Nutritional deficiency disease

This trial tests whether a single intravenous iron infusion can improve exercise capacity in people with heart failure and iron deficiency. Participants are randomly assigned to receive the infusion or no treatment, then undergo cardiopulmonary exercise testing to measure peak ox…

This trial tests whether intravenous (IV) iron or oral iron pills work better for adults with congestive heart failure who also have low iron levels. Participants are randomly assigned to receive either a one-time IV infusion of ferric carboxymaltose (with a possible repeat dose)…

This phase 2 study tested a weekly extended-release capsule of calcifediol (CTAP101) in 44 adults with chronic kidney disease on hemodialysis who also had vitamin D insufficiency and secondary hyperparathyroidism. The goal was to see if the drug could raise vitamin D levels and l…

This trial tests whether giving older adults a high dose of vitamin D before their flu shot can strengthen their immune response. Participants are 65 or older with low vitamin D levels. The study measures changes in infection-fighting proteins and antibody levels after vaccinatio…

This study tests whether pregnant women who eat two eggs daily have babies with longer birth lengths and better development. Researchers in Rwanda are giving eggs to some women and comparing them to those eating their usual diet. The goal is to see if this simple, affordable food…

This study looked at whether switching to a high-energy, high-protein tube feeding formula (Sondalis HP 2 kcal) improves digestive comfort and quality of life in adults who have trouble tolerating their current home tube feeding. Seventeen adults on home enteral nutrition took th…