Review Article

ROS-Mediated Cancer Cell Killing through Dietary Phytochemicals

Table 2

Clinical trials of natural phytochemicals.

Bioactive compounds
(Clinicaltrials.gov identifier)
Disease conditionPhaseDosageStudy goal

Quercetin
(NCT03476330)
Squamous cell carcinomaII4 g/dayEfficacy in reducing buccal micronuclei in patients with Fanconi anemia
Curcumin
(NCT03769766)
Prostate cancerIII500 mg, 2x/dayEffect on prostate cancer progression
(NCT00094445)Pancreatic cancerII8 g/dayEffect in pancreatic cancer growth and the safety of treatment
(NCT01246973)Radiation dermatitisIII500 mg, 3x/dayEffect on dermatitis caused by radiation therapy in breast cancer patients
With piperine
(NCT02598726)
NeoplasmsIA dose escalation studyOptimal biological dose in cancer patients
Capsaicin
(NCT02037464)
Prostate cancerII2 capsules/day for 6 monthsExpression of Ki67 and p27 in a posttreatment biopsy
(NCT00003610)Head & neck cancer, mucositisIII4 lozenges/day up to 2 weeks after radiation therapyEfficacy of lozenges in patients with mucositis caused by radiation therapy
Patch (Qutenza) (NCT03317613)CancerIIQutenza (8% capsaicin patch) for every 3 monthsEfficacy in peripheric neuropathic pain in cancer patients
EGCG
(NCT02891538)
Colon cancerEarly I450 mg, 2x/dayChemopreventive effects
(NCT01317953)Small cell lung carcinomaI to Side effects and best dose
PEITC
(NCT00691132)
Lung cancerII4x/day for 5 days in week 4Effect in preventing lung cancer in smokers
(NCT01790204)Oral cancerI & IIEffect on oral cells with mutant p53
Nutri-PEITC jelly
(NCT03034603)
Head & neck neoplasms200 mg/day, 5 days/week for 3 monthsSafety and efficacy
Resveratrol
(NCT00256334)
Colon cancerI20 mg/dayModulation of Wnt signalling in vivo
(NCT01476592)Neuroendocrine tumor5 g/dayEffect on Notch-1 signalling
SRT501
(NCT00920803)
Colorectal cancerI5 g/daySafety and tolerability