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2023 Total Revenue of $399.4M, a 21% Increase Year-over-Year Strong Patient Demand Continues for Pombiliti™ + Opfolda™ in the U.S., U.K., and Germany Projecting 2024 Galafold® Revenue Growth of 11-16% at CER Anticipating Full-Year Non-GAAP Profitability in 2024 Conference Call and Webcast Today at 8:30 a.m. ET PRINCETON, N.J., Feb. 28, 2024 (GLOBE NEWSWIRE) -- Amicus Therapeutics (Nasdaq: FOLD), a patient-dedicated global biotechnology company focused on developing and commercializing novel medicines for rare diseases, today announced financial results for the full-year ended December 31, 2023. “In 2023, Amicus made tremendous progress across all our strategic priorities,” said Bradley Campbell, President and Chief Executive Officer of Amicus Therapeutics, Inc. “We strengthened our leadership position in Fabry and Pompe disease globally and achieved our goal of non-GAAP profitability in the fourth quarter. Patient demand for Galafold exceeded our expectations and grew at the highest rate seen in the last four years and we continue to be excited by the long-term growth of this important medicine. We also successfully launched our second commercial therapy, Pombiliti + Opfolda, in the three largest Pompe disease markets. In 2024, we will continue to drive significant top line revenue growth supported by sustained double-digit Galafold performance and the successful ongoing global commercial launch of Pombiliti + Opfolda putting us on track for our first full year of non-GAAP profitability. Amicus is at a major inflection point and strongly positioned to continue to advance our mission of delivering groundbreaking new medicines to thousands of people living with rare diseases and creating value for our shareholders.” Corporate Highlights: Total revenues for the full-year 2023 were $399.4 million, up 21%, reflecting operational growth measured at constant exchange rates (CER)1 of 20% and favorable currency impact of $2.7 million or 1%. Fourth quarter total revenues were $115.1 million, up 31%, or 27% at CER. (in thousands)Three Months Ended December 31, Year over Year %Growth Twelve Months EndedDecember 31, Year over Year %Growth 2023 2022 Reported at CER1 2023 2022 Reported at CER1Galafold®106,600 87,989 21% 18% 387,777 329,046 18% 17%Pombiliti™+ Opfolda™8,482 107 n/a n/a 11,579 187 n/a n/aNet Product Revenues$115,082 $88,096 31% 27% $399,356 $329,233 21% 20% Galafold (migalastat) net product sales for the full-year 2023 were $387.8 million, representing a year-over-year increase of 18%, or 17% at CER. Fourth quarter net product sales were $106.6 million. At the end of 2023, there were >2,400 people living with Fabry disease on Galafold following a year of increased demand.Pombiliti (cipaglucosidase alfa-atga) + Opfolda (miglustat) net product sales for the full-year 2023 were $11.6 million. Fourth quarter net product sales were $8.5 million. The commercial launch of Pombiliti + Opfolda is underway in the three largest markets with 120 patients on treatment with commercial product or scheduled to be treated as of early January and continued strong patient demand.Eleven posters and an oral presentation highlighting Amicus’ development programs in Fabry disease and Pompe disease presented at the 20th Annual WORLDSymposium™. Pombiliti (cipaglucosidase alfa-atga) + Opfolda (miglustat) honored with the 2024 New Treatment Award, which recognizes important achievements in advancing new treatments approved for lysosomal diseases.On a GAAP basis, net loss in the fourth quarter of 2023 was $33.8 million. The Company achieved non-GAAP profitability3 in the fourth quarter of 2023 of $2.6 million. Full-Year 2023 Financial Results Total revenue in the full-year 2023 was $399.4 million, a year-over-year increase of 21% from total revenue of $329.2 million in the full-year 2022. On a constant currency basis, full-year 2023 total revenue growth was 20%. Reported revenue had a favorable currency impact of approximately $2.7 million, or 1%.Total GAAP operating expenses of $439.2 million for the full-year 2023 decreased by 13% as compared to $502.8 million for the full-year 2022.Total non-GAAP operating expenses of $341.6 million for the full-year 2023 decreased by 17% as compared to $413.2 million for the full-year 2022.GAAP net loss was $151.6 million, or $0.51 per share, for the full-year 2023, and was reduced compared to a net loss of $236.6 million, or $0.82 per share, for the full-year 2022.Non-GAAP net loss was $38.5 million, or $0.13 per share, for the full-year 2023, and was reduced compared to a net loss of $152.5 million, or $0.53 per share, for the full-year 2022.Cash, cash equivalents, and marketable securities totaled $286.2 million at December 31, 2023, compared to $293.6 million at December 31, 2022. 2024 Financial Guidance For the full-year 2024, the Company anticipates total Galafold revenue growth between 11% and 16% at CER1 driven by continued underlying demand from both switch and treatment-naïve patients, geographic expansion, label extensions, the continued diagnosis of new Fabry patients, and commercial execution across all major markets, including the U.S., EU, U.K., and Japan.Non-GAAP operating expense guidance for the full-year 2024 is $345 million to $365 million, driven by disciplined expense management offset by continued investment in Galafold, Pombiliti + Opfolda clinical studies, as well as global launch activities4. Amicus is focused on the following key strategic priorities in 2024: Delivering double-digit Galafold revenue growth (11-16% at CER)Executing multiple successful launches of Pombiliti + OpfoldaAdvancing ongoing studies to support medical and scientific leadership in Fabry and Pompe diseasesAchieving full year non-GAAP profitability2 1 In order to illustrate underlying performance, Amicus discusses its results in terms of constant exchange rate (CER) growth. This represents growth calculated as if the exchange rates had remained unchanged from those used in the comparative period. Full-year 2024 Galafold revenue guidance utilizes actual exchange rate as of