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Braz. j. biol ; 83: e244977, 2023. tab, graf
Article in English | MEDLINE, LILACS, VETINDEX | ID: biblio-1285621


Abstract Hepatitis C virus (HCV) is the serious global public health burden of liver disease. Approximately 170 million people in the world are infected with (HCV). In Pakistan, where the disease has high occurrence rate. The present study envisages an up-to-date prevalence of HCV and genotypic distribution in the general population of Mardan District, Khyber Pakhtunkhwa (KP), Pakistan. The blood samples from 6,538 individuals including 3,263 males and 3,275 females were analyzed for hepatitis C surface antigen by Immuno-chromatographic test (ICT), Enzyme-linked immunosorbent assay (ELISA), and reverse transcription-polymerase chain reaction (PCR). It was found that 396 (12.13%) out of 3263 individuals contained antibodies in their blood against HCV, while among the different age groups, the highest incidences of HCV antibodies were found in the 31-40 age group (11.01%). The ICT positive samples were further screened by nested PCR to determine the existence of active HCV-RNA. It was identified that 7.11% (3263) of the total population (6538) tested was positive, among which the 461 (14.07%) females possessed antibodies in their blood against HCV. Our data showed total HCV infection in the investigated population was 5.78%. Higher percentage of HCV prevalence was detected in males than females in the age group 31-40 and 41-50. To compare the prevalence of HCV genotypes age-wise in male and female genotype 3a was found most prevalent genotype followed by 1a, 2a and 3b, respectively.

Resumo O vírus da hepatite C (HCV) é o grave problema de saúde pública das doenças hepáticas. Aproximadamente 170 milhões de pessoas no mundo estão infectadas com HCV; no Paquistão, a doença tem alto índice de ocorrência. O presente estudo prevê uma prevalência atualizada do HCV e distribuição genotípica na população geral do distrito de Mardan, Khyber Pakhtunkhwa (KP), Paquistão. As amostras de sangue de 6.538 indivíduos, incluindo 3.263 homens e 3.275 mulheres, foram analisadas para o antígeno de superfície da hepatite C por teste imunocromatográfico (ICT), ensaio imunoenzimático (ELISA) e reação em cadeia da polimerase de transcrição reversa (PCR). Verificou-se que 396 (12,13%) de 3.263 indivíduos continham anticorpos no sangue contra o HCV, enquanto entre as diferentes faixas etárias as maiores incidências de anticorpos anti-HCV foram encontradas na faixa etária de 31 a 40 anos (11,01%). As amostras positivas para ICT foram posteriormente rastreadas por nested PCR para determinar a existência de HCV-RNA ativo. Identificou-se que 7,11% (3.263) do total da população (6.538) testada foram positivos, dentre os quais 461 (14,07%) mulheres possuíam anticorpos no sangue contra o HCV. Nossos dados mostraram que a infecção total pelo HCV na população investigada foi de 5,78%. Maior porcentagem de prevalência de HCV foi detectada em homens do que em mulheres nas faixas etárias de 31-40 e 41-50. Para comparar a prevalência de genótipos de HCV com relação à idade no genótipo masculino e feminino 3a foi encontrado o genótipo mais prevalente seguido por 1a, 2a e 3b, respectivamente.

Humans , Male , Female , Hepatitis C/epidemiology , Hepacivirus/genetics , Pakistan/epidemiology , Prevalence , Genotype
Rev. Assoc. Med. Bras. (1992) ; 67(10): 1480-1484, Oct. 2021. tab, graf
Article in English | LILACS | ID: biblio-1351429


SUMMARY OBJECTIVE: This study aimed to compare the serum samples found reactive (≥1-≤20 signal-to-cutoff ratio) with Elecsys antibodies to hepatitis C virus screening test with innogenetics-line immunassay hepatitis C Virus Score test and to determine the most appropriate threshold value for our country, since positive results close to the cutoff value cause serious problems in routine diagnostic laboratories. METHODS: Antibodies to hepatitis C virus-positive samples from 687 different patients were included in the study. Antibodies to hepatitis C virus antibody detection was performed using Elecsys antibodies to hepatitis C virus II kits (Roche Diagnostics, Germany), an electrochemiluminescence method based on the double-antigen sandwich principle, on the Cobas e601 analyzer (Roche Diagnostics) in accordance with the recommendations of the manufacturer. Samples that were initially identified as reactive were studied again. Samples with ≥1-≤20 signal-to-cutoff ratio reagents as a result of retest were included in the study to be validated with the third-Generation Line immunassay kit (innogenetics-line immunassay hepatitis C Virus, Belgium). RESULTS: A total of 687 samples with antibodies to hepatitis C virus positive and levels between 1-20 S/Co were found to be 56.1% negative, 14.8% indeterminate, and 29.1% positive by innogenetics-line immunassay hepatitis C Virus confirmation test. When the cases with indeterminate innogenetics-line immunassay hepatitis C Virus test results were accepted as positive, the signal-to-cutoff ratio value for antibodies to hepatitis C virus was determined as 5.8 (95% confidence interval) in distinguishing the innogenetics-line immunassay hepatitis C Virus negative and positive groups. CONCLUSION: It was concluded that with further studies on this subject, each country should determine the most appropriate S/Co value for its population, and thus it would be beneficial to reduce the problems such as test repetition and cost increase.

Humans , Hepatitis C/diagnosis , Hepatitis C Antibodies , Immunoassay , Sensitivity and Specificity , Hepacivirus/genetics
Chinese Journal of Hepatology ; (12): 319-325, 2021.
Article in Chinese | WPRIM | ID: wpr-879638


Viral hepatitis C is one of the important causes of liver cirrhosis and hepatocellular carcinoma. There are approximately 10 million cases of chronic hepatitis C virus (HCV) infection in China. However, over 70% of HCV infections of China have not yet been detected. According to the goal of "eliminating viral hepatitis as a public health threat by 2030" of the World Health Organization Viral Hepatitis Strategy, and the fact that medical institutions remain the main places for detecting HCV infections or patients in China at present, we established the " In-hospital process for viral hepatitis C screening and management in China (Draft)", with intention to promote the multidisciplinary collaboration and cooperation among the departments of clinic, laboratory, infection control, management, and etc. in medical institutions, and strengthen consultation and referral of patients with detected HCV antibodies and advance the diagnosis and antiviral treatment of patients with chronic hepatitis C.

Antiviral Agents/therapeutic use , China/epidemiology , Hepacivirus/genetics , Hepatitis C/epidemiology , Hepatitis C, Chronic/epidemiology , Hospitals , Humans , Liver Neoplasms/drug therapy
Rev. Soc. Bras. Med. Trop ; 54: e02532020, 2021. tab
Article in English | LILACS | ID: biblio-1155541


Abstract INTRODUCTION: We compared the hepatitis C virus (HCV) core antigen test with the HCV RNA assay to confirm anti-HCV results to determine whether the HCV core antigen test could be used as an alternative confirmatory test to the HCV RNA test. METHODS: Sera from 156 patients were analyzed for anti-HCV and HCV core antigen using a chemiluminescent microparticle immunoassay (Architect i2000SR) and for HCV RNA using the artus HCV RG RT-PCR Kit (QIAGEN) in a Rotor-Gene Q instrument. RESULTS: The diagnostic sensitivity, specificity, and positive and negative predictive values of the HCV core antigen assay compared to the HCV RNA test were 77.35%, 100%, 100%, and 89.38%, respectively. HCV core antigen levels showed a good correlation with those from HCV RNA quantification (r =0.872). However, 13 samples with a viral load of less than 4000 IU/mL were negative in the HCV core antigen assay. All gray-zone reactive samples were also RNA positive and were positive on repeat testing. CONCLUSIONS: The Architect HCV core antigen assay is highly specific and has an excellent positive predictive value. At the present level of sensitivity (77%), the study is still relevant in a low-income setting in which most of the HCV-positive patients would go undiagnosed, since HCV RNA testing is not available and/or not affordable. HCV core antigen testing can also help determine the true burden of infection in a population, considering the fact that almost 50% of the anti-HCV positive cases are negative for HCV RNA.

