WARNINGS
Included as part of the PRECAUTIONS section.
PRECAUTIONS
Diarrhea
Severe diarrhea occurred in 25% of patients treated with
FARYDAK [see ADVERSE REACTIONS]. Diarrhea of any grade occurred in 68%
of patients treated with FARYDAK compared to 42% of patients in the control
arm. Diarrhea can occur at any time. Monitor patient hydration status and
electrolyte blood levels, including potassium, magnesium and phosphate, at
baseline and weekly (or more frequently as clinically indicated) during therapy
and correct to prevent dehydration and electrolyte disturbances. Initiate
anti-diarrheal medication at the onset of diarrhea. Interrupt FARYDAK at the
onset of moderate diarrhea (4 to 6 stools per day) [see DOSAGE AND
ADMINISTRATION]. Ensure that patients initiating therapy with FARYDAK have
anti-diarrheal medications on hand.
Cardiac Toxicities
Severe and fatal cardiac ischemic events, as well as
severe arrhythmias, and electrocardiogram (ECG) changes occurred in patients
receiving FARYDAK. Arrhythmias occurred in 12% of patients receiving FARYDAK,
compared to 5% of patients in the control arm. Cardiac ischemic events occurred
in 4% of patients treated with FARYDAK compared with 1% of patients in the
control arm. Do not initiate FARYDAK treatment in patients with history of
recent myocardial infarction or unstable angina.
Electrocardiographic abnormalities such as ST-segment
depression and T-wave abnormalities also occurred more frequently in patients
receiving FARYDAK compared to the control arm: 22% versus 4% and 40% versus
18%, respectively. FARYDAK may prolong cardiac ventricular repolarization (QT
interval). Do not initiate treatment with FARYDAK in patients with a QTcF
> 450 msec or clinically significant baseline ST-segment or T-wave
abnormalities. Arrhythmias may be exacerbated by electrolyte abnormalities. If
during treatment with FARYDAK, the QTcF increases to ≥ 480 msec, interrupt
treatment. Correct any electrolyte abnormalities. If QT prolongation does not
resolve, permanently discontinue treatment with FARYDAK.
Obtain ECG at baseline and periodically during treatment
as clinically indicated. Monitor electrolytes during treatment with FARYDAK and
correct abnormalities as clinically indicated.
Hemorrhage
Fatal and serious hemorrhage occurred during treatment
with FARYDAK. In the clinical trial in patients with relapsed multiple myeloma,
5 patients receiving FARYDAK compared to 1 patient in the control arm died due
to a hemorrhagic event. All 5 patients had grade ≥ 3 thrombocytopenia at
the time of the event. Grade 3/4 hemorrhage was reported in 4% of patients
treated with the FARYDAK arm and 2% of patients in the control arm.
Myelosuppression
FARYDAK causes myelosuppression, including severe
thrombocytopenia, neutropenia and anemia. In the clinical trial in patients
with relapsed multiple myeloma, 67% of patients treated with FARYDAK developed
Grade 3 to 4 thrombocytopenia compared with 31% in the control arm.
Thrombocytopenia led to treatment interruption and or dose modification in 31%
of patients receiving FARYDAK compared to 11% of patients in the control arm.
For patients receiving FARYDAK, 33% required platelet transfusion compared to 10%
of patients in the control arm [see DOSAGE AND ADMINISTRATION].
Severe neutropenia occurred in 34% of patients treated
with FARYDAK, compared to 11% of patients in the control arm. Neutropenia led
to treatment interruption and or dose modification in 10% of patients receiving
FARYDAK. The use of granulocyte-colony stimulating factor (G-CSF) was higher in
patients treated with FARYDAK compared to the control arm, 13% compared to 4%,
respectively.
Obtain a baseline CBC and monitor the CBC weekly during
treatment (or more frequently if clinically indicated). Dose modifications are
recommended for Myelosuppression [see DOSAGE AND ADMINISTRATION]. Monitor
CBCs more frequently in patients over 65 years of age due to the increased
frequency of myelosuppression in these patients [see Use in Specific
Populations].
Infections
Localized and systemic infections, including pneumonia,
bacterial infections, invasive fungal infections, and viral infections have
been reported in patients taking FARYDAK. Severe infections occurred in 31% of
patients (including 10 deaths) treated with FARYDAK compared with 24% of
patients (including 6 deaths) in the control arm. Infections of all grades
occurred at a similar rate between arms. FARYDAK treatment should not be
initiated in patients with active infections. Monitor patients for signs and
symptoms of infections during treatment; if a diagnosis of infection is made,
institute appropriate anti-infective treatment promptly and consider
interruption or discontinuation of FARYDAK.
