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1.
Oxid Med Cell Longev ; 2022: 9199190, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35154575

RESUMO

Silymarin is proclaimed to be a blend of flavonolignans or phytochemicals. An era of new generation of direct-acting antivirals (DAAs) has commenced to have facet effect in swaying of the hepatitis C virus (HCV). Nonetheless, this therapy has serious side effects that jeopardize its efficacy. This study is aimed at probing the effects of ribavirin (RBV) and sofosbuvir (SOF) along with silymarin as an adjunct therapy on hematological parameters and markers of obscured oxidative stress. The effect of DAAs along with silymarin was also examined on variable sex hormone level and liver function markers such as alanine aminotransferase (ALT), aspartate transaminase (AST), alkaline phosphatase (ALP), and bilirubin. The study was followed to determine viral load and viral genotypes. A total of 30 patients were randomly divided into two equal groups comprising the control group (n = 15) and treatment group (n = 15). The control group was solely administered with DAAs (SOF and RBV; 400 mg/800 mg each/day). Conversely, the treatment group was dispensed with DAAs, but with adjunct therapy of silymarin (400 mg/day) along with DAAs (400/800 mg/day) over period of 8 weeks. Sampling of blood was performed at pre- and posttreatment levels for the evaluation of different propound parameters. Our data showed that silymarin adjunct therapy enhances the efficiency of DAAs. A decrease in menace level of liver markers such as ALT, ALP, AST, and bilirubin was observed (p > 0.05). The adjunct therapy concurrently also demonstrated an ameliorative effect on hematological indices and oxidative markers, for instance, SOD, TAS, GSH, GSSG, and MDA (p < 0.05), diminishing latent viral load. The silymarin administration was also found to revamp the fluster level of sex hormones. Our outcomes provide evidence that systematic administration of silymarin effectively remits deviant levels of hematological, serological, hormonal, and antioxidant markers. This demonstrates a possibly unique role of silymarin in mitigating hepatitis C.


Assuntos
Antioxidantes/administração & dosagem , Antivirais/administração & dosagem , Hepacivirus/genética , Hepatite C Crônica/tratamento farmacológico , Compostos Fitoquímicos/administração & dosagem , Fitoterapia/métodos , Ribavirina/administração & dosagem , Silimarina/administração & dosagem , Sofosbuvir/administração & dosagem , Adolescente , Adulto , Estudos de Casos e Controles , Quimioterapia Combinada/métodos , Feminino , Genótipo , Hepatite C Crônica/metabolismo , Hepatite C Crônica/virologia , Humanos , Masculino , Pessoa de Meia-Idade , Estresse Oxidativo/efeitos dos fármacos , Resultado do Tratamento , Carga Viral , Adulto Jovem
2.
Sci Rep ; 12(1): 193, 2022 01 07.
Artigo em Inglês | MEDLINE | ID: mdl-34996920

RESUMO

We prospectively investigated the changes of liver stiffness (LS) and the occurrence of hepatocellular carcinoma (HCC) after hepatitis C virus (HCV) eradication using direct antiviral agents (DAA) over three years. LS measurement using transient elastography and serum fibrosis surrogate markers before treatment and at 48, 96, 144 weeks after starting direct-acting antivirals (DAA) according to the protocol were evaluated. Patients were also compared with historical cohort treated with pegylated interferon (peg-IFN). Sustained viral response (SVR) was observed in 95.8%. LS value in the patients achieving SVR significantly decreased over time (19.4 ± 12.9 kPa [baseline], 13.9 ± 9.1 kPa [48 weeks], 11.7 ± 8.2 kPa [96 weeks], 10.09 ± 6.23 [144 weeks], all p < 0.001). With matched analysis, the decrease in LS value was significantly larger in DAA group than peg-IFN group at both 48 weeks (29% vs. 9%) and 96 weeks (39% vs. 17%). The incidence of HCC was not significantly different between DAA and peg-IFN groups (5.5% vs. 5.4%) at 144 weeks. HCV eradication with DAA can lead to improvement of liver stiffness over time. The regression of fibrosis was greater in the group with DAA than peg-IFN.Clinical trials registration: ClinicalTrials.gov (NCT02865369).


Assuntos
Antivirais/administração & dosagem , Carcinoma Hepatocelular/prevenção & controle , Hepatite C Crônica/tratamento farmacológico , Cirrose Hepática/tratamento farmacológico , Neoplasias Hepáticas/prevenção & controle , Administração Oral , Idoso , Antivirais/efeitos adversos , Carbamatos/administração & dosagem , Carcinoma Hepatocelular/diagnóstico , Carcinoma Hepatocelular/epidemiologia , Carcinoma Hepatocelular/virologia , Quimioterapia Combinada , Técnicas de Imagem por Elasticidade , Feminino , Hepatite C Crônica/diagnóstico , Hepatite C Crônica/epidemiologia , Hepatite C Crônica/virologia , Humanos , Imidazóis/administração & dosagem , Incidência , Interferons/administração & dosagem , Isoquinolinas/administração & dosagem , Cirrose Hepática/diagnóstico por imagem , Cirrose Hepática/epidemiologia , Cirrose Hepática/virologia , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/epidemiologia , Neoplasias Hepáticas/virologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Pirrolidinas/administração & dosagem , Estudos Retrospectivos , Ribavirina/administração & dosagem , Seul , Sulfonamidas/administração & dosagem , Resposta Viral Sustentada , Fatores de Tempo , Resultado do Tratamento , Valina/administração & dosagem , Valina/análogos & derivados
3.
CPT Pharmacometrics Syst Pharmacol ; 10(8): 826-838, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34296543

