WARNINGS
Included as part of the PRECAUTIONS section.
PRECAUTIONS
Interstitial Lung Disease (ILD)/Pneumonitis
Severe, life-threatening, and fatal pulmonary adverse
reactions consistent with interstitial lung disease (ILD)/pneumonitis have
occurred with ALUNBRIG.
In Trial ALTA (ALTA), ILD/pneumonitis occurred in 3.7% of
patients in the 90 mg group (90 mg once daily) and 9.1% of patients in the
90→180 mg group (180 mg once daily with 7-day lead-in at 90 mg once
daily).
Adverse reactions consistent with possible
ILD/pneumonitis occurred early (within 9 days of initiation of ALUNBRIG; median
onset was 2 days) in 6.4% of patients, with Grade 3 to 4 reactions occurring in
2.7%.
Monitor for new or worsening respiratory symptoms (e.g.,
dyspnea, cough, etc.), particularly during the first week of initiating
ALUNBRIG. Withhold ALUNBRIG in any patient with new or worsening respiratory
symptoms, and promptly evaluate for ILD/pneumonitis or other causes of
respiratory symptoms (e.g., pulmonary embolism, tumor progression, and
infectious pneumonia). For Grade 1 or 2 ILD/pneumonitis, either resume ALUNBRIG
with dose reduction according to Table 1 after recovery to baseline or
permanently discontinue ALUNBRIG. Permanently discontinue ALUNBRIG for Grade 3
or 4 ILD/pneumonitis or recurrence of Grade 1 or 2 ILD/pneumonitis [see
DOSAGE AND ADMINISTRATION and ADVERSE REACTIONS].
Hypertension
In ALTA, hypertension was reported in 11% of patients in
the 90 mg group who received ALUNBRIG and 21% of patients in the 90→180
mg group. Grade 3 hypertension occurred in 5.9% of patients overall.
Control blood pressure prior to treatment with ALUNBRIG.
Monitor blood pressure after 2 weeks and at least monthly thereafter during
treatment with ALUNBRIG. Withhold ALUNBRIG for Grade 3 hypertension despite
optimal antihypertensive therapy. Upon resolution or improvement to Grade 1
severity, resume ALUNBRIG at a reduced dose. Consider permanent discontinuation
of treatment with ALUNBRIG for Grade 4 hypertension or recurrence of Grade 3
hypertension [see DOSAGE AND ADMINISTRATION and ADVERSE REACTIONS].
Use caution when administering ALUNBRIG in combination
with antihypertensive agents that cause bradycardia [see Bradycardia].
Bradycardia
Bradycardia can occur with ALUNBRIG. In ALTA, heart rates
less than 50 beats per minute (bpm) occurred in 5.7% of patients in the 90 mg
group and 7.6% of patients in the 90→180 mg group. Grade 2 bradycardia
occurred in 1 (0.9%) patient in the 90 mg group.
Monitor heart rate and blood pressure during treatment
with ALUNBRIG. Monitor patients more frequently if concomitant use of drug
known to cause bradycardia cannot be avoided [see Hypertension].
For symptomatic bradycardia, withhold ALUNBRIG and review
concomitant medications for those known to cause bradycardia. If a concomitant
medication known to cause bradycardia is identified and discontinued or dose adjusted,
resume ALUNBRIG at the same dose following resolution of symptomatic
bradycardia; otherwise, reduce the dose of ALUNBRIG following resolution of
symptomatic bradycardia. Discontinue ALUNBRIG for life-threatening bradycardia
if no contributing concomitant medication is identified [see DOSAGE AND
ADMINISTRATION].
Visual Disturbance
In ALTA, adverse reactions leading to visual disturbance
including blurred vision, diplopia, and reduced visual acuity, were reported in
7.3% of patients receiving ALUNBRIG in the 90 mg group and 10% of patients in
the 90→180 mg group. Grade 3 macular edema and cataract occurred in one
patient each in the 90→180 mg group.
