COVID-19COVID-19NCT05685901
Oropharyngeal Immunoprophylaxis With High Polyphenolic Olive Oil as Clinical Spectrum Mitigating Factor in COVID-19.
A study testing High polyphenolic olive oil. (Early harvest olive oil). in people with COVID-19, run by Hospital General Nuestra Señora del Prado at 1 site in Spain.
Trial summary
Immunomodulation of local immune response at the oropharyngeal mucosa can hypothetically activate mucosal immunity, which can difficult SARS-CoV-2 main immune evasion mechanisms in early stages of the disease and send an effective warning to the adaptive immune system. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- COVID-19
- What is being tested?
- High polyphenolic olive oil. (Early harvest olive oil).
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 88 participants
- Where
- 1 siteSpain
- Study dates
- 1 Jul 2021to 30 Sep 2022
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Adult men and non-pregnant women were eligible if they had been in contact of recent COVID-19 diagnosed people and radomly allocated to olive oil group or not treatment at all group.
Who cannot join
- Participation in other studies the 6 months before.
- Pregnant women.
- Inabilty to oral feeding.
- Diagnosis of any pathology able to increase risk.
Trial locations and contacts
1 site in 1 country.
Spain1 site
Hospital Nuestra Señora del Prado
Talavera de la Reina, Toledo, 45600
About this study
Official title: Ensayo clínico Aleatorizado y Controlado Para la evaluación de la Eficacia y Seguridad de la Inmunoprofilaxis orofaríngea Con Aceite de Oliva Rico en Polifenoles Como atenuación y prevención de la Enfermedad Infecciosa Por el Coronavirus SARS-CoV-2.
Immunomodulation of local immune response at the oropharyngeal mucosa can hypothetically activate mucosal immunity, which can difficult SARS-CoV-2 main immune evasion mechanisms in early stages of the disease and send an effective warning to the adaptive immune system. There are previous studies on immunotherapeutic management of upper respiratory tract infections with olive polyphenols. The investigators would like to study if participants following oromucosal immunomodulation with tiny quantities of high polyphenolic olive oil (early harvest olive oil) could have more possibilities to have less severe symptoms and a better outcome after SARS-CoV-2 infection.
- Conditions
- COVID-19
- Being tested
- High polyphenolic olive oil. (Early harvest olive oil).
- Keywords
- COVID-19
- Medical subject headings
- COVID-19
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
High polyphenolic olive oil. (Early harvest olive oil).Dietary supplement
High polyphenolic olive oil is normal olive oil obtained from early harvest olives, this early harvest olive oil has been widely used for culinary purposes for centuries. The investigators wanted to study if oromucosal immunoprophylaxis with small quantities of high polyphenolic olive oil (2 mL of olive oil equivalent to 5 mg of polyphenols) adiministered twice a day could have clinical mitigating effects on the disease caused by SARS-CoV-2 infection.The primary outcome was to determine the effect of high polyphenolic olive oil on Coronavirus disease incidence, duration and severity.
| Study group | Role | What they receive |
|---|---|---|
| High polyphenolic olive oil | Experimental | Participants were required to take 2 mL of early harvest olive oil (normal early harvest olive oil) twice a day for three months and went through a clinical questionnaire at days 15, 30, 60 and 90. Participants were sent an envelope closed with instructions and informed consent. The primary outcome was to determine the effect of high polyphenolic olive oil on Coronavirus disease incidence, duration and severity. This study was approved by the independent ethic committee of the Hospital Nuestra Señora del Prado in Talavera de la Reina, belonging to the National Health System in Spain, and conducted in accordance with Declaration of Helsinki and Good Clinical Practice guidelines. Written informed consent was obtained from all patients. This questionnaire consisted in asking about having symptoms of SARS-CoV-2 infection, fever, low fever, malaise, headache, loss of smell, runny nose, sore throat. Receives: Dietary Supplement: High polyphenolic olive oil. (Early harvest olive oil). |
| No intervention | No intervention | Participants were required to complete a questionnaire at days 15, 30, 60 and 90 of the study. This questionnaire consisted in asking about having symptoms of SARS-CoV-2 infection, fever, low fever, malaise, headache, loss of smell, runny nose, sore throat. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Incidence.
High polyphenolic olive oil immunoprophylaxis intervention and incidence of COVID-19.
Measured: 3 months.
Secondary outcomes (2)
Duration-
Time to resolution of symptoms of COVID-19 in participants versus normal population.
Measured: 3 months
Severity.
Differences in severity of symptoms of COVID-19 between participants and control group.
Measured: 3 months.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Jan 2023
- Study start1 Jul 2021
- Primary completion30 Sep 2022
- Study completion30 Sep 2022
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (9)Papers the sponsor has linked to this study.
- Other trials for COVID-19Studies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind
- Who is masked
- Participant, Care provider, Investigator
- Enrolment
- 88 participants (actual)
Sponsor and investigators
- Lead sponsor
- Hospital General Nuestra Señora del Prado
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Francisco Rodríguez Argente, Hospital General Nuestra Señora del Prado
- Investigators
- Francisco Rodríguez, Principal investigator, Head of Pediatric Department.
