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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03180944
Other study ID # 2017SDU-QILU-G001
Secondary ID
Status Completed
Phase Phase 2
First received
Last updated
Start date September 1, 2017
Est. completion date December 30, 2018

Study information

Verified date January 2020
Source Shandong University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study was to test an optimal concentration of Lugol's solution which can reduce the mucosal irritation and provide high image quality to ensure endoscopy examination by a randomized blinded controlled trial.


Description:

It is widely accepted that chromoendoscopy using Lugol's solution is effective for the detection of early esophageal squamous neoplasia. However, this modality may cause severe chest pain and discomfort owing to mucosal irritation. The conventional concentration of Lugol's solution is in the range of 1.2% to 2.5% . Image quality can be guaranteed with this range of Lugol's solution. However, lead to retrosternal pain and discomfort, and can even induce erosion or ulceration in the esophagus and stomach. This study was to test whether a lower concentration of Lugol's solution, which has minimal mucosal irritation, can provide satisfied image quality by a randomized blinded controlled trial.


Recruitment information / eligibility

Status Completed
Enrollment 200
Est. completion date December 30, 2018
Est. primary completion date November 30, 2018
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 40 Years to 74 Years
Eligibility Inclusion Criteria:

- patients in the high-risk population of ESCC;

- or general risk population of ESCC between 40 to 74 years old. Definition of high-risk population of ESCC is list in supporting information33.

Exclusion criteria included the following:

- with obvious abnormalities in stomach, confirmed by either white-light endoscopy (WLE) or pCLE, including gastric cancer, acute erosive and hemorrhagic gastritis, chronic atrophic gastritis, H. pylori infection and severe bile reflux gastritis;

- advanced esophageal carcinoma;

- known esophageal surgery or endoscopic treatment;

- known esophageal radiotherapy or chemotherapy;

- esophageal stenosis;

- food retention;

- allergy to iodine or fluorescein sodium;

- hyperthyroid;

- coagulopathy;

- acute bleeding;

- severe organ failure;

- pregnant or breastfeeding women.

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
1.2% Lugol's solution
This group patients were given concentrations of 1.2% Lugol's solution for chromoendoscopy.Then biopsy specimens will be taken at the well-demarcated unstained or less-stained lesions.
1.0% Lugol's solution
This group patients were given concentrations of 1.0% Lugol's solution for chromoendoscopy.Then biopsy specimens will be taken at the well-demarcated unstained or less-stained lesions.
0.8% Lugol's solution
This group patients were given concentrations of 0.8% Lugol's solution for chromoendoscopy.Then biopsy specimens will be taken at the well-demarcated unstained or less-stained lesions.
0.6% Lugol's solution
This group patients were given concentrations of 0.6% Lugol's solution for chromoendoscopy.Then biopsy specimens will be taken at the well-demarcated unstained or less-stained lesions.
0.4% Lugol's solution
This group patients were given concentrations of 0.4% Lugol's solution for chromoendoscopy.Then biopsy specimens will be taken at the well-demarcated unstained or less-stained lesions.

Locations

Country Name City State
China Qilu Hospital, Shandong University Jinan Shandong

Sponsors (1)

Lead Sponsor Collaborator
Shandong University

Country where clinical trial is conducted

China, 

Outcome

Type Measure Description Time frame Safety issue
Primary Image Quality Image quality is blindly quantified by a 4-point scale from the endoscopists. A higher score representing higher image quality. intraoperative
Secondary Gastric Mucosa Injury The gastric mucosal injury caused by Lugol's solution is defined as post-staining gastritis score minus pre-staining gastritis score in pCLE. The confocal gastritis was graded 0 to 3,according to pit patterns, capillaries, and fluorescein leakage. A higher score representing more serious injury. 1 months
Secondary Adverse Events Both a written and oral form of the Numerical Rating Scale (NRS) was provided to the patients after the endoscopy examination, used for measuring patients' retrosternal pain, retrosternal discomfort, nausea, abdominal discomfort and others. In NRS, 0 is painless, 10 is the most severe pain, less than 4 is mild pain (pain does not affect sleep), 4-6 is moderate pain, and more than 7 is severe pain (pain means unable to sleep or wake up from sleep). 24 hours
Secondary Severe Adverse Events Severe adverse events includes allergic reactions, esophageal burns, spasms and even perforation. 24 hours
Secondary Tolerance The 4-point scale was used to assess the tolerance of endoscopist to the esophageal spasm caused by Lugol's solution which prevent endoscopy from passing. 1-4 means the resistance as intolerable, tolerable, mild, or non-existing. intraoperative
Secondary Histology analysis All specimens were evaluated by two experienced pathologists blind to the groups of the patients. The macroscopic and histologic diagnosis were made based on Paris classification and Vienna classification, respectively. 3-5days
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