Efficacy of Macrolide and Glucocorticoid in the Treatment of Chronic Rhinosinusitis After Endoscopic Sinus Surgery

Study Overview
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Brief Summary
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Endoscopic sinus surgery (ESS) is widely considered to be the gold standard in the surgical management of chronic rhinosinusitis (CRS) that has failed maximal medical therapy. Nevertheless, the postoperation medical therapy was considered as a crucial procedure for the success of ESS. Both glucocorticoids and macrolide antibiotics have been recommended for the treatment of CRS, but their effect as postoperation medical therapies of ESS need more clinical data to clarify. The purpose of this prospective, randomized,study is to determine the effect of glucocorticoids and macrolide antibiotics for the postoperation medical therapy of ESS in different subtypes of CRS.

Detailed Description
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Chronic rhinosinusitis (CRS) is a multifactorial inflammatory disorder that causes various symptoms including nasal obstruction, rhinorrhea, olfactory dysfunction, facial pain, and headache . Endoscopic sinus surgery (ESS) is usually recommended for patients who do not response well to conservative treatments. Although surgery is effective to alleviate symptoms and improve the quality of life of CRS patients, a followed long-term postoperative medical treatment is indispensable. Current European and American guidelines recommend glucocorticoids and antibiotics as the primary pharmacotherapeutic approaches for CRS before and after ESS. However, there are a number of CRS patients not responding well to glucocorticoid treatment and conflicting results exist regarding the efficacy of long-term, low-dose macrolide treatment. One potential reason is that CRS is a heterogeneous group of disorders unified by similar clinical presentations and its phenotypes and/or endotypes may be important factors determining the efficacy of treatments.

Official Title
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Comparison of Different Efficacy of Macrolide and Glucocorticoid in the Treatment of Chronic Rhinosinusitis Patients After Endoscopic Sinus Surgery

Conditions
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Chronic Rhinosinusitis, Endoscopic Sinus Surgery

Intervention / Treatment
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* Drug: Clarithromycin
* Drug: Glucocorticoid


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Meeting the CRS diagnostic criteria including CRSsNP and CRSwNP based on the EP3OS definition Age ≥16 and ≤70 years Chinese of either sex Failure to conventional medical therapies according to EP3OS recommendation Exclusion Criteria: Pregnant or breast-feeding women Cystic fibrosis Congenital ciliary dyskinesia Sinonasal fungal disease Systemic vasculitis Granulomatous disease Tumor Immunodeficiency Allergic to clarithromycin or topical corticosteroid With an upper respiratory tract infection within 4 weeks of entering the study With serious metabolic, cardiovascular, autoimmune, neurology, blood, digestive, cerebrovascular, respiratory system disease, or any disease interfering with the evaluation of results or affecting subjects' safety such as glaucoma and tuberculosis With emotional or mental problems Have received immunotherapy within the previous 3 months Have had a history of local or systemic medications, such as glucocorticoids and macrolides within 4 weeks Have had an acute asthmatic within the 4 weeks before entering the study

Ages Eligible for Study
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Minimum Age: 16 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Glucocorticoid<br>Fluticasone propionate nasal spray | Drug: Glucocorticoid<br>* Fluticasone propionate nasal spray 200 μg/d for 3 months<br>* Other names: FLIXONASE;|
| Experimental: Clarithromycin<br>Clarithromycin tablet | Drug: Clarithromycin<br>* Clarithromycin 250 mg tablet once daily for 3 months<br>* Other names: KLACID;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Total Subjective Symptoms Visual Analog Scores (VAS) | The treatment will begin one week after ESS. Symptoms visual analog scores (VAS) were recorded just before ESS and at 1-, 3-, 6- and 12-month follow-up visit. All of the patients were assessed by using symptom questionnaire after enrollment and at follow-up visits. Subjective symptoms were scored by patients on a VAS of 0-10, with 0 being no complaint whatsoever and 10 being the worst imaginable complaint.Five major symptoms were focused on: nasal obstruction, rhinorrhea, loss of sense of smell, facial pain or pressure, and headache. Total VAS score was calculated based on the sum of VAS scores of these five symptom domains. Total subjective symptoms VAS range: 0 50, with higher scores indicating greater severity of symptoms. | Scores will be recorded just before ESS and at 1-, 3-, 6- and 12-month follow-up visit. | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Total Nasal Endoscopic Scores | Nasal endoscopic evaluation was performed by the senior investigator who remained blinded to the treatment, including poly size: 0, absence of polyps; 1, polyps in middle meatus only; 2, polyps beyond middle meatus but not blocking the nose completely; and 3, polyps completely obstructing the nose; discharge: 0, no discharge; 1, clear thin discharge; 2, thick purulent discharge; edema: 0, no edema; 1, mild edema; 2, severe edema; crusting: 0, no crusting; 1, mild crusting; 2, severe crusting; scarring: 0, no scarring; 1, mild scarring; 2, severe scarring). Each side was graded separately, and the scores from both sides were added to determine the overall scores for a particular domain. The total endoscopy score was calculated based on the sum of scores of these endoscopic domains. Endoscopic scores were also recorded before ESS (baseline) and at 1-, 3-, 6- and 12-month follow-up visits. Total endoscopy score range: 0 22, with higher scores indicating greater severity. | Scores will be recorded just before ESS and at 1-, 3-, 6- and 12-month follow-up visit. |