December 31, 2023.2 Based on projections of Amicus’ non-GAAP Net (Loss) Income under current operating plans, which includes successful Pombiliti + Opfolda launches and continued Galafold growth. Amicus defines non-GAAP Net (Loss) Income as GAAP Net (Loss) Income excluding the impact of share-based compensation expense, changes in fair value of contingent consideration, loss on impairment of assets, depreciation and amortization, acquisition related income (expense), loss on extinguishment of debt, restructuring charges and income taxes.3 Full reconciliation of GAAP results to the Company’s non-GAAP adjusted measures for all reporting periods appear in the tables to this press release.4 A reconciliation of the differences between the non-GAAP expectation and the corresponding GAAP measure is not available without unreasonable effort due to high variability, complexity, and low visibility as to the items that would be excluded from the GAAP measure. Conference Call and WebcastAmicus Therapeutics will host a conference call and audio webcast today, February 28, 2024, at 8:30 a.m. ET to discuss the full-year 2023 financial results and corporate updates. Participants and investors interested in accessing the call by phone will need to register using the online registration form. After registering, all phone participants will receive a dial-in number along with a personal PIN number to access the event. A live audio webcast and related presentation materials can also be accessed via the Investors section of the Amicus Therapeutics corporate website at ir.amicusrx.com. Web participants are encouraged to register on the website 15 minutes prior to the start of the call. An archived webcast and accompanying slides will be available on the Company's website shortly after the conclusion of the live event. About Galafold Galafold® (migalastat) 123 mg capsules is an oral pharmacological chaperone of alpha-Galactosidase A (alpha-Gal A) for the treatment of Fabry disease in adults who have amenable galactosidase alpha gene (GLA) variants. In these patients, Galafold works by stabilizing the body’s own dysfunctional enzyme so that it can clear the accumulation of disease substrate. Globally, Amicus Therapeutics estimates that approximately 35 to 50 percent of people living with Fabry disease may have amenable GLA variants, though amenability rates within this range vary by geography. Galafold is approved in more than 40 countries around the world, including the U.S., EU, U.K., and Japan. U.S. INDICATIONS AND USAGEGalafold is indicated for the treatment of adults with a confirmed diagnosis of Fabry disease and an amenable galactosidase alpha gene (GLA) variant based on in vitro assay data. This indication is approved under accelerated approval based on reduction in kidney interstitial capillary cell globotriaosylceramide (KIC GL-3) substrate. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials. U.S. IMPORTANT SAFETY INFORMATION ADVERSE REACTIONSThe most common adverse reactions reported with Galafold (≥10%) were headache, nasopharyngitis, urinary tract infection, nausea and pyrexia. USE IN SPECIFIC POPULATIONSThere is insufficient clinical data on Galafold use in pregnant women to inform a drug-associated risk for major birth defects and miscarriage. Advise women of the potential risk to a fetus. It is not known if Galafold is present in human milk. Therefore, the developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for Galafold and any potential adverse effects on the breastfed child from Galafold or from the underlying maternal condition. Galafold is not recommended for use in patients with severe renal impairment or end-stage renal disease requiring dialysis. The safety and effectiveness of Galafold have not been established in pediatric patients. To report Suspected Adverse Reactions, contact Amicus Therapeutics at 1-877-4AMICUS or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. For additional information about Galafold, including the full U.S. Prescribing Information, please visit https://www.amicusrx.com/pi/Galafold.pdf. About Pombiliti + OpfoldaPombiliti + Opfolda, is a two-component therapy that consists of cipaglucosidase alfa-atga, a bis-M6P-enriched rhGAA that facilitates high-affinity uptake through the M6P receptor while retaining its capacity for processing into the most active form of the enzyme, and the oral enzyme stabilizer, miglustat, that’s designed to reduce loss of enzyme activity in the blood. U.S. INDICATIONS AND USAGEPOMBILITI in combination with OPFOLDA is indicated for the treatment of adult patients with late-onset Pompe disease (lysosomal acid alpha-glucosidase [GAA] deficiency) weighing ≥40 kg and who are not improving on their current enzyme replacement therapy (ERT). SAFETY INFORMATION HYPERSENSITIVITY REACTIONS INCLUDING ANAPHYLAXIS: Appropriate medical support measures, including cardiopulmonary resuscitation equipment, should be readily available. If a severe hypersensitivity reaction occurs, POMBILITI should be discontinued immediately and appropriate medical treatment should be initiated. INFUSION-ASSOCIATED REACTIONS (IARs): If severe IARs occur, immediately discontinue POMBILITI and initiate appropriate medical treatment. RISK OF ACUTE CARDIORESPIRATORY FAILURE IN SUSCEPTIBLE PATIENTS: Patients susceptible to fluid volume overload, or those with acute underlying respiratory illness or compromised cardiac or respiratory function, may be at risk of serious exacerbation of their cardiac or respiratory status during POMBILITI infusion. See PI for complete Boxed Warning. CONTRAINDICATION: POMBILITI in combination with Opfolda is contraindicated in pregnancy. EMBRYO-FETAL TOXICITY: May cause embryo-fetal harm. Advise females of reproductive potential of the potential risk to a fetus and to use effective contraception during treatment and for at least 60 days after the last dose. Adverse Reactions: Most common adverse reactions ≥ 5% are headache, diarrhea, fatigue, nausea, abdominal pain, and pyrexia. Please see full PRESCRIBING INFORMATION, including BOXED WARNING, for POMBILITI (cipaglucosidase