RESUMO
BACKGROUND: The efficacy and safety of tofacitinib, a Janus kinase inhibitor, in patients who are hospitalized with coronavirus disease 2019 (Covid-19) pneumonia are unclear. METHODS: We randomly assigned, in a 1:1 ratio, hospitalized adults with Covid-19 pneumonia to receive either tofacitinib at a dose of 10 mg or placebo twice daily for up to 14 days or until hospital discharge. The primary outcome was the occurrence of death or respiratory failure through day 28 as assessed with the use of an eight-level ordinal scale (with scores ranging from 1 to 8 and higher scores indicating a worse condition). All-cause mortality and safety were also assessed. RESULTS: A total of 289 patients underwent randomization at 15 sites in Brazil. Overall, 89.3% of the patients received glucocorticoids during hospitalization. The cumulative incidence of death or respiratory failure through day 28 was 18.1% in the tofacitinib group and 29.0% in the placebo group (risk ratio, 0.63; 95% confidence interval [CI], 0.41 to 0.97; P = 0.04). Death from any cause through day 28 occurred in 2.8% of the patients in the tofacitinib group and in 5.5% of those in the placebo group (hazard ratio, 0.49; 95% CI, 0.15 to 1.63). The proportional odds of having a worse score on the eight-level ordinal scale with tofacitinib, as compared with placebo, was 0.60 (95% CI, 0.36 to 1.00) at day 14 and 0.54 (95% CI, 0.27 to 1.06) at day 28. Serious adverse events occurred in 20 patients (14.1%) in the tofacitinib group and in 17 (12.0%) in the placebo group. CONCLUSIONS: Among patients hospitalized with Covid-19 pneumonia, tofacitinib led to a lower risk of death or respiratory failure through day 28 than placebo. (Funded by Pfizer; STOP-COVID ClinicalTrials.gov number, NCT04469114.).
Assuntos
Tratamento Farmacológico da COVID-19 , Glucocorticoides/uso terapêutico , Inibidores de Janus Quinases/uso terapêutico , Piperidinas/uso terapêutico , Pirimidinas/uso terapêutico , Adulto , Idoso , Antivirais/uso terapêutico , Brasil , COVID-19/complicações , COVID-19/mortalidade , COVID-19/terapia , Método Duplo-Cego , Quimioterapia Combinada , Feminino , Hospitalização , Humanos , Incidência , Janus Quinase 3/antagonistas & inibidores , Inibidores de Janus Quinases/efeitos adversos , Masculino , Pessoa de Meia-Idade , Oxigenoterapia , Piperidinas/efeitos adversos , Pirimidinas/efeitos adversos , Insuficiência Respiratória/epidemiologia , Insuficiência Respiratória/etiologiaRESUMO
Therapeutic anticoagulation showed inconsistent results in hospitalized patients with COVID-19 and selection of the best patients to use this strategy still a challenge balancing the risk of thrombotic and hemorrhagic outcomes. The present post-hoc analysis of the ACTION trial evaluated the variables independently associated with both bleeding events (major bleeding or clinically relevant non-major bleeding) and the composite outcomes thrombotic events (venous thromboembolism, myocardial infarction, stroke, systemic embolism, or major adverse limb events). Variables were assessed one by one with independent logistic regressions and final models were chosen based on Akaike information criteria. The model for bleeding events showed an area under the curve of 0.63 (95% confidence interval [CI] 0.53 to 0.73), while the model for thrombotic events had an area under the curve of 0.72 (95% CI 0.65 to 0.79). Non-invasive respiratory support was associated with thrombotic but not bleeding events, while invasive ventilation was associated with both outcomes (Odds Ratio of 7.03 [95 CI% 1.95 to 25.18] for thrombotic and 3.14 [95% CI 1.11 to 8.84] for bleeding events). Beyond respiratory support, creatinine level (Odds Ratio [OR] 1.01 95% CI 1.00 to 1.02 for every 1.0 mg/dL) and history of coronary disease (OR 3.67; 95% CI 1.32 to 10.29) were also independently associated to the risk of thrombotic events. Non-invasive respiratory support, history of coronary disease, and creatinine level may help to identify hospitalized COVID-19 patients at higher risk of thrombotic complications.ClinicalTrials.gov: NCT04394377.
Assuntos
COVID-19 , Produtos de Degradação da Fibrina e do Fibrinogênio , Hemorragia , Trombose , Humanos , COVID-19/sangue , COVID-19/complicações , COVID-19/diagnóstico , Produtos de Degradação da Fibrina e do Fibrinogênio/análise , Produtos de Degradação da Fibrina e do Fibrinogênio/metabolismo , Hemorragia/sangue , Hemorragia/diagnóstico , Hemorragia/etiologia , Hemorragia/induzido quimicamente , Masculino , Feminino , Trombose/sangue , Trombose/etiologia , Trombose/diagnóstico , Idoso , Pessoa de Meia-Idade , Hospitalização , Fatores de Risco , SARS-CoV-2 , Anticoagulantes/uso terapêutico , Anticoagulantes/efeitos adversosRESUMO
BACKGROUND: Hydroxychloroquine and azithromycin have been used to treat patients with coronavirus disease 2019 (Covid-19). However, evidence on the safety and efficacy of these therapies is limited. METHODS: We conducted a multicenter, randomized, open-label, three-group, controlled trial involving hospitalized patients with suspected or confirmed Covid-19 who were receiving either no supplemental oxygen or a maximum of 4 liters per minute of supplemental oxygen. Patients were randomly assigned in a 1:1:1 ratio to receive standard care, standard care plus hydroxychloroquine at a dose of 400 mg twice daily, or standard care plus hydroxychloroquine at a dose of 400 mg twice daily plus azithromycin at a dose of 500 mg once daily for 7 days. The primary outcome was clinical status at 15 days as assessed with the use of a seven-level ordinal scale (with levels ranging from one to seven and higher scores indicating a worse condition) in the modified intention-to-treat population (patients with a confirmed diagnosis of Covid-19). Safety was also assessed. RESULTS: A total of 667 patients underwent randomization; 504 patients had confirmed Covid-19 and were included in the modified intention-to-treat analysis. As compared with standard care, the proportional odds of having a higher score on the seven-point ordinal scale at 15 days was not affected by either hydroxychloroquine alone (odds ratio, 1.21; 95% confidence interval [CI], 0.69 to 2.11; P = 1.00) or hydroxychloroquine plus azithromycin (odds ratio, 0.99; 95% CI, 0.57 to 1.73; P = 1.00). Prolongation of the corrected QT interval and elevation of liver-enzyme levels were more frequent in patients receiving hydroxychloroquine, alone or with azithromycin, than in those who were not receiving either agent. CONCLUSIONS: Among patients hospitalized with mild-to-moderate Covid-19, the use of hydroxychloroquine, alone or with azithromycin, did not improve clinical status at 15 days as compared with standard care. (Funded by the Coalition Covid-19 Brazil and EMS Pharma; ClinicalTrials.gov number, NCT04322123.).
