Sucroferric oxyhydroxide

Sucroferric oxyhydroxide is almost not absorbed from the gastrointestinal tract. Although the potential for interactions with medicinal products seems low, for concomitant treatment with medicinal products with a narrow therapeutic window, the clinical effect and adverse events should be monitored, on initiation or doseadjustment of either sucroferric oxyhydroxide or the concomitant medicinal product, or the physician should consider measuring blood levels. When administering any medicinal product that is already known to interact with iron (like alendronate and doxycycline) or has the potential to interact with sucroferric oxyhydroxide based only on in vitro studies like levothyroxine, the medicinal product should be administered at least one hour before or two hours after sucroferric oxyhydroxide.

Patients with a recent history of peritonitis (within the last 3 months), significant gastric or hepatic disorders and patients with major gastrointestinal surgery have not been included in clinical studies with sucroferric oxyhydroxide. Sucroferric oxyhydroxide treatment should only be used in these patients following careful assessment of benefit/risk.

There are no available clinical data from the use of sucroferric oxyhydroxide on exposed human pregnancies.

Reproductive and developmental toxicity studies in animals revealed no risk with respect to pregnancy, embryonic/foetal development, parturition or postnatal development. Sucroferric oxyhydroxide should only be used by pregnant women if clearly needed following careful assessment of benefit/risk.

There are no available clinical data from the use of sucroferric oxyhydroxide in breast-feeding women. Since absorption of iron from sucroferric oxyhydroxide is minimal, excretion of iron from sucroferric oxyhydroxide in breast milk is unlikely. A decision on whether to continue breast-feeding or to continue therapy with sucroferric oxyhydroxide should be made taking into account the benefit of breast-feeding to the child and the benefit of sucroferric oxyhydroxide therapy to the mother.

Fertility

There are no data on the effect of sucroferric oxyhydroxide on fertility in humans. In animal studies, there were no adverse effects on mating performance, fertility, and litter parameters following treatment with sucroferric oxyhydroxide.

Sucroferric oxyhydroxide has no or negligible influence on the ability to drive and use machines.

Summary of the safety profile

The current safety profile of sucroferric oxyhydroxide is based on a total of 778 patients on haemodialysis and 57 patients on peritoneal dialysis, who received sucroferric oxyhydroxide treatment of up to 55 weeks.

In these clinical trials, approximately 43% of the patients experienced at least one adverse reaction during sucroferric oxyhydroxide treatment, and 0.36% of the adverse reactions were reported as serious. The majority of the adverse reactions reported from trials were gastrointestinal disorders, with the most frequently reported adverse reactions being diarrhoea and discoloured faeces (very common). The vast majority of these gastrointestinal disorders occurred early during treatment and abated with time with continued dosing. No dose-dependent trends were observed in the adverse reaction profile of sucroferric oxyhydroxide.

Tabulated list of adverse reactions

Adverse reactions reported from the use of sucroferric oxyhydroxide at doses from 250 mg iron/day to 3,000 mg iron/day in these patients (n=835) are listed in the following table.

The reporting rate is classified as very common (≥1/10), common (≥1/100 to <1/10), uncommon (≥1/1,000 to <1/100).

Adverse reactions detected in clinical trials:

Description of selected adverse reactions

^*Diarrhoea

Diarrhoea occurred in 11.6% of patients in clinical trials. In the 55 weeks long term studies, the majority of these diarrhoea adverse reactions were transient, occurred early during treatment initiation and led to treatment discontinuation in 3.1% of the patients.

Paediatric population

In general, the safety profile of sucroferric oxyhydroxide in paediatric (2 to <18 years of age) and adult patients was comparable. The adverse reactions most frequently reported were gastrointestinal disorders including diarrhoea (very common, 16.7%), vomiting (common, 6.1%), gastritis (common, 3.0%) and discoloured faeces (common, 3.0%).