Review Article

The Potential and Action Mechanism of Polyphenols in the Treatment of Liver Diseases

Table 4

Clinical trials of several polyphenols in liver diseases (refer to http://www.ClinicalTrials.gov website).

PolyphenolsStatusConditionsPurposeInterventionPhasehttp://ClinicalTrials.gov identifier

NAFLDCurcuminNot yet recruitingNAFLD patients with type 2 diabetesEvaluate the effects of curcumin supplement on metabolic factors and hepatic fibrosis1500 mg, 1 capsule/day for 12 weeks2/3NCT02908152
Caffeine and chlorogenic acidNot yet recruitingNAFLD patients with type 2 diabetesInvestigate the effects of caffeine and chlorogenic acid supplements on inflammatory, metabolic factors, hepatic steatosis, and fibrosis200 mg/d for 6 months2/3NCT02929901
ResveratrolCompletedObese men with NAFLDEvaluate potential metabolic effects of resveratrol500 mg 3 times daily for six months1NCT01446276
ResveratrolCompletedOverweight adolescents with NAFLD and type 2 diabetes or metabolic syndromeDemonstrate the safety and tolerability of resveratrol therapy75 mg twice daily for a total daily dose of 150 mg for the duration of 30 days2/3NCT02216552
ResveratrolCompletedObese patients with NAFLD/NASHEvaluate the effects of resveratrol500 mg 3 times daily for 6 months1NCT01464801
ResveratrolCompletedPatients with NAFLD/NASHEvaluate effects of resveratrol supplement on biochemical factors and hepatic fibrosisOne resveratrol capsule per day for 12 weeks2/3NCT02030977

HCVEGCG, silymarinCompletedHCV patientsDetermine the safety, metabolism, and antioxidant activitySilymarin capsules, 700 mg, twice daily, 12 days; EGCG capsules, 196.5 mg, twice daily, 12 days1NCT01018615
QuercetinCompletedHCV patientsEvaluate safety and antiviral activity2000 mg for 28 days1NCT01438320
NaringeninCompletedPersons infected with hepatitis CTo evaluate whether it can lower the amount of virus in the blood stream1 gram of naringenin mixed with 16 grams of hydroxypropyl-β-cyclodextrin in 250 mL of water1NCT01091077

Cirrhosis and liver cancerGreen tea catechin extractNot yet recruitingCirrhosisDefine how well it is in preventing liver cancer in patients with cirrhosisDefined green tea catechin extract for 24 weeks1NCT03278925
ResveratrolWithdrawnLiver cancerEvaluate beneficial effect in the cellular function of normal liver cells and liver cancer cells1 g daily for 10 days1/2NCT02261844