alfa-atga) LINK and full PRESCRIBING INFORMATION for OPFOLDA (miglustat) LINK. About Amicus Therapeutics Amicus Therapeutics (Nasdaq: FOLD) is a global, patient-dedicated biotechnology company focused on discovering, developing and delivering novel high-quality medicines for people living with rare diseases. With extraordinary patient focus, Amicus Therapeutics is committed to advancing and expanding a pipeline of cutting-edge, first- or best-in-class medicines for rare diseases. For more information please visit the company’s website at www.amicusrx.com, and follow on X and LinkedIn. Non-GAAP Financial Measures In addition to financial information prepared in accordance with U.S. GAAP, this press release also contains adjusted financial measures that we believe provide investors and management with supplemental information relating to operating performance and trends that facilitate comparisons between periods and with respect to projected information. These adjusted financial measures are non-GAAP measures and should be considered in addition to, but not as a substitute for, the information prepared in accordance with U.S. GAAP. We use these non-GAAP measures as key performance measures for the purpose of evaluating operational performance and cash requirements internally. We typically exclude certain GAAP items that management does not believe affect our basic operations and that do not meet the GAAP definition of unusual or non-recurring items. Other companies may define these measures in different ways. When we provide our expectation for non-GAAP operating expenses and profitability on a forward-looking basis, a reconciliation of the differences between the non-GAAP expectation and the corresponding GAAP measure generally is not available without unreasonable effort due to potentially high variability, complexity and low visibility as to the items that would be excluded from the GAAP measure in the relevant future period, such as unusual gains or losses. The variability of the excluded items may have a significant, and potentially unpredictable, impact on our future GAAP results. Forward Looking StatementThis press release contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995 relating to preclinical and clinical development of our product candidates, the timing and reporting of results from preclinical studies and clinical trials, the prospects and timing of the potential regulatory approval of our product candidates, commercialization plans, manufacturing and supply plans, financing plans, and the projected revenues and cash position for the Company. The inclusion of forward-looking statements should not be regarded as a representation by us that any of our plans will be achieved. Any or all of the forward-looking statements in this press release may turn out to be wrong and can be affected by inaccurate assumptions we might make or by known or unknown risks and uncertainties. For example, with respect to statements regarding the goals, progress, timing, and outcomes of discussions with regulatory authorities and pricing and reimbursement authorities, are based on current information. Actual results may differ materially from those set forth in this release due to the risks and uncertainties inherent in our business, including, without limitation: the potential that results of clinical or preclinical studies indicate that the product candidates are unsafe or ineffective; the potential that it may be difficult to enroll patients in our clinical trials; the potential that regulatory authorities may not grant or may delay approval for our product candidates; the potential that required regulatory inspections may be delayed or not be successful and delay or prevent product approval; the potential that we may not be successful in negotiations with pricing and reimbursement authorities; the potential that we may not be successful in commercializing Galafold and/or Pombiliti and Opfolda in Europe, the UK, the US and other geographies; the potential that preclinical and clinical studies could be delayed because we identify serious side effects or other safety issues; the potential that we may not be able to manufacture or supply sufficient clinical or commercial products; and the potential that we will need additional funding to complete all of our studies, the manufacturing, and commercialization of our products. With respect to statements regarding corporate financial guidance and financial goals and the expected attainment of such goals and projections of the Company's revenue, non-GAAP profitability and cash position, actual results may differ based on market factors and the Company's ability to execute its operational and budget plans. In addition, all forward-looking statements are subject to other risks detailed in our Annual Report on Form 10-K for the year ended December 31, 2023 to be filed today. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. All forward-looking statements are qualified in their entirety by this cautionary statement, and we undertake no obligation to revise or update this news release to reflect events or circumstances after the date hereof. CONTACT: Investors: Amicus Therapeutics Andrew FaughnanVice President, Investor Relationsafaughnan@amicusrx.com(609) 662-3809 Media: Amicus Therapeutics Diana Moore Head of Global Corporate Affairs and Communicationsdmoore@amicusrx.com(609) 662-5079 FOLD-G TABLE 1 Amicus Therapeutics, Inc.Consolidated Statements of Operations(in thousands, except share and per share amounts) Years Ended December 31, 2023 2022 2021 Net product sales$399,356 $329,233 $305,514 Cost of goods sold 37,326 38,599 34,466 Gross profit 362,030 290,634 271,048 Operating expenses: Research and development 152,381 276,677 272,049 Selling, general, and administrative 275,270 213,041 192,710 Changes in fair value of contingent consideration payable 2,583 1,078 6,514 Loss on impairment of assets 1,134 6,616 — Depreciation and amortization 7,873 5,342 6,209 Total operating expenses 439,241 502,754 477,482 Loss from operations (77,211) (212,120) (206,434)Other (expense) income: Interest income 