atric Use
Of 598 patients in clinical studies of Kyprolis monotherapy dosed at 20/27 mg/m2 by up to 10-minute infusion, 49% were 65 and over, while 16% were 75 and over. The incidence of serious adverse events was 44% in patients < 65 years of age, 55% in patients 65 to 74 years of age, and 56% in patients ≥ 75 years of age [see Warnings and Precautions (5.1)]. In a single-arm, multicenter clinical trial of Kyprolis monotherapy dosed at 20/27 mg/m2 (N = 266), no overall differences in effectiveness were observed between older and younger patients.
Of 392 patients treated with Kyprolis in combination with lenalidomide and dexamethasone, 47% were 65 and over and 11% were 75 years and over. The incidence of serious adverse events was 50% in patients < 65 years of age, 70% in patients 65 to 74 years of age, and 74% in patients ≥ 75 years of age [see Warnings and Precautions (5.1)]. No overall differences in effectiveness were observed between older and younger patients.
Of 463 patients treated with Kyprolis dosed at 20/56 mg/m2 by 30-minute infusion in combination with dexamethasone, 52% were 65 and over and 17% were 75 and over. The incidence of serious adverse events was 44% in patients < 65 years of age, 50% in patients 65 to 74 years of age, and 57% in patients ≥ 75 years of age [see Warnings and Precautions (5.1)]. No overall differences in effectiveness were observed between older and younger patients.
8.6 Renal Impairment
No starting dose adjustment is required in patients with baseline mild, moderate, or severe renal impairment or patients on chronic dialysis. The pharmacokinetics and safety of Kyprolis were eva luated in a Phase 2 trial in patients with normal renal function and those with mild, moderate, and severe renal impairment and patients on chronic dialysis. In this study, the pharmacokinetics of Kyprolis was not influenced by the degree of baseline renal impairment, including the patients on dialysis. Since dialysis clearance of Kyprolis concentrations has not been studied, the drug should be administered after the dialysis procedure [see Clinical Pharmacology (12.3)].
10 OVERDOSAGE
Acute onset of chills, hypotension, renal insufficiency, thrombocytopenia, and lymphopenia has been reported following a dose of 200 mg of Kyprolis administered in error.
There is no known specific antidote for Kyprolis overdosage. In the event of overdose, the patient should be monitored, specifically for the side effects and/or adverse reactions listed in Adverse Reactions (6).
11 DESCRIPTION
Kyprolis (carfilzomib) is an antineoplastic agent available for intravenous use only. Kyprolis is a sterile, white to off-white lyophilized powder and is available as a single-dose vial. Each 60 mg vial of Kyprolis contains 60 mg of carfilzomib, 3000 mg sulfobutylether beta-cyclodextrin, 57.7 mg citric acid, and sodium hydroxide for pH adjustment (target pH 3.5).
Carfilzomib is a modified tetrapeptidyl epoxide, isolated as the crystalline free base. The chemical name for carfilzomib is (2S)-N-((S)-1-((S)-4-methyl-1-((R)-2-methyloxiran-2-yl)-1-oxopentan-2-ylcarbamoyl)-2-phenylethyl)-2-((S)-2-(2-morpholinoacetamido)-4-phenylbutanamido)-4-methylpentanamide. Carfilzomib has the following structure:
Carfilzomib is a crystalline substance with a molecular weight of 719.9. The molecular formula is C40H57N5O7. Carfilzomib is practically insoluble in water and very slightly soluble in acidic conditions.
12 CLINICAL PHARMACOLOGY
12.1 Mechanis |
