A 2013 single-blind, placebo-controlled study. 58 patients with knee osteoarthritis (OA) received either 1,000 mg/day of Turmacin® or a placebo for six weeks. There was a significant reduction in WOMAC scores, indicating reduced symptom burden in patients receiving Turmacin®. There were no changes in the placebo control group.
Madhu K, Chanda K, Saji MJ. Safety and efficacy of Curcuma longa extract in the treatment of painful knee osteoarthritis: A randomized placebo-controlled trial. Inflammopharmacology. 2013;21(2):129-136. doi:10.1007/s10787-012-0163-3.