VANFLYTA QUIZARTINIB 26.5 mg Tablet, Film Coated, 28-count
🆔 Identity & classification
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🏷️ RxNorm drug class
This medicine belongs to the Kinase Inhibitor class.
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🏭 Manufacturer & labeler
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🩺 Clinical
Quizartinib is used with other chemotherapy drugs to treat a certain type of acute myeloid leukemia (AML; a type of cancer of the white blood cells). Quizartinib is in a class of medications called kinase inhibitors. It works by blocking the action of a certain naturally occurring substance that may be needed to help cancer cells multiply.
Read the full MedlinePlus article ↗Patient education
Supplement & herbal interactions
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💊 What it looks like
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🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
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UNII EX438O2MRT
Ferric oxide yellow is a naturally occurring iron compound used as a colorant in medications. It gives tablets, capsules, and other forms a yellow or golden hue for identification and appearance.
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UNII 1I96OHX6EK
A cyclic carbohydrate derived from plant starch that acts as a solubilizer and stabilizer. It helps dissolve poorly water-soluble drugs and protects active ingredients from degradation in the formulation.
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UNII 3NXW29V3WO
Hypromellose is a plant-based thickener made from cellulose. It's used in medicines as a binder to hold ingredients together, a coating for tablets, and a thickener for liquids.
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UNII 70097M6I30
Magnesium stearate is a salt made from magnesium and stearic acid, a fatty substance. It's used in tablets and capsules as a lubricant and glidant to help ingredients flow smoothly during manufacturing and prevent sticking.
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UNII OP1R32D61U
Microcrystalline cellulose is a purified form of cellulose, a natural fiber from plant sources. It acts as a binder and filler in tablets and capsules, helping hold ingredients together and give the medicine its shape and size.
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UNII 7SEV7J4R1U
A powder made from a naturally occurring mineral. In medicines, talc works as a glidant and anti-caking agent, helping tablets and capsules flow smoothly during manufacturing and preventing clumping.
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UNII 15FIX9V2JP
Titanium dioxide is a bright white mineral powder commonly used as a colorant and opacifying agent. It makes pills and tablets white or lighter in color and helps make coatings non-transparent.
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UNII XHX3C3X673
Triacetin is a clear, oily liquid made from glycerin and acetic acid. It works as a plasticizer and solvent in medicines, helping soften coatings and improve how liquids mix together in formulations.
8 inactive ingredients listed in the exact product block matched to this NDC.
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ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.Inactive ingredient FAQ
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💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per each | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | Not in the retail survey — common for institutional, discontinued, or low-volume packs. | |
| Medicaid paysCMS SDUD · 12 mo | $584.43 | $16,363.98 / 28 tablets |
| Medicare drug plans payPart D · Q2 2026 | $627.37 | $17,566.39 / 28 tablets |
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🔁 Therapeutic equivalents
| Product | Labeler | Pack | NADAC/unit | TE | Status | Price vs. this |
|---|---|---|---|---|---|---|
| Vanflyta 26.5 mgthis 65597-0511-28 | Daiichi | 28 tablets | — | — | FDA listed | — |
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⏳ Availability & generic status
We did not find an FDA-approved generic match for this exact strength, form and route. Patent/protection dates below may affect future generic timing.
Why the date isn’t exact: Generic timing can change because patents may be challenged, settled, licensed, added, removed, or worked around with a narrower label — and FDA approval does not always mean a pharmacy can get the generic today.
🛈 What do these terms mean?
- Patent
- Legal protection listed in the Orange Book that may delay generic approval or launch. Issued by the U.S. Patent & Trademark Office.
- Substance patent
- Covers the active drug molecule itself — the hardest to design around. A generic generally can’t launch until it expires.
- Formulation (product) patent
- Covers a specific formulation or dosage form. A generic can sometimes work around it with a different formulation.
- Method-of-use patent
- A patent covering one specific approved use of the drug — not necessarily the whole molecule. A generic can sometimes launch with a “skinny label” that carves out the protected use and keeps the others.
- Skinny label
- A generic label that omits a still-patented use when the FDA allows it — letting a generic reach the market for the unprotected uses.
- Exclusivity
- FDA-granted marketing protection, separate from patents — e.g. 5-yr new chemical entity, 7-yr orphan drug, or a +6-month pediatric extension.
- Paragraph IV
- A generic applicant’s formal challenge to a listed patent. It can potentially lead to earlier generic entry, but often involves litigation or a settlement.
- RLD / RS
- Reference Listed Drug — the brand product the FDA uses as the reference for generic applications. Reference Standard — the product the FDA expects generics to compare against in bioequivalence testing.
- TE / AB rating
- FDA therapeutic-equivalence rating. An AB rating generally means the FDA considers a generic therapeutically equivalent to — and substitutable for — the brand.
- LOE (loss of exclusivity)
- The latest patent or exclusivity currently listed — the loss-of-exclusivity / latest-listed-protection date shown on this page. Paragraph-IV challenges and settlements can move the real date earlier; FDA approval and a manufacturer’s decision to market can move it later.
Built from the FDA Orange Book. The bars above are scaled to each protection’s expiry; the red LOE marker is the last one to lapse.
