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Assess the Performance of Metagenomic Sequencing in the Diagnosis of STI (NGS-IST) — NGS-IST  

Chlamydia Trachomatis Infection Clinical Trial

Official title:
Assess the Performance of Metagenomic Sequencing in the Diagnosis of STI (NGS-IST)

Clinical Trial Summary

The main objective of the study will be to assess the performance of the Next-Generation-Sequencing (NGS) diagnostics of Chlamydia trachomatis and Neisseria gonorrhoeae compared to reference techniques.

Clinical Trial Description

Sexually Transmitted Infections (STIs) have become a major global public health problem and are among the most common infections. The increase antibiotic resistance, particularly in Neisseria gonorrhoeae and Mycoplasma genitalium, is of concern. Currently, the diagnosis of STIs is based on specific tests by pathogen, mainly by standard culture allowing an antibiotic susceptibility testing, gene amplification tests possibly allowing the search for resistance genes and serologies. Next-Generation-Sequencing (NGS) is based on the detection and analysis of any DNA and RNA present in the studied sample with a high degree of sensitivity, this method enables the precise identification of non-human sequences regardless its bacterial, viral or parasitologic origin, to detect resistance genes and to characterize the strains. The investigators propose to assess the performance of NGS for the diagnosis of STIs. A cohort of 332 PrEP users from Saint-Antoine and Tenon Hospitals will be followed for this purpose every 3 months during 1 year (including also the intermediate visits if needed in case of STIs symptoms). The main objective of the study will be to assess the performance of the NGS diagnostics of Chlamydia trachomatis and Neisseria gonorrhoeae compared to reference techniques. The secondary objectives will be (i) to evaluate the performance of the diagnosis by NGS of the other STIs compared to the reference techniques, (ii) to evaluate the interest and the sensitivity of a 3 sites pooled sample "urine, throat and rectum" and the swab sampling from the ulcer lesions in the case of the ulcerations presence for the diagnosis of STIs, (iii) to describe the natural history of colonization with Mycoplasma genitalium and the appearance of resistance or pressure of antibiotic selection and (iv) to evaluate the prevalence of agents not usually sought in screening for STI (HSV-1, HSV-2, Haemophilus ducreyi, Campylobacter sp, Shigella sp, Clostridioides difficile, Entamoeba histolytica). Improved diagnosis of STIs and resistance will allow a better patient management. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT05581160
Study type Interventional
Source Institut de Médecine et d'Epidémiologie Appliquée - Fondation Internationale Léon M'Ba
Contact Laure Surgers, MD
Phone +33 1 71 97 01 19
Email laure.surgers@aphp.fr
Status Recruiting
Phase N/A
Start date July 11, 2022
Completion date June 30, 2025
View Details
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