7,078 3,024 509 Interest expense (50,149) (37,119) (32,471)Loss on extinguishment of debt (13,933) — (257)Other (expense) income (15,886) 4,176 (2,901)Loss before income tax (150,101) (242,039) (241,554)Income tax (expense) benefit (1,483) 5,471 (8,906)Net loss attributable to common stockholders$(151,584) $(236,568) $(250,460)Net loss attributable to common stockholders per common share — basic and diluted$(0.51) $(0.82) $(0.92)Weighted-average common shares outstanding — basic and diluted 295,164,515 289,057,198 271,421,986 TABLE 2 Amicus Therapeutics, Inc.Consolidated Balance Sheets(in thousands, except share and per share amounts) December 31, 2023 2022 Assets Current assets: Cash and cash equivalents$246,994 $148,813 Investments in marketable securities 39,206 144,782 Accounts receivable 87,632 66,196 Inventories 59,696 23,816 Prepaid expenses and other current assets 49,533 40,209 Total current assets 483,061 423,816 Operating lease right-of-use assets, net 26,312 29,534 Property and equipment, less accumulated depreciation of $25,429 and $22,281 at December 31, 2023 and 2022, respectively 31,667 30,778 Intangible assets, less accumulated amortization of $2,510 and $0 at December 31, 2023 and December 31, 2022, respectively 20,490 23,000 Goodwill 197,797 197,797 Other non-current assets 18,553 19,242 Total Assets$777,880 $724,167 Liabilities and Stockholders' Equity Current liabilities: Accounts payable$15,120 $15,413 Accrued expenses and other current liabilities 144,245 93,636 Contingent consideration payable — 21,417 Operating lease liabilities 8,324 8,552 Total current liabilities 167,689 139,018 Long-term debt 387,858 391,990 Operating lease liabilities 48,877 51,578 Other non-current liabilities 13,282 18,534 Total liabilities 617,706 601,120 Commitments and contingencies Stockholders' equity: Common stock, $0.01 par value, 500,000,000 shares authorized, 293,594,209 and 281,108,273 shares issued and outstanding at December 31, 2023 and 2022, respectively 2,918 2,815 Additional paid-in capital 2,836,018 2,664,744 Accumulated other comprehensive gain (loss): Foreign currency translation adjustment 5,429 (11,989)Unrealized loss on available-for-sale securities (188) (116)Warrants 71 83 Accumulated deficit (2,684,074) (2,532,490)Total stockholders' equity 160,174 123,047 Total Liabilities and Stockholders' Equity$777,880 $724,167 TABLE 3 Amicus Therapeutics, Inc.Reconciliation of Non-GAAP Financial Measures(in thousands)(Unaudited) Years Ended December 31, 2023 2022 2021Total GAAP operating expenses $439,241 $502,754 $477,482Research and development: Share-based compensation 21,469 25,089 17,340Selling, general and administrative: Share-based compensation 64,608 51,423 40,498Loss on impairment of assets 1,134 6,616 —Changes in fair value of contingent consideration payable 2,583 1,078 6,514Depreciation and amortization 7,873 5,342 6,209Total Non-GAAP operating expense adjustments 97,667 89,548 70,561Total Non-GAAP operating expenses $341,574 $413,206 $406,921 TABLE 4 Amicus Therapeutics, Inc.Reconciliation of Non-GAAP Financial Measures(in thousands, except share and per share amounts)(Unaudited) Three Months EndedDecember 31, Years EndedDecember 31, 2023 2022 2023 2022 GAAP net loss $(33,843) $(55,865) $(151,584) $(236,568)Share-based compensation 18,095 18,626 86,077 76,512 Loss on impairment of assets — — 1,134 6,616 Changes in fair value of contingent consideration payable — 1,584 2,583 1,078 Depreciation and amortization 2,182 1,311 7,873 5,342 Loss on extinguishment of debt 13,933 — 13,933 — Income tax expense (benefit) 2,183 (14,214) 1,483 (5,471)Non-GAAP net income (loss) $2,550 $(48,558) $(38,501) $(152,491) Non-GAAP net income (loss) attributable to common stockholders per common share — basic and diluted $0.01 $(0.17) $(0.13) $(0.53)Weighted-average common shares outstanding — basic and diluted 300,648,503 289,602,648 295,164,515 289,057,198

PRINCETON, N.J., Feb. 08, 2024 (GLOBE NEWSWIRE) -- Amicus Therapeutics, Inc. (Nasdaq: FOLD), today announced that WORLDSymposium™ has awarded Pombiliti™ (cipaglucosidase alfa-atga) + Opfolda™ (miglustat) the 2024 New Treatment Award, which recognizes important achievements in advancing treatments for lysosomal diseases which have attained regulatory approval. “We are honored that WORLDSymposium has recognized Pombiliti and Opfolda with the 2024 New Treatment Award,” said Bradley Campbell, President and Chief Executive Officer of Amicus Therapeutics, Inc. “It is a testament to more than a decade of dedication and commitment from Team Amicus along with dozens of families, physicians, researchers, and advocates around the world who worked tirelessly to see this medicine approved. Their partnership has been pivotal in continuing our promise to lead the fight in rare diseases, and we share this award with the entire global Pompe disease community.” Pombiliti + Opfolda is the first and only two-component therapy approved by the U.S. Food and Drug Administration (FDA) for adults with late-onset Pompe disease weighing ≥40 kg and who are not improving on their current enzyme replacement therapy (ERT). Pombiliti + Opfolda is a unique two-component therapy. Pombiliti is a recombinant human GAA enzyme (rhGAA) naturally expressed with high levels of bis-M6P (Mannose 6-Phosphate), designed for increased uptake into muscle cells. Once in the cell, Pombiliti can be properly processed into its most active and mature form to break down glycogen. Opfolda is an enzyme stabilizer designed to stabilize the enzyme in the blood. Late-onset Pompe disease is a rare, debilitating, and life-threatening lysosomal disorder caused by a deficiency of the enzyme acid alpha-glucosidase (GAA). Reduced levels of GAA lead to the accumulation of the substrate glycogen in the lysosomes of muscle cells and glycogen buildup causes muscle damage. Disease severity ranges across a spectrum, with predominant manifestations such as skeletal muscle weakness and progressive respiratory involvement. This is the second WORLDSymposium™ New Treatment Award presented to Amicus. Amicus received the award in 2017 for the first