Assuntos
Antivirais/administração & dosagem , Azitromicina/administração & dosagem , Infecções por Coronavirus/tratamento farmacológico , Hidroxicloroquina/administração & dosagem , Pneumonia Viral/tratamento farmacológico , Adulto , Idoso , Idoso de 80 Anos ou mais , Antivirais/uso terapêutico , Azitromicina/uso terapêutico , Betacoronavirus , Brasil , COVID-19 , Quimioterapia Combinada , Feminino , Hospitalização , Humanos , Hidroxicloroquina/uso terapêutico , Masculino , Pessoa de Meia-Idade , Pandemias , Gravidade do Paciente , SARS-CoV-2 , Falha de Tratamento , Tratamento Farmacológico da COVID-19RESUMO
Rationale: The effects of balanced crystalloid versus saline on clinical outcomes for ICU patients may be modified by the type of fluid that patients received for initial resuscitation and by the type of admission. Objectives: To assess whether the results of a randomized controlled trial could be affected by fluid use before enrollment and admission type. Methods: Secondary post hoc analysis of the BaSICS (Balanced Solution in Intensive Care Study) trial, which compared a balanced solution (Plasma-Lyte 148) with 0.9% saline in the ICU. Patients were categorized according to fluid use in the 24 hours before enrollment in four groups (balanced solutions only, 0.9% saline only, a mix of both, and no fluid before enrollment) and according to admission type (planned, unplanned with sepsis, and unplanned without sepsis). The association between 90-day mortality and the randomization group was assessed using a hierarchical logistic Bayesian model. Measurements and Main Results: A total of 10,520 patients were included. There was a low probability that the balanced solution was associated with improved 90-day mortality in the whole trial population (odds ratio [OR], 0.95; 89% credible interval [CrI], 0.66-10.51; probability of benefit, 0.58); however, probability of benefit was high for patients who received only balanced solutions before enrollment (regardless of admission type, OR, 0.78; 89% CrI, 0.56-1.03; probability of benefit, 0.92), mostly because of a benefit in unplanned admissions due to sepsis (OR, 0.70; 89% CrI, 0.50-0.97; probability of benefit, 0.96) and planned admissions (OR, 0.79; 89% CrI, 0.65-0.97; probability of benefit, 0.97). Conclusions: There is a high probability that balanced solution use in the ICU reduces 90-day mortality in patients who exclusively received balanced fluids before trial enrollment. Clinical trial registered with www.clinicaltrials.gov (NCT02875873).
Assuntos
Estado Terminal , Sepse , Adulto , Teorema de Bayes , Estado Terminal/terapia , Soluções Cristaloides/uso terapêutico , Hidratação/métodos , Humanos , Solução SalinaRESUMO
BACKGROUND: COVID-19 is associated with a prothrombotic state leading to adverse clinical outcomes. Whether therapeutic anticoagulation improves outcomes in patients hospitalised with COVID-19 is unknown. We aimed to compare the efficacy and safety of therapeutic versus prophylactic anticoagulation in this population. METHODS: We did a pragmatic, open-label (with blinded adjudication), multicentre, randomised, controlled trial, at 31 sites in Brazil. Patients (aged ≥18 years) hospitalised with COVID-19 and elevated D-dimer concentration, and who had COVID-19 symptoms for up to 14 days before randomisation, were randomly assigned (1:1) to receive either therapeutic or prophylactic anticoagulation. Therapeutic anticoagulation was in-hospital oral rivaroxaban (20 mg or 15 mg daily) for stable patients, or initial subcutaneous enoxaparin (1 mg/kg twice per day) or intravenous unfractionated heparin (to achieve a 0·3-0·7 IU/mL anti-Xa concentration) for clinically unstable patients, followed by rivaroxaban to day 30. Prophylactic anticoagulation was standard in-hospital enoxaparin or unfractionated heparin. The primary efficacy outcome was a hierarchical analysis of time to death, duration of hospitalisation, or duration of supplemental oxygen to day 30, analysed with the win ratio method (a ratio >1 reflects a better outcome in the therapeutic anticoagulation group) in the intention-to-treat population. The primary safety outcome was major or clinically relevant non-major bleeding through 30 days. This study is registered with ClinicalTrials.gov (NCT04394377) and is completed. FINDINGS: From June 24, 2020, to Feb 26, 2021, 3331 patients were screened and 615 were randomly allocated (311 [50%] to the therapeutic anticoagulation group and 304 [50%] to the prophylactic anticoagulation group). 576 (94%) were clinically stable and 39 (6%) clinically unstable. One patient, in the therapeutic group, was lost to follow-up because of withdrawal of consent and was not included in the primary analysis. The primary efficacy outcome was not different between patients assigned therapeutic or prophylactic anticoagulation, with 28â899 (34·8%) wins in the therapeutic group and 34â288 (41·3%) in the prophylactic group (win ratio 0·86 [95% CI 0·59-1·22], p=0·40). Consistent results were seen in clinically stable and clinically unstable patients. The primary safety outcome of major or clinically relevant non-major bleeding occurred in 26 (8%) patients assigned therapeutic anticoagulation and seven (2%) assigned prophylactic anticoagulation (relative risk 3·64 [95% CI 1·61-8·27], p=0·0010). Allergic reaction to the study medication occurred in two (1%) patients in the therapeutic anticoagulation group and three (1%) in the prophylactic anticoagulation group. INTERPRETATION: In patients hospitalised with COVID-19 and elevated D-dimer concentration, in-hospital therapeutic anticoagulation with rivaroxaban or enoxaparin followed by rivaroxaban to day 30 did not improve clinical outcomes and increased bleeding compared with prophylactic anticoagulation. Therefore, use of therapeutic-dose rivaroxaban, and other direct oral anticoagulants, should be avoided in these patients in the absence of an evidence-based indication for oral anticoagulation. FUNDING: Coalition COVID-19 Brazil, Bayer SA.
