-- Record Second-Quarter 2021 Net Sales of $832.5 Million Increased 80 Percent; Second-Quarter 2021 GAAP Net Income of $158.1 Million; Adjusted EBITDA of $366.9 Million --

-- Record TEPEZZA® (teprotumumab-trbw) Second-Quarter 2021 Net Sales of $453.3 Million Driven by Strong Demand and Relaunch Execution; Increasing Full-Year 2021 Net Sales Guidance to Greater Than $1.550 Billion and Expect Fourth-Quarter Year-Over-Year Growth of More Than 50 Percent --

-- Record KRYSTEXXA® (pegloticase injection) Second-Quarter 2021 Net Sales of $130.3 Million Increased 73 Percent; KRYSTEXXA Plus Immunomodulation Now at More Than 40 Percent --

-- Increasing Full-Year 2021 Net Sales Guidance to $3.025 Billion to $3.125 Billion, Representing 40 Percent Growth at the Midpoint; Increasing Full-Year 2021 Adjusted EBITDA Guidance to $1.26 Billion to $1.30 Billion, Representing 28 Percent Growth at the Midpoint --

-- Advancing Pipeline to Drive Long-Term Growth; Entered into Agreement with Arrowhead to Develop a Next-Generation Gout Medicine; Initiated Three Clinical Trials --

-- Acquired Biologics Drug Product Manufacturing Facility to Support Growth of On-Market Medicines and Development-Stage Biologics --

-- Hosting Virtual R&D Day on Sept. 29, 2021 --

Horizon Therapeutics plc (Nasdaq: HZNP) today announced record second-quarter 2021 financial results and increased both its full-year 2021 net sales and adjusted EBITDA guidance.

“Driving our record second-quarter performance was our highly successful TEPEZZA relaunch, which allowed Thyroid Eye Disease patients to rapidly access therapy and resulted in an increase in our full-year expectations,” said Tim Walbert, chairman, president and chief executive officer, Horizon. “Our increased full-year net sales and adjusted EBITDA guidance represents strong double-digit year-over-year growth driven by TEPEZZA, KRYSTEXXA and our other rare disease medicines, where we are seeing continued strong underlying demand given the significant benefits our medicines provide to patients. We also initiated three clinical trials and acquired a biologics drug product manufacturing facility to support our strategy to maximize our key growth drivers, expand our pipeline and build a global presence. Horizon remains one of the fastest-growing biotechnology companies, underscoring our commitment to generate value for patients and our shareholders.”

Financial Highlights

Second Quarter and Recent Company Highlights

• Strong TEPEZZA Relaunch Exceeded Expectations: In April, the Company resumed supplying the market with TEPEZZA following a supply disruption that began in December 2020 due to U.S.-government-mandated COVID-19 vaccine orders. Second-quarter net sales of $453.3 million exceeded expectations, and today, the Company increased its TEPEZZA full-year 2021 net sales guidance to greater than $1.550 billion from greater than $1.275 billion on continued strong new patient demand. In May, the Company resumed its unbranded television campaign and launched its first branded TEPEZZA television campaign, which is expected to drive broader reach and awareness of Thyroid Eye Disease (TED) and TEPEZZA, motivating patients to seek treatment more quickly.
  
  
  
  
• Entered into Agreement with Arrowhead to Develop Next-Generation Gout Medicine: In June, the Company entered into an agreement with Arrowhead Pharmaceuticals Inc., for a discovery-stage investigational RNA interference (RNAi) therapeutic targeting xanthine dehydrogenase (XDH) as a potential treatment for people with uncontrolled gout. Gout is a serious and painful form of arthritis that is caused by excess serum uric acid in the blood and XDH represents a clinically validated target that is the primary source of serum uric acid. There are more than nine million gout patients in the United States, and a meaningful portion of the patients treated do not respond sufficiently to conventional therapies.
  
  
  
  
• Acquired Biologics Manufacturing Facility in Waterford, Ireland: In July, the Company completed the acquisition of a biologics drug product manufacturing facility from EirGen Pharma in Waterford, Ireland. The Company intends to use the manufacturing facility to support the growth of the Company’s on-market medicines, including TEPEZZA, KRYSTEXXA and UPLIZNA® (inebilizumab-cdon), as well as development-stage biologics.
  
  
  
  
• New Chronic TED Data Published: Data published from two recent independent physician case studies of 40 chronic TED patients who showed benefit after treatment with TEPEZZA were published in Eye, the official journal for the Royal College of Ophthalmologists, and Orbit, the International Journal on Orbital Disorders, Oculoplastic and Lacrimal Surgery. These case studies add to the growing body of evidence supporting the use of TEPEZZA in chronic TED patients.
  
