CRWENewswire, Stocks to Watch. Threshold Pharmaceuticals Inc - THLD - reported that a global agreement was signed with Merck KGaA, Darmstadt, Germany, to co-develop and commercialize TH-302, Threshold’s small molecule hypoxia-targeted drug. Threshold will receive an upfront payment of $25 million and could receive up to $35 million in additional development milestones during 2012. Threshold is also eligible to receive a $20 million milestone payment based on positive results from its randomized Phase 2 trial in pancreatic cancer. Total potential milestone payments are $525 million, comprised of $280 million in regulatory and development milestones and $245 million in sales-based milestones.