Assuntos
Anticoagulantes/uso terapêutico , Tratamento Farmacológico da COVID-19 , COVID-19/sangue , Enoxaparina/uso terapêutico , Heparina/uso terapêutico , Rivaroxabana/efeitos adversos , Rivaroxabana/uso terapêutico , Adulto , Idoso , Coagulação Sanguínea/efeitos dos fármacos , Brasil/epidemiologia , Determinação de Ponto Final , Feminino , Produtos de Degradação da Fibrina e do Fibrinogênio , Hemorragia/induzido quimicamente , Hospitalização , Humanos , Masculino , Pessoa de Meia-Idade , Alta do Paciente , SARS-CoV-2 , Resultado do TratamentoRESUMO
BACKGROUND: The efficacy and safety of azithromycin in the treatment of COVID-19 remain uncertain. We assessed whether adding azithromycin to standard of care, which included hydroxychloroquine, would improve clinical outcomes of patients admitted to the hospital with severe COVID-19. METHODS: We did an open-label, randomised clinical trial at 57 centres in Brazil. We enrolled patients admitted to hospital with suspected or confirmed COVID-19 and at least one additional severity criteria as follows: use of oxygen supplementation of more than 4 L/min flow; use of high-flow nasal cannula; use of non-invasive mechanical ventilation; or use of invasive mechanical ventilation. Patients were randomly assigned (1:1) to azithromycin (500 mg via oral, nasogastric, or intravenous administration once daily for 10 days) plus standard of care or to standard of care without macrolides. All patients received hydroxychloroquine (400 mg twice daily for 10 days) because that was part of standard of care treatment in Brazil for patients with severe COVID-19. The primary outcome, assessed by an independent adjudication committee masked to treatment allocation, was clinical status at day 15 after randomisation, assessed by a six-point ordinal scale, with levels ranging from 1 to 6 and higher scores indicating a worse condition (with odds ratio [OR] greater than 1·00 favouring the control group). The primary outcome was assessed in all patients in the intention-to-treat (ITT) population who had severe acute respiratory syndrome coronavirus 2 infection confirmed by molecular or serological testing before randomisation (ie, modified ITT [mITT] population). Safety was assessed in all patients according to which treatment they received, regardless of original group assignment. This trial was registered at ClinicalTrials.gov, NCT04321278. FINDINGS: 447 patients were enrolled from March 28 to May 19, 2020. COVID-19 was confirmed in 397 patients who constituted the mITT population, of whom 214 were assigned to the azithromycin group and 183 to the control group. In the mITT population, the primary endpoint was not significantly different between the azithromycin and control groups (OR 1·36 [95% CI 0·94-1·97], p=0·11). Rates of adverse events, including clinically relevant ventricular arrhythmias, resuscitated cardiac arrest, acute kidney failure, and corrected QT interval prolongation, were not significantly different between groups. INTERPRETATION: In patients with severe COVID-19, adding azithromycin to standard of care treatment (which included hydroxychloroquine) did not improve clinical outcomes. Our findings do not support the routine use of azithromycin in combination with hydroxychloroquine in patients with severe COVID-19. FUNDING: COALITION COVID-19 Brazil and EMS.
Assuntos
Antivirais/uso terapêutico , Azitromicina/uso terapêutico , Infecções por Coronavirus/tratamento farmacológico , Hidroxicloroquina/uso terapêutico , Pneumonia Viral/tratamento farmacológico , Idoso , Antivirais/efeitos adversos , Azitromicina/efeitos adversos , Betacoronavirus , Brasil/epidemiologia , COVID-19 , Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/mortalidade , Quimioterapia Combinada , Feminino , Humanos , Hidroxicloroquina/efeitos adversos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Pandemias , Pneumonia Viral/epidemiologia , Pneumonia Viral/mortalidade , Terapia Respiratória , SARS-CoV-2 , Padrão de Cuidado , Resultado do TratamentoRESUMO
BACKGROUND: Observational studies have suggested a higher risk of thrombotic events in patients with coronavirus disease 2019 (COVID-19). Moreover, elevated D-dimer levels have been identified as an important prognostic marker in COVID-19 directly associated with disease severity and progression. Prophylactic anticoagulation for hospitalized COVID-19 patients might not be enough to prevent thrombotic events; therefore, therapeutic anticoagulation regimens deserve clinical investigation. DESIGN: ACTION is an academic-led, pragmatic, multicenter, open-label, randomized, phase IV clinical trial that aims to enroll around 600 patients at 40 sites participating in the Coalition COVID-19 Brazil initiative. Eligible patients with a confirmed diagnosis of COVID-19 with symptoms up to 14 days and elevated D-dimer levels will be randomized to a strategy of full-dose anticoagulation for 30 days with rivaroxaban 20 mg once daily (or full-dose heparin if oral administration is not feasible) vs standard of care with any approved venous thromboembolism prophylaxis regimen during hospitalization. A confirmation of COVID-19 was mandatory for study entry, based on specific tests used in clinical practice (RT-PCR, antigen test, IgM test) collected before randomization, regardless of in the outpatient setting or not. Randomization will be stratified by clinical stability at presentation. The primary outcome is a hierarchical analysis of mortality, length of hospital stay, or duration of oxygen therapy at the end of 30 days. Secondary outcomes include the World Health Organization's 8-point ordinal scale at 30 days and the following efficacy outcomes: incidence of venous thromboembolism , acute myocardial infarction, stroke, systemic embolism, major adverse limb events, duration of oxygen therapy, disease progression, and biomarkers. The primary safety outcomes are major or clinically relevant non-major bleeding according to the International Society on Thrombosis and Haemostasis criteria. SUMMARY: The ACTION trial will evaluate whether in-hospital therapeutic anticoagulation with rivaroxaban for stable patients, or enoxaparin for unstable patients, followed by rivaroxaban through 30 days compared with standard prophylactic anticoagulation improves clinical outcomes in hospitalized patients with COVID-19 and elevated D-dimer levels.