  
  
  
• Initiated Enrollment in Three Clinical Trials:
  • In May, the first patient was enrolled in an open-label trial to evaluate KRYSTEXXA plus methotrexate in patients who were not complete responders to treatment with KRYSTEXXA monotherapy. Patients who were not complete responders to KRYSTEXXA monotherapy have limited options available to address their uncontrolled gout, which is gout refractory to conventional therapies.
    
    
    
    
  • In June, the first patient was enrolled in a Phase 2 randomized, placebo-controlled trial to evaluate HZN-7734 in patients with moderate to severe active systemic lupus erythematosus (SLE), a disease in which the body's immune system attacks its own tissues and organs.
    
    
    
    
  • In July, the first patient was enrolled in a Phase 1 trial to evaluate HZN-1116 in patients with autoimmune diseases.
    
    
    
    
• Hosting Virtual R&D Day in September for Investors and Analysts: The Company will host a virtual R&D Day on Sept. 29, featuring presentations from the Company’s R&D leadership team and key opinion leaders with a focus on the Company’s expanded pipeline.
  
  
  
  
• Presented New UPLIZNA Data at Medical Meetings: The Company participated in several key medical meetings in the quarter, highlighting new UPLIZNA data. In April, new end-of-study data from the open-label extension period of the pivotal Phase 3 trial in patients with neuromyelitis optica spectrum disorder (NMOSD) were presented at the American Academy of Neurology’s 73rd Annual Meeting. The data demonstrated that UPLIZNA was generally well-tolerated for at least four years, and that long-term UPLIZNA treatment provided a sustained reduction in NMOSD attack risk from baseline, regardless of the time of treatment initiation. The Company also presented three oral sessions on UPLIZNA at the 7^th Congress of the European Academy of Neurology (EAN) in June. Additionally, a new analysis of the pivotal Phase 3 trial demonstrating that the medicine consistently reduced the risk of worsening disability in people living with NMOSD was published in the May issue of Neurology Neuroimmunology & Neuroinflammation.
  
  
  
  
• Received Multiple Best Workplace Awards: During the second quarter, the Company received four workplace recognitions reflecting the high engagement of its employees. In April, the Company was named one of Fortune’s “100 Best Companies to Work For” in the United States for the first time and was placed on Crain’s Chicago Business’ 2021 “Best Places to Work in Chicago” list for the sixth consecutive year. In May, Great Place to Work® named the Company to the “Best Workplaces in Chicago” list for the fifth consecutive year. In July, Fortune and Great Place to Work named the Company to the “Best Workplaces for Millennials™” list for the second consecutive year and the Company was the highest ranked biotechnology company on the list.

Key Clinical Development Programs

• TEPEZZA, an insulin-like growth factor type 1 receptor (IGF-1R) antagonist monoclonal antibody.
  
  
  • Chronic TED Trial: Phase 4 randomized, placebo-controlled trial to evaluate TEPEZZA in chronic TED expected to initiate in the coming weeks.
    
    
    
    
  • Subcutaneous (SC) Administration: Phase 1 pharmacokinetic trial underway to explore SC administration of TEPEZZA.
    
    
    
    
  • Diffuse Cutaneous Systemic Sclerosis Exploratory Trial: Phase 1 exploratory trial to evaluate TEPEZZA in dcSSc expected to initiate in the third quarter of 2021.
    
    
    
    
• KRYSTEXXA, a recombinant uricase enzyme that converts urate into a water-soluble liquid, allantoin, that can be easily excreted from the body.
  
  
  
  
  • MIRROR Randomized Controlled Trial: Phase 4 randomized, placebo-controlled trial underway to evaluate KRYSTEXXA plus methotrexate to increase the complete response rate in patients with uncontrolled gout.
    
    
    
    
  • PROTECT Trial: Phase 4 open-label trial underway to evaluate KRYSTEXXA to improve management of uncontrolled gout in kidney transplant patients.
    
    
    
    
  • Shorter Infusion Duration Trial: Phase 4 open-label trial underway to evaluate the impact of administering KRYSTEXXA plus methotrexate over a shorter infusion duration in patients with uncontrolled gout.
    
    
    
    
  • Monthly Dosing Trial: Phase 4 open-label trial underway to evaluate monthly dosing of KRYSTEXXA plus methotrexate in patients with uncontrolled gout.
    
