Included as part of the "PRECAUTIONS" Section
Serious hypersensitivity reactions, including anaphylactic-type reactions, some of which have been life-threatening and fatal, have been reported in patients receiving Monoferric. Patients may present with shock, clinically significant hypotension, loss of consciousness, and/or collapse. Monitor patients for signs and symptoms of hypersensitivity during and after Monoferric administration for at least 30 minutes and until clinically stable following completion of the infusion. Only administer Monoferric when personnel and therapies are immediately available for the treatment of serious hypersensitivity reactions. Monoferric is contraindicated in patients with prior serious hypersensitivity reactions to Monoferric or any of its components [see CONTRAINDICATIONS]. In clinical trials in patients with IDA and CKD, serious or severe hypersensitivity were reported in 0.3% (6/2008) of the Monoferric treated subjects. These included 3 events of hypersensitivity in 3 patients; 2 events of infusion-related reactions in 2 patients and 1 event of asthma in one patient.
Excessive therapy with parenteral iron can lead to excess iron storage and possibly iatrogenic hemosiderosis or hemochromatosis. Monitor the hematologic response (hemoglobin and hematocrit) and iron parameters (serum ferritin and transferrin saturation) during parenteral iron therapy. Do not administer Monoferric to patients with iron overload [see OVERDOSE].
Patient Counseling Information
Advise the patient to read the FDA-approved patient labeling (PATIENT INFORMATION).
Prior History Of Allergies To Parenteral Iron Products
Question patients regarding any prior history of reactions to parenteral iron products [see WARNINGS AND PRECAUTIONS].
Advise patients to report any signs and symptoms of hypersensitivity that may develop during and following Monoferric administration, such as rash, itching, dizziness, lightheadedness, swelling and breathing problems [see WARNINGS AND PRECAUTIONS].
Carcinogenesis, Mutagenesis, Impairment Of Fertility
Carcinogenicity studies have not been conducted.
Iron oligosaccharide, an earlier formulation of ferric derisomaltose, was not genotoxic in an in vitro bacterial reverse mutation assay, an in vitro chromosomal aberrations test and an in vivo mouse micronucleus assay.
In a combined fertility and embryo-fetal development study in rats, ferric derisomaltose was administered intravenously to male rats 28 days prior to mating and through cohabitation and to female rats 14 days prior to cohabitation and through GD 17. Doses administered were 2, 6, or 19 mg Fe/kg/day in males and 3, 11, or 32 mg Fe/kg/day in females. There was no effect on male or female fertility in rats at up to 19 mg Fe/kg/day (approximately 0.2 times the MRHD of 1000 mg, based on BSA) in males and up to 32 mg Fe/kg/day (approximately 0.3 times the MRHD of 1000 mg based on BSA) in females.
Use In Specific Populations
There are no available data on Monoferric use in pregnant women to evaluate for a drug-associated risk of major birth defects, miscarriage or adverse maternal or fetal outcomes. Published studies on the use of intravenous iron products in pregnant women have not reported an association with adverse developmental outcomes. However, these studies cannot establish or exclude the absence of any drug-related risk during pregnancy because the studies were not designed to assess for the risk of major birth defects (see Data). There are risks to the mother and fetus associated with untreated iron deficiency anemia (IDA) in pregnancy (see Clinical Considerations). Iron complexes have been reported to be teratogenic and embryocidal in non-iron depleted pregnant animals. The findings in animals may be due to iron overload and may not be applicable to patients with iron deficiency. Animal reproduction studies of ferric derisomaltose administered to rats and rabbits during the period of organogenesis caused adverse developmental outcomes including structural abnormalities and embryo-fetal mortality at doses approximately 0.09 and 0.4 times the maximum recommended human dose (MRHD) of 1000 mg, respectively, based on body surface area (see Data).
The estimated background risk of major birth defects and miscarriage for the indicated populations is unknown. Adverse outcomes in pregnancy occur regardless of the health of the mother or the use of medications. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively.
Disease-associated maternal and/or embryo/fetal risk
Untreated iron deficiency anemia (IDA) in pregnancy is associated with adverse maternal outcomes such as post-partum anemia. Adverse pregnancy outcomes associated with IDA includes increased risk for preterm delivery and low birth weight.
Iron complexes have been reported to be teratogenic and embryocidal in non-anemic pregnant animals at single doses above 125 mg iron/kg body weight. The highest recommended dose in human clinical use is 20 mg iron/kg body weight.
In a combined fertility and embryo-fetal development study in rats, ferric derisomaltose was administered intravenously to female rats 14 days prior to cohabitation and through gestation day (GD) 17 at doses of 3, 11, and 32 mg Fe/kg/day. The doses of 11 and 32 mg Fe/kg/day (approximately 0.1 and 0.3 times the MRHD of 1000 mg, based on body surface area (BSA)) resulted in an increase in the incidence of skeletal developmental delays.
Ferric derisomaltose was administered intravenously to pregnant rabbits during organogenesis, from GD7 to GD20, at doses of 11, 25 and 43 mg Fe/kg/day. The dose of 43 mg Fe/kg/day (approximately 0.8 times the MRHD of 1000 mg, based on BSA) resulted in increased maternal mortality, abortion, and premature delivery, and increased postimplantation loss. Adverse developmental findings at this dose included fetal mortality, reduced fetal weights, and fetal developmental variations and malformations (including domed head, cleft palate, macroglossia, hydrocephaly, small brain). Fetal malformations and reduced fetal weights were also noted in the 25 mg Fe/kg/day group (approximately 0.5 times the MRHD based on BSA).
The available data on the use of Monoferric in lactating women demonstrate that iron is present in breast milk. However, the data do not inform the potential exposure of iron for the breastfed child or the effects on milk production. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for Monoferric in addition to any potential adverse effects on the breastfed child from the drug or from the underlying maternal condition.
Monitor breastfed children for gastrointestinal toxicity (constipation, diarrhea).
Safety and effectiveness have not been established in pediatric patients.
Of the 3934 patients in clinical studies of Monoferric, 29% were 65 years and over, while 13% were 75 years and over. No overall differences in safety or effectiveness were observed between these patients and younger subjects, and other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out.