A phase II clinical trial of a natural formulation containing tea catechins for xerostomia

作者：De Rossi Scott S; Thoppay Jaisri; Dickinson Douglas P; Looney Stephen; Stuart Mary; Ogbureke Kalu U E; Hsu Stephen^*

来源：Oral Surgery Oral Medicine Oral Pathology Oral Radiology, 2014, 118(4): 447-U186.

DOI：10.1016/j.oooo.2014.06.015

Objective. Previous animal studies indicated catechins from the tea plant (Camellia sinensis) may modulate salivary function and possess a therapeutic effect for xerostomia. The objective of this study was to evaluate a natural formulation containing tea catechins in 60 patients with xerostomia, including patients with Sjogren syndrome. %26lt;br%26gt;Study Design. This study used a double-blind, placebo-controlled, randomized design. The functional placebo contained all natural formulation ingredients and 500 mg xylitol, but without the key plant extracts. %26lt;br%26gt;Results. After 8 weeks of therapy, the xylitol-containing placebo failed to modulate saliva output. In comparison, the catechin-containing natural formulation resulted in a statistically significant increase in unstimulated (3.8-fold) and stimulated (2.1-fold) saliva output vs baseline. The quality of life score showed a significant improvement in both groups but no significant difference between groups. %26lt;br%26gt;Conclusions. The catechin-containing natural formula partially restored salivary function in patients with xerostomia and provided an objective improvement in saliva output, which warrants large-scale clinical trials.

• 出版日期2014-10