Ved un - dersøgelsens slutning havde kombinationen med PegIntron virket hos 65% af patienterne (mod 54% i kombinationen med interferon alfa- 2b).
Combining ribavirin and PegIntron (as a once-weekly injection of 1.5 micrograms/ kg) was more effective than the combination with interferon alfa-2b (3 million IU three times a week): more patients had responded to treatment at the end of the study (65% compared with 54%).