Clinical trial Recruiting at 8 sites Observational Ages 18 and up

Understanding the Natural History of Sickle Cell Trait

Official title: Achieving Understanding of the Natural History of Sickle Cell Trait (AUNT)

Run by National Alliance for Sickle Cell Centers · NCT06071377 · Data updated 2026-11-12

This study is trying to learn more about Sickle Cell Trait by following people with it for two years to see how it affects their blood and if it leads to any health issues.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment1000 (estimated)
SponsorNational Alliance for Sickle Cell Centers
Academic / other
Locations8 sites (Birmingham, Alabama and 7 other locations)
StatusRecruiting
StartedApril 1, 2023
Main results expectedDecember 2026
Study endsFebruary 2027
Registry record updatedOctober 7, 2026
Trial IDNCT06071377 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults aged 18-65 who know or suspect they have Sickle Cell Trait and are willing to participate in the study.

Probably not a fit

Patients with known end-stage renal disease, sickle cell disease, or those who do not have Sickle Cell Trait will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to create a longitudinal cohort of individuals with Sickle Cell Trait (SCT) to better understand the hematologic characteristics associated with carrying HbS. It will assess variations in HbS levels and explore potential clinical complications related to SCT. Participants will provide biological specimens and undergo testing to confirm their SCT status over a two-year period. The study seeks to gather comprehensive data to enhance knowledge about SCT.

Why it matters

Potential benefit: If successful, this study could provide valuable insights into the health implications of Sickle Cell Trait, potentially leading to improved management and care for affected individuals.

How similar studies have gone: While this study focuses on a specific aspect of Sickle Cell Trait, similar observational studies have provided valuable insights into related conditions, suggesting potential for meaningful findings.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Are willing to voluntarily participate and sign the study consent
2. Know/suspect they have SCT and are willing to get tested to confirm/learn about their SCT status
3. Adults ages 18 and older

Exclusion Criteria:

1. Unwilling to sign consent
2. Known end-stage renal disease or dialysis
3. Known SCD (including sickle cell-beta thalassemia)
4. People who do not have SCT

Where it's running

  • University of Alabama
    Birmingham, Alabama, United States
    Recruiting
  • Nemours Children's Hospital
    Wilmington, Delaware, United States
    Recruiting
  • Indiana University
    Indianapolis, Indiana, United States
    Recruiting
  • Functional Fluidics
    Detroit, Michigan, United States
    Recruiting
  • University of North Carolina
    Chapel Hill, North Carolina, United States
    Recruiting
  • Duke University
    Durham, North Carolina, United States
    Recruiting
Show 2 more locations
  • East Carolina University
    Greenville, North Carolina, United States
    Recruiting
  • UT Health Houston
    Houston, Texas, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • Bone health, muscle strength, and frailty in postmenopausal women of African descent with sickle cell trait

    We will see if postmenopausal women of African descent who have sickle cell trait are more likely to have thinner bones, weaker muscles, or greater frailty than women without the trait.

    Recruiting UConn Health · Farmington, Connecticut · NCT07083531

  • Sickle Cell Kidney Sample Bank

    This project will collect blood and urine from adults with sickle cell disease or sickle cell trait to see if linked samples and medical records can help researchers learn how kidney disease starts and progresses.

    Recruiting at 2 sites University of Texas Southwestern Medical Center · Dallas, Texas and 1 other locations · NCT07064174

  • Collecting blood samples to study sickle cell disease

    This study is collecting blood samples from healthy people and those with sickle cell disease to see if new drugs can help stop red blood cells from sickling.

    Recruiting National Institutes of Health Clinical Center (CC) · Bethesda, Maryland · NCT00542230

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
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Last reviewed 2026-11-14 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.