Phyton Biotech in Germany operates the world's largest cGMP plant cell culture facility using stainless stirred-tank bioreactors up to 75,000 L to produce the taxanes and paclitaxel (up to 880,000 L/year production capacity for taxanes) and has been an API (active pharmaceutical ingredient) supplier for Bristol-Myers Squibb's Taxol® oncology product. Phyton Biotech has an agreement with Insmed, Inc., in which Phyton Biotech utilizes their cGMP plant cell culture facility to manufacture the IPLEX™ (mecasermin rinfabate), approved by FDA in December 2005 for the treatment of growth failure in children with primary insulin growth factor-1 deficiency or with growth hormone gene deletion. Phyton Biotech has made promising progress toward achieving a product yield of 2 g protein/(L-broth) (Lukjan et al., 2007).