Reports and Findings (Published Research)

ORIGIN-1 trial: study protocol for an organoid-guided N-of-1 trial evaluating CFTR modulator response in cystic fibrosis with rare non-F508del mutations

Cystic fibrosis (CF) is a genetic condition caused by mutation of the cystic fibrosis transmembrane regulator (CFTR) gene. Recently licensed modulator therapies target the defective CFTR protein and have transformed the formerly life-limiting trajectory of people with CF (pwCF).

Safety and efficacy of elexacaftor/tezacaftor/ivacaftor in children ≥2 years with cystic fibrosis: 96-week interim results from a phase 3 open-label extension study

Elexacaftor/tezacaftor/ivacaftor(ELX/TEZ/IVA) was safe and efficacious in children with CF 2-5y with at least one F508del allele in 24-week phase 3 Trial 445-111. Children who completed 445-111 were eligible for the long-term safety and efficacy extension trial.

An infant nasal microbial gene atlas uncovers intervention-driven microbiome shifts and salt-resistant pathogen expansion

Functional studies of how early-life interventions shape the airway microbiome remain scarce. Here, we performed metagenomic sequencing of 704 longitudinal nasal swabs from infants with and without cystic fibrosis (CF) to construct and characterize a non-redundant gene atlas of the infant nasal microbiome. We aimed to determine how the nasal microbiome is perturbed by early therapies, as CF is commonly treated with inhaled hypertonic saline to improve mucociliary clearance.

Characteristics, treatment and lung function outcomes of pulmonary exacerbations in cystic fibrosis: insights from the BEAT-CF cohort

Pulmonary exacerbations pose a significant clinical burden on people with cystic fibrosis (pwCF). Whether management of exacerbations should change in the context of modulator therapy is unclear. We describe the characteristics, treatment and lung function outcomes of pulmonary exacerbations requiring intravenous antibiotic therapy (PERITs) in a contemporary Australian cohort of pwCF, in an era of rapidly broadening access to modulator therapy.

Young children with cystic fibrosis and tracheobronchomalacia have longer and more frequent hospital admissions

Tracheobronchomalacia (TBM) is characterised by abnormal collapsibility of the trachea and bronchi, often seen in children with cystic fibrosis (CF). This study aims to determine the impact of TBM on hospital admissions in young children with CF.

The feasibility of using electrical impedance tomography to guide positive pressure airway clearance in children with cystic fibrosis and tracheobronchomalacia

Positive expiratory pressure devices are frequently used for airway clearance in children with cystic fibrosis and tracheobronchomalacia. This study aimed to establish if electrical impedance tomography is a feasible measure to titrate pressures in non-sedated children.

MetaNeb Versus Usual Care During Exacerbations of Cystic Fibrosis: An RCT

During exacerbations, when symptom and treatment burden are increased, individuals with cystic fibrosis (CF) are likely to prefer airway clearance techniques (ACTs) that require minimal effort. Therefore, in adults with CF who were hospitalised with an exacerbation, we sought to compare the effect of the MetaNeb with usual ACTs on respiratory function and expectorated sputum.

BEAT-CF (Bayesian Evidence Adaptive Treatment for people with Cystic Fibrosis): description of a prospective cohort for nested studies in cystic fibrosis

Despite recent improvements in treatment modalities for cystic fibrosis (CF), there is currently limited evidence and a lack of consensus regarding optimal treatment strategies for the different aspects of CF, including pulmonary exacerbations (PEx). We aimed to establish a prospective cohort of people with CF (pwCF) to evaluate alternative approaches to managing CF in the era of modulator therapies.

Signal-correction errors in the EasyOne Pro LAB multiple-breath washout device significantly impact outcomes in children and adults

Multiple-breath washout (MBW) is an established technique to assess functional residual capacity (FRC) and ventilation inhomogeneity in the lung. Indirect calculation of nitrogen concentration requires accurate measurement of gas concentrations.

Virome assembly reveals draft genomes of native Pseudomonas phages isolated from a paediatric bronchoalveolar lavage sample

We present lung virome data recovered through shotgun metagenomics in bronchoalveolar lavage fluid from an infant with cystic fibrosis, who tested positive for Stenotrophomonas maltophilia infection. Using a bioinformatic pipeline for virus characterization in shotgun metagenomic data, we identified five viral contigs representing Pseudomonas phages classified as Caudoviricetes.