Processa Pharmaceuticals (PCSA) Stock: Phase 2 Breast Cancer Update, 1-for-25 Reverse Split, and What Wall Street Is Watching on Dec. 18, 2025

December 18, 2025 — Processa Pharmaceuticals, Inc. is back on traders’ radar after the company reported fresh clinical observations from its Phase 2 breast cancer program and implemented another reverse stock split to consolidate shares. The result: a whiplash week for the stock, a surge in attention, and a new set of near-term catalysts that now matter more than anything else.