Tedizolid


Tedizolid, is an oxazolidinone-class antibiotic. Tedizolid phosphate is a phosphate ester prodrug of the active compound tedizolid. It was developed by Cubist Pharmaceuticals, following acquisition of Trius Therapeutics, and is marketed for the treatment of acute bacterial skin and skin structure infections.
The most common side effects include nausea, headache, diarrhoea and vomiting. These side effects were generally of mild or moderate severity.
Tedizolid was approved for medical use in the United States in June 2014, and for medical use in the European Union in March 2015.

Medical uses

Tedizolid was approved by the U.S Food and Drug Administration on June 20, 2014, with the indication for the treatment of acute bacterial Skin and skin structure infections caused by certain susceptible bacteria, including Staphylococcus aureus, various Streptococcus species, and Enterococcus faecalis. Tedizolid is a second-generation oxazolidinone derivative that is 4-to-16-fold more potent against staphylococci and enterococci compared to linezolid. The recommended dosage for treatment is 200 mg once daily for a total duration of six days, either orally or through an intravenous injection.
In the European Union tedizolid is indicated for the treatment of acute bacterial skin and skin structure infections in adults.

Mechanism of action

Tedizolid phosphate is a prodrug activated by plasma or intestinal phosphatases to tedizolid following administration of the drug either orally or intravenously. Once activated, tedizolid exerts its bacteriostatic microbial activity through inhibition of protein synthesis by binding to the 50S ribosomal subunit of the bacteria.

Clinical trials

Tedizolid proved its noninferiority to linezolid in two phase-III trials, known as the ESTABLISH trials.
Tedizolid is the second treatment approved by the FDA under the new federal law Generating Antibiotic Incentives Now. New antibiotics manufactured under this new act will be designed as a Qualified Infectious Disease Product, allowing an expedited review by the FDA and an additional five years of market exclusivity.

Adverse effects

The most common adverse effects found in the clinical trials were nausea, headache, diarrhea, vomiting, and dizziness. Tedizolid has also been found to have hematologic effects, as shown in Phase-I studies in which subjects exposed to doses longer than 6 days showed a possible dose and duration effect on hematologic parameters. Its safety in patients with decreased levels of white blood cells has not been established. Patients on tedizolid are also at low risk of peripheral and optic neuropathy, similar to other members of the oxazolidinone class.