Biggest changeMean reduction from baseline in UAS7 at week 24 was 80% in the 1.5 mg/kg dose group (n=7), 70% in the 3.0 mg/kg dose group (n=6) and 77% in the 4.5 mg/kg dose group (n=7). ● Complete response (UAS7=0) at week 12 was 57% in the 1.5 mg/kg dose group, 44% in the 3.0 mg/kg dose group and 67% in the 4.5 mg/kg dose group.
Biggest changePhase 1 CSU: Summary of Clinical Activity Assessments at Week 12 & 24 4.5 mg/kg Q8 3.0 mg/kg Q8 1.5 mg/kg Q4 Mean Reduction Baseline UAS7; % at Week 12 82% (n=9) 67% (n=9) 67% (n=8) Mean Reduction Baseline UAS7; % at Week 24 77% (n=7) 70% (n=6) 80% (n=7) UAS7=0 (Complete Control); % at Week 12 67% 44% 57% UAS7=0 (Complete Control); % at Week 24 43% 67% 57% UAS7≤6 (Well-controlled); % at Week 12 67% 67% 57% UAS7≤6 (Well-controlled); % at Week 24 57% 67% 57% UCT ≥ 12 (Well-controlled); % at Week 12 89% 63% 75% UCT ≥ 12 (Well-controlled); % at Week 24 67% 67% 75% During post-treatment follow up, 71% (10 of 14) of patients who had been treated with doses greater than or equal to 1.5 mg/kg and had a complete response (UAS7=0) at week 12, remained urticaria free at week 24 (patients received last dose of barzolvolimab at week 8).
We completed a Phase 1b open label clinical trial in CIndU in patients refractory to antihistamines, conducted in Germany. This study was designed to evaluate the safety of a single intravenous dose (3 mg/kg) of barzolvolimab in patients with cold urticaria (ColdU) or symptomatic dermographism (SD).
We completed a Phase 1b open label clinical trial in patients with CIndU refractory to antihistamines, conducted in Germany. This study was designed to evaluate the safety of a single intravenous dose (3 mg/kg) of barzolvolimab in patients with cold urticaria (ColdU) or symptomatic dermographism (SD).
Investing Activities Net cash used in investing activities was $105.8 million for the year ended December 31, 2023 compared to net cash provided by investing activities of $89.9 million for the year ended December 31, 2022.
Net cash used in investing activities was $105.8 million for the year ended December 31, 2023 compared to net cash provided by investing activities of $89.9 million for the year ended December 31, 2022.
Financing Activities Net cash provided by financing activities was $218.5 million for the year ended December 31, 2023 compared to $4.1 million for the year ended December 31, 2022. The increase in net cash provided by financing activities was primarily due to an increase in net proceeds from stock issuances.
Net cash provided by financing activities was $218.5 million for the year ended December 31, 2023 compared to $4.1 million for the year ended December 31, 2022. The increase in net cash provided by financing activities was primarily due to an increase in net proceeds from stock issuances.
Patients will then enter a follow-up phase for an additional 24 weeks. In addition, the study includes the option for patients who have symptoms following the treatment phase, including patients who were on placebo, to enroll in an open label extension where all patients receive 300 mg of barzolvolimab every 8 weeks.
Patients then enter a follow-up phase for an additional 24 weeks. In addition, the study includes the option for patients who have symptoms following the treatment phase, including patients who were on placebo, to enroll in an open label extension where all patients receive 300 mg of barzolvolimab every 8 weeks.
Most responses remained durable through to week 12. 63% (5/8) patients reported well controlled disease (UCT ≥12) at week 8 and 50% (4/8) at week 12, respectively. 58 Table of Contents ● Patients also reported improvements in quality of life outcomes as assessed by the Dermatology Life Quality Index (DLQI) which surveys patients’ perceptions of symptoms and feelings, daily activities, leisure, work and school performance, personal relationships and treatment. ● A single dose of barzolvolimab led to marked decreases in tryptase and in skin mast cells.
Most responses remained durable through to week 12. 63% (5/8) patients reported well controlled disease (UCT ≥12) at week 8 and 50% (4/8) at week 12, respectively. ● Patients also reported improvements in quality of life outcomes as assessed by the Dermatology Life Quality Index (DLQI) which surveys patients’ perceptions of symptoms and feelings, daily activities, leisure, work and school performance, personal relationships and treatment. 62 Table of Contents ● A single dose of barzolvolimab led to marked decreases in tryptase and in skin mast cells.
We estimate that clinical trials of the type we generally conduct are typically completed over the following timelines: Estimated Completion Clinical Phase Period Phase 1 1 – 2 Years Phase 2 1 – 5 Years Phase 3 1 – 5 Years 53 Table of Contents The duration and the cost of clinical trials may vary significantly over the life of a project as a result of differences arising during the clinical trial protocol, including, among others, the following: ● the number of patients that ultimately participate in the trial; ● the duration of patient follow-up that seems appropriate in view of results; ● the number of clinical sites included in the trials; ● the length of time required to enroll suitable patient subjects; and ● the efficacy and safety profile of the drug candidate.
We estimate that clinical trials of the type we generally conduct are typically completed over the following timelines: Estimated Completion Clinical Phase Period Phase 1 1 – 2 Years Phase 2 1 – 5 Years Phase 3 1 – 5 Years The duration and the cost of clinical trials may vary significantly over the life of a project as a result of differences arising during the clinical trial protocol, including, among others, the following: ● the number of patients that ultimately participate in the trial; ● the duration of patient follow-up that seems appropriate in view of results; ● the number of clinical sites included in the trials; ● the length of time required to enroll suitable patient subjects; and ● the efficacy and safety profile of the drug candidate.
Research and Development Expense Research and development expenses consist primarily of (i) personnel expenses, (ii) laboratory supply expenses relating to the development of our technology, (iii) facility expenses and (iv) product development expenses associated with our drug candidates as follows: Year Ended Increase/ December 31, (Decrease) 2023 2022 $ % (In thousands) Personnel $ 40,121 $ 32,674 $ 7,447 23 % Laboratory supplies 5,358 6,310 (952) (15) % Facility 4,970 4,764 206 4 % Product development 59,319 32,156 27,163 84 % Personnel expenses primarily include salary, benefits, stock-based compensation and payroll taxes.