Humans , Hepatitis C/diagnosis , Hepacivirus/genetics , RNA, Viral , Sensitivity and Specificity , Hepatitis C Antigens , Hepatitis C Antibodies
Arq. gastroenterol ; 57(3): 267-271, July-Sept. 2020. tab, graf
Article in English | LILACS | ID: biblio-1131666


ABSTRACT BACKGROUND: Chronic hepatitis C still figures as an important cause of morbidity among the Brazilian population, and is closely associated with metabolic disturbances, including insulin resistance (IR), which can be evaluated by the Homeostatic Model Assessment (HOMA-IR). IR may entail lower sustained virologic response (SVR) on certain therapeutic regimens and faster progression to advanced hepatic fibrosis. With the arrival of the direct acting agents (DAA) in hepatitis C treatment, there is an increased need in observing the impact in patients' IR profile while using such therapies. OBJECTIVE: - 1) To compare the results of HOMA-IR in patients affected by chronic hepatitis C before treatment with DAA and 12 months after finishing it with SVR. 2) To evaluate the evolution of weight after curing chronic hepatitis C. METHODS: We included patients older than 18 from two tertiary care in Curitiba - PR, of both sexes, with chronic hepatitis C, treated with DAA, from July 2015 to September 2017. We also evaluated the patients' levels of fasting insulin, fasting glucose and glycated hemoglobin before starting treatment and 12 months after finishing it. We also used epidemiologic data, such as age, sex, hepatic fibrosis degree, body mass index, abdominal circumference, viral genotype and the presence of diabetes mellitus before and after treatment. IR was assessed before and after treatment and calculated by the HOMA-IR score. Insulin resistance was defined by a HOMA-IR greater than 2.5. We excluded patients who lost follow-up, those who did not achieve SRV and those who did not have a laboratory profile. The results of quantitative variables were described by means, medians, and standard deviations. P values <0.05 indicated statistical significance. RESULTS: We included 75 patients in this study, with a mean age of 55.2 years and 60% of males. Forty-three patients had advanced fibrosis. Twenty one (28%) had a previous diabetes mellitus diagnosis. We identified 31 (41.3%) patients with IR before antiviral treatment, and this number increased to 39 (52%) after 12 months of finishing treatment, according to HOMA-IR. There was no statistic difference between insulin, glucose and HOMA-IR measurements before and after curing hepatitis C. We observed a weight gain in patients shortly after curing hepatitis C, but this did not persist at the end of the study. We also had no significant difference in IR prevalence when viral genotype was concerned. CONCLUSION: In this study, there was no statistically significant difference between HOMA-IR results in patients before and 12 months after treatment for hepatitis C. Even though patients gained weight after the cure, this was not statistically significant after a year (P=0.131).

RESUMO CONTEXTO: A hepatite C crônica ainda figura como importante causa de morbimortalidade na população brasileira, e está associada a alterações metabólicas, incluindo a resistência insulínica (RI), que pode ser avaliada pelo índice HOMA-IR. A RI pode inclusive implicar em menores taxas de reposta virológica sustentada (RVS) em certos regimes terapêuticos e à uma mais rápida progressão para fibrose hepática avançada. Com o advento dos novos antivirais de ação direta (DAA) oferecidos para hepatite C, há crescente necessidade de observar o impacto dos mesmos no perfil de RI em pacientes submetidos à tais terapêuticas. OBJETIVO: - 1) Comparar os valores do HOMA-IR dos pacientes com hepatite C crônica antes do tratamento com os DAAS com os valores deste índice após 12 meses do término do tratamento com RVS. 2) Avaliar evolução do peso após obtenção da cura da hepatite C crônica. MÉTODOS: Foram incluídos pacientes maiores de 18 anos de dois serviços terciários de Curitiba - PR, de ambos os sexos, portadores de hepatite C crônica, com tratamento com os antivirais de ação direta, no período de julho de 2015 a setembro de 2017. Tais pacientes também foram submetidos a dosagem dos níveis de insulina de jejum, glicemia de jejum e hemoglobina glicada antes de iniciar o tratamento da hepatite C e até 12 meses após o término. Também foram utilizados dados como idade, sexo, grau de fibrose hepática, índice de massa corporal, circunferência abdominal, genótipo viral e presença de diabetes mellitus antes e depois do tratamento. A RI foi estimada antes e após 12 meses do término do tratamento e calculada pelo HOMA-IR. Os resultados de variáveis quantitativas foram descritos por médias, medianas, valores mínimos, valores máximos e desvios padrões. Valores de P<0,05 indicaram significância estatística. RESULTADOS: Foram incluídos 75 pacientes no estudo com média de idade de 55,2 anos, sendo 60% do sexo masculino. Destes pacientes, 43 tinham fibrose avançada. Vinte e um (28%) pacientes tinham o diagnóstico de diabetes mellitus. A RI foi observada em 31 (41,3%) pacientes antes do tratamento antiviral, sendo que este número aumentou para 39 (52%) de acordo com a dosagem do HOMA-IR 12 meses após o término do tratamento. Não houve diferença estatística entre os valores de insulina, glicemia e HOMA-IR antes e após a cura da hepatite. Houve um ganho de peso inicial após a obtenção da cura da hepatite C, mas que não se manteve ao final do estudo. CONCLUSÃO: Não foi vista diferença estatística significante entre os valores do HOMA-IR apresentados pelos pacientes portadores de hepatite C crônica antes do tratamento e 12 meses após a cura da doença. Embora tenha ocorrido ganho de peso após obtenção da cura da doença, este não se deu de forma estatisticamente significativa (P=0,131) ao final de um ano.

Humans , Male , Female , Insulin Resistance , Hepatitis C, Chronic/drug therapy , Antiviral Agents/therapeutic use , Antiviral Agents/pharmacology , Ribavirin/therapeutic use , Brazil , Treatment Outcome , Hepacivirus/drug effects , Hepacivirus/genetics , Middle Aged
Arq. gastroenterol ; 57(1): 39-44, Jan.-Feb. 2020. tab
Article in English | LILACS | ID: biblio-1098056


ABSTRACT BACKGROUND: Hepatitis C virus (HCV) infection is the most common hepatotropic viral infection affecting the patients on maintenance hemodialysis. Treatment of chronic HCV infection in stage 4 and 5 CKD includes a combination of elbasvir/grazoprevir and glecaprevir/pibrentasvir, which are not available in many countries. OBJECTIVE: Hence, we have conducted this study to look for the safety and efficacy of sofosbuvir combination therapy in this difficult to treat population. METHODS: We conducted a single-center, prospective, open-label study in which Stage 5 CKD patients on maintenance hemodialysis with HCV infection. Total of 18 patients was included. sofosbuvir with daclatasvir or ledipasvir was used according to genotype for 12 weeks. HCV RNA, genotype, transient elastography (TE) was considered for every patient. HCV RNA was quantified at 4th week, 12th week and 12 weeks post-treatment to look for sustained virologic response (SVR 12). RESULTS: Infection due to genotype 1 was seen in 12 (66.7%) patients followed by genotype 3 in 4 (22.3%) with each patient of genotype 2 and 5. The median value of HCV RNA was 2,35,000 IU/mL. On TE, all had liver stiffness of <9.4 KPa. All patients had HCV RNA of <15 IU/mL at 4th and 12th week of treatment and 12 weeks post-treatment. No significant change in hemoglobin, eGFR and liver stiffness was observed. CONCLUSION: Full dose sofosbuvir i.e. 400 mg, in combination with NS5A inhibitors daclatasvir or ledipasvir is found to be safe and effective in patients with end stage renal disease, who are on maintenance hemodialysis.

