Prelude Therapeutics Inc

Previous wording

Our novel, first-in-class SMARCA2 degrader compounds and our potent, highly selective and potentially best-in-class CDK9 inhibitor represent our best opportunities for demonstrating clinical proof-of-concept in 2024 and advancing into potential Phase 2/3 registration studies. In 2023, we also announced a global partnership with AbCellera Biologics Incorporated ("AbCellera") that will allow us to combine our small molecules and degraders expertise with their antibody expertise to develop precision antibody drug conjugates. We also intend to explore continued clinical development with external partners for our CDK4/6.

Current wording

Our novel, first-in-class SMARCA2 degrader compounds and our potent, highly selective and potentially best-in-class CDK9 inhibitor represent our best opportunities for demonstrating clinical proof-of-concept in 2024 and advancing into potential Phase 2/3 registration studies. In 2023, we announced a global partnership with AbCellera Biologics Incorporated ("AbCellera") that will allow us to combine our small molecules and degraders expertise with their antibody expertise to develop precision antibody drug conjugates. We also intend to explore continued clinical development with external partners for our CDK4/6 inhibitor.

Previous wording

Patients with SMARCA4 mutations or deletions have poor prognosis and limited treatment options. Therefore, mutated or deleted SMARCA4 cancers provide a potential biomarker to select those patients most likely to respond to treatment with a highly selective SMARCA2 degrader.

Current wording

Patients with SMARCA4 mutations or deletions have a poor prognosis and as a result, this is an area of high unmet medical need. Therefore, mutated or deleted SMARCA4 cancers provide a potential biomarker to select those patients most likely to respond to treatment with a highly selective SMARCA2 degrader.

Previous wording

PRT3789 is currently in Phase 1 clinical development in biomarker selected SMARCA4 mutant patients. To date, PRT3789 has demonstrated selective, potent and dose dependent degradation of SMARCA2 with an acceptable safety profile. Based on PK/PD and safety data to date, the Company expects to conclude monotherapy dose escalation in the middle of 2024 and identify recommended phase 2 doses. In addition, enrollment of patients into back-fill cohorts enriched for NSCLC and SMARCA4 loss-of-function mutations is ongoing. Objectives for this first Phase 1 clinical trial are to establish the safety and tolerability profile of PRT3789 as both monotherapy and in combination with docetaxel, evaluate activity, pharmacokinetics and pharmacodynamics and determine a dose and potential indications for advancement into a registrational clinical trial. We expect to present initial data in the second half of 2024 from patients currently enrolled in the Phase 1 trial.

Current wording

PRT3789 is currently in Phase 1 clinical development in biomarker selected SMARCA4 mutant patients. To date, PRT3789 has demonstrated selective, potent and dose dependent degradation of SMARCA2 with an acceptable safety profile. Based on PK/PD and safety data to date, we expect to conclude monotherapy dose escalation in 2024 and identify a recommended Phase 2 dose. In addition, enrollment of patients into back-fill cohorts enriched for NSCLC and SMARCA4 loss-of-function mutations is ongoing, as is enrollment of combination with the docetaxel cohort. Objectives for this first Phase 1 clinical trial are to establish the safety and tolerability profile of PRT3789 as both monotherapy and in combination with docetaxel, evaluate activity, pharmacokinetics and pharmacodynamics and determine a dose and potential indications for advancement into a registrational clinical trial. We expect to present interim Phase 1 data at the European Society of Medical Oncology (ESMO) Congress 2024 on September 13, 2024 from patients currently enrolled in the Phase 1 trial.

Previous wording

Our discovery team has identified a series of highly selective and orally bioavailable SMARCA2 degraders. The lead oral molecule, PRT7732, is currently in IND enabling studies and on track to enter Phase 1 clinical development in the second half of 2024. PRT7732 is structurally distinct from PRT3789 and in addition, may provide clinically meaningful differences, including potential utility in earlier lines of therapy.

Current wording

Our discovery team has identified a series of highly selective and orally bioavailable SMARCA2 degraders. In July 2024, we received IND clearance for the lead oral molecule, PRT7732, which we believe is on track to enter Phase 1 clinical development in the second half of 2024.

Previous wording

The observed dose-dependent downregulation of MYC and MCL1 mRNA expression, CDK9 transcriptional targets, was consistent with the degree of target engagement required for preclinical efficacy. As predicted by the preclinical models, 12 mg/m2 QW dosing showed optimal target inhibition and has been selected as the optimal dose. The overall safety profile observed in this study supports further development of PRT2527 in hematologic malignancies (NCT05665530). In this study, PRT2527 is advancing as monotherapy in hematological indications, such as B-cell malignancies and acute myeloid leukemia (AML), and we have initiated the combination with zanubrutinib in B-cell malignancies. We expect to complete the monotherapy dose escalation in B-cell malignancies in the middle of 2024. A second cohort of patients with AML is expected to initiate in the first half of 2024.

