IDHIFA- enasidenib mesylate tablet, film coated
HIGHLIGHTS OF PRESCRIBING INFORMATION
These highlights do not include all the information needed to use IDHIFA safely and effectively. See full prescribing information for IDHIFA.
IDHIFA® (enasidenib) tablets, for oral use
Initial U.S. Approval: 2017
WARNING: DIFFERENTIATION SYNDROME
See full prescribing information for complete boxed warning.
Patients treated with IDHIFA 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).
INDICATIONS AND USAGE
IDHIFA is an isocitrate dehydrogenase-2 inhibitor indicated for the treatment of adult patients with relapsed or refractory acute myeloid leukemia (AML) with an isocitrate dehydrogenase-2 (IDH2) mutation as detected by an FDA-approved test (1.1).
DOSAGE AND ADMINISTRATION
100 mg orally once daily until disease progression or unacceptable toxicity (2.2).
DOSAGE FORMS AND STRENGTHS
Tablets: 50 mg or 100 mg (3).
WARNINGS AND PRECAUTIONS
The most common adverse reactions (≥20%) are nausea, vomiting, diarrhea, elevated bilirubin, and decreased appetite (6.1).
To report SUSPECTED ADVERSE REACTIONS, contact Celgene Corporation at 1-888-423-5436 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
OATP1B1, OATP1B3, BCRP, and P-gp Substrates: Decrease the dosage of these substrates as recommended in its prescribing information when coadministered with IDHIFA, and as clinically indicated (7.1).
USE IN SPECIFIC POPULATIONS
Lactation: Advise not to breastfeed (8.2).
See 17 for PATIENT COUNSELING INFORMATION and Medication Guide.
FULL PRESCRIBING INFORMATION: CONTENTS*
Patients treated with IDHIFA have experienced symptoms of differentiation syndrome, which can be fatal if not treated. Symptoms may include fever, dyspnea, acute respiratory distress, pulmonary infiltrates, pleural or pericardial effusions, rapid weight gain or peripheral edema, lymphadenopathy, bone pain, and hepatic, renal, or multi-organ 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)].
Select patients for the treatment of AML with IDHIFA based on the presence of IDH2 mutations in the blood or bone marrow [see Indications and Usage (1.1) and Clinical Studies (14.1)]. Information on FDA-approved tests for the detection of IDH2 mutations in AML is available at http://www.fda.gov/CompanionDiagnostics.
The recommended dosage of IDHIFA is 100 mg taken orally once daily with or without food until disease progression or unacceptable toxicity. For patients without disease progression or unacceptable toxicity, treat for a minimum of 6 months to allow time for clinical response.
Do not split or crush IDHIFA tablets. Administer IDHIFA tablets orally about the same time each day. If a dose of IDHIFA is vomited, missed, or not taken at the usual time, administer the dose as soon as possible on the same day, and return to the normal schedule the following day.
Assess blood counts and blood chemistries for leukocytosis and tumor lysis syndrome prior to the initiation of IDHIFA and monitor at a minimum of every 2 weeks for at least the first 3 months during treatment. Manage any abnormalities promptly [see Adverse Reactions (6.1)].
Interrupt dosing or reduce dose for toxicities. See Table 1 for dosage modification guidelines.
|Adverse Reaction||Recommended Action|
IDHIFA is available in the following tablet strengths:
In the clinical trial, 14% of patients treated with IDHIFA experienced differentiation syndrome, which may be life-threatening or fatal if not treated. Differentiation syndrome is associated with rapid proliferation and differentiation of myeloid cells. While there is no diagnostic test for differentiation syndrome, symptoms in patients treated with IDHIFA included acute respiratory distress represented by dyspnea and/or hypoxia (68%) and need for supplemental oxygen (76%); pulmonary infiltrates (73%) and pleural effusion (45%); renal impairment (70%); fever (36%); lymphadenopathy (33%); bone pain (27%); peripheral edema with rapid weight gain (21%); and pericardial effusion (18%). Hepatic, renal, and multi-organ dysfunction have also been observed.
