Clinical trial NCT03165344: Mixed Gel of Hydrocortisone and Aluminium Phosphate Preventing Endoscopic Submucosal Dissection Postoperative Stenosis for Patients With Large Esophageal Carcinoma
Official title: Effectiveness Evaluation of Mixed Gel of Hydrocortisone and Aluminium Phosphate Preventing Endoscopic Submucosal Dissection Postoperative Stenosis for Patients With Early Esophageal Cancer Invading More Than 2/3 Esophageal Perimeter
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Esophageal Stenosis Acquired
Lead sponsor: Peking University Third Hospital
Sponsor class: OTHER
First posted: 2017-05-24
Enrollment: 66
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: PREVENTION

Brief summary: Endoscopic submucosal dissection as the fastest growing endoscopic treatment technology in the past decade has been widely used in the treatment of early esophageal cancer and gastric cancer without local lymph node metastasis. The main complications of ESD treatment of early esophageal cancer are hemorrhage, perforation, postoperative esophageal stenosis, infection, etc. Postoperative esophageal stenosis is the most common and major complication after ESD treating patients with lesion involving more than 2/3 esophagus cycle. It is very important to prevent esophageal stricture after ESD. Glucocorticoid is gradually concerned by clinical research because it can inhibit local inflammatory response and reduce the formation of connective tissue in order to prevent postoperative stenosis. The specific usages include endoscopic injection of corticosteroids, oral corticosteroids and combination of them. The study shows that the incidence of esophageal stricture after using glucocorticoid can be reduced effectively. Currently, there is no uniform consensus on the use of glucocorticoids, such as specific drugs, dosage, course of treatment, route of administration. In particular, efficacy comparison of different routes of administration is laking. Studies have shown that endoscopic injection triamcinolone acetonide in some patients with intractable esophageal stricture is not very effective, but it can be treated with oral corticosteroids. Aluminium Phosphate Gel is a kind of neutral buffer. The main component aluminum phosphate can form a strong ion buffer system in acidic environment. The structure of its auxiliary components agar and pectin is similar to that of natural mucus. It forms a mucous layer in the esophagus to restore and protect the esophageal mucosa. Therefore, investigators assume the hydrocortisone sodium succinate aluminum phosphate mixed gel can be used for preventing postoperative ESD stenosis of patients with a large area of early esophageal cancer. This study will design a randomized controlled trial to compare the effect of oral hydrocortisone sodium succinate mixed Aluminium Phosphate Gel and local injection of triamcinolone acetonide plus oral prednisone for the prevention of ESD postoperative esophageal stricture in patients with a large area of early esophageal cancer.

Detailed description: Endoscopic submucosal dissection as the fastest growing endoscopic treatment technology in the past decade has been widely used in the treatment of early esophageal cancer and gastric cancer without local lymph node metastasis. The main complications of ESD treatment of early esophageal cancer are hemorrhage, perforation, postoperative esophageal stenosis, infection, etc. Postoperative esophageal stenosis is the most common and major complication after ESD treating patients with lesion involving more than 2/3 esophagus cycle. It is very important to prevent esophageal stricture after ESD. Glucocorticoid is gradually concerned by clinical research because it can inhibit local inflammatory response and reduce the formation of connective tissue in order to prevent postoperative stenosis. The specific usages include endoscopic injection of corticosteroids, oral corticosteroids and combination of them. The study shows that the incidence of esophageal stricture after using glucocorticoid can be reduced effectively. Currently, there is no uniform consensus on the use of glucocorticoids, such as specific drugs, dosage, course of treatment, route of administration. In particular, efficacy comparison of different routes of administration is laking. Studies have shown that endoscopic injection triamcinolone acetonide in some patients with intractable esophageal stricture is not very effective, but it can be treated with oral corticosteroids. Aluminium Phosphate Gel is a kind of neutral buffer. The main component aluminum phosphate can form a strong ion buffer system in acidic environment. The structure of its auxiliary components agar and pectin is similar to that of natural mucus. It forms a mucous layer in the esophagus to restore and protect the esophageal mucosa. Therefore, investigators assume the hydrocortisone sodium succinate aluminum phosphate mixed gel can be used for preventing postoperative ESD stenosis of patients with a large area of early esophageal cancer. This study will design a randomized controlled trial to compare the effect of oral hydrocortisone sodium succinate mixed Aluminium Phosphate Gel and local injection of triamcinolone acetonide plus oral prednisone for the prevention of ESD postoperative esophageal stricture in patients with a large area of early esophageal cancer.

The investigators will recruit patients according to admission criteria and exclusion criteria. The patients will be randomly divided into oral hydrocortisone mixed Aluminium Phosphate gel group (experimental group) and local injection of triamcinolone acetonide plus oral prednisone group (control group). The test group begin to take hydrocortisone sodium succinate mixed with Aluminium Phosphate gel after 24 hours and gradually reduse the dose. The control group will get local injection of triamcinolone acetonide in wound during the operation, and begin to take oral prednisone after 24 hours and gradually reduse the dose. The main result is esophageal stenosis rate 3 months after ESD.

Eligibility criteria: Inclusion Criteria:

1. early esophagus cancer,lesions confined to the mucosal layer,ESD treatment is feasible and the resection range is ≥ 2/3 esophageal perimeter
2. age 18 years or older
3. chest CT scan without lymph node metastasis

Exclusion Criteria:

1. patients with early esophagus cancer do not agree with endoscopic treatment
2. occurrence of perforation in ESD requires further treatment
3. lesions invading the muscularis mucosa and below
4. postoperative pathologic assessment of ESD prompting incomplete resection and requiring radiotherapy and chemotherapy

Primary outcomes:
measure: Esophageal stenosis rate
timeFrame: 3 months after ESD
Secondary outcomes:
measure: The rate of endoscopic balloon dilation and its therapeutic effect.
timeFrame: 3 months after ESD
measure: Healing condition of the wound
timeFrame: 3 months after ESD
measure: Side effect of drugs
timeFrame: 3 months after ESD
Other outcomes:
Locations:
city: Beijing
country: China
facility: Peking University Third Hospital
state: Beijing
Study officials:
affiliation: Peking University Third Hospital
name: Yonghui Huang, archiater
role: PRINCIPAL_INVESTIGATOR
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