RESUMO

This work explores the application of a physiologically structured population (PSP) framework in modeling hepatitis C virus (HCV) kinetics. To do so, a model was developed for the viral RNA load in plasma and liver as observed in 15 patients treated with a combination therapy of pegylated interferon, ribavirin, and telaprevir. By including both intracellular and extracellular processes of the HCV lifecycle, the model provided a description of the treatment effect on the intracellular HCV lifecycle. Combining PSP models with a nonlinear mixed effects approach in a single model permits a natural inclusion of the direct-acting antiviral effect on intracellular processes, which can then be integrated with the viral kinetics within the host while accounting for the interindividual variability between patients. This should allow an exploration of the treatment effect within the entire chronic HCV-infected population.


Assuntos
Antivirais/administração & dosagem , Hepacivirus/isolamento & purificação , Hepatite C Crônica/tratamento farmacológico , Modelos Teóricos , Quimioterapia Combinada , Hepatite C Crônica/virologia , Humanos , Interferons/administração & dosagem , Dinâmica não Linear , Oligopeptídeos/administração & dosagem , Polietilenoglicóis/química , RNA Viral/sangue , Ribavirina/administração & dosagem , Resultado do Tratamento , Carga Viral
4.
J Neuroimmunol ; 358: 577656, 2021 09 15.
Artigo em Inglês | MEDLINE | ID: mdl-34304142

RESUMO

Subacute sclerosing panencephalitis (SSPE) is a slow virus infection associated with mutant measles virus (MeV). The long-term outcome of antiviral treatments remains to be determined. We herein present a Japanese boy who was diagnosed with SSPE at 10 years of age. Intraventricular infusions of interferon-α effectively prevented the progress of symptoms during 14 years of follow-up period. Flow-cytometric analysis demonstrated higher proportion of T helper 17 cells (Th17, 18.2%) than healthy controls (4.8-14.5%) despite the normal subpopulation of peripheral lymphocytes. These data suggest that a group of patients with SSPE may show favorable responses to intraventricular infusions of interferon-α.


Assuntos
Antivirais/administração & dosagem , Interferon-alfa/administração & dosagem , Ribavirina/administração & dosagem , Panencefalite Esclerosante Subaguda/diagnóstico por imagem , Panencefalite Esclerosante Subaguda/tratamento farmacológico , Quimioterapia Combinada , Humanos , Lactente , Masculino , Sarampo/complicações , Sarampo/diagnóstico por imagem , Sarampo/tratamento farmacológico , Vírus do Sarampo/isolamento & purificação , Indução de Remissão , Panencefalite Esclerosante Subaguda/etiologia , Resultado do Tratamento , Adulto Jovem
5.
Hepatology ; 74(6): 2952-2964, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34255381

RESUMO

BACKGROUND AND AIMS: Multiple direct-acting antiviral (DAA) regimens are available to treat HCV genotype 1 infection. However, comparative effectiveness from randomized controlled trials of DAA regimens is unavailable. APPROACH AND RESULTS: We conducted a pragmatic randomized controlled trial (NCT02786537) to compare the effectiveness of DAAs for HCV genotype 1a or 1b on viral response, safety, tolerability, and medication nonadherence. Adults with compensated liver disease, HCV genotype 1, not pregnant or breastfeeding, and with health insurance likely to cover ledipasvir/sofosbuvir (LDV/SOF) were recruited from 34 US viral hepatitis clinics. Participants were randomized (± ribavirin) to LDV/SOF, elbasvir/grazoprevir (EBR/GZR), and paritaprevir/ritonavir/ombitasvir+dasabuvir (PrOD; treatment arm stopped early). Primary outcomes included sustained viral response at 12 weeks (SVR12), clinician-recorded adverse events, patient-reported symptoms, and medication nonadherence. Between June 2016 and March 2018, 1,609 participants were randomized. Among 1,128 participants who received ≥1 dose of EBR/GZR or LDV/SOF (± ribavirin), SVR12 was 95.2% (95% CI, 92.8%-97.6%) and 97.4% (95% CI, 95.5%-99.2%), respectively, with a difference estimate of 2.2% (-0.5% to 4.7%), falling within the "equivalence" interval (-5% to 5%). While most (56%) participants experienced adverse events, few were serious (4.2%) or severe (1.8%). In the absence of ribavirin, discontinuations due to adverse events were rare. Patient-reported symptoms and medication nonadherence were similar. Study limitations were dropout due to insurance denial and loss to follow-up after treatment, limiting the ability to measure SVR12. CONCLUSIONS: This pragmatic trial demonstrated high SVR12 for participants treated with EBR/GZR and LDV/SOF with few adverse effects. Overall, the two regimens were equivalent in effectiveness. The results support current HCV guidelines that do not distinguish between ribavirin-free EBR/GZR and LDV/SOF.


