NCT04131686

Brief 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.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
294

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Sep 2019

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 30, 2019

Completed
16 days until next milestone

First Submitted

Initial submission to the registry

October 16, 2019

Completed
2 days until next milestone

First Posted

Study publicly available on registry

October 18, 2019

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 17, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 17, 2021

Completed
2.4 years until next milestone

Results Posted

Study results publicly available

February 20, 2024

Completed
Last Updated

January 8, 2025

Status Verified

January 1, 2025

Enrollment Period

2 years

First QC Date

October 16, 2019

Results QC Date

July 21, 2022

Last Update Submit

January 6, 2025

Conditions

Keywords

rhinosinusitisN-acetylcysteine

Outcome Measures

Primary Outcomes (1)

  • Change in the Total Score of the Investigator's Symptomatic Severity Assessment (Day 0, Day 14)

    Assessed symptoms: nasal congestion, nasal/postnasal discharge, facial pain/sense of facial pressure, reduction/loss of smell are rated in four categories \[0=no symptom, 1=mild, 2=moderate, 3=severe\] The total score is sum of the investigator's symptomatic assessment scores (on nasal congestion, nasal/postnasal discharge, facial pain/sense of facial pressure, and reduction/loss of smell); the maximum total score is 12 and minimum total score is 0

    Day 0(enrollment) and Day 14 after treatment for rhinosinusitis

Study Arms (2)

Control sites

Group of patients receiving standard treatment for symptomatic acute rhinosinusitis

Test sites

Group of patients receiving NAC inhalation in addition to standard treatment for symptomatic acute rhinosinusitis

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients with symptomatic acute rhinosinusitis (including recurrent acute rhinosinusitis and symptomatic acute-on-chronic rhinosinusitis). Approximately 300 subjects (Re-enrollment is not allowed.)

You may qualify if:

  • Patients are explained about the study objectives and methodologies, and shall express their consent by signing a written agreement for the use of their personal information.
  • Male and female patients who are ≥ 18 years old.
  • Symptomatic acute rhinosinusitis patients whose symptoms have been present for more than 1 week and less than 12 weeks; recurrent acute rhinosinusitis patients (acute rhinosinusitis relapsed 3 times or more within 6 months, sub-clinical symptoms between the relapses); or, symptomatic acute-on-chronic (12 weeks or more) rhinosinusitis patients. \[Patients display 2 or more symptoms that imply rhinosinusitis infection. The displayed symptoms should include at least one or more cardinal symptoms (nasal congestion or nasal/postnasal discharge).\]
  • The total score of the investigator's symptomatic severity assessment for a patient is 4 or above, and four symptomatic aspects (nasal congestion, nasal/postnasal discharge, facial pain/sense of facial pressure, reduction/loss of smell) are rated in four categories (0=no symptom, 1=mild, 2=moderate, 3=severe).
  • Patients have anterior rhinoscopy or nasal endoscopy results, and one or more of the following are observed: Redness, Edema or mucosal obstruction(mostly in the middle nasal), Mucopurulent discharge(mostly in the middle nasal), Nasal polyps

You may not qualify if:

  • Patients with rhinosinusitis of dental origin.
  • Patients with a known chronic pulmonary symptoms including bronchial asthma and chronic bronchitis.
  • Patients with nasal obstruction to the extent that drug administration is difficult.
  • Patients who have received endoscopic sinus surgery within the last 3 months.
  • Patients who have shown hypersensitivity or are likely to show hypersensitivity to N-acetylcysteine inhalation components (for the test sites)
  • Pregnant or breast-feeding patients.
  • Patients who are currently participating in other clinical trials (clinical trials for drugs or medical devices) or are planning to participate in other clinical trials during the duration of this study.
  • Patients who are not suitable for study participation upon the investigator's judgment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

The Catholic University of Korea, Yeouido ST. Mary's Hospital

Seoul, South Korea

Location

MeSH Terms

Conditions

Rhinosinusitis

Condition Hierarchy (Ancestors)

RhinitisRespiratory Tract InfectionsInfectionsSinusitisParanasal Sinus DiseasesNose DiseasesRespiratory Tract DiseasesOtorhinolaryngologic Diseases

Results Point of Contact

Title
Ji-Yeon Kim
Organization
Boryung

Study Officials

  • Myung-Sook Hong

    Boryung Pharmaceutical Co., Ltd

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
Yes

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 16, 2019

First Posted

October 18, 2019

Study Start

September 30, 2019

Primary Completion

September 17, 2021

Study Completion

September 17, 2021

Last Updated

January 8, 2025

Results First Posted

February 20, 2024

Record last verified: 2025-01

Locations