ALECENSA® (alectinib) Safety Information

Indications

ALECENSA is a kinase inhibitor indicated for:

adjuvant treatment in adult patients following tumor resection of anaplastic lymphoma kinase (ALK)-positive non-small cell lung cancer (NSCLC) (tumors ≥4 cm or node positive), as detected by an FDA-approved test
treatment of adult patients with ALK-positive metastatic NSCLC as detected by an FDA-approved test

Warnings and Precautions

Hepatotoxicity

Severe hepatotoxicity, including drug-induced liver injury, occurred in patients treated with ALECENSA. Hepatotoxicity occurred in 41% of 533 patients treated with ALECENSA and the incidence of Grade ≥3 hepatotoxicity was 8%. In the ALINA study, hepatotoxicity occurred in 61% of patients treated with ALECENSA and the incidence of Grade ≥3 hepatotoxicity was 4.7%. The majority (72% of 136 patients) of elevated transaminases occurred during the first 3 months of treatment. Treatment discontinuation due to hepatotoxicity occurred in 3.6% of patients who received ALECENSA in the pooled safety population and 1.6% of patients treated in the ALINA study
Concurrent elevations in alanine transaminase (ALT) or aspartate transaminase (AST) greater than or equal to 3 times the ULN and total bilirubin greater than or equal to 2 times the ULN, with normal alkaline phosphatase, occurred in less than 1% of patients treated with ALECENSA. Three patients with Grades 3-4 AST/ALT elevations had drug-induced liver injury (documented by liver biopsy in 2 cases)
Monitor liver function tests including ALT, AST, and total bilirubin every 2 weeks during the first 3 months of treatment, then once a month and as clinically indicated, with more frequent testing in patients who develop transaminase and bilirubin elevations. Based on the severity of the adverse drug reaction, withhold ALECENSA and resume at a reduced dose, or permanently discontinue ALECENSA

Interstitial Lung Disease (ILD)/Pneumonitis

ILD/pneumonitis occurred in 1.3% of 533 patients treated with ALECENSA with 0.4% of patients experiencing Grade 3 ILD/pneumonitis. Five patients (0.9%) discontinued ALECENSA due to ILD/pneumonitis. The median time-to-onset of Grade 3 or higher ILD/pneumonitis was 2.1 months (range: 0.6 months to 3.6 months)
Promptly investigate for ILD/pneumonitis in any patient who presents with worsening of respiratory symptoms indicative of ILD/pneumonitis (eg, dyspnea, cough, and fever)
Immediately withhold ALECENSA treatment in patients diagnosed with ILD/pneumonitis and permanently discontinue ALECENSA if no other potential causes of ILD/pneumonitis have been identified

Renal Impairment

Renal impairment occurred in 12% of 533 patients treated with ALECENSA, including Grade ≥3 in 1.7% of patients, of which 0.4% were fatal events
The median time to Grade ≥3 renal impairment was 3.7 months (range 0.5 to 31.8 months). Dosage modifications for renal impairment were required in 2.4% of patients
Permanently discontinue ALECENSA for Grade 4 renal toxicity. Withhold ALECENSA for Grade 3 renal toxicity until recovery to less than or equal to 1.5 times ULN, then resume at reduced dose

Bradycardia

Symptomatic bradycardia occurred in patients treated with ALECENSA. Bradycardia occurred in 11% of 533 patients treated with ALECENSA. Twenty percent of 521 patients for whom serial electrocardiograms (ECGs) were available had post-dose heart rates of less than 50 beats per minute (bpm)
Monitor heart rate and blood pressure regularly. For asymptomatic bradycardia, dose modification is not required. For symptomatic bradycardia that is not life-threatening, withhold ALECENSA until recovery to asymptomatic bradycardia or to a heart rate ≥60 bpm and evaluate concomitant medications known to cause bradycardia, as well as anti-hypertensive medications. If bradycardia is attributable to a concomitant medication, resume ALECENSA at a reduced dose upon recovery to asymptomatic bradycardia or to a heart rate of ≥60 bpm, with frequent monitoring as clinically indicated
Permanently discontinue ALECENSA in cases of life-threatening bradycardia if no contributing concomitant medication is identified or for recurrence of life-threatening bradycardia

Severe Myalgia and Creatine Phosphokinase (CPK) Elevation

Severe myalgia and creatine phosphokinase (CPK) elevation occurred in patients treated with ALECENSA. Myalgia (including muscle- and musculoskeletal-related reactions) occurred in 31% of 533 patients treated with ALECENSA, including Grade ≥3 in 0.8% of patients. Dosage modifications for myalgia events were required in 2.1% of patients
Of the 491 with CPK laboratory data available, elevated CPK occurred in 56% of patients, including 6% Grade ≥3. The median time to Grade ≥3 CPK elevation was 15 days (interquartile range 15-337 days). Dosage modifications for elevation of CPK occurred in 5% of patients. In the ALINA study, elevated CPK occurred in 77% of 128 patients with CPK laboratory data, including 6% Grade ≥3 elevations
Advise patients to report any unexplained muscle pain, tenderness, or weakness. Assess CPK levels every 2 weeks for the first month of treatment and as clinically indicated in patients reporting symptoms. Based on the severity of the CPK elevation, withhold ALECENSA, then resume or reduce dose