Assuntos
Antivirais/administração & dosagem , Hepacivirus/isolamento & purificação , Hepatite C Crônica/tratamento farmacológico , 2-Naftilamina/administração & dosagem , Administração Oral , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Anilidas/administração & dosagem , Benzimidazóis/administração & dosagem , Benzofuranos/administração & dosagem , Ciclopropanos/administração & dosagem , Combinação de Medicamentos , Quimioterapia Combinada/métodos , Feminino , Fluorenos/administração & dosagem , Seguimentos , Técnicas de Genotipagem , Hepacivirus/genética , Hepatite C Crônica/sangue , Hepatite C Crônica/diagnóstico , Hepatite C Crônica/virologia , Humanos , Imidazóis/administração & dosagem , Lactamas Macrocíclicas/administração & dosagem , Masculino , Pessoa de Meia-Idade , Prolina/administração & dosagem , Prolina/análogos & derivados , Quinoxalinas/administração & dosagem , RNA Viral/sangue , Ribavirina/administração & dosagem , Sofosbuvir/administração & dosagem , Sulfonamidas/administração & dosagem , Resposta Viral Sustentada , Resultado do Tratamento , Uracila/administração & dosagem , Uracila/análogos & derivados , Valina/administração & dosagem , Adulto Jovem
6.
PLoS Negl Trop Dis ; 15(7): e0009522, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-34237063

RESUMO

Ribavirin is the only available Lassa fever treatment. The rationale for using ribavirin is based on one clinical study conducted in the early 1980s. However, reanalysis of previous unpublished data reveals that ribavirin may actually be harmful in some Lassa fever patients. An urgent reevaluation of ribavirin is therefore needed.


Assuntos
Antivirais/administração & dosagem , Febre Lassa/tratamento farmacológico , Ribavirina/administração & dosagem , Humanos , Febre Lassa/virologia
7.
Pharmacol Res Perspect ; 9(4): e00811, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34152088

RESUMO

This study aimed to investigate the efficacy and safety of sofosbuvir-based therapies for the treatment of cirrhosis from hepatitis C virus (HCV) genotype 2 infection. Data of all consecutive HCV genotype 2 cirrhotic patients who started sofosbuvir-based treatments between January 2015 and March 2017 in eight Italian tertiary hospitals were collected retrospectively. Overall, 273 patients (Child A: 94.5%) were enrolled. In the 194 subjects treated with sofosbuvir/ribavirin, median initial ribavirin dosage was 13.9 mg/kg/day, and therapy duration was 16 weeks. Sustained virological response (SVR) rates were 93.8% in intention-to-treat (ITT) and 95.3% in per-protocol (PP) analyses for the 129 treatment-naïve patients, and 96.9% (ITT) and 98.4% (PP) for the 65 treatment-experienced subjects. Adverse events were reported in 142 patients (73.2%), but only 1.5% discontinued treatment. Eighty-eight subjects with treatment-induced anemia (mild: 34.5%, moderate: 7.7%, severe: 3.1%) had to reduce ribavirin dosage, but SVR rates were comparable to the weight-based dose group, both in ITT (95.4% and 94.3%) and PP (97.7% and 95.2%) analyses, respectively. Moreover, ITT and PP SVR rates were similar between shorter (<20 weeks) (94.1% and 96.0%, respectively) and prolonged (≥20 weeks) regimens (95.7% and 96.7%, respectively). SVR rates in the 79 subjects treated with sofosbuvir/daclatasvir (without ribavirin) were similar (ITT: 96.2%; PP: 97.4%, respectively), without de novo/worsening anemia. In conclusion, in a real-life study centered on genotype 2 patients with well-compensated cirrhosis, sofosbuvir-based regimens were associated with good SVR and tolerability rates, regardless of previous antiviral treatments, without a significant impact of on treatment ribavirin dose reductions.


Assuntos
Antivirais/administração & dosagem , Carbamatos/administração & dosagem , Hepacivirus/genética , Hepatite C Crônica/tratamento farmacológico , Imidazóis/administração & dosagem , Cirrose Hepática/tratamento farmacológico , Pirrolidinas/administração & dosagem , Ribavirina/administração & dosagem , Sofosbuvir/administração & dosagem , Valina/análogos & derivados , Adulto , Idoso , Idoso de 80 Anos ou mais , Antivirais/efeitos adversos , Carbamatos/efeitos adversos , Quimioterapia Combinada , Feminino , Genótipo , Hepatite C Crônica/complicações , Hepatite C Crônica/virologia , Humanos , Imidazóis/efeitos adversos , Cirrose Hepática/etiologia , Cirrose Hepática/virologia , Masculino , Pessoa de Meia-Idade , Pirrolidinas/efeitos adversos , RNA Viral/genética , Estudos Retrospectivos , Ribavirina/efeitos adversos , Sofosbuvir/efeitos adversos , Resultado do Tratamento , Valina/administração & dosagem , Valina/efeitos adversos
8.
J Clin Apher ; 36(5): 780-784, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34061376

RESUMO

Although Crimean-Congo hemorrhagic fever (CCHF) is mild and self-limited in children, some patients may develop excessive bleeding, massive liver necrosis, and multiple organ failure associated with secondary hemophagocytic lymphohistiocytosis (HLH) induced by cytokine storm. Treatment of CCHF is mainly symptomatic and supportive. The efficacy of ribavirin, which is the only antiviral drug in the treatment of CCHF, remains controversial. Although therapeutic plasma exchange (TPE) has been shown to beneficial in small case series with primary and secondary HLH, there is no pediatric patient with HLH secondary to CCHF treated with TPE in the literature. In this report, we describe the first pediatric patient who was successfully recovered from HLH secondary to CCHF with ribavirin, intravenous immunoglobulin, and TPE.


