George Yancopoulos of Regeneron speaks (right), alongside US health secretary Robert F. Kennedy Jr, Medicare chief Chris Klomp and Donald Trump last week. Photo: Getty

George Yancopoulos of Regeneron speaks (right), alongside US health secretary Robert F. Kennedy Jr, Medicare chief Chris Klomp and Donald Trump last week. Photo: Getty

US biotech giant Regeneron Pharmaceuticals has blamed “unanticipated facility repairs” at its huge facility in Limerick for a production pause that has hit the entire group’s margin.

Details of the “temporary interruption of bulk manufacturing production” at Raheen, Co Limerick, were included in Regeneron’s latest quarterly results.