PROTHENA CORP PUBLIC LTD CO
For the period ended Mar 31, 2025. Filed May 8, 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 8, 2025
What changed in Management’s Discussion and Analysis?
Read the current filingPrevious report: 10-Q
Period ended 2024-09-30; filed 2024-11-12.
0001559053-24-000032
Item 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONSCurrent report: 10-Q
Period ended 2025-03-31; filed 2025-05-08.
0001559053-25-000023
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 111 previous paragraphs and 119 current paragraphs.
68 unchanged; 33 reworded; 16 added; 10 removed; 0 previous and 2 current paragraphs rearranged.
Tables are not compared: 12 previous and 8 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
About Birtamimab and AL Amyloidosis
Current report
Clinical Development Program for Birtamimab
Current report
Birtamimab reacts with a “cryptic” epitope that is exposed on misfolded kappa and lambda light chains that misfold and form amyloid. The epitope is well defined and highly conserved in light chains and exposed from early stages of aggregation throughout amyloid. Preclinical research has demonstrated that birtamimab binds to both soluble and insoluble aggregated kappa and lambda immunoglobulin light chain by recognizing this epitope that is exposed at the earliest stages of abnormal light chain misfolding and through aggregation of deposited amyloid. Our extensive preclinical findings and publications describe two proposed mechanisms of action for birtamimab: binding and neutralization of soluble toxic light chain aggregates, and clearance of amyloid deposits by phagocytosis.
Current report
In multiple clinical trials, birtamimab has been shown to be generally safe and well tolerated and has been evaluated in 302 patients receiving monthly intravenous infusions (including 294 patients who received the recommended 24 mg/kg dose), for an average of approximately 15 months.
Current report
In December 2024, topline results were announced from the Phase 2b clinical trial (PADOVA) conducted by partner Roche investigating prasinezumab in 586 people with early-stage Parkinson’s disease, treated for a minimum of 18 months while on stable symptomatic treatment. In April 2025, results from the Phase 2b PADOVA trial were presented for the first time in an oral presentation by Roche at the International Conference on Alzheimer’s and Parkinson’s Diseases (“AD/PD 2025”). Prasinezumab showed potential clinical effect in the primary endpoint of time to confirmed motor progression, as assessed by ≥5 point increase in Movement Disorder Society – Unified Parkinson’s Disease Rating Scale (“MDS-UPDRS”) Part III score from baseline, with a HR=0.84 [0.69-1.01] and p=0.0657. The effect of prasinezumab was more pronounced in a pre-specified analysis in the population treated with levodopa (75% of participants), HR=0.79 [0.63-0.99] and nominal p=0.0431. Pre-specified supplementary covariate-adjusted analyses of these endpoints demonstrated nominally significant effects on the primary endpoint (HR=0.81 [0.67-0.98]; nominal p=0.0334) and in the levodopa subgroup (HR=0.76 [0.61-0.95]; nominal p=0.0175). Covariates used for adjustment: medication at baseline, H&Y stage, DaT-SPECT, age, sex, baseline dependent parameter. Consistent positive trends across multiple secondary and exploratory clinical endpoints were also observed, in addition to a potential biological effect of prasinezumab on MRI biomarkers. Prasinezumab continues to be well tolerated and no new safety signals were observed in the study.
Current report
Wild-type ATTR (wtATTR) occurs sporadically and primarily involves cardiomyopathy. It is estimated that between 400,000 to 1.4 million patients suffer from ATTR-cardiomyopathy (ATTR-CM). Within this population, between 130,000 to 490,000 patients are estimated to be moderate-to-advanced and categorized as New York Heart Association Class III and IV.
Current report
In hereditary ATTR amyloidosis, mutations in the TTR gene causes non-native TTR to accumulate and damage body organs and tissue, such as the peripheral nerves and heart. This results in predominant symptoms of neuropathy (hATTR-PN) and/or cardiomyopathy (hATTR-CM), as well as other disease manifestations. It is estimated that there are approximately 50,000 patients with hATTR worldwide, with approximately 10,000 characterized as hATTR-PN and 40,000 characterized as hATTR-CM.
Current report
It is generally accepted that, at the time of diagnosis, affected organs in ATTR amyloidosis patients (both hATTR and wtATTR amyloidosis) contain extracellular amyloid deposits. These deposits, together with prefibrillar species, are believed to cause organ dysfunction and failure.
Current report
Current therapeutic approaches for ATTR amyloidosis have demonstrated benefit to patients by impacting the biological pathway leading to the formation of amyloid deposits. These approaches are designed to either reduce production of native forms of the TTR protein or bind to TTR and prevent tetramer dissociation but do not target the non-native, pathogenic form of TTR directly.
Current report
n/m = not meaningful
Current report
Total revenue was $2.8 million and $0.1 million for the three months ended March 31, 2025, and 2024, respectively.
