NCT05869422

Brief Summary

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

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
59

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started May 2024

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 11, 2023

Completed
11 days until next milestone

First Posted

Study publicly available on registry

May 22, 2023

Completed
12 months until next milestone

Study Start

First participant enrolled

May 6, 2024

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 21, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 21, 2024

Completed
Last Updated

June 11, 2025

Status Verified

June 1, 2025

Enrollment Period

8 months

First QC Date

May 11, 2023

Last Update Submit

June 6, 2025

Conditions

Keywords

iron deficiencylow dose iron therapyiron therapy

Outcome Measures

Primary Outcomes (1)

  • Serum-ferritin change

    significant change of serum-ferritin under supplementation

    60 ± 5 days

Secondary Outcomes (3)

  • Blood Pressure

    60 ± 5 days

  • Blood Sugar

    60 ± 5 days

  • Lipid Status

    60 ± 5 days

Other Outcomes (1)

  • Safety Endpoint

    60 ± 5 days

Study Arms (2)

Placebo

PLACEBO COMPARATOR

placebo tablet containing no iron

Other: Placebo

Low Dose Iron

EXPERIMENTAL

low-dose tablet containing 6mg of iron

Dietary Supplement: Iron

Interventions

IronDIETARY_SUPPLEMENT

60 ± 5 days of daily oral iron supplementation.

Low Dose Iron
PlaceboOTHER

60 ± 5 days of daily oral placebo intake.

Placebo

Eligibility Criteria

Age18 Years - 50 Years
Sexfemale(Gender-based eligibility)
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • 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

You may not qualify if:

  • 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)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University Hospital of Zurich

Zurich, Canton of Zurich, 8091, Switzerland

Location

MeSH Terms

Conditions

Iron Deficiencies

Interventions

Iron

Condition Hierarchy (Ancestors)

Iron Metabolism DisordersMetabolic DiseasesNutritional and Metabolic Diseases

Intervention Hierarchy (Ancestors)

Metals, HeavyElementsInorganic ChemicalsTransition ElementsMetals

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
study employees
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
PD Dr. med.

Study Record Dates

First Submitted

May 11, 2023

First Posted

May 22, 2023

Study Start

May 6, 2024

Primary Completion

December 21, 2024

Study Completion

December 21, 2024

Last Updated

June 11, 2025

Record last verified: 2025-06

Locations