Xalkori

Xalkori

crizotinib

Manufacturer:

Pfizer

Distributor:

Zuellig Pharma
Full Prescribing Info
Contents
Crizotinib.
Description
Each hard capsule contains either 200 mg or 250 mg of Crizotinib.
Excipients/Inactive Ingredients: Colloidal silicon dioxide, microcrystalline cellulose, anhydrous dibasic calcium phosphate, sodium starch glycolate, magnesium stearate and hard gelatin capsule shells.
The pink opaque capsule shell components contain gelatin, titanium dioxide and red iron oxide.
The white opaque capsule shell components contain gelatin and titanium dioxide.
The printing ink contains shellac, propylene glycol, strong ammonia solution, potassium hydroxide and black iron oxide.
Action
Pharmacology: Mechanism of Action: Crizotinib is an inhibitor of receptor tyrosine kinases including ALK, Hepatocyte Growth Factor Receptor (HGFR, c-Met), ROS1 (c-ros), and Recepteur d'Origine Nantais (RON). Translocations can affect the ALK gene resulting in the expression of oncogenic fusion proteins. The formation of ALK fusion proteins results in activation and dysregulation of the gene's expression and signaling which can contribute to increased cell proliferation and survival in tumors expressing these proteins. Crizotinib demonstrated concentration-dependent inhibition of ALK, ROS1, and c-Met phosphorylation in cell-based assays using tumor cell lines and demonstrated antitumor activity in mice bearing tumor xenografts that expressed echinoderm microtubule-associated protein-like 4 (EML4)- or nucleophosmin (NPM)-ALK fusion proteins or c-Met.
Pharmacodynamics: Cardiac Electrophysiology: In an ECG substudy conducted in 52 patients with ALK-positive NSCLC , the maximum mean QTcF (corrected QT by the Fridericia method) change from baseline was 12.3 ms (2-sided 90% upper CI: 19.5 ms) following administration of XALKORI 250 mg orally twice daily. An exposure-QT analysis suggested a crizotinib plasma concentration-dependent increase in QTcF [see QT Interval Prolongation under Precautions].
Clinical Studies: ALK-Positive Metastatic NSCLC: Previously Untreated ALK-Positive Metastatic NSCLC - Study 1 (PROFILE 1014; NCT01154140): The efficacy of XALKORI for the treatment of patients with ALK-positive metastatic NSCLC, who had not received previous systemic treatment for advanced disease, was demonstrated in a randomized, multicenter, open-label, active-controlled study (Study 1). Patients were required to have ALK-positive NSCLC as identified by the FDA-approved assay, Vysis ALK Break-Apart fluorescence in situ hybridization (FISH) Probe Kit, prior to randomization. The major efficacy outcome measure was progression-free survival (PFS) according to Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 as assessed by independent radiology review (IRR) committee. Additional efficacy outcome measures included objective response rate (ORR) as assessed by IRR, duration of response (DOR), and overall survival (OS). Patient-reported lung cancer symptoms were assessed at baseline and periodically during treatment.
Patients were randomized to receive XALKORI (n=172) or chemotherapy (n=171). Randomization was stratified by Eastern Cooperative Oncology Group (ECOG) performance status (0-1, 2), race (Asian, non-Asian), and brain metastases (present, absent). Patients in the XALKORI arm received XALKORI 250 mg orally twice daily until documented disease progression, intolerance to therapy, or the investigator determined that the patient was no longer experiencing clinical benefit. Chemotherapy consisted of pemetrexed 500 mg/m2 with cisplatin 75 mg/m2 or carboplatin AUC of 5 or 6 mg × min/mL by intravenous infusion every 3 weeks for up to 6 cycles. Patients in the chemotherapy arm were not permitted to receive maintenance chemotherapy. At the time of documented disease progression, as per independent radiology review, patients randomized to chemotherapy were offered XALKORI.
The demographic characteristics of the overall study population were 62% female, median age of 53 years, baseline ECOG performance status 0 or 1 (95%), 51% White and 46% Asian, 4% current smokers, 32% past smokers, and 64% never smokers. The disease characteristics of the overall study population were metastatic disease in 98% of patients, 92% of patients' tumors were classified as adenocarcinoma histology, 27% of patients had brain metastases, and 7% received systemic chemotherapy as adjuvant or neoadjuvant therapy. At the time of the final analysis of overall survival, 84% of patients randomized to the chemotherapy arm subsequently received XALKORI.
Study 1 demonstrated a statistically significant improvement in PFS in patients treated with XALKORI. There was no statistically significant difference in OS between patients treated with XALKORI and patients treated with chemotherapy. Table 1 and Figure 1 summarize the efficacy results. Exploratory patient-reported symptom measures of baseline and post-treatment dyspnea, cough, and chest pain suggested a delay in time to development of or worsening of dyspnea, but not cough or chest pain, in patients treated with XALKORI as compared to chemotherapy. The patient-reported delay in onset or worsening of dyspnea may be an overestimation, because patients were not blinded to treatment assignment. (See Table 1 and Figure 1.)

