Biomedicine & Pharmacotherapy (Dec 2023)

Novel intranasal phage-CaEDTA-ceftazidime/avibactam triple combination therapy demonstrates remarkable efficacy in treating Pseudomonas aeruginosa lung infection

  • Aye Mya Sithu Shein,
  • Dhammika Leshan Wannigama,
  • Cameron Hurst,
  • Peter N. Monk,
  • Mohan Amarasiri,
  • Vishnu Nayak Badavath,
  • Phatthranit Phattharapornjaroen,
  • William Graham Fox Ditcham,
  • Puey Ounjai,
  • Thammakorn Saethang,
  • Naphat Chantaravisoot,
  • Wanwara Thuptimdang,
  • Sirirat Luk-in,
  • Sumanee Nilgate,
  • Ubolrat Rirerm,
  • Chanikan Tanasatitchai,
  • Naris Kueakulpattana,
  • Matchima Laowansiri,
  • Tingting Liao,
  • Rosalyn Kupwiwat,
  • Rojrit Rojanathanes,
  • Natharin Ngamwongsatit,
  • Arsa Thammahong,
  • Hitoshi Ishikawa,
  • Daniel Pletzer,
  • Asada Leelahavanichkul,
  • Naveen Kumar Devanga Ragupathi,
  • Pattama Wapeesittipan,
  • S.M. Ali Hosseini Rad,
  • Talerngsak Kanjanabuch,
  • Robin James Storer,
  • Kazuhiko Miyanaga,
  • Longzhu Cui,
  • Hiroshi Hamamoto,
  • Paul G. Higgins,
  • Anthony Kicic,
  • Tanittha Chatsuwan,
  • Parichart Hongsing,
  • Shuichi Abe

Journal volume & issue
Vol. 168
p. 115793

Abstract

Read online

Given the rise of multidrug-resistant (MDR) Pseudomonas aeruginosa infections, alternative treatments are needed. Anti-pseudomonal phage therapy shows promise, but its clinical application is limited due to the development of resistance and a lack of biofilm penetration. Recently, adjuvants like CaEDTA have shown the ability to enhance the effectiveness of combined antimicrobial agents. Here, we tested a phage-adjuvant combination and demonstrated the effectiveness of intranasally inhaled phage (KKP10) + CaEDTA in addition to ceftazidime/avibactam (CZA) for chronic P. aeruginosa lung infections. The results emphasize that intranasal inhalation of phage along with CaEDTA can successfully re-sensitize MDR P. aeruginosa to CZA in a triple combination treatment. This promising approach shows potential as a therapy for chronic respiratory tract infections.

Keywords