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CompletedNCT04553705Updated Sep 23, 2025

Omega-3, Nigella Sativa, Indian Costus, Quinine, Anise Seed, Deglycyrrhizinated Licorice, Artemisinin, Febrifugine on Immunity of Patients With (COVID-19)

A Phase 2/3 interventional study of Omega 3/Nigella Sativa Oil and Omega 3/Nigella Sativa Oil/Indian Costus in Covid19 and Immunodeficiency, sponsored by Beni-Suef University. Completed at 1 site in Saudi Arabia. Open to participants aged 25 Years to 40 Years. Per ClinicalTrials.gov, last updated 2025-09-23.

Sponsored by Beni-Suef University · Phase 2/3, Interventional, and Treatment

Phase
Phase 2/3
Study type
Interventional
Enrollment
150
Allocation
Randomized
Ages
25 Years to 40 Years
Sex
All
01

Study summary

The first version of this preprint article is registered on the 4th of May 2020 under the digital object identifier of:10.31219/osf.io/u56fc.

COVID-19 infections virus spread worldwide and impact many countries with sever economical sequences. The effective antiviral medication or vaccination for the virus is unavailable until the present date and it takes months or years to discover the effective treatment or test the efficacy of the discovered treatment.

Based on these facts, the human immune system against the virus may have an effective role to regulate the infection and reduce the mortality rate among the infected patients. This proposed research article aims to explore the available medication/ natural supplementation to boost the immunity system of the patients against COVID-19 infections and reduce the mortality rate among infected patients. Methods: a proposed clinical trial will be carried out to investigate the effect of the different treatment modalities on the human immune system against COVID-19 infection.

Read the detailed description

Natural supplementations have many reported effects on the human health ranged from immunity boosting to effective antiviral effect. Omeg-3 as an example affect the human health by many mechanisms e.g. Anti-oxidant, immunity boosting agent. Moreover, Omega-3 exerts an antiviral effect on Flu virus by inhibiting influenza virus replication 1. On the other hand, black seed supplementation exerts a chelation effect on sickle cell anemia patients and inhibits Human Heme Metabolism 2. Moreover, black seed exerts an antiviral effect on the replication of old coronavirus and the expression of (TRP-genes) family 3. In addition, Omega-3 regulates the human immunity against bacterial and viral infections 4. During the past years, many natural sources exerts an antimalarial effect with perfect reported results 5.

02

Conditions studied

  • Covid19
  • Immunodeficiency

Keywords

  • COVID-19
  • omega3
  • thymoquinone
03

In context

COVID-19

7,640 studies on the registry are indexed under COVID-19; 488 are open to participants now.

This study's enrollment of 150 is above the median of 100 across 4,099 interventional studies indexed under COVID-19.

Browse COVID-19 studies →

Lead sponsor

Beni-Suef University is the lead sponsor of 333 studies on the registry; 116 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
25 Years to 40 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Symptomatic with respiratory or systemic symptoms
  • Positive nasopharyngeal swab for COVID-19
  • CT imaging showing viral pneumonia
  • Temperature 38°C
  • Respiratory rate \< 25 /min
  • Oxygen saturation (pulse oximetry) >95%

Exclusion criteria

Exclusion Criteria:

  • Pregnant or breast feeding
  • Hepatic failure Child-Pugh C
  • Negative swab test of (SARS)-(CoV-2)
  • Expected life is less than 24 hours
  • End-stage lung disease
05

Study design

Phase
Phase 2 / Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Sequential assignment
Masking
Double (Participant, Care provider)
Enrollment
150 participants (actual)

Study arms

  • Experimental
    Omega-3/thymoquinone supplementation

    10 patients that will receive every 14-days Omega-3/thymoquinone supplementation (300-400mg EPA \& 200-300mg DHA) (3% thymoquinone) per day for one month. In addition to the standard care

    Drug: Omega 3/Nigella Sativa Oil

  • Experimental
    Omega-3/thymoquinone / Indian Costus supplementation

    10 patients that will receive every 14-days Omega-3/thymoquinone supplementation (300-400mg EPA \& 200-300mg DHA), (3% thymoquinone),(Indian Costus) per day for one month. In addition to the standard care

    Drug: Omega 3/Nigella Sativa Oil/Indian Costus

  • Experimental
    Omega-3/thymoquinone / Quinine pills

    10 patients that will receive every 14-days Omega-3/thymoquinone supplementation (300-400mg EPA \& 200-300mg DHA), (3% thymoquinone),(1g Quinine) per day for one month. In addition to the standard care

    Drug: Omega 3/Nigella Sativa Oil/Quinine pills

  • Experimental
    Omega-3/thymoquinone / Anise seed capsule

    10 patients that will receive every 14-days Omega-3/thymoquinone supplementation (300-400mg EPA \& 200-300mg DHA), (3% thymoquinone),(450mg anise seed) per day for one month. In addition to the standard care

