New Antibiotic Treats Pneumonia, Skin Infections

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WEDNESDAY, Feb. 6, 2019 (HealthDay News) — An updated version of an old antibiotic works well against pneumonia and serious skin infections — giving doctors a new option for some common ills, researchers say.

In two trials, researchers found that the drug — called omadacycline — worked as well as standard antibiotics in treating patients with “community-acquired” pneumonia or skin infections.

That means they got sick out in the real world, rather than developing the infections while in the hospital — which are typically more severe.

The U.S. Food and Drug Administration approved omadacycline in October, when the agency reviewed the trial findings. The results are now being published in the Feb. 7 issue of the New England Journal of Medicine.

The drug is a revamped, “modernized” tetracycline, explained senior researcher Dr. Evan Loh, president of Paratek Pharmaceuticals, the Boston-based maker of omadacycline.

Tetracyclines have been around for decades, and during that time bacteria have developed ways to resist the drugs. It’s one example of the wider problem of antibiotic resistance — where long-used drugs are starting to lose their effectiveness against various bacterial infections.

Omadacycline was designed to thwart the two major mechanisms that bacteria use to evade tetracyclines, Loh explained.

In both of the new trials, his team found that omadacycline was as effective as the standard antibiotics linezolid and moxifloxacin.

In a nutshell, that means the drug “worked pretty well,” said Dr. Henry Chambers, an infectious disease specialist at the University of California, San Francisco.

But Chambers, who wrote an editorial published with the studies, questioned how valuable that will ultimately be.

That’s because doctors already have “pretty good options” for the infections treated in these trials, he said.

The biggest scourge, Chambers said, are those cases of pneumonia and other serious infections that are resistant to multiple existing antibiotics.

“That’s where the real medical need is,” he said.

Each year in the United States, at least 2 million people develop antibiotic-resistant infections, and upwards of 23,000 die, according to the U.S. Centers for Disease Control and Prevention.



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