Current report
Collaboration revenue was $2.8 million for the three months ended March 31, 2025, compared to nil for the three months ended March 31, 2024. Collaboration revenue for three months ended March 31, 2025 was related to the partial performance of our PRX019 Phase 1 Clinical Trial Obligation.
Current report
Cash Provided by (Used in) Financing Activities
Current report
Net cash used in financing activities was$48 thousand for thethree months ended March 31, 2025, which primarily consisted of expenditures related to our at-the-market offering.
Current report
Three Months Ended March 31, 2024
Current report
(2) As of the filing date, there were no material changes to our Purchase obligations subsequent to March 31, 2025.
Removed paragraphs (10)
Previous report
An interim analysis is conducted when approximately 50% of the events have occurred, allowing the independent data monitoring committee to recommend either continuing the trial or stopping early for overwhelming efficacy. Patients will receive 24 mg/kg of birtamimab or placebo by intravenous infusion every 28 days, with all patients receiving concurrent standard of care therapy consisting of a first line bortezomib-containing regimen.
Previous report
A Phase 2b clinical trial (PADOVA) to further assess the efficacy of prasinezumab in an expanded patient population is being conducted by Roche. PADOVA is a Phase 2b, randomized, double-blind, placebo-controlled, multicenter clinical trial to evaluate the efficacy and safety of prasinezumab in patients with early Parkinson’s disease who are on stable symptomatic (levodopa) medication. The trial has enrolled 586 patients randomized to receive either prasinezumab or placebo via intravenous infusion every 4 weeks. The primary endpoint is time to meaningful progression on motor signs of the disease, as assessed by ≥5 point increase in Movement Disorder Society – Unified Parkinson’s Disease Rating Scale (“MDS-UPDRS”) Part III score from baseline. In the first quarter of 2023, Roche completed enrollment for the Phase 2b PADOVA trial.
Previous report
Total revenue was$1.0 million and $84.9 million for thethree months ended September 30, 2024, and 2023, respectively, and$133.0 million and$91.1 million for the nine months ended September 30, 2024, and 2023, respectively.
Previous report
Collaboration revenue was$1.0 million and $133.0 million for thethree and nine months ended September 30, 2024, compared to $84.9 million and$91.0 million for thethree and nine months ended September 30, 2023, respectively. Collaboration revenue for the three and nine months ended September 30, 2024, was related to revenue recognized under our Collaboration Agreement with BMS. Collaboration revenue for thethree months ended September 30, 2024 related to PRX019 Phase 1 Clinical Trial Obligation. Collaboration revenue for thenine months ended September 30, 2024 included $107.9 million from the PRX019 Global License Agreement and PRX019 Phase 1 Clinical Trial Obligation and $25.0 million was related to BMS’s material rights for the US Rights and Global Rights for the TDP-43 Collaboration Target that expired unexercised on May 24, 2024 as a result of the expiration of the research term of the Collaboration Agreement.
Previous report
Collaboration revenue for the three and nine months ended September 30, 2023, included revenue from BMS for US Development Services related to the Tau/PRX005 program. As of September 30, 2024, the Company does not have any remaining Tau US Development Services Obligations and has recognized all revenue from this performance obligation as of December 31, 2023.
Previous report
(2)Through May 28, 2021, Prasinezumab costs include payments to Roche for our share of the development expenses incurred by Roche related to prasinezumab programs.
Previous report
(3) On July 8, 2021, we sold shares of one of our wholly-owned subsidiaries to Novo Nordisk. In connection with the transaction, Novo Nordisk acquired our ATTR amyloidosis business, including the clinical stage antibody coramitug (PRX004). Expenses incurred in 2024 and 2023 relate to certain close out activities and transition services provided to Novo Nordisk.
Previous report
Cash Provided by Financing Activities
Previous report
Net cash provided by financing activities was$1.6 million for thenine months ended September 30, 2024, primarily from proceeds from issuances of ordinary shares upon exercises of stock options of $1.9 million.
Previous report
Nine Months Ended September 30, 2023
Reworded paragraphs (33)
Previous wording
Fueled by our deep scientific expertise built over decades of research, we are advancing a pipeline of therapeutic candidates for a number of indications and novel targets for which our ability to integrate scientific insights around neurological dysfunction and the biology of misfolded proteins can be leveraged. Our wholly-owned programs include birtamimab for the potential treatment of AL amyloidosis, and a portfolio of programs for the potential treatment of Alzheimer’s disease including PRX012, which targets amyloid beta (“Aβ”), and PRX123, a novel dual Aβ-tau vaccine. Our partnered programs include prasinezumab for the potential treatment of Parkinson’s disease and other related synucleinopathies that targets alpha-synuclein in collaboration with Roche. In addition, we have partnered BMS-986446 (formerly PRX005) for the potential treatment for Alzheimer’s disease that targets tau and PRX019 for the potential treatment of neurodegenerative diseases with an undisclosed target in two separate license agreements with Bristol Myers Squibb (“BMS”). We are also entitled to certain potential milestone payments pursuant to our share purchase agreement with Novo Nordisk pertaining to our ATTR amyloidosis business (inclusive of coramitug, formerly PRX004).
