Celldex Therapeutics Inc
For the period ended Jun 30, 2024. Filed Aug 8, 2024.
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.
Jun 30, 2024 · Filed Aug 8, 2024
What changed in Management’s Discussion and Analysis?
Read the current filingPrevious report: 10-Q
Period ended 2024-03-31; filed 2024-05-06.
0001410578-24-000593
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of OperationsCurrent report: 10-Q
Period ended 2024-06-30; filed 2024-08-08.
0001410578-24-001219
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 90 previous paragraphs and 108 current paragraphs.
69 unchanged; 18 reworded; 11 added; 2 removed; 1 previous and 10 current paragraphs rearranged.
Tables are not compared: 54 previous and 58 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 (11)
Current report
In June 2024, data on a secondary endpoint from the study, angioedema activity, and additional measures of angioedema control, were presented at the EAACI 2024 Congress. Approximately 72% of patients on study had angioedema at baseline. Barzolvolimab demonstrated significant improvements in AAS7 in patients with angioedema across all doses at week 12. This improvement was rapid (within 2 weeks) and durable (continued through 12 weeks). Barzolvolimab demonstrated strong improvement in AAS7 independent of omalizumab status at Week 12. Patients on barzolvolimab experienced a > 8 point improvement in AAS7 (considered a clinically meaningful result) across all doses compared to placebo (p<0.05). Barzolvolimab increased angioedema free days compared to placebo through 12 weeks. Patients in the 300 mg cohort were angioedema free 77% of the time over the 12 week period.
Current report
In July 2024, we initiated two Phase 3 studies of barzolvolimab in CSU. The studies, EMBARQ-CSU1 and EMBARQ-CSU2, are designed to establish the efficacy and safety of barzolvolimab in adult patients with CSU who remain symptomatic despite H1 antihistamine treatment. Both Phase 3 trials are randomized, double-blind, placebo-controlled, parallel group, global studies ( approximately 40 countries; 250 sites per study) where approximately 915 patients per trial will be randomized evenly to barzolvolimab 150 mg every 4 weeks (following 300 mg loading dose), barzolvolimab 300 mg every 8 weeks (following 450 mg loading dose) or placebo for 52 weeks. At 24 weeks, patients on placebo will be re-randomized to active treatment across both dosing groups. The primary endpoint of the studies will evaluate the clinical effect of barzolvolimab in reducing urticaria activity (weekly urticaria activity score; UAS7) at week 12. The studies are designed to detect a clinically meaningful difference between each of the active arms versus placebo in the overall population as well as in the subpopulation of omalizumab refractory participants. Enrollment is ongoing.
Current report
Patients on study will continue to receive barzolvolimab for 20 weeks and we plan to report full 12 week primary endpoint data from this study in the fourth quarter of 2024. We believe these results strongly support the further development of barzolvolimab in CIndU and plan to advance CIndU into Phase 3 registrational development.
Current report
CDX-622
Current report
CDX-622 is a bispecific antibody that targets two complementary pathways that drive chronic inflammation, potently neutralizing the alarmin thymic stromal lymphopoietin (TSLP) and depleting mast cells via stem cell factor (SCF) starvation. TSLP has been directly implicated in several respiratory and dermatological disorders, such as asthma, chronic obstructive pulmonary disease (COPD), eosinophilic esophagitis, atopic dermatitis and chronic spontaneous urticaria, and in fibrotic diseases such as systemic sclerosis and idiopathic pulmonary fibrosis. In these disorders, TSLP is often upregulated and associated with disease severity. Similarly, mast cells drive or contribute to the pathophysiology of allergic, inflammatory, autoimmune and fibrotic disorders and CDX-622 contains a unique SCF neutralizing function that is expected to inhibit and deplete mast cells. Combined neutralization of SCF and TSLP with CDX-622 is expected to simultaneously reduce tissue mast cells and inhibit Type 2 inflammatory responses to potentially offer enhanced therapeutic benefit in inflammatory and fibrotic disorders. In preclinical studies, CDX-622 inhibits TSLP and SCF with similar potency to both its respective parental mAbs and comparator mAbsin vitro. CDX-622 was well tolerated in a multi-dose 8 week toxicology study in non-human primates. The No Adverse Event Level (NOAEL) was established to be 75 mg/kg, the highest dose tested. We have completed manufacturing and IND-enabling activities and plan to initiate a Phase 1 study of CDX-622 in healthy volunteers by the end of 2024.