Assuntos
Febre Hemorrágica da Crimeia/complicações , Imunoglobulinas Intravenosas/administração & dosagem , Linfo-Histiocitose Hemofagocítica/terapia , Troca Plasmática/métodos , Ribavirina/administração & dosagem , Adolescente , Humanos , Masculino
9.
Medicine (Baltimore) ; 100(24): e26312, 2021 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-34128871

RESUMO

ABSTRACT: All-oral direct-acting antiviral therapies are becoming the choice for hepatitis C (HCV) treatment. In this study, we aimed to evaluate the efficacy and safety of ritonavir-boosted danoprevir (DNVr) plus sofosbuvir±ribavirin on HCV genotype 1, 2, 3, or 6 in the real world in China.In this observational, prospective, multicenter cohort, we enrolled a total of 58 patients with HCV genotype 1, 2, 3, or 6 patients from July 2018 to December 2019. All patients were treated with DNVr plus sofosbuvir ± ribavirin for 12 weeks and then followed up for 12 weeks. The primary endpoint was the rate of sustained virologic response at week 12 after the end of treatment (SVR12). The secondary endpoint was virologic response rate at end-of-treatment and adverse event outcome.Of the 58 patients who were enrolled, 5.2% (n = 3) had genotype 1a; 43.1% (n = 25) had HCV genotype 1b; 17.2% (n = 10) had genotype 2a; 5.2% (n = 3) had genotype 3a; 8.6% (n = 5) had genotype 3b; and 20.7% (n = 12) had genotype 6a. The virologic response rate at end-of-treatment was 100% (58/58). The HCV-RNA results of 5 patients were absent at week 12 after treatment. Among the 53 patients, SVR12 rate achieved 100% (53/53) with DNVr plus sofosbuvir ± ribavirin treatment in patients with HCV genotype 1b, 2a, 3, and 6a. For compensated cirrhosis and noncirrhosis patients, SVR12 was 100% with DNVr plus sofosbuvir ± ribavirin treatment. No serious event was observed during the treatment and follow-up. Only 5 patients had mild adverse events.DNVr plus sofosbuvir ± ribavirin for 12 weeks provided 100% SVR12 in a broad patient population and were well tolerated, which may be a promising regimen for CHC treatment.


Assuntos
Antivirais/administração & dosagem , Ciclopropanos/administração & dosagem , Hepacivirus/genética , Hepatite C Crônica/tratamento farmacológico , Isoindóis/administração & dosagem , Lactamas Macrocíclicas/administração & dosagem , Prolina/análogos & derivados , Ribavirina/administração & dosagem , Sofosbuvir/administração & dosagem , Sulfonamidas/administração & dosagem , Adulto , China , Quimioterapia Combinada , Feminino , Genótipo , Hepatite C Crônica/virologia , Humanos , Cirrose Hepática/virologia , Masculino , Pessoa de Meia-Idade , Prolina/administração & dosagem , Estudos Prospectivos , RNA Viral/efeitos dos fármacos , Resposta Viral Sustentada
11.
Curr Med Sci ; 41(3): 581-586, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34047942

RESUMO

Hepatitis C virus genotype 4 (HCV-GT4) is a risk factor for cirrhosis, hepatocellular carcinoma and liver failure. A combination of three new direct-acting antivirals ombitasvir, paritaprevir, and ritonavir has been recommended for treatment of HCV-GT4 infection. The current study was aimed to assess the efficacy and safety of this combination plus ribavirin in non-cirrhotic, treatment-naïve and -experienced Egyptians with HCV-GT4 infection in a real-world setting. A total of 255 Egyptians with HCV-GT4 infection were enrolled, including 82 treatment-experienced and 173 treatment-naïve patients. All of them completed 12-week treatment protocol of ombitasvir, paritaprevir and ritonavir as an oral dose combination with ribavirin. Virological response (VR) was measured, as well as the biochemical parameters related to treatment efficacy and adverse events at baseline and after treatment, at 4 (VR4) and 12 (VR12) weeks post-treatment. The results showed that the VR4 rates were 98.8% in both groups, and VR12 rates were 97.7% and 96.3% in treatment-naïve and -experienced patients, respectively, with no significant differences found between the groups concerning VR4 (P=0.9) and VR12 (P=0.3). The most common adverse events were headache and fatigue, which were significantly more common (P=0.001 and 0.003, respectively) in treatment-experienced than in treatment-naïve group. The quadruple regimen was well-tolerated, and the reported adverse events were generally mild to moderate. This real-world setting study confirms that the combination of ombitasvir, paritaprevir, ritonavir, and ribavirin is highly effective in the treatment of HCV- GT4 infection with a good safety and tolerability profile.


