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  <front>
    <journal-meta>
      <journal-id journal-id-type="nlm-ta">Arq Bras Cardiol</journal-id>
      <journal-id journal-id-type="publisher-id">abc</journal-id>
      <journal-title-group>
        <journal-title>Arquivos Brasileiros de Cardiologia</journal-title>
        <abbrev-journal-title abbrev-type="publisher">Arq. Bras. Cardiol.</abbrev-journal-title>
      </journal-title-group>
      <issn pub-type="ppub">0066-782X</issn>
      <issn pub-type="epub">1678-4170</issn>
      <publisher>
        <publisher-name>Sociedade Brasileira de Cardiologia - SBC</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id specific-use="scielo-v3" pub-id-type="publisher-id">SDVKzL3fmZhBSsjtptM3Z6s</article-id>
      <article-id specific-use="scielo-v2" pub-id-type="publisher-id">S0066-782X2023000300211</article-id>
      <article-id pub-id-type="other">00211</article-id>
      <article-id pub-id-type="doi">10.36660/abc.20230147</article-id>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Minieditorial</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Iniciativas Brasileiras Lideram com Forte Coopera&#231;&#227;o Cient&#237;fica para Enfrentar Quest&#245;es da COVID-19: O Caso da Coaliz&#227;o COVID-19 Brasil</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">0000-0002-1466-9413</contrib-id>
          <name>
            <surname>Mesquita</surname>
            <given-names>Cl&#225;udio Tinoco</given-names>
          </name>
          <xref ref-type="aff" rid="aff1">
            <sup>1</sup>
          </xref>
          <xref ref-type="aff" rid="aff2">
            <sup>2</sup>
          </xref>
          <xref ref-type="aff" rid="aff3">
            <sup>3</sup>
          </xref>
        </contrib>
      </contrib-group>
      <aff id="aff1">
        <label>1</label>
        <institution content-type="orgname">Universidade Federal Fluminense</institution>
        <addr-line>
          <named-content content-type="city">Niter&#243;i</named-content>
          <named-content content-type="state">RJ</named-content>
        </addr-line>
        <country country="BR">Brasil</country>
        <institution content-type="original">Universidade Federal Fluminense, Niter&#243;i, RJ &#8211; Brasil</institution>
      </aff>
      <aff id="aff2">
        <label>2</label>
        <institution content-type="orgname">Hospital Pr&#243;-Card&#237;aco</institution>
        <addr-line>
          <named-content content-type="city">Rio de Janeiro</named-content>
          <named-content content-type="state">RJ</named-content>
        </addr-line>
        <country country="BR">Brasil</country>
        <institution content-type="original">Hospital Pr&#243;-Card&#237;aco, Rio de Janeiro, RJ &#8211; Brasil</institution>
      </aff>
      <aff id="aff3">
        <label>3</label>
        <institution content-type="orgname">Hospital Samaritano Barra da Tijuca</institution>
        <addr-line>
          <named-content content-type="city">Rio de Janeiro</named-content>
          <named-content content-type="state">RJ</named-content>
        </addr-line>
        <country country="BR">Brasil</country>
        <institution content-type="original">Hospital Samaritano Barra da Tijuca, Rio de Janeiro, RJ &#8211; Brasil</institution>
      </aff>
      <author-notes>
        <corresp id="c01"><bold>Correspond&#234;ncia: Cl&#225;udio Tinoco Mesquita</bold> &#8226; Hospital Universit&#225;rio Antonio Pedro, Servi&#231;o de Radiologia, Health, Science &amp; Education Lab &#8211; Av. Prof. Prof. Marques do Paran&#225;, 303. CEP 24033-900, Centro, Niter&#243;i, RJ &#8211; Brasil. E-mail: <email>claudiotinocomesquita@id.uff.br</email> </corresp>
      </author-notes>
      <pub-date date-type="pub" publication-format="electronic">
        <day>17</day>
        <month>04</month>
