital inflammation can be reduced after effective targeted STI treatment, and ultimately reduce the risk of HIV acquisition in South Africa. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03407586
Study type Interventional
Source Centre for the AIDS Programme of Research in South Africa
Contact
Status Completed
Phase N/A
Start date May 15, 2016
Completion date February 1, 2017

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