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Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT02831712
Other study ID # 13-093
Secondary ID
Status Active, not recruiting
Phase N/A
First received July 11, 2016
Last updated July 15, 2016
Start date April 2013
Est. completion date December 2016

Study information

Verified date July 2016
Source National University, Singapore
Contact n/a
Is FDA regulated No
Health authority Singapore: Institutional Review Board
Study type Interventional

Clinical Trial Summary

This study aims to investigate a possible effect of iron status on temporary build-up of non-transferrin bound iron (NTBI) in healthy volunteers upon iron supplementation.


Description:

For Visit 1, blood samples will be collected to assess iron status. For Visit 2, after an overnight fast, iron supplement will be provided to participant before breakfast. Blood samples will be collected right before and 2 h after iron supplement consumption for NTBI analysis.

NTBI concentration before and after iron supplement consumption will be compared. Dependence of NTBI formation on markers of iron status (serum iron, transferrin, transferrin saturation, serum ferritin and hemoglobin) will be evaluated.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 50
Est. completion date December 2016
Est. primary completion date December 2016
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Both
Age group 21 Years to 55 Years
Eligibility Inclusion Criteria:

- Apparently healthy volunteers (21 - 55 years old)

- C-reactive protein (CRP) < 5

Exclusion Criteria:

- Blood donation or significant blood loss (e.g. surgery) within the past 4 months

- Regular intake of iron and other nutrient supplements within the past 4 months

- Regular intake of medication except oral contraceptives

- Acute or recent inflammatory or infectious symptoms

- Chronic gastrointestinal disorders or metabolic diseases

- Pregnancy or lactation

- Coeliac disease or gluten-related disorders

- Iron overload conditions (serum ferritin concentration > 200 ng/mL for females, > 300 ng/mL for males)

- Non iron deficiency anemia [serum ferritin concentration within normal range (15-200 ng/mL for females, 30-300 ng/mL for males) but low hemoglobin (< 12 g/dL for females, < 14 g/dL for males)]

Study Design

Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Screening


Related Conditions & MeSH terms

  • Effect of Iron Status on Occurrence of NTBI

Intervention

Dietary Supplement:
Ferrous Fumarate
One tablet of a commercial iron supplement (Ferrous Fumarate 200 mg, from Drug House of Australia) will be provided to participants after overnight fast. The intervention is only one time.

Locations

Country Name City State
Singapore National University of Singapore; National University Hospital Singapore

Sponsors (1)

Lead Sponsor Collaborator
Thomas Walczyk

Country where clinical trial is conducted

Singapore, 

References & Publications (12)

Baron J, Ben-David G, Hallak M. Changes in non-transferrin-bound iron (NTBI) in pregnant women on iron supplements. Eur J Obstet Gynecol Reprod Biol. 2008 Oct;140(2):281-2. doi: 10.1016/j.ejogrb.2008.01.002. Epub 2008 Mar 4. — View Citation

Duca L, Da Ponte A, Cozzi M, Carbone A, Pomati M, Nava I, Cappellini MD, Fiorelli G. Changes in erythropoiesis, iron metabolism and oxidative stress after half-marathon. Intern Emerg Med. 2006;1(1):30-4. — View Citation

Hutchinson C, Al-Ashgar W, Liu DY, Hider RC, Powell JJ, Geissler CA. Oral ferrous sulphate leads to a marked increase in pro-oxidant nontransferrin-bound iron. Eur J Clin Invest. 2004 Nov;34(11):782-4. — View Citation

Inati A, Musallam KM, Cappellini MD, Duca L, Taher AT. Nontransferrin-bound iron in transfused patients with sickle cell disease. Int J Lab Hematol. 2011 Apr;33(2):133-7. doi: 10.1111/j.1751-553X.2010.01224.x. — View Citation

Malyszko J, Glowinska I, Malyszko JS, Levin-Iaina N, Koc-Zorawska E, Mysliwiec M. Iron metabolism in kidney allograft recipients: still a mystery? Transplant Proc. 2011 Oct;43(8):2973-5. doi: 10.1016/j.transproceed.2011.08.055. — View Citation

Monsen ER, Hallberg L, Layrisse M, Hegsted DM, Cook JD, Mertz W, Finch CA. Estimation of available dietary iron. Am J Clin Nutr. 1978 Jan;31(1):134-41. — View Citation

Ounjaijean S, Westermarck T, Partinen M, Plonka-Poltorak E, Kaipainen P, Kaski M, Fucharoen S, Srichairatanakool S, Atroshi F. Increase in non-transferrin bound iron and the oxidative stress status in epilepsy patients treated using valproic acid monotherapy. Int J Clin Pharmacol Ther. 2011 Apr;49(4):268-76. doi: 10.5414/CP201466. — View Citation

Papanikolaou G, Pantopoulos K. Iron metabolism and toxicity. Toxicol Appl Pharmacol. 2005 Jan 15;202(2):199-211. Review. — View Citation

Prakash M, Upadhya S, Prabhu R. Serum non-transferrin bound iron in hemodialysis patients not receiving intravenous iron. Clin Chim Acta. 2005 Oct;360(1-2):194-8. — View Citation

Schümann K, Kroll S, Romero-Abal ME, Georgiou NA, Marx JJ, Weiss G, Solomons NW. Impact of oral iron challenges on circulating non-transferrin-bound iron in healthy Guatemalan males. Ann Nutr Metab. 2012;60(2):98-107. doi: 10.1159/000336177. Epub 2012 Mar 6. — View Citation

Trumbo P, Yates AA, Schlicker S, Poos M. Dietary reference intakes: vitamin A, vitamin K, arsenic, boron, chromium, copper, iodine, iron, manganese, molybdenum, nickel, silicon, vanadium, and zinc. J Am Diet Assoc. 2001 Mar;101(3):294-301. — View Citation

Yegin ZA, Pasaoglu H, Aki SZ, Özkurt ZN, Demirtas C, Yagci M, Acar K, Sucak GT. Pro-oxidative/antioxidative imbalance: a key indicator of adverse outcome in hematopoietic stem cell transplantation. Int J Lab Hematol. 2011 Aug;33(4):414-23. doi: 10.1111/j.1751-553X.2011.01297.x. Epub 2011 Feb 10. — View Citation

* Note: There are 12 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary Concentration of NTBI after an oral iron load Blood samples collected 2 h after the iron supplement consumption will be measured for NTBI concentration 2 hour post dose No
Secondary Dependence of NTBI concentration on markers of iron status (concentrations of serum iron, serum ferritin, transferrin saturation) Correlation between NTBI concentration and iron status indicators will be evaluated 2 hour post dose No