| Patent | Type | Use code | Expires |
|---|---|---|---|
| US 9585892 ↗ | Method of use | U-3661 | Mar 16, 2027 |
| US 9585892 ↗ | Method of use | U-3661 | Mar 16, 2027 |
| US 9555040 ↗ | Method of use | U-3661 | May 14, 2030 |
| US 9555040 ↗ | Method of use | U-3661 | May 14, 2030 |
| US 8836218 ↗ | Method of use | U-3661 | Mar 23, 2030 |
| US 8836218 ↗ | Method of use | U-3661 | Mar 23, 2030 |
| US 8357690 ↗ | Method of use | U-3661 | Feb 26, 2031 |
| US 8357690 ↗ | Method of use | U-3661 | Feb 26, 2031 |
| US 8129374 ↗ | Method of use | U-3661 | Mar 16, 2027 |
| US 8129374 ↗ | Method of use | U-3661 | Mar 16, 2027 |
| US 7968543 ↗ | Method of use | U-3661 | Aug 15, 2029 |
| US 7968543 ↗ | Method of use | U-3661 | Aug 15, 2029 |
| US 8865710 ↗ | Drug product | — | Aug 15, 2029 |
| US 8865710 ↗ | Drug product | — | Aug 15, 2029 |
| US 8883783 ↗ | Drug substance | — | Mar 16, 2027 |
| US 9675549 ↗ | Drug product | — | Sep 30, 2033 |
| US 8557810 ↗ | Drug product | — | Mar 16, 2027 |
| US 7820657 ↗ | Drug substance | — | Sep 26, 2028 |
| US 7820657 ↗ | Drug substance | — | Sep 26, 2028 |
| US 8883783 ↗ | Drug substance | — | Mar 16, 2027 |
| US 8557810 ↗ | Drug product | — | Mar 16, 2027 |
| US 9675549 ↗ | Drug product | — | Sep 30, 2033 |
| Code | What it grants | Expires |
|---|---|---|
| NCE | New Chemical Entity (5-year) | Jul 20, 2028 |
| ODE-437 | Orphan Drug Exclusivity (7-year) | Jul 20, 2030 |
| NCE | New Chemical Entity (5-year) | Jul 20, 2028 |
| ODE-437 | Orphan Drug Exclusivity (7-year) | Jul 20, 2030 |
Is there a generic version of VANFLYTA 26.5 MG TABLET?
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🗺️ Medicaid utilization & spend
💊 Medicaid utilization by pack size
📊 Medicare Part D spend CMS · PART D · 2026 (Q1)
📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 65597-0511-04 | 1 BOTTLE in 1 CARTON (65597-511-04) / 14 TABLET, FILM COATED in 1 BOTTLE | 2023-07-20 | Active |
| 65597-0511-28 You're viewing this | 1 BOTTLE in 1 CARTON (65597-511-28) / 28 TABLET, FILM COATED in 1 BOTTLE | 2023-07-20 | Active |
Pack size FAQ
What quantity is in NDC 65597-0511-28?
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🧭 About this NDC listing & data coverage
What data is (and isn’t) available for this NDC — tap to expand
| NDC identity (package / product / labeler codes) | ✓ Available |
| Labeler | ✓ Available |
| Product & package description | ✓ Available |
| Marketing category & status | ✓ Available |
| Active ingredient / dosage form / route | ✓ Available |
| FDA label (SPL via DailyMed) | ✓ Available |
| Package photos | — Not published for this NDC No photo available yet for this listing. |
| Inactive ingredients (structured) | ✓ Available |
| NADAC pharmacy acquisition price (CMS) | — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey. |
| Orange Book / therapeutic-equivalence data | ✓ Available |
| HCPCS J-code billing crosswalk | — Not published for this NDC Most self-administered / retail products have no J-code — that is normal. |
| Medicaid utilization (CMS SDUD) | ✓ Available |
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📄 Full prescribing information FDA SPL
🚨 Boxed Warning ▾
WARNING: QT PROLONGATION, TORSADES DE POINTES, and CARDIAC ARREST VANFLYTA prolongs the QT interval in a dose- and concentration-related manner [see Clinical Pharmacology (12.2) ] . Prior to VANFLYTA administration and periodically, monitor for hypokalemia or hypomagnesemia, and correct deficiencies. Perform ECGs to monitor the QTc at baseline, weekly during induction and consolidation therapy, weekly for at least the first month of maintenance, and periodically thereafter [see Dosage and Administration (2.3) and Warnings and Precautions (5.1) ].
Torsades de pointes and cardiac arrest have occurred in patients receiving VANFLYTA. Do not administer VANFLYTA to patients with severe hypokalemia, severe hypomagnesemia, or long QT syndrome [see Contraindications (4) and Warnings and Precautions (5.1) ] . Do not initiate treatment with VANFLYTA or escalate the VANFLYTA dose if the QT interval corrected by Fridericia's formula (QTcF) is greater than 450 ms [see Dosage and Administration (2.3) and Warnings and Precautions (5.1) ] .
Monitor ECGs more frequently if concomitant use of drugs known to prolong the QT interval is required [see Dosage and Administration (2.3) and Warnings and Precautions (5.1) ] . Reduce the VANFLYTA dose when used concomitantly with strong CYP3A inhibitors, as they may increase quizartinib exposure [see Dosage and Administration (2.4) and Warnings and Precautions (5.1) ] . Because of the risk of QT prolongation, VANFLYTA is available only through a restricted program under a Risk Evaluation and Mitigation Strategy (REMS) called the VANFLYTA REMS [see Warnings and Precautions (5.2) ] .
WARNING: QT PROLONGATION, TORSADES DE POINTES, and CARDIAC ARREST See full prescribing information for complete boxed warning. VANFLYTA prolongs the QT interval. ( 12.2 ) Prior to VANFLYTA administration and periodically, perform electrocardiograms (ECGs), monitor for hypokalemia or hypomagnesemia, and correct deficiencies.
( 2.3 , 5.1 ) Torsades de pointes and cardiac arrest have occurred in patients receiving VANFLYTA. Do not administer VANFLYTA to patients with severe hypokalemia, severe hypomagnesemia, or long QT syndrome. ( 4 , 5.1 ) Do not initiate treatment with VANFLYTA or escalate the VANFLYTA dose if the QT interval corrected by Fridericia's formula (QTcF) is greater than 450 ms.
( 2.3 , 5.1 ) Monitor ECGs more frequently if concomitant use of drugs known to prolong the QT interval is required. ( 2.3 , 5.1 ) Reduce the VANFLYTA dose when used concomitantly with strong CYP3A inhibitors, as they may increase quizartinib exposure. ( 2.4 , 5.1 ) VANFLYTA is available only through a restricted program called the VANFLYTA Risk Evaluation and Mitigation Strategy (REMS).
