Pawar et al., Frontiers in Pharmacology,
doi:10.3389/fphar.2021.669362 (Peer Reviewed)
Oral Curcumin With Piperine as Adjuvant Therapy for the Treatment of COVID-19: A Randomized Clinical Trial
RCT 140 patients, 70 treated with curcumin and piperine (for absorption), showing faster recovery, lower progression, and lower mortality with treatment. Control group partients also received probiotics. CTRI/2020/05/025482.
Pawar et al., 5/28/2021, Double Blind Randomized Controlled Trial, India, South Asia, peer-reviewed, 8 authors.
risk of death, 81.8% lower, RR 0.18, p = 0.02, treatment 2 of 70 (2.9%), control 11 of 70 (15.7%).
risk of death, 60.0% lower, RR 0.40, p = 0.39, treatment 2 of 15 (13.3%), control 5 of 15 (33.3%), severe group.
risk of death, 90.9% lower, RR 0.09, p = 0.05, treatment 0 of 25 (0.0%), control 5 of 25 (20.0%), continuity correction due to zero event (with reciprocal of the contrasting arm), moderate group.
risk of death, 66.7% lower, RR 0.33, p = 1.00, treatment 0 of 30 (0.0%), control 1 of 30 (3.3%), continuity correction due to zero event (with reciprocal of the contrasting arm), mild group.
Effect extraction follows
pre-specified rules
prioritizing more serious outcomes. For an individual study the most serious
outcome may have a smaller number of events and lower statistical signficance,
however this provides the strongest evidence for the most serious outcomes
when combining the results of many trials.