Research and Development Expense Research and development expenses consist primarily of (i) personnel expenses, (ii) laboratory supply expenses relating to the development of our technology, (iii) facility expenses and (iv) product development expenses associated with our drug candidates as follows: Year Ended Increase/ December 31, (Decrease) 2023 2022 $ % (In thousands) Personnel $ 40,121 $ 32,674 $ 7,447 23 % Laboratory supplies 5,358 6,310 (952) (15) % Facility 4,970 4,764 206 4 % Product development 59,319 32,156 27,163 84 % 72 Table of Contents Personnel expenses primarily include salary, benefits, stock-based compensation and payroll taxes.
Omalizumab, an IgE inhibitor, provides relief for roughly half of the remaining antihistamine refractory patients. Consequently, there is a need for additional therapies. 55 Table of Contents We have completed a Phase 1b randomized, double-blind, placebo-controlled multi-center study of barzolvolimab in CSU.
Omalizumab, an IgE inhibitor, provides relief for roughly half of the remaining antihistamine refractory patients. Consequently, there is a need for additional therapies. 58 Table of Contents We have completed a Phase 1b randomized, double-blind, placebo-controlled multi-center study of barzolvolimab in CSU.
The primary endpoint of the study was safety; key secondary endpoints include changes from baseline in Worst Itch-Numerical Rating Scale (WI-NRS) & Investigator Global Assessment (IGA). The primary timepoint for evaluation of clinical activity was 8 weeks; patients were followed for safety and efficacy endpoints to 24 weeks.
The primary endpoint of the study was safety; key secondary 64 Table of Contents endpoints include changes from baseline in Worst Itch-Numerical Rating Scale (WI-NRS) & Investigator Global Assessment (IGA). The primary timepoint for evaluation of clinical activity was 8 weeks; patients were followed for safety and efficacy endpoints to 24 weeks.
During the initial 8 week observation period in the 3.0 mg/kg dosing arm, an anaphylactic reaction occurred in a complicated patient with multiple comorbidities; the event fully resolved without sequelae. Generally, AEs seen during the 24-week follow-up period were consistent with comorbidities commonly observed in the PN population.
During the initial 8 week observation period in the 3.0 mg/kg dosing arm, an anaphylactic reaction occurred in a complicated patient with multiple comorbidities; the event fully resolved without sequelae. Generally, adverse events seen during the 24-week follow-up period were consistent with comorbidities commonly observed in the PN population.
The following table indicates the amount incurred for each of our significant research programs and for other identified research and development activities during the years ended December 31, 2023, 2022 and 2021.
The following table indicates the amount incurred for each of our significant research programs and for other identified research and development activities during the years ended December 31, 2024, 2023 and 2022.
The use of our cash flows for operations has primarily consisted of salaries and wages for our employees; facility and facility-related costs for our offices, laboratories and manufacturing facility; fees paid in connection with preclinical studies, clinical studies, 68 Table of Contents contract manufacturing, laboratory supplies and services; and consulting, legal and other professional fees.
The use of our cash flows for operations has primarily consisted of salaries and wages for our employees; facility and facility-related costs for our offices, laboratories and manufacturing facility; fees paid in connection with preclinical studies, clinical studies, contract manufacturing, laboratory supplies and services; and consulting, legal and other professional fees.
This randomized, double-blind, placebo-controlled, parallel group study will evaluate the efficacy and safety profile of 2 dose levels of barzolvolimab compared to placebo in approximately 120 patients with moderate to severe PN who had inadequate response to prescription topical medications, or for whom topical medications are medically inadvisable (such as concerns for safety).
This randomized, double-blind, placebo-controlled, parallel group study is evaluating the efficacy and safety profile of 2 dose levels of barzolvolimab compared to placebo in approximately 120 patients with moderate to severe PN who had inadequate response to prescription topical medications, or for whom topical medications are medically inadvisable (such as concerns for safety).
We expect personnel expenses to increase over the next twelve months as a result of additional headcount to support the expanded development of barzolvolimab. 65 Table of Contents Laboratory supplies expenses include laboratory materials and supplies, services and other related expenses incurred in the development of our technology.
We expect personnel expenses to increase over the next twelve months as a result of additional headcount to support the expanded development of barzolvolimab. Laboratory supplies expenses include laboratory materials and supplies, services and other related expenses incurred in the development of our technology.
The increase in net cash used in investing activities was primarily due to net purchases of marketable securities of $104.0 million for the year ended December 31, 2023 as compared to net 69 Table of Contents sales and maturities of marketable securities of $91.7 million for the year ended December 31, 2022.
The increase in net cash used in investing activities was primarily due to net purchases of marketable securities of $104.0 million for the year ended December 31, 2023 as compared to net sales and maturities of marketable securities of $91.7 million for the year ended December 31, 2022.
Summary of Clinical Activity Assessments at Week 12 300 mg Q8W (n=51) 150 mg Q4W (n=52) 75 mg Q4W (n=53) Placebo (n=51) UAS7 Changes Baseline UAS7 (mean) 31.33 30.75 30.30 30.09 LS Mean change at Week 12 -23.87 -23.02 -17.06 -10.47 LS Mean difference from placebo (Confidence Interval, p value) -13.41 (CI: -17.47, -9.34) p -12.55 (CI:-16.56, -8.55) p -6.60 (CI:-10.71, -2.49) p=0.0017 HSS7 Changes Baseline HSS7 (mean) 14.92 15.05 14.86 14.47 LS Mean change at Week 12 -12.19 -11.19 -8.25 -4.95 LS Mean difference from placebo (Confidence Interval, p value) -7.24 (CI:-9.36, -5.12) p -6.24 (CI:-8.33, -4.16), p -3.31 (CI:-5.40, -1.22), p=0.0020 ISS7 Changes Baseline ISS7 (mean) 16.42 15.70 15.44 15.61 LS Mean change at Week 12 -11.79 -11.68 -8.62 -5.47 LS Mean difference from placebo (Confidence Interval, p value) -6.32 (CI: -8.50, -4.13), p -6.21 (CI: -8.38, -4.04), p -3.16 (CI: -5.41, -0.91), p=0.0061 Responder Analyses/Clinical Responses UAS7=0 (Complete Control) 37.5% 51.1% 22.9% 6.4% UAS7≤6 (Well-controlled) 62.5% 59.6% 41.7% 12.8% UAS7, HSS7 and ISS7 data were analyzed using ANCOVA model and multiple imputation. 57 Table of Contents Barzolvolimab demonstrated strong improvement in UAS7 independent of omalizumab status at Week 12.
