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CompletedNCT03658902BotuREAUpdated Jul 1, 2026

Retrospective Epidemiological Study on Botulism in Intensive Care Units in France

An observational study in Botulism; Poisoning, sponsored by Centre Hospitalier le Mans. Completed at 1 site in France. Open to participants aged 15 Years and older. Per ClinicalTrials.gov, last updated 2026-07-01.

Sponsored by Centre Hospitalier le Mans · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
52
Ages
15 Years and older
Sex
All
01

Study summary

Botulism poisoning is a rare but serious illness. Because of it's low incidence, it is not well known by physicians. Most studies describing botulism date back to the last century and do not take into account recent advances in intensive care.

The objective of this study is to describe the clinical course, interventions and outcomes of patients with severe botulism poisoning requiring a hospitalisation in an intensive care or high dependancy unit.

02

Conditions studied

  • Botulism; Poisoning

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Keywords

  • Botulism
  • Intensive Care
03

In context

Botulism

20 studies on the registry are indexed under Botulism; 3 are open to participants now.

Browse Botulism studies →

Lead sponsor

Centre Hospitalier le Mans is the lead sponsor of 44 studies on the registry; 18 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
15 Years and older
Sexes eligible
All
Sampling method
Non-probability sample

Study population

All patients 15 years of age or older with a clinical diagnosis of botulism.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Clinical diagnosis of botulism
  • Admission in an intensive care or high dependancy unit

Exclusion criteria

Exclusion Criteria:

  • None
05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
52 participants (actual)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. Survival

    Proportion of patients alive at ICU discharge

    Time frame: 2000 to 2017

Secondary outcomes

  1. Age

    Mean age of recruited patients

    Time frame: 2000 to 2017

  2. Weight

    Mean weight of recruited patients

    Time frame: 2000 to 2017

  3. Height

    Mean Height of recruited patients

    Time frame: 2000 to 2017

  4. History of motor impairment measured by the modified Rankin scale

    History of neurological disorder with motor impairment before the poisoning, measured by the Modified Rankin Scale (0 to 6, 0 being no symptoms and 6 being deceased).

    Time frame: 2000 to 2017

  5. History of heart failure measured by the NYHA (New York Health Association) score

    History of heart failure before the poisoning, measured by the NYHA (New York health Association) dyspnoea score (1 to 4, 1 being no symptoms and no limitation in daily physical activity, 4 being severe symptoms even at rest).

    Time frame: 2000 to 2017

  6. History of chronic respiratory failure: use of daily oxygen therapy AND/OR non invasive ventilation

    Chronic respiratory failure defined by the use of chronic oxygen therapy AND/OR daily non invasive ventilation.

    Time frame: 2000 to 2017

  7. History of chronic kidney disease measured by the glomerular filtration rate.

    History of chronic kidney disease before the poisoning, defined as a glomerular filtration rate \< 60 mL/min/1.73m for more than 3 months OR chronic dialysis.

    Time frame: 2000 to 2017

  8. History of cirrhosis as measured by the CHILD-PUGH score.

    Presence or absence of Cirrhosis, as measured by the CHILD-PUGH score (class A, B or C, A predicting a one year survival probability of 100%, C predicting a one year survival probability of 45%).

    Time frame: 2000 to 2017

  9. Source of the contamination

    Suspected origin of the toxin: food poisoning, dermal wound, intravenous drug use, intestinal colonisation by Clostridium sp. or unknown.

    Time frame: 2000 to 2017

  10. Isolated or multiple cases

    Whether the poisoning is isolated or one of multiple cases originating from the same source.

    Time frame: 2000 to 2017

  11. Botulinum Toxin type if identified

    Botulinum toxin type if identified (A,B,C,D,E,F,G or H type toxin).

    Time frame: 2000 to 2017

  12. Severity at ICU admission

    Simplified acute physiology score 2 (SAPS 2) at admission in the ICU: from 0 to 163, with 0 predicting a mortality risk of 0% and 163 of 100%.

    Time frame: 2000 to 2017

  13. Mechanical ventilation requirement

    Whether the patient required or not mechanical ventilation during his ICU stay

    Time frame: 2000 to 2017

  14. Invasive mechanical ventilation requirement

    Whether the patient required or not invasive mechanical ventilation during his ICU stay

    Time frame: 2000 to 2017

  15. Non invasive mechanical ventilation requirement

    Whether the patient required or not non invasive mechanical ventilation during his ICU stay

    Time frame: 2000 to 2017

  16. Whether or not the patient required a tracheotomy during his ICU stay.

    Whether the patient required a tracheotomy during his ICU stay

    Time frame: 2000 to 2017

  17. Enteral or parenteral nutritional support

    Whether the patient required or not enteral or parenteral nutritional support during his ICU stay

    Time frame: 2000 to 2017

  18. Number of days of vasopressor support

    Number of days the patient required vasopressor support during his ICU stay

    Time frame: 2000 to 2017

  19. Acute kidney injury measured by maximum serum creatinine during ICU stay.

    Whether the patient developped an acute kidney injury during his ICU stay: measured by maximum serum creatinine during ICU stay in µmol/L.

    Time frame: 2000 to 2017

  20. Severe liver failure

    Whether the patient developped an acute severe liver failure during his ICU stay, defined as a prothrombin time less than 50% due to liver failure.

    Time frame: 2000 to 2017

  21. Whether or not antitoxin was administered to the patient.

    Whether botulinum antitoxin was administered.

    Time frame: 2000 to 2017

  22. Whether or not guanidine was administered during ICU stay

    Whether guanidine was administered as a treatment for the botulinum poisoning.

    Time frame: 2000 to 2017

  23. Length of stay.

    Number of hospitalisation days in the ICU.

    Time frame: 2000 to 2017

  24. Healthcare acquired infection

    Whether the patient acquired a healthcare related infection during his stay in the ICU.

    Time frame: 2000 to 2017

  25. Mechanical ventilation related complications.

    Whether the patient had any mechanical ventilation related complications during his stay in the ICU.

    Time frame: 2000 to 2017

  26. Bedrest complications: bedsores

    Whether the patient acquired bedsores during his ICU stay.

    Time frame: 2000 to 2017

  27. Bedrest complications: thrombo-embolic complications

    Whether the patient acquired thrombo-embolic complications (deep vein thrombosis or pulmonary embolism) during his ICU stay.

    Time frame: 2000 to 2017

  28. Disability at ICU discharge

    Modified Rankin scale at ICU discharge, from 0 to 6, with 0 being asymptomatic and 6 being death.

    Time frame: 2000 to 2017

  29. Disability at hospital discharge

    Modified Rankin scale at hospital discharge, from 0 to 6, with 0 being asymptomatic and 6 being death.

    Time frame: 2000 to 2017

  30. Last known disability

    Last known modified Rankin scale, from 0 to 6, with 0 being asymptomatic and 6 being death.

    Time frame: 2000 to 2017

  31. Survival at hospital discharge

    Proportion of patients alive at hospital discharge

    Time frame: 2000 to 2017

07

Study locations

1 site
  • Centre Hospitalier Le Mans
    Le Mans, 72000, France
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 1, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT03658902
Lead sponsor
Centre Hospitalier le Mans
Responsible party
Sponsor
First posted
Sep 6, 2018
Start date
Jan 1, 2000
Primary completion
Dec 31, 2017
Completion
Aug 15, 2018
Last update
Jul 1, 2026

Study contacts

Christophe Guitton, MD
principal investigator · Centre Hospitalier le Mans

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Sep 2018. You cannot join it, but the record below documents what was studied.

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