Hepatotoxicity
Hepatic dysfunction, primarily elevations in
aminotransferases and total bilirubin, occurred in patients treated with
FARYDAK. Liver function should be monitored prior to treatment and regularly
during treatment. If abnormal liver function tests are observed dose
adjustments may be considered and the patient should be followed until values
return to normal or pretreatment levels [see DOSAGE AND ADMINISTRATION, CLINICAL
PHARMACOLOGY].
Embryo-Fetal Toxicity
FARYDAK can cause fetal harm when administered to a
pregnant woman. Panobinostat was teratogenic in rats and rabbits. If FARYDAK is
used during pregnancy, or if the patient becomes pregnant while taking FARYDAK,
the patient should be apprised of the potential hazard to the fetus [see Use
in Specific Populations].
Advise females of reproductive potential to avoid
becoming pregnant while taking FARYDAK. Advise sexually-active females of
reproductive potential to use effective contraception while taking FARYDAK and
for at least 3 months after the last dose of FARYDAK.
Advise sexually active men to use condoms while on
treatment and for 6 months after their last dose of FARYDAK [see Use in
Specific Populations].
Patient Counseling Information
Advise the patient to read the FDA-approved patient
labeling (Medication Guide).
Dosing And Administration
Instruct patients to take FARYDAK exactly as prescribed
and not to change their dose or to stop taking FARYDAK unless they are told to
do so by their healthcare provider. If a patient misses a dose, advise them to
take their dose as soon possible and up to 12 hours after the specified dose
time. If vomiting occurs advise the patient not to repeat the dose, but to take
the next usual prescribed dose on schedule.
Cardiac Toxicity/Electrocardiographic Changes
Inform patients to report chest pain or discomfort, changes
in heart beat (fast or slow), palpitations, lightheadedness, fainting,
dizziness, blue discoloration of lips, shortness of breath, and swelling of
lower limbs or skin as these may be warning signs of a heart problem.
Bleeding Risk
Inform patients that FARYDAK is associated with
thrombocytopenia. Advise patients to contact their healthcare provider right
away if they experience any signs of bleeding and inform patients that it might
take longer than usual for them to stop bleeding. Advise patients of the need
to monitor blood chemistry and hematology prior to the start of FARYDAK therapy
and periodically thereafter.
Infections
Inform patients of the risk of neutropenia and severe and
life-threatening infections. Instruct patients to contact their physician
immediately if they develop a fever and/or any exhibit any signs of infection.
Gastrointestinal Toxicities
Inform patients that FARYDAK can cause severe nausea,
vomiting and diarrhea which may require medication for treatment. Advise
patients to contact their physician at the start of diarrhea, for persistent
vomiting, or signs of dehydration. Inform patients to consult with their
physicians prior to using medications with laxative properties.
Pregnancy
Inform patients that FARYDAK can cause fetal harm. Advise
women of reproductive potential to avoid pregnancy while taking FARYDAK. Advise
women of reproductive potential to use effective contraception while taking
FARYDAK and for at least 3 months after the last dose of the drug.
Advise sexually active men to use condoms while receiving
FARYDAK and for at least 6 months following the last dose of the drug.
Lactation
Advise women not to breastfeed while taking FARYDAK.
Nonclinical Toxicology
Carcinogenesis, Mutagenesis, Impairment Of Fertility
Carcinogenicity studies have not been conducted with
panobinostat.
Panobinostat was mutagenic in the Ames assay, and caused
endo-reduplication (increased number of chromosomes) in human peripheral blood
lymphocytes in vitro and DNA damage in an in vitro COMET assay in mouse
lymphoma L5178Y cells.
FARYDAK may impair male and female fertility. In an oral
fertility study conducted in rats, 10, 30, or 100 mg/kg doses of panobinostat
were administered to females 3 times weekly (Days 1, 3, and 5) for 2 weeks
prior to mating, then during the mating period, and on gestation Days 0, 3, and
6. An increase in early resorption and/or post-implantation loss in female rats
were observed at doses ≥ 10 mg/kg. Number of pregnancies was reduced at
doses ≥ 30 mg/kg. Prostate atrophy accompanied by reduced secretory
granules, and testicular degeneration, oligospermia and increased epididymal
debris were observed in repeated dose oral toxicity studies in dogs, e.g., in
the 4-week study at the dose of 1.5 mg/kg. These effects were not completely
reversed following a 4-week nondosing period.
Use In Specific Populations
Pregnancy
Risk Summary
FARYDAK can cause fetal harm when administered to a
pregnant woman. Panobinostat was teratogenic in rats and rabbits. If FARYDAK is
used during pregnancy or if the patient becomes pregnant while taking this
drug, apprise the patient of the potential hazard to the fetus.
