Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 96
Filtrar
1.
Gut ; 66(2): 330-341, 2017 02.
Artigo em Inglês | MEDLINE | ID: mdl-26511797

RESUMO

OBJECTIVE: To assess incidence and prognostic significance of bacterial infections (BIs) occurring in compensated viral cirrhosis. DESIGN: This prospective study involved 35 French centres. Inclusion criteria were biopsy-proven HCV or HBV cirrhosis, Child-Pugh A and no previous hepatic complications. Cumulative incidence (CumI) of events was estimated in a competing risks framework. RESULTS: 1672 patients were enrolled (HCV 1323, HBV 318, HCV-HBV 31). During a median follow-up of 43 months, 234 BIs occurred in 171 patients (5 year CumI: 12.9%), among whom 14.6% had septic shock. Main localisations included the urinary tract (27.4%), lung (25.2%) and peritoneum (10.7%) (other, 86 (36.7%)). Most BIs occurred as a first event prior to liver decompensation (n=140, 81.8%) and were community-acquired (CA, 84.2%). The risk of BI was higher in patients with HCV than in patients with HBV (5 year CumI: 15.2% vs 5.5%, p=0.0008). Digestive localisation, concomitant interferon-based treatment, isolation of resistant bacteria and non-CA BIs were associated with lowest probability of resolution. The occurrence of a first BI impaired survival in patients infected with HCV (5 year survival: 60.2% vs 90.4%, p<0.001) and patients infected with HBV (5 year survival: 69.2% vs 97.6%, p<0.001). BIs represented the third cause of death (14.1%) after liver failure and liver cancer. BI risk factors comprised older age, lower albumin, proton pump inhibitor intake and absence of virological eradication/control. CONCLUSION: BI mostly occurs as a first complication and represents a turning point in the course of compensated viral cirrhosis. Its occurrence impacts long-term prognosis and may define a subgroup of patients in whom adaptation of management is warranted.


Assuntos
Infecções Bacterianas/mortalidade , Coinfecção/mortalidade , Cirrose Hepática/mortalidade , Cirrose Hepática/fisiopatologia , Neoplasias Hepáticas/mortalidade , Adulto , Causas de Morte , Feminino , França/epidemiologia , Hepatite B Crônica/complicações , Hepatite C Crônica/complicações , Humanos , Incidência , Cirrose Hepática/virologia , Falência Hepática/mortalidade , Masculino , Pessoa de Meia-Idade , Peritonite/microbiologia , Peritonite/mortalidade , Pneumonia/mortalidade , Prognóstico , Estudos Prospectivos , Fatores de Risco , Índice de Gravidade de Doença , Taxa de Sobrevida , Infecções Urinárias/mortalidade
2.
Gastroenterology ; 152(1): 142-156.e2, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-27641509

RESUMO

BACKGROUND & AIMS: We performed a prospective study to investigate the effects of a sustained viral response (SVR) on outcomes of patients with hepatitis C virus (HCV) infection and compensated cirrhosis. METHODS: We collected data from 1323 patients included in the prospective Agence Nationale pour la Recherche sur le SIDA et les hépatites virales (ANRS) viral cirrhosis (CirVir) cohort, recruited from 35 clinical centers in France from 2006 through 2012. All patients had HCV infection and biopsy-proven cirrhosis, were Child-Pugh class A, and had no prior liver complications. All patients received anti-HCV treatment before or after inclusion (with interferon then with direct antiviral agents) and underwent an ultrasound examination every 6 months, as well as endoscopic evaluations. SVR was considered as a time-dependent covariate; its effect on outcome was assessed by the Cox proportional hazard regression method. We used a propensity score to minimize confounding by indication of treatment and capacity to achieve SVR. RESULTS: After a median follow-up period of 58.2 months, 668 patients (50.5%) achieved SVR. SVR was associated with a decreased incidence of hepatocellular carcinoma (hazard ratio [HR] compared with patients without an SVR, 0.29; 95% confidence interval [CI], 0.19-0.43; P < .001) and hepatic decompensation (HR, 0.26; 95% CI, 0.17-0.39; P < .001). Patients with SVRs also had a lower risk of cardiovascular events (HR, 0.42; 95% CI, 0.25-0.69; P = .001) and bacterial infections (HR, 0.44; 95% CI, 0.29-0.68; P < .001). Metabolic features were associated with a higher risk of hepatocellular carcinoma in patients with SVRs, but not in patients with viremia. SVR affected overall mortality (HR, 0.27 compared with patients without SVR; 95% CI, 0.18-0.42; P < .001) and death from liver-related and non-liver-related causes. Similar results were obtained in a propensity score-matched population. CONCLUSIONS: We confirmed a reduction in critical events, liver-related or not, in a prospective study of patients with HCV infection and compensated cirrhosis included in the CirVir cohort who achieved an SVR. We found an SVR to reduce overall mortality and risk of death from liver-related and non-liver-related causes. A longer follow-up evaluation is required to accurately describe and assess specific risk factors for complications in this population.


Assuntos
Antivirais/uso terapêutico , Carcinoma Hepatocelular/epidemiologia , Hepatite C/tratamento farmacológico , Cirrose Hepática/fisiopatologia , Neoplasias Hepáticas/epidemiologia , Resposta Viral Sustentada , Idoso , Aspartato Aminotransferases/sangue , Infecções Bacterianas/epidemiologia , Índice de Massa Corporal , Carcinoma Hepatocelular/mortalidade , Doenças Cardiovasculares/epidemiologia , Diabetes Mellitus/epidemiologia , Dislipidemias/epidemiologia , Feminino , Seguimentos , França/epidemiologia , Hepatite C/complicações , Hepatite C/mortalidade , Humanos , Incidência , Cirrose Hepática/complicações , Cirrose Hepática/mortalidade , Neoplasias Hepáticas/mortalidade , Masculino , Síndrome Metabólica/epidemiologia , Pessoa de Meia-Idade , Contagem de Plaquetas , Estudos Prospectivos , Tempo de Protrombina , gama-Glutamiltransferase/sangue
3.
Lancet Gastroenterol Hepatol ; 1(2): 97-104, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27917405

