Clinical trials: Iron Absorption
Obesity
Evaluation of the Effect of Body Weight and Composition on Iron Absorption and Blood Volume
A total of 75 subjects will be recruited for this study (25 normal weight, 25 overweight, 25 obese). In each subject blood volume will be determined using the minimally invasive carbon monoxide-rebreathing method (substudy 1) and…
- Trial name
- NCT01884506
- Testing
- labeled iron solution, labeled iron solution and ascorbic acid
- Where
- Switzerland
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Swiss Federal Institute of Technology
Iron Deficiency, Anemia
The Efficacy of a Local Vitamin-C Rich Fruit (Guava) in Improving Iron Absorption From Mungbean Based Meals and Its Effect on Iron Status of Rural Indian Children (6-10 Years)
Iron deficiency is estimated to affect about one fifth of the world's population, and women and children are among the most severely affected.
- Trial name
- MUGUST_2 (NCT01191463)
- Testing
- Mung Bean Meal, Guava
- Where
- India
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Wageningen University
Nonheme Iron Absorption
Iron Bioavailability From MyPyramid Menus
This study will measure nonheme iron absorption from each of the 7 daily MyPyramid menus. Such measurements will confirm whether modifications are needed to meet dietary iron recommendations and will provide data useful for…
- Trial name
- NCT00754234
- Testing
- My Pyramid menu days 1, 2, 3, 4, 5, 6 or 7
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- USDA Grand Forks Human Nutrition Research Center
Iron-deficiency
Measuring Dietary Iron Absorption From Edible Insects and Assessing the Effect of Chitin Content on Iron Bioavailability (Study 2)
Due to the growing world population, there is a need to develop viable ecological and nutritional alternatives to animal food products.
- Trial name
- Sustironable2 (NCT05328141)
- Testing
- Bread and butter, X.gideon, X.gideon with ascorbic acid
- Where
- Switzerland
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- Swiss Federal Institute of Technology
Iron Deficiency
Iron Absorption From Tef-injera in Women of Reproductive Age
Anemia is one of the most common health problems all over the world with around half of preschool-aged children (<5 years) and one third of women affected.
- Trial name
- NCT01687062
- Testing
- FeSO4, reduction of phytate, NaFeEDTA
- Where
- Switzerland
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Swiss Federal Institute of Technology
Iron Deficiency (ID), Iron Absorption
Iron Absorption From Plant Heme Iron
Heme, an iron protoporphyin IX complex, consists of a ferrous ion captured in a porphyrin ring acting as a tetradentate ligand. The unique features of heme iron -its unusually high absorption in foods and its resistance to…
- Trial name
- PHIA (NCT07143890)
- Testing
- Iron chlorophyllin + no-matrix, SoyHb + no-matrix, FeSO4 + no-matrix
- Where
- Switzerland
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- ETH Zurich
Iron Absorption, Bariatric Surgery
Iron Absorption Trial
Introduction: There are indications that the absorption of oral iron supplementation is reduced after a Roux- en -Y gastric bypass.
- Conditions
- Iron Absorption, Bariatric Surgery, Roux- en -y Gastric Bypass
- Trial name
- NCT02228902
- Testing
- Ferrous fumarate, Ferrous gluconate
- Where
- Netherlands
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Rijnstate Hospital
Iron Deficiency
Absorption of Heme and Non-Heme Iron in Pregnant and Non-pregnant Women and Mechanisms of Fetal Iron Transfer
The three specific aims of this study are 1) to assess the impact of iron status on relative differences in absorption of heme and non-heme iron among pregnant women and non-pregnant women, 2) to assess the magnitude and the…
- Trial name
- NCT01019096
- Where
- 2 sites in United States
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Cornell University
Iron Absorption, Iron Requirements
Determination of Iron Absorption and Losses in People Living at High Altitude to Investigate the Requirements in This Population Group Using a Newly Developed Technique
Iron is an essential micronutrient responsible for a whealth of biological processes of the human body. Iron plays a fundamental role especially in oxygen transport, by binding to hemoglobin in the blood circulation.
- Conditions
- Iron Absorption, Iron Requirements, Altitude
- Trial name
- ARIA (NCT07142590)
- Testing
- Stable Isotopes
- Where
- Switzerland
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Diego Moretti
Iron Deficiency, Anemia
Iron Absorption From Complementary Food Fortificants (CFFs) and Acceptability of CFFs by Beninese Children
Iron deficiency (ID) is still a main public health problem in sub-Saharan Africa. Iron deficient children have an increased risk for anemia which is associated with adverse infant development that might be partly irreversible.
