Ultragenyx Pharmaceutical Inc
For the period ended Mar 31, 2025. Filed May 7, 2025.
View on SEC.govAbout this filing
A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.
Mar 31, 2025 · Filed May 7, 2025
What changed in Management’s Discussion and Analysis?
Read the current filingPrevious report: 10-Q
Period ended 2024-09-30; filed 2024-11-06.
0000950170-24-121679
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of OperationsCurrent report: 10-Q
Period ended 2025-03-31; filed 2025-05-07.
0000950170-25-064726
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of OperationsThe baseline is this issuer’s latest earlier reporting period of the same form that was filed before the current report. A previous 10-Q is a different quarter, not a year-over-year comparison. Amendments are excluded.
Compared 130 previous paragraphs and 120 current paragraphs.
67 unchanged; 36 reworded; 16 added; 26 removed; 1 previous and 1 current paragraphs rearranged.
Tables are not compared: 19 previous and 10 current tables excluded. Dates, whitespace, punctuation and numbering changes are ignored; changes to financial figures remain significant.
A changed paragraph is not evidence that risk increased or decreased. An unchanged paragraph does not establish that risk stayed the same.
Added paragraphs (16)
Current report
In January 2025, we announced that the Phase 3 Orbit study is progressing to the second interim analysis expected in mid-2025. Patients in the Cosmic study also continue to be treated with either setrusumab or IV-BP therapy and will be evaluated in parallel with the second Orbit interim analysis in mid-2025. If Orbit progresses to full study completion in the fourth quarter of 2025, Cosmic will also continue to a data readout, to align with the Orbit readout without spending alpha at a mid-year interim assessment.
Current report
In February 2025, the FDA granted Priority Review to the previously submitted BLA for UX111 with a Prescription Drug User Fee Act, or PDUFA, action date of August 18, 2025.
Current report
These results will be included as part of a BLA submission expected in mid-2025.
Current report
In February 2025, we announced enrollment had been completed in the Phase 3 Enh3ance study of DTX301 for the treatment of OTC deficiency with a total of 37 patients randomized 1:1 to DTX301 or placebo. The co-primary endpoints are the percentage of patients who achieve a response as measured by the change in 24-hour plasma ammonia levels and discontinuation or reduction ammonia-scavenger medications and protein-restricted diet. Based on an amended protocol, the change in 24-hour ammonia levels will be measured through Week 36, after which the study would unblind and patients will be followed for a total of up to 64 weeks to determine the complete responders able to move safely to both ammonia-scavenger medications and protein-restricted diet control.
Current report
In May 2025, we announced enrollment had begun in Cohort 4 of the ongoing, dose-finding, stage of the pivotal Cyprus2+study of UX701 for the treatment of Wilson disease. During Stage 1, the safety and efficacy of UX701 is being evaluated across four, sequential dosing cohorts (Cohort 1: 5.0 x 10^12 GC/kg: Cohort 2: 1.0 x 10^13 GC/kg: Cohort 3: 2.0 x 10^13 GC/kg and Cohort 4: 4.0 x 10^13 GC/kg). We expect to enroll five patients in Cohort 4 who will receive immunomodulation therapy with rituximab and tacrolimus, in addition to the prophylactic oral corticosteroid regimen patients in Cohorts 1 through 3 received, prior to being dosed with UX701. Enrollment in Cohort 4 is expected to complete in the second half of 2025.
Current report
The pivotal, Stage 2 protocol was amended to a 52-week, randomized, open-label, active-controlled design, evaluating the safety and efficacy of UX701 following dose selection in Stage 1. The Stage 2 primary endpoints include comparisons between the UX701 and active control groups of change in 24-hour urinary copper from Baseline at Week 52 and percent reduction in standard of care medication by Week 52.
Current report
Our Crysvita royalty revenue increased by $1.4 million for the three months ended March 31, 2025 as compared to the same period in 2024.
Current report
for gene therapy programs, a decrease of $10.3 million, primarily due to the timing of the UX701 manufacturing runs and the recognition of contract manufacturing costs for DTX301 for the three months ended March 31, 2024 which did not recur for the three months ended March 31, 2025, partially offset by an increase in UX111 manufacturing costs in preparation for commercial launch;
Current report
for translational research, a decrease of $5.5 million, primarily related to a decrease in manufacturing expense for IND-stage projects;
Current report
for approved products, a decrease of $1.5 million for the three months ended March 31, 2025, primarily due to reduced compassionate use costs for Dojolvi;
Current report
for infrastructure, an increase of $2.1 million, primarily related to the allocation of certain staffing costs; and
Current report
Selling, general and administrative expenses increased by $9.6 million for the three months ended March 31, 2025 compared to the same period in 2024. The increase was primarily due to higher employee compensation costs as well as the recognition of reimbursement for a cost share arrangement that impacted selling, general and administrative expenses for the three months ended March 31, 2024, which did not recur during the three months ended March 31, 2025.
Current report
Cash Provided by Investing Activities
Current report
Cash Provided by (Used in) Financing Activities
Current report
Cash provided by financing activities for the three months ended March 31, 2025 was $0.2 million.
