Establishing a reference range for IL-6 levels in healthy individuals

Symphony IL-6 Reference Range Study

Observational Bluejay Diagnostics, Inc. · NCT05048888

This study is trying to find out what normal IL-6 levels are in healthy people to help with diagnosing and managing illnesses like sepsis later on.

Quick facts

Study typeObservational
Enrollment120 (estimated)
Ages18 Years to 85 Years
SexAll
SponsorBluejay Diagnostics, Inc. Industry-sponsored
Locations1 site (Dallas, Texas)
Trial IDNCT05048888 on ClinicalTrials.gov

What this trial studies

This observational study aims to establish a reference range for IL-6 levels using the Symphony IL-6 device, which quantifies IL-6 from whole blood without the need for plasma separation. Participants will provide whole blood specimens, which will be analyzed using the Symphony Fluorescence Immunoanalyzer and IL-6 Cartridge. The study focuses on healthy individuals to determine baseline IL-6 concentrations, which could aid in the diagnosis and management of conditions like sepsis in the future.

Who should consider this trial

Good fit: Ideal candidates for this study are healthy individuals over 18 years of age who can provide informed consent.

Not a fit: Patients presenting with fever or diagnosed with COVID-19 or other respiratory illnesses may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a reliable reference range for IL-6 levels, improving the diagnosis and treatment of sepsis.

How similar studies have performed: While the approach of using point-of-care devices for biomarker quantification is gaining traction, establishing a reference range for IL-6 specifically with this device is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Subject is willing and able to provide informed consent
* \> 18 years of age
* Whole blood specimen collected in EDTA anticoagulant tubes
* Minimum volume of 100µL for Symphony IL-6 testing
* Specimen is available for testing within 12 hours from collection
* C-Reactive Protein (CRP) \< 10 mg/L

Exclusion Criteria:

* Subjects presenting with a fever
* Subjects with a diagnosis of COVID-19 or other respiratory illness at the time of collection
* Subjects otherwise self-reported as unhealthy
* Hemolyzed specimens

Where this trial is running

Dallas, Texas

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Sepsis
Last reviewed 2026-06-13 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.