Current wording
PRX012, which targets amyloid beta (Aβ), and PRX123, a novel dual Aβ-tau vaccine. Our partnered programs include prasinezumab for the potential treatment of Parkinson’s disease and other related synucleinopathies that targets alpha-synuclein in collaboration with Roche. In addition, we have partnered BMS-986446 (formerly PRX005) for the potential treatment for Alzheimer’s disease that targets tau and PRX019 for the potential treatment of neurodegenerative diseases with an undisclosed target in two separate license agreements with Bristol Myers Squibb (BMS). We are also entitled to certain potential milestone payments pursuant to our share purchase agreement with Novo Nordisk pertaining to our ATTR amyloidosis business (inclusive of coramitug, formerly PRX004).
Previous wording
Based on further analyses of data from the VITAL clinical trial and multiple in-depth discussions with the FDA, Prothena announced plans in February 2021, to advance birtamimab into the confirmatory Phase 3 AFFIRM-AL clinical trial in patients with Mayo Stage IV AL amyloidosis. AFFIRM-AL is a registration-enabling Phase 3 clinical trial that is being conducted with a primary endpoint of all-cause mortality at p<0.10 under a Special Protocol Assessment (“SPA”) agreement with the FDA. Patient enrollment is on track in the AFFIRM-AL trial and full topline trial results are expected in the first half of 2025.
Current wording
Based on further analyses of data from the VITAL clinical trial and multiple in-depth discussions with the FDA, Prothena announced plans in February 2021, to advance birtamimab into the confirmatory Phase 3 AFFIRM-AL clinical trial in patients with Mayo Stage IV AL amyloidosis. AFFIRM-AL is a registration-enabling Phase 3 clinical trial that is being conducted with a primary endpoint of time to all-cause mortality at p<0.10 under a Special Protocol Assessment (SPA) agreement with the FDA. AFFIRM-AL topline trial results are expected in the second quarter of 2025.
Previous wording
AFFIRM-AL is an ongoing global, multi-center, double-blind, placebo-controlled, 2:1 randomized, time-to-event trial expected to enroll up to approximately 220 newly diagnosed, treatment naïve patients with AL amyloidosis categorized as Mayo Stage IV. It has been designed to evaluate the primary endpoint of time to all-cause mortality with a significance level of p<0.10. Secondary endpoints will assess change from baseline to month 9 in functional capacity as measured by 6MWT distance and quality of life as measured by SF-36v2 PCS.
Current wording
AFFIRM-AL is an ongoing global, multi-center, double-blind, placebo-controlled, 2:1 randomized, time-to-event trial expected to enroll up to 220 newly diagnosed, treatment naïve patients with AL amyloidosis categorized as Mayo Stage IV. Patients receive 24 mg/kg of birtamimab or placebo by intravenous infusion every 28 days, with all patients receiving concurrent standard of care chemotherapy in accordance with the institutional standard of care which includes a bortezomib-containing chemotherapy regimen such as cyclophosphamide, bortezomib, and dexamethasone (CyBorD). The initiation of daratumumab treatment at randomization is allowed at the discretion of the investigator. The trial has been designed to evaluate the primary endpoint of time to all-cause mortality with a significance level of p<0.10. Secondary endpoints will assess change from baseline to month 9 in functional capacity as measured by 6MWT distance and quality of life as measured by SF-36v2 PCS.
Previous wording
Prasinezumab is the first anti-alpha synuclein antibody to advance into late-stage development. In March 2022, results from the analysis of part 2 of the Phase 2 PASADENA trial of prasinezumab were presented in an oral presentation by Roche at the International Conference on Alzheimer’s and Parkinson’s Diseases (“AD/PD 2022”). Results showed that participants with Parkinson’s disease who were treated with prasinezumab for two years (early-start group) showed slower decline of MDS-UPDRS Part III scores relative to participants treated with placebo in the first year and prasinezumab in the second year (delayed-start group), further supporting a potential effect on delaying motor progression in patients. In October 2024, Roche published results in Nature Medicine from the long-term open-label extension of the PASADENA trial, which compared the prasinezumab population with a propensity score-balanced cohort of real-world data (“RWD”) Parkinson’s Progression Markers Initiative (“PPMI”). The data suggests that prasinezumab continued to show reduced motor and functional progression in prazinezumab-treated individuals with early-stage Parkinson’s disease compared to a real-world data arm on MDS-UPDRS Part III score (clinician-rated motor examination) OFF and ON symptomatic medication state and MDS-UPDRS Part II score (patient-reported motor experiences of daily living).