Current report
Cash used in financing activities for the three months ended March 31, 2024 was $0.1 million.
Removed paragraphs (26)
Previous report
Dojolvi (triheptanoin) for the treatment of LC-FAOD
Previous report
In November 2024, we announced that we had received a positive finalized assessment report with agreement to file for Conditional Early Approval, or CEA, from Japan’s Pharmaceuticals and Medical Devices Agency, or PMDA, based on the currently available global clinical data for the product. With this feedback, we expect to file a J-NDA in mid-2025.
Previous report
In October 2024, we announced that UX143 had received Breakthrough Therapy Designation from the FDA. This designation is based on preliminary clinical evidence including the positive 14-month results from the Phase 2 portion of the Orbit study, which demonstrated a rapid and clinically meaningful decrease in fracture rate in patients. It is also based on data from the completed Phase 2b Asteroid study. Breakthrough Therapy Designation aims to expedite the development and review of drugs that are intended to treat serious or life-threatening diseases and whose preliminary clinical evidence indicates that the drug may demonstrate substantial improvement on one or more clinically significant endpoints over existing therapies.
Previous report
We expect the pivotal Phase 3 Aspire study to start by the end of 2024 and the Aurora study to start in 2025.
Previous report
In November 2024, we announced the successful completion of a pre-BLA meeting with the FDA. In this meeting we aligned with the FDA on the details of a biologics license application, or BLA, that we expect to file around the end of 2024.
Previous report
After the 48-week primary efficacy analysis period crossover patients (previously treated with placebo) were eligible to receive DTX401. As of the data cut-off, 12 crossover patients have reached Week 30 post-treatment and have had a substantial 61.6% mean reduction of daily cornstarch at this early timepoint, double the rate of decrease when compared to patients in the original DTX401 treatment arm (n=20) that showed a mean 41.3% reduction at the end of the 48-weeks. Patients from the original DTX401 treatment arm who had reached 78 weeks are continuing to reduce their daily cornstarch intake, while maintaining glycemic control. DTX401 has demonstrated a consistent and acceptable safety profile with no new safety concerns identified as of the data cut-off.
Previous report
These results will be discussed with regulatory authorities to support submitting a marketing application in mid-2025.
Previous report
We are currently randomizing and dosing patients in our 64-week Phase 3 study of DTX301. The patients in the study will be randomized 1:1 to DTX301 (1.7 x 10^13 GC/kg dose) or placebo. We plan to enroll up to 50 patients 12 years of age and older. The co-primary endpoints are the percentage of patients who achieve a response, as measured by discontinuation or reduction in baseline disease management, and the 24-hour plasma ammonia levels. We expect to complete enrollment for the Phase 3 study around the end of 2024.
Previous report
In October 2024, we shared that the Phase 1/2/3 Cyprus2+study had demonstrated clinical activity as well as improvements in copper metabolism for patients treated in Stage 1. Multiple responders completely tapered off standard-of-care treatment with responses seen in all three dose cohorts. We expect to enroll an additional cohort in Stage 1 at a moderately increased dose and with an optimized immunomodulation regimen to enhance the efficiency and efficacy of the gene therapy, with the objective of having the majority of patients come off of standard-of-care treatment before selecting a dose for the randomized placebo-controlled stage of the study.
Previous report
In Stage 1, 15 patients were enrolled into three sequential dosing cohorts and followed for at least 24 weeks. Six of the patients completely tapered off of standard-of-care treatment with chelators and/or zinc therapy, and a seventh patient had begun tapering as of the data cut-off date in August 2024. In patients who have tapered off standard-of-care, non-ceruloplasmin bound copper (NCC) has stabilized to normal, healthy levels. In some patients, there were increases in ceruloplasmin-copper activity consistent with improved ATP7b function. UX701 has been well tolerated, with no unexpected related treatment-emergent adverse events and no significant immunologic safety events as of the data cut-off.
Previous report
We plan to submit a protocol amendment for the additional cohort at a moderately increased dose and with an optimized immunomodulation regimen to optimize delivery efficiency and efficacy for the AAV vector.
Previous report
Our Crysvita royalty revenue and Crysvita collaboration revenue in the Profit-Share Territory increased by a net $6.5 million and $5.2 million for the three and nine months ended September 30, 2024, respectively, as compared to the same periods in 2023. The increases primarily reflect the continuing increase in demand for Crysvita due to an increase in the number of patients on therapy. We transitioned commercial responsibilities to KKC in the Profit-Share Territory in April 2023. Post-transition, we recognize our revenue share for Crysvita sales in the Profit-Share Territory as royalty revenue, which was recorded as collaboration revenue prior to the transition. The royalty is calculated using annual revenue tiers ranging from the mid 20% up to 30%. We expect for the year ended December 31, 2024, our Crysvita annual tiered royalty revenue for North America will average at the upper end of the range.
Previous report
Our revenue from the Daiichi Sankyo arrangement decreased by $1.5 million for the nine months ended September 30, 2024, compared to the same periods in 2023. The decrease was due to the completion of the technology transfer and the technology transfer period as of March 31, 2023.
