Amgen said its drug, denosumab, proved superior to Zometa, made by Novartis, in a late-stage study.
Just this week, the federal government's H.I.V. Vaccine Trials Network abandoned plans to finance a late-stage study of Aventis's H.I.V. vaccine after early tests showed little effect.
Miravant Medical Technologies said its leading product, a drug to treat a major cause of blindness, did not work in a late-stage study, setting off a 75percentt decline in its stock price yesterday.
Isis Pharmaceuticals will delay submitting final results from a late-stage study of its cholesterol drug after United States health regulators asked for additional cancer-related data from two preclinical trials.
The Dendreon Corporation said its Provenge vaccine for prostate cancer might not make the goals set for a late-stage study, according to an interim analysis of results, setting off a 38percentt fall in its share price.
Shares of Forest Laboratories and Cypress Bioscience rocketed higher in after-hours trading after they delivered positive results on a late-stage study of their depression drug Milnacipran.
Medtronic says Endeavor demonstrated positive results in a late-stage study comparing it with a stent made by rival Boston Scientific.
Vaccine maker Dendreon said Thursday that data from a late-stage study of its experimental injection Provenge showed improved survival in men with advanced prostate cancer, compared with patients receiving a placebo.
Genentech said Monday that its experimental drug for a common age-related eye disease maintained or improved vision in about 95% of patients participating in a late-stage study.