Phase 2 CSU: Summary of Clinical Activity Assessments at Week 12 300 mg Q8W (n=51) 150 mg Q4W (n=52) 75 mg Q4W (n=53) Placebo (n=51) UAS7 Changes Baseline UAS7 (mean) 31.33 30.75 30.30 30.09 LS Mean change at Week 12 -23.87 -23.02 -17.06 -10.47 LS Mean difference from placebo (Confidence Interval, p value) -13.41 (CI: -17.47, -9.34) p -12.55 (CI:-16.56, -8.55) p -6.60 (CI:-10.71, -2.49) p=0.0017 HSS7 Changes Baseline HSS7 (mean) 14.92 15.05 14.86 14.47 LS Mean change at Week 12 -12.19 -11.19 -8.25 -4.95 LS Mean difference from placebo (Confidence Interval, p value) -7.24 (CI:-9.36, -5.12) p -6.24 (CI:-8.33, -4.16), p -3.31 (CI:-5.40, -1.22), p=0.0020 ISS7 Changes Baseline ISS7 (mean) 16.42 15.70 15.44 15.61 LS Mean change at Week 12 -11.79 -11.68 -8.62 -5.47 LS Mean difference from placebo (Confidence Interval, p value) -6.32 (CI: -8.50, -4.13), p -6.21 (CI: -8.38, -4.04), p -3.16 (CI: -5.41, -0.91), p=0.0061 Responder Analyses/Clinical Responses UAS7=0 (Complete Control) 37.5% 51.1% 22.9% 6.4% UAS7≤6 (Well-controlled) 62.5% 59.6% 41.7% 12.8% UAS7, HSS7 and ISS7 data were analyzed using ANCOVA model and multiple imputation.
We anticipate that our cash flows from operations will continue to be focused in these areas as we progress our current drug candidates through the clinical trial process and develop additional drug candidates.
We anticipate that our cash 73 Table of Contents flows from operations will continue to be focused in these areas as we progress our current drug candidates through the clinical trial process and develop additional drug candidates.
In July 2022, we announced that the first patient had been dosed in a Phase 2 study in patients with CIndU who remain symptomatic despite antihistamine therapy. The study is being conducted at approximately 85 sites across approximately 12 countries.
In July 2022, we announced that the first patient had been dosed in a Phase 2 study in patients with CIndU who remain symptomatic despite antihistamine therapy; in April 2024, we announced that enrollment was complete. The study is being conducted at approximately 85 sites across approximately 12 countries.
The timing of any new contract manufacturing and research and development agreements, collaboration agreements, government contracts or grants and any payments under these agreements, contracts or grants cannot be easily predicted and may vary significantly from quarter to quarter. At December 31, 2023, our principal sources of liquidity consisted of cash, cash equivalents and marketable securities of $423.6 million.
The timing of any new contract manufacturing and research and development agreements, collaboration agreements, government contracts or grants and any payments under these agreements, contracts or grants cannot be easily predicted and may vary significantly from quarter to quarter. At December 31, 2024, our principal sources of liquidity consisted of cash, cash equivalents and marketable securities of $725.3 million.
Eosinophilic Esophagitis (EoE) In July of 2023, we announced that the first patient had been dosed in a Phase 2 study of eosinophilic esophagitis (EoE). EoE, the most common type of eosinophilic gastrointestinal disease, is a chronic inflammatory disease of the esophagus characterized by the infiltration of eosinophils.
Enrollment is ongoing. 65 Table of Contents Eosinophilic Esophagitis (EoE) In July of 2023, we announced that the first patient had been dosed in a Phase 2 study of eosinophilic esophagitis (EoE). EoE, the most common type of eosinophilic gastrointestinal disease, is a chronic inflammatory disease of the esophagus characterized by the infiltration of eosinophils.
On a quarterly basis, we revalue these obligations and record increases or decreases in their fair value as an adjustment to operating earnings. As of December 31, 2023, the 62 Table of Contents fair value of our contingent consideration was $0.0 million.
On a quarterly basis, we revalue these obligations and record increases or decreases in their fair value as an adjustment to operating earnings. As of December 31, 2024, the fair value of our contingent consideration was $0.0 million.
Research and development expenses consist mainly of clinical trial costs, manufacturing of clinical material, toxicology and other preclinical studies, personnel costs, depreciation, license fees and funding of outside contracted research. Clinical trial expenses include expenses associated with clinical research organization, or CRO, services. Contract manufacturing expenses include expenses associated with contract manufacturing organization, or CMO, services.
Research and development expenses consist mainly of clinical trial costs, manufacturing of clinical material, toxicology and other preclinical studies, personnel costs, depreciation, license fees and funding of outside contracted research. 69 Table of Contents Clinical trial expenses include expenses associated with clinical research organization, or CRO, services.
Barzolvolimab was initially studied in chronic spontaneous urticaria (CSU) and chronic inducible urticaria (CIndU), diseases where mast cell degranulation plays a central role in the onset and progression of the disease. Phase 1 studies in CSU and CIndU were successfully completed and Phase 2 studies are ongoing.
Barzolvolimab was initially studied in chronic spontaneous urticaria (CSU) and chronic inducible urticaria (CIndU), diseases where mast cell degranulation plays a central role in the onset and progression of the disease. In July 2024, we initiated two Phase 3 studies in CSU. Phase 1 studies in CSU and CIndU were successfully completed and Phase 2 studies are ongoing.
We expect that cash used in operating activities will increase over the next twelve months as a result of the expanded development of barzolvolimab. Net cash used in operating activities was $103.7 million for the year ended December 31, 2022 compared to $60.9 million for the year ended December 31, 2021.
