MedPath

Low-dose Iron Supplementation in Non-anaemic Iron-deficient Women

Not Applicable
Completed
Conditions
Iron Deficiency (Without Anemia)
Registration Number
NCT05869422
Lead Sponsor
Dr. Krayenbühl GmbH
Brief Summary

The goal of this study is to investigate the efficacy of a low dose iron supplement (6mg) compared to a placebo tablet.

Detailed Description

The established therapy for iron-deficiency today is oral iron supplementation. However, this often leads to side effects such as constipation, black stools, nausea, and abdominal pain. There are some studies that have compared the efficacy of low-dose iron with normal-dose iron. These showed that the side effects are dose-dependent. Furthermore, some studies have shown that the uptake capacity of high-dose iron is less efficient due to the upregulation of hepcidin. In a pilot study with low-dose iron (6mg per tablet), a significant increase in iron was shown, which can be explained by a lower hepcidin release. Therefore, the investigators would like to show the efficacy of the low-dose iron product in a placebo-controlled setting. Furthermore, the goal is to examine the reduction of side effects before and after administration of the iron and placebo tablet. Additionally, a potential increase of low blood pressure to normal blood pressure will be investigated. There will be two groups of women: one group will be given a low-dose iron supplement of two tablets containing each 6mg for 2 months (60 days), the other one will get two placebo tablet for 2 months, accordingly.

Recruitment & Eligibility

Status
COMPLETED
Sex
Female
Target Recruitment
59
Inclusion Criteria
  • informed consent as documented by signature
  • female gender
  • premenopausal
  • age > 18 years
  • regular menstrual cycle
  • BMI in normal range (18-25 kg/m²)
  • serum-ferritin ≤30µg/l
  • no anaemia (Hemoglobin ≥117g/l)
  • no intake of dietary supplements containing iron (last 4 weeks)
  • the participant is linguistically and cognitively able to understand the study procedure
Exclusion Criteria
  • Current pregnancy
  • breastfeeding
  • hypermenorrhea (more than 5 unties/tampons per day)
  • chronic inflammatory diseases (e.g. colitis)
  • psychiatric disorders
  • chronic kidney disease (creatinine >80 µmol/l)
  • liver disease (ALT >35 U/l)
  • increased CRP (>5mg/l)
  • hypersensitivity to iron-supplements
  • intake of medicines that interact with oral iron supplementation (e.g. PPI)

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Primary Outcome Measures
NameTimeMethod
Serum-ferritin change60 ± 5 days

significant change of serum-ferritin under supplementation

Secondary Outcome Measures
NameTimeMethod
Blood Pressure60 ± 5 days

change of blood pressure (systolic and diastolic blood pressure)

Blood Sugar60 ± 5 days

change of blood sugar levels

Lipid Status60 ± 5 days

change of lipid status (total cholesterol, HDL, LDL, triglycerides)

Trial Locations

Locations (1)

University Hospital of Zurich

🇨🇭

Zurich, Switzerland

University Hospital of Zurich
🇨🇭Zurich, Switzerland
© Copyright 2025. All Rights Reserved by MedPath