- ICH GCP
- Registre américain des essais cliniques
- Essai clinique 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.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
- Complément alimentaire: Iron-Enriched Hydrogel Supplement (A with breakfast)
- Complément alimentaire: Iron-Enriched Hydrogel Supplement (B with breakfast)
- Complément alimentaire: Iron-Enriched Hydrogel Supplement (A without breakfast)
- Complément alimentaire: Iron-Enriched Hydrogel Supplement (B without breakfast)
- Complément alimentaire: Iron-Enriched Hydrogel Supplement (C with breakfast)
- Complément alimentaire: Control (FeFum, with breakfast)
- Complément alimentaire: Control (FeFum, without breakfast)
Type d'étude
Inscription (Estimé)
Phase
- N'est pas applicable
Contacts et emplacements
Coordonnées de l'étude
- Nom: Camarena
- Numéro de téléphone: +41446328393
- E-mail: seline.camarena@pharma.ethz.ch
Lieux d'étude
-
-
Canton of Zurich
-
Zurich, Canton of Zurich, Suisse, 8006
- Recrutement
- ETH Zürich, Laboratory of Clinical Biopharmacy
-
Contact:
- Camarena
- Numéro de téléphone: +41446328393
- E-mail: seline.camarena@pharma.ethz.ch
-
-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
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.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Autre
- Répartition: Randomisé
- Modèle interventionnel: Affectation croisée
- Masquage: Seul
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Expérimental: 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
Autres noms:
|
|
Expérimental: 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
Autres noms:
|
|
Expérimental: 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 |
|
Expérimental: 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 |
|
Expérimental: 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 |
|
Comparateur actif: 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 |
|
Comparateur actif: 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 |
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Fractional Iron Absorption
Délai: 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
|
Collaborateurs et enquêteurs
Parrainer
Collaborateurs
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Estimé)
Achèvement primaire (Estimé)
Achèvement de l'étude (Estimé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- IRONH
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Description du régime IPD
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.
Informations sur les médicaments et les dispositifs, documents d'étude
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