Advise patients to report any visual symptoms. Withhold
ALUNBRIG and obtain an ophthalmologic evaluation in patients with new or
worsening visual symptoms of Grade 2 or greater severity. Upon recovery of
Grade 2 or Grade 3 visual disturbances to Grade 1 severity or baseline, resume
ALUNBRIG at a reduced dose. Permanently discontinue treatment with ALUNBRIG for
Grade 4 visual disturbances [see DOSAGE AND ADMINISTRATION and ADVERSE
REACTIONS].
Creatine Phosphokinase (CPK) Elevation
In ALTA, creatine phosphokinase (CPK) elevation occurred
in 27% of patients receiving ALUNBRIG in the 90 mg group and 48% of patients in
the 90 mg→180 mg group. The incidence of Grade 3-4 CPK elevation was 2.8%
in the 90 mg group and 12% in the 90→180 mg group.
Dose reduction for CPK elevation occurred in 1.8% of
patients in the 90 mg group and 4.5% in the 90→180 mg group.
Advise patients to report any unexplained muscle pain,
tenderness, or weakness. Monitor CPK levels during ALUNBRIG treatment. Withhold
ALUNBRIG for Grade 3 or 4 CPK elevation. Upon resolution or recovery to Grade 1
or baseline, resume ALUNBRIG at the same dose or at a reduced dose as described
in Table 2 [see DOSAGE AND ADMINISTRATION and ADVERSE REACTIONS].
Pancreatic Enzyme Elevation
In ALTA, amylase elevation occurred in 27% of patients in
the 90 mg group and 39% of patients in the 90→180 mg group. Lipase
elevations occurred in 21% of patients in the 90 mg group and 45% of patients
in the 90→180 mg group. Grade 3 or 4 amylase elevation occurred in 3.7%
of patients in the 90 mg group and 2.7% of patients in the 90→180 mg
group. Grade 3 or 4 lipase elevation occurred in 4.6% of patients in the 90 mg
group and 5.5% of patients in the 90→180 mg group.
Monitor lipase and amylase during treatment with
ALUNBRIG. Withhold ALUNBRIG for Grade 3 or 4 pancreatic enzyme elevation. Upon
resolution or recovery to Grade 1 or baseline, resume ALUNBRIG at the same dose
or at a reduced dose as described in Table 2 [see DOSAGE AND ADMINISTRATION
and ADVERSE REACTIONS].
Hyperglycemia
In ALTA, 43% of patients who received ALUNBRIG
experienced new or worsening hyperglycemia. Grade 3 hyperglycemia, based on
laboratory assessment of serum fasting glucose levels, occurred in 3.7% of
patients. Two of 20 (10%) patients with diabetes or glucose intolerance at
baseline required initiation of insulin while receiving ALUNBRIG.
Assess fasting serum glucose prior to initiation of
ALUNBRIG and monitor periodically thereafter. Initiate or optimize
antihyperglycemic medications as needed. If adequate hyperglycemic control
cannot be achieved with optimal medical management, withhold ALUNBRIG until
adequate hyperglycemic control is achieved and consider reducing the dose of
ALUNBRIG as described in Table 1 or permanently discontinuing ALUNBRIG [see
DOSAGE AND ADMINISTRATION and ADVERSE REACTIONS].
Embryo-Fetal Toxicity
Based on its mechanism of action and findings in animals,
ALUNBRIG can cause fetal harm when administered to pregnant women. There are no
clinical data on the use of ALUNBRIG in pregnant women. Administration of
brigatinib to pregnant rats during the period of organogenesis resulted in
dose-related skeletal anomalies at doses as low as 12.5 mg/kg/day
(approximately 0.7 times the human exposure by AUC at 180 mg once daily) as
well as increased post implantation loss, malformations, and decreased fetal
body weight at doses of 25 mg/kg/day (approximately 1.26 times the human
exposure at 180 mg once daily) or higher.
Advise pregnant women of the potential risk to a fetus.
Advise females of reproductive potential to use effective non-hormonal
contraception during treatment with ALUNBRIG and for at least 4 months
following the final dose. Advise males with female partners of reproductive
potential to use effective contraception during treatment and for at least 3
months after the last dose of ALUNBRIG [see Use in Specific Populations and
CLINICAL PHARMACOLOGY].
Patient Counseling Information
Advise the patient to read the FDA-approved patient
labeling (PATIENT INFORMATION).