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Previously Treated ALK-Positive Metastatic NSCLC - Study 2 (PROFILE 1007; NCT00932893): The efficacy of XALKORI as monotherapy for the treatment of 347 patients with ALK-positive metastatic NSCLC, previously treated with 1 platinum-based chemotherapy regimen, were demonstrated in a randomized, multicenter, open-label, active-controlled study (Study 2). The major efficacy outcome was PFS according to RECIST version 1.1 as assessed by IRR. Additional efficacy outcomes included ORR as assessed by IRR, DOR, and OS.
Patients were randomized to receive XALKORI 250 mg orally twice daily (n=173) or chemotherapy (n=174). Chemotherapy consisted of pemetrexed 500 mg/m2 (if pemetrexed naïve; n=99) or docetaxel 75 mg/m2 (n=72) intravenously (IV) every 21 days. Patients in both treatment arms continued treatment until documented disease progression, intolerance to therapy, or the investigator determined that the patient was no longer experiencing clinical benefit. Randomization was stratified by ECOG performance status (0-1, 2), brain metastases (present, absent), and prior EGFR tyrosine kinase inhibitor treatment (yes, no). Patients were required to have ALK-positive NSCLC as identified by the FDA-approved assay, Vysis ALK Break-Apart FISH Probe Kit, prior to randomization.
The demographic characteristics of the overall study population were 56% female, median age of 50 years, baseline ECOG performance status 0 or 1 (90%), 52% White and 45% Asian, 4% current smokers, 33% past smokers, and 63% never smokers. The disease characteristics of the overall study population were metastatic disease in at least 95% of patients and at least 93% of patients' tumors were classified as adenocarcinoma histology. At the time of the final analysis of overall survival, 89% of patients randomized to the chemotherapy arm subsequently received XALKORI.
Study 2 demonstrated a statistically significant improvement in PFS in the patients treated with XALKORI. Table 2 and Figure 2 summarize the efficacy results. (See Table 2 and Figure 2.)

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ROS1-Positive Metastatic NSCLC: ROS1-Positive Metastatic NSCLC - Study 3 (PROFILE 1001; NCT00585195): The efficacy and safety of XALKORI was investigated in a multicenter, single-arm study (Study 3), in which patients with ROS1-positive metastatic NSCLC received XALKORI 250 mg orally twice daily. Patients were required to have histologically-confirmed advanced NSCLC with a ROS1 rearrangement, age 18 years or older, ECOG performance status of 0, 1, or 2, and measurable disease. The efficacy outcome measures were ORR and DOR according to RECIST version 1.0 as assessed by IRR and investigator, with imaging performed every 8 weeks for the first 60 weeks.
Baseline demographic and disease characteristics were female (56%), median age of 53 years, baseline ECOG performance status of 0 or 1 (98%), White (54%), Asian (42%), past smokers (22%), never smokers (78%), metastatic disease (92%), adenocarcinoma (96%), no prior systemic therapy for metastatic disease (14%), and prior platinum-based chemotherapy for metastatic disease (80%). The ROS1 status of NSCLC tissue samples was determined by laboratory-developed break-apart FISH (96%) or RT-PCR (4%) clinical trial assays. For assessment by FISH, ROS1 positivity required that ≥15% of a minimum of 50 evaluated nuclei contained a ROS1 gene rearrangement.
Efficacy results are summarized in Table 3.