Assuntos
Anticoagulantes/uso terapêutico , COVID-19/complicações , Enoxaparina/uso terapêutico , Rivaroxabana/uso terapêutico , Trombose/prevenção & controle , Administração Oral , Anticoagulantes/administração & dosagem , Anticoagulantes/efeitos adversos , Brasil , COVID-19/sangue , COVID-19/mortalidade , Esquema de Medicação , Enoxaparina/administração & dosagem , Enoxaparina/efeitos adversos , Produtos de Degradação da Fibrina e do Fibrinogênio/análise , Hemorragia/induzido quimicamente , Hospitalização , Humanos , Oxigenoterapia , Rivaroxabana/administração & dosagem , Rivaroxabana/efeitos adversos , Trombose/etiologia , Fatores de TempoRESUMO
Importance: Slower intravenous fluid infusion rates could reduce the formation of tissue edema and organ dysfunction in critically ill patients; however, there are no data to support different infusion rates during fluid challenges for important outcomes such as mortality. Objective: To determine the effect of a slower infusion rate vs control infusion rate on 90-day survival in patients in the intensive care unit (ICU). Design, Setting, and Participants: Unblinded randomized factorial clinical trial in 75 ICUs in Brazil, involving 11â¯052 patients requiring at least 1 fluid challenge and with 1 risk factor for worse outcomes were randomized from May 29, 2017, to March 2, 2020. Follow-up was concluded on October 29, 2020. Patients were randomized to 2 different infusion rates (reported in this article) and 2 different fluid types (balanced fluids or saline, reported separately). Interventions: Patients were randomized to receive fluid challenges at 2 different infusion rates; 5538 to the slower rate (333 mL/h) and 5514 to the control group (999 mL/h). Patients were also randomized to receive balanced solution or 0.9% saline using a factorial design. Main Outcomes and Measures: The primary end point was 90-day survival. Results: Of all randomized patients, 10â¯520 (95.2%) were analyzed (mean age, 61.1 years [SD, 17.0 years]; 44.2% were women) after excluding duplicates and consent withdrawals. Patients assigned to the slower rate received a mean of 1162 mL on the first day vs 1252 mL for the control group. By day 90, 1406 of 5276 patients (26.6%) in the slower rate group had died vs 1414 of 5244 (27.0%) in the control group (adjusted hazard ratio, 1.03; 95% CI, 0.96-1.11; P = .46). There was no significant interaction between fluid type and infusion rate (P = .98). Conclusions and Relevance: Among patients in the intensive care unit requiring fluid challenges, infusing at a slower rate compared with a faster rate did not reduce 90-day mortality. These findings do not support the use of a slower infusion rate. Trial Registration: ClinicalTrials.gov Identifier: NCT02875873.
Assuntos
Estado Terminal/mortalidade , Estado Terminal/terapia , Hidratação/métodos , Adulto , Idoso , Feminino , Mortalidade Hospitalar , Humanos , Infusões Intravenosas , Unidades de Terapia Intensiva , Masculino , Pessoa de Meia-Idade , Modelos de Riscos ProporcionaisRESUMO
IMPORTANCE: Intravenous fluids are used for almost all intensive care unit (ICU) patients. Clinical and laboratory studies have questioned whether specific fluid types result in improved outcomes, including mortality and acute kidney injury. OBJECTIVE: To determine the effect of a balanced solution vs saline solution (0.9% sodium chloride) on 90-day survival in critically ill patients. DESIGN, SETTING, AND PARTICIPANTS: Double-blind, factorial, randomized clinical trial conducted at 75 ICUs in Brazil. Patients who were admitted to the ICU with at least 1 risk factor for worse outcomes, who required at least 1 fluid expansion, and who were expected to remain in the ICU for more than 24 hours were randomized between May 29, 2017, and March 2, 2020; follow-up concluded on October 29, 2020. Patients were randomized to 2 different fluid types (a balanced solution vs saline solution reported in this article) and 2 different infusion rates (reported separately). INTERVENTIONS: Patients were randomly assigned 1:1 to receive either a balanced solution (n = 5522) or 0.9% saline solution (n = 5530) for all intravenous fluids. MAIN OUTCOMES AND MEASURES: The primary outcome was 90-day survival. RESULTS: Among 11â¯052 patients who were randomized, 10â¯520 (95.2%) were available for the analysis (mean age, 61.1 [SD, 17] years; 44.2% were women). There was no significant interaction between the 2 interventions (fluid type and infusion speed; P = .98). Planned surgical admissions represented 48.4% of all patients. Of all the patients, 60.6% had hypotension or vasopressor use and 44.3% required mechanical ventilation at enrollment. Patients in both groups received a median of 1.5 L of fluid during the first day after enrollment. By day 90, 1381 of 5230 patients (26.4%) assigned to a balanced solution died vs 1439 of 5290 patients (27.2%) assigned to saline solution (adjusted hazard ratio, 0.97 [95% CI, 0.90-1.05]; P = .47). There were no unexpected treatment-related severe adverse events in either group. CONCLUSION AND RELEVANCE: Among critically ill patients requiring fluid challenges, use of a balanced solution compared with 0.9% saline solution did not significantly reduce 90-day mortality. The findings do not support the use of this balanced solution. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT02875873.
