1992-1997: Questions (and answers ?) abound...
What type of interferon is most effective?
- At least seven types of IFN have been prospectively evaluated: alfa-2b; 2a; 2c; n1; n3; beta; and consensus IFN.
- Only alfa-2b and 2a approved for use in the U.S.
- Large controlled trials with consensus interferon near completion; next to be approved?
- There appears to be no significant difference in efficacy between formulations.