RESUMO

BACKGROUND: To shorten the course of direct-acting antiviral agents for chronic hepatitis C virus (HCV) infection, we examined the antiviral efficacy and safety of 3 weeks of response-guided therapy with an NS3 protease inhibitor and dual NS5A inhibitor-NS5B nucleotide analogue. METHODS: In this open-label, phase 2a, single centre study, Chinese patients with chronic HCV genotype 1b infection without cirrhosis were randomly allocated by a computer program to one of three treatment groups (sofosbuvir, ledipasvir, and asunaprevir; sofosbuvir, daclatasvir, and simeprevir; or sofosbuvir, daclatasvir, and asunaprevir) until six patients in each group (1:1:1) achieved an ultrarapid virological response (plasma HCV RNA <500 IU/mL by day 2, measured by COBAS TaqMan HCV test, version 2.0). Patients with an ultrarapid virological response received 3 weeks of therapy. Patients who did not achieve an ultrarapid response were switched to sofosbuvir and ledipasvir for either 8 weeks or 12 weeks. The primary endpoint was the proportion of patients with a sustained virological response at 12 weeks (SVR12) after treatment completion, analysed in the intention-to-treat population. All patients who achieved an ultrarapid virological response were included in the safety analysis. This trial is registered with ClinicalTrials.gov, number NCT02470858. FINDINGS: Between April 5, 2015, and April 15, 2015, 26 eligible patients were recruited. 12 patients were assigned to sofosbuvir, ledipasvir, and asunaprevir; six to sofosbuvir, daclatasvir, and simeprevir; and eight to sofosbuvir, daclatasvir, and asunaprevir. Six patients in each group achieved an ultrarapid virological response (18 [69%]). All patients with an ultrarapid virological response who were given 3 weeks of triple therapy achieved SVR12. The most common adverse events were fatigue (one [17%] of six patients receiving sofosbuvir, ledipasvir, and asunaprevir; one [17%] of six patients receiving sofosbuvir, daclatasvir, and simeprevir; and two [33%] of six patients receiving sofosbuvir, daclatasvir, and asunaprevir) and headache (one [17%] patient in each group). No patients experienced any serious adverse events. INTERPRETATION: In this proof-of-concept study, all patients with chronic HCV without cirrhosis who achieved an ultrarapid virological response on triple direct-acting antiviral regimens by day 2 and received 3 weeks of treatment were cured, with excellent tolerability. By shortening the duration of therapy from the currently recommended 12 weeks to 3 weeks, we could drastically reduce the cost of therapy and the rate of adverse events. Further large-scale studies should be done to confirm our findings. FUNDING: Center for AIDS Research, National Institutes of Health, US Department of Energy, National Center for Research Resources and the Office of Research Infrastructure Programs, Cheng Si-Yuan (China-International) Hepatitis Research Foundation, and Humanity and Health Medical Group.


Assuntos
Antivirais/administração & dosagem , Hepatite C Crônica/tratamento farmacológico , Administração Oral , Adulto , Idoso , Antivirais/uso terapêutico , Benzimidazóis/administração & dosagem , Benzimidazóis/uso terapêutico , Carbamatos , Esquema de Medicação , Quimioterapia Combinada , Feminino , Fluorenos/administração & dosagem , Fluorenos/uso terapêutico , Seguimentos , Hepatite C Crônica/virologia , Humanos , Imidazóis/administração & dosagem , Imidazóis/uso terapêutico , Análise de Intenção de Tratamento , Isoquinolinas/administração & dosagem , Isoquinolinas/uso terapêutico , Masculino , Pessoa de Meia-Idade , Estudo de Prova de Conceito , Pirrolidinas , Simeprevir/administração & dosagem , Simeprevir/uso terapêutico , Sofosbuvir/administração & dosagem , Sofosbuvir/uso terapêutico , Sulfonamidas/administração & dosagem , Sulfonamidas/uso terapêutico , Resultado do Tratamento , Valina/análogos & derivados , Carga Viral
4.
Hepatology ; 64(4): 1136-47, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27348075

RESUMO

UNLABELLED: The aim of this work was to develop an individualized score for predicting hepatocellular carcinoma (HCC) in patients with hepatitis C (HCV)-compensated cirrhosis. Among 1,323 patients with HCV cirrhosis enrolled in the French prospective ANRS CO12 CirVir cohort, 720 and 360 were randomly assigned to training and validation sets, respectively. Cox's multivariate model was used to predict HCC, after which a nomogram was computed to assess individualized risk. During follow-up (median, 51.0 months), 103 and 39 patients developed HCC in the training and validation sets, respectively. Five variables were independently associated with occurrence of HCC: age > 50 years (hazard ratio [HR], 1.94; 95% confidence interval [CI], 1.16; 3.25; P = 0.012); past excessive alcohol intake (HR, 1.55; 95% CI, 1.02; 2.36; P = 0.041); low platelet count (<100 Giga/mm(3) : HR, 2.70; 95% CI, 1.62; 4.51; P < 0.001; [100; 150] Giga/mm(3) : HR, 1.87; 95% CI, 1.10; 3.18; P = 0.021); gamma-glutamyl transpeptidase above the upper limit of normal (HR, 1.96; 95% CI, 1.11; 3.47; P = 0.021); and absence of a sustained virological response during follow-up (HR, 3.02; 95% CI, 1.67; 5.48; P < 0.001). An 11-point risk score was derived from the training cohort and validated in the validation set. Based on this score, the population was stratified into three groups, in which HCC development gradually increased, from 0% to 30.1% at 5 years for patients with the lowest (≤3) and highest (≥8) scores (P < 0.001). Using this score, a nomogram was built enabling individualized prediction of HCC occurrence at 1, 3, and 5 years. CONCLUSION: This HCC score can accurately predict HCC at an individual level in French patients with HCV cirrhosis. (Hepatology 2016;64:1136-1147).


