“R&D is really running hot at Pfizer these days,” John Burkhardt, the Groton labs site director and vice president of global drug safety research and development, said during a luncheon meeting of the Chamber of Commerce of Eastern Connecticut.

Burkhardt said the nearly 3,000 Pfizer employees in Groton have played a part in the company’s recent string of successes, which includes securing regulatory approvals for four new anti-cancer drugs late last year. The Groton labs are the largest of Pfizer’s global research and development facilities.