The promising drug, then in the early stages of testing, was an updated version of tenofovir.
The “patent extension strategy,” as the Gilead documents repeatedly called it, would allow the company to keep prices high for its tenofovir-based drugs.
Gilead could switch patients to its new drug just before cheap generics hit the market.
By putting tenofovir on a path to remain a moneymaking juggernaut for decades, the strategy was potentially worth billions of dollars.
The delayed release of the new treatment is now the subject of state and federal lawsuits in which some 26,000 patients who took Gilead’s older H.I.V.
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Gilead