Table 1.

Table summarizing clinical studies in which AHR activators were used.

Compound	Formulation	Target Population	Type of Study	Reference
Indigo Naturalis	Capsules 0.5–2.0 g per day	Ulcerative colitis	multicenter, randomized, double-blind clinical trial	[98]
Indigo Naturalis	Suppositories 50 mg per day	Ulcerative colitis	open-label, single-center study	[99]
Indigo Naturalis	Capsules 1 g per day	Ulcerative colitis	multicenter, randomized, placebo-controlled trial	[100]
Indigo Naturalis	Capsules 500 mg–1.5 g/day	Ulcerative colitis	open-label, dose-escalation study	[102]
QingDai	Capsules Indigo Naturalis 1.5 g + Curcumin 500 mg	Ulcerative colitis	Part 1: open-label trial Part 2: double-blind, randomized, placebo-controlled	[103]