Clinical Research Directory

FMT for Lung and Associated-organ Rescue Efficacy in ARDS Patients

Acute respiratory distress syndrome (ARDS) represents a substantial global health burden. In the intensive care unit (ICU), the concurrent administration of antibiotics, opioids, proton pump inhibitors (PPIs), vasoconstrictors, and parenteral nutrition-compounded by the intrinsic severity of critical illness-induces profound gut microbiota dysbiosis. Accumulating preclinical and clinical evidence indicates that such intestinal dysregulation may trigger distal immunomodulatory and microbial shifts in the lung via the gut-lung axis, thereby contributing to pulmonary microecological imbalance and impairing recovery trajectories. Although pulmonary microecology has garnered increasing scientific attention, the causal and temporal relationship between gut dysbiosis and the establishment or exacerbation of pulmonary microbial dysbiosis in ARDS remains inadequately characterized. As a result, it is currently unclear whether gut dysbiosis serves as a primary pathogenic driver, a disease-amplifying factor, or a secondary epiphenomenon in the context of ARDS-associated lung injury. Fecal microbiota transplantation (FMT) is a targeted microbiome-modulating intervention that involves the transfer of functionally diverse, minimally processed microbial communities from comprehensively screened healthy donors to restore ecological stability and functional redundancy in the recipient gut. Robust clinical data demonstrate that FMT effectively decolonizes the gastrointestinal tract of multidrug-resistant organisms (MDROs) and reduces the incidence of secondary infections in immunocompetent, non-critically ill populations. Over the past decade, FMT has demonstrated reproducible efficacy in recurrent Clostridioides difficile infection and emerging promise in select extra-intestinal inflammatory conditions-highlighting its capacity as a mechanism-informed strategy for systemic host-microbe recalibration. Given the established role of the gut as a reservoir for enteric pathogens implicated in sepsis, hospital-acquired bloodstream infections, and ventilator-associated pneumonia (VAP), we propose a prospective, single-center, open-Label, randomized controlled trial (RCT) enrolling mechanically ventilated adults with ARDS. The primary objective is to evaluate whether adjunctive FMT-delivered via nasojejunal tube-decrease 28-day mortality.

CLArithromycin Versus AZIthromycin in the Treatment of Mycobacterium Avium Complex (MAC) Lung Infections

MAC lung infections are a growing public health problem. The ATS / IDSA 2007 guidelines for the treatment of these non-tuberculous mycobacterial infections recommend the use of a macrolide or azalide (clarithromycin or azithromycin), rifampicin or rifabutin and ethambutol. For MAC disseminated infections, several studies have compared combinations containing clarithromycin or azithromycin and found no significant difference in efficacy. No randomized controlled trials have been performed for pulmonary infections to compare clarithromycin and azithromycin in terms of efficacy. Clarithromycin is often used as a first-line treatment in France, but its tolerance is often poor, particularly in terms of risk of hepatitis, metallic taste in the mouth, nausea or vomiting, and it interacts with many drugs via cytochrome p450 . In particular, it increases the toxicity of rifabutin, in particular in terms of uveitis. Azithromycin has fewer side effects especially less digestive toxicity and drug interactions than clarithromycin. The hypothesis is therefore that the efficacy of azithromycin would be non-inferior in comparison with that of clarithromycin.

UNC Pleural Fluid Registry

Research with biospecimens such as blood, tissue, or body fluids can help researchers understand how the human body works. Researchers can make new tests to find diseases, understand how treatments work, or find new ways to treat a disease. The purpose of this study is to collect biospecimens for research from patients with known or suspected lung cancer. The information learned from the biospecimens may be used in future treatments. The purpose of this protocol is to create a pleural fluid registry for use in future studies.

Next-generation Sequencing Technology in the Clinical Application of Respiratory Specimens

Obtain the performance parameters and clinical consistency of mNGS and tNGS technologies in the pathogen diagnosis of lower respiratory tract specimens from patients with severe pulmonary infections, to provide a reference basis for the application value and true performance of these technologies in the pathogen diagnosis of patients with severe pulmonary infections.

Identification of Multiple Pulmonary Diseases Using Volatile Organic Compounds Biomarkers in Human Exhaled Breath

The goal of this observational study is to develop an advanced expiratory algorithm model utilizing exhaled breath volatile organic compound (VOC) marker molecules. This model aims to accurately diagnose mutiple pulmonary diseases. The primary objectives it strives to accomplish are: 1. To assess the diagnostic accuracy of an exhaled breath VOC-assisted diagnostic artificial intelligence (AI) model in diagnose several common pulmonary diseases. 2. To assess the diagnostic accuracy of an exhaled breath VOC-assisted diagnostic artificial intelligence (AI) model in diagnose more pulmonary diseases.

Evaluation of Virtual Reality to Reduce Anxiety, Pain and Duration of Non-emergency Vigile Bronchial Fibroscopy (AVATAR)

Bronchial fibroscopy (BF) is a routine practice examination in critical care areas. It can be useful either for the diagnosis of the causal pathology of respiratory distress or for the diagnosis of lung infection, sometimes nosocomial. In patients in spontaneous and conscious ventilation, BF are performed vigil after local anesthesia according to the recommendations of the Société de Pneumologie de langue Française. The good tolerance of the examination and its good conduct may require the use of anxiolytics, sedatives or analgesics to limit the traumatic experience of a highly anxiety-provoking examination. Virtual reality (VR) combines a set of paramedical techniques (hypnosis, music therapy, sophrology) and is now a non-drug alternative to improve the tolerance of certain invasive gestures.VR has been shown to reduce pain and anxiety during first pathways placement or digestive endoscopies. To date, there is no evidence of the benefit of VR when performing semi-urgent BF in critical care areas.

Radiolabelled Nectin-4 Targeted LMW Probe PET/CT in Patients With Lung Lesions

To evaluate the ability of \[68Ga\]N188 to detect nectin-4 overexpression in patients with lung lesions.

A Study of the Clinical Benefit of Tobramycin Inhalation Solution

This project will use literature analysis, expert research, real-world data mining and other methods to investigate the current status of the application of antimicrobial aerosolized inhalation in healthcare institutions, combine expert recommendations and real-world data analysis results to explore potential risk points in the process of antimicrobial aerosolized drug delivery, and sort out the key points of drug use management in healthcare institutions and the key points of regulatory recommendations for healthcare institutions.

Effects of Prone Position After Major Abdominal Surgery

Evaluation of postoperative prone position after major abdominal surgery. A randomized clinical trial of 100+100 patients and further add a voice/speech/singing protocol.