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1.
Nat Metab ; 4(12): 1847-1857, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36344766

RESUMO

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) cytotoxicity may involve inhibition of peroxisome proliferator-activated receptor alpha. Fenofibrate activates peroxisome proliferator-activated receptor alpha and inhibits SARS-CoV-2 replication in vitro. Whether fenofibrate can be used to treat coronavirus disease 2019 (COVID-19) infection in humans remains unknown. Here, we randomly assigned inpatients and outpatients with COVID-19 within 14 d of symptom onset to 145 mg of oral fenofibrate nanocrystal formulation versus placebo for 10 d, in a double-blinded fashion. The primary endpoint was a severity score whereby participants were ranked across hierarchical tiers incorporating time to death, mechanical ventilation duration, oxygenation, hospitalization and symptom severity and duration. In total, 701 participants were randomized to fenofibrate (n = 351) or placebo (n = 350). The mean age of participants was 49 ± 16 years, 330 (47%) were female, mean body mass index was 28 ± 6 kg/m2 and 102 (15%) had diabetes. Death occurred in 41 participants. Compared with placebo, fenofibrate had no effect on the primary endpoint. The median (interquartile range) rank in the placebo arm was 347 (172, 453) versus 345 (175, 453) in the fenofibrate arm (P = 0.819). There was no difference in secondary and exploratory endpoints, including all-cause death, across arms. There were 61 (17%) adverse events in the placebo arm compared with 46 (13%) in the fenofibrate arm, with slightly higher incidence of gastrointestinal side effects in the fenofibrate group. Overall, among patients with COVID-19, fenofibrate has no significant effect on various clinically relevant outcomes ( NCT04517396 ).


Assuntos
COVID-19 , Fenofibrato , Humanos , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Masculino , SARS-CoV-2 , Fenofibrato/uso terapêutico , Metabolismo dos Lipídeos , PPAR alfa
2.
Res Sq ; 2022 Aug 10.
Artigo em Inglês | MEDLINE | ID: mdl-35982675

RESUMO

Background Abnormal cellular lipid metabolism appears to underlie SARS-CoV-2 cytotoxicity and may involve inhibition of peroxisome proliferator activated receptor alpha (PPARα). Fenofibrate, a PPAR-α activator, modulates cellular lipid metabolism. Fenofibric acid has also been shown to affect the dimerization of angiotensin-converting enzyme 2, the cellular receptor for SARS-CoV-2. Fenofibrate and fenofibric acid have been shown to inhibit SARS-CoV-2 replication in cell culture systems in vitro . Methods We randomly assigned 701 participants with COVID-19 within 14 days of symptom onset to 145 mg of fenofibrate (nanocrystal formulation with dose adjustment for renal function or dose-equivalent preparations of micronized fenofibrate or fenofibric acid) vs. placebo for 10 days, in a double-blinded fashion. The primary endpoint was a ranked severity score in which participants were ranked across hierarchical tiers incorporating time to death, duration of mechanical ventilation, oxygenation parameters, subsequent hospitalizations and symptom severity and duration. ClinicalTrials.gov registration: NCT04517396. Findings: Mean age of participants was 49 ± 16 years, 330 (47%) were female, mean BMI was 28 ± 6 kg/m 2 , and 102 (15%) had diabetes mellitus. A total of 41 deaths occurred. Compared with placebo, fenofibrate administration had no effect on the primary endpoint. The median (interquartile range [IQR]) rank in the placebo arm was 347 (172, 453) vs. 345 (175, 453) in the fenofibrate arm (P = 0.819). There was no difference in various secondary and exploratory endpoints, including all-cause death, across randomization arms. These results were highly consistent across pre-specified sensitivity and subgroup analyses. Conclusion Among patients with COVID-19, fenofibrate has no significant effect on various clinically relevant outcomes.

3.
Lancet Respir Med ; 9(3): 275-284, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33422263

RESUMO

BACKGROUND: Biological considerations suggest that renin-angiotensin system inhibitors might influence the severity of COVID-19. We aimed to evaluate whether continuing versus discontinuing renin-angiotensin system inhibitors (angiotensin-converting enzyme inhibitors or angiotensin receptor blockers) affects outcomes in patients admitted to hospital with COVID-19. METHODS: The REPLACE COVID trial was a prospective, randomised, open-label trial done at 20 large referral hospitals in seven countries worldwide. Eligible participants were aged 18 years and older who were admitted to hospital with COVID-19 and were receiving a renin-angiotensin system inhibitor before admission. Individuals with contraindications to continuation or discontinuation of renin-angiotensin system inhibitor therapy were excluded. Participants were randomly assigned (1:1) to continuation or discontinuation of their renin-angiotensin system inhibitor using permuted block randomisation, with allocation concealed using a secure web-based randomisation system. The primary outcome was a global rank score in which participants were ranked across four hierarchical tiers incorporating time to death, duration of mechanical ventilation, time on renal replacement or vasopressor therapy, and multiorgan dysfunction during the hospitalisation. Primary analyses were done in the intention-to-treat population. The REPLACE COVID trial is registered with ClinicalTrials.gov, NCT04338009. FINDINGS: Between March 31 and Aug 20, 2020, 152 participants were enrolled and randomly assigned to either continue or discontinue renin-angiotensin system inhibitor therapy (continuation group n=75; discontinuation group n=77). Mean age of participants was 62 years (SD 12), 68 (45%) were female, mean body-mass index was 33 kg/m2 (SD 8), and 79 (52%) had diabetes. Compared with discontinuation of renin-angiotensin system inhibitors, continuation had no effect on the global rank score (median rank 73 [IQR 40-110] for continuation vs 81 [38-117] for discontinuation; ß-coefficient 8 [95% CI -13 to 29]). There were 16 (21%) of 75 participants in the continuation arm versus 14 (18%) of 77 in the discontinuation arm who required intensive care unit admission or invasive mechanical ventilation, and 11 (15%) of 75 participants in the continuation group versus ten (13%) of 77 in the discontinuation group died. 29 (39%) participants in the continuation group and 28 (36%) participants in the discontinuation group had at least one adverse event (χ2 test of adverse events between treatment groups p=0·77). There was no difference in blood pressure, serum potassium, or creatinine during follow-up across the two groups. INTERPRETATION: Consistent with international society recommendations, renin-angiotensin system inhibitors can be safely continued in patients admitted to hospital with COVID-19. FUNDING: REPLACE COVID Investigators, REPLACE COVID Trial Social Fundraising Campaign, and FastGrants.


