HAMPTON, N.J., April 27, 2016 (GLOBE NEWSWIRE) — Celldex Therapeutics, Inc. (Nasdaq:CLDX) today announced that it has initiated an open-label Phase 1/2 safety and tolerability study of glembatumumab vedotin in patients with unresectable stage IIIB or IV, gpNMB-expressing, advanced or metastatic squamous cell carcinoma (SCC) of the lung, who have …