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Pharmacokinetics: Following XALKORI 250 mg twice daily, steady state was reached within 15 days and remained stable, with a median accumulation ratio of 4.8. Steady-state observed minimum concentration (Cmin) and AUC increased in a greater than dose-proportional manner over the dose range of 200 mg to 300 mg twice daily (0.8 to 1.2 times the approved recommended dosage).
Absorption: A single crizotinib dose was absorbed with median time to achieve peak concentration of 4 to 6 hours, and the mean absolute bioavailability of crizotinib was 43% (range: 32% to 66%).
Effect of Food: A high-fat meal reduced crizotinib AUC0-INF and maximum observed plasma concentration (Cmax) by approximately 14%.
Distribution: The geometric mean volume of distribution (Vss) of crizotinib was 1772 L following a single intravenous dose.
Protein binding of crizotinib is 91% and is independent of drug concentration in vitro. Crizotinib is a substrate for P-glycoprotein (P-gp) in vitro. The blood-to-plasma concentration ratio is approximately 1.
Elimination: The mean apparent plasma terminal half-life of crizotinib was 42 hours following single doses of crizotinib in patients. The mean apparent clearance (CL/F) of crizotinib was lower at steady state (60 L/h) after 250 mg twice daily than after a single 250 mg oral dose (100 L/h).
Metabolism: Crizotinib is predominantly metabolized by CYP3A.
Excretion: Following administration of a single oral 250 mg dose of radiolabeled crizotinib dose to healthy subjects, 63% (53% as unchanged) of the administered dose was recovered in feces and 22% (2.3% as unchanged) in urine.
Specific Populations: No clinically significant difference in crizotinib pharmacokinetics were observed based on age, sex, ethnicity (Asian, non-Asian), or body weight.
Patients with Hepatic Impairment: Steady-state mean crizotinib AUC and Cmax decreased by 9% in patients with mild hepatic impairment (AST >ULN and total bilirubin ≤1 times ULN or any AST and total bilirubin >1 times ULN but ≤1.5 times ULN) compared to patients with normal hepatic function following XALKORI 250 mg orally twice daily.
Steady-state mean crizotinib AUC increased by 14% and Cmax increased by 9% in patients with moderate hepatic impairment (any AST and total bilirubin >1.5 times ULN and ≤3 times ULN) following XALKORI 200 mg orally twice daily compared with patients with normal hepatic function following XALKORI 250 mg orally twice daily.
Mean crizotinib AUC decreased by 35% and Cmax decreased by 27% in patients with severe hepatic impairment (any AST and total bilirubin >3 times ULN) following XALKORI 250 mg orally once daily compared with patients with normal hepatic function following XALKORI 250 mg orally twice daily [see Recommended Dosing under Dosage & Administration and Hepatic Impairment under Precautions].
Patients with Renal Impairment: Mild or moderate renal impairment (CLcr of 60-89 ml/min or 30-59 ml/min, respectively, calculated using the modified Cockcroft-Gault equation) has no clinically significant effect on the exposure of crizotinib.
Following a single 250 mg dose, the mean AUC0-INF of crizotinib increased by 79% and the mean Cmax increased by 34% in patients with severe renal impairment (CLcr <30 mL/min) who did not require dialysis compared to those with normal renal function (CLcr ≥90 mL/min). Similar changes in AUC0-INF and Cmax were observed for the active metabolite of crizotinib [see Dosage Modifications for Moderate and Severe Hepatic Impairment under Dosage & Administration and Renal Impairment under Precautions].
Drug Interaction Studies: Clinical Studies: Gastric Acid Reducing Agents: No clinically significant differences in crizotinib pharmacokinetics were observed when used concomitantly with esomeprazole, a proton pump inhibitor.
Strong CYP3A Inhibitors: Co-administration of a single 150 mg oral dose of crizotinib with ketoconazole, a strong CYP3A inhibitor, increased crizotinib AUC0-INF by 216% and Cmax by 44% compared to crizotinib alone. Co-administration of XALKORI 250 mg orally once daily with itraconazole, a strong CYP3A inhibitor, increased crizotinib steady-state AUC by 57% and Cmax by 33%, respectively, compared to crizotinib alone [see Effect of Other Drugs on XALKORI under Interactions].
Strong CYP3A Inducers: Co-administration of XALKORI 250 mg orally twice daily with rifampin a strong CYP3A inducer, decreased crizotinib steady-state AUC0-Tau by 84% and Cmax by 79%, compared to crizotinib alone. [see Effect of Other Drugs on XALKORI under Interactions].
CYP3A Substrates: Co-administration of XALKORI 250 mg orally twice daily for 28 days increased AUC0-INF of oral midazolam (CYP3A substrate) 3.7-fold compared to midazolam alone [see Effect of XALKORI on Other Drugs under Interactions].
In Vitro Studies: CYP Enzymes: Crizotinib inhibits CYP2B6 in vitro. Crizotinib does not inhibit CYP1A2, CYP2C8, CYP2C9, CYP2C19, or CYP2D6. Crizotinib does not induce CYP1A2, CYP2B6, CYP2C8, CYP2C9, CYP2C19, or CYP3A.
UDP-glucuronosyltransferase (UGT): Crizotinib does not inhibit UGT1A1, UGT1A4, UGT1A6, UGT1A9 or UGT2B7.
Transporters: Crizotinib inhibits P-gp, organic cation transporter (OCT) 1, and OCT2.
Crizotinib does not inhibit organic anion transporting polypeptides (OATP) B1, OATP1B3, organic anion transporter (OAT) 1, OAT3, or bile salt export pump transporter (BSEP).
Non-Clinical Toxicology: Carcinogenesis, Mutagenesis, Impairment of Fertility: Carcinogenicity studies with crizotinib have not been conducted.
Crizotinib was genotoxic in an in vitro micronucleus assay in Chinese Hamster Ovary cultures, in an in vitro human lymphocyte chromosome aberration assay, and in in vivo rat bone marrow micronucleus assays. Crizotinib was not mutagenic in vitro in the bacterial reverse mutation (Ames) assay.
No specific studies with crizotinib have been conducted in animals to evaluate the effect on fertility; however, crizotinib is considered to have the potential to impair reproductive function and fertility in humans based on findings in repeat-dose toxicity studies in the rat. Findings observed in the male reproductive tract included testicular pachytene spermatocyte degeneration in rats given greater than or equal to 50 mg/kg/day for 28 days (greater than 1.7 times the recommended human dose based on AUC). Findings observed in the female reproductive tract included single-cell necrosis of ovarian follicles of a rat given 500 mg/kg/day (approximately 10 times the recommended human dose based on body surface area) for 3 days.
Indications/Uses
Crizotinib is indicated for the treatment of patients with advanced non-small cell lung cancer (NSCLC) whose tumors are anaplastic lymphoma kinase (ALK) or ROS1-positive.
Dosage/Direction for Use
Patient Selection: Select patients for the treatment of metastatic NSCLC with XALKORI based on the presence of ALK or ROS1 positivity in tumor specimens [see Pharmacology: Pharmacodynamics: Clinical Studies: ALK-Positive Metastatic NSCLC and ROS1-Positive Metastatic NSCLC under Actions].
ALK and ROS1 Testing: An accurate and validated assay for either ALK or ROS1 is necessary for the selection of patients for treatment with XALKORI [see Pharmacology: Pharmacodynamics: Clinical Studies under Actions].
Either ALK-positive or ROS1-positive NSCLC status should be established prior to initiation of Crizotinib therapy.
Assessment should be performed by laboratories with demonstrated proficiency in the specific technology being utilized [see Precautions].
Recommended Dosing: The recommended dose of XALKORI is 250 mg orally, twice daily, with or without food, until disease progression or no longer tolerated by the patient.
Swallow capsules whole. If a dose of XALKORI is missed, make up that dose unless the next dose is due within 6 hours. If vomiting occurs after taking a dose of XALKORI, take the next dose at the regular time.
Dosage Modifications for Adverse Reactions: The recommended dose reductions are: First dose reduction: XALKORI 200 mg taken orally twice daily.
Second dose reduction: XALKORI 250 mg taken orally once daily.
Permanently discontinue if unable to tolerate XALKORI 250 mg taken orally once daily.
Dosage modifications for adverse reactions for XALKORI are provided in Tables 4 and 5. (See Table 4.)

