By Joshua Oyster, Beth Weinman and Austin Laroche ( March 20, 2026, 6:06 PM EDT) -- On Feb. 23, the U.S. Food and Drug Administration issued a highly anticipated draft guidance that details a new regulatory approach — the plausible mechanism framework — for the development of individualized therapies.... Law360 is on it, so you are, too. A Law360 subscription puts you at the center of fast-moving legal issues, trends and developments so you can act with speed and confidence.