We expect that cash used in operating activities will increase over the next twelve months as a result of the expanded development of barzolvolimab. Net cash used in operating activities was $107.3 million for the year ended December 31, 2023 compared to $103.7 million for the year ended December 31, 2022.
General and Administrative Expense The $6.7 million increase in general and administrative expenses for the year ended December 31, 2022, as compared to the year ended December 31, 2021, was primarily due to higher stock-based compensation, legal and barzolvolimab commercial planning expenses.
General and Administrative Expense The $7.6 million increase in general and administrative expenses for the year ended December 31, 2024, as compared to the year ended December 31, 2023, was primarily due to higher stock-based compensation and barzolvolimab commercial planning expenses.
Compensation expense for all stock-based awards is recognized using the straight-line method over the term of vesting or performance. 64 Table of Contents RESULTS OF OPERATIONS Year Ended December 31, 2023 compared with Year Ended December 31, 2022 Year Ended Increase/ Increase/ December 31, (Decrease) (Decrease) 2023 2022 $ % (In thousands) Revenues: Product development and licensing agreements $ 278 $ 56 $ 222 396 % Contracts and grants 6,605 2,301 4,304 187 % Total revenues $ 6,883 $ 2,357 $ 4,526 192 % Operating expenses: Research and development 118,011 82,258 35,753 43 % General and administrative 30,914 27,195 3,719 14 % Gain on fair value remeasurement of contingent consideration — (6,862) (6,862) (100) % Litigation settlement related loss 12,500 15,000 (2,500) (17) % Total operating expenses 161,425 117,591 43,834 37 % Operating loss (154,542) (115,234) 39,308 34 % Investment and other income, net 13,113 2,909 10,204 351 % Net loss $ (141,429) $ (112,325) $ 29,104 26 % Net Loss The $29.1 million increase in net loss for the year ended December 31, 2023, as compared to the year ended December 31, 2022, was primarily due to an increase in research and development expenses and a decrease in the gain on fair value remeasurement of contingent consideration, partially offset by increases in contracts and grants revenue and investment and other income, net.
Year Ended December 31, 2023 compared with Year Ended December 31, 2022 Year Ended Increase/ Increase/ December 31, (Decrease) (Decrease) 2023 2022 $ % (In thousands) Revenues: Product development and licensing agreements $ 278 $ 56 $ 222 396 % Contracts and grants 6,605 2,301 4,304 187 % Total revenues $ 6,883 $ 2,357 $ 4,526 192 % Operating expenses: Research and development 118,011 82,258 35,753 43 % General and administrative 30,914 27,195 3,719 14 % Gain on fair value remeasurement of contingent consideration — (6,862) (6,862) (100) % Litigation settlement related loss 12,500 15,000 (2,500) (17) % Total operating expenses 161,425 117,591 43,834 37 % Operating loss (154,542) (115,234) 39,308 34 % Investment and other income, net 13,113 2,909 10,204 351 % Net loss $ (141,429) $ (112,325) $ 29,104 26 % Net Loss The $29.1 million increase in net loss for the year ended December 31, 2023, as compared to the year ended December 31, 2022, was primarily due to an increase in research and development expenses and a decrease in the gain on fair value remeasurement of contingent consideration, partially offset by increases in contracts and grants revenue and investment and other income, net.
The $1.0 million decrease in laboratory supply expenses for the year ended December 31, 2023, as compared to the year ended December 31, 2022, was primarily due to lower laboratory services, materials and supplies purchases. We expect laboratory supplies expenses to remain relatively consistent over the next twelve months, although there may be fluctuations on a quarterly basis.
The $0.3 million increase in laboratory supply expenses for the year ended December 31, 2024, as compared to the year ended December 31, 2023, was primarily due to higher laboratory services, materials and supplies purchases. We expect laboratory supplies expenses to remain relatively consistent over the next twelve months, although there may be fluctuations on a quarterly basis.
Our inability to raise additional capital, or to do so on terms reasonably acceptable to us, would jeopardize the future success of our business. 54 Table of Contents During the past five years through December 31, 2023, we incurred an aggregate of $338.8 million in research and development expenses.
Our inability to raise additional capital, or to do so on terms reasonably acceptable to us, would jeopardize the future success of our business. 57 Table of Contents During the past five years through December 31, 2024, we incurred an aggregate of $459.7 million in research and development expenses.
The $0.3 million increase in laboratory supply expenses for the year ended December 31, 2022, as compared to the year ended December 31, 2021, was primarily due to higher laboratory services, materials and supplies purchases. Facility expenses include depreciation, amortization, utilities, rent, maintenance and other related expenses incurred at our facilities.
The $1.0 million decrease in laboratory supply expenses for the year ended December 31, 2023, as compared to the year ended December 31, 2022, was primarily due to lower laboratory services, materials and supplies purchases. Facility expenses include depreciation, amortization, utilities, rent, maintenance and other related expenses incurred at our facilities.
Targets are being selected based on new science as well as their compatibility to be used in 61 Table of Contents bispecific antibody formats with our existing antibody programs. Development is focused on emerging, important pathways controlling inflammatory diseases or immunity to tumors.
Targets are being selected based on new science as well as their compatibility to be used in bispecific antibody formats with our existing antibody programs. Development is focused on emerging, important pathways controlling inflammatory diseases.
The $7.4 million increase in personnel expenses for the year ended December 31, 2023, as compared to the year ended December 31, 2022, was primarily due to higher stock-based compensation expense and an increase in employee headcount.
The $11.8 million increase in personnel expenses for the year ended December 31, 2024, as compared to the year ended December 31, 2023, was primarily due to higher stock-based compensation expense and an increase in employee headcount.
Additional Barzolvolimab Development Activities In 2023, we completed the transfer of our current barzolvolimab manufacturing process to a CMO and successfully scaled up the drug substance manufacturing process to produce larger cGMP batches in support of late-stage trials and to prepare for potential commercialization.
Enrollment is ongoing. 66 Table of Contents Additional Barzolvolimab Development Activities In 2023, we completed the transfer of our current barzolvolimab manufacturing process to a CDMO and successfully scaled up the drug substance manufacturing process to produce larger cGMP batches in support of late-stage trials and to prepare for potential commercialization.
