At a meta level suggest that you actually research before dis(miss)ing
Why did BMY withdraw the late-stage, head-to-head study between Peg-lambda and Peg-Alfa?
A- They were unable to enroll patients. Nobody wants to use that shit.
Last lambda trial enrolled WAY faster than expected
Lambda arguably has lower SAE than some DAAs
B- The cost of running the late-stage study couldn't be justified since BMY realises the market is going oral.
It might - but then why are they funding clinicaltrials.gov/ct2/show/NCT01309932
C- BMY was worried Lambda would show inferior efficacy and/or safety in the head-to-head late-stage trial.
Not likely - the ph iia interim was pretty unequivocal as showing meaningfully better efficacy and meaningfully lesser SAE than ifn-a.
Again, the point isn't that Lambda is a lock. Only that there is expected value owed to having a potentially sizable niche all to itself - vs the dog-eat-dog world of DAAs and the potential surprises of a DAA-only regimen.
Why did BMY withdraw the late-stage, head-to-head study between Peg-lambda and Peg-Alfa?
A- They were unable to enroll patients. Nobody wants to use that shit.
B- The cost of running the late-stage study couldn't be justified since BMY realises the market is going oral.
C- BMY was worried Lambda would show inferior efficacy and/or safety in the head-to-head late-stage trial.
D- All the above.
To add to my earlier reply - because they wanted to add two different ph iii trials going in a little bit different direction:
Safety and Efficacy Study of Pegylated Interferon Lambda With and Without Daclatasvir, Compared to Pegylated Interferon Alfa, Plus Ribavirin in Subjects With Hepatitis C Genotype 2 and 3
Phase 3 Efficacy and Safety Study of Peginterferon Lambda-1a and Ribavirin With Telaprevir