Agios Pharmaceuticals Inc. said the patients’ deaths tied to anemia therapy Pyrukynd (mitapivat) that were announced in a securities analyst’s Aug. 4 note to investors hasn’t changed the drug’s already established benefit-risk profile on the drug’s U.S. prescribing information.

Agios Pharmaceuticals Inc. is learning the hard way the downside of having a pipeline in a product. When a side effect crops up, investors are likely to worry that it may affect the potential of the drug in the numerous diseases the drug could potentially treat.

Shares in Forma Therapeutics Holdings Inc. gained 51% as Novo Nordisk A/S made a $20-per-share offer that values the firm’s equity at $1.1 billion. The stock (NASDA:FMTX) had closed at $13.40 prior to the disclosure of the bid on Sept. 1. It closed the day at $20.24, up $6.84, suggesting at least some optimistic investors believe the final price could go higher.

The FDA’s approval of Agios Therapeutics Inc.’s Pyrukynd (mitapivat) for treating hemolytic anemia marks a turnaround from nearly a year ago. That’s when Agios sold its commercial, clinical and research-stage oncology portfolio to privately held Servier Pharmaceuticals LLC to concentrate on rare diseases.