Active clinical trials for "Anemia, Iron-Deficiency"

Helicobacter pylori is recognized as a major gastrointestinal pathogen in developing countries. This microorganism infects up to 60% of children less than five years in those countries and is strongly associated with chronic gastritis and peptic ulcer disease in children and adults. The progression of gastritis to atrophy often leads to decreased gastric acid output, which is a well-known risk factor for anemia. Gastric acid is essential for increasing the bioavailability and absorption of non-heme dietary iron, the most important source of iron in developing countries. Numerous reports suggest that iron malabsorption secondary to low gastric acid output is a problem in developing world countries. It has been further observed that iron deficiency anemia is resistant to iron therapy particularly in these countries. In a recently completed study we observed an association of anaemia with H. pylori infection. We hypothesize that the poor bioavailability of iron in these countries could be related to H. pylori -induced low gastric acid output and we propose to investigate the role of H. pylori infection as a cause of anemia and treatment failure of iron supplementation in Bangladesh. A prospective, randomized, double-blind, placebo-controlled field trial is proposed among four groups ( 65 each) of H. Pylori infected children of 2-5 years of age with iron deficiency anemia. The children will be assigned to one of the four therapies: antibiotics alone (for H. Pylori eradication), antibiotic plus iron therapy, iron therapy alone, or placebo. Hemoglobin concentration, serum ferritin concentration, and transferrin receptor will be measured before and at 1 and 3 month after the intervention. We also propose a complementary study in an additional 20 children with H. Pylori infection and iron deficiency anemia to assess iron absorption with application of double stable isotopes. The change in hematological parameters will also be compared among the groups before and after the therapy. The results of this study are expected to have implications in the prevention and treatment of iron deficiency anemia in developing countries.

Iron deficiency is thought to be the most common nutrient deficiency among pregnant women and the most common cause of anemia in pregnancy. The consequences of iron deficiency anemia are serious and can include diminished intellectual and productive capacity and possibly increased susceptibility to infection in mothers and infants, low birthweight, and premature births, hence the importance of appropriate treatment during pregnancy. Most guidelines recommend an increase in iron consumption by about 15-30 mg/day, an amount readily met by most prenatal vitamin formulations. This is adequate supplementation for non-anemic and non-iron-deficient women. However, women with iron deficiency anemia should receive an additional 30-20 mg/day until the anemia is corrected. It is not clear whether intermittent administration of oral iron is equivalent to once daily to rise the hemoglobin levels in pregnant women with iron deficiency anemia. Alternate day treatment with supplemental iron has been suggested as a way to improve its absorption because daily doses may suppress the mucosal uptake of iron even in the presence of iron deficiency until the intestinal mucosa completes its turnover. Another possible factor associated with the frequency of iron dosing is related to hepcidin, the central regulatory molecule in the metabolism of iron in mammals. The synthesis of hepcidin is controlled by 3 kinds of signals: inflammation; the need for increased erythropoiesis, and an iron status signal based on plasma iron levels and iron stores. If plasma iron levels or iron stores are increased, the resulting signal increases hepcidin levels, thereby blocking iron absorption and its release from stores (liver, macrophages) and preventing iron overload.This hepcidin effect, suppressing iron absorption, could last as long as 48h. In this study, the researchers aim to determine if alternate day dosing of iron in pregnant women with iron deficiency anemia results in improved levels of hemoglobin or hematocrit and ferritin. Hepcidin levels will be compared between patients on daily iron supplementation versus alternate day supplementation. The researchers will also evaluate if alternate day dosing of iron supplementation results in a better side effect profile, and with better patient compliance.

Anemia affects between 20 and 50 % of women in the postpartum period. It is associated with several adverse health consequences, such as impaired physical work capacity, deficits in cognitive function and mood, reduced immune function and reduced duration of breastfeeding. Postpartum anemia has also been shown to be a major risk factor for postpartum depression and to significantly disrupt maternal-infant interactions. Iron deficiency is the principal cause of anemia after delivery. Oral iron supplementation with ferrous sulfate has been considered the standard of care with blood transfusion reserved for more severe or symptomatic cases. In the last decade, two new intravenous iron compounds have been registered for clinical use: ferric carboxymaltose (Iroprem®) and iron isomaltoside (Monofer®). No study to date compared efficacy of iron carboxymaltose to iron isomaltoside for treatment of postpartum anemia. The objective of the study is to compare efficacy of intravenous iron carboxymaltose to intravenous iron isomaltoside and oral iron sulphate for treatment of postpartum anemia.

Iron deficiency anemia is a global health problem and the most common cause of anemia worldwide. Patients with iron deficiency (ID) and IDA can present with a multitude of symptoms including fatigue, restless legs syndrome and pica.Oral iron supplementation is associated with increasing hemoglobin in multiple studies in women, pregnant women and elderly patients.However, the optimal dose and frequency of oral iron supplementation for treatment remains unclear. The current proposed study attempts to address this gap in the literature.

This is a randomized non inferiority trial to evaluate the response to iron therapy in the standard daily vs. intermittent (three-four times a week on nonconsecutive days) groups by using hematological markers (hemoglobin, hematocrit, transferrin, hepcidin, ferritin, human soluble transferrin receptor). The secondary outcome is to evaluate gastrointestinal discomfort and adherence to therapy between two treatment groups.

Anemia in pregnancy is defined by the World Health Organization as hemoglobin levels of ≤ 11 g/dl. Globally, a prevalence rate of 38% was estimated by the World Health Organization for pregnant women.Treatment of iron deficiency anemia during pregnancy remains a main public health issue. Oral iron salts have been recommended for treatment of iron deficiency anemia e.g. ferrous fumarate. Increasing the dose of ferrous fumarate will subsequently increase the bioavailability of iron preparation, however it also increases the frequency of gastrointestinal tract side effects e.g. nausea, constipation, diarrhea, flatulence, and black stained stools. Besides, the increased bioavailable ferrous fumarate may decrease by many foods and / or chelating drugs in the gastrointestinal tract which interfere with its absorption leading to variability in the hemoglobin correction during the treatment. Ferrous bisglycinate is an iron amino acid chelate. It is formed by reaction of ferrous iron with two molecules of the amino acid glycine by a covalent bound in a process called chelation. Ferrous bisglycinate is claimed to have better patient compliance because of fewer gastrointestinal tract side effects. It is also claimed that ferrous bisglycinate improves iron absorption, storage and increase hemoglobin level better than the conventionally used iron salts.

This study evaluates the efficacy and tolerability of lactoferrin in contrast to ferrous sulphate in the context of iron deficiency anemia with pregnancy. Half of participants will receive lactoferrin, while the other half will receive ferrous sulphate.

The trial was designed to evaluate the incidence of unintended hypophosphatemia (low level of phosphate in the blood) in subjects with iron deficiency anaemia (IDA).

Evaluation of safety and efficacy of iron isomaltoside/ferric derisomaltose compared with iron sucrose, in subjects with both non-dialysis-dependent chronic kidney disease (NDD-CKD) and iron deficiency anaemia (IDA).

To evaluate the efficacy of oral ferric maltol compared with placebo in the treatment of IDA in subjects with CKD