RESUMO CONTEXTO: A infecção pelo vírus da hepatite C (HCV) é a infecção viral hepática mais comum que afeta pacientes em hemodiálise de manutenção. O tratamento da infecção crônica por HCV no estágio 4 e 5 da doença renal crônica inclui uma combinação de elbasvir/grazoprevir e glecaprevir/pibrentasvir, que não estão disponíveis em muitos países. OBJETIVO: Portanto, realizamos este estudo para procurar a segurança e eficácia da terapia combinada de sofosbuvir nesta população de difícil tratamento. MÉTODOS: Realizamos um estudo de centro único, prospectivo e aberto, no qual pacientes com doença renal crônica em estágio 5 em hemodiálise de manutenção com infecção por HCV. Um total de 18 pacientes foi incluído. Sofosbuvir com daclatasvir ou ledipasvir foi usado de acordo com o genótipo por 12 semanas. O HCV RNA, genótipo, elastografia transitória foi considerado para cada paciente. O HCV RNA foi quantificado na 4ª semana, 12ª semana e 12 semanas após o tratamento para procurar uma resposta virológica sustentada. RESULTADOS: A infecção por genótipo 1 foi observada em 12 (66,7%) pacientes, seguido pelo genótipo 3 em 4 (22,3%), em um paciente do genótipo 2 e em outro, 5. O valor mediano do HCV RNA foi de 2.35.000 IU/mL. Na elastografia transitória, todos tinham rigidez hepática de <9.4 KPa. Todos os pacientes tinham RNA HCV <15 IU/mL na 4ª e 12ª semana de tratamento e 12 semanas após o tratamento. Não foi observada nenhuma alteração significativa na hemoglobina, eGFR e rigidez hepática. CONCLUSÃO: A dose completa sofosbuvir ou seja, 400 mg, em combinação com inibidores NS5A daclatasvir ou ledipasvir foi considerada segura e eficaz em pacientes com doença renal em estágio final, que estão em manutenção hemodiálise.

Humans , Male , Female , Adult , Antiviral Agents/administration & dosage , Hepatitis C, Chronic/drug therapy , 2-Pyridinylmethylsulfinylbenzimidazoles/administration & dosage , Fluorenes/administration & dosage , Sofosbuvir/administration & dosage , Imidazoles/administration & dosage , Severity of Illness Index , RNA, Viral , Prospective Studies , Renal Dialysis , Treatment Outcome , Hepacivirus/genetics , Drug Therapy, Combination , Sustained Virologic Response , Genotype , Middle Aged
Arq. gastroenterol ; 57(1): 45-49, Jan.-Feb. 2020. tab
Article in English | LILACS | ID: biblio-1098060


ABSTRACT BACKGROUND: Direct-acting antivirals have revolutionized hepatitis C treatment, also for patients with chronic kidney disease (CKD), but some controversy exists regarding the use of sofosbuvir (SOF) in patients with glomerular filtration rate (GFR) <30 mL/min. OBJECTIVE: To evaluate the efficacy and safety of these regimens for hepatitis C treatment of patients with CKD and after renal transplantation, as well as the impact of SOF on renal function in non-dialysis patients. METHODS: All patients with hepatitis C and CKD or renal transplant treated with direct-acting antivirals at a referral center in Brazil between January 2016 and August 2017 were included. Efficacy was evaluated based on viral load (HCV RNA) and a sustained virological response (SVR) consisting of undetectable RNA 12 and/or 24 weeks after the end of treatment (SVR12 and SVR24) was defined as cure. Safety was determined by adverse events and ribavirin, when combined, was administered in escalating doses to all patients with GFR <60 mL/min. The impact of SOF on renal function was determined by the measurement of baseline creatinine during and after the end of treatment and its increase was evaluated using the Acute Kidney Injury Network (AKIN) classification. RESULTS: A total of 241 patients (52.7% females) with a mean age of 60.72±10.47 years were included. The combination of SOF+daclatasvir was the predominant regimen in 75.6% of cases and anemia was present in 28% of patients who used ribavirin (P=0.04). The SVR12 and SVR24 rates were 99.3% and 97.1%, respectively. The treatment was well tolerated and there were no major clinically relevant adverse events, with the most prevalent being asthenia (57.7%), itching (41.1%), headache (40.7%), and irritability (40.2%). Among conservatively treated and renal transplant patients, oscillations of creatinine levels (AKIN I) were observed in 12.5% of cases during treatment and persisted in only 8.5% after the end of treatment. Of these, 2.0% had an initial GFR <30 mL/min and this percentage decreased to 1.1% after SOF use. Only 0.5% and 1.6% of the patients progressed to AKIN II and AKIN III elevation, respectively. CONCLUSION: The direct-acting antivirals were safe and efficacious in CKD patients treated with SOF-containing regimens, with the observation of high SVR rates, good tolerability and few severe adverse events. The combination with ribavirin increased the risk of anemia and the administration of escalating doses seems to be useful in patients with GFR <60 mL/min. In patients with GFR <30 mL/min, SOF had no significant renal impact, with serum creatinine returning to levels close to baseline after treatment.

RESUMO CONTEXTO: Os antivirais de ação direta revolucionaram o tratamento da hepatite C, inclusive para os pacientes com doença renal crônica (DRC), porém ainda há divergências no emprego do sofosbuvir (SOF) quando taxa de filtração glomerular (TFG) <30 mL/min. OBJETIVO: Avaliar a eficácia e segurança desses esquemas no tratamento da hepatite C em pacientes com DRC e pós-transplante renal, além de avaliar o impacto do SOF sobre a função renal dos não-dialíticos. MÉTODOS: Todos os pacientes com hepatite C e DRC ou transplante renal que realizaram tratamento com antivirais de ação direta em centro referenciado do Brasil no período de janeiro/2016 a agosto/2017 foram incluídos. A eficácia foi avaliada por meio da carga viral (HCV-RNA), considerando-se cura uma resposta virológica sustentada (RVS) com resultado indetectável após 12 e/ou 24 semanas do término do tratamento (RVS12 e RVS24). A segurança foi determinada pelos eventos adversos e a ribavirina, quando associada, foi introduzida de forma escalonada em todos os pacientes com TFG <60 mL/min. Para determinação do impacto do SOF sobre a função renal, foram observadas as dosagens de creatinina basal, durante e após término do tratamento com seu incremento avaliado por meio da classificação de AKIN (acute kidney injury network). RESULTADOS: Foram incluídos 241 pacientes, sendo 52,7% do sexo feminino, com média de idade de 60,72±10,47 anos. A associação de SOF+daclatasvir predominou em 75,6% dos casos e anemia esteve presente em 28% dos pacientes que utilizaram ribavirina (P=0,040). As taxas de RVS12 e RVS24 foram de 99,3% e 97,1%. O tratamento foi bem tolerado, com eventos adversos pouco relevantes, sendo os mais prevalentes: astenia (57,7%), prurido (41,1%), cefaleia (40,7%) e irritabilidade (40,2%). Entre os pacientes em tratamento conservador e transplantados renais, os valores de creatinina sofreram oscilações AKIN I em 12,5% dos casos, durante o tratamento, persistindo em apenas 8,5% da amostra após o término, dos quais 2,0% apresentavam TFG <30 mL/min inicialmente, com queda para 1,1% após uso do SOF. Apenas 0,5% e 1,6% evoluíram com elevação AKIN II e AKIN III. CONCLUSÃO: Os antivirais de ação direta foram seguros e eficazes em pacientes com DRC tratados com esquemas contendo SOF, apresentando altas taxas de RVS, boa tolerabilidade e poucos eventos adversos graves. A associação com ribavirina aumentou o risco de anemia, portanto sua introdução de forma escalonada parece ser útil nos pacientes com TFG <60 mL/min. Em pacientes com TFG <30 mL/min o SOF não apresentou impacto renal significativo, com creatinina sérica retornando a valores próximos ao basal após o tratamento.