Assuntos
Antagonistas de Receptores de Angiotensina/uso terapêutico , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , COVID-19/terapia , Doenças Cardiovasculares/tratamento farmacológico , Suspensão de Tratamento/estatística & dados numéricos , Idoso , COVID-19/complicações , COVID-19/mortalidade , Doenças Cardiovasculares/mortalidade , Doenças Cardiovasculares/virologia , Feminino , Hospitalização/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Respiração Artificial/estatística & dados numéricos , SARS-CoV-2 , Resultado do Tratamento
4.
J Clin Hypertens (Greenwich) ; 22(10): 1780-1788, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32937008

RESUMO

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus responsible for coronavirus disease 2019 (COVID-19), is associated with high incidence of multiorgan dysfunction and death. Angiotensin-converting enzyme 2 (ACE2), which facilitates SARS-CoV-2 host cell entry, may be impacted by angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin receptor blockers (ARBs), two commonly used antihypertensive classes. In a multicenter, international randomized controlled trial that began enrollment on March 31, 2020, participants are randomized to continuation vs withdrawal of their long-term outpatient ACEI or ARB upon hospitalization with COVID-19. The primary outcome is a hierarchical global rank score incorporating time to death, duration of mechanical ventilation, duration of renal replacement or vasopressor therapy, and multiorgan dysfunction severity. Approval for the study has been obtained from the Institutional Review Board of each participating institution, and all participants will provide informed consent. A data safety monitoring board has been assembled to provide independent oversight of the project.


Assuntos
Antagonistas de Receptores de Angiotensina/farmacologia , Inibidores da Enzima Conversora de Angiotensina/farmacologia , COVID-19/complicações , Insuficiência de Múltiplos Órgãos/epidemiologia , SARS-CoV-2/efeitos dos fármacos , Adulto , Antagonistas de Receptores de Angiotensina/efeitos adversos , Inibidores da Enzima Conversora de Angiotensina/efeitos adversos , COVID-19/epidemiologia , COVID-19/virologia , Estudos de Casos e Controles , Feminino , Hospitalização/estatística & dados numéricos , Humanos , Incidência , Masculino , Insuficiência de Múltiplos Órgãos/mortalidade , Estudos Prospectivos , Terapia de Substituição Renal/estatística & dados numéricos , Respiração Artificial/estatística & dados numéricos , SARS-CoV-2/genética , Índice de Gravidade de Doença , Vasoconstritores/uso terapêutico , Suspensão de Tratamento/estatística & dados numéricos
5.
Lima; s.n; 2009. 13 p. tab.
Tese em Espanhol | LILACS, LIPECS | ID: lil-667211

RESUMO

Es importante conocer si las indicaciones de las transfusiones sanguíneas y derivados son justificadas, ya que se trata de un acto médico, y como tal, cada indicación a transfundir debe sustentarse en estudios necesarios y criterios objetivos que demuestren que el paciente transfundido obtendrá un real beneficio sobre la patología a tratar. Se realizó un estudio transversal prospectivo en el que se incluyeron pacientes entre 2 meses y 18 años de edad hospitalizados en el Instituto de Salud del Niño, durante el periodo de septiembre a noviembre del 2009, con él objetivo de evaluar las indicaciones de transfusión de sangre y derivados, según la Guía de Transfusiones Sanguíneas de la Organización Mundial de la Salud, y verificar la indicación de la transfusión, y la justificación según los datos clínicos y de laboratorio. Se evaluaron 300 indicaciones de transfusiones sanguíneas y derivados, identificándose que el 58,2 por ciento de indicaciones fueron adecuadas según la Guía de Transfusiones Sanguíneas de la OMS, y un 41,8 por ciento fueron indicaciones inadecuadas. De la muestra total, se identifico que la indicación de transfusión, más frecuente, fueron los trastornos hemorrágicos y de la coagulación (31,1 por ciento), y el producto sanguíneo transfundido con mayor frecuencia fue el Paquete Globular (52,7 por ciento), este mismo, a su vez, fue el elemento con mayor porcentaje de indicación inadecuada de transfusión (66 por ciento). Con este estudio se pudo concluir que la mayoría de las indicaciones para transfundir sangre y sus derivados son adecuadas según la Guía De Transfusiones Sanguíneas de la OMS, sin embargo, existe un alto porcentaje (41.8 por ciento) de pacientes transfundidos con inadecuada indicación. Los trastornos hemorrágicos y de la coagulación es la indicación más frecuente de transfusión y el producto sanguíneo más transfundido es el Paquete Globular, el mismo que es indicado inadecuadamente en mayor porcentaje...


Assuntos
Humanos , Masculino , Feminino , Lactente , Pré-Escolar , Criança , Adolescente , Pediatria , Transfusão de Sangue , Estudos Prospectivos , Estudos Transversais
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