Current wording
Prasinezumab is the first anti-alpha synuclein antibody to advance into late-stage development. In March 2022, results from the analysis of part 2 of the Phase 2 PASADENA trial of prasinezumab were presented in an oral presentation by Roche at the International Conference on Alzheimer’s and Parkinson’s Diseases (“AD/PD 2022”). Results showed that participants with Parkinson’s disease who were treated with prasinezumab for two years (early-start group) showed slower decline of MDS-UPDRS Part III scores relative to participants treated with placebo in the first year and prasinezumab in the second year (delayed-start group), further supporting a potential effect on delaying motor progression in patients. In October 2024, Roche published results in Nature Medicine from the long term open-label extension of the PASADENA trial, which compared the prasinezumab population with a propensity score-balanced cohort of real-world data (“RWD”) Parkinson’s Progression Markers Initiative (“PPMI”). The data suggests that prasinezumab continued to show reduced motor and functional progression in prazinezumab-treated individuals with early-stage Parkinson’s disease compared to a real-world data arm on MDS-UPDRS Part III score (clinician rated motor examination) OFF and ON symptomatic medication state and MDS-UPDRS Part II score (patient-reported motor experiences of daily living). The Phase 2 PASADENA and Phase 2b PADOVA open-label extension studies will continue in order to further explore the observed effects in both studies. Given the high level of unmet need for these patients, Roche is further evaluating study data and will work together with health authorities to determine next steps.
Previous wording
In July 2021, we entered into an exclusive US license agreement for BMS-986446 and we received an associated option exercise fee of $80 million. In July 2023, we entered into an exclusive global license agreement for BMS-986446, which as discussed above supersedes and replaces the US license agreement in its entirety and we received an associated option exercise fee of $55 million. We are eligible to receive regulatory and sales milestone payments of up to$563 million, as well as tiered royalties on annual, worldwide net sales.
Current wording
In July 2021, we entered into an exclusive US license agreement for BMS-986446 and we received an associated option exercise fee of $80 million. In July 2023, we entered into an exclusive global license agreement for BMS-986446, which as discussed above supersedes and replaces the US license agreement in its entirety and we received an associated option exercise fee of $55 million. We are eligible to receive regulatory and sales milestone payments of up to $563 million, as well as tiered royalties on annual, worldwide net sales.
Previous wording
We are advancing our lead candidate, PRX012, as a next-generation approach for subcutaneous administration to i address the unmet need of millions of patients with presymptomatic or early symptomatic Alzheimer's disease. In March 2022, we announced the FDA clearance of the IND for PRX012 and the initiation of a Phase 1 single ascending dose trial to investigate the safety, tolerability, immunogenicity, and pharmacokinetics of PRX012 in both healthy volunteers and patients with Alzheimer’s disease. In April 2022, we announced that the FDA granted Fast Track designation for PRX012 for the treatment of Alzheimer’s disease. The FDA’s Fast Track designation program is designed to expedite the development and review of drugs intended to treat a serious condition, such as Alzheimer’s disease, with evidence demonstrating the potential to address an unmet medical need. In January 2024, we announced that topline Phase 1 data from the single ascending dose trial and the initial multiple dose cohort (70 mg) supports once-monthly subcutaneous treatment and dose escalation. The ongoing Phase 1 trial continues as planned and we expect to report multiple clinical readouts starting in mid-2025 and continuing throughout the year.
Current wording
We are advancing our lead candidate, PRX012, as a next-generation approach for subcutaneous administration to address the unmet need of millions of patients with presymptomatic or early symptomatic Alzheimer's disease. In March 2022, we announced the FDA clearance of the IND for PRX012 and the initiation of a Phase 1 single ascending dose trial to investigate the safety, tolerability, immunogenicity, and pharmacokinetics of PRX012 in both healthy volunteers and patients with Alzheimer’s disease. In April 2022, we announced that the FDA granted Fast Track designation for PRX012 for the treatment of Alzheimer’s disease. The FDA’s Fast Track designation program is designed to expedite the development and review of drugs intended to treat a serious condition, such as Alzheimer’s disease, with evidence demonstrating the potential to address an unmet medical need. In January 2024, we announced that topline Phase 1 data from the single ascending dose trial and the initial multiple dose cohort (70 mg) supports single-injection once-monthly subcutaneous treatment and dose escalation. The ongoing Phase 1 trial continues as planned and we expect to report multiple clinical readouts starting in mid-2025 and continuing throughout the year.
Previous wording
There were no significant changes to our critical accounting policies and estimates during the nine months ended September 30, 2024, from the critical accounting policies and estimates disclosed in Management's Discussion and Analysis of Financial Condition and Results of Operations in our 2023 Form 10-K.