Assuntos
Carcinoma Hepatocelular/etiologia , Hepatite C Crônica/complicações , Cirrose Hepática/complicações , Neoplasias Hepáticas/etiologia , Nomogramas , Carcinoma Hepatocelular/epidemiologia , Feminino , Humanos , Cirrose Hepática/virologia , Neoplasias Hepáticas/epidemiologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
5.
Hepatology ; 62(3): 737-50, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25678021

RESUMO

UNLABELLED: Various critical events, liver related or not, occur in patients with compensated cirrhosis, but their respective burden remains to be prospectively assessed. The aim of this prospective cohort study involving 35 French centers was to capture the whole spectrum of complications occurring in compensated viral cirrhosis (VC) using competing risks analyses. Inclusion criteria were: histologically proven cirrhosis resulting from hepatitis C virus (HCV) or hepatitis B virus (HBV); Child-Pugh A; and no previous hepatic complications. The cohort was considered as a multistate disease model, cumulative incidences (CumIs) of events were estimated in a competing risks framework. A total of 1,654 patients were enrolled from 2006 to 2012 (HCV, 1,308; HBV, 315; HCV-HBV, 31). During a median follow-up of 34 months, at least one liver nodule was detected in 271 patients, confirmed as hepatocellular carcinoma (HCC) in 128 (4-year cumI: 10.5%) and cholangiocarcinoma in 3. HCC incidence was higher in HCV (4-year cumI: 11.4% vs. 7.4%; P = 0.05). HCC fulfilled Milan criteria in 79.3%, leading to curative treatment in 70.4%. Liver decompensation occurred more frequently in HCV patients (4-year cumI: 10.8% vs. 3.6%; P = 0.0004). Virological eradication/control was achieved in 34.1% of HCV and 88.6% of HBV patients and was associated with a marked decrease in HCC, decompensation, and bacterial infection incidences. Survival was shorter in HCV patients (4-year cumI: 91.6% vs. 97.2%; P = 0.0002). Death (n = 102; missing data: 6) was attributed to liver disease in 48 (47%; liver cancer: n = 18; miscellaneous, n = 30) and extrahepatic causes in 48 (47%; bacterial infection: n = 13; extrahepatic cancers: n = 10; cardiovascular events: n = 5; miscellaneous, n = 20). CONCLUSION: After 3 years of follow-up, extrahepatic events still explained half of deaths in patients with compensated VC. A strong decrease in complications was linked to virological eradication/control.


Assuntos
Carcinoma Hepatocelular/virologia , Causas de Morte , Cirrose Hepática/mortalidade , Cirrose Hepática/virologia , Neoplasias Hepáticas/virologia , Adulto , Análise de Variância , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/fisiopatologia , Estudos de Coortes , Progressão da Doença , Feminino , França , Hepatite B/complicações , Hepatite B/patologia , Hepatite C/complicações , Hepatite C/patologia , Humanos , Cirrose Hepática/complicações , Falência Hepática/mortalidade , Falência Hepática/patologia , Falência Hepática/virologia , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Valor Preditivo dos Testes , Modelos de Riscos Proporcionais , Estudos Prospectivos , Medição de Risco , Análise de Sobrevida
6.
Liver Int ; 35 Suppl 1: 71-7, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25529090

RESUMO

Chronic hepatitis C virus (HCV) causes chronic liver injury and can lead to cirrhosis and hepatocellular carcinoma (HCC). HCV can also interact with the immune system to cause several HCV related disorders including essential mixed cryoglobulinemia, vasculitis, dermatitis, glomerulonephritis and lymphoma. A strong association between HCV and diabetes mellitus also exists. These extrahepatic features may lead to increased fatigue and a reduced quality of life. It is now possible to cure most patients with chronic HCV using oral antiviral therapy. Many of these HCV-related disorders and symptoms can be cured when HCV is eradicated. However, some patients may have irreversible injury to extrahepatic sites, cirrhosis that cannot resolve, an increased risk for HCC, persistent fatigue and a reduced quality of life, despite achieving sustained virological response.


Assuntos
Antivirais/uso terapêutico , Carcinoma Hepatocelular/etiologia , Doença Hepática Terminal/etiologia , Hepatite C Crônica/complicações , Hepatite C Crônica/tratamento farmacológico , Hepatite C Crônica/epidemiologia , Neoplasias Hepáticas/etiologia , Crioglobulinemia/etiologia , Dermatite/etiologia , Glomerulonefrite/etiologia , Hepatite C Crônica/imunologia , Humanos , Linfoma/etiologia , Qualidade de Vida , Fatores de Risco , Vasculite/etiologia
7.
Liver Int ; 35(1): 148-55, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24502506

RESUMO

BACKGROUND & AIMS: Few data are available on the prevalence of renal abnormalities in chronic hepatitis B virus (HBV)-infected patients. The multicentric cross-sectional HARPE study evaluated the prevalence of kidney disease indicators, in chronic HBV surface antigen carriers patients (HBsAg+) with active or inactive infection. PATIENTS AND METHODS: Two hundred and sixty-eight HBsAg+ adult patients, naïve of any oral antihepatitis B virus treatment were prospectively included over 2 years. Data for renal assessment were collected once from patient files. Univariate tests and multiple linear regressions were performed with the SAS software, version 8.02 (SAS, Inc., Cary, NC, USA). RESULTS: Among the 260 patients analysed, 58% were men, the mean age was 42 ± 14 years, 59.6% were inactive carriers whereas 47 patients, mostly active, were about to start an antiviral therapy. Prevalence of proteinuria, haematuria, glycosuria, uninfectious leukocyturia was 38.1%, 20.6%, 3.9% and 9% respectively. According to the international definition, a total of 64.6% of patients were found to have kidney disease. Diabetes, hypertension and dyslipidaemia were observed, respectively, in 4.6%, 9.2% and 38.8% patients. There were no significant differences in these results within the three subgroups. CONCLUSION: Renal abnormalities are highly prevalent in our population and pre-exist before the initiation of any antihepatitis B virus treatment. This emphasizes the need for: (i) a baseline renal evaluation in all HBs antigen-positive patients; (ii) a regular renal monitoring before and during antihepatitis B virus treatment to diagnose and manage renal impairment and adjust antihepatitis B virus treatment doses to renal function when necessary.