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Monitor complete blood counts including differential white blood cell counts monthly and as clinically indicated, with more frequent repeat testing if Grade 3 or 4 abnormalities are observed, or if fever or infection occurs. (See Table 5.)

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Dosage Modifications for Moderate and Severe Hepatic Impairment: The recommended dose of XALKORI in patients with pre-existing moderate hepatic impairment [any aspartate aminotransferase (AST) and total bilirubin greater than 1.5 times the upper limit of normal (ULN) and less than or equal to 3 times ULN] is 200 mg orally twice daily.
The recommended dose of XALKORI in patients with pre-existing severe hepatic impairment (any AST and total bilirubin greater than 3 times ULN) is 250 mg orally once daily [see Hepatic Impairment under Precautions and Pharmacology: Pharmacokinetics under Actions].
Dosage Modification for Severe Renal Impairment: The recommended dosage of XALKORI in patients with severe renal impairment [creatinine clearance (CLcr) less than 30 mL/min, calculated using the modified Cockcroft-Gault equation] not requiring dialysis is 250 mg orally once daily [see Renal Impairment under Precautions and Pharmacology: Pharmacokinetics under Actions].
Dosage Modification for Concomitant Use of Strong CYP3A Inhibitors: Avoid concomitant use of strong CYP3A inhibitors. If concomitant use of strong CYP3A inhibitors is unavoidable, reduce the dose of XALKORI to 250 mg orally once daily [see Effect of Other Drugs on XALKORI under Interactions]. After discontinuation of a strong CYP3A inhibitor, resume the XALKORI dose used prior to initiating the strong CYP3A inhibitor.
Overdosage
There have been no known cases of Crizotinib overdose. There is no antidote for Crizotinib.
Contraindications
Hypersensitivity to Crizotinib or to any of the excipients listed in Description.
Special Precautions
Hepatotoxicity: Drug-induced hepatotoxicity with fatal outcome occurred in 0.1% of the 1719 patients treated with XALKORI across clinical trials [see Clinical Trials Experience under Adverse Reactions]. Concurrent elevations in ALT or AST ≥3 times the ULN and total bilirubin ≥2 times the ULN, with normal alkaline phosphatase, occurred in <1% treated with XALKORI. Increased ALT or AST ˃5 times the ULN occurred in 11% and 6% of patients respectively. One percent (1.0%) of patients required permanent discontinuation due to elevated transaminases. Increased transaminases generally occurred within the first 2 months of treatment.
Monitor liver function tests, including ALT, AST, and total bilirubin, every 2 weeks during the first 2 months of treatment, then once a month, and as clinically indicated, with more frequent repeat testing for increased liver transaminases, alkaline phosphatase, or total bilirubin in patients who develop increased transaminases. Withhold, reduce dose, or permanently discontinue XALKORI for hepatotoxicity as recommended [see Dosage Modifications for Adverse Reactions under Dosage & Administration].
Interstitial Lung Disease/Pneumonitis: Severe, life-threatening, or fatal interstitial lung disease (ILD)/pneumonitis can occur in patients treated with XALKORI. Across clinical trials (n=1719), 2.9% of XALKORI-treated patients had ILD of any grade, 1.0% had Grade 3 or 4 ILD, and 0.5% had fatal ILD [see Clinical Trials Experience under Adverse Reactions]. Interstitial lung disease generally occurred within 3 months after the initiation of XALKORI.
Monitor patients for pulmonary symptoms indicative of ILD/pneumonitis. Exclude other potential causes of ILD/pneumonitis, and permanently discontinue XALKORI in patients diagnosed with drug-related ILD/pneumonitis [see Dosage Modifications for Adverse Reactions under Dosage & Administration].
QT Interval Prolongation: QTc prolongation can occur in patients treated with XALKORI. Across clinical trials, 2.1% of 1616 patients had QTcF (corrected QT for heart rate by the Fridericia method) greater than or equal to 500 ms and 5% of 1582 patients had an increase from baseline QTcF greater than or equal to 60 ms by automated machine-read evaluation of ECGs.
Avoid use of XALKORI in patients with congenital long QT syndrome. Monitor ECGs and electrolytes in patients with congestive heart failure, bradyarrhythmias, electrolyte abnormalities, or who are taking medications that are known to prolong the QT interval. Withhold, reduce dose, or permanently discontinue XALKORI for QT/QTc interval prolongation as recommended [see Dosage Modifications for Adverse Reactions under Dosage & Administration and Pharmacology: Pharmacodynamics under Actions].
Cardiac Failure: In clinical studies with crizotinib and during post-marketing surveillance, severe, life-threatening, or fatal adverse reactions of cardiac failure were reported.
Patients with or without pre-existing cardiac disorders, receiving crizotinib, should be monitored for signs and symptoms of heart failure (dyspnoea, oedema, rapid weight gain from fluid retention). Dosing interruption, dose reduction, or discontinuation should be considered as appropriate if such symptoms are observed.
Bradycardia: Symptomatic bradycardia can occur in patients receiving XALKORI. Across clinical trials, bradycardia occurred in 13% of 1719 patients treated with XALKORI. Grade 3 syncope occurred in 2.4% of XALKORI-treated patients and in 0.6% of the chemotherapy-treated patients [see Clinical Trials Experience under Adverse Reactions].