Differentiation syndrome has been observed with and without concomitant hyperleukocytosis, in as early as 1 day and up to 5 months after IDHIFA initiation.
If differentiation syndrome is suspected, initiate oral or intravenous corticosteroids (e.g., dexamethasone 10 mg every 12 hours) and hemodynamic monitoring until improvement. Taper corticosteroids only after resolution of symptoms. Symptoms of differentiation syndrome may recur with premature discontinuation of corticosteroid treatment. If severe pulmonary symptoms requiring intubation or ventilator support, and/or renal dysfunction persist for more than 48 hours after initiation of corticosteroids, interrupt IDHIFA until signs and symptoms are no longer severe [see Dosage and Administration (2.3)]. Hospitalization for close observation and monitoring of patients with pulmonary and/or renal manifestation is recommended.
Based on animal embryo-fetal toxicity studies, IDHIFA can cause embryo-fetal harm when administered to a pregnant woman. In animal embryo-fetal toxicity studies, enasidenib caused embryo-fetal toxicities starting at 0.1 times the steady state clinical exposure based on the area under the concentration-time curve (AUC) at the recommended human dose.
Advise pregnant women of the potential risk to the fetus. Advise females of reproductive potential to use effective contraception during treatment with IDHIFA and for at least 2 months after the last dose. Advise males with female partners of reproductive potential to use effective contraception during treatment with IDHIFA and for at least 2 months after the last dose [see Use in Specific Populations (8.1, 8.3)].
The following clinically significant adverse reactions are described elsewhere in the labeling:
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 safety evaluation of single-agent IDHIFA is based on 214 patients with relapsed or refractory AML who were assigned to receive 100 mg daily [see Clinical Studies (14.1)]. The median duration of exposure to IDHIFA was 4.3 months (range 0.3 to 23.6). The 30-day and 60-day mortality rates observed with IDHIFA were 4.2% (9/214) and 11.7% (25/214), respectively.
Serious adverse reactions were reported in 77.1% of patients. The most frequent serious adverse reactions (≥2%) were leukocytosis (10%), diarrhea (6%), nausea (5%), vomiting (3%), decreased appetite (3%), tumor lysis syndrome (5%), and differentiation syndrome (8%). Differentiation syndrome events characterized as serious included pyrexia, renal failure acute, hypoxia, respiratory failure, and multi-organ failure.
Overall, 92 of 214 patients (43%) required a dose interruption due to an adverse reaction; the most frequent adverse reactions leading to dose interruption were differentiation syndrome (4%) and leukocytosis (3%). Ten of 214 patients (5%) required a dose reduction due to an adverse reaction; no adverse reaction required dose reduction in more than 2 patients. Thirty-six of 214 patients (17%) permanently discontinued IDHIFA due to an adverse reaction; the most frequent adverse reaction leading to permanent discontinuation was leukocytosis (1%).
The most common adverse reactions (≥20%) of any grade were nausea, vomiting, diarrhea, elevated bilirubin and decreased appetite.
Adverse reactions reported in the trial are shown in Table 2.
|IDHIFA (100 mg daily)
|Body System |
|Gastrointestinal Disorders *|
|Nausea||107 (50)||11 (5)|
|Diarrhea||91 (43)||17 (8)|
|Vomiting||73 (34)||4 (2)|
|Metabolism and Nutrition Disorders|
|Decreased appetite||73 (34)||9 (4)|
|Tumor lysis syndrome †||13 (6)||12 (6)|
|Blood and Lymphatic System Disorders|
|Differentiation syndrome ‡||29 (14)||15 (7)|
|Noninfectious leukocytosis||26 (12)||12 (6)|
|Nervous System Disorders|
|Dysgeusia||25 (12)||0 (0)|
Other clinically significant adverse reactions occurring in ≤10% of patients included:
Changes in selected post-baseline laboratory values that were observed in patients with relapsed or refractory AML are shown in Table 3.