Inform patients of the following:
Interstitial Lung Disease (ILD)/Pneumonitis
Inform patients of the symptoms and risks of serious
pulmonary adverse reactions such as ILD/pneumonitis. Advise patients to immediately
report any new or worsening respiratory symptoms [see WARNINGS AND
PRECAUTIONS].
Hypertension
Advise patients of risks of hypertension and to promptly
report signs or symptoms of hypertension [see WARNINGS AND PRECAUTIONS].
Bradycardia
Advise patients to report any symptoms of bradycardia and
to inform their healthcare provider about the use of heart and blood pressure
medications [see WARNINGS AND PRECAUTIONS].
Visual Disturbance
Advise patients to inform their healthcare provider of
any new or worsening vision symptoms [see WARNINGS AND PRECAUTIONS].
Creatine Phosphokinase (CPK) Elevation
Inform patients of the signs and symptoms of creatinine
phosphokinase (CPK) elevation and the need for monitoring during treatment. Advise
patients to inform their healthcare provider of any new or worsening symptoms
of unexplained muscle pain, tenderness, or weakness [see WARNINGS AND
PRECAUTIONS].
Pancreatic Enzyme Elevation
Inform patients of the signs and symptoms of pancreatitis
and the need to monitor for amylase and lipase elevations during treatment [see
WARNINGS AND PRECAUTIONS].
Hyperglycemia
Inform patients of the risks of new or worsening hyperglycemia
and the need to periodically monitor glucose levels. Advise patients with
diabetes mellitus or glucose intolerance that anti-hyperglycemic medications
may need to be adjusted during treatment with ALUNBRIG [see WARNINGS AND
PRECAUTIONS].
Females And Males Of Reproductive Potential
Embryo-Fetal Toxicity
Advise females and males of reproductive potential that
ALUNBRIG can cause fetal harm [see WARNINGS AND PRECAUTIONS and Use
in Specific Populations].
- Advise females of reproductive potential to inform their
healthcare provider of a known or suspected pregnancy and to use effective
non-hormonal contraception during treatment with ALUNBRIG and for at least 4
months after the final dose [see Use in Specific Populations].
- Advise males with female partners of reproductive
potential to use effective contraception during treatment with ALUNBRIG and for
at least 3 months after the final dose [see Use in Specific Populations].
Lactation
Advise females not to breastfeed during treatment with
ALUNBRIG and for at least 1 week following the final dose [see Use in
Specific Populations].
Infertility
Advise males of reproductive potential of the potential
for reduced fertility from ALUNBRIG [see Use in Specific Populations and
Nonclinical Toxicology].
Drug Interactions
Advise patients to inform their health care provider of
all concomitant medications, including prescription medicines, over-the-counter
drugs, vitamins, and herbal products. Inform patients to avoid grapefruit or
grapefruit juice while taking ALUNBRIG [see DRUG INTERACTIONS].
Dosing And Administration
Instruct patients to start with 90 mg of ALUNBRIG once
daily for the first 7 days and if tolerated, increase the dose to 180 mg once
daily. Advise patients to take ALUNBRIG with or without food [see DOSAGE AND
ADMINISTRATION].
Missed Dose
Advise patients that if a dose of ALUNBRIG is
missed or if the patient vomits after taking a dose of ALUNBRIG, not to take an
extra dose, but to take the next dose at the regular time [see DOSAGE AND
ADMINISTRATION].
Nonclinical Toxicology
Carcinogenesis, Mutagenesis, Impairment Of Fertility
Carcinogenicity studies have not been performed with
brigatinib.
Treatment with brigatinib resulted in chromosomal damage
in an in vivo mammalian erythrocyte micronucleus in the rat, but was not
mutagenic in the Ames or in vitro mammalian chromosome aberration tests.
Dedicated animal fertility studies were not conducted
with brigatinib. Testicular toxicity was observed in repeat-dose animal studies
at doses resulting in exposure as low as 0.2 times the exposure in patients at
the 180 mg dose. In rats, findings included lower weight of testes, seminal
vesicles and prostate gland, and testicular tubular degeneration; these effects
were not reversible during the 2-month recovery period. In monkeys, findings
included reduced size of testes along with microscopic evidence of
hypospermatogenesis; these effects were reversible during the recovery period.