Assuntos
Anilidas/administração & dosagem , Ciclopropanos/administração & dosagem , Hepatite C Crônica/tratamento farmacológico , Lactamas Macrocíclicas/administração & dosagem , Prolina/análogos & derivados , Ribavirina/administração & dosagem , Ritonavir/administração & dosagem , Sulfonamidas/administração & dosagem , Valina/administração & dosagem , Adulto , Anilidas/efeitos adversos , Ciclopropanos/efeitos adversos , Quimioterapia Combinada , Feminino , Genótipo , Hepacivirus/efeitos dos fármacos , Hepacivirus/patogenicidade , Hepatite C Crônica/genética , Hepatite C Crônica/patologia , Hepatite C Crônica/virologia , Humanos , Lactamas Macrocíclicas/efeitos adversos , Masculino , Prolina/administração & dosagem , Prolina/efeitos adversos , Ribavirina/efeitos adversos , Ritonavir/efeitos adversos , Sulfonamidas/efeitos adversos , Valina/efeitos adversos
12.
Int J Infect Dis ; 107: 62-68, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33878461

RESUMO

OBJECTIVES: The treatment of acute herpangina is inconsistent. We aim to evaluate the effectiveness and safety of interferon α-2b spray versus Ribavirin for this disease. METHODS: A randomized, controlled trial was conducted in eight hospitals in China between 2016 and 2018. 668 patients (1-7 years old) were randomized into an experimental group (treated with Interferon α-2b spray) or control group (received Ribavirin Aerosol). Body temperature returning to normal within 72 h and remaining so for 24 h was the primary outcome; release of oral herpes and adverse events were the secondary outcomes. RESULTS: (1) The average age of onset was 2.5 years old. (2) After 72 h treatment, body temperature of 98.5% patients in experimental group and 94.3% in control group returned to normal and remained so for 24 h (P = 0.004). The differences were greater at 48 h treatment (95.2% vs. 85.9%, P < 0.001) and at 24 h (77.5% vs. 66.5%, P = 0.001). (3) The rate of improved oral herpes in the experimental group was higher than that in control group (46.7% vs.37.1%, P = 0.011). No adverse reaction occurred. CONCLUSIONS: Local application of recombinant interferon α-2b spray showed better efficacy for acute herpangina in children. It was safe for use.


Assuntos
Antivirais/administração & dosagem , Herpangina/tratamento farmacológico , Interferon alfa-2/administração & dosagem , Antivirais/efeitos adversos , Temperatura Corporal , Criança , Pré-Escolar , China , Método Duplo-Cego , Feminino , Febre/tratamento farmacológico , Humanos , Lactente , Interferon alfa-2/efeitos adversos , Masculino , Sprays Orais , Úlceras Orais/tratamento farmacológico , Ribavirina/administração & dosagem
13.
Lancet Glob Health ; 9(4): e469-e478, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-33740408

RESUMO

BACKGROUND: Lassa fever is a viral haemorrhagic fever endemic in parts of west Africa. New treatments are needed to decrease mortality, but pretrial reference data on the disease characteristics are scarce. We aimed to document baseline characteristics and outcomes for patients hospitalised with Lassa fever in Nigeria. METHODS: We did a prospective cohort study (LASCOPE) at the Federal Medical Centre in Owo, Nigeria. All patients admitted with confirmed Lassa fever were invited to participate and asked to give informed consent. Patients of all ages, including newborn infants, were eligible for inclusion, as were pregnant women. All participants received standard supportive care and intravenous ribavirin according to Nigeria Centre for Disease Control guidelines and underwent systematic biological monitoring for 30 days. Patients' characteristics, care received, mortality, and associated factors were recorded using standard WHO forms. We used univariable and multivariable logistic regression models to investigate an association between baseline characteristics and mortality at day 30. FINDINGS: Between April 5, 2018, and March 15, 2020, 534 patients with confirmed Lassa fever were admitted to hospital, of whom 510 (96%) gave consent and were included in the analysis. The cohort included 258 (51%) male patients, 252 (49%) female patients, 426 (84%) adults, and 84 (16%) children (younger than 18 years). The median time between first symptoms and hospital admission was 8 days (IQR 7-13). At baseline, 176 (38%) of 466 patients had a Lassa fever RT-PCR cycle threshold (Ct) lower than 30. From admission to end of follow-up, 120 (25%) of 484 reached a National Early Warning Score (second version; NEWS2) of 7 or higher, 67 (14%) of 495 reached a Kidney Disease-Improving Global Outcome (KDIGO) stage of 2 or higher, and 41 (8%) of 510 underwent dialysis. All patients received ribavirin for a median of 10 days (IQR 9-13). 62 (12%) patients died (57 [13%] adults and five [6%] children). The median time to death was 3 days (1-6). The baseline factors independently associated with mortality were the following: age 45 years or older (adjusted odds ratio 16·30, 95% CI 5·31-50·30), NEWS2 of 7 or higher (4·79, 1·75-13·10), KDIGO grade 2 or higher (7·52, 2·66-21·20), plasma alanine aminotransferase 3 or more times the upper limit of normal (4·96, 1·69-14·60), and Lassa fever RT-PCR Ct value lower than 30 (4·65, 1·50-14·50). INTERPRETATION: Our findings comprehensively document clinical and biological characteristics of patients with Lassa fever and their relationship with mortality, providing prospective estimates that could be useful for designing future therapeutic trials. Such trials comparing new Lassa fever treatments to a standard of care should take no more than 15% as the reference mortality rate and consider adopting a combination of mortality and need for dialysis as the primary endpoint. FUNDING: Institut National de la Santé et de la Recherche Médicale, University of Oxford, EU, UK Department for International Development, Wellcome Trust, French Ministry of Foreign Affairs, Agence Nationale de Recherches sur le SIDA et les hépatites virales, French National Research Institute for Sustainable Development.