Previous report
for gene therapy programs, increases of $9.0 million and $29.6 million for the three and nine months ended September 30, 2024, respectively, primarily related to continued clinical progress of the programs and associated internal and external manufacturing costs related to the transition of certain programs to in-house manufacturing;
Previous report
for translational research, decreases of $4.8 million and $15.3 million for the three and nine months ended September 30, 2024, respectively, primarily related to decreases in manufacturing and headcount expense for IND-stage projects;
Previous report
for upfront license, acquisition, and milestone fees, a decrease of $9.0 million for the nine months ended September 30, 2024, related to the fee for achievement of a clinical enrollment milestone for the UX143 program, which was achieved during the nine months ended September 30, 2023;
Previous report
for approved products, decreases of $2.8 million and $17.3 million for the three and nine months ended September 30, 2024, respectively, primarily due to transition of Crysvita commercialization responsibilities in North America to KKC as post-marketing studies and other related research activities ramp down, and reduced reimbursement of Regeneron collaboration expenses associated with pediatric and open label extension trials for Evkeeza;
Previous report
for infrastructure, a decrease of $0.5 million and an increase of $3.8 million for the three and nine months ended September 30, 2024, respectively, primarily related to depreciation of the gene therapy manufacturing facility, depreciation of laboratory-related leasehold improvements and equipment, and IT-related expenses;
Previous report
for stock-based compensation, increases of $3.5 million and $8.4 million for the three and nine months ended September 30, 2024, respectively, primarily related to higher valuation of stock-based awards granted to employees; and
Previous report
Selling, general and administrative expenses increased by $5.4 million and $6.1 million for the three and nine months ended September 30, 2024, respectively, compared to the same periods in 2023.
Previous report
In October 2023, we completed an underwritten public offering in which 9,833,334 shares of common stock were sold, including the exercise in full by the underwriters of their option to purchase an additional 1,500,000 shares, at a public offering price of $30.00 per share. In connection with the offering, we sold to certain investors pre-funded warrants, in lieu of common stock, to purchase 1,666,722 shares of common stock at a purchase price of $29.999 per pre-funded warrant, which equals the public offering price per share of common stock less the $0.001 exercise price per share of each pre-funded warrant. The total proceeds that we received from the offering were $326.5 million, net of underwriting discounts and commissions.
Previous report
As of September 30, 2024, none of the pre-funded warrants had been exercised.
Previous report
Cash (Used in) Provided by Investing Activities
Previous report
Cash Provided by Financing Activities
Previous report
Cash provided by financing activities for the nine months ended September 30, 2024 was $396.1 million and was primarily related to proceeds from issuance of common stock and pre-funded warrants in connection with the underwritten public offering, net.
Previous report
Cash provided by financing activities for the nine months ended September 30, 2023 was $57.5 million, primarily related to proceeds from our ATM offering, net.
Reworded paragraphs (36)
Previous wording
Ultragenyx Pharmaceutical Inc., we or the Company, is a biopharmaceutical company committed to bringing novel products to patients for the treatment of serious rare and ultrarare genetic diseases. We have built a diverse portfolio of approved therapies and product candidates aimed at addressing diseases with high unmet medical need and clear biology for treatment, for which there are typically no approved therapies treating the underlying disease.
Current wording
Ultragenyx Pharmaceutical Inc., we or the Company, is a biopharmaceutical company committed to bringing novel products to patients for the treatment of serious rare and ultra-rare genetic diseases. We have built a diverse portfolio of approved therapies and product candidates aimed at addressing diseases with high unmet medical need and clear biology for treatment, for which there are typically no approved therapies treating the underlying disease.
Previous wording
Approved Products and Clinical Product Candidates
Current wording
Approved Therapies and Clinical Product Candidates
Previous wording
Evkeeza is a fully human monoclonal antibody administered by IV, that binds to and blocks the function of angiopoietin-like 3, or ANGPTL3, a protein that plays a key role in lipid metabolism, developed for the treatment of HoFH, a rare inherited condition. HoFH occurs when two copies of the genes causing familial hypercholesterolemia are inherited, one from each parent, resulting in dangerously high levels (>400 mg/dL) of low-density lipoprotein-cholesterol, or LDL-C, which is bad cholesterol. Patients with HoFH are at risk for premature atherosclerotic disease and cardiac events as early as their teenage years. Evkeeza is approved in the U.S., where it is marketed by our partner Regeneron Pharmaceuticals, or Regeneron. It is also approved in the European Economic Area, or EEA, Brazil and Japan as a first-in-class therapy for use together with diet and other LDL-C lowering therapies. In these regions, it is generally approved to treat adults and adolescents aged five years and older with clinical HoFH. There are approximately 3,000 to 5,000 patients with HoFH in the developed world outside of the U.S.