        <year>2023</year>
      </pub-date>
      <pub-date date-type="collection" publication-format="electronic">
        <year>2023</year>
      </pub-date>
      <volume>120</volume>
      <issue>3</issue>
      <elocation-id>e20230147</elocation-id>
      <permissions>
        <license license-type="open-access" xlink:href="https://creativecommons.org/licenses/by/4.0/" xml:lang="en">
          <license-p> This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. </license-p>
        </license>
      </permissions>
      <kwd-group xml:lang="pt">
        <kwd>COVID-19/tend&#234;ncias</kwd>
        <kwd>Coopera&#231;&#227;o T&#233;cnica</kwd>
        <kwd>Terapias Investigacionais</kwd>
        <kwd>Vacinas/tend&#234;ncias</kwd>
        <kwd>Anticoagulantes</kwd>
      </kwd-group>
      <counts>
        <fig-count count="2"/>
        <table-count count="0"/>
        <equation-count count="0"/>
        <ref-count count="7"/>
      </counts>
    </article-meta>
  </front>
  <body>
    <disp-quote>
      <p>Minieditorial referente ao artigo: Rivaroxabana em Pacientes Ambulatoriais com COVID-19 Leve ou Moderada: Fundamenta&#231;&#227;o e Desenho do Estudo CARE (CARE &#8211; Coalition COVID-19 Brazil VIII)</p>
      <p>&#8220;&#201; a longa hist&#243;ria da humanidade (e da esp&#233;cie animal tamb&#233;m) que aqueles que aprenderam a colaborar e improvisar com mais efic&#225;cia prevaleceram.&#8221;</p>
      <p>
        <bold>Charles Darwin</bold>
      </p>
    </disp-quote>
    <p>A pandemia de COVID-19 em andamento destacou a import&#226;ncia da pesquisa cient&#237;fica colaborativa como nunca antes. Com o mundo enfrentando uma crise de sa&#250;de sem precedentes, ficou claro que a colabora&#231;&#227;o cient&#237;fica e o compartilhamento de conhecimento s&#227;o essenciais para encontrar solu&#231;&#245;es para os desafios impostos pela pandemia. A coopera&#231;&#227;o cient&#237;fica aumentou durante a pandemia, trazendo a capacidade de reunir recursos e conhecimentos de todo o mundo.<sup>1</sup> A ci&#234;ncia cooperativa pode levar a uma compreens&#227;o mais abrangente do v&#237;rus, sua transmiss&#227;o e a doen&#231;a que ele causa. Com o COVID-19, pesquisadores de todo o mundo se uniram para compartilhar dados, colaborar em estudos e desenvolver novas terapias e vacinas.</p>
    <p>A pesquisa cient&#237;fica colaborativa &#233; a chave para acelerar o ritmo da pesquisa. O modelo tradicional de pesquisa cient&#237;fica envolve um processo lento e muitas vezes fragmentado de descoberta, valida&#231;&#227;o e dissemina&#231;&#227;o. No Brasil, um exemplo seminal de colabora&#231;&#227;o &#233; a iniciativa de coaliz&#227;o que re&#250;ne mais de 70 centros em todo o pa&#237;s e conduziu v&#225;rios ensaios cl&#237;nicos randomizados com mais de 5.000 participantes. Um bom exemplo de seus resultados &#233; o estudo da Coaliz&#227;o Covid Brasil III, que demonstrou que a dexametasona melhora pacientes com COVID-19 grave.<sup>2</sup> Esses resultados s&#227;o compar&#225;veis ao hist&#243;rico Recovery Trial, que demonstrou pela primeira vez que em pacientes hospitalizados com Covid-19, a dexametasona resultou em menor mortalidade em 28 dias.<sup>3</sup> Estudos de Coaliz&#227;o tamb&#233;m mostraram que a hidroxicloroquina, com ou sem azitromicina, n&#227;o beneficiou casos leves a moderados<sup>4</sup> ou casos graves de COVID-19.<sup>5</sup></p>
    <p>Embora muito progresso tenha sido feito na compreens&#227;o da fisiopatologia do COVID-19, ainda h&#225; muito a ser aprendido sobre o manejo ideal de pacientes com essa doen&#231;a. Uma das principais complica&#231;&#245;es associadas ao COVID-19 s&#227;o os eventos tromboemb&#243;licos, que podem trazer s&#233;rias consequ&#234;ncias para os pacientes.<sup>6</sup> Nesse contexto, o estudo CARE tem como objetivo investigar os potenciais benef&#237;cios da profilaxia antitromb&#243;tica com rivaroxabana em pacientes ambulatoriais com COVID-19.<sup>7</sup></p>