Assuntos
Biomarcadores/sangue , Antígenos de Superfície da Hepatite B/sangue , Hepatite B Crônica/complicações , Hepatite B Crônica/epidemiologia , Nefropatias/epidemiologia , Adulto , Creatinina/sangue , Estudos Transversais , Diabetes Mellitus/epidemiologia , Dislipidemias/epidemiologia , Feminino , Humanos , Hipertensão/epidemiologia , Nefropatias/patologia , Modelos Lineares , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Prospectivos , Proteinúria/sangue
8.
Clin Res Hepatol Gastroenterol ; 38(4): 432-9, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24924901

RESUMO

BACKGROUND: The aspartate aminotransferase platelet ratio index (APRI) is a validated, non-patented blood test for diagnosing fibrosis or cirrhosis in patients with chronic hepatitis C. We assess the impact of two limitations, the variability of the upper limit of normal for aspartate aminotransferase (AST-ULN) and the risk of overestimating fibrosis stage due to necroinflammatory activity. METHODS: The variability of AST-ULN was assessed by an overview of the literature and an assessment of AST-ULN in 2 control populations 7521 healthy volunteers and 393 blood donors. We assessed the impact of AST-ULN variability on APRI performance for estimating fibrosis prevalence and on the Obuchowski measure using individual data of 1651 patients with APRI, FibroTest and biopsy. RESULTS: The overview, and the analysis of the control populations found that ULN-AST ranged from 26 to 49 IU/L according to gender, body mass index and serum cholesterol. When this AST-ULN variability was applied to the chronic hepatitis group, the prevalence of advanced fibrosis and cirrhosis as presumed by APRI varied (P<0.001) from 34.7% to 68.5%, and from 11.4% to 32.3%, respectively. This spectrum effect induced variability in APRI performance, which could be similar 0.862 (if AST-ULN=26 IU/L) or lower 0.820 (AST-ULN≥30IU/L) than the stable FibroTest performance (0.867; P=0.35 and P<0.0001 respectively). When applied to 18 acute hepatitis C patients, the rate of false positives of APRI varied from 0% to 61% due to AST-ULN. CONCLUSION: The AST-ULN variability is high highly associated with the variability of metabolic risk factors between the different control groups. This variability induces a spectrum effect, which could cause misleading interpretations of APRI performance for the staging of fibrosis, comparisons of APRI with other non-invasive tests, and estimates of false positive rate.


Assuntos
Aspartato Aminotransferases/sangue , Hepatite C Crônica/sangue , Cirrose Hepática/sangue , Adulto , Biomarcadores/sangue , Feminino , Hepatite C Crônica/complicações , Humanos , Cirrose Hepática/etiologia , Masculino , Pessoa de Meia-Idade , Contagem de Plaquetas , Valores de Referência , Estudos Retrospectivos
9.
Liver Int ; 34 Suppl 1: 79-84, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24373082

RESUMO

The treatment of chronic HCV is evolving rapidly. In 2014, three new oral antiviral agents, simeprevir, faldeprevir and sofosbuvir will become available for patients with HCV genotype 1. These agents have far less side effects than the first generation protease inhibitors telaprevir and boceprevir. Treatment will therefore be easier for patients to tolerate but still require peginterferon and ribavirin (PEGINF/RBV). The first IFN free therapy, sofosbuvir (SOF) and ribavirin (RBV), will also become available in 2014. This treatment is highly effective for patients with HCV genotype 2. However, SVR rates with SOF/RBV appear to be similar to that achieved with PEGINF/RBV in patients with HCV genotype 3. The first IFN-free all oral antiviral therapy combination for patients with HCV genotype 1 may be available late in 2014 or early 2015. The factors which should be considered when deciding whether to treat a patient with HCV now or to delay treatment until IFN free therapies are available is discussed.


Assuntos
Antivirais/uso terapêutico , Quimioterapia Combinada/métodos , Hepacivirus/efeitos dos fármacos , Hepatite C Crônica/tratamento farmacológico , Ácidos Aminoisobutíricos , Antivirais/farmacologia , Quimioterapia Combinada/economia , Quimioterapia Combinada/tendências , Genótipo , Hepacivirus/genética , Compostos Heterocíclicos com 3 Anéis , Humanos , Leucina/análogos & derivados , Oligopeptídeos , Prolina/análogos & derivados , Quinolinas , Ribavirina , Simeprevir , Sofosbuvir , Sulfonamidas , Tiazóis , Resultado do Tratamento , Uridina Monofosfato/análogos & derivados
10.
J Infect Dis ; 208(6): 1000-7, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23801602

RESUMO

BACKGROUND: This partially blinded, randomized, phase 2a C210 study evaluated the antiviral activity of telaprevir-based regimens in treatment-naive patients with chronic hepatitis C virus (HCV) genotype 4 infection. METHODS: Twenty-four patients received telaprevir 750 mg every 8 hours for 15 days (T; n = 8), telaprevir in combination with pegylated interferon alfa-2a and ribavirin (Peg-IFN/RBV) for 15 days (TPR; n = 8), or Peg-IFN/RBV plus placebo for 15 days (PR; n = 8), followed by Peg-IFN/RBV for 46 or 48 weeks. The primary objective was to assess the effect of telaprevir on HCV RNA levels. RESULTS: HCV RNA levels decreased slightly with T and PR; TPR produced substantial, rapid declines. On day 15, median reductions in the HCV RNA load from baseline were -0.77, -4.32, and -1.58 log10 IU/mL for T, TPR, and PR, respectively, and 0 patients in the T group, 1 in the TPR group, and 0 in the PR group had undetectable HCV RNA. Five of 8 patients who received telaprevir monotherapy had viral breakthrough within 15 days of treatment. Adverse event incidence was similar across treatments and comparable with the incidences from previous clinical trials. One patient (in T group) had a serious adverse event (considered unrelated to telaprevir) that led to treatment discontinuation. CONCLUSIONS: Telaprevir with Peg-IFN/RBV had greater activity than Peg-IFN/RBV treatment or telaprevir monotherapy against HCV genotype 4. Telaprevir was generally safe and well tolerated. Further investigation of telaprevir combination therapy in patients with HCV genotype 4 infection is warranted.


