Sentence: The combination of boceprevir or telaprevir with peginterferon-alfa and ribavirin for the treatment of patients infected with HCV genotype 1 has led to significantly increased rates of sustained virological response ( SVR ) in phase III trials .
Drug combination annotation:
[{'class': 'POS', 'spans': ['boceprevir', 'peginterferon-alfa', 'ribavirin'], 'is_context_needed': True}, {'class': 'POS', 'spans': [1, 2, 3], 'is_context_needed': True}]