Avoid using XALKORI in combination with other medications known to cause bradycardia (e.g., beta-blockers, non-dihydropyridine calcium channel blockers, clonidine and digoxin) to the extent possible. Monitor heart rate and blood pressure regularly. If bradycardia occurs, re-evaluate for the use of concomitant medications, known to cause bradycardia. Withhold, reduce dose , or permanently discontinue XALKORI for bradycardia as recommended [see Dosage Modifications for Adverse Reactions under Dosage & Administration].
Severe Visual Loss: Across all clinical trials, the incidence of Grade 4 visual field defect with vision loss was 0.2% of 1719 patients [see Clinical Trials Experience under Adverse Reactions]. Optic atrophy and optic nerve disorder have been reported as potential causes of vision loss.
Discontinue XALKORI in patients with new onset of severe visual loss (best corrected vision less than 20/200 in one or both eyes). Perform an ophthalmological evaluation consisting of best corrected visual acuity, retinal photographs, visual fields, optical coherence tomography (OCT) and other evaluations as appropriate for new onset of severe visual loss. There is insufficient information to characterize the risks of resumption of XALKORI in patients with a severe visual loss; a decision to resume XALKORI should consider the potential benefits to the patient.
Embryo-Fetal Toxicity: Based on its mechanism of action, XALKORI can cause fetal harm when administered to a pregnant woman. In animal reproduction studies, oral administration of Crizotinib in pregnant rats during organogenesis at exposures similar to those observed with the maximum recommended human dose resulted in embryotoxicity and fetotoxicity. Advise pregnant women of the potential risk to a fetus [see Pregnancy under Use in Pregnancy & Lactation and Pharmacology: Non-Clinical Toxicology: Carcinogenesis, Mutagenesis, Impairment of Fertility under Actions].
Hepatic Impairment: Crizotinib concentrations increased in patients with pre-existing moderate (any AST and total bilirubin greater than 1.5 times ULN and less than or equal to 3 times ULN) or severe (any AST and total bilirubin greater than 3 times ULN) hepatic impairment [see Pharmacology: Pharmacokinetics under Actions]. Reduce XALKORI dosage in patients with moderate or severe hepatic impairment [see Dosage Modifications for Moderate and Severe Hepatic Impairment under Dosage & Administration]. No dose adjustment is recommended in patients with pre-existing mild hepatic impairment (AST > ULN and total bilirubin less than or equal to 1 times ULN or any AST and total bilirubin greater than 1 times ULN but less than or equal to 1.5 times ULN).
Renal Impairment: Increased exposure to crizotinib occurred in patients with pre-existing severe renal impairment (CLcr less than 30 mL/min calculated using the modified Cockcroft-Gault equation) not requiring dialysis, therefore reduce dosage of XALKORI in these patients [see Dosage Modification for Severe Renal Impairment under Dosage & Administration and Pharmacology: Pharmacokinetics under Actions]. No dose adjustment is recommended in patients with mild to moderate renal impairment (CLcr 30 to 89 mL/min).
Use in Children: The safety and effectiveness of XALKORI in pediatric patients have not been established.
Juvenile Animal Toxicity Data: Decreased bone formation in growing long bones was observed in immature rats at 150 mg/kg/day following once daily dosing for 28 days (approximately 5.4 times the recommended human dose based on AUC). Other toxicities of potential concern to pediatric patients have not been evaluated in juvenile animals.
Use in Elderly: Of the total number of patients with ALK-positive metastatic NSCLC in clinical studies of XALKORI (n=1669), 16% were 65 years or older and 3.8% were 75 years or older. No overall differences in safety or effectiveness were observed between these patients and younger patients.
Clinical studies of XALKORI in patients with ROS1 positive metastatic NSCLC did not include sufficient numbers of patients age 65 years and older to determine whether they respond differently from younger patients.
Use In Pregnancy & Lactation
Pregnancy: Risk Summary: Based on findings from animal studies and its mechanism of action, XALKORI can cause fetal harm when administered to a pregnant woman [see Pharmacology: Mechanism of Action under Actions]. There are no available data on the use of XALKORI during pregnancy. In animal reproduction studies, oral administration of crizotinib in pregnant rats during organogenesis at exposures similar to those expected with the maximum recommended human dose resulted in embryotoxicity and fetotoxicity (see Data as follows). Advise pregnant women of the potential risk to fetus.
In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively.
Data: Animal Data: Crizotinib was administered to pregnant rats and rabbits during organogenesis to study the effects on embryo-fetal development. Post-implantation loss was increased at doses ≥50 mg/kg/day (approximately 0.6 times the recommended human dose based on AUC) in rats. No teratogenic effects were observed in rats at doses up to the maternally toxic dose of 200 mg/kg/day (approximately 2.7 times the recommended human dose based on AUC) or in rabbits at doses of up to 60 mg/kg/day (approximately 1.6 times the recommended human dose based on AUC), though fetal body weights were reduced at these doses.
