Roche and BioCryst Collaborate on Clinical Compound BCX-4208

02-Dec-2005

Roche and BioCryst Pharmaceuticals, Inc. announced an exclusive license to develop and commercialize BioCryst's phase I compound, BCX-4208, for the prevention of acute rejection in transplantation and for the treatment of autoimmune diseases. BCX-4208 is a transition-state purine nucleoside phosphorylase (PNP) inhibitor believed to have a potent ability to modulate T-cell activity. T-cells help the body determine when to initiate immune responses and when to accept or reject newly transplanted organs. By specifically modulating T-cell activity, BCX-4208 may offer transplant and autoimmune patients a more efficacious and tolerable treatment option.

Under the terms of the agreement, Roche will obtain worldwide rights to BCX-4208 in exchange for a $25 million up-front payment and a $5 million payment as reimbursement for supply of material during the first 24 months of the collaboration. Future event payments could reach $530 million in addition to royalties on product sales of BCX-4208. For five years, Roche will have a right of first negotiation on existing back-up PNP inhibitors in transplant rejection or autoimmune diseases. BioCryst retains the right to co-promote BCX-4208 in the U.S. for several indications. Any new PNP inhibitor discovered subsequent to this agreement will be exempt from this agreement and BioCryst will retain all rights to such compounds.

BCX-4208, a second generation transition-state analog inhibitor of the enzyme purine nucleoside phosphorylase (PNP), may have the potential to offer greater efficacy and activity in the treatment of autoimmune disease and transplant rejection than currently available therapies.

https://www.bionity.com/en/news/50617/roche-and-biocryst-collaborate-on-clinical-compound-bcx-4208.html