Bourla's remarks came during a conference call with analysts after Pfizer cut its yearly revenue forecast, blaming supply snags and a strengthening dollar.
"We continue not to see the need for any large-scale M&A activity at this time," Bourla, currently Pfizer's chief operating officer, said.
Bourla succeeds Pfizer's longtime Chief Executive Officer Ian Read in January.
(Reporting by Aakash Jagadeesh Babu in Bengaluru; Editing by Sai Sachin Ravikumar)