KEY POINTS
  • Roche shares slide as skin cancer treatment Zelboraf fails trial
  • The second recent trial disappointment is prompting analysts to reconsider sales forecasts and price targets

Roche shares tumbled to rank among the worst performers in European trade on Monday following news of the failure of trials for its skin cancer treatment Zelboraf. The disappointing results came alongside confirmation that similar products from compatriot and rival Novartis had met their aims.

Roche shares were trading 1.35 percent underwater by 12:30 p.m. London time as analysts considered the implication for the company in light of the separate recent trial failure of the company's eye treatment lampalizumab.