( 5.2 )
🎯 Indications and Usage ▾
1 INDICATIONS AND USAGE VANFLYTA is indicated in combination with standard cytarabine and anthracycline induction and cytarabine consolidation, and as maintenance monotherapy following consolidation chemotherapy, for the treatment of adult patients with newly diagnosed acute myeloid leukemia (AML) that is FLT3 internal tandem duplication (ITD)-positive as detected by an FDA-approved test [see Dosage and Administration (2.1) and Clinical Studies (14) ] . VANFLYTA is a kinase inhibitor indicated in combination with standard cytarabine and anthracycline induction and cytarabine consolidation, and as maintenance monotherapy following consolidation chemotherapy, for the treatment of adult patients with newly diagnosed acute myeloid leukemia (AML) that is FLT3 internal tandem duplication (ITD)-positive as detected by an FDA-approved test.
( 1 ) Limitations of Use: VANFLYTA is not indicated as maintenance monotherapy following allogeneic hematopoietic stem cell transplantation (HSCT); improvement in overall survival with VANFLYTA in this setting has not been demonstrated. ( 1 ) Limitations of Use VANFLYTA is not indicated as maintenance monotherapy following allogeneic hematopoietic stem cell transplantation (HSCT); improvement in overall survival with VANFLYTA in this setting has not been demonstrated [see Clinical Studies (14) ] .
⏱️ Dosage and Administration ▾
2 DOSAGE AND ADMINISTRATION Take VANFLYTA tablets orally once daily with or without food at approximately the same time each day. ( 2.2 ) See Full Prescribing Information for recommended VANFLYTA dosage regimen and dosage modifications. ( 2.2 , 2.3 , 2.4 )
2.1Patient Selection Select patients for the treatment of AML with VANFLYTA based on the presence of FLT3-ITD mutation positivity [see Clinical Studies (14) ] . Information on FDA-approved tests for the detection of FLT3-ITD mutation in AML is available at: http://www.fda.gov/CompanionDiagnostics.
2.2Recommended Dosage A treatment course consists of up to 2 cycles of VANFLYTA in combination with induction cytarabine and anthracycline, up to 4 cycles of VANFLYTA in combination with high-dose cytarabine consolidation, and up to 36 cycles of VANFLYTA as maintenance therapy [see Clinical Studies (14) ] or until disease progression or unacceptable toxicity. VANFLYTA maintenance therapy should be initiated following consolidation chemotherapy upon blood count recovery of absolute neutrophil count >500/mm 3 and platelet count >50,000/mm 3 .
See Table 1 for the recommended dosage of VANFLYTA by phase of therapy . Table 1: VANFLYTA Dosage Regimen VANFLYTA Initiation Induction Patients can receive up to 2 cycles of induction. Consolidation Patients can receive up to 4 cycles of consolidation.
Maintenance Starting on Day 8 (for 7 + 3 regimen) For 5 + 2 regimen as the second induction cycle, VANFLYTA will be given on Days 6 to 19. Starting on Day 6 Starting on Day 1 Dose 35.4 mg orally once daily 35.4 mg orally once daily Administer 26.5 mg orally once daily Days 1 through 14 of the first cycle if QTcF is less than or equal to 450 ms. Increase the dose to 53 mg once daily on Day 15 of the first cycle if QTcF is less than or equal to 450 ms.
Maintain the 26.5 mg once daily dose if QTcF greater than 500 ms was observed during induction or consolidation. Duration (28-day cycles) Two weeks in each cycle (Days 8 to 21) Two weeks in each cycle (Days 6 to 19) Once daily with no break between cycles for up to 36 cycles For patients who proceed to hematopoietic stem cell transplantation (HSCT), VANFLYTA should be stopped 7 days before the start of a conditioning regimen. Administer VANFLYTA orally with or without food at approximately the same time each day.
Swallow tablets whole. Do not cut, crush, or chew the tablets. If a dose of VANFLYTA is vomited, do not administer a replacement dose; wait until the next scheduled dose is due.
If a dose of VANFLYTA is missed or not taken at the usual time, administer the dose as soon as possible on the same day and return to the usual schedule the following day. The patient should not take two doses on the same day.
2.3Monitoring and Dosage Modifications for Adverse Reactions Initiate VANFLYTA only if QTcF is less than or equal to 450 ms [see Warnings and Precautions (5.1) ]. During induction and consolidation, perform ECGs prior to initiation and then once weekly during VANFLYTA treatment or more frequently as clinically indicated [see Warnings and Precautions (5.1) ]. During maintenance, perform ECGs prior to initiation, once weekly for at least the first month following dose initiation and escalation, and thereafter as clinically indicated.
Escalate the dose only if QTcF is less than or equal to 450 ms [see Dosage and Administration (2.2) and Warnings and Precautions (5.1) ]. Correct electrolyte abnormalities (hypokalemia and hypomagnesemia), and if possible, avoid concomitant administration of drugs that prolong the QT interval [see Warnings and Precautions (5.1) ]. For recommended dosage modifications due to adverse reactions, see Table 2 .
For dosage adjustments due to adverse reactions, see Table 3 . Table 2: Recommended Dosage Modifications for Adverse Reactions [see Warnings and Precautions (5.1) and Adverse Reactions (6.1) ] Adverse Reaction Recommended Action Grades are in accordance with National Cancer Institute Common Terminology Criteria…
💊 Dosage Forms and Strengths ▾
3 DOSAGE FORMS AND STRENGTHS Tablets: 17.7 mg quizartinib, white, round, film-coated, debossed with "DSC511" 26.5 mg quizartinib, yellow, round, film-coated, debossed with "DSC512" Tablets: 17.7 mg or 26.5 mg of quizartinib. ( 3 )
⛔ Contraindications ▾
4 CONTRAINDICATIONS VANFLYTA is contraindicated in patients with severe hypokalemia, severe hypomagnesemia, long QT syndrome, or in patients with a history of ventricular arrhythmias or torsades de pointes [see Warnings and Precautions (5.1) ]. Contraindicated in patients with severe hypokalemia, severe hypomagnesemia, long QT syndrome, or in patients with a history of ventricular arrhythmias or torsades de pointes. ( 4 , 5.1 )
⚠️ Warnings and Cautions ▾
5 WARNINGS AND PRECAUTIONS QT Prolongation, Torsades de Pointes, and Cardiac Arrest: Monitor electrocardiograms and levels of serum electrolytes. Reduce, interrupt, or permanently discontinue VANFLYTA as appropriate. ( 2.3 , 5.1 ) Embryo-Fetal Toxicity: VANFLYTA can cause fetal harm.