    <p>A justificativa para este estudo &#233; baseada em evid&#234;ncias anteriores que sugerem que a infec&#231;&#227;o por COVID-19 pode causar danos diretos &#224;s c&#233;lulas endoteliais e levar a um estado pr&#243;-coagulante. Isso pode aumentar o risco de eventos tromboemb&#243;licos em pacientes com COVID-19. Embora as terapias antitromb&#243;ticas tenham sido estudadas em pacientes hospitalizados, o papel da tromboprofilaxia no ambiente ambulatorial ainda n&#227;o est&#225; claro.</p>
    <p>O estudo CARE &#8211; Coaliz&#227;o COVID-19 Brasil VIII &#233; um ensaio cl&#237;nico randomizado controlado que visa avaliar o impacto da rivaroxabana em eventos tromb&#243;ticos venosos ou arteriais, suporte ventilat&#243;rio invasivo e &#243;bito em pacientes ambulatoriais com COVID-19. O estudo inclui pacientes com infec&#231;&#227;o confirmada ou suspeita por SARS-CoV-2 e sintomas leves ou moderados que n&#227;o requerem hospitaliza&#231;&#227;o e apresentam um fator de risco para complica&#231;&#245;es do COVID-19. O desfecho prim&#225;rio composto do estudo compreende tromboembolismo venoso, necessidade de ventila&#231;&#227;o mec&#226;nica invasiva, eventos cardiovasculares agudos importantes e mortalidade em 30 dias a partir da randomiza&#231;&#227;o. O estudo seguir&#225; o princ&#237;pio de inten&#231;&#227;o de tratar e todos os pacientes fornecer&#227;o consentimento informado. Os principais desfechos tromb&#243;ticos e hemorr&#225;gicos, hospitaliza&#231;&#245;es e mortes ser&#227;o julgados centralmente por um comit&#234; de eventos cl&#237;nicos independente, cego para os grupos de tratamento designados.</p>
    <p>No entanto, &#233; importante observar que o estudo est&#225; em andamento e seus resultados ainda n&#227;o foram determinados. O estudo CARE &#233; uma investiga&#231;&#227;o oportuna e relevante que pode ajudar a otimizar o manejo de pacientes com COVID-19. Os resultados do estudo podem fornecer orienta&#231;&#245;es muito necess&#225;rias sobre o uso de profilaxia antitromb&#243;tica em pacientes ambulatoriais com COVID-19 e, em &#250;ltima an&#225;lise, melhorar os resultados dos pacientes</p>
    <p>Em resumo, a iniciativa da Coaliz&#227;o COVID-19 Brasil &#233; extremamente importante na luta contra a pandemia de COVID-19 no Brasil. Ao reunir recursos e expertise, a iniciativa est&#225; acelerando o ritmo da pesquisa, melhorando a equidade e o acesso e salvando vidas (<xref ref-type="fig" rid="f01">Figura 1</xref>). Enquanto o Brasil continua lutando contra a pandemia, a iniciativa Coaliz&#227;o COVID-19 Brazil &#233; um bom exemplo de esfor&#231;os colaborativos para combater o v&#237;rus e proteger a sa&#250;de p&#250;blica. Os resultados do estudo CARE fornecer&#227;o informa&#231;&#245;es valiosas sobre os benef&#237;cios potenciais da tromboprofilaxia em pacientes ambulatoriais com COVID-19. Se o estudo demonstrar uma redu&#231;&#227;o nos eventos tromboemb&#243;licos e outros resultados adversos, poder&#225; ter implica&#231;&#245;es significativas no manejo de pacientes com COVID-19.</p>
    <p>
      <fig id="f01">
        <label>Figura 1</label>
        <caption>
          <title>&#8211; Principais benef&#237;cios da colabora&#231;&#227;o cient&#237;fica.</title>
        </caption>
        <graphic xlink:href="1678-4170-abc-120-03-e20230147-30147-gf01.tif"/></fig>
    </p>
  </body>
  <back>
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  <sub-article article-type="translation" id="TRen" xml:lang="en">
    <front-stub>
      <article-categories>
        <subj-group subj-group-type="heading">