Current report
Six Months Ended June 30, 2024 Compared with Six Months Ended June 30, 2023
Current report
Net Loss
Current report
Revenue
Current report
Research and Development Expense
Current report
General and Administrative Expense
Current report
Investment and Other Income, Net
Removed paragraphs (2)
Previous report
KIT inhibitor. Mild, transient, and asymptomatic decreases in hemoglobin and white blood cell parameters occurred for some patients.
Previous report
week 16. In the 3.0 mg/kg arm, a ≥4-point decrease in WI-NRS reduction was seen as early as the first week and reached a high of 71% of patients at week six which was distinct from both the 1.5 mg/kg barzolvolimab and placebo arms.
Reworded paragraphs (18)
Previous wording
During the past five years through December 31, 2023, we incurred an aggregate of $338.8 million in research and development expenses. The following table indicates the amount incurred for each of our significant research programs and for other identified research and development activities during the three months ended March 31, 2024 and 2023. 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.
Current wording
During the past five years through December 31, 2023, we incurred an aggregate of $338.8 million in research and development expenses. The following table indicates the amount incurred for each of our significant research programs and for other identified research and development activities during the six months ended June 30, 2024 and 2023. 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.
Previous wording
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. We are currently planning Phase 3 studies in CSU which are expected to initiate in summer 2024. Phase 1 studies in CSU and CIndU were successfully completed and Phase 2 studies are ongoing. 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 plan to report 52 week data from this study in the second half of 2024. In April 2024, we announced that we had completed enrollment in the Phase 2 CIndU study and we expect to report data from this study in the second half of 2024.
Current wording
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. 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. In April 2024, we announced enrollment was complete in the ongoing Phase 2 CIndU study. In July 2024, we reported that barzolvolimab achieved the primary efficacy endpoint in this study with a statistically significant difference between the percent of patients with a negative provocation test compared to placebo at week 12 and was well tolerated. We plan to report topline 52 week data from the CSU study and full 12 week primary endpoint data from the CIndU study in the second half of 2024.
Previous wording
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 an ongoing Phase 2 study in eosinophilic esophagitis (EoE) and initiated a Phase 2 study in prurigo nodularis (PN) in April 2024 after reporting positive data from a Phase 1b study in PN in late 2023. We have selected atopic dermatitis as the next indication for the study of barzolvolimab and are currently planning the design of a Phase 2 study in this indication, including in patients who received prior biologics. 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.
Current wording
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 an ongoing Phase 2 study in eosinophilic esophagitis (EoE) and initiated a Phase 2 study in prurigo nodularis (PN) in April 2024 after reporting positive data from a Phase 1b study in PN in late 2023. We have selected atopic dermatitis as the next indication for the study of barzolvolimab and are currently planning the design of a Phase 2 study in this indication, including in patients who received prior biologics, and plan to initiate this study by year end 2024. 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.
Previous wording
Patients on study will continue to receive barzolvolimab for 52 weeks and we plan to report 52 week data in the second half of 2024. We believe these results strongly support the further development of barzolvolimab in CSU and are currently planning two Phase 3 studies of barzolvolimab which we plan to initiate in summer 2024.
Current wording
Patients on study will continue to receive barzolvolimab for 52 weeks and we plan to report 52 week data in the second half of 2024. We believe these results strongly support the further development of barzolvolimab in CSU.
Previous wording
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 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. 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. The primary endpoint of the study is the percentage of patients with a negative provocation test at week 12 (using TempTest(R) and FricTest(R)). Secondary endpoints include safety and other assessments of clinical activity including CTT (Critical Temperature Threshold), CFT (Critical Friction Threshold) and WI-NRS (Worst itch numeric rating scale). Data from this study are expected in the second half of 2024.
Current wording
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 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. 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. The primary endpoint of the study is the percentage of patients with a negative provocation test at week 12. Secondary endpoints include safety and other assessments of clinical activity including CTT (Critical Temperature Threshold), CFT (Critical Friction Threshold) and WI-NRS (Worst itch numeric rating scale). Topline primary endpoint data from this study were reported in July 2024 and showed that barzolvolimab achieved the primary efficacy endpoint, a statistically significant difference between the percent of patients with a negative provocation test compared to placebo at week 12 as assessed by the TempTest® in ColdU and the FricTest® in SD. Importantly, barzolvolimab demonstrated rapid, durable and clinically meaningful responses in patients with CIndU refractory to antihistamines. Demographics and baseline disease characteristics were well balanced across treatment groups.
