BioMarin Announces Strong Second Quarter 2023 Results and Record Breaking Revenues for the First Half of 2023, Including 13% Year Over Year Growth Year-to-date

• VOXZOGO^® Growth Continued in the Second Quarter Driven by Global Demand Resulting in Increased Full Year 2023 Guidance
• Pivotal Program with VOXZOGO in New, Potential Second Indication, Hypochondroplasia, to Begin in the Fourth Quarter of 2023
• U.S. Approval of ROCTAVIAN™ Received in the Second Quarter and Commercial Launch Underway; Commercial Launch in Europe Making Progress

SAN RAFAEL, Calif., July 31, 2023 /PRNewswire/ -- BioMarin Pharmaceutical Inc. (NASDAQ: BMRN) today announced financial results for the six months and second quarter ended June 30, 2023.

"Outstanding execution across our business led to record revenues in the first half of 2023. We reached more children with VOXZOGO around the world, as physicians and families sought treatment with the only approved medicine targeting the genetic cause of achondroplasia," said Jean-Jacques Bienaimé, Chairman and Chief Executive Officer of BioMarin. "We were also very pleased to have received the highly anticipated U.S. approval of ROCTAVIAN, the only gene therapy treatment for severe hemophilia A. U.S. commercial launch activities are well underway following the June 29 approval, in parallel with launch progress across a number of European countries."

Mr. Bienaimé added, "for the remainder of 2023, we plan to build on the foundation of growth and profitability achieved in the first half of the year, expand VOXZOGO globally and treat the first ROCTAVIAN patients in the U.S. and Europe."

Financial Highlights:

• Total Revenues for the second quarter of 2023 were $595.3 million, an increase of 12% compared to the same period in 2022. The increase in Total Revenues was primarily attributed to the following:
  • higher VOXZOGO sales volume due to continued global market expansion and rapid patient uptake across all regions;
  • higher PALYNZIQ product revenues primarily due to new patients initiating therapy, particularly in the U.S.; partially offset by
  • lower NAGLAZYME product revenues primarily driven by the timing of orders in countries that place large government orders, particularly in Latin America.
• GAAP and Non-GAAP Net Income increased by $28.3 million and $28.4 million, respectively, for the second quarter of 2023 compared to the same period in 2022. The increased net income was primarily due to higher gross profit and interest income, partially offset by higher spend in research and development programs to support both early-stage research and clinical activities, as well as higher selling, general and administrative expenses due to higher foreign currency losses and to support the commercial launches of VOXZOGO and ROCTAVIAN.

Recent Product Approvals and Launches (ROCTAVIAN and VOXZOGO)

• On June 29, 2023 the FDA approved ROCTAVIAN gene therapy for the treatment of adults with severe hemophilia A (congenital factor VIII (FVIII) deficiency with FVIII activity < 1 IU/dL) without antibodies to adeno-associated virus serotype 5 (AAV5) detected by an FDA-approved test. The FDA approval is based on data from the global Phase 3 GENEr8-1 study, the largest Phase 3 trial of any gene therapy in hemophilia. The one-time, single-dose infusion is the first approved gene therapy for severe hemophilia A in the U.S. ROCTAVIAN was first conditionally approved by the European Commission in August 2022.
  
  Following FDA approval, the Company activated its U.S.-based salesforce and communicated that ROCTAVIAN is expected to be available for commercial use in August. BioMarin estimates that there are approximately 2,500 people living with severe hemophilia A in the United States who are eligible for treatment and receiving care at approximately 140 hemophilia treatment centers.
• In Europe, BioMarin continues to make progress on the pricing and reimbursement process for ROCTAVIAN in Germany, France and Italy to facilitate access. BioMarin is working directly with the German National Association of Statuary Health Insurance Funds (GKV) to finalize access to ROCTAVIAN. At present, people in Germany with severe hemophilia A, who are eligible for treatment with ROCTAVIAN, can access treatment through either Named Patient authorizations or previously secured Outcomes Based Agreements. In France and Italy, BioMarin is working directly with the single public insurance funds in each country to secure reimbursement and access to ROCTAVIAN, expected later in 2023.
• As of the end of June 2023, more than 2,000 children with achondroplasia were being treated with VOXZOGO across 36 active markets. In the second quarter, patient growth remained strong worldwide. Based on these trends, today BioMarin updated full-year 2023 VOXZOGO guidance to between $400 million and $440 million. VOXZOGO is currently approved for the treatment of children 2 years old and older in Europe, for children 5 years old and older in the U.S., and approved for all ages from birth in Japan.

