The first study reported outside China that has examined the effects of the orally consumed goji berry

Amagase H, Nance DM: A randomized, double-blind, placebo-controlled,
clinical study of the general effects of a standardized Lycium barbarum
(Goji) Juice, GoChi. J Altern Complement Med 2008;14:403-412.

BACKGROUND: This randomized, double-blind, placebo-controlled clinical trial
is the first study reported outside China that has examined the effects of
the orally consumed goji berry, Lycium barbarum, as a standardized juice
(GoChi; FreeLife International LLC, Phoenix, AZ) to healthy adults for 14
days.