- Trial name
- NCT01321099
- Testing
- NaFeEDTA, Phytase, Vitamin C
- Where
- Benin
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Swiss Federal Institute of Technology
Iron Deficiency, Anemia; Deficiency, Nutritional, With Poor Iron Absorption
A Study to Investigate the Effect of Vitamin D3 Supplementation on Iron Status in Iron Deficient Women
Iron is one of the most vital elements in humans as it plays a role in physiological functions such as transferring and storing oxygen, transporting electrons and catalysing numerous reactions, from oxidative metabolism to…
- Conditions
- Iron Deficiency, Anemia; Deficiency, Nutritional, With Poor Iron Absorption, Vitamin D Deficiency
- Trial name
- NCT02714361
- Testing
- Vitamin D3 supplement
- Where
- United Kingdom
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Chester
Iron Deficiency
Iron Absorption From GDS Capsules II
Slow release iron capsules containing ferrous sulfate have been designed based on the gastric delivery system. Iron absorption from those capsules administered with and without meals will be measured using stable iron isotopes.
- Trial name
- NCT01985386
- Testing
- GDS capsule with meal, Ferrous sulfate with meal
- Where
- Switzerland
- Volunteers
- 8 people, healthy volunteers welcome
- Sponsor
- Swiss Federal Institute of Technology
Iron-deficiency
Iron Absorption and Variations of Iron Status, Hepcidin, Inflammation and Sex Hormones During the Menstrual Cycle
Iron supplementation is the first line of treatment of iron deficiency in most women, but we do not know when the best time is to supplement in the context of the menstrual cycle.
- Trial name
- MBL_Abs (NCT05580783)
- Testing
- Test meal labelled with 54Fe, Test meal labelled with 57Fe, Test meal labelled with 58Fe
- Where
- Switzerland
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Isabelle Herter-Aeberli
Iron Absorption
Genetic Variants and Iron Absorption
The two specific aims of this study are: 1) to assess the impact of a genetic variant on iron status; 2) to assess the impact of a genetic variant on non-heme absorption among Asian women.
- Trial name
- NCT02197624
- Where
- United States
- Volunteers
- 57 people, healthy volunteers welcome
- Sponsor
- Cornell University
Obesity, Iron Deficiency
Study of Sleeve Gastrectomy on Iron Intestinal Absorption in Morbidly Obese Patients
Subject: Evaluation of the impact of obesity surgery by sleeve gastrectomy on intestinal iron absorption of morbid obese subjects.
- Trial name
- FORBES (NCT01483768)
- Testing
- Sleeve gastrectomy for morbid obesity
- Where
- France
- Volunteers
- 88 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Obesity
Omega-3 Fatty Acid Supplementation and Fractional Iron Absorption in Obese South African Women
In South Africa the prevalence of obesity in women of reproductive age is high; these women also have a high risk for iron deficiency (ID).
- Trial name
- NCT05220735
- Testing
- Omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA)
- Where
- South Africa
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Swiss Federal Institute of Technology
Anemia, Iron-deficiency
The Effect of Human Milk Oligosaccharides and Galacto-oligosaccharides on Iron Absorption in Kenyan Infants
Effective and safe strategies to deliver iron to infants and young children in Sub-Saharan Africa are urgently needed. One potential strategy to improve safety of iron fortification is to limit the total amount of unabsorbed iron…
- Trial name
- FeHMOGOS (NCT04163406)
- Testing
- ferrous fumarate, ferrous fumarate + GOS, ferrous fumarate + HMOs
- Where
- Kenya
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Swiss Federal Institute of Technology
Anemia, Iron Deficiency (Without Anemia)
The Immediate and Long-term Effects of a Novel Marine-based Iron Supplement in Adult Females
The goal of this study is to identify how well a fish-based iron supplement is absorbed and to learn how many, if any, digestive related side effects are caused by ingesting the supplement.
- Conditions
- Anemia, Iron Deficiency (Without Anemia), Iron Absorption
- Trial name
- NCT07199244
- Testing
- marine-based heme iron
- Where
- United States
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- Nutraceuticals Research Institute
Iron Metabolism Disorders, Iron Overload
Inhibiting Dietary Iron Absorption in Subjects With Hereditary Hemochromatosis by a Natural Polyphenol Supplement
Polyphenolic compounds are very strong Inhibitors of non-heme iron absorption, as they form insoluble complexes with ferrous iron.
- Conditions
- Iron Metabolism Disorders, Iron Overload, Polyphenols
- Trial name
- NCT03990181
- Testing
- meal matrix & NPPS, meal matrix & CS, no-matrix & NPPS
- Where
- 2 sites in Portugal, Switzerland
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Swiss Federal Institute of Technology
Iron Absorption
Dietary Iron Requirements
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…
- Trial name
- NCT07139821
- Testing
- Stable iron isotope
- Where
- 2 sites in United States
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Pennington Biomedical Research Center