Assuntos
Febre Lassa/mortalidade , Vírus Lassa/isolamento & purificação , Cuidados Paliativos , Ribavirina/administração & dosagem , Administração Intravenosa , Adolescente , Adulto , Fatores Etários , Criança , Pré-Escolar , DNA Viral/isolamento & purificação , Feminino , Seguimentos , Mortalidade Hospitalar , Hospitalização/estatística & dados numéricos , Humanos , Lactente , Recém-Nascido , Estimativa de Kaplan-Meier , Febre Lassa/diagnóstico , Febre Lassa/terapia , Febre Lassa/virologia , Vírus Lassa/genética , Masculino , Pessoa de Meia-Idade , Nigéria/epidemiologia , Gravidez , Prognóstico , Estudos Prospectivos , Reação em Cadeia da Polimerase Via Transcriptase Reversa/estatística & dados numéricos , Fatores de Risco , Índice de Gravidade de Doença , Fatores de Tempo , Resultado do Tratamento , Adulto Jovem
14.
Medicine (Baltimore) ; 100(12): e25110, 2021 Mar 26.
Artigo em Inglês | MEDLINE | ID: mdl-33761674

RESUMO

ABSTRACT: Oral direct-acting antiviral (DAA) treatment leads to >95% sustained virological response (SVR) and could be clinically useful in regression of liver fibrosis in chronic hepatitis C virus (HCV) infection. We evaluated if ledipasvir/sofosbuvir or sofosbuvir + ribavirin is associated with regression of fibrosis in HCV patients who achieved SVR.In this prospective cohort study performed at 3 sites in Japan, patients with genotype 1 and genotype 2 were given standard treatment of ledipasvir 90 mg/sofosbuvir 400 mg and sofosbuvir 400 mg + 200-1000 mg/day ribavirin, respectively, for 12 weeks. Liver fibrosis was assessed using Mac-2-binding protein glycosylation isomer (M2BPGi) and other fibrosis markers (platelet count, Fib-4 index, liver stiffness measurement [LSM]) in patients who achieved SVR.A total of 98.1% of (n = 101/103) patients in genotype 1 cohort and 100% (n = 16/16) in the genotype 2 cohort achieved SVR12. Based on per-protocol analysis, M2BPGi levels showed a significant decrease (-2.2  cut-off index [COI], P < .0001) at week 48 after treatment initiation. Forty-three patients showed a significant decrease in Fib-4 index (-1.2, P < .0001), and 44 patients showed improvement in LSM (-5.9 kPa, P < .0001).Achievement of SVR after antiviral therapy was associated with fibrosis regression. M2BPGi correlated well with LSM at week 48 after treatment initiation, supporting the sustainable benefit of HCV therapy.


Assuntos
Benzimidazóis/administração & dosagem , Fluorenos/administração & dosagem , Hepacivirus/efeitos dos fármacos , Hepatite C Crônica/tratamento farmacológico , Cirrose Hepática/tratamento farmacológico , Ribavirina/administração & dosagem , Sofosbuvir/administração & dosagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Quimioterapia Combinada , Feminino , Hepatite C Crônica/complicações , Humanos , Fígado/efeitos dos fármacos , Fígado/virologia , Cirrose Hepática/virologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Resposta Viral Sustentada , Resultado do Tratamento
15.
Sci Rep ; 11(1): 4623, 2021 02 25.
Artigo em Inglês | MEDLINE | ID: mdl-33633233

RESUMO

The new anti-hepatitis C virus (HCV) molecules improve treatment regimens and outcomes, but there are drawbacks. New combinations should target the HCV infectious cycle and be effective against all HCV genotypes. We developed the novel formulation Catvira, composed of epigallocatechingallate (EGCG) + sofosbuvir + ribavirin. Here, we compared Catvira to sofosbuvir + ribavirin tablets in patients with CHC genotype 4 in a randomized open-label efficacy and safety study. Treatment-naïve and treatment-experienced patients (n = 80) were randomly assigned to receive a single daily fixed dose of Catvira or sofosbuvir + ribavirin for 12 or 24 weeks. Both Catvira and sofosbuvir + ribavirin yielded similar outcomes of viral load (p < 0.001). Patients receiving Catvira had a significantly more rapid rate of viral load decline with sustained virologic response (SVR12) achieved by 90% of patients receiving 12 weeks of treatment. Catvira did not impact hemoglobin levels while sofosbuvir + ribavirin showed significant decline in hemoglobin levels after 24 weeks (p < 0.05). In this clinical trial (ClinicalTrials.gov Identifier NCT02483156), we found that Catvira administered daily for 12 or 24 weeks is safe, effective, and well-tolerated in both naïve and treatment-experienced patients with HCV genotype 4.


