HIV and ID Observations

May 22nd, 2016

Drug Prior Authorizations Are a Very Blunt Tool for Cost Containment — And They’re Annoying

Insurance prior authorizations, or prior approvals (PAs) — those dreaded forms clinicians have to fill out, usually triggered by prescribing a non-formulary drug — are much on my mind these days. And most of it has to do with three letters, specifically “TAF.” As readers of this site probably know, there are now three tenofovir alafenamide (TAF)-based coformulations […]

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March 9th, 2016

Approval of TAF/FTC/RPV, Another Single Pill HIV Treatment Option

The approval last week of TAF/FTC/RPV — that’s coformulated tenofovir alafenamide, emtricitabine, and rilpivirine — brings us another one-pill, once-daily option for HIV treatment. It’s essentially the same as the existing TDF/FTC/RPV, with similar pros/cons, but with three notable differences coming with the substitution of TAF for TDF. Specifically: Likely reduced renal and bone toxicity. Since approval was based on bioequivalnce, this hasn’t […]

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November 8th, 2015

New HIV Treatment “ECF-TAF” is Really All About the “TAF” Part

HIV providers and patients recently got this news from the FDA: The U.S. Food and Drug Administration today approved Genvoya (a fixed-dose combination tablet containing elvitegravir, cobicistat, emtricitabine, and tenofovir alafenamide) as a complete regimen for the treatment of HIV-1 infection in adults and pediatric patients 12 years of age and older. (Disclosure:  I have been […]

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