Current wording
Evkeeza is a fully human monoclonal antibody administered by IV, that binds to and blocks the function of angiopoietin-like 3, or ANGPTL3, a protein that plays a key role in lipid metabolism, developed for the treatment of HoFH, a rare inherited condition. HoFH occurs when two copies of the genes causing familial hypercholesterolemia are inherited, one from each parent, resulting in dangerously high levels (>400 mg/dL) of low-density lipoprotein-cholesterol, or LDL-C, which is bad cholesterol. Patients with HoFH are at risk for premature atherosclerotic disease and cardiac events as early as their teenage years. Evkeeza is approved in the U.S., where it is marketed by our partner Regeneron Pharmaceuticals, or Regeneron. It is also approved in the European Economic Area, or EEA, Brazil, Mexico, and Japan as a first-in-class therapy for use together with diet and other LDL-C lowering therapies. In these regions, Evkeeza is generally approved to treat adults and adolescents aged five years and older with clinical HoFH. There are approximately 3,000 to 5,000 patients with HoFH in the developed world outside of the U.S.
Previous wording
UX143 (setrusumab) is a fully human monoclonal antibody administered by IV that inhibits sclerostin, a protein that acts on a key bone-signaling pathway by inhibiting the activity of bone-forming cells and promoting bone resorption. Setrusumab is being developed for the treatment of OI, or brittle bone disease, which is caused by variants in the COL1A1 or COL1A2 genes, leading to either reduced or abnormal collagen and changes in bone metabolism. There are an estimated 60,000 patients in the developed world affected by OI. UX143 has received orphan drug designation from the U.S. Food and Drug Administration, or FDA, and European Medicines Agency, or EMA, Rare Pediatric Disease designation and Breakthrough Designation from the FDA, and was accepted into the EMA’s Priority Medicines program, or PRIME, program. Setrusumab is subject to our collaboration agreement with Mereo and is the lead clinical asset in our bone endocrinology franchise.
Current wording
UX143 (setrusumab) is a fully human monoclonal antibody administered by IV that inhibits sclerostin, a protein that acts on a key bone-signaling pathway by inhibiting the activity of bone-forming cells and promoting bone resorption. Setrusumab is being developed for the treatment of OI, or brittle bone disease, which is caused by variants in the COL1A1 or COL1A2 genes, leading to either reduced or abnormal collagen and changes in bone metabolism. There are an estimated 60,000 patients in the developed world affected by OI. UX143 has received orphan drug designation from the U.S. Food and Drug Administration, or FDA, and European Medicines Agency, or EMA, Rare Pediatric Disease designation and Breakthrough Designation from the FDA, and was accepted into the EMA’s Priority Medicines, or PRIME, program. Setrusumab is subject to our collaboration agreement with Mereo and is the lead clinical asset in our bone endocrinology franchise.
Previous wording
GTX-102 is an antisense oligonucleotide, or ASO, administered by intrathecal injection (IT) that inhibits expression of the paternal UBE3A antisense. GTX-102 is being developed for the treatment of Angelman syndrome, a debilitating and rare neurogenetic disorder caused by loss-of-function of the maternally inherited allele of the UBE3A gene. There are an estimated 60,000 patients in the developed world affected by Angelman syndrome. GTX-102 has received Fast Track Designation, Orphan Drug Designation and Rare Pediatric Disease Designation from the FDA and has been accepted into the EMA’s PRIME program.
Current wording
GTX-102 is an antisense oligonucleotide, or ASO, administered by intrathecal injection that inhibits expression of the paternal UBE3A antisense. GTX-102 is being developed for the treatment of Angelman syndrome, a debilitating and rare neurogenetic disorder caused by loss-of-function of the maternally inherited allele of the UBE3A gene. There are an estimated 60,000 patients in the developed world affected by Angelman syndrome. GTX-102 has received Fast Track Designation, Orphan Drug Designation and Rare Pediatric Disease Designation from the FDA and has been accepted into the EMA’s PRIME program.
Previous wording
UX701 is an AAV type 9 gene therapy, administered by a one-time IV infusion that is designed to deliver a truncated form of the ATP7B gene. UX701 is being developed for the treatment of patients with Wilson disease, which affects more than 50,000 patients in the developed world. UX701 has received Orphan Drug Designation in the U.S. and in the EU. UX701 has received a Fast Track Designation from the FDA.
Current wording
UX701 is an AAV type 9 gene therapy, administered by a one-time IV infusion that is designed to deliver a truncated form of the ATP7B gene. UX701 is being developed for the treatment of patients with Wilson disease, which affects approximately 50,000 patients in the developed world. UX701 has received Orphan Drug Designation in the U.S. and in the EU. UX701 has received a Fast Track Designation from the FDA.
