Urinary Tract Infections Clinical Trial
Official title:
Concentrated Traditional Chinese Herbal Extract Granules TRA for Preventing Symptomatic Urinary Tract Infection Among High-risk Elderly Residing in Nursing Homes-A Randomized Placebo-Controlled Trial
Urinary tract infection (UTI) is one of the most common infection in nursing home residents,
and symptomatic UTI in the nursing home setting is the most frequent reason for
hospitalization and antimicrobial therapy in Taiwan. Increasing antimicrobial resistance has
stimulated interest in non-antibiotic prophylaxis of UTI. The primary aim of this study is to
test the efficacy of standardized concentrated herbal extract granules TRA in the reduction
of the incidence of symptomatic UTI and associated hospitalization in high-risk nursing home
residents. These aims were accomplished by conducting a double-blind randomized
placebo-controlled efficacy trial of TRA daily versus placebo granules in a cohort of
Changhua County nursing home residents in Taiwan.
A total of 164 nursing home residents at high risk for UTI were be enrolled. A permuted block
design with a block size of 6 were conducted. And a Stratification by nursing home accounted
for potentially different standards of care. Subjects will be randomly assigned to receive
either TRA (10 g) or the placebo two times per day for 42 consecutive days. All subjects in
both groups will also continuously receive their daily medication without any dose or
medicine change. Urinalysis was evaluated before and after administration. Independent
statisticians performed the data analysis at the end of the trial.
The standardized concentrated herbal extract granules TRA were the combination of "Tokoro Combination(Pi-Hsieh-Fen-Ching-Yin Extract Granules)" and "Rehmannia and Akebia Formula (Dao Chi San Extract Powder)". "Tokoro Combination" and "Rehmannia and Akebia Formula" in each one batch number were used, manufactured by Chuang Song Zong Pharmaceutical Co., Ltd., a famous GMP manufacturer of concentrated herbal extract granules in agreement with international standards. The TRA was prepared in small granules, including concentrated herbal extract granules of "Tokoro Combination"(50%) and "Rehmannia and Akebia Formula" (50%). Both medicines have already been approved by the Ministry of Health and Welfare in Taiwan as ethical drugs. TRA granules were packed in oblique glassine packages. The placebo was also prepared as granules by Chuang Song Zong Pharmaceutical Co., Ltd., and the packaging of the placebo was identical to that of TRA. The chemical composition of TRA was analyzed and profiled by using a high performance liquid chromatography (HPLC). The major components were diosgenin, yamogenin, betulin, oleanolic acid, hederagenin, akeboside, β-sitosterol, stigmasterol, inositol, catalpol, glycyrrhizin, etc. ;
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