|IDHIFA (100 mg daily)
|Parameter *||All Grades|
|Total bilirubin increased||81||15|
IDHIFA may interfere with bilirubin metabolism through inhibition of UGT1A1 [see Clinical Pharmacology (12.3)]. Thirty-seven percent of patients (80/214) experienced total bilirubin elevations ≥2 × ULN at least one time. Of those patients who experienced total bilirubin elevations ≥2 × ULN, 35% had elevations within the first month of treatment, and 89% had no concomitant elevation of transaminases or other severe adverse events related to liver disorders. No patients required a dose reduction for hyperbilirubinemia; treatment was interrupted in 3.7% of patients, for a median of 6 days. Three patients (1.4%) discontinued IDHIFA permanently due to hyperbilirubinemia.
IDHIFA can induce myeloid proliferation resulting in a rapid increase in white blood cell count.
OATP1B1, OATP1B3, and BCRP Substrates
IDHIFA is an OATP1B1, OATP1B3, and BCRP inhibitor. Coadministration of IDHIFA increases the exposure of OATP1B1, OATP1B3, and BCRP substrates, which may increase the incidence and severity of adverse reactions of these substrates [see Clinical Pharmacology (12.3)]. Decrease the dosage of OATP1B1, OATP1B3, and BCRP substrate(s) as recommended in the respective prescribing information, and as clinically indicated.
Certain P-glycoprotein (P-gp) Substrates
IDHIFA is a P-gp inhibitor. Coadministration of IDHIFA increases the exposure of P-gp substrates, which may increase the incidence and severity of adverse reactions of these substrates [see Clinical Pharmacology (12.3)]. For a P-gp substrate where small concentration changes may lead to serious adverse reactions, decrease the dose or modify the dosing frequency of such a P-gp substrate and monitor for adverse reactions as recommended in the respective prescribing information.
Based on animal embryo-fetal toxicity studies, IDHIFA can cause fetal harm when administered to a pregnant woman. There are no available data on IDHIFA use in pregnant women to inform a drug-associated risk of major birth defects and miscarriage. In animal embryo-fetal toxicity studies, oral administration of enasidenib to pregnant rats and rabbits during organogenesis was associated with embryo-fetal mortality and alterations to growth starting at 0.1 times the steady state clinical exposure based on the AUC at the recommended human dose (see Data). Advise pregnant women of the potential risk to a fetus.
The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. 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.
Enasidenib administered to pregnant rats at a dose of 30 mg/kg twice daily during organogenesis (gestation days 6-17) was associated with maternal toxicity and adverse embryo-fetal effects including post-implantation loss, resorptions, decreased viable fetuses, lower fetal birth weights, and skeletal variations. These effects occurred in rats at approximately 1.6 times the clinical exposure at the recommended human daily dose of 100 mg/day.
In pregnant rabbits treated during organogenesis (gestation days 7-19), enasidenib was maternally toxic at doses equal to 5 mg/kg/day or higher (exposure approximately 0.1 to 0.6 times the steady state clinical exposure at the recommended daily dose) and caused spontaneous abortions at 5 mg/kg/day (exposure approximately 0.1 times the steady state clinical exposure at the recommended daily dose).
There are no data on the presence of enasidenib or its metabolites in human milk, the effects on the breastfed child, or the effects on milk production. Because of the potential for adverse reactions in the breastfed child, advise women not to breastfeed during treatment with IDHIFA and for at least 2 months after the last dose.
Based on animal embryo-fetal toxicity studies, IDHIFA can cause fetal harm when administered to a pregnant woman [see Use in Specific Populations (8.1)].
Verify pregnancy status in females of reproductive potential prior to starting IDHIFA.
Advise females of reproductive potential to use effective contraception during treatment with IDHIFA and for at least 2 months after the last dose. Coadministration of IDHIFA may increase or decrease the concentrations of combined hormonal contraceptives. The clinical significance of this potential drug interaction is unknown at this time.
