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Pirfenidone and nintedanib are antifibrotic medications approved for idiopathic pulmonary fibrosis treatment by regulatory agencies and available for clinical use worldwide. These drugs have been shown to reduce the rate of decline in forced vital capacity and the risk of acute exacerbation among patients with idiopathic pulmonary fibrosis. Recent data suggest that different interstitial lung diseases with a progressive pulmonary fibrosis phenotype can share similar pathogenetic and biological pathways and could be amenable to antifibrotic therapies. Indeed, historical management strategies in interstitial lung disease have failed to identify potential treatments once progression has occurred despite available drugs. In this systematic review, we summarized data on the efficacy of pirfenidone and nintedanib in interstitial lung diseases other than idiopathic pulmonary fibrosis as well as ongoing and upcoming clinical trials. We identify two well-designed trials regarding nintedanib demonstrating the efficacy of this drug in slowing disease progression in patients with interstitial lung diseases other than idiopathic pulmonary fibrosis. On the other hand, results on the use of pirfenidone in interstitial lung diseases other than idiopathic pulmonary fibrosis should be interpreted with more caution on the basis of trial limitations. Several randomized control trials are underway to improve the quality of evidence in the interstitial lung disease field.

The role of neutrophil elastase (NE) is poorly understood in bronchiectasis because of the lack of preclinical data and so most of the assumptions made about NE inhibitor potential benefit is based on data from CF . In this context, NE seems to be a predictor of long-term clinical outcomes and a possible target of treatment. In order to better evaluate the role of NE in bronchiectasis, a systematic search of scientific evidence was performed. Two investigators independently performed the search on PubMed and included studies published up to May 15, 2017 according to predefined criteria. A final pool of 31 studies was included in the systematic review, with a total of 2679 patients. For each paper data of interest were extracted and reported in table. In this review sputum NE has proved useful as an inflammatory marker both in stable state bronchiectasis and during exacerbations and local or systemic antibiotic treatment. NE has also been associated with risk of exacerbation, time to next exacerbation and all-cause mortality. This study reviews also the role of NE as a specific target of treatment in bronchiectasis. Inhibition of NE is at a very early stage and future interventional studies should evaluate safety and efficacy for new molecules and formulations.

Background The understanding of the epidemiology of bronchiectasis is still affected by major limitations with very few data published worldwide. The aim of this study was to estimate the epidemiological burden of bronchiectasis in Italy in the adult population followed-up by primary care physicians. Methods This study analyzed data coming from a large primary care database with 1,054,376 subjects in the period of time 2002–2015. Patients with bronchiectasis were selected by the use of International Statistical Classification of Diseases, 9th revision, Clinical Modification codes (ICD-9-CM). Results Patients with bronchiectasis were more likely to have a history of tuberculosis (0.47% vs. 0.06%, p  < 0.0001), had higher rates of asthma (16.6% vs. 6.2%, p  < 0.0001), COPD (23.3% vs. 6.4%, p < 0.0001) and rheumatoid arthritis (1.9% vs. 0.8%, p < 0.0001). The prevalence and incidence of bronchiectasis in primary care in Italy in 2015 were 163 per 100,000 population and 16.3 per 100,000 person-years, respectively. Prevalence and incidence increased with age and overall rates were highest in men over 75 years old. Prevalence and incidence computed after the exclusion of patients with a diagnosis of either asthma or COPD is 130 per 100,000 and 11.1 cases per 100,000 person-years, respectively. Conclusions Bronchiectasis is not a rare condition in Italian adult population. Further studies are needed to confirm our results and provide a better insight on etiology of bronchiectasis in Italy. Trial registration not applicable.

Elexacaftor/tezacaftor/ivacaftor (ETI) is a cystic fibrosis (CF) transmembrane conductance regulator modulator, which has shown efficacy in people with CF (pwCF) carrying the F508del (F) variant, both in homozygosity and heterozygosity with a minimal function (MF) variant. Limited data exist on the effects of ETI in pwCF with advanced lung disease. Our aim was to investigate ETI safety and effectiveness in this patient group in a real-life setting over 2 years. A multicenter observational cohort study was designed to gather real-world information on the effect of ETI treatment on CF patients (aged >12 years, genotype: F/MF mutation) with advanced lung disease as defined by a FEV1 < 40% predicted. Retrospective demographic and clinical data were recorded for the two years preceding and the two years following ETI initiation. The following outcomes were investigated: treatment-associated adverse events (AEs), drug interruptions (temporary or permanent), variations in percent predicted FEV1 (ppFEV1), sweat chloride concentration (SwCl), antibiotic use, body mass index (BMI), and quality of life. A total of 124 (51.6% males) pwCF were treated with ETI over 2 years. The median (IQR) age and ppFEV1 were 34 (26, 43) years and 34 (29, 41) percentage points, respectively. ETI was discontinued in two pwCF due to lung transplantation, and temporarily interrupted in two because of skin rash, and in three following elevated levels of aminotransferase. Most AEs were mild and short-lasting. In 12.1% pwCF, we registered an increase greater than twice the upper limit of the normal range in alanine aminotransferase, and in 16% we registered an increase in conjugated bilirubin with no increase in aminotransferase. Both increases were recurrent in about half of the subjects. The mean differences (95% CI) for ppFEV1 and SwCl, assessed as mean values in the pre-ETI and ETI treatment periods, were +11.8 (11.1 to 12.6) and −43.7 (−47.6 to −39.9) mmol/L. A modest increase in ppFEV1 persisted during the second year of treatment. Number of oral and IV antibiotic cycles/year, as well as hospitalizations/year, decreased significantly from 3.6 to 1.2, from 2.4 to 0.6, and from 2.1 to 0.5 during ETI treatment. A total of 8 of 16 (50%) pwCF were taken off the waiting list for lung transplantation, and significant reductions in the percentages of pwCF using long-term oxygen therapy and non-invasive ventilation were observed. A poor concordance between ppFEV1 and SwCl was found. In only 3/82 (3.7%), subjects with chronic airway infection by Pseudomonas aeruginosa cultures were always negative during ETI treatment. In CF patients with advanced lung disease on ETI treatment, we observed an improvement in a number of clinically significant outcomes over a 2-year study period. However, several additional observations, such as liver dysfunction, variable degrees of lung function improvement, and limited impact on chronic airway infection, underscore the fact that the benefit–risk profile of ETI treatment in cystic fibrosis patients with advanced lung disease has not been fully elucidated and warrants prolonged-term monitoring.

