Iron Long-Term Labelling Study Switzerland

NCT02979132 | Unknown

• 1 other identifier: Fe_LTL_Swi
• Study Type: interventional
• Target: 60
• Locations: 1 country
• Sites: 1

Brief Summary

Conventional indirect indicators of iron status, using serum and red blood cell biomarkers, are confounded by inflammation from common infections and are therefore of limited use in populations carrying a high burden of infection and inflammation, as for example women of reproductive age in malaria endemic areas in developing countries. Even without the confounding effect of inflammation, current markers of iron status are insensitive to small changes in dietary iron and do not allow to establish associations between dietary, lifestyle and genetic factors and iron balance. With a new method based on the dilution of a previously administered and equilibrated stable isotope signal, an accurate measurement of long-term oral iron balance and absorption is possible, allowing the estimation of iron requirements and potentially providing fundamental guidance for supplementation and fortification programs in both healthy and chronically inflamed/infected patients. In the current study the novel methodology will be validated in generally healthy subjects with low iron status. The technique will be used to assess dietary and lifestyle determinants of iron status and to compare the effect on iron balance and iron status of three distinct, commonly used iron interventions: food fortification with iron; oral iron supplementation, and intravenous iron infusion.

Conditions

Iron Absorption

Outcome Measures

Primary Outcomes (1)

• iron isotope composition in blood

  tracer to tracee rate in venous blood samples at different time points

  9 months

Study Arms (3)

Oral Iron Supplementation

ACTIVE COMPARATOR

Eisensulfat LOMAPHARM 50 mg administration for 90 days

Drug: Eisensulfat LOMAPHARM 50 mg

Intravenous Iron Supplementation

ACTIVE COMPARATOR

Single-dose Ferinject(R) administration

Drug: Ferinject(R)

Food Fortification with Iron

ACTIVE COMPARATOR

Consumption of iron-fortified biscuits (15 mg Fe in form of FeSO4) for 90 d

Dietary Supplement: iron fortified biscuits

Interventions

Eisensulfat LOMAPHARM 50 mg DRUG

oral intake of an 'Eisensulfat LOMAPHARM 50 mg' tablet every morning for 90 days

Also known as: Eisentabletten

Oral Iron Supplementation

Ferinject(R) DRUG

Single-dose Ferinject(R) administration

Also known as: Iron Infusion

Intravenous Iron Supplementation

iron fortified biscuits DIETARY_SUPPLEMENT

consumption of an iron-fortfied biscuit every morning for 90 days

Also known as: HUG-Biskuits

Food Fortification with Iron

Eligibility Criteria

• Age: 18 Years - 50 Years
• Sex: female
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Have participated in a former absorption study in our lab,
• Signed written informed consent to participate in the new study,
• Serum ferritin \< 25 µg/L

You may not qualify if:

• Anaemia (Hb \< 117 g/L),
• Any metabolic, gastrointestinal, kidney or chronic disease such as diabetes, renal failure, hepatic dysfunction, hepatitis, hypertension, cancer or cardiovascular diseases (according to the participants own statement),
• Allergic or similar reactions against iron supplements,
• Known fructose intolerance, glucose-galactose malabsorption or saccharase-isomaltase deficiency,
• Known hypersensitivity to ponceau R4 and ponceau R4 aluminium salt (E124)
• Continuous/long-term use of medication during the whole study (except for contraceptives),
• Regular consumption of mineral and vitamin supplements within 2 weeks prior to 1st supplement administration (more than 3 consecutive days or more than 5 times within 14 days),
• Blood transfusion, blood donation or significant blood loss (accident, surgery) over the past 6 months,
• pregnancy or breast feeding,
• Intention to become pregnant during the course of the study,
• Known or suspected non-compliance, drug or alcohol abuse,
• Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia, etc. of the participant,
• Participation in another study with investigational drug within the 30 days preceding and during the present study,
• Enrollment of the investigator, his/her family members, employees and other dependent persons

Sponsors & Collaborators

• Prof. Michael B. Zimmermann: lead

Study Sites (1)

Human Nutrition Laboratory, ETH Zürich

Zurich, Canton of Zurich, 8092, Switzerland

Location

Related Publications (1)

• Speich C, Mitchikpe CES, Cercamondi CI, Zeder C, Brittenham GM, Moretti D, Zimmermann MB. Direct assessment of body iron balance in women with and without iron supplementation using a long-term isotope dilution method in Benin and Switzerland. Am J Clin Nutr. 2021 Jun 1;113(6):1657-1669. doi: 10.1093/ajcn/nqaa433.

  PMID: 33693464 DERIVED

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: DIAGNOSTIC
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR INVESTIGATOR
• PI Title: Professor

Study Record Dates

• First Submitted: November 29, 2016
• First Posted: December 1, 2016
• Study Start: September 1, 2017
• Primary Completion: July 31, 2018
• Study Completion: March 31, 2019
• Last Updated: October 9, 2018

Record last verified: 2018-10

Locations

CH (1)