Humans , Male , Female , Adult , Aged , Aged, 80 and over , Antiviral Agents/administration & dosage , Kidney Transplantation/adverse effects , Hepacivirus/genetics , Hepatitis C, Chronic/drug therapy , Ribavirin/administration & dosage , Treatment Outcome , Viral Load , Drug Therapy, Combination , Renal Insufficiency, Chronic/surgery , Simeprevir/administration & dosage , Sofosbuvir/administration & dosage , Sustained Virologic Response , Genotype , Glomerular Filtration Rate/genetics , Imidazoles/administration & dosage , Middle Aged
Rev. Soc. Bras. Med. Trop ; 53: e20190594, 2020. tab, graf
Article in English | ColecionaSUS, LILACS, ColecionaSUS, SES-SP | ID: biblio-1136866


Abstract INTRODUCTION We conducted a cost-utility analysis of available interferon-free treatments for patients with early-stage genotype 1 chronic hepatitis C based on a Brazilian public health system perspective. METHODS A Markov model was derived using a cohort of stage F0-F2 patients treated as recommended by the Brazilian national guidelines. RESULTS: Glecaprevir plus pibrentasvir was superior to all other treatments, followed by sofosbuvir plus velpatasvir. Sofosbuvir plus daclatasvir was identified as the least cost-effective option. CONCLUSIONS: The above findings were confirmed via probabilistic sensitivity analysis and the tested scenarios.

Humans , Antiviral Agents/economics , Hepacivirus/genetics , Hepatitis C, Chronic/economics , Hepatitis C, Chronic/drug therapy , Drug Therapy, Combination/economics , Antiviral Agents/administration & dosage , Cost-Benefit Analysis , Drug Therapy, Combination/methods , Genotype
Clin. biomed. res ; 40(1): 7-13, 2020.
Article in English | LILACS | ID: biblio-1115980


Introduction: Despite the emergence of new treatments for HCV genotype 3 (HCV G3), there is still a lack of data about this particular subgroup in Brazil. Our objective was to describe clinical and sociodemographic variables and treatment profile of HCV G3 Brazilian patients. Methods: This was a descriptive, retrospective study, performed in a specialized center for HCV treatment in the South Region of Brazil. Medical records of patients diagnosed with HCV G3 were reviewed to collect clinical, sociodemographic, and treatment information. Results: Participants included total of 564 patients, with a mean age of 59.3 years (SD = 10.5). Cirrhosis was present in 54.4% of patients. The most common coexisting conditions were systemic arterial hypertension (36.6%) and diabetes mellitus (30%). Regarding treatment, 25.2% of the patients were treatment-naïve and 74.8% were currently under treatment (11.6%) or had received a previous treatment (87%). The most frequent ongoing treatment was sofosbuvir + daclatasvir (± ribavirin) (87.8%). Of the 388 patients who had at least one previous treatment, 67% achieved sustained virologic response in the last treatment. Caucasian / white, non-obese, transplanted patients, those with longer time since diagnosis and with cirrhosis were more likely to receive treatment, according to multivariate analysis. Patients with hepatocellular carcinoma were 64.1% less likely to be on treatment during the study period than those without this condition; patients with chronic kidney disease were 2.91-fold more likely to have an interruption of treatment than those without this condition. Conclusion: This study describes a large sample of Brazilian patients with HCV G3. Treatment patterns were mainly influenced by the presence of HCV complications and comorbidities.(AU)

Humans , Male , Female , Adolescent , Adult , Middle Aged , Aged , Young Adult , Hepatitis C/virology , Hepacivirus/genetics , Genotype , Antiviral Agents/therapeutic use , Ribavirin/therapeutic use , Retrospective Studies , Interferons/therapeutic use , Hepatitis C/drug therapy , Hepatitis C/epidemiology , Carcinoma, Hepatocellular/drug therapy , Withholding Treatment , Sofosbuvir/therapeutic use , Liver Cirrhosis/drug therapy
Rev. Assoc. Med. Bras. (1992) ; 65(12): 1470-1475, Dec. 2019. tab, graf
Article in English | LILACS | ID: biblio-1057090


SUMMARY OBJECTIVE The recent development of direct-acting antiviral agents (DAAs) has dramatically changed the treatment of chronic hepatitis C, and interferon-based regimes have become a poor treatment choice in clinical practice. Today DAAs offer shorter, well-tolerated, highly effective curative therapies. This study aimed to evaluate the effectiveness and safety of DAAs in patients with end-stage renal disease and HCV genotype 1 infection in real clinical practice. METHODS Thirty-six patients who attended our clinic, were diagnosed with chronic hepatitis C (CHC), undergoing hemodialysis, and fulfilled the criteria of age >18 years, genotype 1 infection, with a detectable HCV RNA level were considered for the study. Patients with GT1a infection received OBV/PTV/r plus DSV plus RBV for 12 weeks; GT1b infected patients received this regimen without RBV for 12 weeks. RESULTS The study was conducted on 33 patients. The mean age was 52.30 ±13.77 years, and 70 % of them were male. By the fourth week of treatment, HCV RNA levels decreased below 15 IU/ml in all patients. Sustained virologic response (SVR) 12 rate was 100%. Nine patients had side effects during treatment. Of the patients with side effects, 89.9% were in group 1a and 11.1% in group 1b. CONCLUSION In this study, treatment with OBV/PTV/r and DSV with or without RBV resulted in high rates of sustained virologic response in HCV GT1-infected patients with end-stage renal disease (ESRD). SVR was achieved in all patients with few side effects.

RESUMO O recente desenvolvimento de agentes antivirais de ação direta (DAAs) mudou drasticamente o tratamento da hepatite C crônica, e os regimes livres de interferon tornaram-se pobres escolhas para tratamento na prática clínica. Hoje os DAAs oferecem terapias curativas mais curtas, bem toleradas e altamente eficazes. O objetivo deste estudo foi avaliar a eficácia e segurança dos DAAs em pacientes com doença renal em estágio terminal e infecção pelo genótipo 1 do HCV na prática clínica real. MÉTODOS Trinta e seis pacientes, que se inscreveram em nossa clínica com diagnóstico de hepatite C crônica (CHC), inclusive no programa de hemodiálise, e preencheram os critérios de idade >18 anos, foram considerados para infecção pelo genótipo 1 com nível detectável de RNA do HCV. Os pacientes com infecção por GT1a receberam OBV/PTV/r mais DSV mais RBV por 12 semanas. Os pacientes infectados com GT1b receberam este regime sem RBV por 12 semanas. RESULTADOS O estudo foi realizado em 33 pacientes. A idade média foi de 52,30±13,77 anos e 70% deles eram do sexo masculino. Na semana 4 do tratamento, os níveis de ARN do VHC diminuíram para menos de 15 UI/ml em todos os pacientes. A taxa de resposta virológica sustentada (RVS) 12 foi de 100%. Nove pacientes apresentaram efeitos colaterais durante o tratamento. Dos pacientes com efeitos colaterais, 89,9% estavam no grupo 1a e 11,1% no grupo 1b. CONCLUSÃO Neste estudo, o tratamento com OBV/PTV/r e DSV com ou sem RBV resultou em altas taxas de resposta virológica sustentada em pacientes infectados pelo VGC GT1 com doença renal em estágio final (ESRD). A RVS foi alcançada em todos os pacientes com poucos efeitos colaterais.