The $6.3 million increase in personnel expenses for the year ended December 31, 2022, as compared to the year ended December 31, 2021, was primarily due to higher stock-based compensation expense and an increase in employee headcount. 67 Table of Contents Laboratory supplies expenses include laboratory materials and supplies, services and other related expenses incurred in the development of our technology.
The $7.4 million increase in personnel expenses for the year ended December 31, 2023, as compared to the year ended December 31, 2022, was primarily due to higher stock-based compensation expense and an increase in employee headcount. Laboratory supplies expenses include laboratory materials and supplies, services and other related expenses incurred in the development of our technology.
The 1.5 mg/kg, 3.0 mg/kg and 4.5 mg/kg dose groups showed similar markedly improved urticaria symptoms, including rapid onset of responses (as early as 1 week after the first dose) and prolonged disease control with sustained durability up to 24 weeks.
The 1.5 mg/kg, 3.0 mg/kg and 4.5 mg/kg dose groups showed similar markedly improved urticaria symptoms, including rapid onset of responses (as early as 1 week after the first dose) and prolonged disease control with sustained durability up to 24 weeks. Patients with prior omalizumab therapy also had similar symptom improvement as all patients.
Revenue is recognized based on the costs incurred to date as a percentage of the total estimated costs to fulfill the contract. Incurred cost represents work performed, which corresponds with, and thereby best depicts, the transfer of control to the customer.
Under product development agreements, revenue is generally recognized using a cost-to-cost measure of progress. Revenue is recognized based on the costs incurred to date as a percentage of the total estimated costs to fulfill the contract. Incurred cost represents work performed, which corresponds with, and thereby best depicts, the transfer of control to the customer.
Operating Activities Net cash used in operating activities was $107.3 million for the year ended December 31, 2023 compared to $103.7 million for the year ended December 31, 2022.
Operating Activities Net cash used in operating activities was $157.8 million for the year ended December 31, 2024 compared to $107.3 million for the year ended December 31, 2023.
Litigation Settlement Related Loss We recorded a loss of $15.0 million in the second quarter of 2022 related to the Initial Payment due under the binding settlement term sheet entered with SRS, which was subsequently memorialized in a Settlement Agreement with SRS.
Litigation Settlement Related Loss We recorded a loss of $15.0 million in the second quarter of 2022 related to the Initial Payment due under the Settlement Agreement with SRS.
In November 2023, we reported that barzolvolimab achieved the primary efficacy endpoint in the ongoing Phase 2 CSU study, with a statistically significant mean change from baseline to week 12 of UAS7 (weekly urticaria activity score) compared to placebo and was well tolerated. We are currently planning Phase 3 studies in CSU which are expected to initiate in summer 2024.
In July 2023, we announced that enrollment was complete in the ongoing Phase 2 CSU study. In November 2023, we reported that barzolvolimab achieved the primary efficacy endpoint in this study, with a statistically significant mean change from baseline to week 12 of UAS7 (weekly urticaria activity score) compared to placebo and was well tolerated.
We have had recurring losses and incurred a loss of $141.4 million for the year ended December 31, 2023. Net cash used in operations for the year ended December 31, 2023 was $107.3 million.
We have had recurring losses and incurred a loss of $157.9 million for the year ended December 31, 2024. Net cash used in operations for the year ended December 31, 2024 was $157.8 million.
The expenditures that will be necessary to execute our business plan are subject to numerous uncertainties. Completion of clinical trials may take several years or more, and the length of time generally varies substantially according to the type, complexity, novelty and intended use of a drug candidate.
Completion of clinical trials may take several years or more, and the length of time generally varies substantially according to the type, complexity, novelty and intended use of a drug candidate.
We are encouraged with these findings and believe these data strongly support continued development of barzolvolimab. Bispecific Platform Our next generation bispecific antibody platform is supporting the expansion of our pipeline with additional candidates for inflammatory diseases and oncology.
The final histologic analysis and study report were completed in early 2023 and were consistent with previously reported results. We are encouraged with these findings and believe these data strongly support continued development of barzolvolimab. Bispecific Platform Our next generation bispecific antibody platform is supporting the expansion of our pipeline with additional candidates for inflammatory diseases.
For consultant and non-employee director grants, we may elect to use the contractual term as the expected term in the option-pricing model. Actual volatility and lives of options may be significantly different from our estimates.
For consultant and non-employee director grants, we may elect to use the contractual term as the expected term in the option-pricing model. Actual volatility and lives of options may be significantly different from our estimates. Compensation expense for all stock-based awards is recognized using the straight-line method over the term of vesting or performance.
Most AEs were mild or moderate in severity and resolved while on study. The most common treatment emergent adverse events were hair color changes, COVID-19, headache, neutropenia and urinary tract infections (UTIs). UTIs and COVID-19 were reported as unrelated to treatment. Generally transient, asymptomatic and mild changes in hematologic parameters were observed, consistent with observations from prior studies.
Barzolvolimab was well tolerated. Most adverse events were mild or moderate in severity and resolved while on study. The most common treatment emergent adverse events were hair color changes, COVID-19, headache, neutropenia and urinary tract infections (UTIs). UTIs and COVID-19 were reported as unrelated to treatment.
Patients will be randomly assigned on a 1:1:1 60 Table of Contents ratio to receive barzolvolimab injections of 150 mg Q4W after an initial loading dose of 450 mg, 300 mg Q4W after an initial loading dose of 450 mg, or placebo during a 24‑week Treatment Phase.
Approximately 120 patients will be randomly assigned on a 1:1:1 ratio to receive subcutaneous injections of barzolvolimab at either 150 or 300 mg or placebo every 4 weeks after an initial loading dose of 450 mg or placebo during a 16-week placebo-controlled treatment phase.
