FERRIC MALTOL: 421 Adverse Event Reports & Safety Profile

ACCRUFER (ferric maltol) capsules, an iron replacement product for oral administration, contain 30 mg iron and 201.5 mg maltol. Ferric maltol contains iron in a stable ferric state as a complex with a trimaltol ligand. Ferric maltol is 3-hydroxy-2-methyl-4H-pyrane-4-one iron (III) complex (3:1) and has the molecular formula (C 6 H 5 O 3 ) 3 Fe and a molecular mass of 431.2. Each red capsule, printed with “30”, contains colloidal anhydrous silica, crospovidone (Type A), lactose monohydrate, magnesium stearate and sodium lauryl sulfate as inactive ingredients. In addition, the capsule shell contains FD&C Blue No. 1, FD&C Red No. 40, FD&C Yellow No.6, hypromellose and titanium dioxide. The ink used for printing the marking contains Shellac, ammonium hydroxide, ethanol, iron oxide black and propylene glycol.

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AND USAGE ACCRUFER is indicated for the treatment of iron deficiency in adult and pediatric patients 10 years of age and older. ACCRUFER is an iron replacement product indicated for the treatment of iron deficiency in adult and pediatric patients 10 years of age and older. ( 1 )

AND ADMINISTRATION 30 mg orally twice daily on an empty stomach 1 hour before or 2 hours after meals ( 2.1 ) Swallow capsules whole. Do not open, break, or chew capsules. ( 2.1 ) Continue as long as necessary to replenish body iron stores ( 2.1 )

2.1 Recommended Dosage Adults and Children Aged 10 Years and Above ​ The recommended dosage of ACCRUFER is 30 mg orally twice daily, on an empty stomach 1 hour before or 2 hours after meals. Swallow capsules whole. Do not open, break, or chew capsules. Treatment duration will depend on the severity of iron deficiency but generally at least 12 weeks of treatment is required. The treatment should be continued as long as necessary until ferritin levels are within the normal range.

ACCRUFER is contraindicated in patients with a history of: Hypersensitivity to the active substance or to any of the excipients [see Description ( 11 )] . Reactions could include shock, clinically significant hypotension, loss of consciousness, and/or collapse. Hemochromatosis and other iron overload syndromes [see Warnings and Precautions ( 5.1 )] . Use may result in iron overdose [see Overdosage ( 10 )]. Receiving repeated blood transfusions. Use may result in iron overload [see Warnings and Precautions ( 5.2 ) and Overdosage ( 10 )]. Hypersensitivity to the active substance or any excipient ( 4 ) Hemochromatosis and other iron overload syndromes ( 4 ) Patients receiving repeated blood transfusions ( 4 )

REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: Increased Risk of Inflammatory Bowel Disease Flare [see Warnings and Precautions ( 5.1 )]

Iron

Overload [see Warnings and Precautions ( 5.2 )] Most common adverse reactions (incidence > 1%) are flatulence, diarrhea, constipation, feces discolored, abdominal pain, nausea, vomiting and abdominal discomfort/distension. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Shield Therapeutics Inc at 1-888-963-6267 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch .

6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. The data described below reflect exposure to ACCRUFER in 175 adult patients in the placebo-controlled phase of three randomized studies conducted in patients with anemia and quiescent inflammatory bowel disease (IBD) (Studies AEGIS 1 & 2) or non-dialysis dependent chronic kidney disease (CKD) (AEGIS 3). The pooled patient population had a mean age of 58 years, 67.4% were female (n=118), and 81.7% (n=143) were Caucasian.

Table

1 presents all adverse reactions occurring in the placebo-controlled period of the pooled randomized studies [see Clinical Studies ( 14 )] occurring at a rate of > 1% in the treated group, and for which the rate for ACCRUFER exceeds the rate for placebo.

Table

1.

Adverse Reactions

Reported by ≥1% of Patients Treated with ACCRUFER During Placebo-Controlled Period of Pooled Studies (Studies AEGIS1/2 and AEGIS 3) ACCRUFER 30 mg Twice Daily (N = 175) Placebo (N = 120)

Body System Adverse Reaction Gastrointestinal

Flatulence 4.6% 0.0% Diarrhea 4.0% 1.7% Constipation 4.0% 0.8% Feces discolored 4.0% 0.8% Abdominal pain 2.9% 2.5% Nausea 1.7% 0.8% Vomiting 1.7% 0.0% Abdominal discomfort 1.1% 0.0% Abdominal distension 1.1% 0.0% The proportion of patients who discontinued treatment due to adverse reactions during the double-blind, placebo-controlled portion of studies was 4.6% for patients taking ACCRUFER. The most common adverse reaction leading to discontinuation of ACCRUFER in these studies was abdominal pain (1.7% of patients).

Pediatric

Patients with Iron Deficiency Anemia The safety profile of ACCRUFER in pediatric patients was assessed in 24 patients aged 10 to <18 years of age enrolled to the FORTIS trial and treated with ACCRUFER. Overall, the safety profile reported in pediatric patients was consistent with the safety profile reported in adult patients with iron deficiency anemia.

AND PRECAUTIONS IBD Flare: Avoid use in patients with IBD flare ( 5.1 )

Iron

Overload: Do not administer to patients with iron overload or those receiving intravenous iron. ( 5.2 ) Risk of Overdosage in Children Due to Accidental Ingestion: Keep out of reach of children. ( 5.3 )

5.1 Increased Risk of Inflammatory Bowel Disease (IBD)

Flare

Avoid use of ACCRUFER in patients with an active inflammatory bowel disease (IBD) flare, as there is potential risk of increased inflammation in the gastrointestinal tract.

5.2 Iron Overload Excessive therapy with iron products can lead to excess storage of iron with the possibility of iatrogenic hemosiderosis. Do not administer ACCRUFER to patients with evidence of iron overload or patients receiving intravenous iron <span class="opacity-50 text-xs">[see Contraindications ( 4 )]</span> . Assess iron parameters prior to initiating ACCRUFER and monitor iron parameters while on therapy <span class="opacity-50 text-xs">[see Overdosage ( 10 ) and Clinical Pharmacology ( 12.2 )]</span> .

5.3 Risk of Overdosage in Children Due to Accidental Ingestion Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of reach of children. In case of accidental overdose, call a doctor or poison control center immediately.

INTERACTIONS Dimercaprol : Avoid concomitant use. ( 7.2 )

Oral

Medications : Separate administration of ACCRUFER from certain oral medications. Monitor clinical responses as appropriate. ( 7.1 , 7.2 )

7.1 Effect of Other Drugs on ACCRUFER Oral Medications There are no empirical data on avoiding drug interactions between ACCRUFER and concomitant oral medications. Concomitant use of some drugs may reduce the bioavailability of iron after administration of ACCRUFER. Separate the administration of ACCRUFER from these drugs. The duration of separation may depend on the absorption characteristics of the medication concomitantly administered, such as time to peak concentration or whether the drug is an immediate or extended release product. Monitor clinical response to ACCRUFER.

7.2 Effect of ACCRUFER on Other Drugs Dimercaprol Concomitant use of iron products with dimercaprol may increase the risk of nephrotoxicity. Avoid concomitant use of ACCRUFER with dimercaprol.

Oral Medications

Concomitant use of ACCRUFER may decrease the bioavailability of some drugs, including mycophenolate, ethinyl estradiol, ciprofloxacin and doxycycline [see Clinical Pharmacology ( 12.3 )] . For oral drugs where reductions in bioavailability may cause clinically significant effects on its safety or efficacy, separate the administration of ACCRUFER by at least 4 hours. Monitor clinical responses to concomitant drugs as appropriate.