Current wording
There were no significant changes to our critical accounting policies and estimates during the three months ended March 31, 2025, from the critical accounting policies and estimates disclosed in Management's Discussion and Analysis of Financial Condition and Results of Operations in our 2024 Form 10-K.
Previous wording
Except as described in Note 2 to the Condensed Consolidated Financial Statements under the heading “Recent Accounting Pronouncements”, there have been no new accounting pronouncements or changes to accounting pronouncements during the nine months ended September 30, 2024, as compared to the recent accounting pronouncements described in our 2023 Form 10-K, that are of significance or potential significance to us.
Current wording
Except as described in Note 2 to the Condensed Consolidated Financial Statements under the heading “Recent Accounting Pronouncements”, there have been no new accounting pronouncements or changes to accounting pronouncements during the three months ended March 31, 2025, as compared to the recent accounting pronouncements described in our 2024 Form 10-K, that are of significance or potential significance to us.
Previous wording
Comparison of three and nine months ended September 30, 2024 and 2023
Current wording
Comparison of three months ended March 31, 2025 and 2024
Previous wording
As of September 30, 2024, the Company has $14.4 million of deferred revenue related to the remaining performance obligations under the PRX019 Global License Agreement related to PRX019 Phase 1 Clinical Trial Obligations. See Note 7, “Significant Agreements” to the Condensed Consolidated Financial Statements regarding the Collaboration Agreement with BMS for more information.
Current wording
As of March 31, 2025, the Company has $9.5 million of deferred revenue related to the remaining performance obligations under the PRX019 Global License Agreement relatedto PRX019 Phase 1 Clinical Trial Obligations. See Note 7, “Significant Agreements” to the Condensed Consolidated Financial Statements regarding the Collaboration Agreement with BMS for more information.
Previous wording
License and intellectual property revenue for the nine months ended September 30, 2024, and 2023 included $50,000 in each period, respectively, in license fees recognized under the License Agreement entered into on March 1, 2020, between the Company's wholly owned subsidiary, Prothena Biosciences Limited, and F. Hoffmann-La Roche Ltd.
Current wording
License and intellectual property revenue for the three months ended March 31, 2025, and 2024 included $50,000 in each period, respectively, in license fees recognized under the License Agreement entered into on March 1, 2020, between the Company's wholly owned subsidiary, Prothena Biosciences Limited, and F. Hoffmann-La Roche Ltd.
Previous wording
Total operating expenses consist of R&D expenses, general and administrative (“G&A”) expenses. Our operating expenses were$67.5 million and $74.6 million for the three months ended September 30, 2024, and 2023, respectively, and$222.7 million and$203.6 millionfor thenine months ended September 30, 2024, and 2023, respectively.
Current wording
Total operating expenses consist of R&D expenses, general and administrative (“G&A”) expenses. Our operating expenses were$68.4 million and $81.6 million for thethree months ended March 31, 2025, and 2024, respectively.
Previous wording
Our research activities are aimed at developing new drug products. Our development activities involve the translation of our research into potential new drugs. Our R&D expenses primarily consist of personnel costs and related expenses, including share-based compensation and external costs associated with clinical activities and drug development related to our drug programs, including birtamimab, BMS-986446 (PRX005), PRX012, PRX123 and preclinical activities related to our discovery programs.
Current wording
Our research activities are aimed at developing new drug products. Our development activities involve the translation of our research into potential new drugs. Our R&D expenses primarily consist of personnel costs and related expenses, including share-based compensation and external costs associated with clinical activities and drug development related to our drug programs, including birtamimab, PRX012, PRX019, and preclinical activities related to our discovery programs.
Previous wording
Our R&D expenses decreased by$7.2 million or (12)% for the three months ended September 30, 2024, and increased by $13.7 million or 9%, for the nine months ended September 30, 2024, compared to the same period in the prior year. The decrease for thethree months ended September 30, 2024, compared to the same period in the prior year, was due primarily to lower manufacturing expenses. Theincrease for the nine months ended September 30, 2024, compared to the same period in the prior year, was primarily due to higher clinical trial expenses primarily related to the PRX012 and birtamimab programs and higher personnel expenses.
Current wording
Our R&D expense decreased by $13.3 million for the three months ended March 31, 2025, compared to the same period in the prior year. The decrease for the three months ended March 31, 2025, compared to the same period in the prior year, was primarily due to lower clinical trial expenses primarily related to the PRX012, lower manufacturing expense and lower personnel expenses.