The amounts disclosed in the following table reflect direct research and development costs, license fees associated with the underlying technology and an allocation of indirect research and development costs to each program. Year Ended Year Ended Year Ended December 31, 2023 December 31, 2022 December 31, 2021 (In thousands) Barzolvolimab/Anti-KIT Program $ 79,913 $ 51,220 $ 24,395 CDX-585 6,357 9,793 7,133 Other Programs 31,741 21,245 21,783 Total R&D Expense $ 118,011 $ 82,258 $ 53,311 Clinical Development Programs Barzolvolimab (also referred to as CDX-0159) Barzolvolimab is a humanized monoclonal antibody that specifically binds the receptor tyrosine kinase KIT and potently inhibits its activity.
The amounts disclosed in the following table reflect direct research and development costs and an allocation of indirect research and development costs to each program. Year Ended Year Ended Year Ended December 31, 2024 December 31, 2023 December 31, 2022 (In thousands) Barzolvolimab/Anti-KIT Program $ 123,750 $ 79,913 $ 51,220 CDX-622 17,341 16,299 5,613 CDX-585 2,813 6,357 9,793 Other Programs 19,646 15,442 15,632 Total R&D Expense $ 163,550 $ 118,011 $ 82,258 Clinical Development Programs Barzolvolimab (also referred to as CDX-0159) Barzolvolimab is a humanized monoclonal antibody that specifically binds the receptor tyrosine kinase KIT and potently inhibits its activity.
The $19.9 million increase in product development expenses for the year ended December 31, 2022, as compared to the year ended December 31, 2021, was primarily due to an increase in barzolvolimab clinical trial and contract manufacturing expenses.
The $31.3 million increase in product development expenses for the year ended December 31, 2024, as compared to the year ended December 31, 2023, was primarily due to an increase in barzolvolimab clinical trial expenses, partially offset by a decrease in barzolvolimab contract manufacturing expenses.
Net cash provided by financing activities was $4.1 million for the year ended December 31, 2022 compared to $272.4 million for the year ended December 31, 2021. The decrease in net cash provided by financing activities was primarily due to a decrease in net proceeds from stock issuances.
Financing Activities Net cash provided by financing activities was $441.4 million for the year ended December 31, 2024 compared to $218.5 million for the year ended December 31, 2023. The increase in net cash provided by financing activities was primarily due to an increase in net proceeds from stock issuances.
We are focusing our efforts and resources on the continued research and development of ● Barzolvolimab (also referred to as CDX-0159), a monoclonal antibody that specifically binds the KIT receptor and potently inhibits its activity, which is currently being studied across multiple mast cell driven diseases including - Chronic Urticarias: In November 2023, we announced that our Phase 2 study in chronic spontaneous urticaria (CSU) achieved the primary efficacy endpoint (statistically significant mean change from baseline to week 12 of urticaria activity score compared to placebo) and was well tolerated.
We are focusing our efforts and resources on the continued research and development of ● Barzolvolimab (also referred to as CDX-0159), a monoclonal antibody that specifically binds the KIT receptor and potently inhibits its activity, which is currently being studied across multiple mast cell driven diseases including - Chronic Urticarias: We initiated Phase 3 studies in chronic spontaneous urticaria (CSU) in July 2024.
The Company determines revenue recognition through the following steps: ● Identification of the contract, or contracts, with a customer; ● Identification of the performance obligations in the contract; ● Determination of the transaction price; ● Allocation of the transaction price to the performance obligations in the contract; and ● Recognition of revenue when, or as, the Company satisfies a performance obligation.
The Company determines revenue recognition through the following steps: ● Identification of the contract, or contracts, with a customer; ● Identification of the performance obligations in the contract; ● Determination of the transaction price; ● Allocation of the transaction price to the performance obligations in the contract; and ● Recognition of revenue when, or as, the Company satisfies a performance obligation. 68 Table of Contents Revenue for the Company is derived from product development agreements with collaborative partners for the research and development of therapeutic drug candidates.
The $2.3 million decrease in contracts and grants revenue for the year ended December 31, 2022, as compared to the year ended December 31, 2021, was primarily related to a decrease in services performed under our manufacturing and research and development agreements with Rockefeller University and Gilead Sciences.
Revenue The $0.4 million increase in contracts and grants revenue for the year ended December 31, 2024, as compared to the year ended December 31, 2023, was primarily due to an increase in services performed under our manufacturing and research and development agreements with Rockefeller University.
Based on the positive results reported in urticaria, we expanded development of barzolvolimab into additional indications where mast cells are believed to play an important role.
Based on the positive results reported in urticaria, we expanded development of barzolvolimab into additional indications where mast cells are believed to play an important role. We are conducting ongoing Phase 2 studies in eosinophilic esophagitis (EoE), prurigo nodularis (PN) and atopic dermatitis (AD).
Differences between actual expenses and estimated expenses recorded have not been material and are adjusted for in the period in which they become known.
We maintain regular communication with our CROs and CDMOs to assess the reasonableness of our estimates. Differences between actual expenses and estimated expenses recorded have not been material and are adjusted for in the period in which they become known.
As we expected, and consistent with previous findings with KIT blocking antibodies, we were pleased to report in December 2022, that during this recovery period spermatogenesis fully recovered in all male animals as measured by both sperm count and motility. The final histologic analysis and study report were completed in early 2023 and were consistent with previously reported results.
Due to the very high concentrations of barzolvolimab at the end of dosing, the recovery period was approximately one year. As we expected, and consistent with previous findings with KIT blocking antibodies, we were pleased to report in December 2022, that during this recovery period spermatogenesis fully recovered in all male animals as measured by both sperm count and motility.
Chronic Inducible Urticaria (CIndU) CIndUs are forms of urticaria that have an attributable cause or trigger associated with them, typically resulting in hives or wheals. The prevalence of CIndU is estimated at 0.5% of the total population and is reported to overlap in up to 36% of CSU patients (Weller et al. 2010. Hautarzt. 61(8), Bartlett et al. 2018. DermNet.Org).
The prevalence of CIndU is estimated at 0.5% of the total population and is reported to overlap in up to 36% of CSU patients (Weller et al. 2010. Hautarzt. 61(8), Bartlett et al. 2018. DermNet.Org).
Facility expenses for the year ended December 31, 2022 were relatively consistent with the year ended December 31, 2021. Product development expenses include clinical investigator site fees, external trial monitoring costs, data accumulation costs, contracted research and outside clinical drug product manufacturing.
