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Updated: Jul 13, 2026

The Caco-2 Cell Bioassay for Measurement of Food Iron Bioavailability
Published on: April 28, 2022
Effect of oral aluminium hydroxide on iron absorption from iron(III)-hydroxide polymaltose complex in patients with
Maria A Potgieter1, Johannes H Potgieter, Cornea Venter
1Farmovs-Parexel, Bloemfontein, South Africa. Linda.Potgieter@PAREXEL.com
Abstract:
The study was carried out as an open-label, laboratory-blind, single-dose, randomized, two-period crossover, isotope efficacy study. Twenty-two patients with iron-deficiency anemia were enrolled in the study. The study consisted of two treatment phases of 15 days each, including blood sample measurements for Fe-59 activity. The 2 treatments were given orally. Treatment A was Fe-59 labeled iron(III)-hydroxide polymaltose complex (IPC, Maltofer), equivalent to 100 mg elemental iron given orally, and Treatment B consisted of Treatment A combined with 600 mg aluminium hydroxide (CAS 21645-51-2) (10 ml). No differences between the two treatment groups with regard to the erythrocyte uptake were found, and thus IPC can be used with aluminium hydroxide, if necessary.
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