    Drug: Omega 3/Nigella Sativa Oil/Anise seed capsule

  • Experimental
    Omega-3/thymoquinone / Deglycyrrhizinated Licorice

    10 patients that will receive every 14-days Omega-3/thymoquinone supplementation (300-400mg EPA \& 200-300mg DHA), (3% thymoquinone),(Deglycyrrhizinated Licorice 800 mg ) per day for one month. In addition to the standard care

    Drug: Omega 3/Nigella Sativa Oil/Deglycyrrhizinated Licorice

  • Active comparator
    Active Comparator: standard care

    The standard protocol care for COVID-19 approved from ministry of health at Saudi arabia

    Drug: Active Comparator

Interventions

  • DrugOmega 3/Nigella Sativa Oil

    Omega-3 supplementation 1000mg contains (300-400mg EPA \& 200-300mg DHA) Nigella sativa supplementation (1g black seed oil contain 3% thymoquinone

  • DrugOmega 3/Nigella Sativa Oil/Indian Costus

    Omega-3 supplementation 1000mg contains (300-400mg EPA \& 200-300mg DHA) Nigella sativa supplementation (1g black seed oil contain 3% thymoquinone Indian Costus supplements

  • DrugOmega 3/Nigella Sativa Oil/Quinine pills

    Omega-3 supplementation 1000mg contains (300-400mg EPA \& 200-300mg DHA) Nigella sativa supplementation (1g black seed oil contain 3% thymoquinone Quinine supplementation (1g Quinine)

  • DrugOmega 3/Nigella Sativa Oil/Anise seed capsule

    Omega-3 supplementation 1000mg contains (300-400mg EPA \& 200-300mg DHA) Nigella sativa supplementation (1g black seed oil contain 3% thymoquinone Anise seed supplementation (450mg anise seed)

  • DrugOmega 3/Nigella Sativa Oil/Deglycyrrhizinated Licorice

    Omega-3 supplementation 1000mg contains (300-400mg EPA \& 200-300mg DHA) Nigella sativa supplementation (1g black seed oil contain 3% thymoquinone Deglycyrrhizinated Licorice 800 mg

  • DrugActive Comparator

    Standard protocol care of COVID-19 infection

06

What researchers measure

Primary outcomes

  1. Clinical improvement

    Time to Clinical recovery

    Time frame: 30 Days

  2. Recovery rate from positive to negative swaps

    Percentage of patients returned to negative swaps of COVID-19

    Time frame: 14 Days

  3. Fever to normal temperature in days

    Number of days for fever remission T=37.5°C

    Time frame: 15 Days

  4. Remission of lung inflammation in CT or X-ray

    Number of days to report lungs recovery in chest X ray or CT

    Time frame: 30 Days

  5. Length of hospitalization

    Number of days for hospitalization

    Time frame: 10 Days

  6. (PCR levels) polymerase chain reaction assay levels

    Change of (PCR levels) \> 50% in comparison with PCR levels at the admission

    Time frame: 10 Days

  7. Respiratory indexes

    P O2/Fi O2 which reflects patients' oxygen saturation

    Time frame: 10 Days

  8. C-reactive protein mg/L

    C-reactive protein milligrams per deciliter correlated with inflammation

    Time frame: 25 Days

  9. Serum Ferritin ng/ml

    Serum Ferritin Nanograms per milliliter correlated with iron overload and illness severity

    Time frame: 25 Days

  10. Lactic acid dehydrogenase U/L

    Lactic acid dehydrogenase unit per litter correlated with illness severity

    Time frame: 25 Days

  11. leukocytes count μl

    leukocytes in microliter correlated with mortality

    Time frame: 30 Days

  12. Lipid profile [LDL, HDL, Total cholesterol ]

    Mg/dl correlated with lipid peroxidation that linked to oxidative stress

    Time frame: 14 Days

  13. total plasma antioxidant capacity

    Evaluate the antioxidant response against the free radicals produced in COVID-19 infection measured by ELISA

    Time frame: 14 Days

07

Study locations

1 site
  • Maternity and Children hospital
    Mecca, Mecca Region, Saudi Arabia
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 23, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT04553705
Lead sponsor
Beni-Suef University
Collaborators
Maternity and Children Hospital, Makkah, University of Arizona
Responsible party
Mohamed Medhat Abdelwahab Gamaleldin (Clinical researcher, Beni-Suef University) — Principal investigator
First posted
Sep 17, 2020
Start date
Sep 20, 2020
Primary completion
Nov 4, 2020
Completion
Dec 4, 2021
Last update
Sep 23, 2025

Study contacts

HASSAN Masmali [consultant of Pediatrics], M.D
study director · Maternity and Children hospital,Mecca, Saudi Arabia
MOHAMED M ABDELWAHAB GAMALELDIN, Ph.D Candidate
principal investigator · Beni-Suef University, Faculty of Pharmacy
SHAIMAA M Nashat SAYED ABDELHALIM, Ph.D Candidate
principal investigator · Beni-Suef University, Faculty of Pharmacy

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Sep 2025. You cannot join it, but the record below documents what was studied.

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