VOXZOGO and ROCTAVIAN Market Expansion Opportunities

• Today, BioMarin announced its plan to begin enrollment in the pivotal program with VOXZOGO for the treatment of children with hypochondroplasia, a condition characterized by impaired bone growth. Hypochondroplasia is a genetic statural condition caused by a mutation (gene change) in the fibroblast growth factor receptor-3 (FGFR3) gene.
  
  Leveraging years of safety data from the VOXZOGO development program in achondroplasia, emerging data from an investigator-led Phase 2 study and following receipt of feedback from FDA, BioMarin plans to begin the 6-month observation arm of the study later this year, followed by the 52-week randomized, double-blind, placebo-controlled phase of the 80-participant clinical trial. If successful, BioMarin believes this study will be able to support regulatory approval in this large indication.
• In the coming months in the U.S. and Europe, the Company expects to learn the outcome of its request to expand VOXZOGO access to younger age groups, based on favorable results from a Phase 2 study in infants and young children and the importance of starting treatment as early as feasible. Age expansions would provide access to treatment with VOXZOGO to more than 1,000 additional children in the U.S. and Europe.
• Additional product expansion opportunities with ROCTAVIAN continue, including a clinical study investigating ROCTAVIAN treatment in those with active or prior inhibitors and continued exploration of methods of administering ROCTAVIAN in people with pre-existing antibodies against AAV5.

Earlier-stage Development Portfolio (BMN 255, BMN 331, BMN 351, BMN 349, BMN 293)

• BioMarin plans to showcase its Research and Development capabilities and earlier-stage product candidate updates at its R&D Day on September 12, 2023. Details on accessing the live event will be available on BioMarin's website in early September.
• BMN 255 for hyperoxaluria in chronic liver disease: The Company has concluded the multi-ascending dose study with BMN 255 in healthy human volunteers. Based on early data demonstrating a rapid and potent increase in plasma glycolate following treatment with BMN 255, BioMarin plans to open enrollment in an expanded study in patients with chronic liver disease and hyperoxaluria in the second half of 2023. The Company believes the availability of a potent, orally bioavailable, small molecule like BMN 255 may be able to significantly reduce disease and treatment burden in a patient population with significant unmet need.
• BMN 331 gene therapy product candidate for Hereditary Angioedema (HAE): Dosing continues in the Phase 1/2 HAERMONY study to evaluate BMN 331, an investigational AAV5-mediated gene therapy for people living with HAE. In January 2023, BioMarin shared that the first participant treated with the 6e13vg/kg dose demonstrated C1-Inhibitor levels that were approaching the therapeutically relevant range. In March 2023, the second sentinel participant was safely dosed at 6e13vg/kg and this individual has had a similar initial response. BioMarin will continue to monitor the trajectory of expression in these two individuals before deciding on next steps in this program.
• BMN 351 for Duchenne Muscular Dystrophy (DMD): Investigational New Drug application (IND)-enabling activities continue with BMN 351, an antisense oligonucleotide therapy for individuals with exon 51-skip-amenable DMD. BMN 351 was developed using familiar chemistry and superior biology, by targeting a novel, splice enhancer site demonstrating improved binding affinity and tolerability in preclinical models. Preclinical data suggest that restored expression of near-full-length dystrophin protein at levels of up to 40% will convert phenotypes from rapid loss to durable preservation of strength and ambulation.
• BMN 349 for alpha-1 antitrypsin deficiency: Preclinical studies have demonstrated that BMN 349 is an orally bioavailable, small molecule that preferentially sequesters mutant protein, preventing polymerization in liver cells that drive the progressive liver disease form of the illness. In preclinical studies BMN 349 is titratable to effect, with rapid onset and high potency. Preclinical results have strong implications for potential improvement of current management, particularly for severe liver disease requiring rapid action. IND enabling studies are concluding and BioMarin plans to submit the IND in the second half of 2023.
• BMN 293 for MYBPC3 hypertrophic cardiomyopathy (HCM): Mutations in the MYBPC3 gene are the most common cause of inherited HCM. Early investigations suggest that gene therapy-mediated gene transfer can lead to widespread expression of the gene product, cardiac myosin-binding protein C (MyBP-C), in cardiac tissue, which can normalize cardiac hypertrophy, improve relaxation kinetics and potentially alleviate functional deficits in individuals suffering from cardiomyopathy. IND enabling studies are underway and have incorporated pre-IND feedback from the FDA. BioMarin's goal is to submit an IND for BMN 293 in the second half of 2023.