and only oral therapy approved for people living with Fabry disease. About Pombiliti + Opfolda Pombiliti + Opfolda, is a two-component therapy that consists of cipaglucosidase alfa-atga, a bis-M6P-enriched rhGAA that facilitates high-affinity uptake through the M6P receptor while retaining its capacity for processing into the most active form of the enzyme, and the oral enzyme stabilizer, miglustat, that’s designed to reduce loss of enzyme activity in the blood. U.S. INDICATIONSANDUSAGE POMBILITI in combination with OPFOLDA is indicated for the treatment of adult patients with late-onset Pompe disease (lysosomal acid alpha-glucosidase [GAA] deficiency) weighing ≥40 kg and who are not improving on their current enzyme replacement therapy (ERT). SAFETY INFORMATION HYPERSENSITIVITY REACTIONS INCLUDING ANAPHYLAXIS: Appropriate medical support measures, including cardiopulmonary resuscitation equipment, should be readily available. If a severe hypersensitivity reaction occurs, POMBILITI should be discontinued immediately and appropriate medical treatment should be initiated. INFUSION-ASSOCIATED REACTIONS (IARs): If severe IARs occur, immediately discontinue POMBILITI and initiate appropriate medical treatment. RISK OF ACUTE CARDIORESPIRATORY FAILURE IN SUSCEPTIBLE PATIENTS: Patients susceptible to fluid volume overload, or those with acute underlying respiratory illness or compromised cardiac or respiratory function, may be at risk of serious exacerbation of their cardiac or respiratory status during POMBILITI infusion. See PI for complete Boxed Warning. CONTRAINDICATION: POMBILITI in combination with Opfolda is contraindicated in pregnancy. EMBRYO-FETAL TOXICITY: May cause embryo-fetal harm. Advise females of reproductive potential of the potential risk to a fetus and to use effective contraception during treatment and for at least 60 days after the last dose. Adverse Reactions: Most common adverse reactions ≥ 5% are headache, diarrhea, fatigue, nausea, abdominal pain, and pyrexia. Please see full PRESCRIBING INFORMATION, including BOXED WARNING, for POMBILITI (cipaglucosidase alfa-atga) LINK and full PRESCRIBING INFORMATION for OPFOLDA (miglustat) LINK. About Amicus Therapeutics Amicus Therapeutics (Nasdaq: FOLD) is a global, patient-dedicated biotechnology company focused on discovering, developing and delivering novel high-quality medicines for people living with rare diseases. With extraordinary patient focus, Amicus Therapeutics is committed to advancing and expanding a pipeline of cutting-edge, first- or best-in-class medicines for rare diseases. For more information please visit the company’s website at , and follow on Twitter and LinkedIn. PP-AT-ALL-0002-0224 CONTACTS: Investors: Amicus Therapeutics Andrew Faughnan Vice President, Investor Relations afaughnan@amicusrx.com (609) 662-3809 Media: Amicus Therapeutics Diana Moore Head of Global Corporate Affairs and Communications dmoore@amicusrx.com (609) 662-5079 FOLD–G

2023 Total Revenue of ~$399.4M, a 21% Increase Year-Over-Year >2,400 People Living with Fabry Disease on Galafold® Following a Year of Increased Demand Expecting 2024 Galafold Revenue Growth of 11-16% at CER Successful Launches of Pombiliti™ + Opfolda™ Underway in the U.S., U.K., and Germany PRINCETON, N.J., Jan. 07, 2024 (GLOBE NEWSWIRE) -- Amicus Therapeutics (Nasdaq: FOLD), a patient-dedicated global biotechnology company focused on developing and commercializing novel medicines for rare diseases, today provided its preliminary and unaudited 2023 revenue, corporate updates, and full-year 2024 outlook. In 2023, Amicus met or exceeded its strategic priorities, highlighted by: Sustaining double-digit Galafold revenue growthSecuring FDA, EMA, and MHRA approvals for Pombiliti + OpfoldaInitiating successful global launches of Pombiliti + OpfoldaAdvancing next-generation pipeline programsOn-track to achieving non-GAAP profitability in the fourth quarter of 2023 Preliminary and Unaudited 2023 Revenue: Total revenue in 2023 reached ~$399.4 million, representing a year-over-year increase of 21%, reflecting strong operational growth measured at constant exchange rates (CER)1 of 20% and a favorable currency impact of approximately $2.7 million, or 1%. Fourth quarter total revenue was ~$115.1 million.Galafold (migalastat) net product sales in 2023 were ~$387.8 million, representing a year-over-year increase of 18%, or 17% at CER. Fourth quarter Galafold net product sales were ~$106.6 million.Pombiliti (cipaglucosidase alfa-atga) + Opfolda (miglustat) net product sales in 2023 were ~$11.6 million. The commercial launch of Pombiliti + Opfolda is successfully underway in the three largest markets with ~120 patients on treatment with commercial product or scheduled to be treated as of the end of 2023. Fourth quarter Pombiliti + Opfolda net product sales were ~$8.5 million. Bradley Campbell, President and Chief Executive Officer of Amicus Therapeutics, Inc., stated, “Last year was an incredible year for Amicus highlighted by the continued double-digit growth of Galafold sales and the global regulatory approvals of our second commercial therapy, which is off to a fantastic launch. We expect 2024 to be a truly transformative year as we continue to drive significant revenue growth by treating an increasing number of Fabry patients globally, executing on the global launches of Pombiliti and Opfolda, which we believe has the potential to become the standard of care in a >$1B market today, and delivering our first full year of non-GAAP profitability. We look forward to reporting on our progress throughout this year as we further our mission for people living with rare diseases.” Amicus is focused on the following four key strategic priorities in 2024: Delivering double-digit Galafold revenue growth (11-16% at CER)Ensuring the successful global launches of Pombiliti + OpfoldaAdvancing ongoing studies to support medical and scientific leadership in Fabry and Pompe diseasesAchieving full year non-GAAP profitability2 Mr. Campbell will discuss the Amicus corporate objectives and key milestones in a presentation at the 42nd Annual J.P. Morgan