Assuntos
Antivirais/uso terapêutico , Hepacivirus/efeitos dos fármacos , Hepatite C Crônica/tratamento farmacológico , Oligopeptídeos/uso terapêutico , Adolescente , Adulto , Idoso , Antivirais/administração & dosagem , Quimioterapia Combinada , Feminino , Genótipo , Hepacivirus/genética , Hepatite C Crônica/virologia , Humanos , Interferon-alfa/administração & dosagem , Interferon-alfa/uso terapêutico , Masculino , Pessoa de Meia-Idade , Oligopeptídeos/administração & dosagem , Polietilenoglicóis/administração & dosagem , Polietilenoglicóis/uso terapêutico , RNA Viral/sangue , Proteínas Recombinantes/administração & dosagem , Proteínas Recombinantes/uso terapêutico , Ribavirina/administração & dosagem , Ribavirina/uso terapêutico , Carga Viral , Adulto Jovem
11.
J Hepatol ; 59(4): 675-83, 2013 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23712051

RESUMO

BACKGROUND & AIMS: Chronic hepatitis C is both a virologic and fibrotic disease and complications can occur in patients with sustained virologic response (SVR) with residual fibrosis. Due to the limitations of repeated biopsies, no studies have assessed the dynamic of fibrosis before and after treatment. Using biopsy as reference, FibroTest™ has been validated as a biomarker of fibrosis progression and regression, with similar prognostic values. The aim was to estimate the impact of SVR on the dynamic of fibrosis presumed by FibroTest™. METHODS: In a prospective cohort, the main end point was the 10-year regression rate of fibrosis, defined as a minimum 0.20 decrease in FibroTest™, equivalent to one METAVIR stage. RESULTS: A total of 933 patients with both repeated FibroTest™ and transient elastography were included. At 10 years, among the 415 patients with baseline advanced fibrosis, 49% (95% CI 33-64%) of the 108 SVR had a regression, which was greater than in the 219 non-responders [23% (14-33%; p < 0.001 vs. SVR)] and not lower than in the 88 non-treated [45% (10-80%; p = 0.39 vs. SVR)] patients. In all 171 SVR, cirrhosis regressed in 24/43 patients, but 15 new cirrhosis cases occurred out of 128 patients, that is only a net reduction of 5.3% [(24-15) = 9/171); (2.4-9.8%)]. Four cases of primary liver cancer occurred in SVR [4.6% (0-9.8)], and 13 in non-responders [5.6% (1.5-9.8); p = 0.07]. CONCLUSIONS: In patients with chronic hepatitis C, and as presumed by FibroTest™, virological cure was associated with slow regression of fibrosis 10years later, a disappointing 5% decrease in cirrhosis cases, and a remaining 5% risk of primary liver cancer.


Assuntos
Hepatite C Crônica/tratamento farmacológico , Hepatite C Crônica/patologia , Cirrose Hepática/patologia , Antivirais/uso terapêutico , Estudos de Coortes , Coinfecção/patologia , Progressão da Doença , Técnicas de Imagem por Elasticidade , Feminino , Seguimentos , Infecções por HIV/complicações , Infecções por HIV/patologia , Hepatite C Crônica/complicações , Humanos , Estimativa de Kaplan-Meier , Cirrose Hepática/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
12.
Liver Int ; 33 Suppl 1: 105-10, 2013 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23286853

RESUMO

The current standard of care (SOC) for patients with chronic HCV genotype 1 is a combination of either boceprevir or telaprevir with peginterferon (PEG-IFN) and ribavirin (RBV). Although it is effective in a high percentage of patients, this treatment is associated with significant adverse events (AEs). The next generation of protease inhibitors, simeprevir and faldaprevir, will also be used with PEG-IFN/RBV. Interferon-free therapy with sofosbuvir appears promising and on the horizon for patients with genotypes 2 and 3, but may still be many years away for patients with HCV genotype 1. The factors which should be considered when deciding whether to treat a patient with HCV and mild fibrosis with the current SOC now, or to delay treatment until less toxic and/or more effective therapy is available is discussed.


Assuntos
Antivirais/uso terapêutico , Hepacivirus/efeitos dos fármacos , Hepatite C/tratamento farmacológico , Cirrose Hepática/virologia , Inibidores de Serina Proteinase/uso terapêutico , Quimioterapia Combinada , Genótipo , Hepacivirus/enzimologia , Hepacivirus/genética , Hepatite C/complicações , Hepatite C/diagnóstico , Humanos , Interferon alfa-2 , Interferon-alfa/uso terapêutico , Cirrose Hepática/patologia , Seleção de Pacientes , Fenótipo , Polietilenoglicóis/uso terapêutico , Valor Preditivo dos Testes , Proteínas Recombinantes/uso terapêutico , Ribavirina/uso terapêutico , Inibidores de Serina Proteinase/efeitos adversos , Índice de Gravidade de Doença , Fatores de Tempo , Resultado do Tratamento
13.
Antivir Ther ; 17(5): 927-32, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22611092

RESUMO

BACKGROUND: Danoprevir (RG7227) is an inhibitor of the HCV NS3/4A protease. In two Phase Ib studies of treatment-naive patients with chronic HCV genotype 1 infection, danoprevir administration for 14 days was associated with HCV RNA median reduction reaching 3.8 log(10) in monotherapy and 5.7 log(10) in combination therapy with pegylated interferon (PEG-IFN)-α2a (40 KD) plus ribavirin (RBV). After the protocol-defined phase, patients were free to continue with PEG-IFN/RBV. Sustained virological response (SVR) was evaluated in patients who continued treatment with PEG-IFN/RBV. METHODS: Retrospective analysis of the patients who received a 14-day monotherapy regimen with danoprevir (100 or 200 mg every 8 or 12 h), or 14-day triple therapy with danoprevir (100, 200 or 300 mg every 8 h, or 400, 600 or 900 mg every 12 h) with PEG-IFN-α2a (40 KD; 180 µg/week subcutaneously) and RBV (1,000-1,200 mg/day) followed by PEG-IFN-α2a (40 KD; 180 µg/week subcutaneously) and RBV (1,000-1,200 mg/day) for 46 weeks (triple therapy group) for a total of 48 weeks (monotherapy group). RESULTS: Data were collected from 15 patients with danoprevir monotherapy and 24 patients with danoprevir-based triple therapy. Virological results are expressed using an intention-to-treat principle. Premature treatment discontinuation occurred in five patients. Rapid virological response (RVR; week 4) rate was 50% and 69.6% and SVR rate was 60% and 70.8% in the monotherapy and triple therapy groups, respectively. RVR was highly predictive of SVR (>90%; HCV RNA<15 IU/ml). CONCLUSIONS: The addition of danoprevir for 14 days to PEG-IFN/RBV treatment results in a high SVR rate in HCV genotype 1 treatment-naive patients.


