Could New Antibiotics Revolutionize TB Treatment?

Synopsis
Key Takeaways
- Sutezolid and delpazolid are promising new antibiotics for TB.
- Both drugs present a better safety profile compared to linezolid.
- Clinical trials indicate improved tolerability for patients.
- The findings could revolutionize TB treatment approaches.
- Safer alternatives are urgently needed in antibiotic therapies.
New Delhi, July 11 (NationPress) Research teams from Germany have introduced two groundbreaking antibiotics that present a promising solution for countless individuals battling tuberculosis (TB), offering reduced side effects compared to existing therapies.
The newly developed drugs, sutezolid and delpazolid, exhibit impressive antimicrobial properties along with a significantly improved safety profile when contrasted with the current standard treatment, linezolid. This breakthrough could potentially replace linezolid, which has been a fundamental treatment for drug-resistant TB.
Findings from two international clinical trials, published in respected peer-reviewed journals, reveal that both sutezolid and delpazolid are both safe and effective, presenting viable alternatives to linezolid in TB therapy.
“The reduction in side effects associated with sutezolid and delpazolid is a monumental advancement — it brings us closer to TB treatments that are not only effective but also more tolerable for patients,” stated Dr. Ivan Norena, the medical team lead at the Institute of Infectious Diseases and Tropical Medicine at LMU University Hospital Munich.
Linezolid was incorporated into the World Health Organization’s (WHO) guidelines in 2022 as part of the BPaLM regimen, which also includes bedaquiline, pretomanid, and moxifloxacin, now recommended as a standard 6-month treatment for multidrug-resistant TB, significantly shortening the previous duration of 18 months.
Nevertheless, linezolid has presented challenges due to its toxicity. Extended use, far beyond its original application for bacterial skin infections, has led to serious complications such as anemia and optical neuropathy.
“Even though linezolid is effective, its toxicity poses a significant risk for many patients. There is a dire need for safer options within this antibiotic category,” remarked PD Dr. Norbert Heinrich from the university.
Both sutezolid and delpazolid belong to the oxazolidinone class like linezolid but are associated with less toxicity.
The Phase 2b clinical trials investigated these drugs in conjunction with bedaquiline, delamanid, and moxifloxacin, marking the first time such a four-drug combination has been tested.
Conducted in South Africa and Tanzania, the studies indicated that both antibiotics are not just safer but also better tolerated by patients with drug-sensitive pulmonary TB compared to linezolid.
“These results imply that both drugs could provide safer treatment avenues for TB patients, especially those requiring extended therapy durations,” concluded the researchers.