Healthcare Conference on Monday, January 8, 2024, at 2:15 p.m. PT. A live webcast of the presentation can be accessed through the Investors section of the Amicus Therapeutics corporate website at http://ir.amicusrx.com/events.cfm, and will be archived for 90 days. 1 In order to illustrate underlying performance, Amicus discusses its results in terms of constant exchange rate (CER) growth. This represents growth calculated as if the exchange rates had remained unchanged from those used in the comparative period. Full-year 2024 Galafold revenue guidance utilizes actual exchange rate as of December 31, 2023.2 Non-GAAP Net Income defined as GAAP Net Income excluding the impact of share-based compensation expense, changes in fair value of contingent consideration, loss on impairment of assets, depreciation and amortization, acquisition related income (expense), loss on extinguishment of debt, loss on impairment of assets, restructuring charges, and income taxes. About GalafoldGalafold® (migalastat) 123 mg capsules is an oral pharmacological chaperone of alpha-Galactosidase A (alpha-Gal A) for the treatment of Fabry disease in adults who have amenable galactosidase alpha gene (GLA) variants. In these patients, Galafold works by stabilizing the body’s own dysfunctional enzyme so that it can clear the accumulation of disease substrate. Globally, Amicus Therapeutics estimates that approximately 35 to 50 percent of people living with Fabry disease may have amenable GLA variants, though amenability rates within this range vary by geography. Galafold is approved in more than 40 countries around the world, including the U.S., EU, U.K., and Japan. U.S. INDICATIONS AND USAGE Galafold is indicated for the treatment of adults with a confirmed diagnosis of Fabry disease and an amenable galactosidase alpha gene (GLA) variant based on in vitro assay data. This indication is approved under accelerated approval based on reduction in kidney interstitial capillary cell globotriaosylceramide (KIC GL-3) substrate. Continued approval for this indication may be contingent upon verification and description of clinical benefit in confirmatory trials. U.S. IMPORTANT SAFETY INFORMATION ADVERSE REACTIONS The most common adverse drug reactions reported with Galafold (≥10 %) are headache, nasopharyngitis, urinary tract infection, nausea, and pyrexia. DRUG INTERACTIONS Avoid co-administration of Galafold with caffeine at least 2 hours before and 2 hours after taking Galafold. USE IN SPECIFIC POPULATIONSThere is insufficient clinical data on Galafold use in pregnant women to inform a drug-associated risk for major birth defects and miscarriage. Advise women of the potential risk to a fetus. It is not known if Galafold is present in human milk. Therefore, the developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for Galafold and any potential adverse effects on the breastfed child from Galafold or from the underlying maternal condition.Galafold is not recommended for use in patients with severe renal impairment or end-stage renal disease requiring dialysis. The safety and effectiveness of Galafold have not been established in pediatric patients. To report Suspected Adverse Reactions, contact Amicus Therapeutics at 1-877-4AMICUS or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. For additional information about Galafold, including the full U.S. Prescribing Information, please visit https://www.amicusrx.com/pi/Galafold.pdf. EU Therapeutic IndicationGalafold® (migalastat) is indicated for long-term treatment of adults and adolescents aged 12 years and older with a confirmed diagnosis of Fabry disease (α-galactosidase A deficiency) and who have an amenable mutation. EU Important Safety InformationTreatment with Galafold should be initiated and supervised by specialist physicians experienced in the diagnosis and treatment of Fabry disease. Galafold is not intended for concomitant use with enzyme replacement therapy. The safety and efficacy of Galafold in children aged less than 12 years have not been established. No data are available. Galafold is contraindicated in patients with hypersensitivity to the active substance or to any of the excipients listed in the Summary of Product Characteristics (SmPC). Galafold 123 mg capsules are not for children (≥12 years) weighing less than 45 kg. It is advised to periodically monitor renal function, echocardiographic parameters and biochemical markers (every 6 months) in patients initiated on or switched to Galafold. In case of meaningful clinical deterioration, further clinical evaluation or discontinuation of treatment with Galafold should be considered. Galafold is not indicated for use in patients with non-amenable mutations. Galafold is not recommended for use in patients with severe renal insufficiency, defined as estimated GRF less than 30 mL/min/1.73m2. Food and caffeine should not be consumed at least 2 hours before and 2 hours after taking Galafold to give a minimum 4 hours fast. Galafold is not recommended in women of childbearing potential not using contraception. Galafold is not recommended during pregnancy. It is not known whether Galafold is secreted in human milk. The most common adverse reaction reported was headache, which was experienced by approximately 10% of patients who received Galafold. For a complete list of adverse reactions, please review the SmPC. OVERDOSE: General medical care is recommended in the case of Galafold overdose. For complete information please see the EU SmPC available at https://www.ema.europa.eu/en/medicines/human/EPAR/galafold About Pombiliti + OpfoldaPombiliti + Opfolda, is a two-component therapy that consists of cipaglucosidase alfa-atga, a bis-M6P-enriched rhGAA that facilitates high-affinity uptake through the M6P receptor while retaining its capacity for processing into the most active form of the enzyme, and the oral enzyme stabilizer, miglustat, that’s designed to reduce loss of enzyme activity in the blood. U.S. INDICATIONS AND USAGEPOMBILITI in combination with OPFOLDA is indicated for the treatment of adult patients with late-onset Pompe disease (lysosomal acid