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Dietary Iron Requirements

StatusRecruiting
PhaseNot applicable
Started
View on ClinicalTrials.gov ↗

Record History

  1. Phase changed: not specified → not applicable
    • Interventions: Stable iron isotope (Other)
    v4
  2. Trial status: Not Yet Recruiting to Recruiting
    • Start date changed from estimate of Jan 1, 2026 to Feb 6, 2026
    • Site details revised at 2 of 2 sites
    v3
  3. Start date: Sep 1, 2025 to Jan 1, 2026v2
  4. Study First Submitted
  • Stopped: an ongoing trial was terminated, suspended or withdrawn.
  • Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
  • Minor: routine progress and housekeeping, such as sites added or enrollment closed.
Dietary Reference Intakes (DRIs) for iron are based on a relatively small number of studies in European populations. This research study will determine iron needs in a representative sample of adults living in the US using the iron isotope dilution technique. Following administration and equilibration of a stable iron isotope, participants will be followed for a 12 week study period. Blood will be collected every 4 weeks and the isotopic composition will be determined. Results will help update dietary iron guidelines making sure they better match the specific needs of the US population.
Trial Details
NCT Number NCT07139821
Lead Sponsor Pennington Biomedical Research Center
Collaborators: Cornell University
Conditions
(from sponsor)		 Iron Absorption
Related terms Anemia, Iron-Deficiency, Iron Deficiencies
Enrollment 300 participants
Start Date
Primary Completion (estimated)
Study Completion (estimated)
Updated on ClinicalTrials.gov