Humans , Male , Female , Adult , Aged , Young Adult , Antiviral Agents/therapeutic use , Hepatitis C, Chronic/drug therapy , Kidney Failure, Chronic/virology , Ribavirin/therapeutic use , Sulfonamides/therapeutic use , Time Factors , Uracil/analogs & derivatives , Uracil/therapeutic use , RNA, Viral/blood , Carbamates/therapeutic use , Treatment Outcome , Hepacivirus/drug effects , Hepacivirus/genetics , Statistics, Nonparametric , Ritonavir/therapeutic use , Hepatitis C, Chronic/virology , Macrocyclic Compounds/therapeutic use , Drug Therapy, Combination , Sustained Virologic Response , Genotype , Anilides/therapeutic use , Middle Aged
J. bras. nefrol ; 41(4): 539-549, Out.-Dec. 2019. tab, graf
Article in English | LILACS | ID: biblio-1056608


Abstract According to data from the last census of the Brazilian Society of Nephrology (SBN), the prevalence of hepatitis C virus (HCV) in Brazilian hemodialysis units (HU) is 3.3%, about three times higher than what is reported for the Brazilian general population. Often, professionals working in HU are faced with clinical situations that require rapid HCV diagnosis in order to avoid horizontal transmission within the units. On the other hand, thanks to the development of new antiviral drugs, the cure of patients with HCV, both in the general population and in patients with chronic kidney disease and the disease eradication, appear to be very feasible objectives to be achieved in the near future . In this scenario, SBN and the Brazilian Society of Hepatology present in this review article a proposal to approach HCV within HUs.

Resumo De acordo com os dados do último censo da Sociedade Brasileira de Nefrologia (SBN), a prevalência de portadores do vírus da hepatite C (HCV) nas unidades de hemodiálise (UH) no Brasil é de 3,3%, cerca de três vezes maior do que é observado na população geral brasileira. Muitas vezes, os profissionais que trabalham nas UH deparam-se com situações clínicas que demandam rápido diagnóstico do HCV, a fim de evitar uma transmissão horizontal dentro das unidades. Por outro lado, a cura dos pacientes portadores do HCV, tanto na população geral como na portadora de doença renal crônica e a erradicação da doença, em virtude do desenvolvimento de novas drogas antivirais, parecem ser objetivos bastante factíveis, a ser alcançados em futuro próximo. Nesse cenário, a SBN e a Sociedade Brasileira de Hepatologia apresentam neste artigo de revisão uma proposta de abordagem do HCV dentro das UH.

Humans , Renal Dialysis/statistics & numerical data , Hepatitis C/epidemiology , Disease Transmission, Infectious/prevention & control , Renal Insufficiency, Chronic/therapy , Antiviral Agents/therapeutic use , RNA Viruses/genetics , Brazil/epidemiology , Cross Infection/transmission , Prevalence , Hepatitis C/diagnosis , Hepatitis C/drug therapy , Hepacivirus/drug effects , Hepacivirus/genetics , Glomerular Filtration Rate/physiology , Nephrology/organization & administration , Nephrology/statistics & numerical data
Arq. gastroenterol ; 56(4): 344-350, Oct.-Dec. 2019. tab
Article in English | LILACS | ID: biblio-1055173


ABSTRACT BACKGROUND: Hepatitis B and C virus (HBV and HCV) are the two most common infections among human immunodeficiency virus (HIV)-infected patients. OBJECTIVE: To identify the frequency of HIV subtypes and HCV genotypes in HIV-coinfected patients. METHODS: A cross-sectional and retrospective study was carried out into two reference centers in Southern Brazil between January 1, 2002 and June 30, 2016. The Abbott Real Time HCV Genotype II system was used for routine diagnostics to determine the HCV genotype based on dual-target real-time PCR. Proviral HIV-1 RNA was extracted from serum samples and fragments of the pol gene were generated by PCR. The HIV-1 PT and RT gene sequences were submitted to Maximum Likelihood Phylogenetic analysis by collecting reference sequences from the HIV-1 group M subtype of the Los Alamos database. RESULTS: During the study period, 3340 patients with HIV were diagnosed at both referral centers, of which 4.97% (166/3340) had HBV and/or HCV coinfection. Seroprevalence of HIV-HBV, HIV-HCV and HIV-HBV-HCV was 37.4%, 58.4%, and 4.2%, respectively. HIV-HCV-coinfected patients had a lower median nadir CD4+ T-cell count when compared to HIV-HBV-coinfected patients (P=0.01). Among those coinfected with HCV, HCV-1 (HCV-1) and HCV-3 (HCV-3) genotypes were the most prevalent, being detected in 73.8% and 21.4%, respectively. Among the HCV-1 coinfected patients, 79.3% and 20.1% had subtypes 1a and 1b, respectively. HIV subtype B was the most prevalent in HIV-coinfected patients. There was no significant difference regarding nadir CD4+ T-cell count and HIV viral load when compared to coinfected with HCV-1 with HCV-3, as well as those co-infected with HCV-1a with HCV-1b. CONCLUSION: In the present study, a higher frequency of subtype B of HIV and HCV-1 were found in HIV-coinfected patients. Further larger-scale and long-term studies are needed to better understand the effect of HCV genotypes in HIV-infected patients.

RESUMO CONTEXTO: Os vírus das hepatites B e C (VHB e VHC) são os causadores das duas infecções mais comuns entre os pacientes infectados pelo vírus da imunodeficiência humana (HIV). OBJETIVO: Identificar a frequência dos subtipos do HIV e genótipos de VHC em pacientes coinfectados com HIV. MÉTODOS: Estudo transversal e retrospectivo realizado em dois centros de referência do Sul do Brasil, entre 1º de janeiro de 2002 e 30 de junho de 2016. O sistema Abbott Real Time HCV Genótipo II foi utilizado para diagnósticos de rotina para determinar o genótipo do HCV com base na PCR em tempo real de duplo alvo. O RNA viral do HIV-1 foi extraído de amostras de soro e fragmentos do gene pol foram obtidos por PCR. As sequências do gene PT e RT do HIV-1 foram submetidas à análise filogenética por máxima verossimilhança através da coleta de sequências de referência do subtipo M do grupo HIV-1 da base de dados Los Alamos. RESULTADOS: Durante o período do estudo, 3340 pacientes foram diagnosticados com HIV em ambos os centros de referência, dos quais 4,97% (166/3340) possuíam coinfecção com HBV e/ou HCV. A soroprevalência de HIV-HBV, HIV-HCV e HIV-HBV-HCV foi de 37,4%, 58,4% e 4,2%, respectivamente. Pacientes HIV-VHC possuíam menor nadir de células T CD4+ quando comparados aos pacientes HIV-VHB (P=0,01). Entre os pacientes HIV-VHC, os genótipos VHC-1 e VHC-3 foram os mais prevalentes, sendo encontrados em 73,8% e 21,4%, respectivamente. Entre os coinfectados com VHC-1, 79,3% e 20,1% tinham subtipos 1a e 1b, respectivamente. O subtipo B do HIV foi o mais prevalente em pacientes coinfectados. Não houve diferença significativa em relação nadir de células T CD4+ e carga viral do HIV quando comparadas os coinfectados com o VHC-1 com o VHC-3, assim como, os coinfectados com HCV-1a quando comparados com o HCV-1b. CONCLUSÃO: No presente estudo, uma maior frequência do subtipo B do HIV e do VHC-1 foram encontrados em pacientes coinfectados com HIV. Outros estudos em larga escala e a longo prazo são necessários para entender melhor o efeito dos genótipos do HCV em pacientes infectados pelo HIV.

