Intralesional Steroid Injection Versus Oral Prednisolone in Prevention of Esophageal Stricture

Study Overview
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Brief Summary
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Endoscopic resection of superficial esophageal neoplasms is already a reality and presents important advantages when compared to esophagectomy as fewer complications and better quality of life. However, extensive resections can lead to difficult-to-manage stenoses. There are several therapies available in order to prevent this stenosis but, to date, there is no definition of the gold standard. The objective of this study was to compare the use of intralesional steroid injection versus oral prednisolone after endoscopic submucosal dissection and to evaluate the stenosis rate, number of dilations to resolve the stenosis and complications.

Detailed Description
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Endoscopic resection of superficial esophageal neoplasms is widely used as an alternative to esophagectomy, since it is less invasive, besides presenting good clinical results. Compared with esophagectomy, patients submitted to endoscopic resection present shorter hospitalization time, lower incidence of complications and better quality of life in the long term. However, repair of esophageal ulcer, caused by endoscopic resection, which occupies three quarters or more of the circumference of the organ, can result in the formation of stenosis. In the past, there was no consensus on the use of preventive therapies for esophageal stenosis after extensive ESD. However, Oliveira et al recently demonstrated through systematic review and meta-analysis that the use of these therapies reduces the rate of stenosis (40% on average), decreased the number of dilations to resolve the stenosis (8 sessions less ), Without altering the number of complications. Theoretically, corticosteroids are the most appropriate choice due to their mechanism of action, modulating wound healing by preventing inflammation, by reducing prolyl hydroxylase, which helps reduce collagen production. However, treatment with corticosteroids, especially at high oral doses, can cause several adverse effects, such as immunosuppression, diabetes, psychiatric disorders, osteoporosis, optic lesion and peptic ulcer. Thus, the use of local corticosteroid injection could minimize these side effects. However, local injection implies risks of bleeding and perforation, and is of limited use in patients receiving anticoagulant or antiplatelet therapy. The objective of this study was to compare the local corticosteroid injection and the use of oral corticosteroids to prevent stenosis after extensive submucosal endoscopic resection of superficial esophageal carcinoma, in relation to the stenosis rate, number of dilations necessary to resolve the stenosis and frequency of complications.

Official Title
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Prospective, Randomized Trial of Intralesional Steroid Injection Versus Oral Prednisolone in Prevention of Esophageal Stricture After Endoscopic Submucosal Dissection

Conditions
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Esophageal Stenosis

Intervention / Treatment
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* Drug: Local steroid - triamcinolone acetonide
* Drug: Oral steroid - predonisolone


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients with a diagnosis of superficial esophageal neoplasm submitted to submucosal endoscopic resection greater than 3/4 of the organ circumference; Absence of lymph node or distant metastases, evaluated through echoendoscopy, CT and PET-CT; Signed informed consent form Exclusion Criteria: Presence of invasive esophageal neoplasia Hepatical cirrhosis Diabetes mellitus with fasting glycemia above 200mg% Use of corticosteroids in the 30 days prior to ESD INR> 1.5 Platelet count less than 50,000 Active gastrointestinal ulcer Severe psychiatric illness Glaucoma History of allergy or hypersensitivity to corticosteroids or proton pump inhibitor

Ages Eligible for Study
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Minimum Age: 18 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: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Local steroid-triamcinolone acetonide<br>Local steroid (triamcinolone acetonide) injection to the ulcer immediately after ESD. Total amount of injected triamcinolone is 100 mg. | Drug: Local steroid - triamcinolone acetonide<br>* (triamcinolone acetonide)<br>|
| Active Comparator: Oral steroid-predonisolone<br>(predonisolone) administration three days after ESD. Predonisolone is administered over 8 weeks, started at 30 mg/day and tapered 30, 30, 25, 25, 20, 15, 10 and 5 every 7 days, totaling 8 weeks of treatment. | Drug: Oral steroid - predonisolone<br>* (predonisolone)<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Early Stenosis rate | Stenosis to the passage of the standard endoscopic (9.8 mm) | 12 weeks | 
| Late Stenosis rate | Stenosis to the passage of the standard endoscopic (9.8 mm) | 24 weeks | 
| Early resistance rate | Resistance to the passage of the standard endoscopic (9.8 mm) | 12 weeks | 
| Late resistance rate | Resistance to the passage of the standard endoscopic (9.8 mm) | 24 weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Number of dilations to solve the stenosis | Number of endoscopic dilations (Savary or balloon) | 24 weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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endoscopy submucosal dissection, ESD, esophageal stenosis, esophageal stricture, steroid injection, oral prednisolone