Lactation: Risk Summary: There is no information regarding the presence of crizotinib or its metabolites in human milk, or the effects on the breastfed child or on milk production. Because of the potential for adverse reactions in breastfed children, advise women not to breastfeed during treatment with XALKORI and for 45 days after the final dose.
Females and Males of Reproductive Potential: Pregnancy Testing: Verify the pregnancy status of females of reproductive potential prior to initiating XALKORI [see Pregnancy as previously mentioned].
Contraception: There are no adequate and well-controlled studies in pregnant women using crizotinib. Women of childbearing potential should be advised to avoid becoming pregnant while receiving crizotinib. Women of childbearing potential who are receiving this drug, or partners of women of childbearing potential receiving this drug, should use adequate contraceptive methods during therapy and for at least 90 days after completing therapy.
Infertility: Based on reproductive organ findings in animals, XALKORI may cause reduced fertility in females and males of reproductive potential. It is not known whether these effects on fertility are reversible [see Pharmacology: Non-Clinical Toxicology: Carcinogenesis, Mutagenesis, Impairment of Fertility under Actions].
Adverse Reactions
The following clinically significant adverse reactions are described elsewhere in the labeling: Hepatotoxicity [see Hepatotoxicity under Precautions].
Interstitial Lung Disease/Pneumonitis [see Interstitial Lung Disease/Pneumonitis under Precautions].
QT Interval Prolongation [see QT Interval Prolongation under Precautions].
Cardiac Failure [see Cardiac Failure under Precautions].
Bradycardia [see Bradycardia under Precautions].
Severe Visual Loss [see Severe Visual Loss under Precautions].
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 data in Precautions reflect exposure to XALKORI in 1719 patients who received XALKORI 250 mg twice daily enrolled on Studies 1 (including an additional 109 patients who crossed over from the control arm), 2, 3, a single arm trial (n=1063) of ALK-positive NSCLC, and an additional ALK-positive NSCLC expansion cohort of a dose finding study (n=154).
The data described as follows is based primarily on 343 patients with ALK-positive metastatic NSCLC who received XALKORI 250 mg orally twice daily from 2 open-label, randomized, active-controlled trials (Studies 1 and 2). The safety of XALKORI was also evaluated in 50 patients with ROS1 positive metastatic NSCLC from a single-arm study (Study 3).
The most common adverse reactions (≥25%) of XALKORI are vision disorders, nausea, diarrhea, vomiting, edema, constipation, elevated transaminases, fatigue, decreased appetite, upper respiratory infection, dizziness, and neuropathy.
Previously Untreated ALK-Positive Metastatic NSCLC - Study 1 (PROFILE 1014): The data in Table 3 are derived from 340 patients with ALK-positive metastatic NSCLC who had not received previous systemic treatment for advanced disease who received treatment in a randomized, multicenter, open-label, active-controlled trial (Study 1). Patients in the XALKORI arm (n=171) received XALKORI 250 mg orally twice daily until documented disease progression, intolerance to therapy, or the investigator determined that the patient was no longer experiencing clinical benefit. A total of 169 patients in the chemotherapy arm received pemetrexed 500 mg/m2 with cisplatin 75 mg/m2 (n=91) or carboplatin at a dose calculated to produce an AUC of 5 or 6 mg × min/mL (n=78). Chemotherapy was given by intravenous infusion every 3 weeks for up to 6 cycles, in the absence of dose-limiting chemotherapy-related toxicities. After 6 cycles, patients remained on study with no additional anticancer treatment, and tumor assessments continued until documented disease progression.
The median duration of study treatment was 10.9 months for patients in the XALKORI arm and 4.1 months for patients in the chemotherapy arm. Median duration of treatment was 5.2 months for patients who received XALKORI after cross over from chemotherapy. Across the 340 patients who were treated in Study 1, the median age was 53 years; 16% of patients were older than 65 years. A total of 62% of patients were female and 46% were Asian.
Serious adverse events were reported in 34% of patients treated with XALKORI. The most frequent serious adverse events reported in patients treated with XALKORI were dyspnea (4.1%) and pulmonary embolism (2.9%). Fatal adverse events in XALKORI-treated patients occurred in 2.3% patients, consisting of septic shock, acute respiratory failure, and diabetic ketoacidosis.
Dose reductions due to adverse reactions were required in 6% of XALKORI-treated patients. The most frequent adverse reactions that led to dose reduction in these patients were nausea (1.8%) and elevated transaminases (1.8%).
Permanent discontinuation of XALKORI treatment for adverse reactions was 8%. The most frequent adverse reactions that led to permanent discontinuation in XALKORI-treated patients were elevated transaminases (1.2%), hepatotoxicity (1.2%), and ILD (1.2%).
Tables 6 and 7 summarize common adverse reactions and laboratory abnormalities in XALKORI-treated patients. (See Table 6.)

