PEG12000-IFN alfa 2B 0.5 mcg/kg + ribavirin 800 mg/day vs. PEG12000-IFN alfa 2B 1.5 mcg/kg + ribavirin 800 mg/day for 48 weeks for treatment of patients with hepatitis C who failed or relapsed after treatment with combination therapy (rebetron)-interim results: Douglas D Dalke, Gastroenterology Specialties, Lincoln, NE; Jeremiah Donovan, Creighton University, Omaha, NE; John Goff, Rocky Mountain Gastroenterology, Denver, CO; Howard Monsour, Gastroenterology & Liver Assoc, Houston, TX; Terry Box, Mountain West Gastroenterology, Salt Lake City, UT; Andre Triebling, Arapahoe Gastroenterology, Denver, CO; Douglas Brouillette, Internal Medicine Assoc, Omaha, NE; Robert Levine, Boulder Medical Ctr, Boulder, CO; Lawrence Kim, South Denver Gastroenterology, Englewood, CO; Mark Malliard, Univ of NE Dept of Hepatology, Omaha, NE