Treatment of Current Hepatitis C Infection
The recommended first-line treatment for patients with current hepatitis C infection is a direct-acting antiviral (DAA) regimen consisting of either sofosbuvir/velpatasvir for 12 weeks or glecaprevir/pibrentasvir for 8 weeks, regardless of HCV genotype. 1, 2
Initial Assessment
Before starting treatment:
- Test for evidence of current or prior HBV infection (HBsAg and anti-HBc) 3, 4
- Assess for cirrhosis using non-invasive methods:
- Calculate FIB-4 score
- Consider cirrhosis present if FIB-4 >3.25, transient elastography >12.5 kPa, or clinical evidence of cirrhosis 2
- Check for potential drug-drug interactions 2
- Evaluate for other conditions that may accelerate liver fibrosis (HIV, HBV) 2
Treatment Regimens
For patients without cirrhosis or with compensated cirrhosis (Child-Pugh A):
- First-line options:
For patients with decompensated cirrhosis (Child-Pugh B or C):
- Sofosbuvir/velpatasvir plus ribavirin for 12 weeks 3, 1
- Ribavirin dosing: 1,000 mg daily for patients <75 kg, 1,200 mg daily for patients ≥75 kg (divided twice daily) 3
Special Populations
Patients with renal impairment:
- Glecaprevir/pibrentasvir is preferred for severe renal impairment (eGFR <30 mL/min) 1
- Sofosbuvir-based regimens should be used with caution in moderate renal impairment 1
HIV/HCV co-infection:
- Same regimens as HCV monoinfection, but carefully check for drug interactions with antiretroviral therapy 1
Liver transplant recipients:
Monitoring During Treatment
- No routine laboratory monitoring required for most patients 2
- For patients on diabetes medications: monitor for hypoglycemia 2
- For patients on warfarin: monitor INR for subtherapeutic anticoagulation 2
- Consider in-person or telehealth visit for patient support and symptom assessment 2
Assessment of Cure
- Check quantitative HCV RNA at least 12 weeks after completing therapy to confirm sustained virological response (SVR) 2, 1
- SVR is defined as undetectable HCV RNA 12 weeks post-treatment and is equivalent to viral eradication 5, 6
- Assess hepatic function panel to confirm transaminase normalization 2
Follow-up for Non-responders
- Patients who fail initial treatment should be evaluated for retreatment by a specialist 2
- For those unable to be retreated, assess for disease progression every 6-12 months with hepatic function panel, CBC, and INR 2
Important Considerations
- Advise patients to abstain from alcohol during and after treatment 2
- Vaccination against hepatitis A, hepatitis B, and pneumococcal infection (for cirrhotic patients) is recommended 2
- Patients with cirrhosis require continued HCC surveillance every 6 months even after achieving SVR 1
Treatment Evolution
Modern DAA therapy has transformed HCV treatment with cure rates exceeding 95% in most patient populations, compared to the 40-50% cure rates with older interferon-based regimens 1, 6. These treatments are highly effective, well-tolerated, and have minimal side effects compared to previous therapies 6.