Axitinib
FDA Drug Information • Also known as: Inlyta
- Brand Names
- Inlyta
- Drug Class
- Kinase Inhibitor [EPC]
- Route
- ORAL
- Dosage Form
- TABLET, FILM COATED
- Product Type
- HUMAN PRESCRIPTION DRUG
Description
11 DESCRIPTION INLYTA (axitinib) is a kinase inhibitor. Axitinib has the chemical name N-methyl-2-[3-((E)-2-pyridin-2-yl-vinyl)-1H-indazol-6-ylsulfanyl]-benzamide. The molecular formula is C22H18N4OS and the molecular weight is 386.47 Daltons. The chemical structure is: Axitinib is a white to light-yellow powder with a pKa of 4.8. The solubility of axitinib in aqueous media over the range pH 1.1 to pH 7.8 is in excess of 0.2 µg/mL. The partition coefficient (n-octanol/water) is 3.5. INLYTA is supplied as red, film-coated tablets containing either 1 mg or 5 mg of axitinib together with microcrystalline cellulose, lactose monohydrate, croscarmellose sodium, magnesium stearate, and Opadry ® II red 32K15441 as inactive ingredients. The Opadry II red 32K15441 film coating contains lactose monohydrate, HPMC 2910/Hypromellose 15cP, titanium dioxide, triacetin (glycerol triacetate), and red iron oxide. Chemical Structure
What Is Axitinib Used For?
1 INDICATIONS AND USAGE INLYTA is a kinase inhibitor indicated:
in combination with avelumab, for the first-line treatment of patients with advanced renal cell carcinoma (RCC). ( 1.1 ) in combination with pembrolizumab, for the first-line treatment of patients with advanced RCC. ( 1.1 ) as a single agent, for the treatment of advanced renal cell carcinoma (RCC) after failure of one prior systemic therapy. ( 1.2 ) 1.1 First-Line Advanced Renal Cell Carcinoma INLYTA in combination with avelumab is indicated for the first-line treatment of patients with advanced renal cell carcinoma (RCC). INLYTA in combination with pembrolizumab is indicated for the first-line treatment of patients with advanced RCC. 1.2 Second-Line Advanced Renal Cell Carcinoma INLYTA as a single agent is indicated for the treatment of advanced RCC after failure of one prior systemic therapy.Dosage and Administration
2 DOSAGE AND ADMINISTRATION
INLYTA 5 mg orally twice daily with avelumab 800 mg every 2 weeks. ( 2.1 ) INLYTA 5 mg orally twice daily with pembrolizumab 200 mg every 3 weeks or 400 mg every 6 weeks. ( 2.1 ) INLYTA as a single agent the starting dose is 5 mg orally twice daily. ( 2.1 ) Dose adjustments can be made based on individual safety and tolerability. ( 2.2 ) Administer INLYTA dose approximately 12 hours apart with or without food. ( 2.1 ) INLYTA should be swallowed whole with a glass of water. ( 2.1 ) See Full Prescribing Information for dosage modifications for adverse reactions. ( 2.2 ) If a strong CYP3A4/5 inhibitor is required, decrease the INLYTA dose by approximately half. ( 2.2 ) For patients with moderate hepatic impairment, decrease the starting dose by approximately half. ( 2.2 ) 2.1 Recommended Dosing First-Line Advanced RCC INLYTA in Combination with Avelumab The recommended starting dosage of INLYTA is 5 mg orally taken twice daily (12 hours apart) with or without food in combination with avelumab 800 mg administered as an intravenous infusion over 60 minutes every 2 weeks until disease progression or unacceptable toxicity. When INLYTA is used in combination with avelumab, dose escalation of INLYTA above the initial 5 mg dose may be considered at intervals of two weeks or longer. Review the Full Prescribing Information for recommended avelumab dosing information. INLYTA in Combination with Pembrolizumab The recommended starting dosage of INLYTA is 5 mg orally twice daily (12 hours apart) with or without food in combination with pembrolizumab 200 mg every 3 weeks or 400 mg every 6 weeks administered as an intravenous infusion over 30 minutes until disease progression or unacceptable toxicity. When INLYTA is used in combination with pembrolizumab, dose escalation of INLYTA above the initial 5 mg dose may be considered at intervals of six weeks or longer. Review the Full Prescribing Information for recommended pembrolizumab dosing information. Second-Line Advanced RCC When INLYTA is used as a single agent, the recommended starting oral dose is 5 mg twice daily. Administer INLYTA doses approximately 12 hours apart with or without food. Important Administration Instructions Advise patients to swallow INLYTA whole with a full glass of water. If the patient vomits or misses a dose, an additional dose should not be taken. Advise the patient to take the next prescribed dose at the usual time. 2.2 Dose Modification Guidelines Dose increase or reduction is recommended based on individual safety and tolerability. Recommended INLYTA dosage increases and reductions are provided in Table 1. Over the course of treatment, patients who tolerate INLYTA for at least two consecutive weeks with no adverse reactions Grade >2 (according to the Common Toxicity Criteria for Adverse Events [CTCAE]), are normotensive, and are not receiving anti-hypertension medication, may have their dose increased. Table 1: Recommended Dosage...Side Effects (Adverse Reactions)
