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CompletedNCT04989101NigCOV3Updated Jan 24, 2022

Nigelle 5 in Prevention of Influanza

An interventional study of Nigella in COVID-19 Acute Respiratory Distress Syndrome, sponsored by Hôpital Universitaire Sahloul. Completed at 1 site in Tunisia. Open to participants aged 40 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-01-24.

Sponsored by Hôpital Universitaire Sahloul · Not applicable, Interventional, and Prevention

Phase
Not applicable
Study type
Interventional
Enrollment
500
Allocation
Randomized
Ages
40 Years and older
Sex
All
01

Study summary

This study will be carried out by more than 30 liberal Tunisian doctors, who will submit according to the inclusion / exclusion criteria of people who will receive (free of charge) a capsule of the Nig5 product sublingually, each day. Against a control group which will be followed with the same protocol as the first but which will not receive the product. Randomization (even days: nigella group, odd days: control group)

Read the detailed description

This study will focus on the evaluation of the natural product Nigella Sativa in the fractalized form. "Lactose Nigelle 5" from the Tunisian company Fractal Tun, in terms of possible contribution to the prevention of influenza-like illnesses, in particular COVID-19

It will be carried out by more than 30 liberal Tunisian doctors, who will submit according to the inclusion / exclusion criteria of people who will receive (free of charge) a capsule of the Nig5 product sublingually, each day. Against a control group which will be followed with the same protocol as the first but which will not receive the product. Randomization (even days: nigella group, odd days: control group)

The monitoring and evaluation will last for 3 weeks with taking the product Nig5, followed by a week without taking the product. That is 4 weeks in all.

More than 30 physicians volunteered to participate in this study without remuneration and without consultation fees for the candidates.

This study will be supervised by Professor Riadh Boukef, head of emergency services at Sahloul University Hospital, who will collect all the data afterwards in order to submit them to the statistical tools in force.

Professor Boukef will be responsible for preparing the abstract and publishing it on his behalf in the scientific journals of his choice, naming the doctors who participated as well as the product in question and the company that markets it in Tunisia.

27 free practice doctors participate in patient recruitment: AMICHE Sondèss BAHA Mohamed BEN AMARA Mohamed Khalil BEN ARBIA Karima BEN AYAD Afef BEN AYED KTARI Fouzia BENTALEB Mourad BESBES Mohamed CHTOUROU Iteb DHOUIB Manel DJAIT Mohamed DJEMAL Najla ELFIDHA Mongi FOURATI Imen FRIH Sabria FRIKHA Fahmi GHARBI Nadia KAMMOUN Naziha KETATA Mourad MHIRI Ikram NJAH Jamil OUARGHI Sameh REGAIEG Mourad SAKKA Samar TRABELSI Hinda ZOUARI Imen ZOUARI Nassira

02

Conditions studied

  • COVID-19 Acute Respiratory Distress Syndrome

Keywords

  • Nigelle 5CH
  • Covid-19
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 500 is above the median of 100 across 4,098 interventional studies indexed under COVID-19.

Browse COVID-19 studies →

Lead sponsor

Hôpital Universitaire Sahloul is the lead sponsor of 17 studies on the registry; 2 are open to participants now.

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

04

Who can participate

Ages eligible
40 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • patients with an age> 40 years

Exclusion criteria

Exclusion Criteria:

  • Being positive for COVID or having contracted it previously
  • Positive for COVID between D1 and D5 of the study, meaning that there was infection before inclusion.
  • Immunocompromised (HIV, other ...)
  • Under chemotherapy
  • On immunosuppressants
  • Pregnant women
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
500 participants (actual)

Study arms

  • Active comparator
    Nigelle Group

    The candidate must take one capsule / day of nigella 5 for 21 days (1 bottle). Follow-up should be done weekly for 1 month.

    Drug: Nigella

  • No intervention
    Placebo Group

    Follow-up should be done weekly for 1 month.

Interventions

  • DrugNigella

    The candidate must take one capsule / day of nigella 5 for 21 days (1 bottle). Follow-up should be done weekly for 1 month.

06

What researchers measure

Primary outcomes

  1. SarsCOV2 Infection

    Respiratory infection

    Time frame: one month

Secondary outcomes

  1. Contamination

    contamination of the entourage in the event of respiratory infection by COVID19

    Time frame: one month

07

Study locations

1 site
  • HU Sahloul, sousse, Tunisia
    Sousse, Itinéraire Ceinture Cité Sahloul 4054, Tunisia
08

References and documents

Individual participant data

Plan to share: Yes — Data Statistical analysis

Supporting information: Study protocol, Sap, Csr

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 24, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04989101
Lead sponsor
Hôpital Universitaire Sahloul
Responsible party
Riadh Boukef (PROFESSOR, Hôpital Universitaire Sahloul) — Principal investigator
First posted
Aug 4, 2021
Start date
Jun 5, 2021
Primary completion
Jul 31, 2021
Completion
Aug 31, 2021
Last update
Jan 24, 2022

Study contacts

Riadh Boukef, professor
principal investigator · CHU Sahloul, Sousse, Tunisia

Oversight

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

Not currently enrolling

This study is completed, as verified in Jan 2022. You cannot join it, but the record below documents what was studied.

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