Background The introduction of the novel therapy, Elexacaftor/Tezacaftor/Ivacaftor (ETI) has been effective in improving weight gain in both clinical trials and real-world studies. However, the magnitude of this effect appears to be heterogeneous across patient subgroups. This study aims to identify potential determinants of heterogeneity in weight gain following 6-month ETI therapy. Methods We conducted a multicenter, prospective cohort study enrolling 92 adults with CF at two major CF centers in Italy with follow-up visit at one month and six months from ETI initiation. The treatment’s effect on weight changes was evaluated using mixed effect regression models that included subject-specific random intercepts and fixed effects for potential predictors of treatment response, time and a predictor-by-time interaction term. Results The mean weight gain at six months from the start of treatment was 4.6 kg (95% CI: 2.3–6.9) for the 10 patients with underweight, 3.2 kg (95% CI: 2.3-4.0) for the 72 patients with normal weight, and 0.7 kg (95% CI: -1.6-3.0) for the 10 patients with overweight. After six months of ETI treatment, 8 (80%) of the patients with underweight transitioned to the normal weight category, while 11 (15.3%) of the normal-weight patients became overweight. The major determinants of heterogeneity in weight gain were the baseline BMI and the presence of at least one CFTR residual function mutation, explaining 13% and 8% of the variability, respectively. Conclusions Our results indicate that ETI is highly effective in improving weight gain in underweight subjects with CF. However, our data also suggests the need for close monitoring of excess weight gain to prevent potential cardiometabolic complications. Highlights We reported heterogeneity in weight gain after 6 months of treatment with ETI. Baseline BMI and CFTR genotype predict heterogeneity in treatment response. People with underweight received the greatest benefit from ETI treatment. An amount of 15% of normal-weight subjects became overweight.

Immune checkpoint inhibitors (ICIs) are drugs growingly employed in cancer immunotherapy which have significantly improved the prognosis of several tumours. ICIs act by restoring the “exhausted” immune system and increasing the number of T cells active against pathogens losing tolerogenic signalling, which has been linked to an increased risk of infectious events. We present the case of a 67-year-old man with locally advanced lung adenocarcinoma treated with the anti-PD-L1 durvalumab. Three months after immunotherapy started, an apparent radiological progression was found with elements suggesting a parenchymal superinfection associated with weight loss, asthenia, and sputum emission. A bronchoalveolar lavage resulted positive for Mycobacterium chimaera , and treatment with amikacin iv (for eight weeks) and daily azithromycin, ethambutol, and rifampicin was started. Thirteen months after treatment started, the patient is alive with a stable lung condition. The case highlights the risk of non-tuberculous mycobacteria lung disease (NTM-LD) in patients receiving ICIs treatment. We hypothesise that durvalumab induced an exaggerated immune response toward the mycobacteria, leading to immunopathology and overt clinical manifestations. Clinicians should be aware of this possibility in patients receiving ICIs developing new signs/symptoms related to the respiratory tract, especially in countries with a high prevalence of NTM-LD.

This retrospective population-based study investigated the impact of elexacaftor/tezacaftor/ivacaftor (ETI) therapy on inhaled medication adherence in people with cystic fibrosis (pwCF). Prescription refill rate (PRR) for several inhaled medications were compared before and after ETI introduction in three major Italian CF centers. We found a significant decrease in PRR for most inhaled antibiotics and dornase-alpha after ETI implementation.This suggests that patients may be reducing their adherence to inhaled medications, potentially due to improved respiratory symptoms and quality of life. The study highlights the challenges of maintaining adherence to chronic inhaled medications in pwCF, even after the introduction of breakthrough therapies like ETI. Monitoring adherence remains crucial for optimizing patient outcomes, and the PRR emerges as a valuable tool for tracking adherence in real-world settings.