Previous wording
In April 2024 we initiated a Phase 2 subcutaneous study in PN. 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). Patients are randomly assigned on a 1:1:1 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. Participants then enter a follow-up phase with no study treatment for an additional 16 weeks through week 40. The primary objective of this study is to evaluate the clinical effect of barzolvolimab, compared to placebo, on itch response as measured by the proportion of participants with ≥ 4-point improvement in the worst intensity itch per a numeric rating scale (WI-NRS). Secondary objectives include but are not limited to additional measures of itch response from baseline compared to different timepoints, the assessment of skin lesions as measured by the Investigator Global Assessment (IGA), QoL outcomes and safety. The study will include approximately 50 clinical trial centers worldwide, including the United States.
Current wording
In April 2024, we initiated a Phase 2 subcutaneous study in PN. 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). Patients are randomly assigned on a 1:1:1 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. Participants then enter a follow-up phase with no study treatment for an additional 16 weeks through week 40. The primary objective of this study is to evaluate the clinical effect of barzolvolimab, compared to placebo, on itch response as measured by the proportion of participants with ≥ 4-point improvement in the worst intensity itch per a numeric rating scale (WI-NRS). Secondary objectives include but are not limited to additional measures of itch response from baseline compared to different timepoints, the assessment of skin lesions as measured by the Investigator Global Assessment (IGA), QoL outcomes and safety. The study will include approximately 50 clinical trial centers worldwide, including the United States. Enrollment is ongoing.
Previous wording
In late May 2023, we announced that the first patient had been dosed in the Phase 1 study of CDX-585. This open-label, multi-center, intravenous study of CDX-585 is being evaluated in patients with advanced or metastatic solid tumors that have progressed during or after standard of care therapy. The dose-escalation phase of the study (n=~30 patients) is designed to determine a maximum tolerated dose (MTD) and to select CDX-585 dose(s) for future evaluation in tumor specific expansion cohorts. In the first
Current wording
In late May 2023, we announced that the first patient had been dosed in the Phase 1 study of CDX-585. This open-label, multi-center, intravenous study of CDX-585 is being evaluated in patients with advanced or metastatic solid tumors that have progressed during or after standard of care therapy. The dose-escalation phase of the study (n=~30 patients) is designed to determine a maximum tolerated dose (MTD) and to select CDX-585 dose(s) for future evaluation in tumor specific expansion cohorts. In the first phase, increasing doses of CDX-585 will be administered intravenously (0.03 mg/kg up to 10.0 mg/kg) every 2 weeks until confirmed disease progression, intolerance, or for a maximum of 2 years. In the second phase, potential expansion cohorts will evaluate the safety, tolerability and biologic effects, including anti-tumor activity, of selected dose level(s) of CDX-585 in specific tumor types. Enrollment is ongoing.
Previous wording
Revenue from product development and licensing agreements for the three months ended March 31, 2024 was relatively consistent with the three months ended March 31, 2023. The $0.8 million decrease in contracts and grants revenue for the three months ended March 31, 2024, as compared to the three months ended March 31, 2023, was primarily due to a decrease in revenue from our contract manufacturing and research and development agreements with Rockefeller University. We expect revenue to increase over the next twelve months primarily due to an increase in services expected to be performed under our contract manufacturing and research and development agreements with Rockefeller University.
Current wording
Revenue from product development and licensing agreements for the three months ended June 30, 2024 was relatively consistent with the three months ended June 30, 2023. The $2.2 million increase in contracts and grants revenue for the three months ended June 30, 2024, as compared to the three months ended June 30, 2023, was primarily due to an increase in revenue from our contract manufacturing and research and development agreements with Rockefeller University. We expect revenue to decrease over the next twelve months primarily due to a decrease in services expected to be performed under our contract manufacturing and research and development agreements with Rockefeller University.