Hemolytic Anemia

Hemolytic anemia occurred in patients treated with ALECENSA. Hemolytic anemia was initially reported with ALECENSA in the postmarketing setting, including cases associated with a negative direct antiglobulin test (DAT) result. Assessments for the determination of hemolytic anemia were subsequently collected in the ALINA study, where hemolytic anemia was observed in 3.1% of patients treated with ALECENSA
If hemolytic anemia is suspected, withhold ALECENSA and initiate appropriate laboratory testing. If hemolytic anemia is confirmed, consider resuming at a reduced dose upon resolution or permanently discontinue ALECENSA

Embryo-Fetal Toxicity

ALECENSA can cause fetal harm when administered to pregnant women. Administration of alectinib to pregnant rats and rabbits during the period of organogenesis resulted in embryo-fetal toxicity and abortion at maternally toxic doses with exposures approximately 2.7-fold those observed in humans with alectinib 600 mg twice daily. Advise pregnant women of the potential risk to a fetus
Advise females of reproductive potential to use effective contraception during treatment with ALECENSA and for 5 weeks following the last dose
Advise males with female partners of reproductive potential to use effective contraception during treatment with ALECENSA and for 3 months following the last dose

Most Common Adverse Reactions

The most common adverse reactions (≥20%) were hepatotoxicity (41%), constipation (39%), fatigue (36%), myalgia (31%), edema (29%), rash (23%), and cough (21%)

Use in Specific Populations

Lactation

Because of the potential for serious adverse reactions in breastfed infants from ALECENSA, advise a lactating woman not to breastfeed during treatment with ALECENSA and for 1 week after the last dose

You may report side effects to the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. You may also report side effects to Genentech at 1-888-835-2555.

Please see additional Important Safety Information in full Prescribing Information.

Criteria	ALECENSA dose modification
ALT or AST elevation of >5X ULN with total bilirubin ≤2X ULN	Temporarily withhold until recovery to baseline or to ≤3X ULN, then resume at reduced dose. See dose reduction schedule.
ALT or AST elevation >3X ULN with total bilirubin elevation >2X ULN in the absence of cholestasis or hemolysis	Permanently discontinue ALECENSA.
Total bilirubin elevation >3X ULN	Temporarily withhold until recovery to baseline or to ≤1.5X ULN, then resume at reduced dose. See dose reduction schedule.
Any grade treatment-related ILD/pneumonitis	Permanently discontinue ALECENSA.
Grade 3 renal impairment	Temporarily withhold until serum creatinine recovers to ≤1.5X ULN, then resume at reduced dose. See dose reduction schedule.
Grade 4 renal impairment	Permanently discontinue ALECENSA.
Symptomatic bradycardia	Withhold ALECENSA until recovery to asymptomatic bradycardia or to a heart rate of ≥60 bpm. If contributing concomitant medication is identified and discontinued, or its dose is adjusted, resume ALECENSA at previous dose upon recovery to asymptomatic bradycardia or to a heart rate of ≥60 bpm. If no contributing concomitant medication is identified, or if contributing concomitant medications are not discontinued or dose modified, resume ALECENSA at reduced dose upon recovery to asymptomatic bradycardia or to a heart rate of ≥60 bpm. See dose reduction schedule.
Bradycardia^a (life-threatening consequences, urgent intervention indicated)	Permanently discontinue ALECENSA if no contributing concomitant medication is identified. If contributing concomitant medication is identified and discontinued, or its dose is adjusted, resume ALECENSA at reduced dose upon recovery to asymptomatic bradycardia or to a heart rate of ≥60 bpm, with frequent monitoring as clinically indicated. Permanently discontinue ALECENSA in case of recurrence. See dose reduction schedule.
CPK elevation of >5X ULN	Temporarily withhold until recovery to baseline or to ≤2.5X ULN, then resume at same dose.
CPK elevation >10X ULN or second occurrence of CPK elevation of >5X ULN	Temporarily withhold until recovery to baseline or to ≤2.5X ULN, then resume at reduced dose. See dose reduction schedule.
Hemolytic anemia	Withhold ALECENSA if hemolytic anemia is suspected. Upon resolution, resume at reduced dose or permanently discontinue. See dose reduction schedule.

^aHeart rate <60 bpm.
ALT=alanine transaminase; AST=aspartate transaminase; bpm=beats per minute; CPK=creatine phosphokinase; ILD=interstitial lung disease; ULN=upper limit of normal.