16 Nov FDA AdComm – Inhaled ciprofloxacin for non-CF bronchiectasis

Dear All: 

Federal Register notice has been released announcing a 16 Nov 2017 FDA Antimicrobial Drugs Advisory Committee meeting to review Bayer’s inhaled ciprofloxacin for reduction of exacerbations in adults with non-cystic fibrosis bronchiectasis with respiratory bacterial pathogens (NCFB). Post-meeting addendum: Materials from the meeting can be found here. You might also want to look at materials from the 11 Jan 2018 AdComm on Aradigm’s inhaled ciprofloxacin (link).

The data are almost certainly from the RESPIRE 1 and 2 trials: “The RESPIRE programme consists of two international phase III prospective, parallel-group, randomized, double-blinded, multicentre, placebo-controlled trials of the same design. Adult patients with idiopathic or post-infectious NCFB, a history of ≥ 2 exacerbations in the previous 12 months, and positive sputum culture for one of seven pre-specified pathogens, undergo stratified randomization 2:1 to receive twice-daily Ciprofloxacin DPI 32.5 mg or placebo using a pocket-sized inhaler in one of two regimens: 28 days on/off treatment or 14 days on/off treatment. The treatment period is 48 weeks plus an 8-week follow-up after the last dose. The primary efficacy endpoints are time to first exacerbation after treatment initiation and frequency of exacerbations using a stringent definition of exacerbation. Secondary endpoints, including frequency of events using different exacerbation definitions, microbiology, quality of life and lung function will also be evaluated.”

In short, an identical pair of placebo-controlled studies using endpoints focused on the clinical outcome of time to exacerbation. This will be an important benchmark datum for those interested in developing inhaled drugs for pulmonary infections. Mark your calendars!

All best wishes, –jr

John H. Rex, MD | Chief Medical Officer, F2G Ltd. | Chief Strategy Officer, CARB-X | Expert-in-Residence, Wellcome Trust. Follow me on Twitter: @JohnRex_NewAbx. See past newsletters and subscribe for the future: http://amr.solutions/blog/

Upcoming meetings of interest to the AMR community:

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