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- Klinische proef NCT07921433
Iron Absorption From a Nutritional Iron Supplement
Conventional oral iron supplements often cause gastrointestinal side effects and are limited by poor bioavailability, leaving unabsorbed iron to reach the colon. Hydrocolloid-based hydrogel matrix formulations designed for gradual iron release present a promising approach to improve iron absorption. This study evaluates fractional iron absorption (FIA) from three low-dose hydrogel formulations containing ferrous fumarate compared with ferrous fumarate without a hydrogel matrix. Test products will be administered with water, with and without a standardized breakfast. All formulations will be intrinsically labelled with stable iron isotopes ( 57Fe or 54Fe), and FIA will be determined 14 days after administration based on erythrocyte iron incorporation. In this randomized, within-subject corssover study conducted in non-anemic, iron-depleted women, each participant will receive all test conditions and serve as her own control.
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
- Voedingssupplement: Iron-Enriched Hydrogel Supplement (A with breakfast)
- Voedingssupplement: Iron-Enriched Hydrogel Supplement (B with breakfast)
- Voedingssupplement: Iron-Enriched Hydrogel Supplement (A without breakfast)
- Voedingssupplement: Iron-Enriched Hydrogel Supplement (B without breakfast)
- Voedingssupplement: Iron-Enriched Hydrogel Supplement (C with breakfast)
- Voedingssupplement: Control (FeFum, with breakfast)
- Voedingssupplement: Control (FeFum, without breakfast)
Studietype
Inschrijving (Geschat)
Fase
- Niet toepasbaar
Contacten en locaties
Studiecontact
- Naam: Camarena
- Telefoonnummer: +41446328393
- E-mail: seline.camarena@pharma.ethz.ch
Studie Locaties
-
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Canton of Zurich
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Zurich, Canton of Zurich, Zwitserland, 8006
- Werving
- ETH Zürich, Laboratory of Clinical Biopharmacy
-
Contact:
- Camarena
- Telefoonnummer: +41446328393
- E-mail: seline.camarena@pharma.ethz.ch
-
-
Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Female aged 18 to 45 years
- Plasma ferritin <30 µg/L
- Body mass index (BMI) 18.5 kg/m2 - 24.9 kg/m2.
- Body weight <65 kg.
- Signed informed consent
- Sufficient command of English (mother tongue or B2 level)
Exclusion Criteria:
- Anemia, defined as hemoglobin (Hb) <120 g/L (<12.0 g/dL).
- Elevated systemic inflammatory markers (C-reactive protein >5.0 mg/L).
- Chronic digestive, renal and/or metabolic diseases
- Chronic medications (except for contraceptives)
- Use of vitamin, mineral, or pre-/Pprobiotic supplements in the 2 weeks before or during the study
- Blood transfusion, blood donation or significant blood loss (>400ml) over the past 4 months
- Difficulty with blood withdrawal
- Pregnancy (tested in serum/urine) or intention to become pregnant during the course of the study
- Lactation
- Previous participation in a study using stable isotopes or participation in any clinical study within the last 30 days
- Participants who cannot be expected to comply with the study protocol (e.g. not available on certain study appointments)
- Inability to understand the information sheet and the informed consent form due to cognitive or language reasons
- Smoking (>1 cigarette/week)
- Vegan diet (the standardized breakfast contains plain whole milk yogurt and butter)
Special exclusion criteria for participants in the MRI imaging sub-study (n=9):
- Presence of a heart pacemaker, neurostimulator, or any other active implanted electronic device.
- Use of a hearing aid that cannot be safely removed for the MRI examination.
- Use of removable dentures that cannot be safely removed for the MRI examination.
- History of surgery on the head or heart involving implanted material that is not confirmed MRI-safe.
- Presence of metallic objects in the body (e.g. implants, magnets, metal splinters, gunshot fragments, tattoos, piercings, or surgical clips) that are not confirmed MRI-safe.
- History of metal splinter injury (e.g. ocular foreign body) or occupational exposure associated with increased risk of retained metal fragments.
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Ander
- Toewijzing: Gerandomiseerd
- Interventioneel model: Crossover-opdracht
- Masker: Enkel
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
|
Experimenteel: FeHydro-A with breakfast (Condition 1)
FeHydro-A with sodium ascorbate, consumed with a standardized breakfast |
FeHydro-A (20 mg elemental iron as ferrous fumarate embedded in hydrogel matrix; labeled with 57Fe or 54Fe) + Standardized Breakfast
Andere namen:
|
|
Experimenteel: FeHydro-B with breakfast (Condition 2)
FeHydro-B without sodium ascorbate, consumed with a standardized breakfast |
FeHydro-B (20 mg elemental iron as ferrous fumarate embedded in hydrogel matrix; labeled with 57Fe or 54Fe) + Standardized Breakfast
Andere namen:
|
|
Experimenteel: FeHydro-A without breakfast (Condition 3)
FeHydro-A with sodium ascorbate, consumed without breakfast |
FeHydro-A (20 mg elemental iron as ferrous fumarate embedded in hydrogel matrix; labeled with 57Fe or 54Fe) + 300 mL Water |
|
Experimenteel: FeHydro-B without breakfast (Condition 4)
FeHydro-B without sodium ascorbate, consumed without breakfast |
FeHydro-B (20 mg elemental iron as ferrous fumarate embedded in hydrogel matrix; labeled with 57Fe or 54Fe) + 300 mL Water |
|
Experimenteel: FeHydro-C with breakfast (Condition 5)
FeHydro-C with sodium ascorbate and gum arabic, consumed with a standardized breakfast |
FeHydro-C (20 mg elemental iron as ferrous fumarate embedded in hydrogel matrix; labeled with 57Fe or 54Fe) + Standardized Breakfast |
|
Actieve vergelijker: Control with breakfast (Condition 6)
Control ferrous fumarate, consumed with a standardized breakfast |
Control (20 mg elemental iron as ferrous fumarate without hydrogel matrix, in gelatin capsule; labeled with 57Fe or 54Fe) + Standardized Breakfast |
|
Actieve vergelijker: Control without breakfast (Condition 7)
Control ferrous fumarate, consumed without breakfast |
Control (20 mg elemental iron as ferrous fumarate without hydrogel matrix, in gelatin capsule; labeled with 57Fe or 54Fe) + 300 mL Water |
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Fractional Iron Absorption
Tijdsspanne: 14 days after administration of each labelled test condition
|
Fractional iron absorption will be calculated based on the shift of the iron isotope ratios in red blood cells |
14 days after administration of each labelled test condition
|
Medewerkers en onderzoekers
Sponsor
Medewerkers
Studie record data
Bestudeer belangrijke data
Studie start (Geschat)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- IRONH
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Beschrijving IPD-plan
Individual participant data (IPD) will not be made publicly available to protect participant privacy and maintain confidentiality regarding proprietary formulation data. De-identified, aggregated study results and primary outcome data will be published in peer-reviewed scientific journals and made available via public study registries upon completion of the trial.
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
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