Advise females of reproductive potential and males with female partners of reproductive potential of potential risk to a fetus and to use effective contraception. ( 5.3 , 8.1 , 8.3 )
5.1QT Prolongation, Torsades de Pointes, and Cardiac Arrest VANFLYTA prolongs the QT interval in a dose- and concentration-dependent manner. The mechanism of QTc interval prolongation is via inhibition of the slow delayed rectifier potassium current, I Ks , as compared to all other medications that prolong the QTc interval, which is via the rapid delayed rectifier potassium current, I Kr . Therefore, the level of QTc prolongation with VANFLYTA that predicts the risk of cardiac arrhythmias is unclear.
Inhibition of I Ks and I Kr may leave patients with limited reserve leading to a higher risk of QT prolongation and serious cardiac arrhythmias, including fatal outcomes [see Clinical Pharmacology (12.2) ] . Torsades de pointes, ventricular fibrillation, cardiac arrest, and sudden death have occurred in patients treated with VANFLYTA. Of the 1,081 patients with AML treated with VANFLYTA in clinical trials, torsades de pointes occurred in approximately 0.2% of patients, cardiac arrest occurred in 0.6%, including 0.4% with a fatal outcome, and 0.1% of patients experienced ventricular fibrillation [see Adverse Reactions (6.1) ] .
These severe cardiac arrhythmias occurred predominantly during the induction phase. Of the 265 patients with newly diagnosed FLT3-ITD-positive AML treated with VANFLYTA in combination with chemotherapy in the clinical trial, 2.3% were found to have a QTcF greater than 500 ms and 10% of patients had an increase from baseline QTcF greater than 60 ms. The clinical trial excluded patients with a QTcF ≥450 ms or other factors that increased the risk of QT prolongation or arrhythmic events (e.g., NYHA Class III or IV congestive heart failure, hypokalemia, family history of long QT interval syndrome).
Therefore, avoid use in patients who are at significant risk of developing torsades de pointes, including uncontrolled or significant cardiac disease, recent myocardial infarction, heart failure, unstable angina, bradyarrhythmias, tachyarrhythmias, uncontrolled hypertension, high-degree atrioventricular block, severe aortic stenosis, or uncontrolled hypothyroidism. Do not initiate treatment with VANFLYTA if the QTcF interval is greater than 450 ms. Do not use VANFLYTA in patients with severe hypokalemia, severe hypomagnesemia, long QT syndrome, or in patients with a history of ventricular arrhythmias or torsades de pointes [see Contraindications (4) ] .
Perform an ECG and correct electrolyte abnormalities prior to initiation of treatment with VANFLYTA. During induction and consolidation, perform an ECG prior to initiation and then once weekly during VANFLYTA treatment or more frequently as clinically indicated. During maintenance, perform ECGs prior to initiation, once weekly for at least the first month following dose initiation and escalation, and as clinically indicated thereafter.
Do not escalate the dose if QTcF is greater than 450 ms [see Dosage and Administration (2.3) ] . Perform ECG monitoring of the QT interval more frequently in patients who are at significant risk of developing QT interval prolongation and torsades de pointes, or following dose escalation. Monitor and correct hypokalemia and hypomagnesemia prior to and during treatment with VANFLYTA.
Maintain electrolytes in the normal range. Monitor electrolytes and ECGs more frequently in patients who experience diarrhea or vomiting. Monitor patients more frequently with ECGs if coadministration of VANFLYTA with drugs known to prolong the QT interval is required [see Drug Interactions (7) ] .
R…
🤒 Adverse Reactions ▾
6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: QT Prolongation, Torsades de Pointes, and Cardiac Arrest [see Warnings and Precautions (5.1) ] The most common (>20%) adverse reactions, including laboratory abnormalities, are lymphocytes decreased, potassium decreased, albumin decreased, phosphorus decreased, alkaline phosphatase increased, magnesium decreased, febrile neutropenia, diarrhea, mucositis, nausea, calcium decreased, abdominal pain, sepsis, neutropenia, headache, creatine phosphokinase increased, vomiting, and upper respiratory tract infection.
( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Daiichi Sankyo, Inc. at 1-877-437-7763 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
6.1Clinical 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. Newly Diagnosed FLT3-ITD positive AML The safety of VANFLYTA (35.4 mg orally once daily with chemotherapy, 26.5 mg to 53 mg orally once daily as maintenance) in adult patients with newly diagnosed FLT3-ITD positive AML is based on QuANTUM-First, a randomized, double-blind clinical trial of VANFLYTA (n=265) or placebo (n=268) with chemotherapy [see Clinical Studies (14) ] .
Among patients who received VANFLYTA, 38% were exposed for 6 months or longer and 30% were exposed for greater than one year. On the VANFLYTA plus chemotherapy arm, 65% and 44% of patients completed induction and consolidation therapy, respectively, compared to 65% and 34% of patients in the placebo plus chemotherapy arm. Serious adverse reactions in ≥5% of patients who received VANFLYTA plus chemotherapy were: febrile neutropenia (11%).
