NAC Inhalation in the Treatment Of Symptomatic acuTe rhinosinUSitis — NOTUS  

Chronic Rhinosinusitis Clinical Trial

Official title: A Cluster-randomized, Open, Prospective, Observational Study to Evaluate the Treatment Effectiveness and Safety of N-acetylcysteine(NAC) Inhalation Compared With Standard Treatment in Patients With Symptomatic Acute Rhinosinusitis

Status Completed

Clinical Trial Summary

N-acetylcysteine (NAC), known to have mucolytic and antioxidant effects, is widely used to treat respiratory diseases and manage post-surgery pulmonary complications. It is also administered as a treatment for acetaminophen addiction and a preventive measure for contrast-induced nephropathy (CIN). While NAC inhalation is commonly used for mucolytic purpose for various respiratory disease because it has relatively less side effects compared to oral or injection administrations, it is more used as a part of allopathy than as a major therapy. As a result, there is neither enough relevant clinical data nor specific reference in treatment guidelines. Therefore, this study aims to evaluate the overall treatment effectiveness and safety of NAC inhalation compared with standard treatment, and to perform follow-up observations on administration cases, patient characteristics, and adverse events of NAC inhalation used in real clinical settings.

Clinical Trial Description

Study Methodology :

12 medical institutions in Korea that meet the inclusion criteria are cluster-randomized (test sites : control sites =1:1). Information about randomization is disclosed to both investigators and subjects. This means both study center investigators and subjects will be aware of the purpose of this study as well as the result of randomization (whether the subjects will receive NAC inhalation or not) from the beginning of the study.

Investigators shall obtain voluntary consent for participation in this research from patients who visit their medical institutions with symptomatic acute rhinosinusitis within the study duration. Patients who provided a written consent for the use of their personal information and who satisfy inclusion/exclusion criteria will be given a study enrollment number and available data on these patients will be collected among the predefined study relevant data in the case reports until Day 14 (±3 days) from the starting day of treatment.

Statistical Analysis Methods (Analysis of primary endpoints) :

Obtain descriptive statistics (average, standard deviation, median, minimum, quartile, and maximum) for the change in the total score of the investigator's symptomatic severity assessment by treatment group on Day 14 compared with each time point and baseline (Day 0). Paired t-test shall be used to check intra-group change difference and Two sample t-test shall be used to check inter-group change difference. ;

Related Conditions & MeSH terms

• Acute Rhinosinusitis
• Chronic Rhinosinusitis
• Recurrent Acute Rhinosinusitis
• Sinusitis

• NCT number: NCT04131686
• Study type: Observational
• Source: Boryung Pharmaceutical Co., Ltd
• Status: Completed
• Start date: September 30, 2019
• Completion date: September 17, 2021