FDA approves treatment for complicated urinary tract and abdominal infections

The U.S. Food and Drug Administration has approved Recarbrio (imipenem, cilastatin and relebactam), an antibacterial drug product to treat adults with complicated urinary tract infections (cUTI) and complicated intra-abdominal infections (cIAI).

The Food and drug administration (FDA) has granted the approval of Recarbrio for the treatment to Merck & Co., Inc.

Recarbrio is a three-drug combination injection containing imipenem-cilastatin, a previously FDA-approved antibiotic, and relebactam, a new beta-lactamase inhibitor.

"The FDA remains focused on facilitating the development of safe and effective new antibacterial drugs to give patients more options to fight serious infections," said Ed Cox, M.D., M.P.H., director for the Office of Antimicrobial Products in FDA's Center for Drug Evaluation and Research. "It is important that the use of Recarbrio be reserved for situations when there are limited or no alternative antibacterial drugs for treating a patient's infection."

The determination of efficacy of Recarbrio was supported in part by the findings of the efficacy and safety of imipenem-cilastatin for the treatment of cUTI and cIAI. The contribution of relebactam to Recarbrio was assessed based on data from in vitro studies and animal models of infection. The safety of Recarbrio, administered via injection, was studied in two trials, one each for cUTI and cIAI. The cUTI trial included 298 adult patients with 99 treated with the proposed dose of Recarbrio. The cIAI trial included 347 patients with 117 treated with the proposed dose of Recarbrio.

The most common adverse reactions observed in patients treated with Recarbrio included nausea, diarrhea, headache, fever and increased liver enzymes.

Recarbrio should not be used in patients taking ganciclovir unless the benefits outweigh the risks as generalized seizures have been reported. Patients should also avoid using Recarbrio when taking valproic acid or divalproex sodium, drugs used to manage seizures, as a reduction in valproic acid level may lead to seizures.

Recarbrio received Qualified Infectious Disease Product (QIDP) designation of Food and drug administration. The QIDP designation is given to antibacterial and antifungal drug products intended to treat serious or life-threatening infections under the Generating Antibiotic Incentives Now (GAIN) title of the Food and Drug Administration Safety and Innovation Act. As part of QIDP designation, Recarbrio was granted Priority Review under which the FDA's goal is to take action on an application within an expedited time frame.