Polylaminin (from placental laminin) is an experimental Brazilian treatment by UFRJ researchers + Cristรกlia lab. It aims to promote axon regrowth in spinal cord injuries when injected directly into the site.
Real results so far: Strong in rat models. In dogs with chronic SCI, 4/6 regained walking ability in a 2025 study. Small human pilots (acute cases): some full/partial motor recovery, esp. if given within 72 hours. Chronic cases show mixed/partial gains like arm movement. Now entering phase 1 human trials (Anvisa-approved 2026). Not approved yet; more large trials needed. Promising but early-stage.