Frequently asked questions about EXJADE
EXJADE is a chelation therapy promoting the excretion of iron, primarily through the feces. EXJADE has a wealth of experience and has been used to chelate more than 90,000 patients.1,2,3
To learn more about EXJADE, choose one of the following links.
This information is based on the EU Summary of Product Characteristics that is not country-specific. Please consult your local prescribing information and/or contact your local Novartis representative. You can also consult www.novartisoncology.com.
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General Questions
What is EXJADE?
EXJADE is a tridentate ligand that binds iron with high affinity, forming a 2:1 complex that is excreted in bile and eliminated primarily via the feces.4
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How is EXJADE administered?
EXJADE is administered orally, once daily on an empty stomach at least 30 minutes before food, preferably at the same time each day. The tablets are dispersed by stirring in a glass of water or orange or apple juice (100 to 200 mL) until a fine suspension is obtained. After the suspension has been swallowed, any residue must be resuspended in a small volume of water or juice and swallowed. The tablets must not be chewed or swallowed whole.4 Learn more about dosing.
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What are the presentations of EXJADE?
How is EXJADE eliminated?
Deferasirox and its metabolites are primarily excreted in the feces (84% of the dose). Renal excretion of deferasirox and its metabolites is minimal (8% of the dose). The mean elimination half-life (t½) ranged from 8 to 16 hours.4
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How can I find more EXJADE information in my local country?
Taking EXJADE
What is the therapeutic indication for EXJADE?
EXJADE is indicated for the treatment of chronic iron overload due to frequent blood transfusions (≥7 ml/kg/month of packed red blood cells) in patients with β-thalassemia major aged 6 years and older.
EXJADE is also indicated for the treatment of chronic iron overload due to blood transfusion in patients aged 2 years and older with β-thalassemia major or other anemias when deferoxamine is contraindicated or inadequate.
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When should EXJADE therapy be initiated?
It is recommended that therapy with EXJADE be started after the transfusion of approximately 20 units (about 100 mL/kg) of packed red blood cells, or when there is evidence from clinical monitoring that chronic iron toxicity is present (eg, serum ferritin >1000 µg/L).4 Learn more about EXJADE.
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What is the recommended starting dose of EXJADE?
The recommended initial daily dose of EXJADE is 20 mg/kg body weight. An initial daily dose of 30 mg/kg may be considered for patients receiving more than 14 mL/kg/month of packed red blood cells (corresponding to approximately >4 units/month for an adult), and for whom the objective is reduction of iron toxicity.4
An initial daily dose of 10 mg/kg may be considered for patients receiving less than 7 mL/kg/month of packed red blood cells (corresponding to approximately <2 units/month for an adult), and for whom the objective is maintenance of the body iron level.4
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Is there an easy way to calculate the dose of EXJADE for patients already taking deferoxamine?
For patients already well managed on treatment with deferoxamine, a starting dose of EXJADE that is numerically half that of the deferoxamine dose could be considered (eg, a patient receiving 40 mg/kg/day of deferoxamine for 5 days per week [or equivalent] could be transferred to a starting daily dose of 20 mg/kg of EXJADE).4
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How should therapeutic response be monitored during treatment?
It is recommended that serum ferritin be monitored every month, and that the dose of EXJADE be adjusted if necessary every 3 to 6 months based on the trends in serum ferritin. Dose adjustments may be made in steps of 5 to 10 mg/kg, and are to be tailored to the individual patient's response and therapeutic goals (maintenance or reduction of iron burden).4
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How should EXJADE be taken?
EXJADE must be taken orally, once daily on an empty stomach at least 30 minutes before food, preferably at the same time each day. The tablets are dispersed by stirring in a glass of water or orange or apple juice (100 to 200 mL) until a fine suspension is obtained. After the suspension has been swallowed, any residue must be resuspended in a small volume of water or juice and swallowed. The tablets must not be chewed or swallowed whole.
Dispersion in carbonated drinks or milk is not recommended due to foaming and slow dispersion, respectively.4 Learn more about dosing.