Assuntos
Antivirais/uso terapêutico , Catequina/análogos & derivados , Hepatite C/tratamento farmacológico , Ribavirina/administração & dosagem , Sofosbuvir/administração & dosagem , Adulto , Antivirais/administração & dosagem , Catequina/administração & dosagem , Feminino , Genótipo , Hepatite C/genética , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto
16.
J Med Virol ; 93(5): 3176-3183, 2021 05.
Artigo em Inglês | MEDLINE | ID: mdl-33590901

RESUMO

This trial compared the rate and time of viral clearance in subjects receiving a combination of nitazoxanide, ribavirin, and ivermectin plus Zinc versus those receiving supportive treatment. This non-randomized controlled trial included 62 patients on the triple combination treatment versus 51 age- and sex-matched patients on routine supportive treatment. all of them confirmed cases by positive reverse-transcription polymerase chain reaction of a nasopharyngeal swab. Trial results showed that the clearance rates were 0% and 58.1% on the 7th day and 13.7% and 73.1% on the 15th day in the supportive treatment and combined antiviral groups, respectively. The cumulative clearance rates on the 15th day are 13.7% and 88.7% in the supportive treatment and combined antiviral groups, respectively. This trial concluded by stating that the combined use of nitazoxanide, ribavirin, and ivermectin plus zinc supplement effectively cleared the SARS-COV2 from the nasopharynx in a shorter time than symptomatic therapy.


Assuntos
Tratamento Farmacológico da COVID-19 , Ivermectina/uso terapêutico , Nitrocompostos/uso terapêutico , Ribavirina/uso terapêutico , SARS-CoV-2 , Tiazóis/uso terapêutico , Zinco/uso terapêutico , Adulto , Antimetabólitos/administração & dosagem , Antimetabólitos/uso terapêutico , Antiparasitários/administração & dosagem , Antiparasitários/uso terapêutico , Feminino , Humanos , Ivermectina/administração & dosagem , Masculino , Nitrocompostos/administração & dosagem , Ribavirina/administração & dosagem , Tiazóis/administração & dosagem , Oligoelementos/administração & dosagem , Oligoelementos/uso terapêutico , Zinco/administração & dosagem
17.
J Clin Pharm Ther ; 46(5): 1465-1468, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33534133

RESUMO

WHAT IS KNOWN AND OBJECTIVE: Drug-drug interactions can involve inhibition or induction of cell membrane transporters. Deinduction occurs after an inducing agent is stopped. CASE SUMMARY: This case describes suspected P-glycoprotein (P-gp) deinduction by carbamazepine resulting in a slow viral response during treatment of chronic hepatitis C virus (HCV) infection. Evidence of deinduction occurred beyond clearance of carbamazepine and resulted in extension of HCV treatment. WHAT IS NEW: The understanding of the role P-gp transport plays in drug elimination is relatively new and evidence of P-gp deinduction is variable. CONCLUSION: Clinicians should consider deinduction when starting and stopping medications involving strong inducers of P-gp transport proteins.


Assuntos
Membro 1 da Subfamília B de Cassetes de Ligação de ATP/efeitos dos fármacos , Antirretrovirais/uso terapêutico , Carbamatos/uso terapêutico , Carbamazepina/farmacologia , Hepatite C Crônica/tratamento farmacológico , Compostos Heterocíclicos de 4 ou mais Anéis/uso terapêutico , Ribavirina/uso terapêutico , Sofosbuvir/uso terapêutico , Antirretrovirais/administração & dosagem , Carbamatos/administração & dosagem , Membrana Celular/efeitos dos fármacos , Combinação de Medicamentos , Interações Medicamentosas , Compostos Heterocíclicos de 4 ou mais Anéis/administração & dosagem , Humanos , Masculino , Pessoa de Meia-Idade , Ribavirina/administração & dosagem , Sofosbuvir/administração & dosagem
18.
Int J Infect Dis ; 104: 641-648, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33515771

RESUMO

OBJECTIVE: To assess the efficacy and safety of ribavirin and interferon-α (RBV/IFN-α) therapy in COVID-19 patients. METHODS: A multicenter, retrospective cohort study of COVID-19 patients admitted to 4 hospitals in Hubei Province, China, from 31 December 2019 to 31 March 2020. Patients were divided into 2 groups according to their exposure to RBV/IFN-α therapy within 48 h of admission. Mixed-effect Cox model and Logistic regression were used to explore the association between early treatments of RBV/IFN-α and primary outcomes. RESULTS: Of 2037 patients included, 1281 received RBV/IFN-α (RBV, IFN-α or RBV combined with IFN-α) treatments and 756 received none of these treatments. In a mixed effect model, RBV/IFN-α therapy was not associated with progression from non-severe into severe type (adjusted hazard ratio (aHR) = 1.09, 95% CI: 0.88-1.36) or with reduction in 30-day mortality (aHR = 0.89, 95% CI: 0.61-1.30). However, it was associated with a higher probability of hospital stay >15 days (adjusted odds ratio (aOR) = 2.11, 95% CI: 1.68-2.64) compared with no RBV/IFN-α therapy. The propensity score-matched cohort and subgroup analysis displayed similar results. CONCLUSION: RBV/IFN-α therapy was not observed to improve clinical outcomes in COVID-19 patients suggesting that RBV/IFN-α therapy should be avoided in COVID-19 treatment.