Current wording

The observed dose-dependent downregulation of MYC and MCL1 mRNA expression, CDK9 transcriptional targets, was consistent with the degree of target engagement required for preclinical efficacy. As predicted by the preclinical models, 12 mg/m2 QW dosing showed optimal target inhibition and has been selected as the optimal dose. The overall safety profile observed in this study supports further development of PRT2527 in hematologic malignancies (NCT05665530). In this study, PRT2527 is advancing as monotherapy in hematological indications, such as B-cell malignancies and acute myeloid leukemia (AML), and we have initiated the combination with zanubrutinib in B-cell malignancies. We expect to complete the monotherapy dose escalation in B-cell malignancies in 2024. Initiation of a second cohort of patients with AML occurred in the first half of 2024. Interim Phase 1 data is on track for presentation in the fourth quarter of 2024.

Previous wording

Since inception, we have devoted substantially all of our resources to developing product and technology rights, conducting research and development, organizing and staffing our company, business planning and raising capital. We have incurred recurring losses, the majority of which are attributable to research and development activities, and negative cash flows from operations. We have funded our operations primarily through the sale of convertible preferred stock, common stock and pre-funded warrants. Our net loss was $31.4 million and $27.7 million for the three months ended March 31, 2024 and 2023, respectively. As of March 31, 2024, we had an accumulated deficit of $487.8 million. Our primary use of cash is to fund operating expenses, which consist primarily of research and development expenditures, and to a lesser extent, general and administrative expenditures. Our ability to generate product revenue sufficient to achieve profitability will depend heavily on the successful development and eventual commercialization of one or more of our current or future product candidates. We expect to continue to incur significant expenses and operating losses for the foreseeable future as we advance our product candidates through all stages of development and clinical trials and, ultimately, seek regulatory approval. In addition, if we obtain marketing approval for any of our product candidates, we expect to incur significant commercialization expenses related to product manufacturing, marketing, sales and distribution. Our net losses may fluctuate significantly from quarter-to-quarter and year-to-year, depending on the timing of our clinical trials and our expenditures on other research and development activities.

Current wording

Since inception, we have devoted substantially all of our resources to developing product and technology rights, conducting research and development, organizing and staffing our company, business planning and raising capital. We have incurred recurring losses, the majority of which are attributable to research and development activities, and negative cash flows from operations. We have funded our operations primarily through the sale of convertible preferred stock, common stock and pre-funded warrants. Our net loss was $66.2 million and $58.1 million for the six months ended June 30, 2024 and 2023, respectively. As of June 30, 2024, we had an accumulated deficit of $522.6 million. Our primary use of cash is to fund operating expenses, which consist primarily of research and development expenditures, and to a lesser extent, general and administrative expenditures. Our ability to generate product revenue sufficient to achieve profitability will depend heavily on the successful development and eventual commercialization of one or more of our current or future product candidates. We expect to continue to incur significant expenses and operating losses for the foreseeable future as we advance our product candidates through all stages of development and clinical trials and, ultimately, seek regulatory approval. In addition, if we obtain marketing approval for any of our product candidates, we expect to incur significant commercialization expenses related to product manufacturing, marketing, sales and distribution. Our net losses may fluctuate significantly from quarter-to-quarter and year-to-year, depending on the timing of our clinical trials and our expenditures on other research and development activities.

Previous wording

To-date, we have not recognized any revenue from any sources, including from product sales, and we do not expect to generate any revenue from the sale of products in the foreseeable future. If our development efforts for our product candidates are successful and result in regulatory approval, or license agreements with third parties, we may generate revenue in the future from product sales. However, there can be no assurance as to when we will generate such revenue, if at all.

Current wording

To-date, we have not recognized any revenue from product sales, and we do not expect to generate any revenue from the sale of products in the foreseeable future. We expect to recognize revenue from our license agreement as we satisfy remaining performance obligations. If our development efforts for our product candidates are successful and result in regulatory approval, or license agreements with third parties, we may generate revenue in the future from product sales. However, there can be no assurance as to when we will generate such revenue, if at all.

Previous wording

Research and development expenses increased from $21.8 million for the three months ended March 31, 2023 to $27.4 million for the three months ended March 31, 2024. Research and development expenses increased primarily due to the timing of our clinical research programs. Research and development expenses may fluctuate from period to period depending upon the stage of certain projects and the level of preclinical and clinical trial-related activities.

