|Astellas Launches XOSPATA® (gilteritinib) in the U.S. for the Treatment of Adult Patients with Relapsed/Refractory Acute Myeloid Leukemia (AML) with a FLT3 Mutation|
|By: PR Newswire Association LLC. - 11 Dec 2018||Back to overview list
TOKYO, Dec. 10, 2018 /PRNewswire/ -- Astellas Pharma Inc. (TSE: 4503, President and CEO: Kenji Yasukawa, Ph.D. "Astellas") today announced that XOSPATA® (generic name: gilteritinib) is now available for prescription in the United States for the treatment of adult patients who have relapsed or refractory (resistant to treatment) Acute Myeloid Leukemia (AML) with a FLT3 mutation as detected by an FDA-approved test.1 An oral monotherapy, XOSPATA is the first and only FLT3-targeting agent approved by the FDA for the treatment of relapsed or refractory FLT3 mutation-positive (FLT3mut+) AML.
XOSPATA was approved by the U.S. Food and Drug Administration (FDA) on November 28, 2018. Health professionals, patients and their caregivers can learn more about XOSPATA and support services provided through Astellas at https://www.xospata.com/.
"Astellas aims to pursue cutting-edge science that provides value to patients," said Mark Reisenauer, senior vice president, oncology business unit, Astellas. "XOSPATA is an excellent example of how we are continuing to advance on this promise to patients."
Astellas is providing a full range of patient support services for XOSPATA in the U.S. XOSPATA Support SolutionsSM offers access and reimbursement support to help patients access XOSPATA as prescribed by their healthcare providers . XOSPATA Support SolutionsSM also provides information regarding patient healthcare coverage options and financial assistance programs that may be available to help eligible patients with financial needs. Patients, caregivers and healthcare providers can visit www.xospatasupportsolutions.com or call 844-632-9272 to learn more.
Astellas reflected the impact from this launch in its financial forecasts of the current fiscal year ending March 31, 2019.
About Acute Myeloid Leukemia
About XOSPATA (gilteritinib)
Gilteritinib was discovered through a research collaboration with Kotobuki Pharmaceutical Co., Ltd., and Astellas has exclusive global rights to develop, manufacture and commercialize gilteritinib.
Astellas is currently investigating gilteritinib in various FLT3 mutation-positive AML patient populations through several Phase 3 trials. Visit AstellasAMLTrials.com to learn more about ongoing gilteritinib clinical trials.
Important Safety Information
Warnings and Precautions
Prolonged QT Interval XOSPATA has been associated with prolonged cardiac ventricular repolarization (QT interval). Of the 292 patients treated with XOSPATA in the clinical trial, 1.4% were found to have a QTc interval greater than 500 msec and 7% of patients had an increase from baseline QTc greater than 60 msec. Perform electrocardiogram (ECG) prior to initiation of treatment with XOSPATA, on days 8 and 15 of cycle 1, and prior to the start of the next two subsequent cycles. Interrupt and reduce XOSPATA dosage in patients who have a QTcF >500 msec. Hypokalemia or hypomagnesemia may increase the QT prolongation risk. Correct hypokalemia or hypomagnesemia prior to and during XOSPATA administration.
Pancreatitis There have been rare reports of pancreatitis in patients receiving XOSPATA in clinical studies. Evaluate patients who develop signs and symptoms of pancreatitis. Interrupt and reduce the dose of XOSPATA in patients who develop pancreatitis.
Embryo-Fetal Toxicity Based on findings in animals and its mechanism of action, XOSPATA can cause embryo-fetal harm when administered to a pregnant woman. Advise females of reproductive potential to use effective contraception during treatment with XOSPATA and for at least 6 months after the last dose of XOSPATA. Advise males with female partners of reproductive potential to use effective contraception during treatment with XOSPATA and for at least 4 months after the last dose of XOSPATA. Pregnant women, patients becoming pregnant while receiving XOSPATA or male patients with pregnant female partners should be apprised of the potential risk to the fetus.
Overall, 22 of 292 patients (8%) discontinued XOSPATA treatment permanently due to an adverse reaction. The most common adverse reactions (>1%) leading to discontinuation were pneumonia (2%), sepsis (2%) and dyspnea (1%). The most common adverse reactions (?20%) were myalgia/arthralgia (42%), transaminase increased (41%), fatigue/malaise (40%), fever (35%), non-infectious diarrhea (34%), dyspnea (34%), edema (34%), rash (30%), pneumonia (30%), nausea (27%), stomatitis (26%), cough (25%), headache (21%), hypotension (21%), dizziness (20%) and vomiting (20%).
Other clinically significant adverse reactions occurring in ?10% of patients included: electrocardiogram QT prolonged (7%), cardiac failure (grouped terms) (4%), pericardial effusion (3%), pericarditis (2%), differentiation syndrome (1%), anaphylactic reaction (1%) and posterior reversible encephalopathy syndrome (1%).
Lab Abnormalities: The most common lab abnormalities (>20%) that were Grade ?3 that occurred ?10% were: hypophosphatemia (12%), alanine aminotransferase increased (12%), hyponatremia (12%), aspartate aminotransferase increased (10%).
Strong CYP3A inhibitors: Concomitant use of XOSPATA with a strong CYP3A inhibitor increases XOSPATA exposure. Consider alternative therapies that are not strong CYP3A inhibitors. If the concomitant use of these inhibitors is considered essential for the care of the patient, monitor patient more frequently for XOSPATA adverse reactions. Interrupt and reduce XOSPATA dosage in patients with serious or life-threatening toxicity.
Drugs that Target 5HT2B Receptor or Sigma Nonspecific Receptor: Concomitant use of XOSPATA may reduce the effects of drugs that target the 5HT2B receptor or the sigma nonspecific receptor (e.g., escitalopram, fluoxetine, sertraline). Avoid concomitant use of these drugs with XOSPATA unless their use is considered essential for the care of the patient.
Please see Full Prescribing Information for additional safety information.
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SOURCE Astellas Pharma Inc.
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