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Gilteritinib

Also known as: Xospata

Route: Oral

3 interactions on record⛔ Black Box Warning

Gilteritinib has 3 known drug interactions based on U.S. FDA drug labeling data. Notable interactions include combinations with Escitalopram, Fluoxetine, Sertraline. Patients taking Gilteritinib should inform their healthcare provider of all current medications — including over-the-counter drugs and supplements — to avoid potentially harmful combinations. Data sourced from OpenFDA and the NIH National Library of Medicine.

Total: 3
Moderate: 3

Moderate (3)

Gilteritinib + Escitalopram— Gilteritinib may reduce the effects of escitalopram. Avoid concomitant use unless essential for patient care.
Gilteritinib + Fluoxetine— Gilteritinib may reduce the effects of fluoxetine. Avoid concomitant use unless essential for patient care.
Gilteritinib + Sertraline— Gilteritinib may reduce the effects of sertraline. Avoid concomitant use unless essential for patient care.

Gilteritinib + Escitalopram🟡Moderate

Gilteritinib may reduce the effects of escitalopram. Avoid concomitant use unless essential for patient care.

Gilteritinib + Fluoxetine🟡Moderate

Gilteritinib may reduce the effects of fluoxetine. Avoid concomitant use unless essential for patient care.

Gilteritinib + Sertraline🟡Moderate

Gilteritinib may reduce the effects of sertraline. Avoid concomitant use unless essential for patient care.

⛔ FDA Black Box Warning

WARNING: DIFFERENTIATION SYNDROME Patients treated with XOSPATA have experienced symptoms of differentiation syndrome, which can be fatal or life-threatening if not treated. Symptoms may include fever, dyspnea, hypoxia, pulmonary infiltrates, pleural or pericardial effusions, rapid weight gain or peripheral edema, hypotension, or renal dysfunction. If differentiation syndrome is suspected, initiate corticosteroid therapy and hemodynamic monitoring until symptom resolution [see Warnings and Precautions ( 5.1 ) and Adverse Reactions ( 6.1 )] . WARNING: DIFFERENTIATION SYNDROME See full prescribing information for complete boxed warning. Patients treated with XOSPATA have experienced symptoms of differentiation syndrome, which can be fatal if not treated. If differentiation syndrome is suspected, initiate corticosteroid therapy and hemodynamic monitoring until symptom resolution. ( 5.1 , 6.1 )

Contraindications

4 CONTRAINDICATIONS XOSPATA is contraindicated in patients with hypersensitivity to gilteritinib or any of the excipients. Anaphylactic reactions have been observed in clinical trials [see Adverse Reactions ( 6 ) and Description ( 11 )] . Hypersensitivity to gilteritinib or any of the excipients. Anaphylactic reactions have been observed in clinical trials. ( 4 , 6.1 )

Pregnancy & Breastfeeding

8.1 Pregnancy Risk Summary Based on findings from animal studies (see Data) and its mechanism of action, XOSPATA can cause fetal harm when administered to a pregnant woman [see Clinical Pharmacology ( 12.1 )] . There are no available data on XOSPATA use in pregnant women to inform a drug-associated risk of adverse developmental outcomes. In animal reproduction studies, administration of gilteritinib to pregnant rats during organogenesis caused adverse developmental outcomes including embryo-fetal lethality, suppressed fetal growth, and teratogenicity at maternal exposures (AUC 24 ) approximately 0.4 times the AUC 24 in patients receiving the recommended dose ( see Data ). Advise pregnant women of the potential risk to a fetus. Adverse outcomes in pregnancy occur regardless of the health of the mother or the use of medications. The background risk of major birth defects and miscarriage for the indicated population is unknown. 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. Data Animal Data In an embryo-fetal development study in rats, pregnant animals received oral doses of gilteritinib of 0, 0.3, 3, 10, and 30 mg/kg/day during the period of organogenesis. Maternal findings at 30 mg/kg/day (resulting in exposures approximately 0.4 times the AUC 24 in patients receiving the recommended dose) included decreased body weight and food consumption. Administration of gilteritinib at the dose of 30 mg/kg/day also resulted in embryo-fetal death (postimplantation loss), decreased fetal body and placental weight, and decreased numbers of ossified sternebrae and sacral and caudal vertebrae, and increased incidence of fetal gross external (anasarca, local edema, exencephaly, cleft lip, cleft palate, short tail, and umbilical hernia), visceral (microphthalmia; atrial and/or ventricular defects; and malformed/absent kidney, and malpositioned adrenal, and ova

Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine, supplemented with a small number of well-established interactions from curated clinical references. For informational purposes only. Always consult your pharmacist or physician.