alpha-glucosidase [GAA] deficiency) weighing ≥40 kg and who are not improving on their current enzyme replacement therapy (ERT). SAFETY INFORMATION HYPERSENSITIVITY REACTIONS INCLUDING ANAPHYLAXIS: Appropriate medical support measures, including cardiopulmonary resuscitation equipment, should be readily available. If a severe hypersensitivity reaction occurs, POMBILITI should be discontinued immediately and appropriate medical treatment should be initiated. INFUSION-ASSOCIATED REACTIONS (IARs): If severe IARs occur, immediately discontinue POMBILITI and initiate appropriate medical treatment. RISK OF ACUTE CARDIORESPIRATORY FAILURE IN SUSCEPTIBLE PATIENTS: Patients susceptible to fluid volume overload, or those with acute underlying respiratory illness or compromised cardiac or respiratory function, may be at risk of serious exacerbation of their cardiac or respiratory status during POMBILITI infusion. See PI for complete Boxed Warning. CONTRAINDICATION: POMBILITI in combination with Opfolda is contraindicated in pregnancy. EMBRYO-FETAL TOXICITY: May cause embryo-fetal harm. Advise females of reproductive potential of the potential risk to a fetus and to use effective contraception during treatment and for at least 60 days after the last dose. Adverse Reactions: Most common adverse reactions ≥ 5% are headache, diarrhea, fatigue, nausea, abdominal pain, and pyrexia. Please see full PRESCRIBING INFORMATION, including BOXED WARNING, for POMBILITI (cipaglucosidase alfa-atga) LINK and full PRESCRIBING INFORMATION for OPFOLDA (miglustat) LINK. EU Important Safety InformationPombiliti (cipaglucosidase alfa) Important Safety Information Posology and Method of Administration: Pombiliti must be used in combination with miglustat 65 mg hard capsules. The recommended dose of Pombiliti is 20 mg/kg of body weight every other week. The Pombiliti infusion should start 1 hour after taking miglustat capsules. Paediatric population: The safety and efficacy of Pombiliti in combination with miglustat therapy in paediatric patients less than 18 years old have not yet been established. No data are available. Contraindications: Life-threatening hypersensitivity to the active substance, or to any of the excipients. Contraindication to miglustat. Anaphylaxis and infusion-associated reactions (IARs): Serious anaphylaxis and IARs have occurred in some patients during infusion and following infusion with Pombiliti. Premedication with oral antihistamine, antipyretics, and/or corticosteroids may be administered to assist with signs and symptoms related to IARs experienced with prior enzyme replacement therapy (ERT) treatment. Reduction of the infusion rate, temporary interruption of the infusion, symptomatic treatment with oral antihistamine, or antipyretics, and appropriate resuscitation measures should be considered to manage serious IARs. If anaphylaxis or severe allergic reactions occur, infusion should be immediately paused, and appropriate medical treatment should be initiated. The current medical standards for emergency treatment of anaphylactic reactions are to be observed and cardiopulmonary resuscitation equipment should be readily available. The risks and benefits of re-administering Pombiliti following anaphylaxis or severe allergic reaction should be carefully considered, and appropriate resuscitation measures made available. Risk of acute cardiorespiratory failure in susceptible patients: Patients with acute underlying respiratory illness or compromised cardiac and/or respiratory function may be at risk of serious exacerbation of their cardiac or respiratory compromise during infusions. Appropriate medical support and monitoring measures should be readily available during Pombiliti infusion. Immune complex-related reactions: Immune complex-related reactions have been reported with other ERTs in patients who had high IgG antibody titres, including severe cutaneous reactions and nephrotic syndrome. If immune complex-related reactions occur, discontinuation of the administration of Pombiliti should be considered and appropriate medical treatment should be initiated. The risks and benefits of re-administering Pombiliti following an immune complex-related reaction should be reconsidered for each individual patient. Contraception in females: Reliable contraceptive measures must be used by women of childbearing potential during treatment with Pombiliti in combination with miglustat, and for 4 weeks after discontinuing treatment. Pregnancy: Pombiliti in combination with miglustat therapy is not recommended during pregnancy. Breast feeding: It is not known if Pombiliti and miglustat are secreted in human breast milk. A decision must be made whether to discontinue breast-feeding or to discontinue/abstain from Pombiliti in combination with miglustat therapy, taking into account the benefit of breast-feeding for the child and the benefit of therapy for the woman. Summary of the safety profile: The most commonly reported adverse reactions only attributable to Pombiliti were chills (4.0%), dizziness (2.6%), flushing (2.0%), somnolence (2.0%), chest discomfort (1.3%), cough, (1.3%), infusion site swelling (1.3%), and pain (1.3%). Reported serious adverse reactions only attributable to Pombiliti were urticaria (2.0%), anaphylaxis (1.3%), pyrexia (0.7%), presyncope (0.7%), dyspnoea (0.7%), pharyngeal oedema (0.7%), wheezing (0.7%), and hypotension (0.7%). Refer to SmPC for full list. Opfolda (miglustat) 65 mg hard capsules Important Safety Information Posology and Method of Administration: Opfolda must be used in combination with Pombiliti. The recommended dose is to be taken orally every other week and is based on body weight. Opfolda should be taken approximately 1 hour but no more than 3 hours before the start of the Pombiliti infusion. Paediatric population: The safety and efficacy of Opfolda in combination with Pombiliti therapy in paediatric patients less than 18 years old have not yet been established. No data are available. Contraindications: Hypersensitivity to the active substance or to any of the excipients. Contraindication to cipaglucosidase alfa. Food