Based on findings in animals, IDHIFA may impair fertility in females and males of reproductive potential. It is not known whether these effects on fertility are reversible [see Nonclinical Toxicology (13.1)].
No dosage adjustment is required for IDHIFA based on age. In the clinical study, 61% of 214 patients were aged 65 years or older, while 24% were older than 75 years. No overall differences in effectiveness or safety were observed between patients aged 65 years or older and younger patients.
Enasidenib is an inhibitor of isocitrate dehydrogenase-2 (IDH2) enzyme. Enasidenib is available as the mesylate salt with the chemical name:
2-Propanol, 2-methyl-1-[[4-[6-(trifluoromethyl)-2-pyridinyl]-6-[[2-(trifluoromethyl)-4-pyridinyl]amino-1,3,5-triazin-2-yl]amino]-, methanesulfonate (1:1).
The chemical structure is:
The empirical formula is C19H17F6N7O ∙ CH3SO3H (C20H21F6N7O4S), and the molecular weight is 569.48 g/mol. Enasidenib is practically insoluble (solubility ≤74 mcg/mL) in aqueous solutions across physiological pH range (pH 1.2 and 7.4).
IDHIFA (enasidenib) is available as a 50-mg tablet (equivalent to 60 mg enasidenib mesylate) and a 100-mg tablet (equivalent to 120 mg enasidenib mesylate) for oral administration. Each tablet contains inactive ingredients of colloidal silicon dioxide, hydroxypropyl cellulose, hypromellose acetate succinate, iron oxide yellow, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, sodium lauryl sulfate, sodium starch glycolate, talc, and titanium dioxide.
Enasidenib is a small molecule inhibitor of the isocitrate dehydrogenase 2 (IDH2) enzyme. Enasidenib targets the mutant IDH2 variants R140Q, R172S, and R172K at approximately 40-fold lower concentrations than the wild-type enzyme in vitro. Inhibition of the mutant IDH2 enzyme by enasidenib led to decreased 2-hydroxyglutarate (2-HG) levels and induced myeloid differentiation in vitro and in vivo in mouse xenograft models of IDH2 mutated AML. In blood samples from patients with AML with mutated IDH2, enasidenib decreased 2-HG levels, reduced blast counts and increased percentages of mature myeloid cells.
The peak plasma concentration (Cmax) is 1.4 mcg/mL [coefficient of variation (CV%) 50%] after a single dose of 100 mg, and 13.1 mcg/mL (CV% 45%) at steady state for 100 mg daily. The area under concentration time curve (AUC) of enasidenib increases in an approximately dose proportional manner from 50 mg (0.5 times approved recommended dosage) to 450 mg (4.5 times approved recommended dosage) daily dose. Steady-state plasma levels are reached within 29 days of once-daily dosing. Accumulation is approximately 10-fold when administered once daily.
The absolute bioavailability after 100 mg oral dose of enasidenib is approximately 57%. After a single oral dose, the median time to Cmax (Tmax) is 4 hours.
The mean volume of distribution (Vd) of enasidenib is 55.8 L (CV% 29). Human plasma protein binding of enasidenib is 98.5% and of its metabolite AGI-16903 is 96.6% in vitro.
Enasidenib has a terminal half-life of 7.9 days and a mean total body clearance (CL/F) of 0.70 L/hour (CV% 62.5).
Enasidenib accounted for 89% of the radioactivity in circulation and AGI-16903, the N-dealkylated metabolite, represented 10% of the circulating radioactivity.
Metabolism of enasidenib is mediated by multiple cytochrome P450 (CYP) enzymes (e.g., CYP1A2, CYP2B6, CYP2C8, CYP2C9, CYP2C19, CYP2D6, and CYP3A4), and by multiple UDP glucuronosyl transferases (UGTs) (e.g., UGT1A1, UGT1A3, UGT1A4, UGT1A9, UGT2B7, and UGT2B15) in vitro. Further metabolism of the metabolite AGI-16903 is also mediated by multiple enzymes (e.g., CYP1A2, CYP2C19, CYP3A4, UGT1A1, UGT1A3, and UGT1A9) in vitro.
