Leukemias, lymphomas, and other hematologic cancers:
Indications for: FARYDAK
Multiple myeloma, in patients who have received at least two prior therapies (including bortezomib and an immunomodulatory agent), in combination with bortezomib and dexamethasone.
Adult Dosage:
Swallow whole with water. Take at same time on scheduled days. Initially 20mg once every other day for 3 doses/wk in Weeks 1 and 2 of each 21-day cycle for up to 8 cycles. Consider 8 more cycles for patients with clinical benefit if no severe or significant toxicity; max 16 cycles (48 wks). Give with bortezomib inj and oral dexamethasone per scheduled day. Hepatic impairment: mild: initially 15mg; moderate: initially 10mg; severe: avoid. Concomitant strong CYP3A inhibitors: initially 10mg. Dose adjustments and modifications for toxicity: see full labeling.
Children Dosage:
Not established.
Boxed Warning:
Fatal and serious toxicities: severe diarrhea and cardiac toxicities.
FARYDAK Warnings/Precautions:
Risk of severe diarrhea and cardiac toxicities. Monitor hydration and electrolytes at baseline, weekly during therapy, or more as indicated. Initiate antidiarrheals at onset of diarrhea; interrupt dose if 4–6 stools/day. Do not initiate if history of recent MI or unstable angina, QTcF >450msec, significant baseline ST-segment or T-wave abnormalities, active infections. Perform ECG prior to initiation and repeat during treatment as indicated. Correct electrolyte abnormalities prior to initiation and monitor; interrupt if QTcF ≥480msec; discontinue if QT prolongation does not resolve. Serious hemorrhage. Obtain CBC prior to initiation; monitor weekly during therapy or more as indicated. Monitor for infections; treat and consider interruption or discontinuation if diagnosed. Monitor liver function prior to and during treatment; consider dose adjustments if abnormal tests observed. ESRD or dialysis: not studied. Elderly: monitor for toxicity more frequently (esp. GI, myelosuppression, cardiac). Embryo-fetal toxicity. Pregnancy: avoid. Obtain pregnancy test prior to and during treatment. Use effective contraception during and for ≥3 months after last dose; males: use condoms during and for ≥6 months after last dose. Nursing mothers: not recommended.
FARYDAK Classification:
Histone deacetylase inhibitor.
FARYDAK Interactions:
Potentiated by strong CYP3A inhibitors (eg, boceprevir, clarithromycin, conivaptan, indinavir, itraconazole, ketoconazole, lopinavir/ritonavir, others); see Adults. Avoid star fruit, pomegranate or grapefruit juice. Avoid concomitant strong CYP3A inducers. Avoid concomitant sensitive CYP2D6 substrates (eg, atomoxetine, desipramine, dextromethorphan, metoprolol, nebivolol, perphenazine, tolterodine, venlafaxine) or substrates with narrow therapeutic index (eg, thioridazine, pimozide); if unavoidable, monitor frequently. Concomitant antiarrhythmics or QT prolonging drugs: not recommended. Antiemetics that prolong QT interval (eg, dolasetron, ondansetron, tropisetron): monitor ECG frequently.
Adverse Reactions:
Diarrhea, fatigue, nausea, peripheral edema, decreased appetite, pyrexia, vomiting, electrolyte imbalance, increased creatinine, thrombocytopenia, lymphopenia, leukopenia, neutropenia, anemia.
REMS:
Generic Drug Availability:
NO
How Supplied:
Blister packs—6