          <subject>Short Editorial</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>Brazilian Initiatives Head Strong Scientific Cooperation to Address COVID-19 Issues: The Case of Coalition COVID-19 Brazil</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <contrib-id contrib-id-type="orcid">0000-0002-1466-9413</contrib-id>
          <name>
            <surname>Mesquita</surname>
            <given-names>Cl&#225;udio Tinoco</given-names>
          </name>
          <xref ref-type="aff" rid="aff1001">
            <sup>1</sup>
          </xref>
          <xref ref-type="aff" rid="aff2001">
            <sup>2</sup>
          </xref>
          <xref ref-type="aff" rid="aff3001">
            <sup>3</sup>
          </xref>
        </contrib>
      </contrib-group>
      <aff id="aff1001">
        <label>1</label>
        <country country="BR">Brazil</country>
        <institution content-type="original">Universidade Federal Fluminense, Niter&#243;i, RJ &#8211; Brazil</institution>
      </aff>
      <aff id="aff2001">
        <label>2</label>
        <country country="BR">Brazil</country>
        <institution content-type="original">Hospital Pr&#243;-Card&#237;aco, Rio de Janeiro, RJ &#8211; Brazil</institution>
      </aff>
      <aff id="aff3001">
        <label>3</label>
        <country country="BR">Brazil</country>
        <institution content-type="original">Hospital Samaritano Barra da Tijuca, Rio de Janeiro, RJ &#8211; Brazil</institution>
      </aff>
      <author-notes>
        <corresp id="c01001"><bold>Mailing Address: Cl&#225;udio Tinoco Mesquita</bold> &#8226; Hospital Universit&#225;rio Antonio Pedro, Servi&#231;o de Radiologia, Health, Science &amp; Education Lab &#8211; Av. Prof. Prof. Marques do Paran&#225;, 303. Postal Code 24033-900, Centro, Niter&#243;i, RJ &#8211; Brazil. E-mail: claudiotinocomesquita@id.uff.br </corresp>
        <fn id="fn1001">
          <p>Short Editorial related to the article: Rivaroxaban in Outpatients with Mild or Moderate COVID-19: Rationale and Design of the Study CARE (CARE &#8211; Coalition COVID-19 Brazil VIII)</p>
        </fn>
      </author-notes>
      <kwd-group xml:lang="en">
        <kwd>COVID-19/trends</kwd>
        <kwd>Technical Cooperation</kwd>
        <kwd>Therapies Investigational</kwd>
        <kwd>Vaccines/trends, Anticoagulants</kwd>
      </kwd-group>
    </front-stub>
    <body>
      <disp-quote>
        <p>&#8220;It is the long history of humankind (and animal kind, too) that those who learned to collaborate and improvise most effectively have prevailed.&#8221;</p>
        <p>
          <bold>Charles Darwin</bold>
        </p>
      </disp-quote>
      <p>The ongoing COVID-19 pandemic has highlighted the importance of collaborative scientific research like never before. With the world facing an unprecedented health crisis, it has become clear that scientific collaboration and knowledge sharing are critical to finding solutions to the challenges posed by the pandemic. Scientific cooperation increased during the pandemic bringing the ability to pool resources and expertise from across the globe.<sup>1</sup> Cooperative science can lead to a more comprehensive understanding of the virus, its transmission, and the disease it causes. With COVID-19, researchers worldwide have collaborated to share data, collaborate on studies, and develop new therapies and vaccines.</p>
      <p>Collaborative scientific research is key to accelerating the pace of research. The traditional model of scientific research involves a slow and often fragmented process of discovery, validation, and dissemination. In Brazil, one seminal example of collaboration is the coalition initiative that congregates more than 70 centers around the country and has led several randomized clinical trials with more than 5000 participants. One good example of their results is the Coalition Covid Brazil III trial that demonstrated that dexamethasone improves patients with severe COVID-19.<sup>2</sup> These results are comparable to the landmark Recovery Trial that demonstrated for the first time that in patients hospitalized with Covid-19, dexamethasone resulted in lower 28-day mortality.<sup>3</sup> Coalition studies also showed that hydroxychloroquine, with or without azithromycin, did not benefit mild-to-moderate<sup>4</sup> or severe COVID-19 cases.<sup>5</sup></p>
