ClinicalTrials.gg
Status unknownNCT02570971Updated Oct 7, 2015

Mannitol Versus Supportive Care in Ciguatera Fish Poisoning

A Phase 3 interventional study of Mannitol in Ciguatoxin, sponsored by University of South Florida. Status unknown. Open to participants aged 18 Years to 100 Years. Per ClinicalTrials.gov, last updated 2015-10-07.

Sponsored by University of South Florida · Phase 3, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Oct 2015), so the status shown — last known as Not yet recruiting — may be out of date.
Phase
Phase 3
Study type
Interventional
Enrollment
200
Allocation
Randomized
Ages
18 Years to 100 Years
Sex
All
01

Study summary

Ciguatera poisoning, caused by the ingestion of ciguatoxin-containing fish, is a global public health concern. In the US, the vast majority of ciguatera poisonings occur in Florida, followed by Hawaii and California. Equipoise exists in the medical literature regarding the effectiveness of mannitol therapy in treatment of ciguatera poisoning. While there are many case reports attesting to its utility, the only randomized control trial (RCT) comparing mannitol therapy with supportive care failed to show any significant benefit from mannitol treatment for a variety of clinical outcomes. Investigators therefore propose a second, larger RCT to test this question.

02

Conditions studied

  • Ciguatoxin

Keywords

  • mannitol
  • treatment
03

In context

Lead sponsor

University of South Florida is the lead sponsor of 338 studies on the registry; 63 are open to participants now.

Of its 17 completed or terminated interventional studies of FDA-regulated products, 4 (24%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 100 Years
Sexes eligible
All
Accepts healthy volunteers
No

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

  • History consistent with ciguatera poisoning

Exclusion criteria

Exclusion Criteria:

  • Minors
  • pregnant patients
  • those unable to give consent
  • severe congestive heart failure or renal failure
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Single group
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
200 participants (estimated)

Study arms

  • No intervention
    Control

    Patients will receive supportive care measures.

  • Experimental
    Investigational

    Patients will receive 500mL of 20% mannitol

    Drug: Mannitol

Interventions

06

What researchers measure

Primary outcomes

  1. Symptom score

    Covers a variety of neurological and gastrointestinal symptoms on a 0-4 score

    Time frame: 24 hours

07

Study locations

No study locations are listed for this record.

08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 7, 2015, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02570971
Collaborators
Florida Poison Control Center
Responsible party
Sponsor
First posted
Oct 7, 2015
Start date
Oct 2015
Primary completion
Jun 2018 (estimated)
Last update
Oct 7, 2015

Study contacts

Michael Butterfield, MD MS MPH
Contact
mbutterfield@health.usf.edu
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Oct 2015. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Mannitol

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