Assuntos
Tratamento Farmacológico da COVID-19 , COVID-19 , Inibidores do Fator Xa , Pacientes Ambulatoriais , Pirazóis , Piridonas , Humanos , Piridonas/uso terapêutico , Pirazóis/uso terapêutico , Feminino , Resultado do Tratamento , Masculino , Inibidores do Fator Xa/uso terapêutico , SARS-CoV-2 , Idoso , Pessoa de Meia-IdadeRESUMO
Importance: Effective therapies for patients with coronavirus disease 2019 (COVID-19) are needed, and clinical trial data have demonstrated that low-dose dexamethasone reduced mortality in hospitalized patients with COVID-19 who required respiratory support. Objective: To estimate the association between administration of corticosteroids compared with usual care or placebo and 28-day all-cause mortality. Design, Setting, and Participants: Prospective meta-analysis that pooled data from 7 randomized clinical trials that evaluated the efficacy of corticosteroids in 1703 critically ill patients with COVID-19. The trials were conducted in 12 countries from February 26, 2020, to June 9, 2020, and the date of final follow-up was July 6, 2020. Pooled data were aggregated from the individual trials, overall, and in predefined subgroups. Risk of bias was assessed using the Cochrane Risk of Bias Assessment Tool. Inconsistency among trial results was assessed using the I2 statistic. The primary analysis was an inverse variance-weighted fixed-effect meta-analysis of overall mortality, with the association between the intervention and mortality quantified using odds ratios (ORs). Random-effects meta-analyses also were conducted (with the Paule-Mandel estimate of heterogeneity and the Hartung-Knapp adjustment) and an inverse variance-weighted fixed-effect analysis using risk ratios. Exposures: Patients had been randomized to receive systemic dexamethasone, hydrocortisone, or methylprednisolone (678 patients) or to receive usual care or placebo (1025 patients). Main Outcomes and Measures: The primary outcome measure was all-cause mortality at 28 days after randomization. A secondary outcome was investigator-defined serious adverse events. Results: A total of 1703 patients (median age, 60 years [interquartile range, 52-68 years]; 488 [29%] women) were included in the analysis. Risk of bias was assessed as "low" for 6 of the 7 mortality results and as "some concerns" in 1 trial because of the randomization method. Five trials reported mortality at 28 days, 1 trial at 21 days, and 1 trial at 30 days. There were 222 deaths among the 678 patients randomized to corticosteroids and 425 deaths among the 1025 patients randomized to usual care or placebo (summary OR, 0.66 [95% CI, 0.53-0.82]; P < .001 based on a fixed-effect meta-analysis). There was little inconsistency between the trial results (I2 = 15.6%; P = .31 for heterogeneity) and the summary OR was 0.70 (95% CI, 0.48-1.01; P = .053) based on the random-effects meta-analysis. The fixed-effect summary OR for the association with mortality was 0.64 (95% CI, 0.50-0.82; P < .001) for dexamethasone compared with usual care or placebo (3 trials, 1282 patients, and 527 deaths), the OR was 0.69 (95% CI, 0.43-1.12; P = .13) for hydrocortisone (3 trials, 374 patients, and 94 deaths), and the OR was 0.91 (95% CI, 0.29-2.87; P = .87) for methylprednisolone (1 trial, 47 patients, and 26 deaths). Among the 6 trials that reported serious adverse events, 64 events occurred among 354 patients randomized to corticosteroids and 80 events occurred among 342 patients randomized to usual care or placebo. Conclusions and Relevance: In this prospective meta-analysis of clinical trials of critically ill patients with COVID-19, administration of systemic corticosteroids, compared with usual care or placebo, was associated with lower 28-day all-cause mortality.
Assuntos
Corticosteroides/uso terapêutico , Infecções por Coronavirus/tratamento farmacológico , Glucocorticoides/uso terapêutico , Pneumonia Viral/tratamento farmacológico , Betacoronavirus , COVID-19 , Causas de Morte , Infecções por Coronavirus/mortalidade , Estado Terminal , Dexametasona/uso terapêutico , Humanos , Hidrocortisona/uso terapêutico , Metilprednisolona/uso terapêutico , Pandemias , Pneumonia Viral/mortalidade , Ensaios Clínicos Controlados Aleatórios como Assunto , SARS-CoV-2 , Tratamento Farmacológico da COVID-19RESUMO
Importance: Acute respiratory distress syndrome (ARDS) due to coronavirus disease 2019 (COVID-19) is associated with substantial mortality and use of health care resources. Dexamethasone use might attenuate lung injury in these patients. Objective: To determine whether intravenous dexamethasone increases the number of ventilator-free days among patients with COVID-19-associated ARDS. Design, Setting, and Participants: Multicenter, randomized, open-label, clinical trial conducted in 41 intensive care units (ICUs) in Brazil. Patients with COVID-19 and moderate to severe ARDS, according to the Berlin definition, were enrolled from April 17 to June 23, 2020. Final follow-up was completed on July 21, 2020. The trial was stopped early following publication of a related study before reaching the planned sample size of 350 patients. Interventions: Twenty mg of dexamethasone intravenously daily for 5 days, 10 mg of dexamethasone daily for 5 days or until ICU discharge, plus standard care (n =151) or standard care alone (n = 148). Main Outcomes and Measures: The primary outcome was ventilator-free days during the first 28 days, defined as being alive and free from mechanical ventilation. Secondary outcomes were all-cause mortality at 28 days, clinical status of patients at day 15 using a 6-point ordinal scale (ranging from 1, not hospitalized to 6, death), ICU-free days during the first 28 days, mechanical ventilation duration at 28 days, and Sequential Organ Failure Assessment (SOFA) scores (range, 0-24, with higher scores indicating greater organ dysfunction) at 48 hours, 72 hours, and 7 days. Results: A total of 299 patients (mean [SD] age, 61 [14] years; 37% women) were enrolled and all completed follow-up. Patients randomized to the dexamethasone group had a mean 6.6 ventilator-free days (95% CI, 5.0-8.2) during the first 28 days vs 4.0 ventilator-free days (95% CI, 2.9-5.4) in the standard care group (difference, 2.26; 95% CI, 0.2-4.38; P = .04). At 7 days, patients in the dexamethasone group had a mean SOFA score of 6.1 (95% CI, 5.5-6.7) vs 7.5 (95% CI, 6.9-8.1) in the standard care group (difference, -1.16; 95% CI, -1.94 to -0.38; P = .004). There was no significant difference in the prespecified secondary outcomes of all-cause mortality at 28 days, ICU-free days during the first 28 days, mechanical ventilation duration at 28 days, or the 6-point ordinal scale at 15 days. Thirty-three patients (21.9%) in the dexamethasone group vs 43 (29.1%) in the standard care group experienced secondary infections, 47 (31.1%) vs 42 (28.3%) needed insulin for glucose control, and 5 (3.3%) vs 9 (6.1%) experienced other serious adverse events. Conclusions and Relevance: Among patients with COVID-19 and moderate or severe ARDS, use of intravenous dexamethasone plus standard care compared with standard care alone resulted in a statistically significant increase in the number of ventilator-free days (days alive and free of mechanical ventilation) over 28 days. Trial Registration: ClinicalTrials.gov Identifier: NCT04327401.
