Evaluation of Multisite Sampling to Detect C. Trachomatis or N. Gonorrheae Compared With Vaginal Sampling in Women at Risk for Sexually Transmitted Infections (SIST'RS)

Centre Hospitalier Régional d'Orléans

Status: Completed

Conditions: Sexually Transmitted Infection

Treatments: Diagnostic Test: Vaginal, Oral and anal sampling

Study type: Interventional

Funder types: Other

Identifiers

NCT05872438

CHRO-2022-16

Details and patient eligibility

About

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.

Full description

1500 women will be included in 5 different screening STIs centers in France based of the prevalence of STIs in this population (10% C. trachomatis) and the hypothesis that this new strategy allows to detect 20% more underdiagnosed STIs The sequential recruitment will concern women attending at one of the 5 STIs screening centers, whether they are symptomatic or not. If they agree to participate in the study, the patients will take the samples themselves from the 3 sites (vaginal, anal and oral self-sampling) using standard swabs (brand). The sample will immediately be placed in the transport medium in each of the 3 Sigma VCM tubes labeled by the patient, depending on the collection site. The study nurse will register the inclusion of patients, identify the tubes, collect information and send them to the local laboratory for the PCR to be performed. The study will be continued until the number of patients to be included for each of the centers is obtained. The anonymized data will be entered on an Excel database. The results of the PCRs will be collected a posteriori by the IDEs to populate the database. The PCR result will be given both qualitatively (positive/negative) and CT value for C. trachomatis and N. gonorrhoeae infections.

Enrollment: 1,500 patients

Sex: Female

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Women coming for STI screening at a Cegidd
• Asymptomatic or not
• Women aged at least 18 years
• Having given her consent to participate

Exclusion criteria

• Patient having received antibiotic treatment covering C.trachomatis and N.gonorrheae in the month preceding the screening
• Patient under guardianship or curatorship
• Patient under legal protection
• Pregnant or breastfeeding woman

Trial design

Primary purpose: Diagnostic

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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1,500 participants in 1 patient group

Multisite sampling

Other group

Description:

Vaginal, Oral and anal sampling for all participants

Treatment:

Diagnostic Test: Vaginal, Oral and anal sampling