Product development expenses include clinical investigator site fees, external trial monitoring costs, data accumulation costs, contracted research and outside clinical drug product manufacturing.
Approximately 20% (n=41) of enrolled patients received prior treatment with omalizumab and more than half of these patients had omalizumab-refractory disease. These patients experienced a similar clinical benefit as the overall treated population within their individual dosing groups consistent with the barzolvolimab mechanism of action. Barzolvolimab was well tolerated with a favorable safety profile.
These patients experienced a similar clinical benefit as the overall treated population within their individual dosing groups consistent with the barzolvolimab mechanism of action. 60 Table of Contents Barzolvolimab was well tolerated with a favorable safety profile.
We believe our program assets provide us with the strategic options to either retain full economic rights to our innovative therapies or seek favorable economic terms through advantageous commercial partnerships. This approach allows us to maximize the overall value of our technology and product portfolio while best ensuring the expeditious development of each individual product.
We believe our program assets provide us with the strategic options to either retain full economic rights to our innovative therapies or seek favorable economic terms through advantageous commercial partnerships.
Approximately 180 patients in 2 cohorts (differentiated by CIndU subtype) including 90 patients with cold urticaria and 90 patients with symptomatic dermographism will be randomly assigned on a 1:1:1 ratio to receive subcutaneous injections of barzolvolimab at 150 mg every 4 weeks, 300 mg every 8 weeks or placebo during a 20-week treatment phase.
The randomized, double-blind, placebo-controlled, parallel group Phase 2 study is evaluating the efficacy and safety profile of multiple dose regimens of barzolvolimab in patients with CIndU to determine the optimal dosing strategy. 196 patients in 2 cohorts (differentiated by CIndU subtype) including 97 patients with cold urticaria and 99 patients with symptomatic dermographism were randomly assigned on a 1:1:1 ratio to receive subcutaneous injections of barzolvolimab at 150 mg every 4 weeks, 300 mg every 8 weeks or placebo during a 20-week treatment phase.
The invoicing from CROs and CMOs for services rendered can lag several months. We accrue the cost of services rendered in connection with CRO and CMO activities based on our estimate of costs incurred. We maintain regular communication with our CROs and CMOs to assess the reasonableness of our estimates.
Contract manufacturing expenses include expenses associated with contract development & manufacturing organization, or CDMO, services. The invoicing from CROs and CDMOs for services rendered can lag several months. We accrue the cost of services rendered in connection with CRO and CDMO activities based on our estimate of costs incurred.
If a project is completed, the carrying value of the related intangible asset is amortized over the remaining estimated life of the asset beginning in the period in which the project is completed.
These assets are capitalized on our balance sheets until either the project underlying them is completed or the assets become impaired. If a project is completed, the carrying value of the related intangible asset is amortized over the remaining estimated life of the asset beginning in the period in which the project is completed.
During the third quarter of 2021, we issued 6,845,238 shares of common stock in an underwritten public offering resulting in net proceeds of $269.9 million, after deducting underwriting fees and offering expenses.
In March 2024, we issued 9,798,000 shares of our common stock in an underwritten public offering resulting in net proceeds of $432.3 million, after deducting underwriting fees and offering expenses.
Data from this study were reported across multiple medical meetings, including the American Academy of Allergy, Asthma & Immunology (AAAAI) Annual Meeting in February 2023, the European Academy of Allergy and Clinical Immunology (EAACI) Annual Congress in June 2023 and the European Academy of Dermatology & Venereology (EADV) Congress in October 2023.
Data from this study were reported across multiple medical meetings, including the American Academy of Allergy, Asthma & Immunology (AAAAI) Annual Meeting in February 2023, the European Academy of Allergy and Clinical Immunology (EAACI) Annual Congress in June 2023 and the European Academy of Dermatology & Venereology (EADV) Congress in October 2023. 59 Table of Contents In June 2022, we initiated dosing in a Phase 2 study in patients with CSU who remained symptomatic despite antihistamine therapy; in July 2023, we announced that enrollment was complete.
Equity Offerings In November 2023, we filed an automatic shelf registration statement with the SEC to register for sale any combination of the types of securities described in the shelf registration statement. On February 26, 2024, we entered into a controlled equity offering sales agreement with Cantor Fitzgerald & Co.
Equity Offerings In November 2023, we filed an automatic shelf registration statement with the SEC to register for sale any combination of the types of securities described in the shelf registration statement, including shares of our common stock.
A Phase 2 study in chronic inducible urticaria (CIndU) is currently enrolling patients and we expect to report data from this study in the second half of 2024; - Prurigo Nodularis (PN): In November 2023, we reported positive data from a Phase 1b study in PN that supports further development of barzolvolimab in this indication and we are currently planning for the initiation of a Phase 2 study in PN in early 2024; - Eosinophilic Esophagitis (EoE): A Phase 2 study in EoE was initiated in June 2023 and enrollment is ongoing. ● Our next generation bispecific antibody platform to support pipeline expansion with additional candidates for inflammatory diseases and oncology.
Patients on study continued to receive barzolvolimab for 20 weeks of treatment; - Prurigo Nodularis (PN): In April 2024, we initiated a Phase 2 study in PN and enrollment is ongoing; positive data from a Phase 1b study in PN was reported in November 2023; - Eosinophilic Esophagitis (EoE): A Phase 2 study in EoE was initiated in June 2023 and is fully accrued; and - Atopic Dermatitis (AD): A Phase 2 study in AD was initiated in December 2024 and enrollment is ongoing. ● Our next generation bispecific antibody platform to support pipeline expansion with additional candidates for inflammatory diseases.
Mast cells through their interactions with sensory neurons and other immune cells are believed to play an important role in amplifying chronic itch and neuroinflammation, both of which are a hallmark of PN. There is currently only one FDA approved therapy for PN, representing an area of significant unmet need.
PN is a chronic skin disease characterized by the development of hard, intensely itchy (pruritic) nodules on the skin. Mast cells through their interactions with sensory neurons and other immune cells are believed to play an important role in amplifying chronic itch and neuroinflammation, both of which are a hallmark of PN.