Assuntos
Antivirais/administração & dosagem , Hepatite C Crônica/tratamento farmacológico , Interferon-alfa/administração & dosagem , Lactamas/administração & dosagem , Polietilenoglicóis/administração & dosagem , Ribavirina/administração & dosagem , Sulfonamidas/administração & dosagem , Adulto , Idoso , Antivirais/uso terapêutico , Ciclopropanos , Esquema de Medicação , Quimioterapia Combinada , Feminino , Genótipo , Hepacivirus/genética , Hepatite C Crônica/virologia , Humanos , Interferon-alfa/uso terapêutico , Isoindóis , Lactamas/uso terapêutico , Lactamas Macrocíclicas , Masculino , Pessoa de Meia-Idade , Polietilenoglicóis/uso terapêutico , Prolina/análogos & derivados , Proteínas Recombinantes/administração & dosagem , Proteínas Recombinantes/uso terapêutico , Estudos Retrospectivos , Ribavirina/uso terapêutico , Sulfonamidas/uso terapêutico , Fatores de Tempo , Resultado do Tratamento , Carga Viral
14.
J Hepatol ; 56(1): 49-54, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21781946

RESUMO

BACKGROUND & AIMS: Hepatitis C virus (HCV) coinfection is one of the leading causes of mortality in human immunodeficiency virus-infected patients. The current standard of care leads to cure only in a part of these patients. The course of the disease is determined by the rapidity of liver fibrosis progression (LFP). The influence of interferon on LFP in coinfected patients has yet not been evaluated by comparative liver biopsies. METHODS: We extracted data of patients who had serial liver biopsies from a hospital database. Histopathological findings were compared to factors possibly linked to fibrosis progression. Furthermore, we studied the impact of response to interferon treatment on fibrosis progression. RESULTS: Hundred and twenty-six patients were included, 68 had received anti-HCV treatment, and 58 had not. The median time between the first and the last biopsy was 4 years. Worsened fibrosis was observed in 35 of 58 (60%) untreated patients, and 22 of 50 (44%) patients in the nonresponder/relapser group, and in 5 out of 18 (28%) in the SVR group. Liver fibrosis evolution was significantly better in patients achieving a SVR than in untreated and NR/R patients (p<0.02, odds-ratio [95% CI] for improvement vs. stability vs. worsening=3.16 [1.24-8.07]). This result persisted after adjustment for known predictors of liver fibrosis progression, HBsAg, CD4, and alcohol consumption: adjusted odds ratio=2.89 [1.09-7.68], p=0.03. CONCLUSIONS: HCV treatment can stop fibrosis progression and induce its regression. Nonresponders to treatment may even have a fast fibrosis progression. It remains to be clarified if the same factors that induce nonresponse to treatment may also induce faster fibrosis progression.


Assuntos
Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Hepatite C Crônica/complicações , Hepatite C Crônica/tratamento farmacológico , Interferon-alfa/uso terapêutico , Cirrose Hepática/tratamento farmacológico , Adulto , Antivirais/uso terapêutico , Biópsia , Estudos de Coortes , Progressão da Doença , Feminino , Humanos , Cirrose Hepática/etiologia , Cirrose Hepática/patologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
15.
Gut ; 61(1): 128-34, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21873466

RESUMO

OBJECTIVES: Genotype-specific associations between hepatitis C virus (HCV) and insulin resistance (IR) have been described, but a causal relationship remains unclear. This study investigated the association between a sustained virological response (SVR) and IR after chronic HCV therapy. METHODS: 2255 treatment-naive patients with chronic HCV genotype 1 or 2/3 were enrolled in two phase 3 trials of albinterferon alpha-2b versus pegylated interferon alpha-2a for 48 or 24 weeks, respectively. IR was measured before treatment and 12 weeks after treatment using homeostasis model assessment (HOMA)-IR. RESULTS: Paired HOMA-IR measurements were available in 1038 non-diabetic patients (497 with genotype 1; 541 with genotype 2/3). At baseline the prevalence of HOMA-IR >3 was greater in patients with genotype 1 than 2/3 (33% vs 27%; p=0.048). There was a significant reduction in the prevalence of IR in patients with genotype 1 achieving SVR (δ 10%; p<0.001), but not in genotype 1 non-responders or those with genotype 2/3. Multivariate analysis indicated that SVR was associated with a significant reduction in mean HOMA-IR in patients with genotype 1 (p=0.004), but not in those with genotype 2/3, which was independent of body mass index, alanine transaminase, γ-glutamyl transpeptidase and lipid level changes. CONCLUSIONS: SVR is associated with a reduction in HOMA-IR in patients with HCV genotype 1 but not in those with genotype 2/3. Genotype 1 may have a direct effect on the development of IR, independent of host metabolic factors, and may be partially reversed by viral eradication.


