Clinical safety and tolerability of tedizolid phosphate in the treatment of acute bacterial skin and skin structure infections.

BACKGROUND: We evaluated safety and tolerability of tedizolid phosphate at the 200-mg once-daily dose approved for 6-day treatment of skin and skin-structure infections.

RESEARCH DESIGN AND METHODS: Clinical adverse event (AE) and laboratory data were pooled across completed clinical studies (13 phase 1, two phase 2, and two phase 3), for all participants who received ≥1 dose of tedizolid 200 mg, linezolid 600 mg (phase 3 only), or placebo (phase 1 only).

RESULTS: 1280 participants received tedizolid (phase 1: n = 355; phase 2/3: n = 925). In total, 13% received >6 doses of tedizolid (range: 7-21); in phase 2/3, 94% of participants received ≥5 doses (range: 5-10). Drug-related AEs occurred in 27% of participants (most commonly gastrointestinal reactions in 13% of participants and headache in 4%). Most AEs were mild-moderate in severity; <1% of participants discontinued treatment due to AEs. Tedizolid and linezolid had similar frequency, severity, and types of drug-related AEs. Tolerability in clinically important subpopulations (obese, n = 346; elderly, n = 99; renal impairment, n = 40; hepatic disease/impairment, n = 294) appeared comparable to the overall population.

CONCLUSIONS: Tedizolid, given orally or intravenously at 200 mg, has a favorable safety profile. Clinical trial and postmarketing experience with treatment ≥7 days is limited.