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Is the recommended dosing different for elderly or pediatric patients?
The dosing recommendations for elderly and pediatric patients are the same as for adults. Changes in weight of pediatric patients over time must be taken into account when calculating the dose.4
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How should therapy with EXJADE be monitored?
It is recommended that serum creatinine be assessed in duplicate before initiating therapy. Serum creatinine, creatinine clearance (estimated with the Cockcroft-Gault or MDRD formula in adults and with the Schwartz formula in children) and/or plasma cystatin C levels should be monitored weekly in the first month after initiation or modification of therapy with EXJADE, and monthly thereafter.
Tests for proteinuria should be performed monthly.
It is recommended that serum transaminases, bilirubin, and alkaline phosphatase be checked before the initiation of treatment, every 2 weeks during the first month and monthly thereafter.
Auditory and ophthalmic testing (including fundoscopy) is recommended before the start of treatment and at regular intervals thereafter (every 12 months).
As a general precautionary measure in the management of paediatric patients with transfusional iron overload, body weight, height and sexual development should be monitored at regular intervals (every 12 months).4
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Can EXJADE be taken with other iron chelation agents?
Special considerations
Are there any special considerations for patients with renal impairment?
EXJADE has not been studied in patients with renal impairment and is contraindicated in patients with creatinine clearance <60 mL/min.
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Are there any considerations for patients based on serum creatinine levels?
EXJADE has been studied only in patients with baseline serum creatinine within the age-appropriate normal range.
It is recommended that serum creatinine be assessed in duplicate before initiating therapy. Serum creatinine, creatinine clearance (estimated with the Cockcroft-Gault or MDRD formula in adults and with the Schwartz formula in children) and/or plasma cystatin C levels should be monitored weekly in the first month after initiation or modification of therapy with EXJADE, and monthly thereafter. Patients with pre-existing renal conditions and patients who are receiving medicinal products that depress renal function may be more at risk of complications. Care should be taken to maintain adequate hydration in patients who develop diarrhoea or vomiting.
For adult patients, the daily dose may be reduced by 10 mg/kg if a rise in serum creatinine by >33% above the average of the pre-treatment measurements and estimated creatinine clearance decreases below the lower limit of the normal range (<90 mL/min) are seen at two consecutive visits, and cannot be attributed to other causes. For pediatric patients, the dose may be reduced by 10 mg/kg if estimated creatinine clearance decreases below the lower limit of the normal range (<90 mL/min) and/or serum creatinine levels rise above the age-appropriate upper limit of normal at two consecutive visits.
After a dose reduction, for adult and pediatric patients, treatment should be interrupted if a rise in serum creatinine >33% above the average of the pre-treatment measurements is observed and/or the calculated creatinine clearance falls below the lower limit of the normal range. Treatment may be reinitiated depending on the individual clinical circumstances.
Renal tubulopathy has been mainly reported in children and adolescents with β-thalassemia treated with EXJADE. Tests for proteinuria should be performed monthly. As needed, additional markers of renal tubular function (eg, glycosuria in non-diabetics and low levels of serum potassium, phosphate, magnesium or urate, phosphaturia, aminoaciduria) may also be monitored. Dose reduction or interruption may be considered if there are abnormalities in levels of tubular markers and/or if clinically indicated.
If, despite dose reduction and interruption, the serum creatinine remains significantly elevated and there is also persistent abnormality in another marker of renal function (eg, proteinuria, Fanconi’s Syndrome), the patient should be referred to a renal specialist, and further specialized investigations(such as renal biopsy) may be considered.
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Are there any special considerations for patients with hepatic impairment?
EXJADE has not been studied in patients with hepatic impairment, and must be used with caution in such patients. There are no unique initial dosing recommendations for patients with hepatic impairment. Hepatic function in all patients should be monitored before treatment, every 2 weeks during the first month and then every month.4
EXJADE is not recommended in patients with severe hepatic impairment. Treatment has been initiated only in patients with baseline liver transminase levels up to 5 times the upper limit of the normal range.4
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What are the contraindications to therapy with EXJADE?
