BioMarin Announces IND For BMN-111 For Achondroplasia Is Active

Novato, CA /PRNewswire/ - BioMarin Pharmaceutical Inc. (Nasdaq: BMRN) announced today that the Investigational New Drug (IND) application for BMN-111, an analog of C-type Natriuretic Peptide (CNP), for achondroplasia is active. The company expects to initiate the Phase 1 trial in the first quarter of 2012.

"BMN-111 has demonstrated benefits in moderately and severely affected animal models and has been shown to promote bone growth even in normal animals," stated Hank Fuchs, M.D., Chief Medical Officer of BioMarin. "BMN-111 will mark our seventh program in the clinic, the most ever in the history of the company. We look forward to many potentially value-creating clinical milestones in the coming year."

The primary objective of the Phase 1 trial is to assess the safety and tolerability of single and multiple doses of BMN-111 in normal adult healthy volunteers up to the maximum tolerated dose. The company expects to start the Phase 2 study in pediatric subjects in the fourth quarter of 2012 or the first quarter of 2013.

About Achondroplasia
Achondroplasia is caused by an autosomal dominant activating mutation in the fibroblast growth factor receptor 3 (FGFR3) gene, a negative regulator of bone growth. Eighty percent of cases are the result of a spontaneous mutation, and ninety-eight percent of those cases have a G380R mutation. Achondroplasia is the most common form of human dwarfism and is characterized by failure of normal conversion of cartilage into bone. Clinical manifestations of the disease include short stature, craniomedullary compression, apnea, bowed legs, frontal bossing and midface hypoplasia, permanent sway of the lower back, spinal stenosis, recurrent ear infections and obesity.

The rate of incidence of achondroplasia is one in 15,000 to one in 40,000 live births, with approximately 18,000 to 24,000 patients in the U.S. and Europe combined.

About BioMarin
BioMarin develops and commercializes innovative biopharmaceuticals for serious diseases and medical conditions. The company's product portfolio comprises four approved products and multiple clinical and pre-clinical product candidates. Approved products include Naglazyme® (galsulfase) for mucopolysaccharidosis VI (MPS VI), a product wholly developed and commercialized by BioMarin; Aldurazyme® (laronidase) for mucopolysaccharidosis I (MPS I), a product which BioMarin developed through a 50/50 joint venture with Genzyme Corporation; Kuvan® (sapropterin dihydrochloride) Tablets, for phenylketonuria (PKU), developed in partnership with Merck Serono, a division of Merck KGaA of Darmstadt, Germany; and Firdapse™ (amifampridine), which has been approved by the European Commission for the treatment of Lambert Eaton Myasthenic Syndrome (LEMS). Product candidates include GALNS (N-acetylgalactosamine 6-sulfatase), which is currently in Phase III clinical development for the treatment of MPS IVA, amifampridine phosphate (3,4-diaminopyridine phosphate), which is currently in Phase III clinical development for the treatment of LEMS in the U.S., PEG-PAL (PEGylated recombinant phenylalanine ammonia lyase), which is currently in Phase II clinical development for the treatment of PKU, BMN 701, a novel fusion protein of insulin-like growth factor 2 and acid alpha glucosidase (IGF2-GAA), which is currently in Phase I/II clinical development for the treatment of Pompe disease, and BMN 673, a poly ADP-ribose polymerase (PARP) inhibitor, which is currently in Phase I/II clinical development for the treatment of genetically-defined cancers. For additional information, please visit www.BMRN.com. Information on BioMarin's website is not incorporated by reference into this press release.

Forward-Looking Statement
This press release contains forward-looking statements about the business prospects of BioMarin Pharmaceutical Inc., including, without limitation, statements about: the expectations of revenue and sales related to Naglazyme, Kuvan, Firdapse, and Aldurazyme; the financial performance of the BioMarin as a whole; the timing of BioMarin's clinical trials of GALNS, Firdapse, PEG-PAL, BMN-673, BMN-701 and other product candidates; the continued clinical development and commercialization of Aldurazyme, Naglazyme, Kuvan, Firdapse, and its product candidates; and actions by regulatory authorities. These forward-looking statements are predictions and involve risks and uncertainties such that actual results may differ materially from these statements. These risks and uncertainties include, among others: our success in the continued commercialization of Naglazyme, Kuvan, and Firdapse; Genzyme Corporation's success in continuing the commercialization of Aldurazyme; results and timing of current and planned preclinical studies and clinical trials, particularly with respect to GALNS, Firdapse, PEG-PAL, BMN 673 and BMN 701; our ability to successfully manufacture our products and product candidates; the content and timing of decisions by the U.S. Food and Drug Administration, the European Commission and other regulatory authorities concerning each of the described products and product candidates; the market for each of these products and particularly Aldurazyme, Naglazyme, Kuvan and Firdapse; actual sales of Aldurazyme, Naglazyme Kuvan and Firdapse; Merck Serono's activities related to Kuvan; and those factors detailed in BioMarin's filings with the Securities and Exchange Commission, including, without limitation, the factors contained under the caption "Risk Factors" in BioMarin's 2010 Annual Report on Form 10-K, and the factors contained in BioMarin's reports on Form 10-Q. Stockholders are urged not to place undue reliance on forward-looking statements, which speak only as of the date hereof. BioMarin is under no obligation, and expressly disclaims any obligation to update or alter any forward-looking statement, whether as a result of new information, future events or otherwise.

BioMarin®, Naglazyme®, Kuvan® and Firdapse™ are registered trademarks of BioMarin Pharmaceutical Inc.

Aldurazyme® is a registered trademark of BioMarin/Genzyme LLC.

SOURCE BioMarin Pharmaceutical Inc.