Amgen And AstraZeneca Announce Positive Results For Psoriasis In A Late-Stage 3 Study By: TalkMarkets November 28, 2014 at 11:37 AM EST Amgen and AstraZeneca announce positive results for psoriasis in a late-stage 3 study. Read More >> Related Stocks: Amgen Astrazeneca Plc ADR Johnson & Johnson