Fatal adverse reactions occurred in 10% of patients who received VANFLYTA plus chemotherapy, including sepsis (5%), fungal infections (0.8%), brain edema (0.8%), and one case each of febrile neutropenia, pneumonia, cerebral infarction, acute respiratory distress syndrome, pulmonary embolism, ventricular dysfunction, and cardiac arrest. Permanent discontinuation due to an adverse reaction in patients in the VANFLYTA plus chemotherapy arm occurred in 20% of patients. The most frequent (≥2%) adverse reaction which resulted in permanent discontinuation in the VANFLYTA arm was sepsis (5%).
Dosage interruptions of VANFLYTA due to an adverse reaction occurred in 34% of patients. Adverse reactions which required dosage interruption in ≥2% of patients in the VANFLYTA arm included neutropenia (11%), thrombocytopenia (5%), and myelosuppression (3%). Dose reductions of VANFLYTA due to an adverse reaction occurred in 19% of patients.
Adverse reactions which required dosage reductions in ≥2% of patients in the VANFLYTA arm were neutropenia (9%), thrombocytopenia (5%), and electrocardiogram QT prolonged (4%). The most common adverse reactions (≥10% with a difference between arms of ≥2% compared to placebo), including laboratory abnormalities, were lymphocytes decreased, potassium decreased, albumin decreased, phosphorus decreased, alkaline phosphatase increased, magnesium decreased, febrile neutropenia, diarrhea, mucositis, nausea, calcium decreased, abdominal pain, sepsis, neutropenia, headache, creatine phosphokinase increased, vomiting, upper respiratory tract infections, hypertransaminasemia, thrombocytopenia, decreased appetite, fungal infections, epistaxis, potassium increased, herpesvirus infections, insomnia, electrocardiogram QT prolonged, magnesium increased, sodium increased, dyspepsia, anemia, and eye irritation.
Tables 5 and 6 summarize adverse reactions and laboratory abnormalities observed in patients receiving VANFLYTA in the clinical trial. Table 5: Adverse Reactions (≥10%) in Patients with Newly Diagnosed FLT3-ITD positive AML Who Received VANFLYTA (with a Difference Betwee…
🔄 Drug Interactions ▾
7 DRUG INTERACTIONS Table 7: Effect of Other Drugs on VANFLYTA Strong CYP3A Inhibitors Clinical Impact VANFLYTA is a CYP3A substrate. Concomitant use of VANFLYTA with a strong CYP3A inhibitor increases quizartinib systemic exposure [see Clinical Pharmacology (12.3) ] , which may increase the risk of VANFLYTA adverse reactions. Prevention or Management Reduce the dosage of VANFLYTA [see Dosage and Administration (2.4) ].
Strong or Moderate CYP3A Inducers Clinical Impact Concomitant use of VANFLYTA with strong or moderate CYP3A inducers decreases quizartinib systemic exposure [see Clinical Pharmacology (12.3) ] , which may reduce VANFLYTA efficacy. Prevention or Management Avoid concomitant use of VANFLYTA with strong or moderate CYP3A inducers [see Clinical Pharmacology (12.3) ] . QT Interval Prolonging Drugs Clinical Impact VANFLYTA prolongs the QT/QTc interval.
Coadministration of VANFLYTA with other drugs that prolong the QT interval may further increase the incidence of QT prolongation [see Warnings and Precautions (5.1) and Clinical Pharmacology (12.2) ] . Prevention or Management Monitor patients more frequently with ECG if co-administration of VANFLYTA with drugs known to prolong the QT interval is required. Examples of QT prolonging drugs include but are not limited to antifungal azoles, ondansetron, granisetron, azithromycin, pentamidine, doxycycline, moxifloxacin, atovaquone, prochlorperazine, and tacrolimus.
Breast Cancer Resistant Protein (BCRP) Substrates Clinical Impact Concomitant use of VANFLYTA with BCRP substrates may increase the risk of BCRP substrate-associated adverse reactions [see Clinical Pharmacology (12.3) ] . Prevention or Management Avoid concomitant use of VANFLYTA with drugs that are BCRP substrates where possible. If concomitant use is unavoidable, monitor patients more frequently for BCRP substrate-associated adverse reactions and decrease the BCRP substrates dosage(s) in accordance with the respective Prescribing Information.
Strong CYP3A Inhibitors: Reduce the VANFLYTA dose. ( 2.4 , 7 ) Strong or Moderate CYP3A Inducers: Avoid concomitant use. ( 7 , 12.3 ) Breast Cancer Resistant Protein (BCRP) substrates: Avoid concomitant use.
( 7 , 12.3 )
👥 Use in Specific Populations ▾
8 USE IN SPECIFIC POPULATIONS Lactation: Advise not to breastfeed. ( 8.2 )
8.1Pregnancy Risk Summary Based on findings from animal studies and its mechanism of action, VANFLYTA can cause embryo-fetal harm when administered to a pregnant woman [see Clinical Pharmacology (12.1) ] . There are no available data on VANFLYTA use in pregnant women to evaluate for a drug-associated risk. In animal reproduction studies, oral administration of quizartinib to pregnant rats during organogenesis resulted in adverse developmental outcomes including structural abnormalities and alterations to growth at maternal exposures approximately 3 times those in patients at the maximum recommended human dose (MRHD) of 53 mg/day ( see Data ).
Advise pregnant women of the potential risk to a fetus. The background risk in the U.S. general population of major birth defects is 2-4%, and of miscarriage is 15-20% of clinically recognized pregnancies. Data Animal Data In an embryo-fetal development study in rats, pregnant animals received oral doses of quizartinib of 0, 0.6, 2, or 6 mg/kg/day during the period of organogenesis.
Administration of quizartinib at the dose of 6 mg/kg/day was associated with adverse developmental outcomes including structural abnormalities (anasarca and edema) and alterations to growth (lower fetal weights and effects on skeletal ossification). At this dose, the maternal systemic exposures (AUC) were approximately 3 times the human exposure at the MRHD of 53 mg/day.
