Search results for "poly(ethylene glycol)"

showing 10 items of 337 documents

Vitamin D levels and IL28B polymorphisms are related to rapid virological response to standard of care in genotype 1 chronic hepatitis C.

2011

Background Genotype 1 (G1) chronic hepatitis C (CHC) patients achieving a rapid virological response (RVR) on pegylated interferon (PEG-IFN) plus ribavirin have a high chance of sustained virological response (SVR), influenced by IL28B status, viral load, fibrosis and insulin resistance. We assessed whether 25-hydroxyvitamin D (25[OH]D) serum levels are linked to RVR and can be used together with IL28B to construct a pretreatment model to predict RVR. Methods A total of 117 consecutive patients with G1 CHC were evaluated by biopsy and anthropometric and metabolic measurements. 25(OH)D serum levels were measured by HPLC. IL28B rs12979860 and rs8099917 polymorphisms were also evaluated. All p…

AdultMaleStandard of careGenotypeHepacivirusAntiviral AgentsPolymorphism Single NucleotidePolyethylene GlycolsVirological responsechemistry.chemical_compoundChronic hepatitisPegylated interferonRisk FactorsGenotypeVitamin D and neurologyMedicineHumansPharmacology (medical)Vitamin DPharmacologybusiness.industryRibavirinInterleukinsInterferon-alphaStandard of CareHepatitis C ChronicMiddle AgedViral LoadRecombinant ProteinsInfectious DiseasesTreatment OutcomechemistryImmunologyFemaleInterferonsbusinessmedicine.drugAntiviral therapy
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Peginterferon alfa-2b plus weight-based ribavirin for 24 weeks in patients with chronic hepatitis C virus genotype 1 with low viral load who achieve …

2012

. In chronic hepatitis C (CHC), treatment duration may be individualized according to time to first undetectable hepatitis C virus (HCV) RNA, with patients who attain undetectable HCV RNA early in treatment being candidates for shorter regimens. The aim of this study was to determine the relapse rate in patients with CHC genotype (G) 1 infection and low baseline viral load who achieved undetectable HCV RNA by week 4 [rapid virologic response (RVR)] when treated for 24 weeks. This was an open-label, multicentre, noninterventional study. Adult patients with G1 CHC infection and baseline viral load <600,000 IU/mL who attained RVR were treated with peginterferon alfa-2b (1.5 mu g/kg/week) plus …

AdultMaleTime FactorsAdolescentGenotyperibavirinHepacivirusInterferon alpha-2Antiviral AgentsPolyethylene GlycolsYoung AdultRecurrenceRibavirinHumanspeginterferonhepatitis C virus genotyperelapseInterferon-alphaHepatitis C ChronicMiddle AgedViral LoadRecombinant Proteinsviral loadTreatment OutcomeHCVFemale
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Quality of life in melanoma patients during adjuvant treatment with pegylated interferon-α2b: patients’ and doctors’ views

2011

Treatment of malignant melanoma with IFN-α has been associated with significant side-effects. The aim of this retrospective monocentric non-randomized study was first to evaluate the impact on quality of life (QOL) in 30 melanoma patients treated with once weekly 2 μg/kg PEG-IFN-α2b for 18 months, and second to examine whether there is a difference in patients' and physicians' perception of QOL. Data on QOL were collected by means of the EORTC QLQ-C30 questionnaire completed by the patient before consultation at baseline and every three months during treatment. A second questionnaire was filled out independently by the physician, based on the consultation and patient file. All data were rou…

AdultMalemedicine.medical_specialtyAdolescentEvery Three Monthsmedicine.medical_treatmentOnce weeklyDermatologyInterferon alpha-2Antiviral AgentsPolyethylene GlycolsYoung AdultAmbulatory careQuality of lifePegylated interferonHumansMedicineIn patientMelanomaAgedRetrospective StudiesAged 80 and overbusiness.industryMelanomaInterferon-alphaMiddle Agedmedicine.diseaseRecombinant ProteinshumanitiesChemotherapy AdjuvantQuality of LifePhysical therapyFemalebusinessAdjuvantmedicine.drugEuropean Journal of Dermatology
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Individualized treatment with combination of Peg-interferon alpha 2b and ribavirin in patients infected with HCV genotype 3.

2010

The benefit of individualizing treatment for patients with genotype 3 HCV infection on the basis of viral clearance at week 4 (wk4-R) has not been firmly established.Four hundred and fourteen patients received Peg-interferon alpha-2b plus 1000-1200 mg of ribavirin daily according with body weightor75 kg. Patients were randomized to standard 24 weeks (Std24) or to a 12 or 36 weeks variable treatment duration (Var12/36). In the variable treatment arm, patients with or without wk4-R were allocated to either 12 or 36 weeks duration.At treatment week 4, HCV RNA was undetectable in 262 patients (63.3%), 136 in the Std24, and 126 in the Var12/36 group (p=0.41). In patients with wk4-R, end-of-treat…

AdultMalemedicine.medical_specialtyAdolescentGenotypeAlpha (ethology)Alpha interferonHepacivirusInterferon alpha-2GastroenterologyAntiviral AgentsPolyethylene Glycolschemistry.chemical_compoundYoung AdultPharmacotherapyInternal medicineGenotypeRibavirinmedicineHumansIn patientPrecision MedicineAgedHepatologybusiness.industryStomachRibavirinInterferon-alphaHepatitis CHepatitis C ChronicMiddle Agedmedicine.diseaseRecombinant ProteinsSurgerymedicine.anatomical_structurechemistryRNA ViralFemalebusinessJournal of hepatology
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Unchanged plasma levels of dimethylarginines and nitric oxide in chronic hepatitis C.

