An Extension Trial to Assess the Safety of Re-dosing of Iron Isomaltoside/Ferric Derisomaltose (Monofer®/Monoferric®)

An Open-label, Multicentre, Extension Trial to Assess the Safety of Re-dosing of Intravenous Iron Isomaltoside/Ferric Derisomaltose (Monofer®/Monoferric®)

Evaluate safety and efficacy of intravenous (IV) iron isomaltoside/ferric derisomaltose re-dosing, in subjects who were previously treated with iron isomaltoside/ferric derisomaltose.

Among the various formulations of parenteral iron that are currently available, iron isomaltoside/ferric derisomaltose may allow flexibility in terms of high and rapid dosing. Up to now, most clinical trials with intravenous (IV) iron treatment were of 4-12 weeks in duration; longer trials are warranted to follow-up on long-term safety.

The aim of the trial was to evaluate the safety and efficacy of IV iron isomaltoside/ferric derisomaltose re-dosing in subjects who were previously treated with iron isomaltoside/ferric derisomaltose in lead-in trials.

This was a 6-months extension trial lasting 26 weeks. Eligible subjects attended 5 visits: screening, baseline (subjects treated with a single IV dose of 1000 mg iron isomaltoside/ferric derisomaltose), and follow-up visits at week 2, 13, and 26 weeks after the IV dose, for safety and efficacy assessments.

Inclusion Criteria:

1. Completed one of the lead-in trials
2. Randomised and dosed with iron isomaltoside/ferric derisomaltose in one of the lead-in trials.
3. Haemoglobin (Hb) of ≤ 11 g/dL
4. Screening serum ferritin (s-ferritin) ≤ 100 ng/mL, or ≤ 300 ng/mL if transferrin saturation (TSAT) ≤ 30 %
5. Willingness to participate and signing the informed consent form (ICF)

Exclusion Criteria:

1. Intravenous (IV) iron treatment between the lead-in trial and screening
2. During 30-day period prior to screening or during the trial period; has or will be treated with a red blood cell transfusion, radiotherapy, and/or chemotherapy
3. Received an investigational drug within 30 days of screening
4. Decompensated liver cirrhosis or active hepatitis
5. Pregnant or nursing women.
6. Any other laboratory abnormality, medical condition, or psychiatric disorders which, in the opinion of the Investigator, will put the subject's disease management at risk or may result in the subject being unable to comply with the trial requirements