Clinical trial Recruiting at 1 site Observational Ages 13 to 30 Women only

Understanding early symptoms of menstrual staphylococcal toxic shock

Official title: Identification of Prodromal Clinical Signs of Menstrual Staphylococcal Toxic Shock

Run by Hospices Civils de Lyon · NCT06124599 · Data updated 2026-11-12

This study is trying to find out the early warning signs of menstrual staphylococcal toxic shock syndrome in young women aged 13 to 30 to help with quicker diagnosis and understanding of this serious condition.

Quick facts

Study typeObservational
Ages13 Years to 30 Years
SexWomen only
Enrollment316 (estimated)
SponsorHospices Civils de Lyon
Academic / other
Locations1 site (Lyon)
StatusRecruiting
StartedDecember 21, 2021
Main results expectedDecember 21, 2026
Study endsDecember 21, 2026
Registry record updatedDecember 6, 2024
Trial IDNCT06124599 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are women aged 13 to 30 who have been clinically diagnosed with staphylococcal toxic shock syndrome.

Probably not a fit

Patients who do not meet the age criteria or have not been diagnosed with staphylococcal toxic shock syndrome will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to identify the prodromal symptoms of menstrual staphylococcal toxic shock syndrome in young women. It focuses on women aged 13 to 30 who have been diagnosed with this rare condition, as well as control patients. By analyzing symptoms reported during the last three menstrual periods, the study seeks to improve early diagnosis and understanding of this severe illness. The research is conducted at the Hopital Nord Croix Rousse in Lyon.

Why it matters

Potential benefit: If successful, this study could lead to earlier diagnosis and better management of menstrual staphylococcal toxic shock syndrome, potentially reducing morbidity and mortality.

How similar studies have gone: While menstrual staphylococcal toxic shock is rare, similar studies on prodromal symptoms in other conditions have shown promise in improving early diagnosis.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria :

+Case inclusion criteria:

* Women between 13 and 30 years old inclusive
* Clinical diagnosis of staphylococcal toxic shock syndrome: "confirmed" or "probable" according to Center Disease Control (CDC) criteria:

The 5 CDC clinical criteria for menstrual Staphylococcal Toxic Shock are:

* a fever above 39°C,
* arterial hypotension,
* generalized scarlatiniform erythroderma
* intense peeling of the palms or soles of the feet 7 to 14 days later,
* and systemic manifestations (at least three):

  * Digestive: vomiting, diarrhea
  * Muscular: myalgia, increase in serum creatine phosphokinase
  * Hyperemia of the vaginal, oropharyngeal and conjunctival mucous membranes
  * Renal: hyperuricemia, hypercreatininemia, leukocyturia without urinary infection,
  * Hepatic: increase in transaminases
  * Hematological: thrombocytopenia (\< 100,000 platelets/mm3)
  * Neurological: apart from episodes of fever or hypotension such as disorientation or altered consciousness.

In the presence of 4 criteria, the case is considered probable and 5 criteria as confirmed case.

* Detection of S. aureus strain carrying Toxic shock syndrome toxin-1 (TSST1) on vaginal samples.
* Onset of symptoms ≤ 72 hours before the start of menstruation and ≥ 72 hours after the end of menstruation.
* Use during the last 3 cycles of vaginal protection: tampon or menstrual cup.

  +Control inclusion criteria:
* Women between 13 and 30 years old inclusive
* Presence of menstruation
* Use of intimate periodic protection, tampon or menstrual cup, during the last 3 periods
* No history of toxic menstrual shock

Exclusion Criteria:

* Non-menstruating women
* Women protected by law
* Women (or relatives) who oppose the study

Where it's running

  • Hopital Nord Croix Rousse
    Lyon, France
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.