8.2Lactation Risk Summary There are no data on the presence of quizartinib or its metabolites in human milk, or the effects on the breastfed child or milk production. Because of the potential for serious adverse reactions in a breastfed child, advise women not to breastfeed during treatment with VANFLYTA and for one month after the last dose.
8.3Females and Males of Reproductive Potential VANFLYTA can cause embryo-fetal harm when administered to pregnant women [see Use in Specific Populations (8.1) ] . Pregnancy Testing Verify pregnancy status in females of reproductive potential within seven days before starting treatment with VANFLYTA. Contraception Females Advise female patients of reproductive potential to use effective contraception during treatment with VANFLYTA and for 7 months after the last dose.
Males Based on genotoxicity findings, advise male patients with female partners of reproductive potential to use effective contraception during treatment with VANFLYTA and for 4 months after the last dose [see Nonclinical Toxicology (13.1) ] . Infertility Females Based on findings from animal studies, VANFLYTA may impair female fertility. These effects on fertility were reversible [see Nonclinical Toxicology (13.1) ] .
Males Based on findings from animal studies, VANFLYTA may impair male fertility. These effects on fertility were reversible [see Nonclinical Toxicology (13.1) ].
8.4Pediatric Use Safety and effectiveness of VANFLYTA have not been established in pediatric patients.
8.5Geriatric Use There were 533 patients with newly diagnosed AML in the clinical study; of the total number of VANFLYTA-treated patients, 69 (26%) were 65 years of age and older, while 1 (0.4%) was 75 years of age [see Clinical Studies (14) ] . No overall differences in safety or efficacy were observed between patients 65 years of age and older and younger adult patients.
8.6Renal Impairment No dosage adjustment is recommended in patients with mild to moderate renal impairment (i.e., estimated creatinine clearance [CLcr] by Cockcroft-Gault equation: CLcr 30 to 89 mL/min). VANFLYTA has not been studied in patients with severe renal impairment (CLcr <30 mL/min) [see Clinical Pharmacology (12.3) ] .
8.7Hepatic Impairment No dosage adjustment is recommended in patients with mild hepatic impairment (Child-Pugh Class A or total bilirubin ≤ upper limit of normal [ULN] and aspartate aminotransferase [AST] >ULN, or total bilirubin >1 to 1.5 times ULN and any value for AST) or moderate hepatic im…
🤰 Pregnancy ▾
8.1Pregnancy Risk Summary Based on findings from animal studies and its mechanism of action, VANFLYTA can cause embryo-fetal harm when administered to a pregnant woman [see Clinical Pharmacology (12.1) ] . There are no available data on VANFLYTA use in pregnant women to evaluate for a drug-associated risk. In animal reproduction studies, oral administration of quizartinib to pregnant rats during organogenesis resulted in adverse developmental outcomes including structural abnormalities and alterations to growth at maternal exposures approximately 3 times those in patients at the maximum recommended human dose (MRHD) of 53 mg/day ( see Data ).
Advise pregnant women of the potential risk to a fetus. The background risk in the U.S. general population of major birth defects is 2-4%, and of miscarriage is 15-20% of clinically recognized pregnancies. Data Animal Data In an embryo-fetal development study in rats, pregnant animals received oral doses of quizartinib of 0, 0.6, 2, or 6 mg/kg/day during the period of organogenesis.
Administration of quizartinib at the dose of 6 mg/kg/day was associated with adverse developmental outcomes including structural abnormalities (anasarca and edema) and alterations to growth (lower fetal weights and effects on skeletal ossification). At this dose, the maternal systemic exposures (AUC) were approximately 3 times the human exposure at the MRHD of 53 mg/day.
🧒 Pediatric Use ▾
8.4Pediatric Use Safety and effectiveness of VANFLYTA have not been established in pediatric patients.
🧓 Geriatric Use ▾
8.5Geriatric Use There were 533 patients with newly diagnosed AML in the clinical study; of the total number of VANFLYTA-treated patients, 69 (26%) were 65 years of age and older, while 1 (0.4%) was 75 years of age [see Clinical Studies (14) ] . No overall differences in safety or efficacy were observed between patients 65 years of age and older and younger adult patients.
🧬 Clinical Pharmacology ▾
12 CLINICAL PHARMACOLOGY
12.1Mechanism of Action Quizartinib is a small molecule inhibitor of the receptor tyrosine kinase FLT3. Quizartinib and its major active metabolite AC886 bind to the adenosine triphosphate (ATP) binding domain of FLT3 with comparable affinity, and both had 10-fold lower affinity towards FLT3-ITD mutation compared to FLT3 in a binding assay. Quizartinib and AC886 inhibited FLT3 kinase activity, preventing autophosphorylation of the receptor, thereby inhibiting downstream FLT3 receptor signaling and blocking FLT3-ITD-dependent cell proliferation.
Quizartinib showed antitumor activity in a mouse model of FLT3-ITD-dependent leukemia.
12.2Pharmacodynamics The exposure-response relationship and time course of pharmacodynamic response for the safety and effectiveness of quizartinib have not been fully characterized. Cardiac Electrophysiology In vitro studies have shown that quizartinib is a predominant inhibitor of the slow delayed rectifier potassium current, I Ks . The exposure-response analysis predicted a concentration-dependent QTcF interval median prolongation of 18 and 24 ms [upper bound of 2-sided 90% confidence interval (CI): 21 and 27 ms] at the median steady-state C max of quizartinib at the 26.5 mg and 53 mg dose level during maintenance therapy [see Warnings and Precautions (5.1) and Drug Interactions (7) ] .
12.3Pharmacokinetics The pharmacokinetics of quizartinib and its major circulating active metabolite (AC886) were characterized in healthy subjects and in patients with cancer and are presented as geometric mean (percent coefficient of variation [%CV]) unless otherwise specified. Steady state quizartinib concentrations were achieved at Day 15 following once daily dosage in patients with AML. Quizartinib exposure (AUC and C max ) increased proportionally in the dose range of 26.5 mg (0.75 times the recommended 35.4 mg induction dose) to 79.5 mg (2.25 times the recommended 35.4 mg induction dose) in healthy subjects and 17.7 mg (0.5 times the recommended 35.4 mg induction dose) to 53 mg (1.5 times the recommended 35.4 mg induction dose) in patients with AML.
