70,000
Participants
Start Date
January 1, 2017
Primary Completion Date
December 31, 2019
Study Completion Date
July 31, 2020
13-C urea breath test
"Standard urea breath test (UBT) (HELICARB, LLC ISOCARB, reg. cert. #РЗН 2016/3773 issued by Roszdravnadzor on 29.02.2016) with 13C-carbamide of 99% purity used for the study.~Samples of exhaled air obtained before and after 20 minutes after 50 mg 13C-urea intake are analysed for 13C/12C isotope ratio with the use of infrared spectrometer IRIS.Doc (Kibion, Sweden). Delta over baseline (δ) of 13C / 12C is calculated based on the results of the initial and second samples, the results were shown in ppm (‰). The results of the test is negative if δ was \<4.0‰; test results with δ ≥4.0‰ are considered positive."
Moscow Clinical Scientific Center, Moscow
"Federal State Budgetary Scientific Institution Federal Research Centre of Nutrition, Biotechnology", Moscow
Moscow Clinical Scientific Center
OTHER
St. Petersburg State Pavlov Medical University
OTHER
People's Friendship University of Russia
OTHER
"Federal State Budgetary Scientific Institution Federal Research Centre of Nutrition, Biotechnology"
OTHER