A triple-blind, placebo-controlled, randomized clinical trial to evaluate the effect of curcumin-containing nanomicelles on cellular immune responses subtypes and clinical outcome in COVID-19 patients
et al., Phytotherapy Research,
Small RCT with 40 low risk patients in Iran, 20 treated with nano-curcumin, showing no significant difference in outcomes with treatment. Authors note that treatment can improve peripheral blood inflammatory indices and modulate immune response by decreasing Th1 and Th17 responses, increasing T regulatory responses, further reducing IL-17 and IFN-γ, and increasing suppressive cytokines TGF-β and IL-4.
relative improvement in SpO2, 45.7% worse, RR 1.46, p = 0.90, treatment 20, control 20.
Effect extraction follows pre-specified rules prioritizing more serious outcomes.
Hassaniazad et al., 9/19/2021, Double Blind Randomized Controlled Trial, placebo-controlled, Iran, Middle East, peer-reviewed, 12 authors.