Wyeth and Progenics Pharmaceuticals Announce Worldwide Collaboration to Develop and Commercialize Methylnaltrexone
Wyeth Pharmaceuticals, a division of Wyeth and Progenics Pharmaceuticals, Inc. announced that they have entered into an exclusive, worldwide agreement for the joint development and commercialization of methylnaltrexone (MNTX) for the treatment of opioid-induced side effects, including constipation and post-operative bowel dysfunction. These medical conditions are major therapeutic challenges in the management of gastrointestinal function in individuals treated with opioids for pain or in patients following serious or prolonged surgeries.
Under the terms of the collaboration, Wyeth receives worldwide rights to MNTX, and Progenics retains an option to co-promote the product in the United States. The companies will collaborate on the worldwide development of MNTX. The transaction includes an upfront payment of $60 million to Progenics with as much as an additional $356.5 million payable upon achievement of certain milestones. Wyeth will pay Progenics royalties on worldwide sales of MNTX and co-promotion fees within the United States. Additionally, Wyeth is responsible for all future development and commercialization costs.
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