2008

Previous studies have shown that asymmetric dimethylarginine (ADMA), symmetric dimethylarginine (SDMA) and nitric oxide (NO) play a prominent role in liver dysfunction. The objective of this study was to determine whether plasma levels of ADMA, SDMA and NO are altered in patients with chronic hepatitis C.Plasma levels of ADMA, SDMA and NO (nitrite plus nitrate) were measured in 22 patients with chronic hepatitis C and 24 patients with sustained virologic response after treatment with peginterferon plus ribavirin. Seven healthy volunteers served as controls.Plasma levels of ADMA, SDMA and NO were not significantly different between groups: chronic hepatitis C, ADMA 0.55+/-0.06, SDMA 0.22+/-0…

AdultMalemedicine.medical_specialtyArginineInterferon alpha-2ArginineNitric OxideAntiviral AgentsNitric oxidePolyethylene Glycolschemistry.chemical_compoundInterferonInternal medicineBlood plasmaRibavirinMedicineHumansbusiness.industryRibavirinGastroenterologyCase-control studyInterferon-alphaHepatitis CHepatitis C ChronicMiddle Agedmedicine.diseaseRecombinant ProteinsEndocrinologychemistryCase-Control StudiesFemalebusinessAsymmetric dimethylargininemedicine.drugScandinavian journal of gastroenterology
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Peginterferon alfa-2b plus ribavirin for naïve patients with genotype 1 chronic hepatitis C: a randomized controlled trial

2004

We assessed the effectiveness and safety of an induction dose of peginterferon alfa-2b (PEG-IFN) plus ribavirin for initial treatment of patients with genotype 1 chronic HCV infection in a randomized, controlled, multicenter trial.Three hundred and eleven naïve patients infected with genotype 1 and chronic hepatitis were randomly assigned to 48-week treatment with PEG-IFN once weekly (80-100 micrograms depending on body weight for 8 weeks, followed by 50 micrograms for the next 40 weeks), or standard interferon alfa-2b (IFN) 6 million units on alternate days, both in combination with ribavirin (1000-1200 mg/day).PEG-IFN plus ribavirin significantly increased sustained virological response (…

AdultMalemedicine.medical_specialtyGenotypeCombination therapyFibrosiHepacivirusAlpha interferonHepacivirusInterferon alpha-2Antiviral AgentsGastroenterologyPolyethylene Glycolslaw.inventionchemistry.chemical_compoundRandomized controlled triallawMulticenter trialInternal medicineRibavirinmedicineHumansCombination therapyHepatologybiologybusiness.industryRibavirinfibrosisInterferon-alphavirus diseasesDrug ToleranceHepatitis CHepatitis C ChronicMiddle Agedbiology.organism_classificationmedicine.diseaseRecombinant Proteinsdigestive system diseasesMulticenter trial; Combination therapy; fibrosischemistryMulticenter trialImmunologyPeginterferon alfa-2bFemaleSafetybusinessmedicine.drugJournal of Hepatology
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Early discontinuation of ribavirin in HCV-2 and HCV-3 patients responding to Peg-interferon alpha-2a and ribavirin

2008

Guidelines for the treatment of patients infected with hepatitis C virus of genotypes 2 and 3 (HCV-2 and HCV-3, respectively) recommend a 24-week course of Peg-interferon (Peg-IFN) alpha-2a combined with ribavirin, despite 50% of patients in registration trials attaining a sustained virologic response (SVR) following Peg-IFN alpha-2a monotherapy. The aim of this study was to delineate patient characteristics that might help to identify individuals likely to benefit from ribavirin discontinuation. One hundred and forty-four HCV-2- and HCV-3-infected patients initiated Peg-IFN alpha-2a (180 microg/week) and ribavirin (1000 or 1200 mg/day); those with viral clearance at week 4 were randomized …

AdultMalemedicine.medical_specialtyGenotypeCombination therapyHepatitis C virusHepacivirusInterferon alpha-2medicine.disease_causeChronic hepatitis CAntiviral AgentsPolyethylene Glycolschemistry.chemical_compoundVirologyInternal medicineRibavirinmedicineHumansRapid Virologic ResponseHepatologyPeg-interferonbusiness.industryRibavirinInterferon-alphavirus diseasesHepatitis CMiddle AgedViral Loadmedicine.diseaseHepatitis CRecombinant Proteinsdigestive system diseasesDiscontinuationClinical trialTreatment OutcomeInfectious DiseasesWithholding TreatmentchemistryImmunologyChronic hepatitis C; Clinical trial; Peg-interferon; Ribavirin;FemaleViral hepatitisbusinessViral load
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Individualized treatment duration for hepatitis C genotype 1 patients: a randomized controlled trial