Previous wording
The following table sets forth the R&D expenses for our major programs (specifically, any active program with successful first dosing in a Phase 1 clinical trial), which were birtamimab, prasinezumab, NNC6019 (PRX004), BMS-986446 (PRX005), PRX012 and other R&D expenses for the three and nine months ended September 30, 2024, and 2023, and the cumulative amounts to date (in thousands):
Current wording
The following table sets forth the R&D expenses for our major programs (specifically, any active program with successful first dosing in a Phase 1 clinical trial and have material expenditures in the periods presented), which were birtamimab, PRX012, PRX019, and other R&D expenses for thethree months ended March 31, 2025, and 2024, (in thousands):
Previous wording
(1)Cumulative R&D costs to date include the costs incurred from the date when the applicable program was separately tracked in preclinical development. Expenditures in the early discovery stage are not tracked by program and accordingly have been excluded from the applicable cumulative amount.
Current wording
(1) R&D costs include the costs incurred from the date when PRX019 was separately tracked in preclinical development.
Previous wording
(4) Other R&D is comprised primarily of preclinical development and discovery programs that have not progressed to first patient dosing in a Phase 1 clinical trial and close out costs for programs that we are no longer advancing.
Current wording
(2) Other R&D is comprised primarily of preclinical development and discovery programs that have not progressed to first patient dosing in a Phase 1 clinical trial, close out costs for programs that we are no longer advancing, and immaterial costs incurred on ongoing partnered programs.
Previous wording
Our G&A expenses increased by $0.1 million or 1% for the three months ended September 30, 2024, and increased by $5.5 million, or 12%, for the nine months ended September 30, 2024, compared to the same period in the prior year. The increase for the nine months ended September 30, 2024, compared to the prior year, was primarily due to higher personnel expenses.
Current wording
Our G&A expenses increased by $0.1 million for the three months ended March 31, 2025, compared to the same period in the prior.
Previous wording
Interest income decreased by $1.8 million or 21% for the three months ended September 30, 2024, anddecreased by $2.5 million, or 11%, for the nine months ended September 30, 2024, compared to the same period in the prior year, primarily due to lower interest income from our cash and money market accounts resulting from lower cash balances.
Current wording
Interest income decreased by $2.8 million for the three months ended March 31, 2025, compared to the same period in the prior year primarily due to lower interest income from our cash and money market accounts resulting from lower yields and lower cash balances.
Previous wording
Other expense, net for thethree and nine months ended September 30, 2024, and 2023, was primarily foreign exchange losses from transactions with vendors denominated in Euros.
Current wording
Other expense, net for the three months ended March 31, 2025, was primarily foreign exchange losses from transactions with vendors denominated in euros.
Previous wording
The benefit from income taxes decreased by $2.3 million or 73% for thethree months ended September 30, 2024, and decreased by $5.2 million, or 51%, for the nine months ended September 30, 2024, compared to the same period in the prior year. The decrease inbenefit from income taxes for thethree and nine months ended September 30, 2024, compared to the same period in the prior year, was primarily due to a decrease in the net amount capitalized as deferred tax assets related to Section 174 R&D Capitalization.
Current wording
The benefit from income taxes decreased by $1.0 millionor 46% for the three months ended March 31, 2025, compared to the same period in the prior year. The decline in benefit from income taxes for the three months ended March 31, 2025, compared to the same period in the prior year, was primarily due to a decrease in the amount capitalized, net of amortization, as deferred tax assets related to Section 174 R&D Capitalization.
Previous wording
The tax provisions for all periods presented primarily reflect U.S. federal taxes associated with recurring profits attributable to intercompany services that our U.S. subsidiary performs for the Company. No tax benefit has been recorded related to tax losses recognized in Ireland and any deferred tax assets for those losses are offset by a valuation allowance.
Current wording
No tax benefit has been recorded related to tax losses recognized in Ireland and any deferred tax assets for those losses are offset by a valuation allowance.
Previous wording
Working capital was$488.6 million as of September 30, 2024, a decrease of $93.8 million from working capital of$582.4 million as of December 31, 2023. This decrease in working capital during the nine months ended September 30, 2024, was primarily attributable to cash use of$222.7 million for operating expenses (adjusted to exclude non-cash charges) offset in part by$80.0 million option exercise payment from BMS, net proceeds received from interest income on investments of$20.4 million and to a lesser extent, stock option exercises of approximately$1.9 million.
Current wording
Working capital was$387.7 million as of March 31, 2025, a decrease of $49.2 million from working capital of$436.9 million as of December 31, 2024. This decrease in working capital during the three months ended March 31, 2025, was primarily attributable to cash used in operating activities of $53.4 million.
Previous wording
As of September 30, 2024, we had$519.3 million in cash and cash equivalents. Although we believe, based on our current business plans, that our existing cash and cash equivalents will be sufficient to meet our obligations for at least the next twelve months, we anticipate that we will require additional capital in the future in order to continue the research and development of our drug candidates. Additionally, in order to develop and obtain regulatory approval for our potential products we will need to raise substantial additional funds. We expect to raise any such additional funds through public or private equity or debt financings, colla borative agreements with corporate partners, or other arrangements, including pursuant to the Amended Distribution Agreement (See Note 8, “Shareholders’ Equity” to the Condensed Consolidated Financial Statements for more information). We cannot assume that such additional financings will be available on acceptable terms, if at all, and such financings may only be available on terms dilutive to our shareholders.