Humans , Male , Female , Adult , HIV Infections/complications , Hepatitis C/virology , Hepacivirus/genetics , Brazil , Cross-Sectional Studies , Retrospective Studies , Hepatitis C/complications , Viral Load , Coinfection , Genotype , Middle Aged
Braz. j. infect. dis ; 23(3): 182-190, May-June 2019. tab, graf
Article in English | LILACS | ID: biblio-1019554


ABSTRACT Introduction and aim: Hepatitis C is a key challenge to public health in Brazil. The objective of this paper was to describe the Brazilian strategy for hepatitis C to meet the 2030 elimination goal proposed by World Health Organization (WHO). Methods: A mathematical modeling approach was used to estimate the current HCV-infected Brazilian population, and to evaluate the relative costs of two different scenarios to address HCV disease burden in Brazil: (1) if no further changes are made to the HCV treatment program in Brazil; (2) where the WHO targets for 2030 elimination are met through diagnosis and treatment efforts peaking before 2024. Results: An anti-HCV prevalence of 0.53% was calculated for the total population. It was estimated that the number of HCV-RNA+ individuals in Brazil in 2017 was 632,000 (0.31% of the population). Scale-up of treatment and diagnosis over time will be necessary in order to achieve WHO targets beginning in 2018. Direct costs (diagnostic, treatment and healthcare costs) are projected to increase significantly during the scale-up of treatment and diagnosis in the initial years of the intervention scenario, but then fall below the base case on an annual basis by 2025-2036, once HCV is eliminated, due to health sectors savings from the prevention of HCV liver-related morbidity and mortality. Conclusion: Achieving the WHO targets is technically feasible in Brazil with a scale-up of treatment and diagnosis over time, beginning in 2018. However, elimination of hepatitis C requires policy changes to substantially scale-up prevention, screening and treatment of HCV, together with public health advocacy to raise awareness among affected populations and healthcare providers.

Humans , Infant , Child, Preschool , Child , Adolescent , Adult , Middle Aged , Aged , Young Adult , Hepatitis C/prevention & control , Hepacivirus/genetics , Disease Eradication/economics , World Health Organization , Brazil/epidemiology , Incidence , Hepatitis C/economics , Hepatitis C/drug therapy , Hepatitis C/epidemiology , Disease Eradication/methods , Genotype , Models, Theoretical
Medicina (B.Aires) ; 79(1): 29-36, feb. 2019. tab
Article in English | LILACS | ID: biblio-1002584


There are few published real-world studies on hepatitis C in Latin America. This paper describes a cohort of Colombian subjects treated with direct-acting antiviral agents. A total of 195 patients from 5 hepatology centers in 4 Colombian cities were retrospectively studied. For each patient, serum biomarkers were obtained, and Child-Pugh, MELD, cirrhosis and fibrosis stage were calculated. Additionally, viral load was quantified at initiation, end of treatment and at 12 weeks of completion. Adverse effects were recorded. Patients with liver transplant were compared with non-transplanted patients in terms of serum biomarkers. The patients had received 9 different regimes. The most prevalent viral genotype was 1b (81.5%). Overall, 186 patients (95.4%) attained sustained virologic response. When comparing transplanted vs. non-transplanted patients, those in the non-transplanted group were more likely to have cirrhosis (52.6% vs. 12.5%, p = 0.0004). Pre-treatment viral load was higher in the transplant group (1 743 575 IQR = 1 038 062-4 252 719 vs. 345 769 IQR = 125 806-842 239; p < 0.0001) as well as ALT and AST levels (82.5 IQR 43.5-115.5 vs. 37.0 IQR = 24.7-73.3; p = 0.0009 and 70 IQR = 41-140 vs. 37 IQR = 24-68; p = 0.004 respectively). Adverse events were reported by 28.7% of the patients; asthenia (5.6%) was the most prevalent. Our results are comparable with those from other countries in terms of therapy and biomarkers. However, our cohort reported less adverse events. Further research is needed in the region.

Existen pocas publicaciones de evidencias del mundo real sobre hepatitis C en América Latina. En este estudio presentamos una cohorte colombiana de pacientes tratados con agentes antivirales de acción directa. Fueron analizados retrospectivamente 195 pacientes seleccionados en 5 centros de hepatología en 4 ciudades de Colombia. Dos tercios fueron mujeres y la mitad tenía ≥ 62 años. De cada uno se cuantificaron biomarcadores séricos, escala de Child-Pugh, MELD y grado de cirrosis y fibrosis. Se cuantificó carga viral al inicio, al final y a las 12 semanas después de completado el tratamiento. Se comparó la frecuencia de efectos adversos de medicamentos en trasplantados vs. no trasplantados. Los pacientes recibieron 9 esquemas de tratamiento diferentes. El genotipo más prevalente fue 1b (81.5%). La respuesta viral sostenida fue alcanzada por 186 pacientes (95.4%). El grupo no trasplantado tenía mayor frecuencia de cirrosis (52.6% vs. 12.5%, p = 0.0004). En los trasplantados, la carga viral pre-tratamiento era mayor (1 743 575 IQR = 1 038 062-4 252 719 vs. 345 769 IQR = 125 806-842 239; p = < 0.0001) igual que la ALT y la AST (82.5 IQR 43.5-115.5 vs. 37.0 IQR = 24.7-73.3; p = 0.0009 and 70 IQR = 41-140 vs. 37 IQR = 24-68; p = 0.004 respectivamente). El 28.7% refirió efectos adversos, siendo el más prevalente la astenia (5.6%). Nuestros resultados fueron comparables a los de estudios publicados en términos de terapia y biomarcadores pero nuestra cohorte presentó menos efectos adversos. Se requiere más investigación en la región.

Humans , Male , Middle Aged , Aged , Antiviral Agents/therapeutic use , Hepatitis C/drug therapy , RNA, Viral , Retrospective Studies , Liver Transplantation , Colombia , Hepacivirus/genetics , Statistics, Nonparametric , Viral Load , Drug Therapy, Combination , Sustained Virologic Response , Genotype
Rev. Soc. Bras. Med. Trop ; 51(6): 737-741, Nov.-Dec. 2018. graf
Article in English | LILACS | ID: biblio-977103


Abstract INTRODUCTION: Hepatitis C virus (HCV) and human immunodeficiency virus (HIV) have identical transmission routes, explaining the high prevalence of coinfections. The main aim of this study was to detect fluctuations in serological HCV levels in HIV patients. METHODS: We analyzed samples of 147 patients who attended an outpatient service that supports HIV/AIDS patients in São Paulo city. We also recruited 22 HCV-monoinfected patients who attended the Instituto Adolfo Lutz Laboratory in São Paulo city, to compare the test results. Serological testing of the blood samples was performed for the detection of HCV antibodies. The samples were then analyzed using real-time PCR for RNA viral quantification and sequencing. RESULTS We found that 13.6% of the study population was coinfected with HIV and HCV. In 20% of coinfected patients, fluctuations in serology results were detected in samples collected during the follow-up. No changes in anti-HCV serological markers were observed in HCV-monoinfected patients. An HCV viral load was detected in 9,5% of the samples collected from HIV patients. CONCLUSIONS: Our findings provide important clinical data to public health professionals and highlight the importance of periodic monitoring of HCV/HIV coinfected patients.

Humans , Male , Female , RNA, Viral/blood , HIV Infections/complications , Hepatitis C/complications , Hepatitis C Antibodies/blood , Hepatitis C/diagnosis , Hepacivirus/genetics , Hepacivirus/immunology , CD4 Lymphocyte Count , Viral Load , Coinfection , Real-Time Polymerase Chain Reaction , Genotype , Middle Aged
Braz. j. infect. dis ; 22(5): 418-423, Sept.-Oct. 2018. tab, graf
Article in English | LILACS | ID: biblio-974233


ABSTRACT The Brazilian Public Health Service provides freely αPEG-IFN to treat patients infected with HCV. The primary goal of HCV therapy is the long-term elimination of HCV from the blood to reduce the risk of HCV associated complications and death. Patient viremia affects the treatment duration and response, thus influencing clinical decisions. We developed a high-throughput method to perform the quantification of RNA hepatitis C virus (HCV) virus load in plasma samples to monitor patients under treatment. The method is based on a duplex detection, in a one-step real-time RT-PCR assay and it has been validated according to the rules established by the official Brazilian regulatory agency (ANVISA). This new method was compared to a commercial kit (Cobas/Taqman HCV Test v2.0 - Roche), showing virus load results with significant correlation between them (p= 0,012) using commercial and clinical panels. In addition, 611 samples from patients treated with peguilated alfa-interferon (αPEG-IFN) from different regions of Brazil were analyzed. Our one-step real-time RT-PCR assay demonstrated good performance in viral load measurement and in treatment course monitoring, with acceptable sensitivity and specificity values.

