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Iron Absorption From GDS Capsules II

Information source: Swiss Federal Institute of Technology
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Iron Deficiency

Intervention: GDS capsule with meal (Dietary Supplement); Ferrous sulfate with meal (Dietary Supplement)

Phase: N/A

Status: Completed

Sponsored by: Swiss Federal Institute of Technology

Official(s) and/or principal investigator(s):
Isabelle Aeberli, PhD, Principal Investigator, Affiliation: ETH Zurich, Switzerland


Slow release iron capsules containing ferrous sulfate have been designed based on the gastric delivery system. Iron absorption from those capsules administered with and without meals will be measured using stable iron isotopes.

Clinical Details

Official title: Iron Absorption Mechanism From a Slow Release Iron Capsule Using the Gastric Delivery System (Ferrous Sulfate)

Study design: Allocation: Randomized, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Basic Science

Primary outcome: Fractional iron absorption

Secondary outcome: Serum isotope appearance


Minimum age: 18 Years. Maximum age: 50 Years. Gender(s): Female.


Inclusion Criteria:

- female,

- age 18-50 years,

- max. body weight 65 kg,

- serum ferritin < 30 µg/l

Exclusion Criteria:

- pregnancy,

- lactation,

- regular intake of medication,

- blood donation or significant blood losses over the past 4 months

Locations and Contacts

Human Nutrition Laboratory, ETH Zurich, Zurich, Switzerland
Additional Information

Starting date: November 2013
Last updated: July 29, 2014

Page last updated: August 23, 2015

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