    
    
    
  • Retreatment Trial: Phase 4 open-label trial initiated in May 2021 to evaluate KRYSTEXXA plus methotrexate in patients who were not complete responders to KRYSTEXXA monotherapy.
    
    
    
    
• UPLIZNA, an anti-CD19 humanized monoclonal antibody that depletes B cells, including the pathogenic cells that produce autoantibodies.
  
  
  
  
  • Myasthenia Gravis Trial: Phase 3 randomized, placebo-controlled trial underway to evaluate UPLIZNA in patients with myasthenia gravis, a chronic, rare, autoimmune neuromuscular disease that affects voluntary muscles, especially those that control the eyes, mouth, throat and limbs.
    
    
    
    
  • IgG4-Related Disease Trial: Phase 3 randomized, placebo-controlled trial underway to evaluate UPLIZNA in patients with IgG4-related disease, which is a group of disorders marked by tumor-like swelling and fibrosis of affected organs, such as the pancreas, salivary glands and kidneys.
    
    
    
    
  • Kidney Transplant Desensitization Trial: Phase 2 open-label trial underway to evaluate UPLIZNA, HZN-4920 or both in highly-sensitized patients waiting for a kidney transplant.
    
    
    
    
• HZN-825, an oral lysophosphatidic acid receptor 1 (LPAR₁) antagonist that prevents gene activation.
  
  
  
  
  • Diffuse Cutaneous Systemic Sclerosis Trial: Pivotal Phase 2b trial to evaluate HZN-825 in diffuse cutaneous systemic sclerosis expected to initiate in the third quarter of 2021.
    
    
    
    
  • Interstitial Lung Disease Trial: Pivotal Phase 2b trial to evaluate HZN-825 in idiopathic pulmonary fibrosis, the most common form of interstitial lung disease, expected to initiate in the third quarter of 2021.
    
    
    
    
• HZN-4920, a CD40 ligand antagonist that blocks T cell interaction with the CD40-expressing B cells, disrupting the overactivation of the CD40 ligand co-stimulatory pathway. Several autoimmune diseases are associated with the overactivation of this pathway.
  
  
  
  
  • Sjögren's Syndrome Trial: Phase 2b randomized, placebo-controlled trial underway to evaluate HZN-4920 in patients with Sjögren's syndrome, a chronic, systemic autoimmune condition that impacts exocrine glands, including the salivary and tear glands.
    
    
    
    
  • Rheumatoid Arthritis Trial: Phase 2 randomized, placebo-controlled trial underway to evaluate HZN-4920 in patients with rheumatoid arthritis.
    
    
    
    
  • Kidney Transplant Rejection Trial: Phase 2 open-label trial underway to evaluate HZN-4920 in kidney transplant rejection patients.
    
    
• HZN-7734, an anti-ILT7 human monoclonal antibody that depletes certain dendritic cells. Depleting these cells may interrupt the cycle of inflammation that causes tissue damage in diseases such as lupus, and a variety of other autoimmune conditions.
  
  
  
  
  • SLE Trial: Phase 2 randomized, placebo-controlled trial initiated in June 2021 to evaluate HZN-7734 in patients with SLE, a disease in which the body's immune system attacks its own tissues and organs.
    
    
    
    
• HZN-1116 Autoimmune Disease Trial: Phase 1 trial initiated in July 2021 to evaluate HZN-1116, a monoclonal antibody, in patients with autoimmune diseases.

Second-Quarter Financial Results

Note: For additional detail and reconciliation of non-GAAP financial measures to the most directly comparable GAAP financial measures, please refer to the tables at the end of this release.

• Net Sales: Second-quarter 2021 net sales were $832.5 million, an increase of 80 percent compared to the second quarter of 2020.

• Gross Profit: Under U.S. GAAP, the second-quarter 2021 gross profit ratio was 75.9 percent compared to 73.7 percent in the second quarter of 2020. The non-GAAP gross profit ratio in the second quarter of 2021 was 87.7 percent compared to 88.4 percent in the second quarter of 2020.

• Operating Expenses: Research and development (R&D) expenses were 16.8 percent of net sales and selling, general and administrative (SG&A) expenses were 42.7 percent of net sales. Non-GAAP R&D expenses were 9.7 percent of net sales, and non-GAAP SG&A expenses were 33.8 percent of net sales.

• Income Tax Benefit: In the second quarter of 2021, income tax benefit on a GAAP and non-GAAP basis was $42.5 million and $35.6 million, respectively.

