Efficacy of a Nasal Spray Containing Iota-Carrageenan in the Prophylaxis of COVID-19 Disease in Health Personnel Dedicated to Patients Care With COVID-19 Disease (CARR-COV-02)
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ClinicalTrials.gov Identifier: NCT04521322 |
Recruitment Status : Unknown
Verified August 2020 by Ariel Dogliotti, Centro de Educación Medica e Investigaciones Clínicas Norberto Quirno.
Recruitment status was: Recruiting
First Posted : August 20, 2020
Last Update Posted : August 21, 2020
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Coronaviruses are enveloped viruses with an RNA genome. Carrageenans are sulfate polysaccharides synthesized by red algae. Studies conducted in adults and children with the common cold showed the effectiveness of the use of Carrageenan in nasal spray.
For decades, the antiviral action of Carrageenans has been described in numerous studies with different viruses that infect humans: herpes viruses types 1 and 2, human immunodeficiency virus, human papillomavirus, H1N1 influenza virus, dengue virus, rhinovirus, hepatitis A virus, and enteroviruses. Studies on the dynamics of COVID-19 disease show an intense and rapid pharyngeal multiplication in the first 3-5 days of the onset of symptoms, prior to the onset of pulmonary disease.
Finally, this molecule has shown a viricidal effect against SARS-Cov2 in vitro. All this underscores the potential value of a therapy that inhibits the virus in the rhinopharynx.
Condition or disease | Intervention/treatment | Phase |
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Covid19 | Drug: Iota-Carrageenan | Phase 4 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 400 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | Multicenter, randomized, double blind compared vs placebo |
Masking: | Double (Participant, Investigator) |
Primary Purpose: | Prevention |
Official Title: | Efficacy of a Nasal Spray Containing Iota-Carrageenan in the Prophylaxis of COVID-19 Disease in Health Personnel Dedicated to Patients Care With COVID-19. Multicenter, Randomized, Double-blind, Placebo-controlled Trial (CARR-COV-02) |
Actual Study Start Date : | July 24, 2020 |
Estimated Primary Completion Date : | October 30, 2020 |
Estimated Study Completion Date : | November 30, 2020 |

Arm | Intervention/treatment |
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Placebo Comparator: Control
Participants in this arm will receive a nasal spray with placebo
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Drug: Iota-Carrageenan
Participants will received a nasal spray with Iota-Carrageenan or placebo 4 times a day during 21 days
Other Name: Placebo |
Experimental: Experimental
Participants in this arm will receive a nasal spray with Iota-Carrageenan
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Drug: Iota-Carrageenan
Participants will received a nasal spray with Iota-Carrageenan or placebo 4 times a day during 21 days
Other Name: Placebo |
- diagnose of COVID19 disease [ Time Frame: 28 days ]COVID 19 disease will be defined for clinical diagnose and positive Polymerase Chain Reaction test
- Progression to a more severe disease state, defined as need for oxygen therapy. [ Time Frame: 28 days ]number of subjects who develop severe COVID19 disease
- lasting of disease [ Time Frame: 28 days ]number of days with clinical symptoms
- Incidence of COVID-19 disease onset in the first week after treatment [ Time Frame: 1 week after finishing treatment ]number of subjects who develop the disease within one week after finishing treatment

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- physician, nurses, and physical therapist who usually attend hospitalized COVID19 patients.
- No more than 48 hours since he/she assisted a COVID-19 patient
- Able to understand and give written informed consent
Exclusion Criteria:
- Participation in any other clinical trial of an experimental treatment for COVID-19
- Not having a cell phone with WhatsApp for remote monitoring
- Hypersensitivity or known allergy to any component of the product
- Pregnancy or lactation

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04521322
Contact: Mónica Lombardo, MD | 005491141763599 | mlombardo@nobeltri.com | |
Contact: Ricardo Valentini, MD | 005491162036790 | deptomedicina2@gmail.com |
Argentina | |
centro de educación médica e investigaciones clinicas (CEMIC) | Recruiting |
Buenos Aires, Capital Federal, Argentina, 1425 | |
Contact: Mónica Lombardo, MD 541152990600 mlombardo@nobeltri.com | |
Contact: Ricardo c Valentini +541152990600 rvalentini@cemic.edu.ar |
Study Director: | Juan Figueroa, MD | Instituto Milstein-CONICET |
Responsible Party: | Ariel Dogliotti, PHYSICIAN, Centro de Educación Medica e Investigaciones Clínicas Norberto Quirno |
ClinicalTrials.gov Identifier: | NCT04521322 |
Other Study ID Numbers: |
CEMIC |
First Posted: | August 20, 2020 Key Record Dates |
Last Update Posted: | August 21, 2020 |
Last Verified: | August 2020 |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
COVID-19 Pneumonia, Viral Pneumonia Respiratory Tract Infections Infections Virus Diseases |
Coronavirus Infections Coronaviridae Infections Nidovirales Infections RNA Virus Infections Lung Diseases Respiratory Tract Diseases |