We expect revenue to remain relatively consistent over the next twelve months, although there may be fluctuations on a quarterly basis.
We expect investment and other income to decrease over the next twelve months due to lower levels of cash and investment balances, although there may be fluctuations on a quarterly basis.
Revenue for the Company is derived from product development agreements with collaborative partners for the research and development of therapeutic drug candidates. The terms of the agreements may include nonrefundable signing and licensing fees, funding for research, development and manufacturing, milestone payments and royalties on any product sales derived from collaborations.
The terms of the agreements may include nonrefundable signing and licensing fees, funding for research, development and manufacturing, milestone payments and royalties on any product sales derived from collaborations. The Company assesses the multiple obligations typically within product development contracts to determine the distinct performance obligations and how to allocate the arrangement consideration to each distinct performance obligation.
During the fourth quarter of 2023, we issued 8,538,750 shares of common stock in an underwritten public offering resulting in net proceeds of $216.2 million, after deducting underwriting fees and offering expenses.
Also in November 2023, we issued 8,538,750 shares of our common stock in an underwritten public offering resulting in net proceeds of $216.2 million, after deducting underwriting fees and offering expenses. On February 26, 2024, we entered into a controlled equity offering sales agreement (“ATM Agreement”) with Cantor Fitzgerald & Co.
As a standard part of toxicology studies, some animals from each group continued to be observed through a recovery period to understand the reversibility of any adverse findings. Due to the very high concentrations of barzolvolimab at the end of dosing, the recovery period was approximately one year.
The only clinically adverse finding at the completion of dosing was a profound impact on spermatogenesis, an expected and well understood effect of KIT inhibition. As a standard part of toxicology studies, some animals from each group continued to be observed through a recovery period to understand the reversibility of any adverse findings.
The increase in net cash provided by investing activities was primarily due to net sales and maturities of marketable securities of $91.7 million for the year ended December 31, 2022 as compared to net purchases of $214.9 million for the year ended December 31, 2021.
The increase in net cash used in investing activities was primarily due to net purchases of marketable 74 Table of Contents securities of $288.2 million for the year ended December 31, 2024 as compared to $104.0 million for the year ended December 31, 2023.
We believe that the cash, cash equivalents and marketable securities at December 31, 2023 are sufficient to meet estimated working capital requirements and fund current planned operations into 2026. This could be impacted if we elect to pay the future milestone under the Settlement Agreement with SRS, if any, in cash.
We believe that the cash, cash equivalents and marketable securities at December 31, 2024 are sufficient to meet estimated working capital requirements and fund current planned operations through 2027.
In order to utilize excess capacity, the Company has, from time to time, entered into contract manufacturing and research and development arrangements in which services are provided on a time-and-material basis or at a negotiated fixed- price. Revenue from time-and-material contracts is generally recognized on an output basis as labor hours and/or direct expenses are incurred.
The Company operates a cGMP manufacturing facility in Fall River, Massachusetts, to produce drug substance for its current and planned early-stage clinical trials. In order to utilize excess capacity, the Company has, from time to time, entered into contract manufacturing and research and development arrangements in which services are provided on a time-and-material basis or at a negotiated fixed- price.
Net cash provided by investing activities was $89.9 million for the year ended December 31, 2022 compared to net cash used in investing activities of $216.2 million for the year ended December 31, 2021.
Investing Activities Net cash used in investing activities was $290.1 million for the year ended December 31, 2024 compared to $105.8 million for the year ended December 31, 2023.
Industry 59 Table of Contents sources estimate there are approximately 154,000 patients in the United States with PN who have undergone treatment within the last 12 months and, of these, approximately 75,000 would be biologic-eligible. We have completed a Phase 1b multi-center, randomized, double-blind, placebo-controlled intravenous study in PN.
There is currently only one FDA approved therapy for PN, representing an area of significant unmet need. Industry sources estimate there are approximately 154,000 patients in the United States with PN who have undergone treatment within the last 12 months and, of these, approximately 75,000 would be biologic-eligible.
Facility expenses include depreciation, amortization, utilities, rent, maintenance and other related expenses incurred at our facilities. The $0.2 million increase in facility expenses for the year ended December 31, 2023, as compared to the year ended December 31, 2022, was primarily due to higher repairs and depreciation expense.
The $0.2 million increase in facility expenses for the year ended December 31, 2023, as compared to the year ended December 31, 2022, was primarily due to higher repairs and depreciation expense. Product development expenses include clinical investigator site fees, external trial monitoring costs, data accumulation costs, contracted research and outside clinical drug product manufacturing.
We continue to assess potential opportunities for barzolvolimab in other diseases where mast cells play an important role, such as dermatologic, respiratory, allergic, gastrointestinal and ophthalmic conditions. Chronic Spontaneous Urticaria (CSU) CSU presents as itchy hives, angioedema or both for at least six weeks without a specific trigger; multiple episodes can play out over years or even decades.
CSU presents as itchy hives, angioedema or both for at least six weeks without a specific trigger; multiple episodes can play out over years or even decades.
The increase in net cash used in operating activities was primarily due to increases in research and development and general and administrative expenses and the $15.0 million Initial Payment made to SRS under the Settlement Agreement.
The increase in net cash used in operating activities was primarily due to increases in research and development and general and administrative expenses and an increase in advance payments to clinical research and contract manufacturing organizations, partially offset by an increase in investment income as a result of higher levels of cash and a decrease in payments made under the Settlement Agreement with SRS.
We are currently planning for the initiation of a Phase 2 subcutaneous study in PN in early 2024.
In April 2024, we initiated a Phase 2 subcutaneous study in PN.
Under fixed-price contracts, revenue is generally recognized on an output basis as progress is made toward completion of the performance obligations using surveys of performance completed to date. Intangible and Long-Lived Assets We evaluate the recoverability of our long-lived assets, including property and equipment when circumstances indicate that an event of impairment may have occurred.
Revenue from time-and-material contracts is generally recognized on an output basis as labor hours and/or direct expenses are incurred. Under fixed-price contracts, revenue is generally recognized on an output basis as progress is made toward completion of the performance obligations using surveys of performance completed to date.