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Additional adverse reactions occurring at an overall incidence between 1% and 60% in patients treated with XALKORI included nausea (56%), decreased appetite (30%), fatigue (29%), neuropathy (21%; gait disturbance, hypoesthesia, muscular weakness, neuralgia, neuropathy peripheral, paresthesia, peripheral sensory neuropathy, polyneuropathy, sensory disturbance), rash (11%), renal cyst (5%), ILD (1%; ILD, pneumonitis), syncope (1%), and decreased blood testosterone (1%; hypogonadism). (See Table 7.)

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Previously Treated ALK-Positive Metastatic NSCLC - Study 2 (PROFILE 1007): The data in Table 8 are derived from 343 patients with ALK-positive metastatic NSCLC enrolled in a randomized, multicenter, active-controlled, open-label trial (Study 2). Patients in the XALKORI arm (n=172) received XALKORI 250 mg orally twice daily until documented disease progression, intolerance to therapy, or the investigator determined that the patient was no longer experiencing clinical benefit. A total of 171 patients in the chemotherapy arm received pemetrexed 500 mg/m2 (n=99) or docetaxel 75 mg/m2 (n=72) by intravenous infusion every 3 weeks until documented disease progression, intolerance to therapy, or the investigator determined that the patient was no longer experiencing clinical benefit. Patients in the chemotherapy arm received pemetrexed unless they had received pemetrexed as part of first-line or maintenance treatment.
The median duration of study treatment was 7.1 months for patients who received XALKORI and 2.8 months for patients who received chemotherapy. Across the 347 patients who were randomized to study treatment (343 received at least 1 dose of study treatment), the median age was 50 years; 14% of patients were older than 65 years. A total of 56% of patients were female and 45% of patients were Asian.Serious adverse reactions were reported in 37% of patients treated with XALKORI and 23% of patients in the chemotherapy arm. The most frequent serious adverse reactions reported in patients treated with XALKORI were pneumonia (4.1%), pulmonary embolism (3.5%), dyspnea (2.3%), and ILD (2.9%). Fatal adverse reactions in XALKORI-treated patients in Study 2 occurred in 5% of patients, consisting of: acute respiratory distress syndrome, arrhythmia, dyspnea, pneumonia, pneumonitis, pulmonary embolism, ILD, respiratory failure and sepsis.
Dose reductions due to adverse reactions were required in 16% of XALKORI-treated patients. The most frequent adverse reactions that led to dose reduction in the patients treated with XALKORI were increased ALT (8%) including some patients with concurrent increased AST, QTc prolongation (2.9%), and neutropenia (2.3%).
XALKORI was discontinued for adverse reactions in 15% of patients. The most frequent adverse reactions that led to discontinuation of XALKORI were ILD (1.7%), increased ALT and AST (1.2%), dyspnea (1.2%), and pulmonary embolism (1.2%).
Tables 8 and 9 summarize common adverse reactions and laboratory abnormalities in XALKORI-treated patients. (See Table 8.)

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Additional adverse reactions occurring at an overall incidence between 1% and 30% in patients treated with XALKORI included decreased appetite (27%), fatigue (27%), neuropathy (19%; dysesthesia, gait disturbance, hypoesthesia, muscular weakness, neuralgia, peripheral neuropathy, paresthesia, peripheral sensory neuropathy, polyneuropathy, burning sensation in skin), rash (9%), ILD (4%; acute respiratory distress syndrome, ILD, pneumonitis), renal cyst (4%), esophagitis (2%), hepatic failure (1%), and decreased blood testosterone (1%; hypogonadism). (See Table 9.)