Previous wording
As previously announced, in July 2024, we successfully completed an End of Phase 2 meeting with the FDA supporting our Phase 3 study plans for GTX-102. The pivotal Aspire Phase 3 study will be a global, randomized, double-blind, sham-controlled trial and will include a 48-week primary efficacy analysis period enrolling approximately 120 patients with Angelman syndrome with a genetically confirmed diagnosis of full maternal UBE3A gene deletion. The primary endpoint will be improvement in cognition assessed by Bayley-4 cognitive raw score. It will also include the key secondary endpoint of the Multi-domain Responder Index, or MDRI, across all five domains of cognition, receptive communication, behavior, gross motor function, and sleep. Individual secondary endpoints were also discussed and aligned on with the FDA for the domains of communication, behavior, motor function and sleep. We also discussed with the FDA plans to initiate the Aurora study, an additional, open-label clinical study to evaluate the safety and efficacy of GTX-102 for the treatment of patients with other Angelman syndrome genotypes and in other age groups.
Current wording
We are currently randomizing and dosing patients in Aspire, the 48-week Phase 3 study of GTX-102. Approximately 120 patients, between four and 17 years of age, with a genetically confirmed diagnosis of full maternal UBE3A gene deletion will be enrolled and randomized 1:1 to the GTX-102 or sham comparator group. The primary endpoint will be improvement in cognition assessed by Bayley-4 cognitive raw score, and the key secondary endpoint will be the Multi-domain Responder Index (MDRI) across the five domains of cognition, receptive communication, behavior, gross motor function, and sleep. We expect to complete enrollment for the Phase 3 study in the second half of 2025.
Previous wording
In May 2024, we announced positive topline results from our Phase 3 GlucoGene study for the treatment of patients aged eight years and older. The study achieved its primary endpoint, demonstrating that treatment with DTX401 resulted in a statistically significant and clinically meaningful reduction in daily cornstarch intake compared with placebo at Week 48.
Current wording
In May 2024, we previously disclosed that the Phase 3 GlucoGene study for the treatment of patients aged eight years and older with GSDIa achieved its primary endpoint, demonstrating that treatment with DTX401 resulted in a statistically significant and clinically meaningful reduction in daily cornstarch intake compared with placebo at Week 48. At Week 48, patients entered a 48-week Crossover Period where patients previously treated with placebo were treated with DTX401. In May 2025 we announced data from this Crossover Period, that demonstrated greater reductions in total daily cornstarch were observed in both the ongoing DTX401 group (-60%) with a mean follow-up of 120 weeks and the Crossover Placebo to DTX401 group (-64%) with a mean duration on therapy with DTX401 of 69 weeks. As of the data cut-off, glycemic control was maintained in participants treated with DTX401 despite significant reductions in daily cornstarch intake. DTX401 has demonstrated a consistent and acceptable safety profile with no new safety signals identified as of the data cut-off.
Previous wording
We have incurred net losses in each year since inception. Our net loss was $133.5 million and $435.8 million for the three and nine months ended September 30, 2024, respectively, and $159.6 million and $483.4 million for the three and nine months ended September 30, 2023, respectively. Substantially all of our net losses have resulted from costs incurred in connection with our research and development programs and from selling, general and administrative costs associated with our operations.
Current wording
We have incurred net losses in each year since inception. Our net losses were $151.1 million and $170.7million for the three months ended March 31, 2025 and 2024, respectively. Substantially all of our net losses have resulted from costs incurred in connection with our research and development programs and from selling, general and administrative costs associated with our operations.
Previous wording
Our total revenues were $139.5 million and $395.4 million for the three and nine months ended September 30, 2024, respectively, and $98.1 million and $306.9 million for the three and nine months ended September 30, 2023, respectively. The increase in revenue was largely driven by increases in demand for our approved products.
Current wording
Our total revenues were $139.3 million and $108.8 million for the three months ended March 31, 2025 and 2024, respectively. The increase in revenue was largely driven by an increase in demand for our approved products.
Previous wording
As of September 30, 2024, we had $824.7 million in available cash, cash equivalents, and marketable debt securities.
Current wording
As of March 31, 2025, we had $563.0 million in available cash, cash equivalents, and marketable debt securities.
Previous wording
Our management’s discussion and analysis of our financial condition and results of operations is based on our Condensed Consolidated Financial Statements, which have been prepared in accordance with U.S. generally accepted accounting principles. The preparation of these Condensed Consolidated Financial Statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported expenses incurred during the reporting periods. Our estimates are based on our historical experience and on various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. There have been no material changes in our critical accounting policies during the three and nine months ended September 30, 2024, as compared to those disclosed in “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Critical Accounting Policies and Significant Judgments and Estimates” in our Annual Report.
Current wording
Our management’s discussion and analysis of our financial condition and results of operations is based on our Condensed Consolidated Financial Statements, which have been prepared in accordance with U.S. generally accepted accounting principles. The preparation of these Condensed Consolidated Financial Statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported expenses incurred during the reporting periods. Our estimates are based on our historical experience and on various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. There have been no material changes in our critical accounting policies during the three months ended March 31, 2025, as compared to those disclosed in “Management’s Discussion and Analysis of Financial Condition and Results of Operations — Critical Accounting Policies and Significant Judgments and Estimates” in our Annual Report.
