Concentration-Controlled Ribavirin for the Treatment of Patients With Chronic Hepatitis C Virus Infection
Sponsored by University of Colorado, Denver
The purpose of this study is to determine if concentration-controlled ribavirin dosing can achieve a targeted level of plasma exposures and if it appears safe and effective compared with standard weight-based ribavirin dosing. Forty, previously treatment-naive participants with genotype 1 disease will be randomized to receive concentration-guided or standard weight-based ribavirin. Peginterferon alfa 2a,ribavirin, and telaprevir will be provided through the study.
Deemed ready for HCV treatment by hepatology provider and patient
Allowed medications: all those not specifically listed in the exclusion criteria below including medications for peginterferon / ribavirin - related adverse effects: acetaminophen, ibuprofen, diphenhydramine, selective serotonin reuptake inhibitors, darbepoeitin, erythropoietin, GCSF
previous treatment with interferon, peginterferon, investigational HCV drugs, boceprevir, or ribavirin;
Cockcroft and Gault estimated creatinine clearance < 50 mL/min;
alcohol or illicit drug use that in the opinion of the investigator would interfere with study participation and/or impact study results
for females, active pregnancy or any intent to become pregnant during study period or for up to 6 months after completing treatment
for males, a pregnant female partner or intent to impregnate a female during study period or for up to 6 months after completing treatment
for both sexes an unwillingness to use two forms of contraception during the study period and for 6 months after completing treatment. While on telaprevir and for 2 weeks following discontinuation of telaprevir, females must use two non-hormonal forms of contraception;
history of significant or unstable cardiac disease including severe coronary artery disease (unstable angina, recent myocardial infarction, chest pain with exertion) or congestive heart failure;
receipt of an organ transplant;
malignant neoplastic disease;
chronic pulmonary disease that in the opinion of the study hepatologists would preclude treatment with peginterferon and ribavirin (e.g., pulmonary function tests ≤70% within the previous 2 years);
history of admission to a psychiatric facility within the previous year;
suicide attempt within the previous 3 years;
concomitant medications including: amantadine, mycophenolate mofetil, and investigational HCV compounds, alfuzosin, alfentanil, ergot derivatives (dihydroergotamine/ergotamine/ergonovine/methylergonovine), meperidine, anti-arrhythmics (quinidine, flecainide, propafenone, amiodarone, bepridil), astemizole, terfenadine, buspirone, diazepam, estazolam, oral midazolam, triazolam, budesonide, domperidone, eletriptan, eplerenone, fluticasone, pimozide, salmeterol, calcium channel blockers (diltiazem, felodipine, nifedipine, nisoldipine, verapamil), cisapride, cyclosporine, sirolimus, systemic tacrolimus, atorvastatin, lovastatin, simvistatin, sildenafil, tadalafil, verdenafil, antibiotics (clarithromycin, erythromycin, telithromycin, troleandomycin), carbamazepine, Phenobarbital, phenytoin, nefazodone, St. Johns Wort, antifungals (fluconazole, itraconazole, ketoconazole, posaconazole, voriconazole), rifampin, rifabutin, aprepitant, cholestyramine, fluvoxamine, mifepreistone, modafinil, systemic dexamethasone. With the exception of St. Johns Wort, investigators may use their discretion on use of herbal and dietary supplements.
Evidence of severe retinopathy or clinically relevant ophthalmologic disorders
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