Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Name | Class |
|---|---|
| Ministry of Science and Technology, Brazil | OTHER |
Not provided
Not provided
Not provided
Not provided
The disease promoted by coronavirus (COVID-19) is caused by Severe Acute Respiratory Syndrome (SARS) caused by Coronavirus type 2 (CoV2), being the first cases identified in December 2019 in China after exposure to the animal market in Wuhan city, China. From the first case to the present day, the COVID-19 epidemic has been identified in 185 countries, with the notification of 2,666,154 cases and 186,144 deaths. In Brazil, more than 45,757 cases and 2,906 confirmed deaths by COVID-19 have been confirmed (Visualized on Apr 23 2020). In our country, to date, testing for COVID-19 occurs only in severe cases and few centers offer the service to health care workers, a population at high risk of infection. BCG is a vaccine produced from a live attenuated strain derived from a Mycobacterium bovis isolate and is widely used worldwide as a tuberculosis (TB) vaccine, but there are studies demonstrating non-specific immunotherapeutic mechanisms of this vaccine that signal a possible relationship with the lowest morbidity and mortality associated with COVID-19 infections worldwide. The present study aims to analyze the role of BCG in the prevention of SARS-CoV-2 infection and also in the occurrence of severe forms of COVID-19 in addition to evaluating the immune response mediated by this vaccine in voluntary health care workers.
Study detailed description can be seen on the protocol attached.
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| BCG vaccine | Experimental | 0.1 ml of the reconstituted vaccine to be administered intradermally in the lower insertion of the deltoid muscle, preferably on the right side, in only one occasion |
|
| 0.9% sodium chloride (NaCl) saline solution | Placebo Comparator | 0.1 ml of 0.9% NaCl saline solution to be administered intradermally in the lower insertion of the deltoid muscle, preferably on the right side, in only one occasion |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| BCG vaccine | Biological | Using aseptic methods, 1 mL of Sterile Water for Injection, is added to one vial of vaccine. Gently swirl the vial until a homogenous suspension is obtained. Avoid forceful agitation which may cause clumping of the mycobacteria. Drop the immunizing dose of 0.1 mL of BCG VACCINE from the syringe and needle onto the cleansed surface of the skin. |
| Measure | Description | Time Frame |
|---|---|---|
| Compare the cumulative incidence of SARS-CoV-2 infection | It is estimated that it will take 376 individuals in each of the comparison groups to ensure a statistical power of 85% for the detection of a risk difference of 5%, considering that the 6 months of follow-up, for a type I error of 5%. | 6 months |
| Compare the cumulative incidence of severe forms of COVID-19 | With 376 individuals in each of the comparison groups the study will have a statistical power of approximately 75% for the detection of a risk difference of 2%, considering that the control group will have an accumulated incidence of more severe forms of COVID-19 of 2.5% after 6 months of follow-up, for a type I error of 5%. | 6 months |
| Assess the BCG vaccine-mediated immune response in health care workers | SARS-CoV2 infection is estimated to occur in approximately 10% of BCG-vaccinated healthcare professionals (experimental group) and in 30% of non-BCG-vaccinated healthcare professionals (placebo group) In this scenario, with the bearing of 372 health professionals in each arm, SARS-CoV2 infection is expected to be detected in 50 BCG-vaccinated professionals and 150 professionals not vaccinated with BCG. For each subgroup (vaccinated and not vaccinated with BCG) it will be possible to identify the predictive biomarkers of infection by comparing infected professionals with those who were not infected with SARS-CoV2. | 6 months |
Not provided
Not provided
Inclusion Criteria:
Exclusion Criteria:
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Name | Affiliation | Role |
|---|---|---|
| Fernanda Carvalho de Q Mello, PHD | Universidade Federal do Rio de Janeiro | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Universidade Federal do Rio de Janeiro | Rio de Janeiro | Rio de Janeiro | 21941-590 | Brazil |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 21673035 | Background | Aaby P, Roth A, Ravn H, Napirna BM, Rodrigues A, Lisse IM, Stensballe L, Diness BR, Lausch KR, Lund N, Biering-Sorensen S, Whittle H, Benn CS. Randomized trial of BCG vaccination at birth to low-birth-weight children: beneficial nonspecific effects in the neonatal period? J Infect Dis. 2011 Jul 15;204(2):245-52. doi: 10.1093/infdis/jir240. | |