Assuntos
Anti-Inflamatórios/uso terapêutico , Infecções por Coronavirus/tratamento farmacológico , Dexametasona/uso terapêutico , Pneumonia Viral/tratamento farmacológico , Respiração Artificial/estatística & dados numéricos , Síndrome do Desconforto Respiratório/tratamento farmacológico , Administração Intravenosa , Idoso , Anti-Inflamatórios/efeitos adversos , Betacoronavirus , Brasil , COVID-19 , Infecções Relacionadas a Cateter/epidemiologia , Infecções por Coronavirus/complicações , Infecções por Coronavirus/mortalidade , Infecções por Coronavirus/terapia , Dexametasona/efeitos adversos , Término Precoce de Ensaios Clínicos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pandemias , Pneumonia Viral/complicações , Pneumonia Viral/mortalidade , Pneumonia Viral/terapia , Síndrome do Desconforto Respiratório/etiologia , SARS-CoV-2 , Tratamento Farmacológico da COVID-19RESUMO
PURPOSE: Fluid use could modulate the effect of balanced solutions (BS) on outcome of intensive care unit (ICU) patients. It is uncertain whether fluid use practices are driven more by patient features or local practices. It is also unclear whether a "dose-response" for the potential benefits of balanced solutions exists. METHODS: The secondary analysis of the Balanced Solution in Intensive Care Study (BaSICS) compared 0.9% saline versus Plasma-Lyte 148® (BS) for fluid therapy in the ICU. The relative contribution of patient features and enrolling site (the random effect) on the volume of fluid used up to day 3 after admission was assessed using different methods, including a Bayesian regression, a frequentist mixed model, and a random forest, all adjusted for relevant patient confounders. Subsequently, a variety of methods were used to assess whether volume of fluid used modulated the effect of BS on 90-day mortality, including a traditional subgroup analysis for patients that remained alive and in the ICU up to 3 days, a Bayesian network accounting for competing risks, and an analysis based on site practices. RESULTS: 10,505 patients were analyzed. Median fluid use in the BS arm and in the 0.9% saline arm were 2500 mL and 2488 mL, respectively. The random effect in the Bayesian regression explained 0.32 (95% credible intervals (CrI) 0.24-0.41) of all model variance (0.33, 95% credible intervals from 0.32-0.35). Frequentist and random forest models produced similar results. In the analysis including only patients alive and in the ICU at 3 days, there was a strong suggestion of interaction between fluid use and the effect of BS, driven mostly by a lower mortality with BS compared to 0.9% saline as fluid use increased for patients with sepsis. These results were consistent in the Bayesian network analysis and in an analysis based on site practices, where septic patients enrolled to BS at high fluid use sites had a lower mortality (absolute risk reduction of - 0.13 [95% credible interval - 0.27 to - 0.01]; 0.98 probability of benefit). CONCLUSION: Baseline patient characteristics collected in the BaSICS trial explain less of the variance of fluid use during the first 3 days than the enrolling site. Volume of fluid used and the effects of BS appear to interact, mostly in the sepsis subgroup where there was a strong association between fluid use after enrollment and the effect of BS on 90-day mortality.
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Solução Salina , Sepse , Humanos , Solução Salina/uso terapêutico , Estado Terminal/terapia , Teorema de Bayes , Cuidados Críticos/métodos , Hidratação/métodos , Sepse/terapia , Unidades de Terapia IntensivaRESUMO
The cardiovascular safety from azithromycin in the treatment of several infectious diseases has been challenged. In this prespecified pooled analysis of 2 multicenter randomized clinical trials, we aimed to assess whether the use of azithromycin might lead to corrected QT (QTc) interval prolongation or clinically relevant ventricular arrhythmias. In the COALITION COVID Brazil I trial, 667 patients admitted with moderate COVID-19 were randomly allocated to hydroxychloroquine, hydroxychloroquine plus azithromycin, or standard of care. In the COALITION COVID Brazil II trial, 447 patients with severe COVID-19 were randomly allocated to hydroxychloroquine alone versus hydroxychloroquine plus azithromycin. The principal end point for the present analysis was the composite of death, resuscitated cardiac arrest, or ventricular arrhythmias. The addition of azithromycin to hydroxychloroquine did not result in any prolongation of the QTc interval (425.8 ± 3.6 ms vs 427.9 ± 3.9 ms, respectively, mean difference -2.1 ms, 95% confidence interval -12.5 to 8.4 ms, p = 0.70). The combination of azithromycin plus hydroxychloroquine compared with hydroxychloroquine alone did not result in increased risk of the primary end point (proportion of patients with events at 15 days 17.2% vs 16.0%, respectively, hazard ratio 1.08, 95% confidence interval 0.78 to 1.49, p = 0.65). In conclusion, in patients hospitalized with COVID-19 already receiving standard-of-care management (including hydroxychloroquine), the addition of azithromycin did not result in the prolongation of the QTc interval or increase in cardiovascular adverse events. Because azithromycin is among the most commonly prescribed antimicrobial agents, our results may inform clinical practice. Clinical Trial Registration: NCT04322123, NCT04321278.
Assuntos
COVID-19 , Síndrome do QT Longo , Humanos , Arritmias Cardíacas/induzido quimicamente , Arritmias Cardíacas/epidemiologia , Arritmias Cardíacas/tratamento farmacológico , Azitromicina/efeitos adversos , Tratamento Farmacológico da COVID-19 , Eletrocardiografia/métodos , Hidroxicloroquina/uso terapêutico , Síndrome do QT Longo/induzido quimicamente , Ensaios Clínicos Controlados Aleatórios como Assunto , SARS-CoV-2RESUMO
PURPOSE: To assess the effect of antisense therapy to block kallikrein-kinin pathway in COVID-19 patients. MATERIAL AND METHODS: Randomized, placebo-controlled, double blind, controlled trial enrolling hospitalized COVID-19 patients that required supplementary oxygen to sustain peripheral oxygen saturation. Key exclusion criteria included use of mechanical ventilation or vasopressors, and patients with more than 10 days since symptom onset or more than 48 h of oxygen use. Patients were randomized to either one subcutaneous dose of ISIS721744, an antisense that blocks prekallikrein, or placebo. The primary outcome was the number of days alive and free of oxygen support up to 15 days (DAFOR15). Secondary endpoints included organ failure score, need and duration of mechanical ventilation up to 15 days, and all-cause mortality at 30 days. Exploratory endpoints included physiological parameters, biomarkers, and quality of life. RESULTS: From October 10, 2020, to December 09, 2020, 111 patients were randomized at thirteen sites in Brazil (56 to treatment and 55 to control group). Average age was 57.5 years, and most patients were male (68.5%). There were no significant differences in DAFOR15 between groups (5.9 ± 5.2 days for the intervention arm and 7.7 ± 5.1 for the control group; mean difference - 0.65, 95% confidence intervals from -2.95 to 1.36, p = 0.520). CONCLUSION: Antisense therapy designed to block the kallikrein-kinin pathway did not demonstrate clinical benefits in increasing days-alive without respiratory support at 15 days in patients with COVID-19 during the first wave in 2020. GOV IDENTIFIER: NCT04549922.
