PMID- 32807645 OWN - NLM STAT- MEDLINE DCOM- 20220121 LR - 20220121 IS - 1873-5010 (Electronic) IS - 1569-1993 (Linking) VI - 20 IP - 2 DP - 2021 Mar TI - Long-term safety study of colistimethate sodium (Colobreathe(R)): Findings from the UK Cystic Fibrosis Registry. PG - 324-329 LID - S1569-1993(20)30816-X [pii] LID - 10.1016/j.jcf.2020.08.001 [doi] AB - BACKGROUND: As part of the risk management plan in Europe, a long-term observational study was conducted to monitor the safety of colistimethate sodium dry powder for inhalation (CMS-DPI) compared to other inhaled antibiotics. METHODS: A cohort of CMS-DPI patients and a matched cohort were identified from the UK Cystic Fibrosis Registry (UKCFR) from 2014-2018. The primary outcome was a composite endpoint, defined as adverse events (AEs) or new cystic fibrosis (CF) complications. Other outcomes included pulmonary exacerbations and treatment discontinuations. RESULTS: Of 1466 and 3503 patients in the CMS-DPI and comparator cohorts, respectively, 82.7% and 79.4% had AEs. Among the most common new CF complications were osteopenia, CF-related diabetes, and increased liver enzymes. The adjusted event rate ratio (ERR) for the primary outcome was 1.25 (95% confidence interval [CI]: 1.18-1.33, p<0.001). After excluding new CF complications, there was no difference between cohorts (ERR=1.04, 95% CI: 0.79-1.38, p=0.785). Pulmonary exacerbations were common in CMS-DPI and comparator cohorts (78.0% and 79.9% of patients, respectively), with adjusted ERR of 1.02 (95% CI: 0.95-1.10, p=0.523). Rates of discontinuation were similar in the CMS-DPI and Tobramycin inhalation powder comparator cohorts (37.8% and 39.8% of patients, respectively). CONCLUSIONS: There was no difference in the rate of adverse events between CMS-DPI and comparator cohorts. The safety profile of CMS-DPI is similar to those of other inhaled antibiotics, supporting its long-term safety in people with CF. The UKCFR has developed a successful model for partnership with industry to conduct long-term studies aimed at assessing drug safety. CI - Copyright (c) 2020. Published by Elsevier B.V. FAU - Kaplan, Sigal AU - Kaplan S AD - Teva Pharmaceutical Industries Ltd., Netanya, Israel. Electronic address: Sigalit.Kaplan@teva.co.il. FAU - Lee, Andrew AU - Lee A AD - UK Cystic Fibrosis Trust (UKCFT), London, United Kingdom. FAU - Caine, Noreen AU - Caine N AD - UK Cystic Fibrosis Trust (UKCFT), London, United Kingdom. FAU - Charman, Susan C AU - Charman SC AD - UK Cystic Fibrosis Trust (UKCFT), London, United Kingdom. FAU - Bilton, Diana AU - Bilton D AD - National Heart and Lung Institute, Imperial College, London & Royal Brompton Hospital, London, United Kingdom. LA - eng PT - Journal Article PT - Observational Study PT - Research Support, Non-U.S. Gov't DEP - 20200814 PL - Netherlands TA - J Cyst Fibros JT - Journal of cystic fibrosis : official journal of the European Cystic Fibrosis Society JID - 101128966 RN - 0 (Anti-Bacterial Agents) RN - DL2R53P963 (colistinmethanesulfonic acid) RN - Z67X93HJG1 (Colistin) SB - IM MH - Administration, Inhalation MH - Adolescent MH - Adult MH - Aged MH - Anti-Bacterial Agents/administration & dosage/*therapeutic use MH - Child MH - Colistin/administration & dosage/*analogs & derivatives/therapeutic use MH - Cystic Fibrosis/*complications MH - Female MH - Humans MH - Male MH - Middle Aged MH - Pseudomonas Infections/*drug therapy MH - Registries MH - Respiratory Tract Infections/*drug therapy/microbiology MH - Symptom Flare Up MH - United Kingdom OTO - NOTNLM OT - Colistimethate sodium dry powder for inhalation OT - Colobreathe OT - Long-term safety OT - UK Cystic Fibrosis Registry COIS- Declaration of Competing Interest Sigal Kaplan is an employee of Teva Pharmaceutical Industries Ltd. Diana Bilton has no conflicts of interest. Susan C Charman, Andrew Lee, and Noreen Caine are employees of the UKCFT, which received financial support from Teva Pharmaceuticals B.V. to conduct this study. EDAT- 2020/08/19 06:00 MHDA- 2022/01/22 06:00 CRDT- 2020/08/19 06:00 PHST- 2020/05/16 00:00 [received] PHST- 2020/07/17 00:00 [revised] PHST- 2020/08/04 00:00 [accepted] PHST- 2020/08/19 06:00 [pubmed] PHST- 2022/01/22 06:00 [medline] PHST- 2020/08/19 06:00 [entrez] AID - S1569-1993(20)30816-X [pii] AID - 10.1016/j.jcf.2020.08.001 [doi] PST - ppublish SO - J Cyst Fibros. 2021 Mar;20(2):324-329. doi: 10.1016/j.jcf.2020.08.001. Epub 2020 Aug 14.