Biotechnology In what may be an unprecedented move on drug pricing and access, advocates from the AIDS Healthcare Foundation (AHF), the USA-based global AIDS organization, are calling on state AIDS and Medicaid directors as well as a number of private medical insurers nationwide asking them to place Gilead Science's (Nasdaq: GILD)new Quad (elvitegravir, cobicistat, emtricitabine and tenofovir disoproxil fumarate), a four-in-one, once-daily HIV/AIDS combination tablet - on "prior authorization" status on their respective drug formularies. 19 August 2012