No clinically meaningful effect on the pharmacokinetics of enasidenib was observed for the following covariates: age (19 years to 100 years), race (White, Black, or Asian), mild hepatic impairment [defined as total bilirubin ≤ upper limit of normal (ULN) and aspartate transaminase (AST) >ULN or total bilirubin 1 to 1.5 times ULN and any AST], renal impairment (defined as creatinine clearance ≥30 mL/min by Cockcroft-Gault formula), sex, body weight (39 kg to 136 kg), and body surface area.
Drug Interaction Studies
OATP1B1, OATP1B3, and BCRP Substrates: Coadministration of rosuvastatin 10 mg after multiple doses of IDHIFA 100 mg increased rosuvastatin Cmax by 366% and AUC0-INF by 244%.
In Vitro Studies
CYP and UGT Enzymes: Enasidenib inhibits CYP1A2, CYP2B6, CYP2C8, CYP2C9, CYP2C19, CYP2D6, CYP3A4, and UGT1A1. The metabolite AGI-16903 inhibits CYP1A2, CYP2B6, CYP2C8, CYP2C9, CYP2C19, and CYP2D6. Enasidenib induces CYP2B6 and CYP3A4.
Transporter Systems: Enasidenib is not a substrate for P-glycoprotein (P-gp) or breast cancer resistance protein (BCRP). AGI-16903 is a substrate of both P-gp and BCRP. Enasidenib and AGI-16903 are not substrates of multidrug resistance-associated protein 2 (MRP2), organic anion transporter 1 (OAT1), OAT3, organic anion transporter family member 1B1 (OATP1B1), OATP1B3, and organic cation transporter 2 (OCT2).
Enasidenib inhibits OAT1 and OCT2, but not MRP2 or OAT3. AGI-16903 inhibits BCRP, OAT1, OAT3, OATP1B1, and OCT2, but not P-gp, MRP2, or OATP1B3.
Coadministration of IDHIFA may increase or decrease the concentrations of combined hormonal contraceptives. The clinical significance of this potential drug interaction is unknown at this time.
Carcinogenicity studies have not been performed with enasidenib.
Enasidenib was not mutagenic in an in vitro bacterial reverse mutation (Ames) assay. Enasidenib was not clastogenic in an in vitro human lymphocyte chromosomal aberration assay, or in an in vivo rat bone marrow micronucleus assay.
Fertility studies in animals have not been conducted with enasidenib. In repeat-dose toxicity studies with twice daily oral administration of enasidenib in rats up to 90-days in duration, changes were reported in male and female reproductive organs including seminiferous tubular degeneration, hypospermia, atrophy of the seminal vesicle and prostate, decreased corpora lutea and increased atretic follicles in the ovaries, and atrophy in the uterus.
The efficacy of IDHIFA was evaluated in an open-label, single-arm, multicenter, two-cohort clinical trial (Study AG221-C-001, NCT01915498) of 199 adult patients with relapsed or refractory AML and an IDH2 mutation, who were assigned to receive 100 mg daily dose. Cohort 1 included 101 patients and Cohort 2 included 98 patients. IDH2 mutations were identified by a local diagnostic test and retrospectively confirmed by the Abbott RealTime IDH2 assay, or prospectively identified by the Abbott RealTime IDH2 assay, which is the FDA-approved test for selection of patients with AML for treatment with IDHIFA. IDHIFA was given orally at starting dose of 100 mg daily until disease progression or unacceptable toxicity. Dose reductions were allowed to manage adverse events.