This study investigates the molecular and functional consequences of rare CFTR variants, particularly focusing on the complex allele [186-13C > G; 1898 + 3A > G] and the CFTRdele2ins182 rearrangement. Using patient-derived nasal epithelial cells, the research characterized the transcripts produced by these variants, revealing that CFTRdele2ins182, previously considered a null allele, generates alternative mRNA isoforms, one of which potentially encodes a partially functional CFTR protein. Functional assays in both heterologous and patient-derived cell models explored the impact of CFTR modulators on these variant proteins. While some rescue of CFTR activity was observed with specific modulator combinations in certain variants, the study highlights the complexity of genotype-phenotype correlations in CF and emphasizes the importance of personalized functional characterization of rare CFTR variants to guide therapeutic strategies. The findings suggest that even variants thought to be null alleles may produce proteins with residual function, opening avenues for developing targeted therapies for a broader range of CF patients.

Interstitial lung diseases (ILDs) are complex and heterogeneous diseases. The use of traditional diagnostic classification in ILD can lead to suboptimal management, which is worsened by not considering the molecular pathways, biological complexity, and disease phenotypes. The identification of specific “treatable traits” in ILDs, which are clinically relevant and modifiable disease characteristics, may improve patient’s outcomes. Treatable traits in ILDs may be classified into four different domains (pulmonary, aetiological, comorbidities, and lifestyle), which will facilitate identification of related assessment tools, treatment options, and expected benefits. A multidisciplinary care team model is a potential way to implement a “treatable traits” strategy into clinical practice with the aim of improving patients’ outcomes. Multidisciplinary models of care, international registries, and the use of artificial intelligence may facilitate the implementation of the “treatable traits” approach into clinical practice. Prospective studies are needed to test potential therapies for a variety of treatable traits to further advance care of patients with ILD.

Background: To limit the progression of disease, people with cystic fibrosis (pwCF) perform daily respiratory physiotherapy, which is perceived as the most burdensome routine in managing their condition. The elexacaftor–tezacaftor–ivacaftor (ETI) combination has changed respiratory management. Objective: To investigate how the perceived treatment burden changed in 1 year of treatment with ETI. Design: Prospective observational study. Methods: Ad hoc questionnaires for the pwCF and for the caregivers of pwCF < 18 years were administered before the initiation of ETI therapy and then at 6–12 months. The Cystic Fibrosis Questionnaire-Revised (CFQ-R) and the Sinonasal Outcome Test (SNOT-22) were administered to explore disease-related symptoms and social limitations. The International Physical Activity Questionnaire was used to determine levels of physical activity. Mixed-effect models were fitted to explore whether the time engaged in respiratory physiotherapy changed during 1 year. Results: The study included 47/184 pwCF aged 21.4 (5.7) years, who completed 1 year of ETI therapy. At 6 months, time on aerosol therapy was decreased by 2.5 (95% CI −32.9 to 27.8) min/day, time on airway clearance therapies (ACTs) was decreased by 8.8 (95% CI −25.9 to 8.3) min/day, and time for cleaning and disinfecting respiratory equipment was decreased by 10.6 (95% CI −26.5 to 5.3) min/day. At 1 year, gains in time saved were nearly 15 min/day on average. At 1 year, 5/47 (10.6%) pwCF reported that they had discontinued positive expiratory pressure mask. Conclusion: PwCF on ETI may note less time engaged in their daily respiratory physiotherapy routine. Nonetheless, aerosol therapy, ACTs and maintaining respiratory equipment were still perceived as time-consuming daily activities. Plain language summary Understanding the challenges of respiratory physiotherapy in individuals with cystic fibrosis using triple therapy: a one-year study. In order to slow down the progression of their disease, people with cystic fibrosis typically do daily respiratory physiotherapy, which they find to be the most challenging part of managing their condition. The elexacaftor-tezacaftor-ivacaftor combination has changed how they manage their respiratory health. We wanted to see how the perceived difficulty of the treatment changed over one year of using elexacaftor-tezacaftor-ivacaftor. We gave questionnaires to people with cystic fibrosis and to their caregivers before they started the triple therapy and again at 6-12 months. We also used two international questionnaires to learn about symptoms and social limitations related to the disease. The International Physical Activity Questionnaire helped us understand their physical activity levels. We used statistical models to see if the time spent on respiratory physiotherapy changed over the year. Our study involved 47 individuals with cystic fibrosis, with an average age of 21 years, who completed one year of elexacaftor-tezacaftor-ivacaftor therapy. After 6 months, time spent on aerosol therapy decreased by 2.5 minutes per day, time on airway clearance therapies decreased by 8.8 minutes per day, and time for cleaning respiratory equipment decreased by 10.6 minutes per day. By the end of the year, they were saving almost 15 minutes per day on average. At one year, 5 out of 47 said they had stopped using the positive expiratory pressure mask. People with cystic fibrosis using elexacaftor-tezacaftor-ivacaftor may find that they spend less time on their daily respiratory physiotherapy routine. However, activities like aerosol therapy, airway clearance therapies, and maintaining respiratory equipment were still seen as time-consuming.