• Net Income: On a GAAP basis in the second-quarter of 2021, net income was $158.1 million. Second-quarter 2021 non-GAAP net income was $381.4 million.

• Adjusted EBITDA: Second-quarter 2021 adjusted EBITDA was $366.9 million.

• Earnings (Loss) per Share: On a GAAP basis, diluted earnings per share in the second quarter of 2021 was $0.67. GAAP loss per share in the second quarter of 2020 was $0.42. Non-GAAP diluted earnings per share in the second quarter of 2021 and 2020 were $1.62 and $0.40, respectively. Weighted average shares outstanding used for calculating GAAP and non-GAAP diluted earnings per share in the second quarter of 2021 were 235.2 million.

Second-Quarter Segment Results

Management uses net sales and segment operating income to evaluate the performance of the Company’s two segments, the orphan segment and the inflammation segment. While segment operating income contains certain adjustments to the directly comparable GAAP figures in the Company’s consolidated financial results, it is considered to be prepared in accordance with GAAP for purposes of presenting the Company’s segment operating results.

Orphan Segment

• Second-quarter 2021 net sales of the orphan segment, the Company’s strategic growth segment, were $746.5 million, an increase of 97 percent over the prior year’s quarter, driven by the strong relaunch execution of TEPEZZA, as well as strong year-over-year growth of KRYSTEXXA, RAVICTI and PROCYSBI. The orphan segment represented 90 percent of total second-quarter net sales.

• KRYSTEXXA second-quarter 2021 net sales increased 73 percent year-over-year driven by increased adoption of KRYSTEXXA plus immunomodulation, which now exceeds 40 percent. In addition, the Company continues to see strong uptake of KRYSTEXXA from both rheumatologists and nephrologists.

• Second-quarter 2021 orphan segment operating income was $321.2 million, which includes additional investment associated with TEPEZZA, UPLIZNA and the Company’s pipeline programs.

Inflammation Segment

• Second-quarter 2021 net sales of the inflammation segment were $86.0 million, and segment operating income was $46.8 million.

Cash Flow Statement and Balance Sheet Highlights

• On a GAAP basis, operating cash flow in the second quarter of 2021 was $89.4 million. Non-GAAP operating cash flow was $146.7 million.

• As of June 30, 2021, the Company had cash and cash equivalents of $812.3 million.

• As of June 30, 2021, the total principal amount of debt outstanding was $2.614 billion, and the gross-debt-to-last-12-months adjusted EBITDA leverage ratio was 2.3 times.

   

2021 Guidance

The Company now expects full-year 2021 net sales to range between $3.025 billion and $3.125 billion, representing 40 percent growth at the midpoint and an increase from the previous range of $2.75 billion and $2.85 billion. The company now expects TEPEZZA full-year 2021 net sales of greater than $1.550 billion with year-over-year growth of more than 50 percent in the fourth quarter, compared to the previous guidance of greater than $1.275 billion. The Company continues to expect KRYSTEXXA full-year 2021 net sales of greater than $500 million. Full-year 2021 adjusted EBITDA is now expected to range between $1.26 billion and $1.30 billion, representing 28 percent growth at the midpoint and an increase from the previous guidance range of $1.02 billion and $1.06 billion.

Webcast

At 8 a.m. EST / 1 p.m. IST today, the Company will host a live webcast to review its financial and operating results and provide a general business update. The live webcast and a replay may be accessed at http://ir.horizontherapeutics.com. Please connect to the Company's website at least 15 minutes prior to the live webcast to ensure adequate time for any software download that may be needed to access the webcast. A replay of the webcast will be available approximately two hours after the live webcast.

About Horizon

Horizon is focused on the discovery, development and commercialization of medicines that address critical needs for people impacted by rare, autoimmune and severe inflammatory diseases. Our pipeline is purposeful: we apply scientific expertise and courage to bring clinically meaningful therapies to patients. We believe science and compassion must work together to transform lives. For more information on how we go to incredible lengths to impact lives, please visit www.horizontherapeutics.com and follow us on Twitter, LinkedIn, Instagram and Facebook.