2008

It was hypothesized that in hepatitis C virus (HCV) genotype 1 patients, variable treatment duration individualized by first undetectable HCV RNA is as effective as standard 48-week treatment. Patients (n_696) received peginterferon alfa-2a, 180 mg/week, or peginterferon alfa-2b, 1.5 mg/kg/week, plus ribavirin, 1000-1200 mg/day, for 48 weeks (standard, n _237) or for 24, 48, or 72 weeks if HCV-RNA–negative at weeks 4, 8, or 12, respectively (variable, n _ 459). Sustained virologic response (SVR) was achieved in 45.1% [95% confidence interval (CI) 38.8-51.4] of the patients in the standard group and in 48.8% (CI 44.2-53.3) of the patients in the variable group (P _ 0.37). The percentages of …

AdultMalemedicine.medical_specialtyGenotypeHepatitis C virusAlpha interferonHepacivirusInterferon alpha-2medicine.disease_causeAntiviral AgentsGastroenterologyDrug Administration SchedulePolyethylene Glycolslaw.inventionchemistry.chemical_compoundRandomized controlled triallawInternal medicineRibavirinmedicineHumansProspective StudiesRapid Virologic Responsegenotype 1Hepatologybusiness.industryRibavirinStandard treatmentInterferon-alphavirus diseasesHepatitis CMiddle Agedmedicine.diseaseRecombinant Proteinsdigestive system diseasesConfidence intervalSurgeryTreatment OutcomechemistryRNA ViralDrug Therapy CombinationFemalehepatitis Cbusiness
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The HEP-NET B/C co-infection trial: A prospective multicenter study to investigate the efficacy of pegylated interferon-α2b and ribavirin in patients…

2008

Background/Aims The efficacy of pegylated interferon alpha and ribavirin in HBV/HCV co-infected patients is unknown. Methods Nineteen patients with chronic HBV/HCV co-infection (HBsAg and HCV-RNA positive; 10 HCV-genotype 1; 9 HCV-genotype 2 or 3) were included in this prospective multicenter pilot study. Baseline HBV-DNA was negative in 13 individuals. All patients received weight-adjusted PEG-IFN-α2b and ribavirin for 48 weeks. Results In the intent-to-treat analysis, a biochemical and an HCV-RNA response were observed in 12 and 14 patients, respectively (63% and 74%). At the end of the treatment as well as at the end of the follow-up the HCV-RNA response was 93% (14/15) in patients adher…

AdultMalemedicine.medical_specialtyHBsAgCombination therapyHepatitis C virusInterferon alpha-2medicine.disease_causeAntiviral AgentsGastroenterologyPolyethylene Glycolschemistry.chemical_compoundHepatitis B ChronicPegylated interferonInternal medicineRibavirinmedicineHumansProspective StudiesAdverse effectAgedHepatitis B virusHepatologybusiness.industryRibavirinInterferon-alphavirus diseasesHepatitis C ChronicMiddle AgedRecombinant Proteinsdigestive system diseaseschemistryDNA ViralImmunologyRNA ViralFemaleViral diseasebusinessmedicine.drugJournal of Hepatology
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Current practice of chronic hepatitis B treatment in Southern Italy

2012

Abstract Background Treatment choice for chronic HBV infection is a continuously evolving issue, with a wide range of options. We aimed to evaluate the current practice of HBV therapies in the real world in Southern Italy. Methods A prospective study enrolling over a six month period (February–July 2010) all consecutive HBsAg positive subjects, never previously treated, referred to 16 liver units in two Southern Italy regions (Calabria and Sicily). Results Out of 247 subjects evaluated, 116 (46.9%) had HBV-DNA undetectable or lower than 2000 UI/ml. There were 108 (43.7%) inactive carriers, 103 (41.7%) chronic hepatitis, and 36 (14.6%) liver cirrhosis. Antiviral treatment was planned in 94 (…

AdultMalemedicine.medical_specialtyHBsAgGuanineCirrhosisOrganophosphonatesPyrimidinonesNucleosides analoguesAntiviral AgentsPolyethylene GlycolsYoung AdultHepatitis B ChronicChronic hepatitisInterferonPegylated interferonInternal medicineHBVInternal MedicinemedicineHumansHepatitis B e AntigensPractice Patterns Physicians'TenofovirProspective cohort studyAgedAged 80 and overTelbivudinebusiness.industryAdenineAge FactorsInterferon-alphaNucleosidesMiddle AgedHBV; Interferon; Nucleosides analogues; Nucleotides analoguesNucleotides analoguesmedicine.diseaseRecombinant ProteinsItalyLamivudineCurrent practiceImmunologyInterferonFemalePreviously treatedbusinessThymidinemedicine.drugEuropean Journal of Internal Medicine
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