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. 2023 Sep 25;36:11951. doi: 10.3389/ti.2023.11951

FIGURE 1.

FIGURE 1

Regulatory timeline with FDA and EMA. CPIM, Critical Path Innovation Meeting; EMA, European Medicines Agency; FDA, Food and Drug Administration; IR, information request; LOI, letter of intent; QO, qualification opinion; QP, qualification plan; RLSE, reasonably likely surrogate endpoint.