Note Regarding Use of Non-GAAP Financial Measures

EBITDA, or earnings before interest, taxes, depreciation and amortization, and adjusted EBITDA are used and provided by Horizon as non-GAAP financial measures. Horizon provides certain other financial measures such as non-GAAP net income, non-GAAP diluted earnings per share, non-GAAP gross profit and gross profit ratio, non-GAAP operating expenses, non-GAAP operating income, non-GAAP tax benefit and tax rate and non-GAAP operating cash flow, each of which include adjustments to GAAP figures. These non-GAAP measures are intended to provide additional information on Horizon’s performance, operations, expenses, profitability and cash flows. Adjustments to Horizon’s GAAP figures as well as EBITDA exclude acquisition and/or divestiture-related expenses, gain or loss from divestiture, gain or loss from sale of assets, upfront, progress and milestone payments related to license and collaboration agreements, litigation settlements, loss on debt extinguishment, costs of debt refinancing, drug manufacturing harmonization costs, restructuring and realignment costs, the income tax effect on pre-tax non-GAAP adjustments and other non-GAAP income tax adjustments, as well as non-cash items such as share-based compensation, depreciation and amortization, non-cash interest expense, long-lived asset impairment charges and other non-cash adjustments. Certain other special items or substantive events may also be included in the non-GAAP adjustments periodically when their magnitude is significant within the periods incurred. Horizon maintains an established non-GAAP cost policy that guides the determination of what costs will be excluded in non-GAAP measures. Horizon believes that these non-GAAP financial measures, when considered together with the GAAP figures, can enhance an overall understanding of Horizon’s financial and operating performance. The non-GAAP financial measures are included with the intent of providing investors with a more complete understanding of the Company’s historical and expected 2021 financial results and trends and to facilitate comparisons between periods and with respect to projected information. In addition, these non-GAAP financial measures are among the indicators Horizon’s management uses for planning and forecasting purposes and measuring the Company's performance. For example, adjusted EBITDA is used by Horizon as one measure of management performance under certain incentive compensation arrangements. These non-GAAP financial measures should be considered in addition to, and not as a substitute for, or superior to, financial measures calculated in accordance with GAAP. The non-GAAP financial measures used by the Company may be calculated differently from, and therefore may not be comparable to, non-GAAP financial measures used by other companies. Horizon has not provided a reconciliation of its full-year 2021 adjusted EBITDA outlook to an expected net income (loss) outlook because certain items such as acquisition/divestiture-related expenses and share-based compensation that are a component of net income (loss) cannot be reasonably projected due to the significant impact of changes in Horizon’s stock price, the variability associated with the size or timing of acquisitions/divestitures and other factors. These components of net income (loss) could significantly impact Horizon’s actual net income (loss).

Forward-Looking Statements

This press release contains forward-looking statements, including, but not limited to, statements related to Horizon’s full-year 2021 net sales and adjusted EBITDA guidance; expected financial performance and operating results in future periods, including potential growth in net sales of certain of Horizon’s medicines; development, manufacturing and commercialization plans; expected timing of clinical trials, studies and regulatory submissions; potential market opportunity for and benefits of Horizon’s medicines and medicine candidates; and business and other statements that are not historical facts. These forward-looking statements are based on Horizon’s current expectations and inherently involve significant risks and uncertainties. Actual results and the timing of events could differ materially from those anticipated in such forward-looking statements as a result of these risks and uncertainties, which include, without limitation, risks that Horizon’s actual future financial and operating results may differ from its expectations or goals; Horizon’s ability to grow net sales from existing medicines; impacts of the COVID-19 pandemic and actions taken to slow its spread, including impacts on supplies and net sales of Horizon’s medicines and potential delays in clinical trials; the fact that Horizon’s full-year 2021 net sales, adjusted EBITDA and TEPEZZA net sales guidance and the expected timing of certain TEPEZZA clinical trials assume that future committed manufacturing slots for TEPEZZA are not cancelled and are run successfully, which could be impacted by additional government-mandated COVID-19 vaccine production orders and other risks associated with the manufacture of biologic medicines; risks associated with acquisitions, such as the risk that the businesses will not be integrated successfully, that such integration may be more difficult, time-consuming or costly than expected or that the expected benefits of the transaction will not occur; the availability of coverage and adequate reimbursement and pricing from government and third-party payers; risks relating to Horizon’s ability to successfully implement its business strategies, including its manufacturing and global expansion strategy; risks inherent in developing novel medicine candidates and existing medicines for new indications; risks associated with regulatory approvals; risks in the ability to recruit, train and retain qualified personnel; competition, including potential generic competition; the ability to protect intellectual property and defend patents; regulatory obligations and oversight, including any changes in the legal and regulatory environment in which Horizon operates and those risks detailed from time-to-time under the caption "Risk Factors" and elsewhere in Horizon’s filings and reports with the SEC. Horizon undertakes no duty or obligation to update any forward-looking statements contained in this press release as a result of new information.