Previous wording
Comparison of the three and nine months ended September 30, 2024 to the three and nine months ended September 30, 2023:
Current wording
Comparison of the three months ended March 31, 2025 to the three months ended March 31, 2024:
Previous wording
Our product sales increased by $34.9 million and $84.8 million for the three and nine months ended September 30, 2024, respectively, compared to the same periods in 2023. The increases are primarily due to an increase in demand for Crysvita in Latin America resulting from an increase in the number of patients on therapy, launch of Evkeeza in Japan and several markets in Europe, Middle East and Africa territories, or EMEA, and continued increase in demand for our other approved products.
Current wording
Our product sales increased by $29.0 million for the three months ended March 31, 2025 compared to the same period in 2024. The increase is primarily due to an increase in demand for Crysvita in Latin America resulting from an increase in the number of patients on therapy, the launch of Evkeeza in Japan and several markets in Europe, Middle East and Africa territories, or EMEA, and the continued increase in demand for our other approved products.
Previous wording
Cost of sales increased by $10.0 million and $26.7 million for the three and nine months ended September 30, 2024, respectively, compared to the same periods in 2023. The increases in cost of sales were due to an increase in demand for our approved products, primarily Crysvita in Latin America and Evkeeza in Japan and several markets in EMEA.
Current wording
Cost of sales increased by $11.1 million for the three months ended March 31, 2025, compared to the same period in 2024. The increase in cost of sales was due to an increase in demand for our approved products, primarily Crysvita in Latin America and Evkeeza in EMEA and Japan.
Previous wording
Total research and development expenses increased by $12.9 million and $22.2 million for the three and nine months ended September 30, 2024, respectively, compared to the same periods in 2023. The increase in research and development expenses was primarily due to:
Current wording
Total research and development expenses decreased by $12.7 million for the three months ended March 31, 2025 compared to the same period in 2024. The decrease in research and development expenses was primarily due to:
Previous wording
for biologic and nucleic acid programs, increases of $11.4 million and $26.6 million for the three and nine months ended September 30, 2024, respectively, primarily related to the continued clinical progress of the UX143 and GTX102 programs and associated clinical development and manufacturing expenses, partially offset by a reduction in development expense on UX053 for the treatment of Glycogen Storage Disease Type III due to a greater focus on our other late-stage and larger indication clinical programs;
Current wording
for biologic and nucleic acid programs, an increase of $0.4 million, primarily related to the continued clinical progress of the GTX102 program and associated clinical development and manufacturing expenses, partially offset by a reduction in development expense on UX143;
Previous wording
for other research and development expenses, decreases of $2.8 million and $4.6 million for the three and nine months ended September 30, 2024, respectively, primarily related to decreased staffing and cost efficiencies to support internal manufacturing, and administrative and general support.
Current wording
for other research and development expenses, an increase of $1.8 million, primarily related to increased staffing to support internal manufacturing, and administrative and general support.
Previous wording
We expect our annual research and development expenses to continue to moderate in the future as we advance our product candidates through clinical development. The timing and amount of expenses incurred will depend largely upon the outcomes of current or future clinical studies for our product candidates as well as the related regulatory requirements, manufacturing costs, and any costs associated with the advancement of our preclinical programs.
Current wording
We expect our annual research and development expenses to moderate in the future as we advance our product candidates through clinical development. The timing and amount of expenses incurred will depend largely upon the outcomes of current or future clinical studies for our product candidates as well as the related regulatory requirements, manufacturing costs, and any costs associated with the advancement of our preclinical programs.
Previous wording
We expect annual selling, general and administrative expenses to continue to moderate in the near-term as we continue to support our approved products and multiple clinical-stage product candidates, and thereafter we expect these expenses to increase as we plan to launch additional products.
Current wording
We expect annual selling, general and administrative expenses to increase in the future as we continue to support our existing approved products, multiple clinical-stage product candidates, and planned launches of additional products.
Previous wording
Interest income increased by $4.9 million and $8.8 million for the three and nine months ended September 30, 2024, respectively, compared to the same periods in 2023, primarily due to higher marketable debt securities balances.
Current wording
Interest income decreased by $2.0 million for the three months ended March 31, 2025 compared to the same period in 2024, primarily due to lower marketable debt securities balances.
Previous wording
For the three and nine months ended September 30, 2024, respectively, we recorded net increases in the fair value of our equity investments of $0.7 million and $0.4 million due to unrealized gains on our investment in Solid Biosciences Inc., or Solid, common stock.
Current wording
For the three months ended March 31, 2025 and 2024, we recorded a net decrease of $0.2 million and a net increase of $3.7 million, respectively, in the fair value of our equity investments due to unrealized loss and gain, respectively, on our investment in Solid Biosciences Inc., or Solid, common stock.
Previous wording
The non-cash interest expense on liabilities for sales of future royalties decreased by $2.0 million and $1.2 million for the three and nine months ended September 30, 2024, respectively, compared to the same periods in 2023. These decreases were primarily the result of a decrease in overall liability balances as payments have exceeded interest expense incurred. To the extent the royalty payments are greater or less than our initial estimates or the timing of such payments is materially different than our original estimates, we prospectively adjust the effective interest rate.