The baseline demographic and disease characteristics are shown in Table 4. The baseline demographics and disease characteristics were similar in both study cohorts.
|Demographic and Disease Characteristics||IDHIFA (100 mg daily)
|ECOG PS: Eastern Cooperative Oncology Group Performance Status.|
|Age (Years) Median (Min, Max)||68 (19, 100)|
|Age Categories, n (%)|
|<65 years||76 (38)|
|≥65 years to <75 years||74 (37)|
|≥75 years||49 (25)|
|Sex, n (%)|
|Race, n (%)|
|Native Hawaiian/Other Pacific Islander||1 (1)|
|Other / Not Provided||34 (17)|
|Disease Characteristics, n (%)|
|ECOG PS *, n (%)|
|Relapsed AML, n (%)||95 (48)|
|Refractory AML, n (%)||104 (52)|
|IDH2 Mutation †, n (%)|
|Time from Initial AML Diagnosis (months)|
|Median (min, max) (172 patients)||11.3 (1.2, 129.1)|
|Cytogenetic Risk Status, n (%)|
|Missing /Failure||47 (24)|
|Prior Stem Cell Transplantation for AML, n (%)||25 (13)|
|Transfusion Dependent at Baseline ‡, n (%)||157 (79)|
|Number of Prior Anticancer Regimens, n (%) §|
|Median number of prior therapies (min, max)||2 (1, 6)|
Efficacy was established on the basis of the rate of complete response (CR)/complete response with partial hematologic recovery (CRh), the duration of CR/CRh, and the rate of conversion from transfusion dependence to transfusion independence. The efficacy results are shown in Table 5 and were similar in both cohorts. The median follow-up was 6.6 months (range, 0.4 to 27.7 months). Similar CR/CRh rates were observed in patients with either R140 or R172 mutation.
|Endpoint||IDHIFA (100 mg daily)
|CI: confidence interval, NA: not available.|
|CR* n (%)||37 (19)|
|95% CI||(13, 25)|
|Median DOR† (months)||8.2|
|95% CI||(4.7, 19.4)|
|CRh‡ n (%)||9 (4)|
|95% CI||(2, 8)|
|Median DOR (months)||9.6|
|95% CI||(0.7, NA)|
|CR/CRh n (%)||46 (23)|
|95% CI||(18, 30)|
|Median DOR (months)||8.2|
|95% CI||(4.3, 19.4)|
For patients who achieved a CR/CRh, the median time to first response was 1.9 months (range, 0.5 to 7.5 months) and the median time to best response of CR/CRh was 3.7 months (range, 0.6 to 11.2 months). Of the 46 patients who achieved a best response of CR/CRh, 39 (85%) did so within 6 months of initiating IDHIFA.
Among the 157 patients who were dependent on red blood cell (RBC) and/or platelet transfusions at baseline, 53 (34%) became independent of RBC and platelet transfusions during any 56-day post baseline period. Of the 42 patients who were independent of both RBC and platelet transfusions at baseline, 32 (76%) remained transfusion independent during any 56-day post baseline period.
50-mg tablet: Pale yellow to yellow oval-shaped film-coated tablet debossed "ENA" on one side and "50" on the other side.
100-mg tablet: Pale yellow to yellow capsule-shaped film-coated tablet debossed "ENA" on one side and "100" on the other side.
Advise the patient to read the FDA-approved patient labeling (Medication Guide).
Advise patients on the risks of developing differentiation syndrome as early as 1 day and during the first 5 months on treatment. Ask patients to immediately report any symptoms suggestive of differentiation syndrome, such as fever, cough or difficulty breathing, bone pain, rapid weight gain or swelling of their arms or legs, to their healthcare provider for further evaluation [see Boxed Warning and Warnings and Precautions (5.1)].
Tumor Lysis Syndrome
Advise patients on the risks of developing tumor lysis syndrome. Advise patients on the importance of maintaining high fluid intake and the need for frequent monitoring of blood chemistry values [see Dosage and Administration (2.3) and Adverse Reactions (6.1)].
