Tags: solithromycin | pneumonia | antibiotic

New Antibiotic Shows Promise as Superbug Weapon

Monday, 05 Jan 2015 08:22 AM

Cempra moved a step closer to approval of its lead antibiotic, solithromycin, after an oral version of the potential blockbuster met the main goal in a late-stage trial.

The drug is a next-generation version of a class of oft-prescribed antibiotics called macrolides, which are used to fight pathogens that cause community-acquired bacterial pneumonia (CAPB).

CAPB is the leading cause of death emanating from an infection and is characterized by shortness of breath, cough and fever, with about 5-10 million cases in the United States per year.

An oral formulation of solithromycin was as effective as Bayer AG's moxifloxacin in evoking a clinical response at 72 hours after dosing — the study's main goal.

Data showed solithromycin actually outperformed moxifloxacin by a slight margin, Cempra said on Sunday.

The drug's "impressive" safety profile, particularly its low degree of gastrointestinal toxicity, drew praise from Baird's Brian Skorney, who raised his price target on the stock by $11 to $32.

Prior-generation macrolides have triggered safety concerns in the past, including Sanofi's telithromycin which was associated with liver toxicity, and Pfizer's azithromycin, which has been linked with heart risk.

The unparalleled rate at which the oral version of solithromycin is absorbed in the blood, or its oral bioavailability, differentiates it from standard treatments, Chief Executive Prabha Fernandes told Reuters in an interview in November.
 
Jefferies analysts have previously noted a bioavailability of 80 percent for solithromycin versus 28 percent for azithromycin, a sign of superior effectiveness and lower rates of resistance.

North Carolina-based Cempra is also evaluating an intravenous formulation of solithromycin for CAPB.

The drug is also the first pediatric antibiotic-in-development in nearly three decades, according to Fernandes.

In the face of escalating antimicrobial resistance, investors have showered interest on the anti-superbug drugmaker, following Merck's announcement to acquire Cubist Pharmaceuticals, as Big Pharma revives investment in antibiotic research.

© 2017 Thomson/Reuters. All rights reserved.

 
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Cempra moved a step closer to approval of its lead antibiotic,solithromycin, after an oral version of the potential blockbuster met the main goal in a late-stage trial.The drug is a next-generation version of a class of oft-prescribed antibiotics called macrolides, which are...
solithromycin, pneumonia, antibiotic
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2015-22-05
Monday, 05 Jan 2015 08:22 AM
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