6 ADVERSE REACTIONS The following clinically significant adverse reactions are discussed elsewhere in the labeling [see Warnings and Precautions (5) ] :
Hypertension [see Warnings and Precautions (5.1) ] Arterial thromboembolic events [see Warnings and Precautions (5.2) ] Venous thromboembolic events [see Warnings and Precautions (5.3) ] Hemorrhage [see Warnings and Precautions (5.4) ] Cardiac failure [see Warnings and Precautions (5.5) ] Gastrointestinal perforation and fistula formation [see Warnings and Precautions (5.6) ] Thyroid dysfunction [see Warnings and Precautions (5.7) ] Reversible posterior leukoencephalopathy syndrome [see Warnings and Precautions (5.9) ] Proteinuria [see Warnings and Precautions (5.10) ] Hepatotoxicity [see Warnings and Precautions (5.11) ] Hepatic impairment [see Warnings and Precautions (5.12) ] Most common adverse reactions (≥20%) are: INLYTA in combination with avelumab: diarrhea, fatigue, hypertension, musculoskeletal pain, nausea, mucositis, palmar-plantar erythrodysesthesia, dysphonia, decreased appetite, hypothyroidism, rash, hepatotoxicity, cough, dyspnea, abdominal pain, and headache. ( 6.1 ) INLYTA in combination with pembrolizumab: diarrhea, fatigue/asthenia, hypertension, hepatotoxicity, hypothyroidism, decreased appetite, palmar-plantar erythrodysesthesia, nausea, stomatitis/mucosal inflammation, dysphonia, rash, cough, and constipation. ( 6.1 ) INLYTA as a single agent: diarrhea, hypertension, fatigue, decreased appetite, nausea, dysphonia, palmar-plantar erythrodysesthesia (hand-foot) syndrome, weight decreased, vomiting, asthenia, and constipation. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Pfizer Inc. at 1-800-438-1985 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch . 6.1 Clinical 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 clinical practice. The safety of INLYTA has been evaluated in combination with avelumab in JAVELIN Renal 101 and pembrolizumab in KEYNOTE-426 for the first-line treatment of patients with advanced RCC [see Clinical Studies (14.1) ] . The data described [see Adverse Reactions (6.1) ] reflect exposure to INLYTA in combination with avelumab in 434 patients and pembrolizumab in 429 patients [see Clinical Studies (14.1) ] . The safety of INLYTA has been evaluated in 715 patients in second-line monotherapy studies, which included 537 patients with advanced RCC. The data described [see Adverse Reactions (6.1) ] reflect exposure to INLYTA in 359 patients with advanced RCC who participated in a randomized clinical study versus sorafenib [see Clinical Studies (14.2) ] . First-Line Advanced RCC INLYTA in Combination with Avelumab The safety of INLYTA in combination with avelumab was evaluated in JAVELIN Renal 101. Patients with autoimmune disease other than type I diabetes mellitus, vitiligo, psoriasis, or thyroid disorders not requiring immunosuppressive treatment were excluded. Patients received INLYTA 5 mg twice daily (N=434) in combination with avelumab 10 mg/kg every 2 weeks administered or sunitinib 50 mg once daily for 4 weeks followed by 2 weeks off (N=439). In the INLYTA plus avelumab arm, 70% were exposed to avelumab for ≥6 months and 29% were exposed for ≥1 year in JAVELIN Renal 101 [see Clinical Studies (14.1) ] . The median age of patients treated with INLYTA in combination with avelumab was 62 years (range: 29 to 83), 38% of patients were 65 years or older, 71% were male, 75% were White, and the Eastern Cooperative Oncology Group (ECOG) performance score was 0 (64%) or 1 (36%). Fatal adverse reactions occurred in 1.8% of patients receiving INLYTA in combination with avelumab. These included sudden cardiac death (1.2%), stroke (0.2%), myocarditis (0.2%), and necrotizing pancreatitis (0.2%)....Drug Interactions
7 DRUG INTERACTIONS