Does EXJADE contain lactose?
Each tablet contains 136 mg lactose. Patients with rare hereditary problems of galactose intolerance, the Lapp lactase deficiency, glucose-galactose malabsorption, or severe lactase deficiency should not take this medicine.4
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Can EXJADE be taken with antacids?
The concomitant administration of EXJADE and aluminum-containing antacid preparations has not been formally studied. Although EXJADE has a lower affinity for aluminum than for iron, EXJADE tablets must not be taken with aluminum-containing antacid preparations.4
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Can EXJADE be taken during pregnancy?
Side effects
Does EXJADE affect patients' ability to drive or operate heavy machinery?
What adverse reactions may be seen during therapy with EXJADE?
The most frequent reactions reported during chronic treatment with EXJADE in adult and pediatric patients include gastrointestinal disturbances in about 26% of patients (mainly nausea, vomiting, diarrhea, or abdominal pain) and skin rash in about 7% of patients. Diarrhea is reported more commonly in pediatric patients aged 2 to 5 years than in older patients. These reactions are dose-dependent, mostly mild to moderate, generally transient, and mostly resolve even if treatment is continued.
During clinical trials, increases in serum creatinine of >33% on ≥2 consecutive occasions, sometimes above the upper limit of the normal range, occurred in about 36% of patients. These were dose-dependent. About two-thirds of the patients showing serum creatinine increase returned below the 33% level without dose adjustment. In the remaining third the serum creatinine increase did not always respond to a dose reduction or a dose interruption. Indeed, in some cases, only a stabilization of the serum creatinine values has been observed after dose reduction.
Gallstones and related biliary disorders were reported in about 2% of patients. Elevations of liver transaminases were reported as an adverse drug reaction in 2% of patients. Elevations of transaminases greater than 10 times the upper limit of the normal range, suggestive of hepatitis, were uncommon (0.3%). During postmarketing experience, hepatic failure, sometimes fatal, has been reported with EXJADE, especially in patients with pre-existing liver cirrhosis. As with other iron chelator treatment, high-frequency hearing loss and lenticular opacities (early cataracts) have been uncommonly observed in patients treated with EXJADE. See your local prescribing information for further details.4
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What may happen in the event of an overdose?
Cases of overdose (2 to 3 times the prescribed dose for several weeks) have been reported. In one case, this resulted in subclinical hepatitis, which resolved without long-term consequences after a dose interruption. Single doses of 80 mg/kg in iron overloaded thalassemic patients have been tolerated, with only mild nausea and diarrhea noted. Single doses of up to 40 mg/kg in normal subjects have been well tolerated. Acute signs of overdose may include nausea, vomiting, headache, and diarrhea. Overdose may be treated by induction of emesis or by gastric lavage, and by symptomatic treatment.4
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Has EXJADE been associated with growth retardation?
In one clinical study, growth and sexual development of pediatric patients treated with EXJADE for up to 5 years were not affected. However, as a general precautionary measure in the management of pediatric patients with transfusional iron overload, body weight, height and sexual development should be monitored at regular intervals (every 12 months).4
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References
- Data on file. Novartis Pharma AG, Basel, Switzerland.
- Pennell DJ, Porter JB, Cappellini MD, Efficacy of deferasirox in reducing and preventing cardiac iron overload in β-thalassemia. Blood. 2010;115 (12): 2364-2371.
- Pennell DJ, Porter JB, Cappellini MD, Chan LL, El-Beshlawy A, Aydinok Y, et al. Efficacy and safety of deferasirox (Exjade®) in β-thalassemia patients with myocardial siderosis: 2-year results from the EPIC cardiac sub-study. Poster presented at: 51st annual American Society of Hematology Meeting; December 5-8, 2009; New Orleans, LA.
- EXJADE® summary of product characteristics. West Sussex, United Kingdom: Novartis Europharm Limited; 2011.