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05685901
- Sponsor's protocol ID
- OLEOCOVID
- Acronym
- COVID-19
- Status last verified
- Jan 2023
- First submitted
- 10 Jan 2023
- Last updated
- 17 Jan 2023
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Rodriguez-Argente F, Alba-Dominguez M, Ortiz-Munoz E, Ortega-Gonzalez A. Oromucosal immunomodulation as clinical spectrum mitigating factor in SARS-CoV-2 infection. Scand J Immunol. 2021 Jan;93(1):e12972. doi: 10.1111/sji.12972. Epub 2020 Sep 18.
PubMed 32892403Greenberg SB. Update on rhinovirus and coronavirus infections. Semin Respir Crit Care Med. 2011 Aug;32(4):433-46. doi: 10.1055/s-0031-1283283. Epub 2011 Aug 19.
PubMed 21858748de Wit E, van Doremalen N, Falzarano D, Munster VJ. SARS and MERS: recent insights into emerging coronaviruses. Nat Rev Microbiol. 2016 Aug;14(8):523-34. doi: 10.1038/nrmicro.2016.81. Epub 2016 Jun 27.
PubMed 27344959Zhu N, Zhang D, Wang W, Li X, Yang B, Song J, Zhao X, Huang B, Shi W, Lu R, Niu P, Zhan F, Ma X, Wang D, Xu W, Wu G, Gao GF, Tan W; China Novel Coronavirus Investigating and Research Team. A Novel Coronavirus from Patients with Pneumonia in China, 2019. N Engl J Med. 2020 Feb 20;382(8):727-733. doi: 10.1056/NEJMoa2001017. Epub 2020 Jan 24.
PubMed 31978945Callow KA, Parry HF, Sergeant M, Tyrrell DA. The time course of the immune response to experimental coronavirus infection of man. Epidemiol Infect. 1990 Oct;105(2):435-46. doi: 10.1017/s0950268800048019.
PubMed 2170159Shi Y, Wang Y, Shao C, Huang J, Gan J, Huang X, Bucci E, Piacentini M, Ippolito G, Melino G. COVID-19 infection: the perspectives on immune responses. Cell Death Differ. 2020 May;27(5):1451-1454. doi: 10.1038/s41418-020-0530-3. Epub 2020 Mar 23. No abstract available.
PubMed 32205856Somerville V, Moore R, Braakhuis A. The Effect of Olive Leaf Extract on Upper Respiratory Illness in High School Athletes: A Randomised Control Trial. Nutrients. 2019 Feb 9;11(2):358. doi: 10.3390/nu11020358.
PubMed 30744092Brandtzaeg P. Secretory immunity with special reference to the oral cavity. J Oral Microbiol. 2013;5. doi: 10.3402/jom.v5i0.20401. Epub 2013 Mar 11.
PubMed 23487566Beilharz MW, Cummins MJ, Bennett AL, Cummins JM. Oromucosal Administration of Interferon to Humans. Pharmaceuticals (Basel). 2010 Jan 28;3(2):323-344. doi: 10.3390/ph3020323.
PubMed 27713254
Study at a glance
From the registry record, last updated by the sponsor on 17 Jan 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Ensayo clínico Aleatorizado y Controlado Para la evaluación de la Eficacia y Seguridad de la Inmunoprofilaxis orofaríngea Con Aceite de Oliva Rico en Polifenoles Como atenuación y prevención de la Enfermedad Infecciosa Por el Coronavirus SARS-CoV-2.
- ClinicalTrials.gov ID
- NCT05685901
- Acronym / sponsor ID
- COVID-19 / OLEOCOVID
- Conditions
- COVID-19
- Keywords
- COVID-19
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 88 participants (actual)
- Lead sponsor
- Hospital General Nuestra Señora del PradoUniversity, hospital or other
- Study start
- 1 Jul 2021 (actual)
- Primary completion
- 30 Sep 2022 (actual)
- Study completion
- 30 Sep 2022 (actual)
- First posted
- 17 Jan 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Immunomodulation of local immune response at the oropharyngeal mucosa can hypothetically activate mucosal immunity, which can difficult SARS-CoV-2 main immune evasion mechanisms in early stages of the disease and send an effective warning to the adaptive immune system. There are previous studies on immunotherapeutic management of upper respiratory tract infections with olive polyphenols. The investigators would like to study if participants following oromucosal immunomodulation with tiny quantities of high polyphenolic olive oil (early harvest olive oil) could have more possibilities to have less severe symptoms and a better outcome after SARS-CoV-2 infection.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, care provider, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| High polyphenolic olive oil | Experimental | Dietary Supplement: High polyphenolic olive oil. (Early harvest olive oil).Participants were required to take 2 mL of early harvest olive oil (normal early harvest olive oil) twice a day for three months and went through a clinical questionnaire at days 15, 30, 60 and 90. Participants were sent an envelope closed with instructions and informed consent. The primary outcome was to determine the effect of high polyphenolic olive oil on Coronavirus disease incidence, duration and severity. This study was approved by the independent ethic committee of the Hospital Nuestra Señora del Prado in Talavera de la Reina, belonging to the National Health System in Spain, and conducted in accordance with Declaration of Helsinki and Good Clinical Practice guidelines. Written informed consent was obtained from all patients. This questionnaire consisted in asking about having symptoms of SARS-CoV-2 infection, fever, low fever, malaise, headache, loss of smell, runny nose, sore throat. |
| No intervention | No intervention | –Participants were required to complete a questionnaire at days 15, 30, 60 and 90 of the study. This questionnaire consisted in asking about having symptoms of SARS-CoV-2 infection, fever, low fever, malaise, headache, loss of smell, runny nose, sore throat. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- Adult men and non-pregnant women were eligible if they had been in contact of recent COVID-19 diagnosed people and radomly allocated to olive oil group or not treatment at all group.
