Using blood RNA biomarkers to diagnose Long COVID

Utilizing Novel Blood RNA Biomarkers as a Diagnostic Tool in the Identification of Long COVID-19

Not applicable Interventional MaxWell Clinic, PLC · NCT06311435

This study is trying to see if certain blood tests can help identify and diagnose Long COVID in people who have it compared to healthy individuals and those with similar symptoms.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment224 (estimated)
Ages18 Years and up
SexAll
SponsorMaxWell Clinic, PLC Industry-sponsored
Locations3 sites (Iowa City, Iowa and 2 other locations)
Trial IDNCT06311435 on ClinicalTrials.gov

What this trial studies

This study aims to develop an algorithm for classifying specific blood RNA biomarkers in patients with Long COVID compared to healthy controls and other conditions with similar symptoms. Participants will provide two blood samples taken approximately 28 days apart, and their survey results will categorize them into one of fourteen Long COVID groups. The samples will be analyzed using an AI process to validate the type and severity of Long COVID. The ultimate goal is to create a reliable diagnostic test for Long COVID.

Who should consider this trial

Good fit: Ideal candidates are adults with a lab-verified diagnosis of SARS-CoV-2 and persistent symptoms related to the infection.

Not a fit: Patients whose ongoing medical complaints are determined to be unrelated to SARS-CoV-2 will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to a reliable diagnostic tool for identifying Long COVID and assessing its severity.

How similar studies have performed: While there have been studies exploring biomarkers for COVID-19, this specific approach using RNA biomarkers for Long COVID is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Mentally capable of understanding and completing informed consent for the study.
* Precipitants with a lab verified diagnosis of SARS-CoV-2 or clinician note/record that an appropriate rapid test for SARS-CoV-2 was positive.
* To qualify for long COVID group participants will need to have new, persistent symptoms related to SARS-CoV-2 infection. iv. No one under the age of 18.

Exclusion Criteria:

* Subject is unable to provide informed consent.
* Primary Investigator or Sub-Investigator determines the participant's ongoing medical complaints that began after 1 November 2019 are not related to SARS-COV-2 but another disease process.

Where this trial is running

Iowa City, Iowa and 2 other locations

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 Long COVIDCOVID-19Long Haul COVIDLong COVID-19Long Haul COVID-19
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.