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Swiss Study on Spider Bites (SSSB)

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: May 18, 2011
Last Update Posted: October 7, 2013
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
University of Bern
Information provided by (Responsible Party):
University of Zurich
About spider bites in Middle Europe, there are published only a dozen cases. The investigators suspect that they may be much more frequent than reflected by the literature analysis (but much less dangerous than thought by people). From June 1st 2011 to November 30st 2012 the investigators collect clinical data on patients treated for spider bites in Switzerland.

Spider Bite

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Swiss Study on Spider Bites

Resource links provided by NLM:

Further study details as provided by University of Zurich:

Primary Outcome Measures:
  • Clinical follow up of bite lesions. [ Time Frame: 14 days (or more if necessary) ]
    Clinical evolutions of actual spider bite lesions in humans are observed.

Secondary Outcome Measures:
  • Time spread of spider bites [ Time Frame: 18 months ]
    Frequencies of spider bites over the study period of 18 months are observed.

  • Causative animals [ Time Frame: 18 months ]
    To determine spider species causing bites in Switzerland by sending spider specimens to an expert arachnologist.

Biospecimen Retention:   None Retained
Species of biting spider will be assessed if specimen is sent to us.

Enrollment: 17
Study Start Date: June 2011
Study Completion Date: December 2012
Primary Completion Date: November 2012 (Final data collection date for primary outcome measure)
Spider bite patients
All patients treated for an actual spider bite by a Swiss physician during study period.

Detailed Description:
Inclusion criteria: Every human treated for suspected spider bite in Switzerland willing to participate this study.

Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Every person with a suspected spider and treated by a Swiss Physician.

Inclusion Criteria:

  • adult or child treated for a suspected spider bite in Switzerland

Exclusion Criteria:

  • unwillingness to participate to the study
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01355744

Praxis Dr. med. Markus Gnaedinger
Steinach, SG, Switzerland, 9323
Sponsors and Collaborators
University of Zurich
University of Bern
Principal Investigator: Markus P. Gnädinger, MD Department of General Practice University Hospital Zurich
  More Information

Additional Information:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: University of Zurich
ClinicalTrials.gov Identifier: NCT01355744     History of Changes
Other Study ID Numbers: SSSB
First Submitted: May 17, 2011
First Posted: May 18, 2011
Last Update Posted: October 7, 2013
Last Verified: October 2013

Keywords provided by University of Zurich:
insect bites

Additional relevant MeSH terms:
Spider Bites
Bites and Stings
Chemically-Induced Disorders
Wounds and Injuries