Key exclusion criteria (4 listed)
- Participation in other studies the 6 months before.
- Pregnant women.
- Inabilty to oral feeding.
- Diagnosis of any pathology able to increase risk.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| High polyphenolic olive oil. (Early harvest olive oil).High polyphenolic olive oil is normal olive oil obtained from early harvest olives, this early harvest olive oil has been widely used for culinary purposes for centuries. The investigators wanted to study if oromucosal immunoprophylaxis with small quantities of high polyphenolic olive oil (2 mL of olive oil equivalent to 5 mg of polyphenols) adiministered twice a day could have clinical mitigating effects on the disease caused by SARS-CoV-2 infection.The primary outcome was to determine the effect of high polyphenolic olive oil on Coronavirus disease incidence, duration and severity. | Dietary supplement | High polyphenolic olive oil |
Primary outcome
Incidence.
Time frame: 3 months.
High polyphenolic olive oil immunoprophylaxis intervention and incidence of COVID-19.
2 secondary outcomes
Duration-
Time frame: 3 months
Severity.
Time frame: 3 months.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Jan 2023.
- Background: PubMed 32892403Rodriguez-Argente F, Alba-Dominguez M, Ortiz-Munoz E, Ortega-Gonzalez A. Oromucosal immunomodulation as clinical spectrum mitigating factor in SARS-CoV-2 infection. Scand J Immunol. 2021 Jan;93(1):e12972. doi: 10.1111/sji.12972. Epub 2020 Sep 18.
- Background: PubMed 21858748Greenberg SB. Update on rhinovirus and coronavirus infections. Semin Respir Crit Care Med. 2011 Aug;32(4):433-46. doi: 10.1055/s-0031-1283283. Epub 2011 Aug 19.
- Background: PubMed 27344959de Wit E, van Doremalen N, Falzarano D, Munster VJ. SARS and MERS: recent insights into emerging coronaviruses. Nat Rev Microbiol. 2016 Aug;14(8):523-34. doi: 10.1038/nrmicro.2016.81. Epub 2016 Jun 27.
- Background: PubMed 31978945Zhu N, Zhang D, Wang W, Li X, Yang B, Song J, Zhao X, Huang B, Shi W, Lu R, Niu P, Zhan F, Ma X, Wang D, Xu W, Wu G, Gao GF, Tan W; China Novel Coronavirus Investigating and Research Team. A Novel Coronavirus from Patients with Pneumonia in China, 2019. N Engl J Med. 2020 Feb 20;382(8):727-733. doi: 10.1056/NEJMoa2001017. Epub 2020 Jan 24.
- Background: PubMed 2170159Callow KA, Parry HF, Sergeant M, Tyrrell DA. The time course of the immune response to experimental coronavirus infection of man. Epidemiol Infect. 1990 Oct;105(2):435-46. doi: 10.1017/s0950268800048019.
- Background: PubMed 32205856Shi Y, Wang Y, Shao C, Huang J, Gan J, Huang X, Bucci E, Piacentini M, Ippolito G, Melino G. COVID-19 infection: the perspectives on immune responses. Cell Death Differ. 2020 May;27(5):1451-1454. doi: 10.1038/s41418-020-0530-3. Epub 2020 Mar 23. No abstract available.
- Background: PubMed 30744092Somerville V, Moore R, Braakhuis A. The Effect of Olive Leaf Extract on Upper Respiratory Illness in High School Athletes: A Randomised Control Trial. Nutrients. 2019 Feb 9;11(2):358. doi: 10.3390/nu11020358.
- Background: PubMed 23487566Brandtzaeg P. Secretory immunity with special reference to the oral cavity. J Oral Microbiol. 2013;5. doi: 10.3402/jom.v5i0.20401. Epub 2013 Mar 11.
- Background: PubMed 27713254Beilharz MW, Cummins MJ, Bennett AL, Cummins JM. Oromucosal Administration of Interferon to Humans. Pharmaceuticals (Basel). 2010 Jan 28;3(2):323-344. doi: 10.3390/ph3020323.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Francisco Rodríguez principal investigator
Head of Pediatric Department.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing High polyphenolic olive oil. (Early harvest olive oil). in people with COVID-19, run by Hospital General Nuestra Señora del Prado at 1 site in Spain.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 17 Jan 2023. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Incidence. (time frame: 3 months.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05685901, which also lists 9 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Jan 2023.