NCT04735848

Brief Summary

The study participants will take 3 different doses of iron supplements at 8 am, on 3 different days. By taking blood samples in the morning and afternoon, the investigators will determine the effects of the iron supplements on plasma hepcidin and compare them to baseline plasma hepcidin values.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
15

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jun 2021

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

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 19, 2021

Completed
15 days until next milestone

First Posted

Study publicly available on registry

February 3, 2021

Completed
4 months until next milestone

Study Start

First participant enrolled

June 1, 2021

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 31, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 31, 2021

Completed
Last Updated

October 8, 2021

Status Verified

October 1, 2021

Enrollment Period

3 months

First QC Date

January 19, 2021

Last Update Submit

October 5, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • Plasma hepcidin change

    The investigators will measure the plasma hepcidin level of the patients in the morning at 8am, (right before the intake of the iron-supplement) as well as in the afternoon at 4pm. The investigators will also measure the plasma hepcidin level on a baseline day (at the same times), when the patients don't take any iron supplement. By these measurements the investigators will report the change in the plasma hepcidin level after the intake of an iron-supplement.

    The hepcidin measurement of all samples will be done after the last blood sample of the last participant is taken. Which is planed to be done up to 6 month from the first baseline visit.

Secondary Outcomes (1)

  • Dose-response relationship between iron and hepcidin

    The hepcidin measurement of all samples will be done after the last blood sample of the last participant is taken. Which is planed to be done up to 6 month from the first baseline visit.

Other Outcomes (1)

  • Number of participants with side effects

    The participants will be asked for side effects in the afternoon of the same day as the participants take the iron-supplement. The analysis of the reported side-effects is planed to be done up to 6 month from the first baseline visit.

Study Arms (4)

6mg iron-supplement

EXPERIMENTAL

All participants will be in this arm. Everyone will take all three different doses of iron-supplement (6mg; 30mg;60mg).

Dietary Supplement: Iron-supplement application

30mg iron-supplement

EXPERIMENTAL

All participants will be in this arm. Everyone will take all three different doses of iron-supplement (6mg; 30mg;60mg).

Dietary Supplement: Iron-supplement application

60mg iron-supplement

EXPERIMENTAL

All participants will be in this arm. Everyone will take all three different doses of iron-supplement (6mg; 30mg;60mg).

Dietary Supplement: Iron-supplement application

Baseline

NO INTERVENTION

Baseline measurement

Interventions

Iron-supplement applicationDIETARY_SUPPLEMENT

The participants will take the corresponding amount of iron-supplement supervised at 8am.

30mg iron-supplement60mg iron-supplement6mg iron-supplement

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Informed Consent as documented by signature
  • Female gender
  • Premenopausal
  • Age \> 18 years
  • Regular menstrual cycle
  • BMI in normal range (18-25kg/m2)
  • Serum-ferritin ≤30ng/ml
  • No anemia
  • No intake of dietary supplements

You may not qualify if:

  • Intake of dietary supplements
  • Pregnancy
  • Hypermenorrhea (\> 80ml blood loss, or more than 5 unties/tampons per day)
  • Anemia
  • Serum-ferritin \>30ng/ml
  • BMI \<18 kg/m2 or \>25 kg/m2
  • Chronic inflammatory disease
  • Hypersensitivity to iron supplements

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Universitätsspital Zürich

Zurich, 8091, Switzerland

Location

Related Publications (1)

  • Karczewski M, Simic S, Saleh L, Nowak A, Schubert MG, Moretti D, Swinkels DW, Beuschlein F, Suter PM, Krayenbuehl PA. The magnitude of the plasma hepcidin response to oral iron supplements depends on the iron dosage. Swiss Med Wkly. 2024 Feb 19;154:3635. doi: 10.57187/s.3635.

MeSH Terms

Conditions

Iron Deficiencies

Condition Hierarchy (Ancestors)

Iron Metabolism DisordersMetabolic DiseasesNutritional and Metabolic Diseases

Study Officials

  • Pierre-Alexandre Krayenbühl

    University of Zurich

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Model Details: The participants will take all three different doses of iron and will serve as there own control
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Research associate at the Clinic for Endocrinology

Study Record Dates

First Submitted

January 19, 2021

First Posted

February 3, 2021

Study Start

June 1, 2021

Primary Completion

August 31, 2021

Study Completion

August 31, 2021

Last Updated

October 8, 2021

Record last verified: 2021-10

Locations