Introduction Interstitial lung disease is one of the most severe pulmonary complications related to connective tissue diseases, resulting in substantial morbidity and mortality. Telepneumology has the potential to improve the long-term management of patients with CTD-ILD. We propose a randomized controlled trial to evaluate the efficacy of home-based telemonitoring of patients with CTD-ILD, in whom treatment was initiated. Materials and methods We will conduct a randomized controlled trial comparing the standard of care with a telemonitoring program. Telemonitoring will start 10 to 14 days before treatment and will be carried out for three months of therapy. After initial training, patients from the intervention group will perform daily spirometry (FVC), transdermal pulse oximetry, pulse and blood pressure measurements, activity measurement (accelerometry), and assessment of the severity of cough and dyspnea. The results will be reported using a telemetric system designed by Mediguard® for this study. The primary outcome measure will be the health-related quality of life change using EQ-5D-5L questionnaire and St. George’s Respiratory Questionnaire, as measured at stationary visits in both study groups. Secondary outcomes will include assessment of lung function, costs of health service utilization, satisfaction from being telemonitored, dyspnea by mMRC, fatigue by FAS, patients’ adherence to recommended medications using the ASCD, anxiety and depression symptoms as measured by HADS, PHQ-9, and side effects of treatment. Discussion This is the first clinical trial protocol to evaluate home-based telemonitoring to optimize connective tissue disease-associated interstitial lung management. The study aims to provide data on the impact of telemonitoring on quality of life, evaluation of health status of patients with CTD-ILD using telemonitoring versus standard care. Additionally, we will evaluate the cost-effectiveness of telemonitoring solutions in patients with CTD-ILD. Trial registration ClinicalTrials.gov Identifier: NCT04428957; Registered June 11, 2020; https://clinicaltrials.gov/ct2/show/NCT04428957.

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