Current wording
As of March 31, 2025, we had $417.9 million in cash and cash equivalents. Based on our current business plans, we believe that our existing cash and cash equivalents at March 31, 2025 are sufficient to meet our obligations for at least the next twelve months. To operate beyond such period, or if we elect to increase our spending on research and development programs significantly above current long-term plans or enter into potential licenses and/or other acquisitions of complementary technologies, products or companies, we may need additional capital. Additionally, in order to develop and obtain regulatory approval for our potential products we will need to raise substantial additional capital. We expect to continue to finance future capital needs that exceed our existing cash and cash equivalents, payments pursuant to our agreements with Roche, BMS, and Novo Nordisk, and, to the extent necessary, other collaboration agreements with corporate partners, or other arrangements, and through proceeds from public or private equity or debt financings, and loans, including pursuant to the Amended Distribution
Previous wording
In managing our liquidity needs in Ireland, we do not rely on unrepatriated earnings as a source of funds. As of September 30, 2024, $255.0 million of our outstanding cash and cash equivalents related to U.S. operations are considered permanently reinvested. We do not intend to repatriate these funds. However, if these funds were repatriated back to Ireland, we would incur a withholding tax from the dividend distribution.
Current wording
In managing our liquidity needs in Ireland, we do not rely on unrepatriated earnings as a source of funds. As of March 31, 2025, $264.9 million of our outstanding cash and cash equivalents related to U.S. operations are considered permanently reinvested. We do not intend to repatriate these funds. However, if these funds were repatriated back to Ireland, we would incur a withholding tax from the dividend distribution.
Previous wording
Our cash and cash equivalents may also be potentially supplemented in the future by proceeds from our collaboration partners and milestone payments from Novo Nordisk. Pursuant to the Collaboration Agreement with Roche, we are eligible to receive payments for commercial and regulatory milestones and royalties on net sales of Collaboration Products. See Note 7, “Significant Agreements” to our Condensed Consolidated Financial Statements regarding the Roche License Agreement for more information. Pursuant to the Collaboration Agreement with BMS (formerly Celgene), we are eligible to receive payments for commercial and regulatory milestones and royalties on net sales of Collaboration Products. See Note 7, “Significant Agreements” to our Condensed Consolidated Financial Statements regarding the Collaboration Agreement with BMS for more information. Pursuant to the share purchase agreement with Novo Nordisk, we are eligible to receive development and sales milestone payments. See Note 7, “Significant Agreements” to our Condensed Consolidated Financial Statements regarding the Novo Nordisk Share Purchase Agreement for more information.
Current wording
Our cash and cash equivalents may also be potentially supplemented in the future by proceeds from our collaboration partners BMS (formerly Celgene), Roche and milestone payments from Novo Nordisk. Pursuant to the Collaboration Agreement with Roche, we are eligible to receive payments for commercial and regulatory milestones and royalties on net sales of Collaboration Products. See Note 7, “Significant Agreements” to our Condensed Consolidated Financial Statements regarding the Roche License Agreement for more information. Pursuant to the Collaboration Agreement with BMS, we are eligible to receive payments for commercial and regulatory milestones and royalties on net sales of Collaboration Products. See Note 7, “Significant Agreements” to our Condensed Consolidated Financial Statements regarding the Collaboration Agreement with BMS for more information. Pursuant to the share purchase agreement with Novo Nordisk, we are eligible to receive development and sales milestone payments. See Note 7, “Significant Agreements” to our Condensed Consolidated Financial Statements regarding the Novo Nordisk Share Purchase Agreement for more information.
Previous wording
Net cash used in operating activities was $102.3 million for the nine months ended September 30, 2024, which was primarily due to ongoing research and development activities and general and administrative expenses to support those activities for a total of $222.7 million in operating expenses (adjusted to exclude non-cash charges of approximately $31.0 million), cash paid for accounts payable, accruals and other liabilities and prepaid expenses, partially offset by proceeds received from interest income on investments of $20.4 million, cash from collection of accounts receivable and proceeds from stock option exercises of approximately $1.9 million.
Current wording
Net cash used in operating activities was$53.4 million for the three months ended March 31, 2025, which was primarily due to ongoing research and development activities and general and administrative expenses to support those activities for a total of$68.4 million in operating expenses (adjusted to exclude non-cash charges of approximately$10.2 million) partially offset byinterest income on investments of$4.3 million.
Previous wording
Net cash used in investing activities was $255,000 for thenine months ended September 30, 2024, which primarily consisted of expenditures to purchase property and equipment.