Humans , RNA, Viral/isolation & purification , Hepatitis C/virology , Hepacivirus/isolation & purification , Viral Load/methods , Real-Time Polymerase Chain Reaction/methods , Antiviral Agents/therapeutic use , Polyethylene Glycols/therapeutic use , Time Factors , Viremia , Recombinant Proteins/therapeutic use , Brazil , RNA, Viral/genetics , RNA, Viral/blood , Prospective Studies , Reproducibility of Results , Interferon-alpha/therapeutic use , Hepatitis C/drug therapy , Hepatitis C/blood , Hepacivirus/genetics , Genotyping Techniques , Genotype
Rev. Soc. Bras. Med. Trop ; 51(4): 508-512, July-Aug. 2018. tab, graf
Article in English | LILACS | ID: biblio-1041479


Abstract INTRODUCTION This study reports the genotype prevalence of hepatitis C virus (HCV) in Pará, Brazil. METHODS: A retrospective cross-sectional study was conducted on 344 plasma samples sent to the Lacen-Pará for diagnostics by molecular techniques. RESULTS: HCV genotypes identified in the different regions of Pará were 1b (47.7%), 3 (23.3%), 1a (18%), and 2 (4.4%). Genotype 1 occurred in 41.6% of men and 30.8% of women in the 18-86-year-old group. CONCLUSIONS: Genotype 1 is the most predominant in Pará, which reinforces the idea of its relationship with late-diagnosed chronic infection.

Humans , Male , Female , Adolescent , Adult , Aged , Aged, 80 and over , Young Adult , Hepacivirus/genetics , Hepatitis C, Chronic/epidemiology , Brazil/epidemiology , RNA, Viral/genetics , Prevalence , Cross-Sectional Studies , Retrospective Studies , Hepatitis C, Chronic/virology , Genotype , Middle Aged
Braz. j. infect. dis ; 22(4): 317-322, July-Aug. 2018. tab
Article in English | LILACS | ID: biblio-974227


ABSTRACT Introduction Chronic hepatitis C virus infection is one of the major causes of cirrhosis, hepatocellular carcinoma and liver transplantation. Treatment using direct-acting antivirals has revolutionized the treatment of hepatitis C virus, increasing long-term prognosis after cure. The goal of the present study was to evaluate the effectiveness of direct-acting antivirals in a Public Health System in southern Brazil. Methods A retrospective study evaluated all patients with chronic hepatitis C virus infection who underwent treatment at one center of the Public Health Department of the State of Rio Grande do Sul - Brazil, according to the Brazilian Clinical Protocol and Therapeutic Guidelines. The effectiveness was assessed in terms sustained virological response 12 weeks after the end of treatment. Results A total of 1002 patients who were treated for chronic hepatitis C virus infection were evaluated. The mean age was 58.6 years, 557 patients (55.6%) were male and 550 (54.9%) were cirrhotic. Overall sustained virological response was observed in 936 (93.4%) patients. There was a difference in sustained virological response rate varied according to sex, 91.6% in men and 95.7% in women (p= 0.009), length of treatment in genotype 1, 92.7% with 12 weeks and 99.1 with 24 weeks (p= 0.040), and genotype, 94.7% in genotype 1, 91.7% in genotype 2, and 91.4% in genotype 3 (p= 0.047). Conclusion The treatment of chronic hepatitis C virus infection for genotypes 1, 2 or 3 with the therapeutic regimens established by the Brazilian guidelines showed high rates of SVR, even in cirrhotic patients.

Humans , Male , Female , Adult , Middle Aged , Aged , Antiviral Agents/therapeutic use , Public Health/statistics & numerical data , Hepatitis C, Chronic/drug therapy , Sustained Virologic Response , Ribavirin/therapeutic use , Brazil , Retrospective Studies , Practice Guidelines as Topic , Hepacivirus/genetics , Viral Load , Hepatitis C, Chronic/genetics , Drug Therapy, Combination , Simeprevir/therapeutic use , Sofosbuvir/therapeutic use , Genotype , Imidazoles/therapeutic use , Liver Cirrhosis
Arq. gastroenterol ; 55(2): 184-187, Apr.-June 2018. tab
Article in English | LILACS | ID: biblio-950515


ABSTRACT BACKGROUND: The interaction between serum lipids and C virus infection is well known, as are serum lipid levels in the Peg-IFN / RBV-based treatment. However, with direct action antivirals (DAAs) this behavior is still unclear. OBJECTIVE: To compare serum lipids levels between patients treated with Peg-IFN/RBV and DAAs and to evaluate lipids in sustained virological response (SVR) with DAAs. METHODS: Retro prospective study comparing the behavior of total cholesterol (TC), low-density lipoprotein (LDL) and triglycerides (TG) serum levels during treatment with DAAs (G-DAAs) and a control historic group Peg-IFN/RBV (G-PR). Coorte, prospective study, to study the behavior of lipids in the SVR with DAAs. Data were collected at the beginning of treatment (baseline: t-base) and at week 12 of treatment (t-12) for G-DAAs and at week 24 (t-24) for G-PR, groups. In the cohort evaluation, the samples at t-base and at week 12 after the end of treatment (t-SVR). Delta lipids: difference between lipids in t-12 / t-24 minus t-base for comparison between G-PR and G-AADs groups and t-SVR minus t-base for lipid analysis in SVR. Analysis with Kruskal Wallis and Wilcoxon tests to compare the delta lipids of the groups. The P value was 0.05. RESULTS: In the assessment between G-PR and G-DAAs groups, we included 63 and 121 patients, respectively. The groups did not differ one from the other (BMI, sex, genotype, fibrosis, total cholesterol, LDL, and TG) except by age (50.38±10.44 vs 56±9.69, P=0.0006). We observed a decrease in levels of TC and LDL and an increase in TG, in G-PR, and in G-DAAs the opposite (Δ TC -13.9±34.5 vs 4.12±34.3 P=0.0005, Δ LDL -7.16±32 vs 10.13±29.92, P=0.003, Δ TG 4.51±53.7 vs -8.24±49.93, P=0.0025). In the coorte analysis, we included 102 patients, 70% men and 56% F4, 95 of them reached SVR. We observed an increase of TC and LDL and a decrease of TG in both groups (SVR and non SVR), with no statistical difference (Δ TC P=0.68; Δ LDL P=0.69; Δ TG P=0.43). We did not find significant difference in delta evaluation by genotype 1 and 3 (Δ TC +29.7±40.2 vs +13.4±30.3, P=0.06; Δ LDL +21.4±28.6 vs +16.6±31.3, P=0.41; Δ TG -3.6±60.6 vs -0.7±40, P=0.91). CONCLUSION: Serum lipids level differed during treatment with Peg-IFN and DAAs. Treatment with DAAs was associated with an increase of TC and LDL and a decrease of TG, independently of SVR.