Previous wording
Personnel expenses primarily include salary, benefits, stock-based compensation and payroll taxes. The $2.4 million increase in personnel expenses for the three months ended March 31, 2024, as compared to the three months ended March 31, 2023, was primarily due to higher stock-based compensation expense and an increase in employee headcount. We expect personnel expenses to increase over the next twelve months as a result of additional headcount to support the expanded development of barzolvolimab.
Current wording
Personnel expenses primarily include salary, benefits, stock-based compensation and payroll taxes. The $2.9 million increase in personnel expenses for the three months ended June 30, 2024, as compared to the three months ended June 30, 2023, was primarily due to higher stock-based compensation expense and an increase in employee headcount. We expect personnel expenses to increase over the next twelve months as a result of additional headcount to support the expanded development of barzolvolimab.
Previous wording
Product development expenses include clinical investigator site fees, external trial monitoring costs, data accumulation costs, contracted research and outside clinical drug product manufacturing. The $2.2 million increase in product development expenses for the three months ended March 31, 2024, as compared to the three months ended March 31, 2023, was primarily due to an increase in barzolvolimab clinical trial expenses, partially offset by a decrease in barzolvolimab contract manufacturing expenses. We expect product development expenses to increase over the next twelve months as a result of the expanded development of barzolvolimab, although there may be fluctuations on a quarterly basis.
Current wording
Product development expenses include clinical investigator site fees, external trial monitoring costs, data accumulation costs, contracted research and outside clinical drug product manufacturing. The $10.1 million increase in product development expenses for the three months ended June 30, 2024, as compared to the three months ended June 30, 2023, was primarily due to an increase in barzolvolimab clinical trial expenses. We expect product development expenses to increase over the next twelve months as a result of the expanded development of barzolvolimab, although there may be fluctuations on a quarterly basis.
Previous wording
The $2.5 million increase in general and administrative expenses for the three months ended March 31, 2024, as compared to the three months ended March 31, 2023, was primarily due to higher stock-based compensation and barzolvolimab commercial planning expenses. We expect general and administrative expenses to increase over the next twelve months as a result of the expanded development of barzolvolimab and an increase in commercial planning efforts, although there may be fluctuations on a quarterly basis.
Current wording
The $1.9 million increase in general and administrative expenses for the three months ended June 30, 2024, as compared to the three months ended June 30, 2023, was primarily due to higher stock-based compensation and barzolvolimab commercial planning expenses. We expect general and administrative expenses to increase over the next twelve months as a result of the expanded development of barzolvolimab and an increase in commercial planning efforts, although there may be fluctuations on a quarterly basis.
Previous wording
The $4.7 million increase in investment and other income, net for the three months ended March 31, 2024, as compared to the three months ended March 31, 2023, was primarily due to higher levels of cash as a result of our November 2023 and March 2024 underwritten public offerings. We expect investment and other income to remain relatively consistent over the next twelve months, although there may be fluctuations on a quarterly basis.
Current wording
The $7.8 million increase in investment and other income, net for the three months ended June 30, 2024, as compared to the three months ended June 30, 2023, was primarily due to higher levels of cash as a result of our November 2023 and March 2024 underwritten public offerings. We expect investment and other income to remain relatively consistent over the next twelve months, although there may be fluctuations on a quarterly basis.
Previous wording
The $3.4 million increase in net loss for the three months ended March 31, 2024, as compared to the three months ended March 31, 2023, was primarily due to increases in research and development and general and administrative expenses, partially offset by an increase in investment and other income, net.
Current wording
The $8.8 million increase in net loss for the six months ended June 30, 2024, as compared to the six months ended June 30, 2023, was primarily due to increases in research and development and general and administrative expenses, partially offset by an increase in investment and other income, net.
Previous wording
At March 31, 2024, our principal sources of liquidity consisted of cash, cash equivalents and marketable securities of $823.8 million. We have had recurring losses and incurred a loss of $32.8 million for the three months ended March 31, 2024. Net cash used in operations for the three months ended March 31, 2024 was $40.6 million. We believe that the cash, cash equivalents and marketable securities at March 31, 2024 are sufficient to meet estimated working capital requirements and fund current planned operations through 2027. This could be impacted if we elect to pay the future milestone under the Settlement Agreement with SRS in cash, in the event that we achieve the milestone related to that payment.
