After a disappointing end to a nine-year trial, the U.S. Food and Drug Administration officially gave AMAG Pharmaceuticals notice of the proposal to withdraw approval of Makena, an injectable progestin treatment to reduce preterm births.  

One of medicine’s costliest treatment areas could become even more pricey as Biogen seeks to layer the company’s $750,000 spinal muscular atrophy drug on top of the $2.1 million-per-patient Novartis gene therapy Zolgensma.

An unnamed Novartis executive sold 925,400 Swiss francs ($946,000) worth of shares less than three weeks before the U.S. Food and Drug Administration announced data from tests of the company’s gene therapy Zolgensma had been manipulated.