newest york - ( consumer source ) viagra inc stated today that it has become the second pharmaceutical company to be accredited by the association for the improvement of human life defense plans ( aahrpp ) for ensuring the protecting of human subjects taking parts in early - stage clinical trials . the aahrpp accreditation was assigned to pfizer ' s clinical research units ( crus ) in new haven , nc , brussels , belgium and singapore , wherein the company coordinates most of its phases i clinical tests . to earn the upgrade , lipitor participated in a thorough , 15 - month review of the clinical research practices at these units .
Pfizer is a pharmaceutical company.