RESUMO
PURPOSE: To assess the physiological and clinical effects of different rates of intravenous fluids for volume expansion of critically ill and perioperative patients. METHODS: We searched PubMed, EMBASE, and Cochrane Central Register of Controlled Trials for studies comparing intravenous infusion rates both in animals and studies involving healthy subjects, critically ill, and perioperative care patients of all ages. RESULTS: Seven animal studies, eleven clinical studies and three studies including healthy volunteers were identified. Slower infusion led to lower mortality in two studies, lower blood loss in one study, better or more sustained expansion of plasma volume and less edema in three studies, but slower restoration of blood pressure in one study. Three healthy volunteer studies suggested more effective plasma expansion with slower infusion, whereas one trial with postoperative patients did not show plasma volume differences between different infusion rates. One randomized trial found increased mortality with faster infusion in septic children, whereas a randomized trial found no significant differences in critically ill adults. CONCLUSIONS: In this scoping review, most studies showed that slower intravenous infusion rates result in a more efficient intravascular expansion, with a longer effect, and less edema than faster rates. Effects on clinical outcomes were inconsistent.
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Estado Terminal , Humanos , Infusões IntravenosasRESUMO
Rationale: Optimal infusion rate for fluid challenges in critically ill patients is unknown. A large clinical trial comparing two different infusion rates yielded neutral results. Conditional average treatment effect (CATE) assessment may aid in tailoring therapy. Objectives: To estimate CATE in patients enrolled in the BaSICS trial and to assess the effects of receiving CATE model-recommended treatment in terms of hospital mortality. Methods: Post hoc analysis of the BaSICS trial assessing the effect of two infusion rates for the fluid challenge (fast, 999 ml/h, control group; vs. slow, 333 ml/h, intervention group) on hospital mortality. CATE was estimated as the difference in outcome for treatment arms in counterfactuals obtained from a Bayesian model trained in the first half of the trial adjusted for predictors hypothesized to interact with the intervention. The model recommended slow or fast infusion or made no recommendation in the second half. A threshold greater than 0.90 probability of benefit was considered. Results: A total of 10,465 patients were analyzed. The model was trained in 5,230 patients and tested in 5,235 patients. A recommendation could be made in the test set in 19% of patients (14% were recommended the control group and 5% the treatment group); for 81% of patients, no recommendation could be made. Slow infusion was more frequently recommended in cases of planned admissions in younger patients; fast infusion was recommended for older patients with sepsis. Slow infusion rate in the subgroup of patients in the test set in which slow infusion was recommended by the model was associated with an odds ratio of 0.58 (95% credible interval of 0.32-0.90; 0.99 posterior probability of benefit) for hospital mortality. Fast infusion in the subgroup in which the model recommended fast infusion was associated with an odds ratio of 0.72 (credible intervals from 0.54 to 0.91; probability of benefit >0.99). Conclusions: Estimation of CATEs from counterfactual probabilities in data from BaSICS provided additional information on trial data. Agreement between treatment recommendation and actual treatment was associated with lower hospital mortality. Clinical trial registered with clinicaltrials.gov (NCT02875873).
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Cuidados Críticos , Estado Terminal , Humanos , Teorema de Bayes , Estado Terminal/terapia , Hidratação/efeitos adversos , Hidratação/métodos , Projetos de PesquisaRESUMO
BACKGROUND: Previous studies have demonstrated a high risk of arterial and venous thromboembolic events as a consequence of direct viral damage to endothelial cells by SARS-CoV-2 and a procoagulant milieu due to increased biomarkers, such as D-dimer, fibrinogen, and factor VIII. Although randomized controlled trials of antithrombotic therapies have been conducted in hospitalized patients, few have evaluated the role of thromboprophylaxis in an outpatient setting. OBJECTIVE: To assess whether antithrombotic prophylaxis with rivaroxaban reduces the risk of venous or arterial thrombotic events, invasive ventilatory support, and death in COVID-19 outpatients. METHODS: The COVID Antithrombotic Rivaroxaban Evaluation (CARE) study, a multicenter, randomized, open-label, controlled trial of rivaroxaban 10 mg once daily for 14 days or local standard treatment alone to prevent adverse outcomes, is registered in clinicaltrials.gov (NCT04757857). The inclusion criteria are adults with confirmed or suspected SARS-CoV-2 infection and mild or moderate symptoms without indication for hospitalization, within 7 days of symptom onset, and 1 risk factor for COVID-19 complication (> 65 years, hypertension, diabetes mellitus, asthma, chronic obstructive pulmonary disease or other chronic lung diseases, smoking, immunosuppression, or obesity). The primary composite endpoint, which includes venous thromboembolism, invasive mechanical ventilation, major acute cardiovascular events, and mortality within 30 days of randomization, will be assessed according to the intention-to-treat principle. All patients will provide informed consent. A significance level of 5% will be used for all statistical tests. RESULTS: Major thrombotic and bleeding outcomes, hospitalizations, and deaths will be centrally adjudicated by an independent clinical events committee blinded to the assigned treatment groups. CONCLUSION: The CARE study will provide relevant and contemporary information about the potential role of thromboprophylaxis in outpatients with COVID-19.
