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All Studies   Meta Analysis   Recent:  
0 0.5 1 1.5 2+ Recovery, day 10, dyspnea 62% Improvement Relative Risk Recovery, day 10, smell -280% Recovery, day 10, taste -166% Recovery, day 10, fatigue -4% Recovery, day 10, heada.. -42% Recovery, day 5, dyspnea 42% Recovery, day 5, fever 73% Recovery, day 5, smell -93% Recovery, day 5, taste -61% Recovery, day 5, fatigue 22% Recovery, day 5, headache -3% Nigella Sativa  Bin Abdulrahman et al.  EARLY TREATMENT  DB RCT Is early treatment with nigella sativa beneficial for COVID-19? Double-blind RCT 231 patients in Saudi Arabia Improved recovery with nigella sativa (not stat. sig., p=0.37) Bin Abdulrahman et al., Int. J. Enviro.., Sep 2022 Favors nigella sativa Favors control

The Effect of Short Treatment with Nigella Sativa on Symptoms, the Cluster of Differentiation (CD) Profile, and Inflammatory Markers in Mild COVID-19 Patients: A Randomized, Double-Blind Controlled Trial

Bin Abdulrahman et al., International Journal of Environmental Research and Public Health, doi:10.3390/ijerph191811798
Sep 2022  
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RCT 262 mild cases in Saudi Arabia, showing no significant difference in outcomes. The only symptomatic outcomes provided are for individual symptoms, with large differences in the baseline frequencies. 75 patients were lost to followup with the primary reason being early recovery. A higher percentage of patients were lost to followup in the treatment groups. This study is excluded in meta analysis: only individual symptom data provided, differences in baseline frequencies, significant loss to followup due to recovery with greater frequency in treatment groups.
risk of no recovery, 62.0% lower, RR 0.38, p = 0.37, treatment 4 of 179 (2.2%), control 1 of 17 (5.9%), NNT 27, all treatment groups combined, day 10, dyspnea.
risk of no recovery, 279.9% higher, RR 3.80, p = 0.21, treatment 40 of 179 (22.3%), control 1 of 17 (5.9%), all treatment groups combined, day 10, smell.
risk of no recovery, 165.9% higher, RR 2.66, p = 0.48, treatment 28 of 179 (15.6%), control 1 of 17 (5.9%), all treatment groups combined, day 10, taste.
risk of no recovery, 4.5% higher, RR 1.04, p = 1.00, treatment 11 of 179 (6.1%), control 1 of 17 (5.9%), all treatment groups combined, day 10, fatigue.
risk of no recovery, 42.5% higher, RR 1.42, p = 1.00, treatment 15 of 179 (8.4%), control 1 of 17 (5.9%), all treatment groups combined, day 10, headache.
risk of no recovery, 41.7% lower, RR 0.58, p = 0.35, treatment 13 of 212 (6.1%), control 2 of 19 (10.5%), NNT 23, all treatment groups combined, day 5, dyspnea.
risk of no recovery, 73.1% lower, RR 0.27, p = 0.06, treatment 9 of 212 (4.2%), control 3 of 19 (15.8%), NNT 8.7, all treatment groups combined, day 5, fever.
risk of no recovery, 92.7% higher, RR 1.93, p = 0.14, treatment 86 of 212 (40.6%), control 4 of 19 (21.1%), all treatment groups combined, day 5, smell.
risk of no recovery, 61.3% higher, RR 1.61, p = 0.31, treatment 72 of 212 (34.0%), control 4 of 19 (21.1%), all treatment groups combined, day 5, taste.
risk of no recovery, 22.3% lower, RR 0.78, p = 0.58, treatment 52 of 212 (24.5%), control 6 of 19 (31.6%), NNT 14, all treatment groups combined, day 5, fatigue.
risk of no recovery, 3.1% higher, RR 1.03, p = 1.00, treatment 46 of 212 (21.7%), control 4 of 19 (21.1%), all treatment groups combined, day 5, headache.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Bin Abdulrahman et al., 19 Sep 2022, Double Blind Randomized Controlled Trial, placebo-controlled, Saudi Arabia, peer-reviewed, mean age 35.2, 14 authors.
Contact: (corresponding author).
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The Effect of Short Treatment with Nigella Sativa on Symptoms, the Cluster of Differentiation (CD) Profile, and Inflammatory Markers in Mild COVID-19 Patients: A Randomized, Double-Blind Controlled Trial
Khalid A Bin Abdulrahman, Abdullah Bamosa, Abdullah I Bukhari, Intisar Ahmad Siddiqui, Mostafa A Arafa, Ashfaq A Mohsin, Mamdouh Faleh Althageel, Majed Owed Aljuaeed, Ibrahim Mohammed Aldeailej, Abdulaziz Alrajeh, Kamel Aldosari, Najat Ahmed Hawsawi, Khalid Zawbaee, Saad Mohammed Alsurayea
International Journal of Environmental Research and Public Health, doi:10.3390/ijerph191811798
The current study investigated the impact of different doses of Nigella sativa seeds on the symptoms, the cluster of differentiation profile group, and inflammatory markers of mild COVID-19 cases. Methods: The study was a double-blind placebo-controlled clinical trial. Patients with mild and asymptomatic SARS-CoV-2 infection patients were randomly subdivided into seven subgroups: Group (GP) 1: received charcoal capsules as a control group, and GP 2: received three capsules of whole Nigella sativa seeds daily, two capsules in the morning and one in the evening; GP 3: received three capsules of whole Nigella sativa seeds every 12 h, GP 4: received five capsules in the morning and four capsules of whole Nigella sativa seeds in the evening, GP 5: received one capsule of Nigella sativa powder every 12 h; GP 6: received two capsules of Nigella sativa powder every 12 h; GP 7: received three capsules of Nigella sativa powder every 12 h; all treatment course was for ten days. Inflammatory parameters were assessed before and after interventions. Results: 262 subjects were included in the final analysis. No significant difference was detected regarding age, gender, and nationality. No significant differences were detected between the inflammatory marker in all groups. The WBCs showed a significant difference between before and after the intervention. While for procalcitonin, a significant difference was demonstrated in groups 1,4, and 6. Conclusions: The current randomized clinical trial did not reveal a significant effect of ten days of treatment with various doses of Nigella sativa on symptoms, differentiation profile, and inflammatory markers of patients with COVID-19. As a natural product, the effect of Nigella sativa on disease requires weeks to manifest itself.
Conflicts of Interest: The authors declare no conflict of interest. All coauthors have seen and agree with the manuscript's contents, and there is no financial interest to report. Furthermore, the authors certify that the submission is original work and is not under review in any other publication.
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