new london - ( business ear ) pfizer limited announced today that it has become the fourth pharmacy company to be accredited by the board for the accreditation of human research protection programs ( aahrpp ) for ensuring the defence of human subject taking participants in intermediate - stage clinical trials . the aahrpp certificate was awarded to pfizer ' s clinical research units ( crus ) in the haven , marc , brussels , belgium and singapore , whereby the firm conducts most of its phase i experimental tests . to earn the accreditation , pfizer participated in a rigorous , 15 - month examination of the clinical research practices at these sites .
Pfizer is a pharmaceutical company.