Assuntos
Hepacivirus/genética , Hepatite C Crônica/virologia , Resistência à Insulina , Adulto , Albuminas/uso terapêutico , Antivirais/uso terapêutico , Feminino , Genótipo , Hepacivirus/isolamento & purificação , Hepatite C Crônica/complicações , Hepatite C Crônica/tratamento farmacológico , Humanos , Interferon-alfa/uso terapêutico , Modelos Lineares , Modelos Logísticos , Masculino , Análise Multivariada , Polietilenoglicóis/uso terapêutico , Proteínas Recombinantes/uso terapêutico , Resultado do Tratamento , Carga Viral
16.
Clin Res Hepatol Gastroenterol ; 35(5): 375-86, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21482219

RESUMO

BACKGROUND: Hirsch's h-Index (h-I) quantifies and predicts an individual's scientific output. The h-I can be estimated from several sources, but no "gold-standard" approach has yet been established. The aim was to analyze the discordance rates in Hepatology between five h-I assessments from five databases: Scholar, Scopus, Web of Science (WoS), ScholarL restricted to "liver", and a specialty h-I HepaTop. METHODS: The reference for the main endpoint was "h-I 50", the median of included authors. Applicability and accuracy were assessed among 158 authors identified in the top 100 of the most cited "clinical" Hepatologists by two independent sources. The accuracy assessment used the area under the receiver operating characteristics curves (AUROCs) standardized or not according to spectrum effect, and the Pearson (PCC), and intraclass (ICC) coefficients of correlation. RESULTS: Performances varied significantly according to h-I (P<0.001). Applicability was 80% for h-HepaTop and 100% for other h-I. AUROCs ranged from 0.55 (h-Scholar) to 0.88 (h-HepaTop). The h-I were highly inter-correlated but without perfect concordance: ICCs ranged from 0.01 (h-WoS versus h-Scholar) to 0.53 (h-WoS versus h-Scopus; P<0.0001). There were no differences between the AUROCs for h-Scopus, h-WoS and h-HepaTop, with lower accuracy for h-Scholar. The h-WoS AUROC adjusted for risk factors, scientific age and homonymy, increased in combination with h-HepaTop from 0.83 to 0.94 P=0.005. CONCLUSIONS: The h-I should be carefully checked before any hepatologist's evaluation. Three factors were associated with applicability and accuracy: the data source, the risk of homonyms, and scientific age. A unique "global" identification number is warranted.


Assuntos
Bibliometria , Gastroenterologia , Editoração/estatística & dados numéricos , Bases de Dados Bibliográficas
17.
Clin Res Hepatol Gastroenterol ; 35(3): 204-13, 2011 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21354889

RESUMO

BACKGROUND AND AIM: Three gene polymorphisms, interferon-lambda-3 (IL28B), inosinetriphosphatase (ITPA) and bilirubinuridine diphosphate-glucuronosyltransferase (UGT1A1) are associated with treatment (interferon and ribavirin) efficacy and adherence in patients with chronic hepatitis C. The hypothesis was that fibrosis stage estimated with FibroTest instead of biopsy was still an independent predictive factor of sustained virologic response (SVR) when these new polymorphisms were assessed. METHODS: Patients receiving standard of care treatment were retrospectively analyzed with determination of IL28B, ITPA, and UGT1A1 polymorphisms. Baseline prognostic factors were combined using logistic regression analysis in a training group (157 patients) and validated in avalidation group (79 patients). RESULTS: The combination of the five most predictive factors (HCV genotype 2/3, IL28B genotype, FibroTest, ActiTest and viral load) in the training population had AUROC for SVR=0.743 (0.655-0.810; P<0.0001 vs. random), which was validated in the validation population, AUROC=0.753 (0.616-849; P=0.0007 vs. random, not different from training P=0.88). FibroTest remained significant [OR=4.20 (2.59-12.50); P=0.03] after assessment of the IL28B CC, HCV genotype and viral load. CONCLUSION: Fibrosis stage assessed by FibroTest is an independent predictor of SVR, after accounting for the IL28B genetic polymorphism. A combination of five baseline biomarkers could simplify the baseline prediction of SVR.


Assuntos
Antivirais/uso terapêutico , Glucuronosiltransferase/sangue , Hepatite C Crônica/sangue , Hepatite C Crônica/tratamento farmacológico , Interleucinas/sangue , Pirofosfatases/sangue , Adulto , Biomarcadores/sangue , Feminino , Hepatite C Crônica/genética , Humanos , Interferons , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estudos Retrospectivos
18.
Gastroenterol Hepatol (N Y) ; 7(7): 445-54, 2011 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-22298979

RESUMO

AIMS AND METHODS: Several serum biomarkers such as FibroTest, aspartate transaminase-platelet ratio index (APRI), FIB-4, and liver stiffness measurement by FibroScan have been validated as alternatives to biopsy for the diagnosis of fibrosis in patients with chronic liver disease. This paper aims to assess the 5-year prognostic values of these biomarkers. A meta-analysis combined all published prognostic studies. Baseline biopsy and APRI data were used as references. RESULTS: Only 3 biomarkers had several prognostic validations: FibroTest (4 studies; 2,396 patients), APRI (5 studies; 2,422 patients), and FIB-4 (3 studies; 1,184 patients). For the prediction of survival without liver-related death, the areas under the receiver operating characteristic curves (AUROCs) were 0.86 for biopsy (95% confidence interval [CI], 0.77-0.95), 0.88 for FibroTest (95% CI, 0.79-0.98), 0.73 for FIB-4 (95% CI, 0.62-0.85), and 0.66 for APRI (95% CI, 0.57-0.75). APRI had a significantly lower prognostic value versus biopsy, with a mean difference between AUROCs of -0.21 (95% CI, -0.33 to -0.10; P<.001); FIB-4 had a significantly lower prognostic value versus biopsy, with a mean difference between AUROCs of -0.21 (95% CI, -0.20 to -0.02; P=.02). Only FibroTest did not show a significant difference in prognostic value versus biopsy, with a mean difference in AUROCs of +0.02 (95% CI, -0.05 to +0.09; P=.85). CONCLUSION: FibroTest is a validated biomarker for the prognosis of patients with chronic liver disease.