Assuntos
Antivirais/administração & dosagem , Tratamento Farmacológico da COVID-19 , Interferon-alfa/administração & dosagem , Ribavirina/administração & dosagem , SARS-CoV-2 , Adulto , Idoso , COVID-19/mortalidade , Quimioterapia Combinada , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
19.
J Gastroenterol Hepatol ; 36(5): 1300-1308, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33217040

RESUMO

BACKGROUND AND AIM: Real-world data on sofosbuvir/velpatasvir with and without ribavirin (SOF/VEL ± RBV), particularly among patients with genotype 3 (GT3) decompensated cirrhosis, prior treatment, coinfection, and hepatocellular carcinoma (HCC), are scarce. We aimed to assess the efficacy and safety of SOF/VEL ± RBV in a real-world setting that included both community and incarcerated GT3 hepatitis C virus (HCV) patients. METHODS: We included all GT3 HCV patients treated with SOF/VEL ± RBV in our institution. The primary outcome measure was the overall sustained virological response 12 weeks after treatment (SVR12), reported in both intention-to-treat (ITT) and per-protocol analyses. The secondary outcome measures were SVR12 stratified by the presence of decompensated cirrhosis, prior treatment, HCC, and HIV/hepatitis C virus coinfection and the occurrence rate of serious adverse events requiring treatment cessation or hospitalization. RESULTS: A total of 779 HCV patients were treated with 12 weeks of SOF/VEL ± RBV, of which 85% were treated during incarceration. Among the 530 GT3 HCV patients, 31% had liver cirrhosis, and 6% were treatment-experienced. The overall SVR12 for GT3 was 98.7% (95% confidence interval: 97.3%, 99.5%) and 99.2% (95% confidence interval: 98.1%, 99.8%) in ITT and per-protocol analyses, respectively. High SVR12 was also seen in ITT analysis among GT3 HCV patients with decompensated cirrhosis (88%), prior treatment (100%), HCC (100%), and HIV/hepatitis B virus coinfection (100%). Apart from one patient who developed myositis, no other serious adverse events were observed. CONCLUSION: The SOF/VEL ± RBV is a safe and efficacious treatment option for GT3 HCV patients in a real-world setting. SOF/VEL with RBV may be considered for decompensated GT3 HCV patients.


Assuntos
Carbamatos/administração & dosagem , Genótipo , Hepacivirus/genética , Hepatite C Crônica/tratamento farmacológico , Hepatite C Crônica/virologia , Compostos Heterocíclicos de 4 ou mais Anéis/administração & dosagem , Sofosbuvir/administração & dosagem , Adulto , Coinfecção , Quimioterapia Combinada , Feminino , Infecções por HIV , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Ribavirina/administração & dosagem , Resposta Viral Sustentada , Resultado do Tratamento
20.
J Acquir Immune Defic Syndr ; 86(2): 248-257, 2021 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-33079903

RESUMO

OBJECTIVES: To investigate the effectiveness, safety, and reasons for premature discontinuation of direct-acting antivirals (DAAs) in a diverse population of HIV/hepatitis C virus (HCV) coinfected individuals in Europe. METHODS: All HIV/HCV coinfected individuals in the EuroSIDA study that started interferon free DAA treatment between January 6, 2014, and January 3, 2018, with ≥12 weeks of follow-up after treatment stop were included in this analysis. Sustained virological response (SVR) was defined as a negative HCV-RNA result ≥12 weeks after stopping treatment (SVR12). Logistic regression was used to explore factors associated with SVR12. RESULTS: 1042 individuals started interferon-free DAA treatment after 1/6/2014 and were included, 862 (82.2%) had a known response to treatment, and 789 [91.5%, 95% confidence interval (CI): 89.7 to 93.4] of which achieved SVR12. There were no differences in SVR12 across regions of Europe (P = 0.84). After adjustment, the odds of achieving SVR12 was lower in individuals that received sofosbuvir/simeprevir ± ribavirin (RBV) [adjusted odds ratio 0.21 (95% CI: 0.08 to 0.53)] or ombitasvir/paritaprevir/dasabuvir ± RBV [adjusted odds ratio 0.46 (95% CI: 0.22 to 1.00)] compared with sofosbuvir/ledipasvir ± RBV. Forty-three (4.6%) individuals had one or more components of their HCV regimen stopped early, most commonly because of toxicity (n = 14); of these 14, 11 were treated with ribavirin. Increased bilirubin was the most common grade 3 or 4 laboratory adverse event (n = 15.3%) and was related to treatment with atazanavir and ribavirin. CONCLUSIONS: Our findings from real-world data on HIV/HCV coinfected individuals across Europe show DAA treatment is well tolerated and that high rates of SVR12 can be achieved in all regions of Europe.


Assuntos
Antivirais/uso terapêutico , Coinfecção/tratamento farmacológico , Infecções por HIV/tratamento farmacológico , Hepatite C/tratamento farmacológico , Interferons/uso terapêutico , Anilidas , Antivirais/administração & dosagem , Benzimidazóis , Ciclopropanos , Feminino , Fluorenos , Hepacivirus , Hepatite C/complicações , Hepatite C Crônica/tratamento farmacológico , Humanos , Interferons/administração & dosagem , Lactamas Macrocíclicas , Masculino , Pessoa de Meia-Idade , Prolina/análogos & derivados , Ribavirina/administração & dosagem , Ribavirina/uso terapêutico , Simeprevir/administração & dosagem , Simeprevir/uso terapêutico , Sofosbuvir/administração & dosagem , Sofosbuvir/uso terapêutico , Sulfonamidas , Resposta Viral Sustentada , Valina
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