Data
Animal Data
In embryofetal development studies, panobinostat was
administered orally 3 times per week during the period of organogenesis to
pregnant rats (30, 100, and 300 mg/kg) and rabbits (10, 40, and 80 mg/kg). In
rats, maternal toxicity including death was observed at doses greater than or
equal to 100 mg/kg/day. Embryofetal toxicities occurred at 30 mg/kg (the only
dose with live fetuses) and consisted of fetal malformations and anomalies,
such as cleft palate, short tail, extra presacral vertebrae, and extra ribs.
The dose of 30 mg/kg resulted in exposures (AUCs) approximately 3-fold the
human exposure at the human dose of 20 mg. In rabbits, maternal toxicity
including death was observed at doses greater than or equal to 80 mg/kg.
Increased pre- and/or post-implantation loss occurred at all doses tested.
Embryofetal toxicities included decreased fetal weights at doses greater than
or equal to 40 mg/kg and malformations (absent digits, cardiac interventricular
septal defects, aortic arch interruption, missing gallbladder, and irregular
ossification of skull) at 80 mg/kg. The dose of 40 mg/kg in rabbits results in
systemic exposure approximately 4-fold the human exposure and the dose of 80
mg/kg results in exposure 7-fold the human exposure, at the human dose of 20
mg.
Lactation
Risk Summary
It is not known whether FARYDAK is excreted in human
milk. Because many drugs are excreted in human milk and because of the
potential for serious adverse drug reactions in nursing infants, decide whether
to discontinue nursing or to discontinue the drug, taking into account the
importance of the drug to the mother.
Females And Males Of Reproductive Potential
Embryofetal toxicity including malformations occurred in
embryofetal development studies in rats [see Pregnancy].
Pregnancy Testing
Perform pregnancy testing in women of childbearing
potential prior to starting treatment with FARYDAK and intermittently during
treatment with FARYDAK.
Contraception
Females
FARYDAK can cause fetal harm. Advise females of
reproductive potential to avoid becoming pregnant while taking FARYDAK. Advise
sexually-active females of reproductive potential to use effective
contraception while taking FARYDAK and for at least 3 months after the last
dose of FARYDAK. Advise patients to contact their healthcare provider if they
become pregnant, or if pregnancy is suspected, while taking FARYDAK [see Use
in Specific Populations].
Males
Advise sexually active men to use condoms while on
treatment and for at least 6 months after their last dose of FARYDAK.
Pediatric Use
The safety and efficacy of FARYDAK in children has not
been established.
Geriatric Use
In clinical trials of FARYDAK in patients with multiple
myeloma, 42% of patients were 65 years of age or older.
Patients over 65 years of age had a higher frequency of
selected adverse events and of discontinuation of treatment due to adverse
events. In patients over 65 years of age, the incidence of deaths not related
to disease progression was 9% in patients ≥ 65 years of age compared to 5
% in patients < 65.
In the randomized clinical trial in patients with
relapsed multiple myeloma, no major differences in effectiveness were observed
in older patients compared to younger patients. Adverse reactions leading to
permanent discontinuation occurred in 45% of patients ≥ 65 years of age in
the FARYDAK treatment arm compared to 30% of patients < 65 years age in the
FARYDAK treatment arm. Monitor for toxicity more frequently in patients over 65
years of age, especially for gastrointestinal toxicity, myelosuppression, and
cardiac toxicity [see WARNINGS AND PRECAUTIONS].
Hepatic Impairment
The safety and efficacy of FARYDAK in patients with
hepatic impairment has not been evaluated.
In a pharmacokinetic trial, patients with mild (bilirubin
≤ 1xULN and AST > 1xULN, or bilirubin > 1.0 to 1.5x ULN and any AST)
or moderate (bilirubin > 1.5x to 3.0x ULN, any AST) hepatic impairment
(NCI-ODWG criteria) had increased AUC of panobinostat by 43% and 105%,
respectively. Reduce the starting dose of FARYDAK in patients with mild or
moderate hepatic impairment. Avoid use in patients with severe hepatic impairment.
Monitor patients with hepatic impairment frequently for adverse events [see
DOSAGE AND ADMINISTRATION, WARNINGS AND PRECAUTIONS, CLINICAL
PHARMACOLOGY].
Renal Impairment
Mild [creatinine clearance (CrCl) ≥ 50 to < 80
mL/min] to severe renal impairment (CrCl < 30 mL/min) did not impact the
plasma exposure of panobinostat. FARYDAK has not been studied in patients with
end stage renal disease (ESRD) or patients on dialysis. The dialyzability of
panobinostat is unknown [see CLINICAL PHARMACOLOGY].