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ROS1-Positive Metastatic NSCLC - Study 3 (PROFILE 1001): The safety profile of XALKORI from Study 3, which was evaluated in 50 patients with ROS1-positive metastatic NSCLC, was generally consistent with the safety profile of XALKORI evaluated in patients with ALK-positive metastatic NSCLC (n=1669). Vision disorders occurred in 92% of patients in Study 3; 90% were Grade 1 and 2% were Grade 2. The median duration of exposure to XALKORI was 34.4 months.
Description of Selected Adverse Reactions: Vision disorders: Vision disorders, most commonly visual impairment, photopsia, blurred vision, or vitreous floaters, occurred in 63% of 1719 patients. The majority (95%) of these patients had Grade 1 visual adverse reactions. There were 0.8% of patients with Grade 3 and 0.2% of patients with Grade 4 visual impairment.
Based on the Visual Symptom Assessment Questionnaire (VSAQ-ALK), patients treated with XALKORI in Studies 1 and 2 reported a higher incidence of visual disturbances compared to patients treated with chemotherapy. The onset of vision disorder generally was within the first week of drug administration. The majority of patients on the XALKORI arms in Studies 1 and 2 (>50%) reported visual disturbances which occurred at a frequency of 4-7 days each week, lasted up to 1 minute, and had mild or no impact (scores 0 to 3 out of a maximum score of 10) on daily activities as captured in the VSAQ-ALK questionnaire.
Neuropathy: Neuropathy, most commonly sensory in nature, occurred in 25% of 1719 patients. Most events (95%) were Grade 1 or Grade 2 in severity.
Renal cysts: Renal cysts were experienced by 3.0% of 1719 patients.
The majority of renal cysts in XALKORI-treated patients were complex. Local cystic invasion beyond the kidney occurred, in some cases with imaging characteristics suggestive of abscess formation. However, across clinical trials no renal abscesses were confirmed by microbiology tests.
Renal toxicity: The estimated glomerular filtration rate (eGFR) decreased from a baseline median of 96.42 mL/min/1.73 m2 (n=1681) to a median of 80.23 mL/min/1.73 m2 at 2 weeks (n=1499) in patients with ALK-positive advanced NSCLC who received XALKORI in clinical trials. No clinically relevant changes occurred in median eGFR from 12 to 104 weeks of treatment. Median eGFR slightly increased (83.02 mL/min/1.73 m2) 4 weeks after the last dose of XALKORI. Overall, 76% of patients had a decrease in eGFR to <90 mL/min/1.73 m2, 38% had a decrease to eGFR to <60 mL/min/1.73 m2, and 3.6% had a decrease to eGFR to <30 mL/min/1.73 m2.
Postmarketing Experience: The following additional adverse reaction has been identified during post approval use of XALKORI. Because this reaction is reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate the frequency or establish a causal relationship to drug exposure.
Investigations: Blood creatine phosphokinase increased.
Drug Interactions
Effect of Other Drugs on XALKORI: Strong or Moderate CYP3A Inhibitors: Concomitant use of crizotinib with strong CYP3A inhibitors increases crizotinib plasma concentrations [see Pharmacology: Pharmacokinetics under Actions], which may increase the risk of adverse reactions of XALKORI. Avoid concomitant use of strong CYP3A inhibitors. If concomitant use of strong CYP3A inhibitors is unavoidable, reduce the XALKORI dosage [see Dosage Modifications for Moderate and Severe Hepatic Impairment under Dosage & Administration]. Avoid grapefruit or grapefruit juice which may also increase plasma concentrations of crizotinib. Use caution with concomitant use of moderate CYP3A inhibitors.
Strong CYP3A Inducers: Concomitant use of crizotinib with strong CYP3A inducers decreases crizotinib plasma concentrations [see Pharmacology: Pharmacokinetics under Actions] which may decrease the efficacy of XALKORI. Avoid concomitant use of strong CYP3A inducers.
Effect of XALKORI on Other Drugs: CYP3A Substrates: Concomitant use of crizotinib increases plasma concentrations of CYP3A substrates [see Pharmacology: Pharmacokinetics under Actions], which may increase the risk of adverse reactions of these substrates. Avoid concomitant use of XALKORI with CYP3A substrates where minimal concentration changes may lead to serious adverse reactions. If concomitant use of XALKORI is unavoidable, decrease the CYP3A substrate dosage in accordance with approved product labeling.
Drugs That Prolong the QT Interval: XALKORI can prolong the QT/QTc interval. Avoid concomitant use of XALKORI with drugs that prolong the QT interval [see QT Interval Prolongation under Precautions and Pharmacology: Pharmacodynamics under Actions].
Drugs That Cause Bradycardia: XALKORI can cause bradycardia. Avoid concomitant use of XALKORI with drugs that cause bradycardia (e.g., beta-blockers, non-dihydropyridine calcium channel blockers, clonidine, and digoxin) [see Cardiac Failure under Precautions].
Storage
Store below 30°C.
ATC Classification
L01XE16 - crizotinib ; Belongs to the class of protein kinase inhibitors, other antineoplastic agents. Used in the treatment of cancer.
Presentation/Packing
Cap 200 mg (size 1, white opaque/pink opaque hard gelatin capsule, containing a white to pale yellow powder with CRZ 200 printed on the body in black ink and Pfizer (logo) printed on the cap in black ink) x 60's. 250 mg (size 0, pink opaque/pink opaque hard gelatin capsule, containing a white to pale yellow powder with CRZ 250 printed on the body in black ink and Pfizer (logo) printed on the cap in black ink) x 60's.
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