Table 8: Pharmacokinetic Properties of Quizartinib and AC886 Quizartinib AC886 General Information Steady state exposure following 35.4 mg VANFLYTA once daily during induction therapy in patients with newly diagnosed AML C max 140 ng/mL (71%) 163 ng/mL (52%) AUC 0-24h 2,680 ng∙h/mL (85%) 3,590 ng∙h/mL (51%) Steady state exposure following 35.4 mg VANFLYTA once daily during consolidation therapy in patients with newly diagnosed AML C max 204 ng/mL (64%) 172 ng/mL (47%) AUC 0-24h 3,930 ng∙h/mL (78%) 3,800 ng∙h/mL (46%) Steady state exposure following 53 mg VANFLYTA once daily during maintenance therapy in patients with newly diagnosed AML C max 529 ng/mL (60%) 262 ng/mL (48%) AUC 0-24h 10,200 ng∙h/mL (75%) 5,790 ng∙h/mL (46%) Accumulation ratio Mean (±SD) (AUC 0-24h ) 5.4 (4.4) 8.7 (6.8) Absorption The mean (SD) absolute bioavailability of quizartinib from the tablet formulation was 71% (±7%) in healthy subjects.
After oral administration under fasted conditions, time to peak concentration (median T max ) of quizartinib and AC886 measured post dose was approximately 4 hours (range 2 to 8 hours) and 5 to 6 hours (range 4 to 120 hours), respectively, in healthy subjects. No clinically significant differences in the pharmacokinetics of quizartinib were observed when administered with a high-fat, high-calorie meal. Distribution Volume of distribution at steady state in healthy subjects was estimated to be 275 L (17%).
In vitro plasma protein binding of quizartinib and AC886 is 99% or greater. In vitro blood-to-plasma ratio for quizartinib and AC886 ranges from 0.79-1.30 and 1.36-3.19, respectively. Elimination Total body clearance of quizartinib in healthy subjects was estimated to be
2.23L/hour (29%). The mean (SD) effective half-lives (t 1/2 ) in patients with newly diagnosed AML for quizartinib and AC886 during maintenance therapy are 81…
🧬 Mechanism of Action ▾
12.1Mechanism of Action Quizartinib is a small molecule inhibitor of the receptor tyrosine kinase FLT3. Quizartinib and its major active metabolite AC886 bind to the adenosine triphosphate (ATP) binding domain of FLT3 with comparable affinity, and both had 10-fold lower affinity towards FLT3-ITD mutation compared to FLT3 in a binding assay. Quizartinib and AC886 inhibited FLT3 kinase activity, preventing autophosphorylation of the receptor, thereby inhibiting downstream FLT3 receptor signaling and blocking FLT3-ITD-dependent cell proliferation.
Quizartinib showed antitumor activity in a mouse model of FLT3-ITD-dependent leukemia.
📦 How Supplied / Storage and Handling ▾
16 HOW SUPPLIED/STORAGE AND HANDLING VANFLYTA (quizartinib) is supplied as round, film-coated tablets, packaged in bottles with a child-resistant closure. Store at 20°C to 25°C (68°F to 77°F); excursions permitted from 15°C to 30°C (59°F to 86°F) [See USP Controlled Room Temperature]. Tablet Strength Tablet Description Package Configuration NDC 17.7 mg White, round, film-coated, debossed with "DSC511" , 28-count bottle 65597-504-28 14-count bottle 65597-504-04 26.5 mg Yellow, round, film-coated, debossed with "DSC512" 28-count bottle 65597-511-28 14-count bottle 65597-511-04
📦 Storage and Handling ▾
Store at 20°C to 25°C (68°F to 77°F); excursions permitted from 15°C to 30°C (59°F to 86°F) [See USP Controlled Room Temperature]. Tablet Strength Tablet Description Package Configuration NDC 17.7 mg White, round, film-coated, debossed with "DSC511" , 28-count bottle 65597-504-28 14-count bottle 65597-504-04 26.5 mg Yellow, round, film-coated, debossed with "DSC512" 28-count bottle 65597-511-28 14-count bottle 65597-511-04
📋 Description ▾
11 DESCRIPTION VANFLYTA (quizartinib) is a kinase inhibitor for oral use. The chemical name of quizartinib dihydrochloride is N -(5- tert -butyl-isoxazol-3-yl)- N '-{4-[7-(2-(morpholin-4-ylethoxy)imidazo[2,1- b ][1,3]benzothiazol-2-yl]phenyl}urea dihydrochloride. Quizartinib dihydrochloride is a white to off-white solid with a molecular formula of C 29 H 32 N 6 O 4 S∙2 HCl and a molecular weight of 633.6 for the salt and 560.7 for the free base.
The aqueous solubility of quizartinib dihydrochloride (pKa 4.75 and 3.16) decreases with increasing pH. It is very slightly soluble in aqueous media at pH 1 and practically insoluble or insoluble at pH 2 and higher. Quizartinib dihydrochloride is very slightly soluble in ethanol.
The chemical structure of quizartinib dihydrochloride is: VANFLYTA is supplied as film-coated tablets containing 20 mg and 30 mg quizartinib dihydrochloride equivalent to 17.7 mg or 26.5 mg of quizartinib, respectively. The inactive ingredients in the tablet core are hydroxypropyl betadex, magnesium stearate, and microcrystalline cellulose. The tablet coating consists of hypromellose, talc, titanium dioxide, and triacetin.