      <p>Although much progress has been made in understanding the pathophysiology of COVID-19, there is still much to be learned about the optimal management of patients with this disease. One of the major complications associated with COVID-19 is thromboembolic events, which can have serious consequences for patients.<sup>6</sup> In this context, the CARE study aims to investigate the potential benefits of antithrombotic prophylaxis with rivaroxaban in COVID-19 outpatients.<sup>7</sup></p>
      <p>The rationale for this study is based on previous evidence that suggests that COVID-19 infection can cause direct damage to endothelial cells and lead to a procoagulant state. This may increase the risk of thromboembolic events in patients with COVID-19. While antithrombotic therapies have been studied in hospitalized patients, the role of thromboprophylaxis in the outpatient setting is still unclear.</p>
      <p>The CARE &#8211; Coalition COVID-19 Brazil VIII study is a randomized controlled trial that aims to evaluate the impact of rivaroxaban on venous or arterial thrombotic events, invasive ventilatory support, and death in COVID-19 outpatients. The study includes patients with confirmed or suspected SARS-CoV-2 infection and mild or moderate symptoms who do not require hospitalization and have one risk factor for COVID-19 complications. The primary composite endpoint of the study comprises venous thromboembolism, the need for invasive mechanical ventilation, major acute cardiovascular events, and mortality within 30 days from randomization. The study will follow the intention-to-treat principle, and all patients will provide informed consent. Major thrombotic and bleeding outcomes, hospitalizations, and deaths will be centrally adjudicated by an independent clinical events committee blinded to the assigned treatment groups.</p>
      <p>However, it is important to note that the study is ongoing, and its results are yet to be determined. The CARE study is a timely and relevant investigation that could help to optimize the management of patients with COVID-19. The study&#8217;s results could provide much-needed guidance on the use of antithrombotic prophylaxis in COVID-19 outpatients and ultimately improve patient outcomes</p>
      <p>In summary, the Coalition COVID-19 Brazil initiative is critically important in the fight against the COVID-19 pandemic in Brazil. By pooling resources and expertise, the initiative is accelerating the pace of research, improving equity and access, and saving lives (<xref ref-type="fig" rid="f01001">Figure 1</xref>). As Brazil continues to grapple with the pandemic, the Coalition COVID-19 Brazil initiative is a good example of collaborative efforts to combat the virus and protect public health. The results of the CARE study will provide valuable information on the potential benefits of thromboprophylaxis in outpatients with COVID-19. If the study demonstrates a reduction in thromboembolic events and other adverse outcomes, it could have significant implications for the management of patients with COVID-19.</p>
      <p>
        <fig id="f01001">
          <label>Figure 1</label>
          <caption>
            <title>&#8211; Key benefits of scientific collaboration.</title>
          </caption>
          <graphic xlink:href="1678-4170-abc-120-03-e20230147-30147-gf01-en.tif"/></fig>
      </p>
    </body>
  </sub-article>
</article>