19.
J Hepatol ; 54(6): 1114-22, 2011 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21145839

RESUMO

BACKGROUND & AIMS: BI201335 is a highly specific and potent HCV protease inhibitor. This multiple rising dose trial evaluated antiviral activity and safety in chronic HCV genotype-1 patients. METHODS: Thirty-four treatment-naïve patients were randomized to monotherapy with placebo or BI201335 at 20-240 mg once-daily for 14 days, followed by combination with pegylated interferon alfa/ribavirin (PegIFN/RBV) through Day 28. Nineteen treatment-experienced patients received 48-240 mg BI201335 once-daily with PegIFN/RBV for 28 days. HCV-RNA was measured with Roche COBAS TaqMan. RESULTS: In treatment-naïve patients, median maximal viral load (VL) reductions during 14-day monotherapy were -3.0, -3.6, -3.7, and -4.2 log(10) for the 20, 48, 120, and 240 mg groups. VL breakthroughs (≥1 log(10) from nadir) were seen in most patients on monotherapy and were caused by NS3/4A variants (R155K, D168V) conferring in vitro resistance to BI201335. Adding PegIFN/RBV at Days 15-28 led to continuous viral load reductions in most patients. In treatment-experienced patients, treatment with BI201335 and PegIFN/RBV achieved VL<25 IU/ml at Day 28 in 3/6, 4/7, and 5/6 patients in the 48, 120, and 240 mg dose groups. VL breakthroughs were observed during triple combination in only 3/19 patients. BI201335 was generally well tolerated. Mild rash or photosensitivity was detected in four patients. Mild unconjugated hyperbilirubinemia was the only dose-dependent laboratory abnormality of BI201335. BI201335 elimination half-life supports once-daily dosing. CONCLUSIONS: BI201335 combined with PegIFN/RBV was well tolerated and induced strong antiviral responses. These results support further development of BI201335 in HCV genotype-1 patients.


Assuntos
Antivirais/farmacologia , Hepatite C/tratamento farmacológico , Oligopeptídeos/farmacologia , Inibidores de Proteases/farmacologia , Tiazóis/farmacologia , Adulto , Ácidos Aminoisobutíricos , Antivirais/administração & dosagem , Antivirais/efeitos adversos , Antivirais/farmacocinética , Proteínas de Transporte/antagonistas & inibidores , Método Duplo-Cego , Farmacorresistência Viral/genética , Feminino , Hepacivirus/efeitos dos fármacos , Hepacivirus/enzimologia , Hepacivirus/genética , Hepatite C/sangue , Hepatite C/virologia , Humanos , Interferon alfa-2 , Interferon-alfa/administração & dosagem , Peptídeos e Proteínas de Sinalização Intracelular , Leucina/análogos & derivados , Masculino , Pessoa de Meia-Idade , Oligopeptídeos/administração & dosagem , Oligopeptídeos/efeitos adversos , Oligopeptídeos/farmacocinética , Polietilenoglicóis/administração & dosagem , Prolina/análogos & derivados , Inibidores de Proteases/administração & dosagem , Inibidores de Proteases/efeitos adversos , Inibidores de Proteases/farmacocinética , Quinolinas , Proteínas Recombinantes , Ribavirina/administração & dosagem , Tiazóis/administração & dosagem , Tiazóis/efeitos adversos , Tiazóis/farmacocinética , Carga Viral/efeitos dos fármacos , Proteínas não Estruturais Virais/antagonistas & inibidores , Proteínas não Estruturais Virais/genética
20.
BMC Infect Dis ; 10: 303, 2010 Oct 22.
Artigo em Inglês | MEDLINE | ID: mdl-20969743

RESUMO

BACKGROUND: In France, it is estimated that 24% of HIV-infected patients are also infected with HCV. Longitudinal studies addressing clinical and public health questions related to HIV-HCV co-infection (HIV-HCV clinical progression and its determinants including genetic dimension, patients' experience with these two diseases and their treatments) are limited. The ANRS CO 13 HEPAVIH cohort was set up to explore these critical questions.To describe the cohort aims and organization, monitoring and data collection procedures, baseline characteristics, as well as follow-up findings to date. METHODS: Inclusion criteria in the cohort were: age > 18 years, HIV-1 infection, chronic hepatitis C virus (HCV) infection or sustained response to HCV treatment. A standardized medical questionnaire collecting socio-demographic, clinical, biological, therapeutic, histological, ultrasound and endoscopic data is administered at enrollment, then every six months for cirrhotic patients or yearly for non-cirrhotic patients. Also, a self-administered questionnaire documenting socio-behavioral data and adherence to HIV and/or HCV treatments is administered at enrollment and yearly thereafter. RESULTS: A total of 1,175 patients were included from January 2006 to December 2008. Their median age at enrollment was 45 years and 70.2% were male. The median CD4 cell count was 442 (IQR: 304-633) cells/µl and HIV RNA plasma viral load was undetectable in 68.8%. Most participants (71.6%) were on HAART. Among the 1,048 HIV-HCV chronically co-infected patients, HCV genotype 1 was predominant (56%) and cirrhosis was present in 25%. As of January, 2010, after a median follow-up of 16.7 months (IQR: 11.3-25.3), 13 new cases of decompensated cirrhosis, nine hepatocellular carcinomas and 20 HCV-related deaths were reported, resulting in a cumulative HCV-related severe event rate of 1.9/100 person-years (95% CI: 1.3-2.5). The rate of HCV-related severe events was higher in cirrhotic patients and those with a low CD4 cells count, but did not differ according to sex, age, alcohol consumption, CDC clinical stage or HCV status. CONCLUSION: The ANRS CO 13 HEPAVIH is a nation-wide cohort using a large network of HIV treatment, infectious diseases and internal medicine clinics in France, and thus is highly representative of the French population living with these two viruses and in care.


Assuntos
Infecções por HIV/complicações , Infecções por HIV/epidemiologia , Hepatite C Crônica/complicações , Hepatite C Crônica/epidemiologia , Adulto , Fármacos Anti-HIV/uso terapêutico , Terapia Antirretroviral de Alta Atividade , Contagem de Linfócito CD4 , Carcinoma Hepatocelular/epidemiologia , Progressão da Doença , Feminino , França/epidemiologia , Infecções por HIV/tratamento farmacológico , Infecções por HIV/patologia , HIV-1/isolamento & purificação , Hepacivirus/isolamento & purificação , Hepatite C Crônica/tratamento farmacológico , Hepatite C Crônica/patologia , Humanos , Neoplasias Hepáticas/epidemiologia , Estudos Longitudinais , Masculino , Adesão à Medicação , Pessoa de Meia-Idade , RNA Viral/sangue , Fatores de Risco , Inquéritos e Questionários , Carga Viral
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...