Avoid strong CYP3A4/5 inhibitors. If unavoidable, reduce the INLYTA dose. ( 2.2 , 7.1 ) Avoid strong CYP3A4/5 inducers. ( 7.2 ) 7.1 CYP3A4/5 Inhibitors Co-administration of ketoconazole, a strong inhibitor of CYP3A4/5, increased the plasma exposure of axitinib in healthy volunteers. Co-administration of INLYTA with strong CYP3A4/5 inhibitors should be avoided. Grapefruit or grapefruit juice may also increase axitinib plasma concentrations and should be avoided. Selection of concomitant medication with no or minimal CYP3A4/5 inhibition potential is recommended. If a strong CYP3A4/5 inhibitor must be co-administered, the INLYTA dose should be reduced [see Dosage and Administration (2.2) and Clinical Pharmacology (12.3) ] . 7.2 CYP3A4/5 Inducers Co-administration of rifampin, a strong inducer of CYP3A4/5, reduced the plasma exposure of axitinib in healthy volunteers. Co-administration of INLYTA with strong CYP3A4/5 inducers (e.g., rifampin, dexamethasone, phenytoin, carbamazepine, rifabutin, rifapentine, phenobarbital, and St. John's wort) should be avoided. Selection of concomitant medication with no or minimal CYP3A4/5 induction potential is recommended [see Dosage and Administration (2.2) , Clinical Pharmacology (12.3) ] . Moderate CYP3A4/5 inducers (e.g., bosentan, efavirenz, etravirine, modafinil, and nafcillin) may also reduce the plasma exposure of axitinib and should be avoided if possible.Contraindications
4 CONTRAINDICATIONS None. None. ( 4 )
Pregnancy and Breastfeeding
8.1 Pregnancy Risk Summary Based on findings in animal studies and its mechanism of action, INLYTA can cause fetal harm when administered to a pregnant woman. There are no available human data to inform the drug-associated risk. In developmental toxicity studies, axitinib was teratogenic, embryotoxic and fetotoxic in mice at exposures lower than human exposures at the recommended starting dose (see Data ) . Advise females of reproductive potential of the potential risk to a fetus. The background risk of major birth defects and miscarriage for the indicated populations are unknown. However, the background risk in the United States (U.S.) general population of major birth defects is 2%–4% and of miscarriage is 15%–20% of clinically recognized pregnancies. When INLYTA is used in combination with avelumab or pembrolizumab, refer to the full prescribing information of avelumab or pembrolizumab for pregnancy information. Data Animal Data Oral axitinib administered twice daily to female mice prior to mating and through the first week of pregnancy caused an increase in post-implantation loss at all doses tested (≥15 mg/kg/dose, approximately 10 times the systemic exposure (AUC) in patients at the recommended starting dose). In an embryo-fetal developmental toxicity study, pregnant mice received oral doses of 0.15, 0.5 and 1.5 mg/kg/dose axitinib twice daily during the period of organogenesis. Embryo-fetal toxicities observed in the absence of maternal toxicity included malformation (cleft palate) at 1.5 mg/kg/dose (approximately 0.5 times the AUC in patients at the recommended starting dose) and variation in skeletal ossification at ≥0.5 mg/kg/dose (approximately 0.15 times the AUC in patients at the recommended starting dose).
Overdosage
10 OVERDOSAGE There is no specific treatment for INLYTA overdose. In a controlled clinical study with INLYTA for the treatment of patients with RCC, 1 patient inadvertently received a dose of 20 mg twice daily for 4 days and experienced dizziness (Grade 1). In a clinical dose finding study with INLYTA, subjects who received starting doses of 10 mg twice daily or 20 mg twice daily experienced adverse reactions which included hypertension, seizures associated with hypertension, and fatal hemoptysis. In cases of suspected overdose, INLYTA should be withheld and supportive care instituted.
How Supplied
16 HOW SUPPLIED/STORAGE AND HANDLING INLYTA tablets are supplied as follows:
1 mg tablets are red film-coated, oval tablets debossed with "Pfizer" on one side and "1 XNB" on the other; available in bottles of 180: NDC 0069-0145-01. 5 mg tablets are red film-coated, triangular tablets debossed with "Pfizer" on one side and "5 XNB" on the other; available in bottles of 60: NDC 0069-0151-11. Store at 20°C to 25°C (68°F to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature].About This Information
This drug information is sourced from FDA-approved labeling via the openFDA database. It is intended for educational and reference purposes only. This is not medical advice. Always consult your healthcare provider before making decisions about medication. Drug information may be updated by the FDA; check with your pharmacist for the most current information.
What are side effects?
Side effects are unwanted reactions that can occur when taking a medication. They range from mild (headache, nausea) to severe (allergic reactions, organ damage). Not everyone experiences side effects, and severity varies. Report any concerning side effects to your doctor.
What are drug interactions?
Drug interactions occur when a medication is affected by another drug, food, or supplement. Interactions can make medications less effective or cause dangerous side effects. Always tell your doctor about all medications and supplements you take.