RESUMO CONTEXTO: A interação entre lípides séricos e infecção pelo vírus C já é bem conhecida, assim como o comportamento dos níveis séricos daqueles durante o tratamento com Peg-IFN/RBV. No entanto, com antivirais de ação direta (AADs) este comportamento ainda não está claro. OBJETIVO: Comparar os níveis séricos de lípides entre pacientes tratados com Peg-IFN/RBV e AADs e avaliar os lípides na resposta virológica sustentada (RVS) com AADs. MÉTODOS: Estudo retro prospectivo comparando o comportamento dos níveis séricos de colesterol total (CT), lipoproteínas de baixa densidade (LDL) e triglicérides (TG) durante o tratamento com AADs (G-AADs) e um grupo histórico de controle Peg-IFN/RBV (G-PR). Coorte, estudo prospectivo, para estudar o comportamento dos lípides na RVS com AADs. Os dados foram coletados no início do tratamento (baseline: t-base) e na décima segunda semana de tratamento (t-12) para G-AADs e na vigésima quarta semana de tratamento (t-24) para G-PR para a análise comparativa entre os dois grupos. Na avaliação de coorte, as amostras foram coletadas no t-base e na décima segunda semana após o término do tratamento (t-RVS). Delta lípides: diferença entre lípides em t-12/t-24 menos t-base para comparação entre os grupos G-PR e G-AADs e t-RVS menos t-base para análise de lípides na RVS. A análise estatística descritiva, os testes não paramétricos de Kruskal Wallis e Wilcoxon foram utilizados para comparar o delta lípides dos grupos. O valor de P considerado foi de 0,05. RESULTADOS: Na avaliação entre os grupos G-PR e G-AADs, incluímos 63 e 121 pacientes, respectivamente. Os grupos não diferiram um do outro (IMC, sexo, genótipo, fibrose, colesterol total, LDL e TG), exceto por idade (50,38±10,44 vs 56±9,69, P=0,0006). Observamos uma diminuição nos níveis de CT e LDL e um aumento de TG no G-PR, no G-AADs ocorreu o oposto (Δ CT -13,9±34,5 vs 4,12±34,3 P=0,0005, Δ LDL -7,16±32 vs 10,13±29,92, P=0,003, Δ TG 4,51±53,7 vs -8,24±49,93, P=0,0025). Na análise de coorte, foram incluídos 102 pacientes, 70% homens e 56% F4. Noventa e cinco deles atingiram a RVS. Observamos um aumento de CT e LDL e uma diminuição de TG em ambos os grupos (RVS e não RVS), sem diferença estatística (Δ CT P=0,68; Δ LDL P=0,69; Δ TG P=0,43). Não encontramos diferença significativa na avaliação dos deltas pelos genótipos 1 e 3 (Δ CT +29,7±40,2 vs +13,4±30,3, P=0,06; Δ LDL + 21,4±28,6 vs +16,6±31,3, P=0,41; Δ TG -3,6±60,6 vs -0,7±40, P=0,91). CONCLUSÃO: O nível de lípides séricos diferiu durante o tratamento com Peg-IFN/RBV e AADs. O tratamento com AADs foi associado a um aumento de CT e LDL e uma diminuição de TG, independentemente da RVS.

Humans , Male , Female , Adult , Antiviral Agents/therapeutic use , Hepatitis C/drug therapy , Hepacivirus/genetics , Sustained Virologic Response , Lipids/blood , Antiviral Agents/pharmacology , Polyethylene Glycols/therapeutic use , Ribavirin/therapeutic use , Triglycerides/blood , Recombinant Proteins/therapeutic use , Prospective Studies , Interferon-alpha/therapeutic use , Hepatitis C/virology , Hepacivirus/drug effects , Drug Therapy, Combination , Genotype , Cholesterol, LDL/blood , Middle Aged
Arq. gastroenterol ; 55(2): 179-183, Apr.-June 2018. tab
Article in English | LILACS | ID: biblio-950510


ABSTRACT BACKGROUND: Insulin resistance and diabetes mellitus are common extrahepatic manifestations of chronic hepatitis C (HCV). Insulin resistance assessed by HOMA-IR is associated with low rates of sustained virological response, especially in HCV genotype 1 positive patients treated with peginterferon/ribavirin. The effect of insulin resistance on sustained virologic response in HCV genotype 3 positive patients who were treated with peginterferon/ribavirin still remains unclear. OBJECTIVE: To evaluate the impact of insulin resistance on sustained virological response in HCV genotype 3 patients treated with peginterferon/ribavirin. METHODS: A retrospective multicenter study was performed to evaluate the impact of insulin resistance on sustained virological response in non-diabetic HCV genotype 3 positive patients treated with peginterferon and ribavirin. A total of 200 HCV genotype 3 positive patients were enrolled in the study. All patients were non-diabetic. Each patient had a HOMA-IR value measured before the initiation of HCV treatment with peginterferon/ribavirin. The treatment duration was at least 24 weeks. The HOMA-IR cut-off was defined in the study as ≥2.5 due to the coefficient of correlation with sustained virological response of 0.202 (P=0.004). RESULTS: Univariate analysis showed that age, aspartate aminotransferase, platelets, stage of fibrosis and HOMA-IR were predictors of sustained virological response. However multivariate analysis showed advanced fibrosis [OR=2.01 (95%CI: 0.986-4.119) P=0.05] and age [OR=1.06 (95%CI: 1.022-1.110) P=0.002] as negative predictors of sustained virological response. CONCLUSION: In this retrospective multicenter study of non-diabetic HCV genotype 3 positive patients, insulin resistance was not associated with the sustained virological response in patients who were treated with peginterferon/ribavirin.

RESUMO CONTEXTO: A resistência insulínica e o diabetes mellitus são frequentes manifestações extra-hepáticas da hepatite C crônica. A resistência insulínica medida pelo HOMA-IR está associada a uma baixa taxa de resposta virológica sustentada, principalmente em pacientes portadores de hepatite C crônica genótipo 1 tratados com peginterferon/ribavirina. Em relação aos pacientes portadores de hepatite C crônica genótipo 3 tratados com peginterferon/ribavirina, a influência da resistência insulínica na resposta virológica sustentada ainda não está esclarecida. OBJETIVO: Avaliar a influência da resistência insulínica na resposta virológica sustentada em pacientes portadores de hepatite C crônica genótipo 3. MÉTODOS: Estudo multicêntrico retrospectivo foi realizado para avaliar a influência da resistência insulínica na resposta virológica sustentada em pacientes não-diabéticos portadores de hepatite C crônica genótipo 3 tratados com peginterferon/ribavirina. Um total de 200 pacientes portadores de hepatite C crônica genótipo 3 foi incluído no estudo. Todos os pacientes eram não diabéticos e apresentavam medida de HOMA-IR antes do início do tratamento da hepatite C crônica com peginterferon/ribavirina. A duração do tratamento foi de pelo menos 24 semanas. O cut-off de HOMA-IR foi definido para este estudo como ≥2,5 devido ao coeficiente de correlação com a resposta virológica sustentada de 0,202 (P=0,004). RESULTADOS: Na análise univariada, idade, aspartato aminotransferase, plaquetas, grau de fibrose e HOMA-IR foram preditores de resposta virológica sustentada. No entanto, na análise multivariada, apenas fibrose avançada [OR=2,01 (95%IC: 0,986-4,119) P=0,05] e idade [OR=1,06 (95%IC: 1,022-1,110) P=0,002] estavam relacionados como preditores negativo de resposta virológica sustentada. CONCLUSÃO: Neste estudo multicêntrico, retrospectivo, em pacientes não diabéticos portadores de hepatite C genótipo 3, a resistência insulínica não estava associada à resposta virológica sustentada em pacientes tratados com peginterferon/ribavirina.

Humans , Male , Female , Antiviral Agents/therapeutic use , Ribavirin/therapeutic use , Insulin Resistance/physiology , Hepacivirus/genetics , Hepatitis C, Chronic/drug therapy , Retrospective Studies , Interferon-alpha/therapeutic use , Viral Load , Hepatitis C, Chronic/virology , Drug Therapy, Combination , Genotype , Homeostasis/physiology