Current wording
The non-cash interest expense on liabilities for sales of future royalties decreased by $1.5 million for the three months ended March 31, 2025, compared to the same period in 2024, primarily due to a reduction in total royalty obligation balances as a result of increased royalties generated from our collaboration partner, KKC. To the extent the royalty payments are greater or less than our initial estimates or the timing of such payments is materially different than our original estimates, we prospectively adjust the effective interest rate.
Previous wording
Other income increased by $3.8 million and other expense decreased by $2.0 million for the three and nine months ended September 30, 2024, respectively, compared to the same periods in 2023. These changes were primarily due to fluctuations to our exposures in foreign exchange rates.
Current wording
Other income increased by $2.4 million for the three months ended March 31, 2025, compared to the same period in 2024. These changes were primarily due to fluctuations to our exposures in foreign exchange rates.
Previous wording
The provision for incomes taxes decreased by a nominal amount for the three and nine months ended September 30, 2024, respectively, compared to the same periods in 2023.
Current wording
The provision for incomes taxes increased by $0.9 million for the three months ended March 31, 2025, compared to the same period in 2024.
Previous wording
To date, we have funded our operations primarily from the sale of our equity securities, revenues from our commercial products, the sale of certain future royalties, and strategic collaboration arrangements.
Current wording
To date, we have funded our operations primarily from the sale of our equity securities, revenue from our commercial products, the sale of certain future royalties, and strategic collaboration arrangements.
Previous wording
As of September 30, 2024, we had $824.7 million in available cash, cash equivalents, and marketable debt securities. We believe that our existing capital resources will be sufficient to fund our projected operating requirements for at least the next twelve months. Our cash, cash equivalents, and marketable debt securities are held in a variety of deposit accounts, interest-bearing accounts, corporate bond securities, commercial paper, U.S. government securities, asset-backed securities, and money market funds. Cash in excess of immediate requirements is invested with a view toward liquidity and capital preservation, and we seek to minimize the potential effects of concentration and credit risk.
Current wording
As of March 31, 2025, we had $563.0 million in available cash, cash equivalents, and marketable debt securities. We believe that our existing capital resources will be sufficient to fund our projected operating requirements for at least the next 12 months. Our cash, cash equivalents, and marketable debt securities are held in a variety of deposit accounts, interest-bearing accounts, corporate bond securities, commercial paper, U.S. government securities, asset-backed securities, and money market funds. Cash in excess of immediate requirements is invested with a view toward liquidity and capital preservation, and we seek to minimize the potential effects of concentration and credit risk.
Previous wording
In June 2024, we completed an underwritten public offering in which 8,782,051 shares of common stock were sold, including the exercise in full by the underwriters of their option to purchase an additional 1,346,153 shares, at a public offering price of $39.00 per share. In connection with the offering, we sold to certain investors pre-funded warrants, in lieu of common stock, to purchase 1,538,501 shares of common stock at a purchase price of $38.999 per pre-funded warrant, which equals the public offering price per share of common stock less the $0.001 exercise price per share of each pre-funded warrant. The total proceeds that we received from the offering were $381.0 million, net of underwriting discounts and commissions.
Current wording
In June 2024, we completed an underwritten public offering for the sale of shares of common stock and pre-funded warrants. The total proceeds that we received from the offering were $381.0 million, net of underwriting discounts and commissions.
Previous wording
In February 2024, we entered into a Sales Agreement with Cowen and Company, LLC, or Cowen, pursuant to which the Company may offer and sell shares of the Company’s common stock having an aggregate offering proceeds up to $350.0 million, from time to time, in ATM offerings through Cowen. No shares were sold under this agreement during the nine months ended September 30, 2024.
Current wording
In February 2024, we entered into a Sales Agreement with Cowen and Company, LLC, or Cowen, pursuant to which the Company may offer and sell shares of the Company’s common stock having an aggregate offering proceeds up to $350.0 million, from time to time, in ATM offerings through Cowen. As of March 31, 2025 no shares have been sold under this agreement.
Previous wording
Cash used in operating activities for the nine months ended September 30, 2023 was $390.9 million and primarily reflected a net loss of $483.4 million, partially offset by non-cash items of $121.0 million, net, which consisted primarily of non-cash collaboration royalty revenues, interest expense related to the sale of future royalties, net of amounts capitalized, stock-based compensation, amortization of discounts on marketable debt securities, and depreciation and amortization. The change in operating assets and liabilities also reflected a net use of cash of $28.4 million, primarily due to an increase in accounts receivable primarily related to timing of invoices received, increased revenues, and order timing, a decrease in accounts payable, accrued liabilities, and other liabilities, primarily due to timing of payments and receipt of invoices, as well as a decrease in manufacturing accruals and the payout of the 2022 annual bonuses, partially offset by a net decrease in other assets primarily due to a decrease in prepaid manufacturing.