Interaction: Patients should fast for 2 hours before and 2 hours after taking Opfolda. Contraception in females: Reliable contraceptive measures must be used by women of childbearing potential during treatment with Opfolda in combination with Pombiliti, and for 4 weeks after discontinuing treatment. Pregnancy: Opfolda crosses the placenta. Opfolda in combination with Pombiliti therapy is not recommended during pregnancy. Breast feeding: It is not known if Opfolda and Pombiliti are secreted in human breast milk. A decision must be made whether to discontinue breast-feeding or to discontinue/abstain from Opfolda in combination with Pombiliti therapy, taking into account the benefit of breastfeeding for the child and the benefit of therapy for the woman. Summary of the safety profile: The most commonly reported adverse reaction only attributable to Opfolda 65 mg was constipation (1.3%). Refer to SmPC for full list. About Amicus Therapeutics Amicus Therapeutics (Nasdaq: FOLD) is a global, patient-dedicated biotechnology company focused on discovering, developing and delivering novel high-quality medicines for people living with rare diseases. With extraordinary patient focus, Amicus Therapeutics is committed to advancing and expanding a pipeline of cutting-edge, first- or best-in-class medicines for rare diseases. For more information please visit the company’s website at www.amicusrx.com, and follow on X and LinkedIn. Non-GAAP Financial Measures In addition to financial information prepared in accordance with U.S. GAAP, this press release also contains adjusted financial measures that we believe provide investors and management with supplemental information relating to operating performance and trends that facilitate comparisons between periods and with respect to projected information. These adjusted financial measures are non-GAAP measures and should be considered in addition to, but not as a substitute for, the information prepared in accordance with U.S. GAAP. We typically exclude certain GAAP items that management does not believe affect our basic operations and that do not meet the GAAP definition of unusual or non-recurring items. Other companies may define these measures in different ways. When we provide our expectation for non-GAAP operating expenses on a forward-looking basis, a reconciliation of the differences between the non-GAAP expectation and the corresponding GAAP measure generally is not available without unreasonable effort due to potentially high variability, complexity and low visibility as to the items that would be excluded from the GAAP measure in the relevant future period, such as unusual gains or losses. The variability of the excluded items may have a significant, and potentially unpredictable, impact on our future GAAP results. Forward Looking Statement This press release contains "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995 relating to preclinical and clinical development of our product candidates, the timing and reporting of results from preclinical studies and clinical trials, the prospects and timing of the potential regulatory approval of our product candidates, commercialization plans, manufacturing and supply plans, financing plans, and the projected revenues and cash position for the Company. The inclusion of forward-looking statements should not be regarded as a representation by us that any of our plans will be achieved. Any or all of the forward-looking statements in this press release may turn out to be wrong and can be affected by inaccurate assumptions we might make or by known or unknown risks and uncertainties. For example, with respect to statements regarding the goals, progress, timing, and outcomes of discussions with regulatory authorities and pricing and reimbursement authorities, are based on current information. Actual results may differ materially from those set forth in this release due to the risks and uncertainties inherent in our business, including, without limitation: the potential that results of clinical or preclinical studies indicate that the product candidates are unsafe or ineffective; the potential that it may be difficult to enroll patients in our clinical trials; the potential that regulatory authorities may not grant or may delay approval for our product candidates; the potential that required regulatory inspections may be delayed or not be successful and delay or prevent product approval; the potential that we may not be successful in negotiations with pricing and reimbursement authorities; the potential that we may not be successful in commercializing Galafold and/or Pombiliti and Opfolda in Europe, the UK, the US and other geographies; the potential that preclinical and clinical studies could be delayed because we identify serious side effects or other safety issues; the potential that we may not be able to manufacture or supply sufficient clinical or commercial products; and the potential that we will need additional funding to complete all of our studies, the manufacturing, and commercialization of our products. With respect to statements regarding corporate financial guidance and financial goals and the expected attainment of such goals and projections of the Company's revenue, non-GAAP profitability and cash position, actual results may differ based on market factors and the Company's ability to execute its operational and budget plans. In addition, all forward-looking statements are subject to other risks detailed in our Annual Report on Form 10-K for the year ended December 31, 2022, and on Form 10-Q for the quarter ended September 30, 2023. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. All forward-looking statements are qualified in their entirety by this cautionary statement, and we undertake no obligation to revise or update this news release to reflect events or circumstances after the date hereof. CONTACT: Investors: Amicus Therapeutics Andrew FaughnanVice President, Investor Relationsafaughnan@amicusrx.com(609) 662-3809 Media: Amicus Therapeutics Diana Moore Head of Global Corporate Communicationsdmoore@amicusrx.com(609) 662-5079 FOLD-G