BridgeBio Pharma Inc. jumped in premarket trading after its drug got US regulators’ nod to treat a deadly form of heart disease, paving the way for head-to-head competition with medications from Pfizer Inc.

BridgeBio Pharma snagged FDA approval for its rival to Pfizer's heart disease treatment, Vyndaqel. BridgeBio stock catapulted.

(In Nov. 22 story, corrects list price of Pfizer's drug to about $268,000 from $225,000 in paragraph 3) (Reuters) -The U.S. Food and Drug Administration has approved BridgeBio's drug for a rare and deadly heart condition,