Vertex Pharmaceuticals Inc. and CRISPR Therapeutics amended their collaboration agreement for CTX001 in sickle cell disease and beta thalassemia.
CTX001 is an investigational gene editing therapy being developed as a potentially curative therapy for sickle cell disease and transfusion-dependent beta-thalassemia.
CRISPR Therapeutics shares were up 7% to $123.05 premarket.
Under the terms of the amended agreement, Vertex will lead global development, manufacturing and commercialization of CTX001 with support from CRISPR Therapeutics. Vertex will be responsible for 60% of program costs and will receive 60% of profits from future sales of CTX001 worldwide, representing a 10% increase in program economics compared to the previous agreement.
CRISPR will be responsible for 40% of costs and will receive 40% of profits. Additionally, CRISPR will receive a $900 million upfront payment, with potential for a $200 million payment upon the first regulatory approval of CTX001.