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All Studies   Meta Analysis    Recent:   
0 0.5 1 1.5 2+ Recovery 29% Improvement Relative Risk Recovery (b) 71% Recovery (c) 77% Recovery (d) 86% Viral clearance, day 14 91% Viral clearance, day 7 74% Quercetin  Din Ujjan et al.  EARLY TREATMENT  RCT Is early treatment with quercetin + curcumin and vitamin D beneficial for COVID-19? RCT 50 patients in Pakistan (September 2021 - January 2022) Improved recovery with quercetin + curcumin and vitamin D (not stat. sig., p=0.11) c19early.org Din Ujjan et al., Frontiers in Nutrition, Jan 2023 Favors quercetin Favors control

The possible therapeutic role of curcumin and quercetin in the early-stage of COVID-19—Results from a pragmatic randomized clinical trial

Din Ujjan et al., Frontiers in Nutrition, doi:10.3389/fnut.2022.1023997, NCT04603690
Jan 2023  
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Quercetin for COVID-19
24th treatment shown to reduce risk in July 2021
 
*, now known with p = 0.0031 from 11 studies.
No treatment is 100% effective. Protocols combine complementary and synergistic treatments. * >10% efficacy in meta analysis with ≥3 clinical studies.
3,800+ studies for 60+ treatments. c19early.org
Small RCT with 50 outpatients, 25 treated with curcumin, quercetin, and vitamin D, showing improved recovery and viral clearance with treatment. 168mg curcumin, 260mg, 360IU vitamin D3 daily for 14 days.
This is the 9th of 10 COVID-19 RCTs for quercetin, which collectively show efficacy with p=0.0049.
This is the 10th of 11 COVID-19 controlled studies for quercetin, which collectively show efficacy with p=0.0031.
Study covers vitamin D, curcumin, and quercetin.
risk of no recovery, 28.6% lower, RR 0.71, p = 0.11, treatment 15 of 25 (60.0%), control 21 of 25 (84.0%), NNT 4.2, no symptoms, day 7.
risk of no recovery, 71.4% lower, RR 0.29, p < 0.001, treatment 6 of 25 (24.0%), control 21 of 25 (84.0%), NNT 1.7, <= 1 symptom, day 7.
risk of no recovery, 76.9% lower, RR 0.23, p = 0.005, treatment 3 of 25 (12.0%), control 13 of 25 (52.0%), NNT 2.5, <= 2 symptoms, day 7.
risk of no recovery, 85.7% lower, RR 0.14, p = 0.23, treatment 0 of 25 (0.0%), control 3 of 25 (12.0%), NNT 8.3, relative risk is not 0 because of continuity correction due to zero events (with reciprocal of the contrasting arm), <= 3 symptoms, day 7.
risk of no viral clearance, 90.9% lower, RR 0.09, p = 0.05, treatment 0 of 25 (0.0%), control 5 of 25 (20.0%), NNT 5.0, relative risk is not 0 because of continuity correction due to zero events (with reciprocal of the contrasting arm), day 14.
risk of no viral clearance, 73.7% lower, RR 0.26, p < 0.001, treatment 5 of 25 (20.0%), control 19 of 25 (76.0%), NNT 1.8, day 7.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Din Ujjan et al., 18 Jan 2023, Randomized Controlled Trial, Pakistan, peer-reviewed, 6 authors, study period 21 September, 2021 - 21 January, 2022, this trial uses multiple treatments in the treatment arm (combined with curcumin and vitamin D) - results of individual treatments may vary, trial NCT04603690 (history).
This PaperQuercetinAll
The possible therapeutic role of curcumin and quercetin in the early-stage of COVID-19—Results from a pragmatic randomized clinical trial
Ikram Din Ujjan, Saeed Khan, Roohi Nigar, Hammad Ahmed, Sagheer Ahmad, Amjad Khan
Frontiers in Nutrition, doi:10.3389/fnut.2022.1023997
A (2023) The possible therapeutic role of curcumin and quercetin in the early-stage of COVID-19-Results from a pragmatic randomized clinical trial.
Ethics statement The study was approved by the Research Ethics Committee (REC), Liaquat University of Medical and Health Sciences (LUMHS), Jamshoro, Pakistan via Ref. No. LUMHS/REC/-137. The patients/participants provided their written informed consent to participate in this study. Author contributions IU: study design, data collection, data interpretation, supervision, and critical revision of the manuscript. SK: study design, data interpretation, and manuscript revision. RN: data collection, supervision, and manuscript revision. HA: study administration, data collection, and manuscript Conflict of interest The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. Publisher's note All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.
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