Current wording
Net cash used in investing activities was $42 thousand for thethree months ended March 31, 2025, which primarily consisted of expenditures to purchase property and equipment.
Previous wording
Refer to “Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources” in our third quarter 2023 Quarterly Report on Form 10-Q for a discussion of the cash flows for the nine months ended September 30, 2023.
Current wording
Refer to “Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations — Liquidity and Capital Resources” in our first quarter 2024 Quarterly Report on Form 10-Q for a discussion of the cash flows for the three months ended March 31, 2024.
Previous wording
Our contractual obligations as of September 30, 2024, consisted of minimum cash payments under operating leases of $12.9 million, purchase obligations of $8.0 million (of which $2.4 million is included in current liabilities), and contractual obligations under license agreements of $0.3 million (of which nil is included in current liabilities). Purchase obligations consist of non-cancelable purchase commitments to suppliers. Operating leases represent our future minimum rental commitments under our non-cancelable operating leases. For additional information regarding the timing for our contractual obligations see Note 6, “Commitments and Contingencies” to Condensed Consolidated Financial Statements.
Current wording
Our contractual obligations as of March 31, 2025, consisted of minimum cash payments under operating leases of $11.3 million, purchase obligations of $15.6 million (of which $2.2 million is included in current liabilities), and contractual obligations under license agreements of $0.3 million (of which $10 thousand is included in current liabilities). Purchase obligations consist of non-cancelable purchase commitments to suppliers. Operating leases represent our future minimum rental commitments under our non-cancelable operating leases. For additional information regarding the timing for our contractual obligations see Note 6, “Commitments and Contingencies” to Condensed Consolidated Financial Statements.
Previous wording
In June 2021, we entered into a lease agreement for office space in Dublin, Ireland, which commenced in August 2021 and had an initial term of one year. In addition, we entered into a lease agreement for additional office space in Dublin, Ireland, which commenced in August 2023 and had an initial term of one year. In April 2024, we renewed both leases, each for another one year term with termination dates in July 2025. Both leases have an automatic renewal clause, pursuant to which each agreement will be extended automatically for successive periods equal to their current terms, unless each agreement is cancelled by us.
Current wording
In June 2021, we entered into a lease agreement for office space in Dublin, Ireland, which commenced in August 2021 and had an initial term of one year. In addition, we entered into a lease agreement for additional office space in Dublin, Ireland, which commenced in August 2023 and had an initial term of one year. In April 2025, we renewed both leases, each for another one year term with termination dates in July 2026. Both leases have an automatic renewal clause, pursuant to which each agreement will be extended automatically for successive periods equal to their current terms, unless each agreement is cancelled by us. We do not consider the renewals in the lease term as we do not believe it to be reasonably certain that we will renew these leases, as our real estate needs are subject to change based on our business needs.
Previous wording
In October 2022, we entered into a noncancelable operating sublease to lease approximately 31,157 square feet of office and laboratory space in Brisbane, California. We are obligated to make lease payments totaling approximately $14.9 million over the lease term, which expires on September 30, 2028, unless terminated earlier. Of this obligation, approximately$12.8 million remains outstanding as of September 30, 2024.
Current wording
In October 2022, we entered into a noncancelable operating sublease to lease approximately 31,157 square feet of office and laboratory space in Brisbane, California. We are obligated to make lease payments totaling approximately $14.9 million over the lease term, which expires on September 30, 2028, unless terminated earlier. Of this obligation, approximately $11.3 million remains outstanding as of March 31, 2025
Previous wording
In addition to the contractual obligations above, we also expect to have future material cash requirements related to ourclinical trials, discovery and pre-clinical programs, human capital and intellectual property. Assuming no significant change in our business, we expect the full year 2024 net cash used in operating and investing activities to be approximately $148 million to $160 million.
Current wording
In addition to the contractual obligations above, we also expect to have future material cash requirements related to ourclinical trials, discovery and pre-clinical programs, human capital and intellectual property. Assuming no significant change in our business, we expect the full year 2025 net cash used in operating and investing activities to be approximately $168 million to $175 million.
Rearranged current paragraphs (2)
Current report — wording carried from elsewhere
Fueled by our deep scientific expertise built over decades of research, we are advancing a pipeline of therapeutic candidates for a number of indications and novel targets for which our ability to integrate scientific insights around neurological dysfunction and the biology of misfolded proteins can be leveraged. Our wholly-owned programs include birtamimab for the potential treatment of AL amyloidosis, and a portfolio of programs for the potential treatment of Alzheimer’s disease including
Current report — wording carried from elsewhere
Agreement (See Note 8, “Shareholders’ Equity” to the Condensed Consolidated Financial Statements for more information). We cannot assume that such additional financings will be available on acceptable terms, if at all, and such financings may only be available on terms dilutive to our shareholders.