FUNDAMENTO: Estudos anteriores revelaram alto risco de eventos tromboembólicos arteriais e venosos como consequência de danos virais diretos do SARS-CoV-2 em células endoteliais e um meio procoagulante devido ao aumento de biomarcadores como o D-dímero, fibrinogênio, fator VIII. Foram realizados ensaios controlados randomizados de terapias antitrombóticas em pacientes internados, no entanto, poucos estudos avaliaram o papel da tromboprofilaxia no ambiente ambulatorial. OBJETIVO: Avaliar se a profilaxia antitrombótica com rivaroxabana reduz o risco de eventos trombóticos venosos ou arteriais, suporte ventilatório invasivo e morte em pacientes ambulatoriais com COVID-19. MÉTODOS: O estudo CARE é um ensaio randomizado, aberto, multicêntrico e controlado por rivaroxabana 10 mg uma vez por dia durante 14 dias ou tratamento local padrão isolado, para a prevenção de resultados adversos, registrado no Clinicaltrials.gov (NCT04757857). Os critérios de inclusão são adultos com infecção confirmada ou suspeita do SARS-CoV-2, com sintomas leves ou moderados, sem indicação de hospitalização, no prazo de 7 dias após o início dos sintomas e um fator de risco de complicação da COVID-19 (>65 anos, hipertensão, diabetes, asma, doença pulmonar obstrutiva crônica ou outras doenças pulmonares crônicas, tabagismo, imunossupressão ou obesidade). O desfecho primário composto inclui tromboembolismo venoso, necessidade de ventilação mecânica invasiva, eventos cardiovasculares agudos maiores e mortalidade no prazo de 30 dias após a randomização, sendo avaliado segundo o princípio da intenção de tratar. Todos os pacientes assinaram termo de consentimento. Foi estabelecido um nível de significância de 5% para todos os testes estatísticos. RESULTADOS: Os principais desfechos trombóticos e hemorrágicos, hospitalizações e mortes serão avaliados centralmente por um comitê de eventos clínicos independente, sob a condição cega para a alocação dos grupos de tratamento. CONCLUSÃO: O estudo CARE fornecerá informação relevante e contemporânea sobre o possível papel da tromboprofilaxia em pacientes ambulatoriais com COVID-19.
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COVID-19 , Trombose , Tromboembolia Venosa , Adulto , Humanos , SARS-CoV-2 , Rivaroxabana , Pacientes Ambulatoriais , Anticoagulantes , Brasil , Células Endoteliais , Fibrinolíticos , Resultado do Tratamento , Ensaios Clínicos Controlados Aleatórios como AssuntoRESUMO
INTRODUCTION: Certain criteria for ventilator-associated events (VAE) definition might influence the type of an event, its detection rate and consequently the resource expenditure in intensive care unit. The Impact of Infections by Antimicrobial-Resistant Microorganisms - Ventilator-Associated Pneumonia (IMPACTO MR-PAV) aims to evaluate the incidence and diagnostic accuracy of ventilator-associated pneumonia (VAP) using the current criteria for VAP surveillance in Brazil versus the VAE criteria defined by the US National Healthcare Safety Network-Center for Diseases Control and Prevention (CDC) criteria. METHODS AND ANALYSIS: The study will be conducted in around 15 centres across Brazil from October 2022 to December 2023. Trained healthcare professionals will collect data and compare the incidence of VAP using both the current criteria for VAP surveillance in Brazil and the VAE criteria defined by the CDC. The accuracy of the two criteria for identifying VAP will also be analysed. It will also characterise other events associated with mechanical ventilation (ventilator-associated condition, infection-related ventilator-associated complication) and adjudicate VAP reported to the Brazilian Health Regulatory Agency (ANVISA) using current epidemiological diagnostic criteria. ETHICS AND DISSEMINATION: This study was approved by the Institutional Review Board under the number 52354721.0.1001.0070. The study's primary outcome measure will be the incidence of VAP using the two different surveillance criteria, and the secondary outcome measures will be the accuracy of the two criteria for identifying VAP and the adjudication of VAP reported to ANVISA. The results will contribute to the improvement of VAP surveillance in Brazil and may have implications for other countries that use similar criteria. TRIAL REGISTRATION NUMBER: NCT05589727; Clinicaltrials.gov.
Assuntos
Pneumonia Associada à Ventilação Mecânica , Humanos , Pneumonia Associada à Ventilação Mecânica/diagnóstico , Pneumonia Associada à Ventilação Mecânica/epidemiologia , Pneumonia Associada à Ventilação Mecânica/prevenção & controle , Brasil/epidemiologia , Estudos de Coortes , Respiração Artificial/efeitos adversos , Ventiladores Mecânicos , Unidades de Terapia IntensivaRESUMO
Background: Repurposed drugs for treatment of new onset disease may be an effective therapeutic shortcut. We aimed to evaluate the efficacy of repurposed antivirals compared to placebo in lowering SARS-CoV2 viral load of COVID-19 patients. Methods: REVOLUTIOn is a randomised, parallel, blinded, multistage, superiority and placebo controlled randomised trial conducted in 35 centres in Brazil. We include patients aged 18 years or older admitted to hospital with laboratory-confirmed SARS-CoV-2 infection, symptoms onset 9 days or less and SpO2 94% or lower at room air were eligible. All participants were randomly allocated to receive either atazanavir, daclatasvir or sofosbuvir/daclatasvir or placebo for 10 days. The primary outcome was the decay rate (slope) of the SARS-CoV-2 viral load logarithm assessed in the modified intention to-treat population. This trial was registered with ClinicalTrials.gov, number NCT04468087. Findings: Between February 09, 2021, and August 04, 2021, 255 participants were enrolled and randomly assigned to atazanavir (n = 64), daclatasvir (n = 66), sofosbuvir/daclatasvir (n = 67) or placebo (n = 58). Compared to placebo group, the change from baseline to day 10 in log viral load was not significantly different for any of the treatment groups (0.05 [95% CI, -0.03 to 0.12], -0.02 [95% CI, -0.09 to 0.06], and -0.03 [95% CI, -0.11 to 0.04] for atazanavir, daclatasvir and sofosbuvir/daclatasvir groups respectively). There was no significant difference in the occurrence of serious adverse events between treatment groups. Interpretation: No significant reduction in viral load was observed from the use of atazanavir, daclatasvir or sofosbuvir/daclatasvir compared to placebo in hospitalised COVID-19 patients who need oxygen support with symptoms onset 9 days or less. Funding: Ministério da Ciência, Tecnologia e Inovação (MCTI) - Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPQ); Cia Latino-Americana de Medicamentos (Clamed); Cia Industrial H. Carlos Schneider (Ciser); Hospital Research Foundation Incorporation, Australia, HCor São Paulo; Blanver Farmoquímica; Instituto de Tecnologia em Fármacos (Farmanguinhos) da Fundação Oswaldo Cruz (Fiocruz); Coordenação Geral de Planejamento Estratégico (Cogeplan)/Fiocruz; and Fundação de apoio a Fiocruz (Fiotec, VPGDI-054-FIO-20-2-13).