Gastrointestinal Adverse Reactions
Advise patients on risk of experiencing gastrointestinal reactions, such as diarrhea, nausea, vomiting, decreased appetite, and changes in their sense of taste. Ask patients to report these reactions to their healthcare provider, and advise patients how to manage them [see Adverse Reactions (6.1)].
Elevated Blood Bilirubin
Inform patients that taking IDHIFA may cause elevated blood bilirubin, which is due to its mechanism of action, and not due to liver damage. Advise patients to report any changes to the color of their skin or the whites of their eyes to their healthcare provider for further evaluation [see Adverse Reactions (6.1)].
Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to notify their healthcare provider of a known or suspected pregnancy [see Warnings and Precautions (5.2), Use in Specific Populations (8.1)].
Advise females of reproductive potential to use effective contraception during treatment with IDHIFA and for at least 2 months after the last dose. Advise males with female partners of reproductive potential to use effective contraception during treatment with IDHIFA and for at least 2 months after the last dose. Coadministration of IDHIFA may increase or decrease the concentrations of combined hormonal contraceptives. The clinical significance of this potential drug interaction is unknown at this time [see Use in Specific Populations (8.3)].
Advise women not to breastfeed during treatment with IDHIFA and for at least 2 months after the last dose [see Use in Specific Populations (8.2)].
Advise patients to inform their healthcare providers of all concomitant products, including over-the-counter products and supplements [see Drug Interactions (7.1)].
Dosing and Storage Instructions
Manufactured for and marketed by:
Summit, NJ 07901
Cambridge, MA 02139
Trademarks are the property of their respective owners.
IDHIFA® is a registered trademark of Celgene Corporation.
© 2016-2020 Celgene Corporation
All Rights Reserved.
|This Medication Guide has been approved by the U.S. Food and Drug Administration||Revised: November 2020|
|What is the most important information I should know about IDHIFA?
IDHIFA may cause serious side effects, including:
|If you develop any of these symptoms of differentiation syndrome, your healthcare provider may start you on a medicine taken by mouth or given through a vein (intravenous) called corticosteroids and may monitor you in the hospital.|
|What is IDHIFA?
IDHIFA is a prescription medicine used to treat people with acute myeloid leukemia (AML) with an isocitrate dehydrogenase-2 (IDH2) mutation whose disease has come back or has not improved after previous treatment(s).
It is not known if IDHIFA is safe and effective in children.
|Before taking IDHIFA, tell your healthcare provider about all of your medical conditions, including if you:
|How should I take IDHIFA?
|What are the possible side effects of IDHIFA?
IDHIFA may cause serious side effects, including:
See "What is the most important information I should know about IDHIFA?"
The most common side effects of IDHIFA include:
|Tell your healthcare provider if you have any changes to the color of your skin or the whites of your eyes.
Your healthcare provider will monitor you for side effects during treatment and may tell you to stop taking IDHIFA if you develop certain side effects.
These are not all the possible side effects of IDHIFA.
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
|How should I store IDHIFA?
|General information about the safe and effective use of IDHIFA
Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not take IDHIFA for conditions for which it was not prescribed. Do not give IDHIFA to other people, even if they have the same symptoms you have. It may harm them. You can ask your pharmacist or healthcare provider for information about IDHIFA that is written for health professionals.
|What are the ingredients in IDHIFA?
Active ingredient: enasidenib
Inactive ingredients: colloidal silicon dioxide, hydroxypropyl cellulose, hypromellose acetate succinate, iron oxide yellow, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, sodium lauryl sulfate, sodium starch glycolate, talc, and titanium dioxide
Manufactured for and marketed by: Celgene Corporation, Summit, NJ 07901
Licensed from: Agios Pharmaceuticals, Cambridge, MA 02139
IDHIFA® is a registered trademark of Celgene Corporation.
IDHMG.004 © 2016-2020 Celgene Corporation
All rights reserved.
For more information go to www.IDHIFA.com or call 1-888-423-5436.
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enasidenib mesylate tablet, film coated
enasidenib mesylate tablet, film coated
|Labeler - Celgene Corporation (174201137)|