| 27157064 |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Type | Includes Protocol | Includes SAP | Includes ICF | Document Label | Document Date | Document Uploaded Date | Document File Name |
|---|---|---|---|---|---|---|---|
| Prot_SAP | Yes | Yes | No | Study Protocol and Statistical Analysis Plan | Sep 30, 2021 | Mar 21, 2022 | Prot_SAP_001.pdf |
| ICF | No | No | Yes | Informed Consent Form | Sep 30, 2021 | Mar 21, 2022 | ICF_002.pdf |
Not provided
| ID | Term |
|---|---|
| D000086382 | COVID-19 |
| ID | Term |
|---|---|
| D011024 | Pneumonia, Viral |
| D011014 | Pneumonia |
| D012141 | Respiratory Tract Infections |
| D007239 | Infections |
Not provided
Not provided
| ID | Term |
|---|---|
| D001500 | BCG Vaccine |
| D012965 | Sodium Chloride |
| D000077330 | Saline Solution |
| ID | Term |
|---|---|
| D032581 | Tuberculosis Vaccines |
| D001428 | Bacterial Vaccines |
| D014612 | Vaccines |
| D001688 | Biological Products |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
|
| 0.9% sodium chloride (NaCl) saline solution | Biological | A 0.1 ml of 0.9% NaCl saline solution applied intradermally in the lower insertion of the deltoid muscle of the right arm will be used as placebo, except contraindications or impossibilities. |
|
| Goodridge HS, Ahmed SS, Curtis N, Kollmann TR, Levy O, Netea MG, Pollard AJ, van Crevel R, Wilson CB. Harnessing the beneficial heterologous effects of vaccination. Nat Rev Immunol. 2016 Jun;16(6):392-400. doi: 10.1038/nri.2016.43. Epub 2016 May 9. |
| 24192057 | Background | Kleinnijenhuis J, Quintin J, Preijers F, Benn CS, Joosten LA, Jacobs C, van Loenhout J, Xavier RJ, Aaby P, van der Meer JW, van Crevel R, Netea MG. Long-lasting effects of BCG vaccination on both heterologous Th1/Th17 responses and innate trained immunity. J Innate Immun. 2014;6(2):152-8. doi: 10.1159/000355628. Epub 2013 Oct 30. |
| 27102489 | Background | Netea MG, Joosten LA, Latz E, Mills KH, Natoli G, Stunnenberg HG, O'Neill LA, Xavier RJ. Trained immunity: A program of innate immune memory in health and disease. Science. 2016 Apr 22;352(6284):aaf1098. doi: 10.1126/science.aaf1098. Epub 2016 Apr 21. |
| 24845462 | Background | Channappanavar R, Zhao J, Perlman S. T cell-mediated immune response to respiratory coronaviruses. Immunol Res. 2014 Aug;59(1-3):118-28. doi: 10.1007/s12026-014-8534-z. |
| 32437659 | Background | Netea MG, Giamarellos-Bourboulis EJ, Dominguez-Andres J, Curtis N, van Crevel R, van de Veerdonk FL, Bonten M. Trained Immunity: a Tool for Reducing Susceptibility to and the Severity of SARS-CoV-2 Infection. Cell. 2020 May 28;181(5):969-977. doi: 10.1016/j.cell.2020.04.042. Epub 2020 May 4. |
| 32330314 | Background | Ozdemir C, Kucuksezer UC, Tamay ZU. Is BCG vaccination affecting the spread and severity of COVID-19? Allergy. 2020 Jul;75(7):1824-1827. doi: 10.1111/all.14344. Epub 2020 May 12. No abstract available. |
| 32756371 | Background | Urashima M, Otani K, Hasegawa Y, Akutsu T. BCG Vaccination and Mortality of COVID-19 across 173 Countries: An Ecological Study. Int J Environ Res Public Health. 2020 Aug 3;17(15):5589. doi: 10.3390/ijerph17155589. |
| 36841502 | Derived | Santos AP, Werneck GL, Dalvi APR, Dos Santos CC, Tierno PFGMM, Condelo HS, Macedo B, de Medeiros Leung JA, de Souza Nogueira J, Malvao L, Galliez R, Aguiar R, Stefan R, Knackfuss SM, da Silva EC, Castineiras TMPP, de Andrade Medronho R, E Silva JRL, Alves RLR, de Moraes Sobrino Porto LC, Rodrigues LS, Kritski AL, de Queiroz Mello FC. The effect of BCG vaccination on infection and antibody levels against SARS-CoV-2-The results of ProBCG: a multicenter randomized clinical trial in Brazil. Int J Infect Dis. 2023 May;130:8-16. doi: 10.1016/j.ijid.2023.02.014. Epub 2023 Feb 24. |
| D014777 |
| Virus Diseases |
| D018352 | Coronavirus Infections |
| D003333 | Coronaviridae Infections |
| D030341 | Nidovirales Infections |
| D012327 | RNA Virus Infections |
| D008171 | Lung Diseases |
| D012140 | Respiratory Tract Diseases |
| D045424 |
| Complex Mixtures |
| D002712 | Chlorides |
| D006851 | Hydrochloric Acid |
| D017606 | Chlorine Compounds |
| D007287 | Inorganic Chemicals |
| D017670 | Sodium Compounds |
| D000077324 | Crystalloid Solutions |
| D007552 | Isotonic Solutions |
| D012996 | Solutions |
| D004364 | Pharmaceutical Preparations |