Neuroimaging of Donor Iron Deficient Study

Iron Deficiency Clinical Trial

Official title:

Neuroimaging of Donor Iron Deficient Study (DIDS)

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT02990559
• Other study ID #: AAAR0145
• Status: Completed
• Start date: January 2017
• Est. completion date: October 4, 2021

Study information

• Verified date: June 2024
• Source: Columbia University
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

This pilot study is designed to investigate (1) whether getting iron treatment affects iron in the brain and (2) how getting iron treatment affects brain functions when it is performing specific cognitive tasks. By cognitive tasks, it means tasks that involve perceiving, representing, or assessing things. The specific cognitive tasks used here will involve tests of memory and processing speed.

Description:

Iron, the most abundant metal in the brain, is vital for multiple cellular processes, including neurotransmitter synthesis, neuron myelination, and mitochondrial function. In the United States, of the donors who provided the ~15 million units of red blood cells that were collected for transfusion, 69% were repeat donors. Although iron deficiency is surprisingly prevalent in first-time donors, its prevalence is even higher in these particularly altruistic frequent donors, (i.e., up to 49% and 66% of male and female repeat donors, respectively), manifested as iron depletion or iron-deficient erythropoiesis. Iron deficiency from blood donation is associated with fatigue, restless leg syndrome, decreased physical endurance and work capacity, and impaired concentration, attention, and other neurocognitive functions; however, these conclusions are not based on definitive studies and have not yet changed blood donation policy. This study is to collect data through noninvasive procedures routinely employed in clinical practice to better understand how iron treatment may affect brain functions.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 75
• Est. completion date: October 4, 2021
• Est. primary completion date: October 4, 2021
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 75 Years

Eligibility

Inclusion Criteria:

• Current participant of the associated randomized controlled trial conducted at Columbia University Medical Center (therefore invited to participate in this optional ancillary study).

Exclusion Criteria:

• Not a current participant of the associated randomized controlled trial conducted at Columbia University Medical Center.

Related Conditions & MeSH terms

• Iron Deficiency

Locations

Country	Name	City	State
United States	Columbia University Irving Medical Center	New York	New York

Sponsors (1)

Lead Sponsor	Collaborator
Columbia University

Country where clinical trial is conducted

United States, 

References & Publications (6)

Bialkowski W, Bryant BJ, Schlumpf KS, Wright DJ, Birch R, Kiss JE, D'Andrea P, Cable RG, Spencer BR, Vij V, Mast AE. The strategies to reduce iron deficiency in blood donors randomized trial: design, enrolment and early retention. Vox Sang. 2015 Feb;108(2):178-85. doi: 10.1111/vox.12210. Epub 2014 Dec 3. — View Citation

Brittenham GM. Iron deficiency in whole blood donors. Transfusion. 2011 Mar;51(3):458-61. doi: 10.1111/j.1537-2995.2011.03062.x. No abstract available. — View Citation

Cable RG, Glynn SA, Kiss JE, Mast AE, Steele WR, Murphy EL, Wright DJ, Sacher RA, Gottschall JL, Tobler LH, Simon TL; NHLBI Retrovirus Epidemiology Donor Study-II (REDS-II). Iron deficiency in blood donors: the REDS-II Donor Iron Status Evaluation (RISE) study. Transfusion. 2012 Apr;52(4):702-11. doi: 10.1111/j.1537-2995.2011.03401.x. Epub 2011 Oct 24. — View Citation

Hare D, Ayton S, Bush A, Lei P. A delicate balance: Iron metabolism and diseases of the brain. Front Aging Neurosci. 2013 Jul 18;5:34. doi: 10.3389/fnagi.2013.00034. eCollection 2013. — View Citation

Newman B. Iron depletion by whole-blood donation harms menstruating females: the current whole-blood-collection paradigm needs to be changed. Transfusion. 2006 Oct;46(10):1667-81. doi: 10.1111/j.1537-2995.2006.00969.x. No abstract available. — View Citation

Smith GA, Fisher SA, Doree C, Roberts DJ. A systematic review of factors associated with the deferral of donors failing to meet low haemoglobin thresholds. Transfus Med. 2013 Oct;23(5):309-20. doi: 10.1111/tme.12046. Epub 2013 Jul 5. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Change in mean iron content in specific brain nuclei	To assess the iron deposition/accumulation in subjects' brain region by using neuroimaging such as MRI/fMRI.	Up to 5 months
Primary	Cognition Fluid Composite Score	NIH Toolbox derived uncorrected standard composite score, measured at 4 time points (twice pre-randomization and twice post-randomization). The uncorrected standard score will be used, where the normative mean is 100 with a standard deviation of 15.	Up to 5 months
Secondary	Activity and connectivity in specific functional networks at resting state	Resting state blood oxygen level dependent (BOLD) signals will be assessed by fMRI. Independent component analysis will be used to detect alterations in connectivity in functional networks (e.g., default mode network and visual, sensory/motor, executive control, temporal/parietal, basal ganglia components) in a paired analysis comparing subjects before and after iron repletion versus placebo.	Up to 5 months
Secondary	Brain activity during tasks of processing speed and episodic memory	Brain activity patterns during performance of processing speed and episodic memory tasks will be assessed by fMRI and comparisons made from before to after iron repletion versus placebo.	Up to 5 months
Secondary	NIH Toolbox Auditory Verbal Learning Test (Rey) Score	NIH Toolbox derived uncorrected standard Auditory Verbal Learning test score, measured at 4 time points (twice pre-randomization and twice post-randomization). Delayed and initial scores analyzed separately. The raw score will be used in which a higher number represents more words remembered.	Up to 5 months
Secondary	NIH Toolbox Flanker Inhibitory Control and Attention Test Score	NIH Toolbox derived uncorrected standard Flanker Inhibitory Control and Attention test score (single score), measured at 4 time points (twice pre-randomization and twice post-randomization). The uncorrected standard score will be used, where the normative mean is 100 with a standard deviation of 15.	Up to 5 months
Secondary	NIH Toolbox List Sorting Working Memory Test Score	NIH Toolbox derived uncorrected standard List Sorting Working Memory test score, measured at 4 time points (twice pre-randomization and twice post-randomization). The uncorrected standard score will be used, where the normative mean is 100 with a standard deviation of 15.	Up to 5 months
Secondary	NIH Toolbox Dimensional Change Card Sort Test	NIH Toolbox derived uncorrected standard Dimensional Change Card Sort test score, measured at 4 time points (twice pre-randomization and twice post-randomization). The uncorrected standard score will be used, where the normative mean is 100 with a standard deviation of 15.	Up to 5 months
Secondary	NIH Toolbox Pattern Comparison Processing Speed Test Score	NIH Toolbox derived uncorrected standard Pattern Comparison Processing Speed test score, measured at 4 time points (twice pre-randomization and twice post-randomization). The uncorrected standard score will be used, where the normative mean is 100 with a standard deviation of 15.	Up to 5 months
Secondary	NIH Toolbox Picture Sequence Memory Test	NIH Toolbox derived uncorrected standard Picture Sequence Memory test score, measured at 4 time points (twice pre-randomization and twice post-randomization). The uncorrected standard score will be used, where the normative mean is 100 with a standard deviation of 15.	Up to 5 months