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CompletedNCT04903184Updated Jan 26, 2023

Exploratory Study to Evaluate the Efficacy of RUTI® Against SARS-COV-2 Infection (COVID-19) in Healthcare Workers

A Phase 2 interventional study of RUTI® vaccine and Placebo in Covid-19, sponsored by RUTI Immunotherapeutics S.L.. Completed at 6 sites in Argentina. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2023-01-26.

Sponsored by RUTI Immunotherapeutics S.L. · Phase 2, Interventional, and Prevention

From the registry’s dates

  • Registered 4 months after the study started (first participant enrolled Jan 2021, registered May 2021).
Phase
Phase 2
Study type
Interventional
Enrollment
251
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The aim of this study is to explore potential for reduction of incidence and/or morbidity of SARS-CoV-2 infection in healthcare personnel. The study will include a comparison between placebo and RUTI® vaccine in a 2:1 design.

02

Conditions studied

  • Covid-19

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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 251 is above the median of 100 across 4,099 interventional studies indexed under COVID-19.

Browse COVID-19 studies →

Lead sponsor

This is the only study on the registry with RUTI Immunotherapeutics S.L. as lead sponsor.

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

04

Who can participate

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

Inclusion criteria

  1. Sign the Informed Consent before initiating the selection procedures.
  2. Population:

    1. Healthcare system workers working in contact with subjects potentially infected with SARS-CoV-2
    2. People between 18 years and 59 years
  3. Willingness to meet the requirements of the protocol.
  4. Negative Rapid Serological Test of SARS-CoV-2
  5. The participant must agree to use effective contraceptive methods during the study period, in case of childbearing age.

Exclusion criteria

Exclusion Criteria:

  1. Previous SARS-CoV-2 infection
  2. Pregnancy. Pregnancy test will be performed in case of doubt.
  3. Breastfeeding.
  4. Suspected of active viral or bacterial infection.
  5. Symptoms compatible with COVID-19, despite a negative polymerase chain reaction (PCR) test.
  6. Vaccination in the last 4 weeks or planned vaccination during the study period, except for influenza vaccine.
  7. Participation in a research that requires experimental intervention (does not include observational studies) in the previous month before signing the Consent or during the study.
  8. Severely immunocompromised people. This exclusion category includes:

    • Subjects with human immunodeficiency virus (HIV-1).
    • Neutropenic subjects with less than 500 neutrophils / mm3.
    • Subjects with solid organ transplantation.
    • Subjects with bone marrow transplantation.
    • Subjects undergoing chemotherapy.
    • Subjects with primary immunodeficiency.
    • Severe lymphopenia with less than 400 lymphocytes / mm3.
  9. Malignancy, or active solid or non-solid lymphoma from the previous two years.
  10. Soy allergy.
  11. Direct involvement in the design or execution of the RUTICOVID19 clinical trial.
  12. Retirement, transfer, long-term leave (> 1 month) due to scheduled surgery or any other event that makes it impossible to work in person at your health center during the months following the recruitment to the study.
  13. Do not have a smartphone.
  14. Detection by the researcher of lack of knowledge or willingness to participate and comply with all requirements of the protocol.
  1. Any other findings that, at the discretion of the researcher, may compromise compliance with the protocol or that may influence significantly the interpretation or the results of the effects of the vaccine.
05

Study design

Phase
Phase 2
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
251 participants (actual)

Study arms

  • Experimental
    Group RUTI

    Participants will receive two dose of RUTI® vaccine at the baseline visit and after 2 weeks +/- 3 days, which will be administered subcutaneously in the deltoid region at a dose of 25 µg of fragmented, purified and liposomed heat-inactivated Mycobacterium tuberculosis bacilli in an injection volume of 0.3 mL.

    Biological: RUTI® vaccine

  • Placebo comparator
    Group Placebo

    Participants will receive two dose of physiological serum will be administered subcutaneously in the deltoid region at the baseline visit and after 2 weeks +/- 3 days.

    Biological: Placebo

Interventions

  • BiologicalRUTI® vaccine

    Each dose of the RUTI® vaccine contains 25 µg of fragmented, purified and liposomed heat-inactivated Mycobacterium tuberculosis bacilli in a total volum of 0,3mL.