Use In Specific Populations
Pregnancy
Risk Summary
Based on its mechanism of
action and findings in animals, ALUNBRIG can cause fetal harm when administered
to a pregnant woman [see Data and CLINICAL PHARMACOLOGY]. There
are no clinical data on the use of ALUNBRIG in pregnant women. Administration
of brigatinib to pregnant rats during the period of organogenesis resulted in
dose-related skeletal anomalies at doses as low as 12.5 mg/kg/day
(approximately 0.7 times the human exposure by AUC at 180 mg once daily) as
well as increased post-implantation loss, malformations, and decreased fetal
body weight at doses of 25 mg/kg/day (approximately 1.26 times the human
exposure at 180 mg once daily) or greater. If this drug is used during
pregnancy, or if the patient becomes pregnant while taking this drug, advise
the patient of the potential risk to a 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
In an embryo-fetal development study in which pregnant
rats were administered daily doses of brigatinib during organogenesis,
dose-related skeletal (incomplete ossification, small incisors) and visceral
anomalies were observed at doses as low as 12.5 mg/kg/day (approximately 0.7
times the human exposure by AUC at 180 mg once daily). Malformations observed
at 25 mg/kg/day (approximately 1.26 times the human AUC at 180 mg once daily)
included anasarca (generalized subcutaneous edema), anophthalmia (absent eyes),
forelimb hyperflexion, small, short and/or bent limbs, multiple fused ribs,
bent scapulae, omphalocele (intestine protruding into umbilicus), and
gastroschisis (intestines protruding through a defect in the abdominal wall)
along with visceral findings of moderate bilateral dilatation of the lateral ventricles.
Lactation
Risk Summary
There are no data regarding the secretion of brigatinib
in human milk or its effects on the breastfed infant or milk production.
Because of the potential for adverse reactions in breastfed infants, advise
lactating women not to breastfeed during treatment with ALUNBRIG and for 1 week
following the final dose.
Females And Males of Reproductive Potential
Contraception
ALUNBRIG can cause fetal harm [see Use in Specific
Populations].
Females
Advise females of reproductive potential to use effective
non-hormonal contraception during treatment with ALUNBRIG and for at least 4
months after the final dose. Counsel patients to use a non-hormonal method of
contraception since ALUNBRIG can render some hormonal contraceptives
ineffective [see DRUG INTERACTION).
Males
Because of the potential for genotoxicity, advise males
with female partners of reproductive potential to use effective contraception
during treatment with ALUNBRIG and for at least 3 months after the final dose [see
Nonclinical Toxicology].
Infertility
Based on findings in male reproductive organs in animals,
ALUNBRIG may cause reduced fertility in males [see Nonclinical Toxicology].
Pediatric Use
The safety and efficacy of ALUNBRIG in pediatric patients
have not been established.
Geriatric Use
Clinical studies of ALUNBRIG did not include sufficient
numbers of patients aged 65 years and older to determine whether they respond
differently from younger patients. Of the 222 patients in ALTA, 19.4% were 65-74
years and 4.1% were 75 years or older. No clinically relevant differences in
safety or efficacy were observed between patients ≥ 65 years and younger
patients.
Hepatic Impairment
No dose adjustment is recommended for patients with mild
hepatic impairment (total bilirubin within upper limit of normal [ULN] and AST
greater than ULN or total bilirubin greater than 1 and up to 1.5 times ULN and
any AST). The pharmacokinetics and safety of ALUNBRIG in patients with moderate
or severe hepatic impairment have not been studied [see CLINICAL
PHARMACOLOGY].
Renal Impairment
No dose adjustment is recommended for patients with mild
and moderate renal impairment [creatinine clearance (CLcr) 30 to 89 mL/min
estimated by Cockcroft-Gault)]. The pharmacokinetics and safety of ALUNBRIG in
patients with severe renal impairment (CLcr 15 to 29 mL/min estimated by
Cockcroft-Gault) have not been studied [see CLINICAL PHARMACOLOGY].