2023 Full-Year Financial Guidance (in millions, except % and EPS amounts) (Updated)

BioMarin will host a conference call and webcast to discuss second quarter 2023 financial results today, Monday, July 31, 2023, at 4:30 p.m. ET. This event can be accessed through this link or on the investor section of the BioMarin website at www.biomarin.com.

About BioMarin

Founded in 1997, BioMarin is a global biotechnology company dedicated to transforming lives through genetic discovery. The Company develops and commercializes targeted therapies that address the root cause of genetic conditions. BioMarin's robust research and development capabilities have resulted in multiple innovative commercial therapies for patients with rare genetic disorders. The Company's distinctive approach to drug discovery has produced a diverse pipeline of commercial, clinical, and pre-clinical candidates that address a significant unmet medical need, have well-understood biology, and provide an opportunity to be first-to-market or offer a substantial benefit over existing treatment options. For additional information, please visit www.biomarin.com.

Forward-Looking Statements

This press release and the associated conference call and webcast contain forward-looking statements about the business prospects of BioMarin Pharmaceutical Inc. (BioMarin), including, without limitation, statements about: the expectations of Total Revenues, Net Product Revenues, Enzyme Product Revenues, Gross Profit, Research and Development Expense (R&D), Selling, General and Administrative Expense (SG&A), GAAP Net Income, Non-GAAP Income, GAAP Diluted EPS and Non-GAAP Diluted EPS for the full-year 2023; cash flows from operating activities; the timing of orders for commercial products; the timing of BioMarin's clinical development and commercial prospects, including announcements of data from clinical studies and trials; the clinical development and commercialization of BioMarin's product candidates and commercial products, including (i) the potential to leverage VOXZOGO in conditions beyond achondroplasia, such as hypochondroplasia, (ii) the results from clinical studies regarding product expansion opportunities for ROCTAVIAN, (iii) BioMarin's plans to initiate and enroll an expanded study of BMN 255 in the second half of 2023, (iv) BioMarin's plan to submit an IND for BMN 349 in the second half of 2023, and (v) BioMarin's goal to submit an IND for BMN 293 in the second half of 2023; the potential approval and commercialization of BioMarin's product candidates, including commercialization of ROCTAVIAN for the treatment of severe hemophilia A in the U.S. following FDA approval in June 2023, and the timing of such approval decisions and product launches, including (i) the anticipated start and growth of commercial sales of VOXZOGO in additional countries, and (ii) BioMarin's expectation that U.S. and EU health authorities take action on its supplemental marketing applications for VOXZOGO in the coming months and the number of additional children that will be eligible for VOXZOGO if such age expansions are accepted; the expected benefits and availability of BioMarin's product candidates; and potential growth opportunities and trends, including that BioMarin expects accelerated growth of VOXZOGO revenues as the product launch continues in future quarters and that BioMarin expects growth of ROCTAVIAN revenues as the product's access is expanded in Europe and following commercial launch in the U.S.

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: BioMarin's success in the commercialization of its commercial products, impacts of macroeconomic and other external factors on BioMarin's operations; results and timing of current and planned preclinical studies and clinical trials and the release of data from those trials; BioMarin's ability to successfully manufacture its commercial products and product candidates; the content and timing of decisions by the FDA, the European Commission and other regulatory authorities concerning each of the described products and product candidates; the market for each of these products; actual sales of BioMarin's commercial products; the introduction of generic versions of BioMarin's commercial products, in particular generic versions of KUVAN; and those factors detailed in BioMarin's filings with the Securities and Exchange Commission (SEC), including, without limitation, the factors contained under the caption "Risk Factors" in BioMarin's Quarterly Report on Form 10-Q for the quarter ended March 31, 2023 as such factors may be updated by any subsequent reports. 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^®, BRINEURA^®, KUVAN^®, NAGLAZYME^®, PALYNZIQ^®, VIMIZIM^® and VOXZOGO^® are registered trademarks of BioMarin Pharmaceutical Inc., or its affiliates. ROCTAVIAN^TM is a trademark of BioMarin Pharmaceutical Inc. ALDURAZYME^® is a registered trademark of BioMarin/Genzyme LLC. All other brand names and service marks, trademarks and other trade names appearing in this release are the property of their respective owners.