  • BiologicalPlacebo

    Physiological serum, 0.9% NaCl, will be used as a placebo.

06

What researchers measure

Primary outcomes

  1. Documented cumulative incidence of SARS-CoV-2 infection

    Percent of positive serology at the end of the study or positive PCR test in the course of routine clinical practice

    Time frame: 6 months

Secondary outcomes

  1. Sick leave for SARS-CoV-2

    Number of days of documented sick leave for SARS-CoV-2

    Time frame: 6 months

  2. Days off work due to the quarantine

    The number of days off work due to the quarantine imposed as a consequence to have acute respiratory symptoms, fever or infection documented by SARS-CoV-2

    Time frame: 6 months

  3. Quarantine imposed by close contact outside the center with SARS-CoV-2 positive

    Number of days of quarantine imposed by close contact outside the center with SARS-CoV-2 positive

    Time frame: 6 months

  4. Fever

    Number of days of self-reported fever (≥38 ºC)

    Time frame: 6 months

  5. Incidence of self-reported acute respiratory symptoms

    Cumulative incidence of self-reported acute respiratory symptoms

    Time frame: 6 months

  6. Days of self-reported acute respiratory symptoms

    Number of days of self-reported acute respiratory symptoms

    Time frame: 6 months

  7. Incidence of pneumonia

    Presence of compatible symptoms and radiological or tomographic focal alteration in the context of a confirmed diagnosis of Covid-19 infection and without evidence of other concomitant pathologies

    Time frame: 6 months

  8. Incidence of death from SARS-CoV-2 infection

    Cumulative incidence of death from documented SARS-CoV-2 infection

    Time frame: 6 months

  9. Incidence of admissions to Intensive Care Unit (ICU)

    Cumulative incidence of admissions to intensive care unit for documented SARS-CoV-2 infection

    Time frame: 6 months

  10. Days in ICU

    Number of days admitted to the ICU for documented SARS-CoV-2 infection

    Time frame: 6 months

  11. Incidence of mechanical ventilation

    Cumulative incidence of need for mechanical ventilation due to documented SARS-CoV-2 infection

    Time frame: 6 months

  12. Incidence of hospital admissions

    Cumulative incidence of hospital admissions for documented SARS-CoV-2 infection

    Time frame: 6 months

  13. Days of hospitalization

    Number of days of hospitalization for documented SARS-CoV-2 infection

    Time frame: 6 months

  14. Incidence of SARS-CoV-2 antibodies

    Incidence of SARS-CoV-2 antibodies at the end of the study period

    Time frame: Study completion, an average of 1 year

  15. Types of antibodies detected

    Frequency of immunoglobulin IgG and immunoglobulin IgM

    Time frame: Study completion, an average of 1 year

  16. Levels of SARS-CoV-2 antibodies

    Levels of SARS-CoV-2 antibodies

    Time frame: Study completion, an average of 1 year

Other outcomes

  1. Incidence of Treatment-Emergent Adverse Events

    All adverse events reported by the subjects, both serious and non-serious, will be collected. All events related to a SARS-CoV-2 infection will be exempted from collection as part of the associated symptoms

    Time frame: 6 months

07

Study locations

6 sites
  • Hospital General de Agudos Dr. Ignacio Pirovano
    Buenos Aires, Argentina
  • Hospital Italiano de Buenos Aires
    Buenos Aires, Argentina
  • Hospital General
    Mendoza, Argentina
  • Hospital José Néstor Lencinas
    Mendoza, Argentina
  • Hospital Materno Infantil "Dr. Héctor Quintana"
    San Salvador De Jujuy, Argentina
  • Hospital de Clínicas Presidente Dr. Nicolás Avellaneda
    Tucumán, Argentina
08

References and documents

Individual participant data

Plan to share: No

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 26, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04903184
Lead sponsor
RUTI Immunotherapeutics S.L.
Responsible party
Sponsor
First posted
May 26, 2021
Start date
Jan 6, 2021
Primary completion
Nov 11, 2021
Completion
Nov 11, 2021
Last update
Jan 26, 2023

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 2023. You cannot join it, but the record below documents what was studied.

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