GDUFA I and the Generic Drug Backlog Crisis (2012)
By 2012, the FDA had accumulated a backlog of nearly 3,000 unreviewed generic drug applications, with median approval times exceeding 31 months. Congress authorized the Generic Drug User Fee Amendments, allowing the FDA to collect fees from generic manufacturers to fund dedicated review staff. The user-fee model had already worked for brand-name drugs under the Prescription Drug User Fee Act since 1992.
The FDA hired hundreds of new reviewers and began systematically clearing the backlog. By the end of GDUFA I's five-year term, 90% of pre-2012 applications had been reviewed.
GDUFA established the fee-funded review infrastructure that the current onshoring pilots now build upon. It also created the facility fees that the proposed three-year waiver would temporarily eliminate for new domestic plants.
The GDUFA framework is both the tool and the constraint. The ANDA prioritization pilot works within GDUFA's existing review structure, and the fee waiver is being negotiated as part of GDUFA IV reauthorization. Understanding that the FDA's generic drug review capacity depends on manufacturer-funded user fees explains why the fee waiver is controversial — waiving fees for new entrants means existing manufacturers effectively subsidize their future competitors.
