Recruiting

Cyanobacteria & Red Tide

Sponsor:

University of Central Florida

Code:

NCT07091058

Conditions

Red Tide

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Accepted

Study Details

Brief summary:

The purpose of this study is to compare the frequency of symptoms, exposure and health impacts in persons living in areas where they are exposed to bloom and non-bloom periods of cyanobacteria and red tide in Florida.

Conditions

Red Tide

Study ID

NCT07091058

Start date

Nov 13, 2024

Status verified date

Jul, 2025

Completion date

Jun 30, 2026

Anticipated

Primary completion date

Jun 30, 2026

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Accepted

Inclusion Criteria:

  • 18 years or older
  • live, visit, and/ or work in the following Florida counties: Indian River, St. Lucie, Charlotte, Collier, Hendry, Hillsborough, Lee, Manatee, Martin, Monroe, Okeechobee, Palm Beach, Pasco, Pinellas, Indian River, and/or Sarasota
  • able to read and understand English

Exclusion Criteria:

  • unable to independently consent
  • younger than 18 years old
  • prisoner
  • pregnant women

Study Design

Enrollment

400 participants

Anticipated

Interventions and Outcome Measures

Arms

Questionnaire A

Participants will be assigned to complete Questionnaire A based on if they are new or returning participants and on the status of bloom at consent.

Questionnaire B

Participants will be assigned to complete Questionnaire B based on if they are new or returning participants and on the status of bloom at consent.

Primary outcome measure

  • To correlate self- reported symptom occurrence with recreational/occupational cyanotoxin exposure (measured in air and water environmental samples) and cyanotoxin levels in blood, nasal swab [ Time Frame: 2 years ]

Central Contacts and Locations

Central contacts

Amoy Fraser, PhD, CCRP, PMP

14072668742Amoy.Fraser@ucf.edu

Britney-Ann Wray, BS, CTBS, CCRP

4072668742britney-ann.wray@ucf.edu

Locations

University of Central Florida

Recruiting

Multiple Locations, Florida, United States, 00000

Contacts

Amoy Fraser, PhD, CCRP, PMP

4072668742Amoy.Fraser@ucf.edu

Britney-Ann, BS, CTBS, CCRP

4072668742britney-ann.wray@ucf.edu

More Information

Sponsor

University of Central Florida

Last update posted

Jul 29, 2025

Last verified

Jul, 2025

Keywords

  • algae
  • Cyanobacteria
  • red tide
  • cyanotoxin
  • Harmful Algal Blooms (HABs)
  • microcystins
  • brevetoxin

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by University of Central Florida on 2025-07-29.