The 26.5 mg tablet coating also contains ferric oxide. Chemical Structure
💬 Information for Patients ▾
17 PATIENT COUNSELING INFORMATION Advise the patient to read the FDA-approved patient labeling (Medication Guide). QT Prolongation, Torsades de Pointes, and Cardiac Arrest Inform patients of symptoms that may be associated with significant QTc interval prolongation including dizziness, lightheadedness, and fainting. Advise patients to report these symptoms and the use of all medications to their healthcare provider [see Warnings and Precautions (5.1) ].
VANFLYTA REMS VANFLYTA is available only through a restricted program called the VANFLYTA REMS. Inform patients that they will be given a VANFLYTA Patient Wallet Card that they should carry with them at all times and show to all of their healthcare providers. This card describes signs and symptoms related to QT prolongation/cardiac arrhythmia which, if experienced, should prompt the patient to immediately seek medical attention [see Warnings and Precautions (5.2) ] .
Drug Interactions Advise patients to inform their healthcare providers of all concomitant medications, including over-the-counter medications, vitamins, and herbal products. Advise patients to avoid concomitant use of St. John's wort as it is a strong CYP3A inducer [see Drug Interactions (7) ].
Embryo-Fetal Toxicity and Use of Contraceptives Advise pregnant women of the potential risk to the fetus. Advise female patients of reproductive potential to use effective contraception during treatment with VANFLYTA and for 7 months after the last dose. Advise patients to notify their healthcare provider immediately in the event of a pregnancy or if pregnancy is suspected during VANFLYTA treatment.
Advise male patients with female partners of reproductive potential to use effective contraception during treatment with VANFLYTA and for 4 months after the last dose [see Warnings and Precautions (5.3) and Use in Specific Populations (8.1 , 8.3) ]. Infertility Advise females and males of reproductive potential that VANFLYTA may impair fertility [see Use in Specific Populations (8.3) and Nonclinical Toxicology (13.1) ] . Lactation Advise women not to breastfeed during treatment with VANFLYTA and for one month after the last dose [see Use in Specific Populations (8.2) ].
Dosing and Storage Instructions Advise patients that VANFLYTA should be taken once daily at approximately the same time each day and may be taken with or without food. Advise patients to swallow tablets whole. Advise patients not to cut, crush, or chew the tablets [see Dosage and Administration (2.2) ].
Instruct patients that if a dose of VANFLYTA is vomited, not to take an additional dose that day, and to wait until the next scheduled dose on the following day. If a dose of VANFLYTA is missed or not taken at the usual time, instruct patients to take the dose as soon as possible on the same day and return to the usual dosing schedule the following day. Store VANFLYTA at room temperature from 20°C to 25°C (68°F to 77°F).
💬 Medication Guide ▾
MEDICATION GUIDE VANFLYTA (van-FLITT-ah) (quizartinib) tablets This Medication Guide has been approved by the U.S. Food and Drug Administration. Issued: 7/2023 What is the most important information I should know about VANFLYTA?
VANFLYTA may cause serious side effects, including: Changes in the electrical activity of your heart called QT prolongation, torsades de pointes, and your heart stopping (cardiac arrest). QT prolongation can cause irregular heartbeats that can be life-threatening or lead to death. Your healthcare provider will check the electrical activity of your heart with a test called an electrocardiogram (ECG) and will also do blood tests to check your potassium and magnesium levels before and during treatment with VANFLYTA.
Tell your healthcare provider right away if you have an irregular heartbeat or feel dizzy, lightheaded, or faint, or have diarrhea or vomiting. VANFLYTA is available only through a restricted program called the VANFLYTA Risk Evaluation and Mitigation Strategy (REMS) due to the risk of QT prolongation, torsades de pointes, and cardiac arrest. You will receive a VANFLYTA Patient Wallet Card from your healthcare provider.
Carry the VANFLYTA Patient Wallet Card with you at all times and show it to all of your healthcare providers. The VANFLYTA Patient Wallet Card lists signs and symptoms of QT prolongation and torsades de pointes. Get medical help right away if you develop any of the signs and symptoms listed on the VANFLYTA Patient Wallet Card.
You may need to be treated in a hospital. See " What are the possible side effects of VANFLYTA? " for more information about side effects. What is VANFLYTA?
VANFLYTA is a prescription medicine used in combination with certain chemotherapy medicines and alone as maintenance therapy to treat adults with newly diagnosed acute myeloid leukemia (AML) with a FLT3-ITD mutation. Your healthcare provider will perform a test to make sure that VANFLYTA is right for you. VANFLYTA is not for use alone as maintenance therapy after a hematopoietic stem cell transplant.
It is not known if VANFLYTA is safe and effective in children. Do not take VANFLYTA if you have very low potassium, very low magnesium, long QT syndrome, or a history of ventricular arrhythmias or torsades de pointes. Before you take VANFLYTA, tell your healthcare provider about all of your medical conditions, including if you: have any heart problems. have low blood levels of potassium or magnesium. are pregnant or plan to become pregnant.
VANFLYTA can harm your unborn baby. Tell your healthcare provider right away if you become pregnant or think you may be pregnant during treatment with VANFLYTA. If you are able to become pregnant, your healthcare provider will perform a pregnancy test within 7 days before you start treatment with VANFLYTA.
Females who are able to become pregnant should use effective birth control (contraception) during treatment with VANFLYTA and for 7 months after the last dose of VANFLYTA. Males who have female partners who are able to become pregnant should use effective birth control during treatment with VANFLYTA and for 4 months after the last dose of VANFLYTA. Talk to your healthcare provider about birth control methods you can use during this time. are breastfeeding or plan to breastfeed.
It is not known if VANFLYTA passes into your breast milk. Do not breastfeed during treatment with VANFLYTA and for 1 month after the last dose of VANFLYTA. Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.
VANFLYTA and other medicines may affect each other causing side effects. Especially tell your healthcare provider if you take St. John's wort.
You should not take St. John's wort during treatment with VANFLYTA. How should I take VANFLYTA?
Take VANFLYTA exactly as your healthcare provider tells you to. Do not change your dose or stop taking VANFLYTA unless your healthcare provider tells you t…