Current wording
Cash used in operating activities for the three months ended March 31, 2025 was $166.5 million and primarily reflected a net loss of $151.1 million, partially offset by non-cash items of $41.2 million, net, which consisted primarily of stock-based compensation, amortization of discounts on marketable debt securities, depreciation and amortization, non-cash royalty revenue, and non-cash interest expense related to the sale of future royalties. The change in operating assets and liabilities also reflected a net use of cash of $56.6 million, primarily due to a net decrease in accounts payable, accrued and other liabilities primarily due to the payout of the 2024 annual bonuses and decreases in accrued collaboration for payment of a milestone to a collaboration partner of $30.0 million as well as an increase in prepaid manufacturing expense, partially offset by a decrease in accounts receivable related to timing of orders and collections.
Previous wording
Cash used in operating activities for the nine months ended September 30, 2024 was $334.7 million and primarily reflected a net loss of $435.8 million, partially offset by non-cash items of $109.9 million, net, which consisted primarily of stock-based compensation, amortization of discounts on marketable debt securities, depreciation and amortization, non-cash royalty revenue, and non-cash interest expense related to the sale of future royalties. The change in operating assets and liabilities also reflected a net use of cash of $8.8 million, primarily due to an increase in accounts receivable primarily related to an increase in sales of our approved products and timing of when orders were received, partially offset by a net decrease in other assets primarily due to a decrease in prepaid manufacturing.
Current wording
Cash used in operating activities for the three months ended March 31, 2024 was $190.7 million and primarily reflected a net loss of $170.7 million, partially offset by non-cash items of $36.0 million, net, which consisted primarily of stock-based compensation, amortization of discounts on marketable debt securities, the change in fair value of equity investments, depreciation and amortization, non-cash royalty revenue, and non-cash interest expense related to the sale of future royalties. The change in operating assets and liabilities also reflected a net use of cash of $56.0 million, primarily due to an increase in accounts receivable primarily related to an increase in sales of our approved products and timing of when orders were received, partially offset by a net decrease in accounts payable, accrued and other liabilities primarily due to the payout of the 2023 annual bonuses and decreases in accrued collaboration for the payment of a regulatory milestone to a collaboration partner.
Previous wording
Cash used in investing activities for the nine months ended September 30, 2024 was $120.5 million and was primarily related to $98.9 million from net activities in marketable debt securities, combined with payments to Regeneron of $12.5 million for the achievement of milestones under the collaboration agreement recorded as an intangible asset.
Current wording
Cash provided by investing activities for the three months ended March 31, 2025 was $119.9 million and was primarily related to $137.0 million from net activities in marketable debt securities, partially offset by the payment to a collaboration partner of $15.0 million for the achievement of a milestone under the collaboration agreement recorded as an intangible asset.
Previous wording
Cash provided by investing activities for the nine months ended September 30, 2023 was $275.0 million and was primarily related to $325.0 million from net activities in marketable debt securities, offset by purchases of property, plant, and equipment of $42.7 million, primarily related to the fit-out of our gene therapy manufacturing facility.
Current wording
Cash provided by investing activities for the three months ended March 31, 2024 was $94.4 million and was primarily related to $109.7 million from net activities in marketable debt securities, partially offset by the payment to a collaboration partner of $10.0 million for the achievement of a milestone under the collaboration agreement recorded as an intangible asset.
Previous wording
We anticipate that, excluding non-recurring items, we will continue to generate annual losses for the next several years as we continue the development of, and seek regulatory approvals for, our product candidates, and continue with commercialization of approved products. We may require additional capital to fund our operations, to complete our ongoing and planned clinical studies, to commercialize our products, to continue investing in early-stage research capabilities to promote our pipeline growth, to continue to acquire or invest in businesses or products that complement or expand our business, including future milestone payments thereunder, and to further develop our general infrastructure and such funding may not be available to us on acceptable terms or at all.
Current wording
We anticipate that, excluding non-recurring items, we will continue to generate annual losses in the near term as we continue the development of, and seek regulatory approvals for, our product candidates, and continue with commercialization of approved products. We may require additional capital to fund our operations, to complete our ongoing and planned clinical studies, to commercialize our products, to continue investing in early-stage research capabilities to promote our pipeline growth, to continue to acquire or invest in businesses or products that complement or expand our business, including future milestone payments thereunder, and to further develop our general infrastructure and such funding may not be available to us on acceptable terms or at all.
Previous wording
Future minimum lease payments under non-cancellable leases as of September 30, 2024, were approximately $42.5 million, of which $13.4 million is due within one year.
Current wording
Future minimum lease payments under non-cancellable leases as of March 31, 2025, were approximately $46.6 million, of which $13.9 million is due within one year.
Previous wording
Manufacturing and service contract obligations primarily relate to manufacturing of inventory for our approved products. As of September 30, 2024, we had obligations of approximately $35.6 million, of which $23.2 million is due within one year.
Current wording
Manufacturing and service contract obligations primarily relate to manufacturing of inventory for our approved products. As of March 31, 2025, we had obligations of approximately $97.2 million, of which $84.9 million is due within one year.
Rearranged current paragraphs (1)
Current report — wording carried from elsewhere
UX143 for the treatment of OI
Rearranged previous paragraphs (1)
Previous report — wording carried elsewhere
UX143 (setrusumab) for the treatment of OI