ved. Upon resolution, resume at a reduced dose or discontinue LENVIMA depending on the severity and persistence of neurologic symptoms [see DOSAGE AND ADMINISTRATION (2.4)].
5.12 Hemorrhagic Events
Across clinical studies in which 1160 patients received LENVIMA monotherapy, Grade 3 or greater hemorrhage was reported in 2% of patients.
In Study 1 in DTC, hemorrhagic events occurred in 35% of LENVIMA-treated patients and in 18% of the placebo group. However, the incidence of Grade 3 to 5 hemorrhage was similar between arms at 2% and 3%, respectively. There was 1 case of fatal intracranial hemorrhage among 16 patients who received LENVIMA and had CNS metastases at baseline. The most frequently reported hemorrhagic event was epistaxis (11% Grade 1 and 1% Grade 2). Discontinuation due to hemorrhagic events occurred in 1% of LENVIMA-treated patients.
In Study 2 in RCC, hemorrhagic events occurred in 34% of patients in the LENVIMA + everolimus-treated group and 26% of patients in the everolimus-treated group. The most frequently reported hemorrhagic event was epistaxis (LENVIMA + everolimus 23% and everolimus 24%). Grade 3 or greater events occurred in 8% of LENVIMA + everolimus-treated patients and in 2% of everolimus-treated patients. In the LENVIMA + everolimus-treated patients, this included one fatal cerebral hemorrhage. Discontinuation due to a hemorrhagic event occurred in 3% of patients in the LENVIMA + everolimus-treated group.
Serious tumor related bleeds, including fatal hemorrhagic events in LENVIMA-treated patients, have occurred in clinical trials and been reported in post-marketing experience. In post-marketing surveillance, serious and fatal carotid artery hemorrhages were seen more frequently in patients with anaplastic thyroid carcinoma (ATC) than in other tumor types. The safety and effectiveness of LENVIMA in patients with ATC have not been demonstrated in clinical trials.
Consider the risk of severe or fatal hemorrhage associated with tumor invasion/infiltration of major blood vessels (e.g. carotid artery). Withhold LENVIMA for the development of Grade 3 hemorrhage until resolved to Grade 0 to 1. Either resume at a reduced dose or discontinue LENVIMA depending on the severity and persistence of hemorrhage. Discontinue LENVIMA in patients who experience Grade 4 hemorrhage [see DOSAGE AND ADMINISTRATION (2.4)].
5.13 Impairment of Thyroid Stimulating Hormone Suppression/Thyroid Dysfunction
LENVIMA impairs exogenous thyroid suppression. In Study 1 in DTC, 88% of all patients had a baseline thyroid stimulating hormone (TSH) level less than or equal to 0.5 mU/L. In those patients with a normal TSH at baseline, elevation of TSH level above 0.5 mU/L was observed post baseline in 57% of LENVIMA-treated patients as compared with 14% of patients receiving placebo.
In Study 2 in RCC, Grade 1 or 2 hypothyroidism occurred in 24% of patients in the LENVIMA + everolimus-treated group and 2% of patients in the everolimus-treated group. In those patients with a normal or low TSH at baseline, an elevation of TSH was observed post baseline in 60 % of LENVIMA + everolimus-treated patients as compared with 3% of patients receiving everolimus monotherapy.
Monitor thyroid function before initiation of, and at least monthly throughout, treatment with LENVIMA. Treat hypothyroidism according to standard medical practice to maintain a euthyroid state.
5.14 Embryofetal Toxicity
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