Clinical trial Recruiting at 9 sites Observational

Registry for managing aneurysmal subarachnoid hemorrhage in Switzerland

Official title: Swiss Study on Subarachnoid Hemorrhage (Swiss-SOS)

Run by University Hospital, Geneva · NCT03245866 · Data updated 2026-11-12

This study is collecting information from patients in Switzerland who have had an aneurysmal subarachnoid hemorrhage to see how well they are treated and how they recover.

More Subarachnoid Hemorrhage trials

Quick facts

Study typeObservational
SexAll
Enrollment5000 (estimated)
SponsorUniversity Hospital, Geneva
Academic / other
Locations9 sites (Aarau, Canton of Aargau and 8 other locations)
StatusRecruiting
StartedJanuary 1, 2009
Main results expectedDecember 31, 2025
Study endsDecember 31, 2030
Registry record updatedMay 16, 2023
Trial IDNCT03245866 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this registry are patients admitted with a confirmed diagnosis of aneurysmal subarachnoid hemorrhage.

Probably not a fit

Patients with unidentified sources of hemorrhage or those with subarachnoid hemorrhage from causes other than cerebral aneurysms may not benefit from this registry.

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

What this trial studies

This registry collects clinical and management data from patients treated for aneurysmal subarachnoid hemorrhage (aSAH) across various hospitals in Switzerland. It aims to assess the current standard of care and patient outcomes, including neuropsychological assessments. By pooling data into a common database, the registry serves as a critical tool for healthcare providers to evaluate care quality and foster scientific collaboration on aSAH management. The initiative seeks to recruit all aSAH patients in Switzerland to provide a comprehensive assessment of incidence and treatment outcomes.

Why it matters

Potential benefit: If successful, this registry could enhance the quality of care for patients with aneurysmal subarachnoid hemorrhage by providing valuable insights into treatment outcomes and management practices.

How similar studies have gone: While this approach is observational and builds on existing data collection methods, it is novel in its comprehensive national scope for aSAH management in Switzerland.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion criteria:

\- Patients admitted with a proven diagnosis of aneurysmal subarachnoid hemorrhage.

Exclusion criteria:

\- Patients in whom the source of haemorrhage could not be identified (angiogram-negative SAH) or SAH with other causes than cerebral aneurysms.

Where it's running

  • Kantonsspital Aarau
    Aarau, Canton of Aargau, Switzerland
    Recruiting
  • Geneva University Hospital
    Geneva, Canton of Geneva, Switzerland
    Recruiting
  • Kantonsspital St. Gallen
    Sankt Gallen, Canton of St. Gallen, Switzerland
    Recruiting
  • University Hospital Basel
    Basel, Switzerland
    Recruiting
  • University Hospital Bern
    Bern, Switzerland
    Recruiting
  • University Hospital Lausanne
    Lausanne, Switzerland
    Recruiting
Show 3 more locations
  • Luzerner Kanton Spital
    Lucerne, Switzerland
    Recruiting
  • Ospedale Civico
    Lugano, Switzerland
    Recruiting
  • University Hospital Zürich
    Zurich, Switzerland
    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.