Current wording
At June 30, 2024, our principal sources of liquidity consisted of cash, cash equivalents and marketable securities of $802.3 million. We have had recurring losses and incurred a loss of $68.7 million for the six months ended June 30, 2024. Net cash used in operations for the six months ended June 30, 2024 was $70.0 million. We believe that the cash, cash equivalents and marketable securities at June 30, 2024 are sufficient to meet estimated working capital requirements and fund current planned operations through 2027. This could be impacted if we elect to pay the future milestone under the Settlement Agreement with SRS in cash, in the event that we achieve the milestone related to that payment.
Previous wording
During the next twelve months, we may take further steps to raise additional capital to meet our long-term liquidity needs including, but not limited to, one or more of the following: the licensing of drug candidates with existing or new collaborative partners, possible business combinations, issuance of debt, or the issuance of common stock or other securities via private placements or public offerings. Although we have been successful in raising capital in the past, there can be no assurance that additional financing will be available on acceptable terms, if at all, and our negotiating position in capital raising efforts may worsen as existing resources are used. There is also no assurance that we will be able to enter into further collaborative relationships. Additional equity financings may be dilutive to our stockholders; debt financing, if available, may involve significant cash payment obligations and covenants that restrict our ability to operate as a business; and licensing or strategic collaborations may result in royalties or other terms which reduce our economic potential from products under development. Our ability to continue funding our planned operations into and beyond twelve months from the issuance date is also dependent on the timing and manner of payment of the future milestone under the Settlement Agreement with SRS, in the event that we achieve the milestone related to that payment. We may decide to pay that milestone payment in cash, shares of our common stock or a combination thereof. If we are unable to raise the funds necessary to meet our long-term liquidity needs, we may have to delay or discontinue the development of one or more programs, discontinue or delay ongoing or anticipated clinical trials, license out programs earlier than expected, raise funds at a significant discount or on other unfavorable terms, if at all, or sell all or a part of our business.
Current wording
During the next twelve months, we may take further steps to raise additional capital to meet our long-term liquidity needs including, but not limited to, one or more of the following: the licensing of drug candidates with existing or new collaborative partners, possible business combinations, issuance of debt, or the issuance of common stock or other securities via private placements or public offerings. Although we have been successful in raising capital in the past, there can be no assurance that additional financing will be available on acceptable terms, if at all, and our negotiating position in capital raising efforts may worsen as existing resources are used. There is also no assurance that we will be able to enter into further collaborative relationships. Additional equity financings may be dilutive to our stockholders; debt financings, if available, may involve significant cash payment obligations and covenants that restrict our ability to operate as a business; and licensing or strategic collaborations may result in royalties or other terms which reduce our economic potential from products under development. Our ability to continue funding our planned operations into and beyond twelve months from the issuance date is also dependent on the timing and manner of payment of the future milestone under the Settlement Agreement with SRS, in the event that we achieve the milestone related to that payment. We may decide to pay that milestone payment in cash, shares of our common stock or a combination thereof. If we are unable to raise the funds necessary to meet our long-term liquidity needs, we may have to delay or discontinue the development of one or more programs, discontinue or delay ongoing or anticipated clinical trials, license out programs earlier than expected, raise funds at a significant discount or on other unfavorable terms, if at all, or sell all or a part of our business.
Previous wording
Net cash used in operating activities was $40.6 million for the three months ended March 31, 2024 as compared to $28.6 million for the three months ended March 31, 2023. The increase in net cash used in operating activities was primarily due to increases in research and development and general and administrative expenses, partially offset by an increase in investment income as a result of higher levels of cash. We expect that cash used in operating activities will increase over the next twelve months as a result of the expanded development of barzolvolimab.
Current wording
Net cash used in operating activities was $70.0 million for the six months ended June 30, 2024 as compared to $55.8 million for the six months ended June 30, 2023. The increase in net cash used in operating activities was primarily due to increases in research and development and general and administrative expenses, partially offset by an increase in investment income as a result of higher levels of cash. We expect that cash used in operating activities will increase over the next twelve months as a result of the expanded development of barzolvolimab.
Previous wording
Net cash used in investing activities was $315.2 million for the three months ended March 31, 2024 compared to net cash provided by investing activities of $52.6 million for the three months ended March 31, 2023. The increase in net cash used in investing activities was primarily due to net purchases of marketable securities of $314.9 million for the three months ended March 31, 2024 as compared to net sales and maturities of marketable securities of $53.2 million for the three months ended March 31, 2023.
Current wording
Net cash used in investing activities was $361.9 million for the six months ended June 30, 2024 compared to net cash provided by investing activities of $53.7 million for the six months ended June 30, 2023. The increase in net cash used in investing activities was primarily due to net purchases of marketable securities of $361.3 million for the six months ended June 30, 2024 as compared to net sales and maturities of marketable securities of $54.7 million for the six months ended June 30, 2023.
Previous wording
Net cash provided by financing activities was $436.1 million for the three months ended March 31, 2024 as compared to $0.7 million for the three months ended March 31, 2023. The increase in net cash provided by financing activities was primarily due to an increase in net proceeds from stock issuances.
Current wording
Net cash provided by financing activities was $439.8 million for the six months ended June 30, 2024 as compared to $0.8 million for the six months ended June 30, 2023. The increase in net cash provided by financing activities was primarily due to an increase in net proceeds from stock issuances.
Rearranged current paragraphs (10)
Current report — wording carried from elsewhere
Barzolvolimab was well tolerated with a favorable safety profile consistent with prior studies. Most adverse events were mild to moderate in severity; through 12 weeks, the most common treatment emergent adverse events in barzolvolimab treated patients were hair color changes (13%) and neutropenia (11%). The rate of infections was similar between barzolvolimab-treated patients and placebo with no association between neutropenia and infections.
Current report — wording carried from elsewhere
The $5.3 million increase in net loss for the three months ended June 30, 2024, as compared to the three months ended June 30, 2023, was primarily due to an increase in research and development expenses, partially offset by an increase in investment and other income, net.
Current report — wording carried from elsewhere
Revenue from product development and licensing agreements for the six months ended June 30, 2024 was relatively consistent with the six months ended June 30, 2023. The $1.4 million increase in contracts and grants revenue for the six months ended June 30, 2024, as compared to the six months ended June 30, 2023, was primarily due to an increase in revenue from our contract manufacturing and research and development agreements with Rockefeller University.
Current report — wording carried from elsewhere
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:
Current report — wording carried from elsewhere
Personnel expenses primarily include salary, benefits, stock-based compensation and payroll taxes. The $5.3 million increase in personnel expenses for the six months ended June 30, 2024, as compared to the six months ended June 30, 2023, was primarily due to higher stock-based compensation expense and an increase in employee headcount.
Current report — wording carried from elsewhere
Laboratory supplies expenses include laboratory materials and supplies, services, and other related expenses incurred in the development of our technology. Laboratory supply expenses for the six months ended June 30, 2024 were relatively consistent with the six months ended June 30, 2023.
Current report — wording carried from elsewhere
Facility expenses include depreciation, amortization, utilities, rent, maintenance and other related expenses incurred at our facilities. Facility expenses for the six months ended June 30, 2024 were relatively consistent with the six months ended June 30, 2023.
Current report — wording carried from elsewhere
Product development expenses include clinical investigator site fees, external trial monitoring costs, data accumulation costs, contracted research and outside clinical drug product manufacturing. The $12.3 million increase in product development expenses for the six months ended June 30, 2024, as compared to the six months ended June 30, 2023, was primarily due to an increase in barzolvolimab clinical trial expenses, partially offset by a decrease in barzolvolimab contract manufacturing expenses.
Current report — wording carried from elsewhere
The $4.4 million increase in general and administrative expenses for the six months ended June 30, 2024, as compared to the six months ended June 30, 2023, was primarily due to higher stock-based compensation and barzolvolimab commercial planning expenses.
Current report — wording carried from elsewhere
The $12.5 million increase in investment and other income, net for the six months ended June 30, 2024, as compared to the six months ended June 30, 2023, was primarily due to higher levels of cash as a result of our November 2023 and March 2024 underwritten public offerings.
Rearranged previous paragraphs (1)
Previous report — wording carried elsewhere
phase, increasing doses of CDX-585 will be administered intravenously (0.03 mg/kg up to 10.0 mg/kg) every 2 weeks until confirmed disease progression, intolerance, or for a maximum of 2 years. In the second phase, potential expansion cohorts will evaluate the safety, tolerability and biologic effects, including anti-tumor activity, of selected dose level(s) of CDX-585 in specific tumor types. Enrollment is ongoing.