Current wording

Research and development expenses increased from $25.0 million for the three months ended June 30, 2023 to $29.5 million for the three months ended June 30, 2024. Research and development expenses increased primarily due to an increase in our chemistry, manufacturing, and controls ("CMC") expense to support our pre-clinical and clinical research programs. Research and development expenses may fluctuate from period to period depending upon the stage of certain projects and the level of preclinical and clinical trial-related activities.

Previous wording

General and administrative expenses decreased from $7.3 million for the three months ended March 31, 2023 to $6.9 million for the three months ended March 31, 2024. General and administrative expenses decreased primarily due to a decrease in non-cash expense related to stock-based compensation, partially offset by an increase in professional fees incurred as we expand our operations to support our research and development efforts.

Current wording

General and administrative expenses increased from $7.4 million for the three months ended June 30, 2023 to $7.7 million for the three months ended June 30, 2024. General and administrative expenses increased primarily due to an increase in professional fees incurred as we expand our operations to support our research and development efforts.

Previous wording

Other income, net increased from $1.4 million for the three months ended March 31, 2023, to $2.9 million for the three months ended March 31, 2024 primarily due to interest earned on the investment of our cash balance as a result of higher interest rates and higher investment balances.

Current wording

Other income, net increased from $2.0 million for the three months ended June 30, 2023, to $2.4 million for the three months ended June 30, 2024 primarily due to interest earned on the investment of our cash balance as a result of higher interest rates and higher investment balances.

Previous wording

As of March 31, 2024, we had $201.9 million in cash, cash equivalents, and marketable securities. We believe that our cash, cash equivalents, and marketable securities as of March 31, 2024 will be sufficient to fund operating expenses and capital expenditure requirements into 2026. Since our inception, we have funded our operations through the sale of convertible preferred stock, common stock, and pre-funded warrants.

Current wording

As of June 30, 2024, we had $179.8 million in cash, cash equivalents, and marketable securities. We believe that our cash, cash equivalents, and marketable securities as of June 30, 2024 will be sufficient to fund operating expenses and capital expenditure requirements into 2026. Since our inception, we have funded our operations through the sale of convertible preferred stock, common stock, and pre-funded warrants.

Previous wording

We did not issue any securities during the first quarter of 2024.

Current wording

We did not issue any securities during the first or second quarter of 2024.

Previous wording

In March 2023, we filed a prospectus supplement to our existing shelf registration statement on Form S-3, or the Shelf Registration Statement. The Shelf Registration Statement permits the offering of up to $400.0 million aggregate dollar amount of shares of our common stock or preferred stock, debt securities, warrants to purchase our common stock, preferred stock or debt securities, subscription rights to purchase our common stock, preferred stock or debt securities and/or units consisting of some or all of these securities, in one or more offerings and in any combination. The Shelf Registration statement expiries in November 2024, and as of March 31, 2024 there was $187.0 million remaining under the Shelf Registration Statement. In March 2023, in connection with filing a prospectus supplement to our Shelf Registration Statement, we entered into an Open Market Sales Agreement (the Sales Agreement) with Jefferies LLC, as the sales agent, pursuant to which we may offer and sell shares of our common stock having an aggregate offering amount of up to $75.0 million. The $75.0 million of common stock that may be issued and sold pursuant to the

Current wording

In March 2023, we filed a prospectus supplement to our existing shelf registration statement on Form S-3 (the "2021 Shelf Registration Statement"). The 2021 Shelf Registration Statement permits the offering of up to $400.0 million aggregate dollar amount of shares of our common stock or preferred stock, debt securities, warrants to purchase our common stock, preferred stock or debt securities, subscription rights to purchase our common stock, preferred stock or debt securities and/or units consisting of some or all of these securities, in one or more offerings and in any combination. The 2021 Shelf Registration Statement expires in November 2024, and as of June 30, 2024 there was $187.0 million remaining under the 2021 Shelf Registration Statement. In March 2023, in connection with filing a prospectus supplement to our 2021 Shelf Registration Statement, we entered into an Open Market Sales Agreement (the "Sales Agreement") with Jefferies LLC, as the sales agent, pursuant to which we may offer and sell shares of our common stock having an aggregate offering amount of up to $75.0 million. The $75.0 million of common stock that may be issued and sold pursuant to the Sales Agreement is included in the $400.0 million of securities that may be issued and sold pursuant to the 2021 Shelf Registration Statement. We will pay Jefferies LLC a commission rate of up to 3.0% of the aggregate gross proceeds from the sale of any shares of common stock pursuant to the Sales Agreement. We have $75.0 million remaining under the Sales Agreement as of June 30, 2024.

Previous wording

During the three months ended March 31, 2024, we used $31.8 million of cash in operating activities. Cash used in operating activities reflected our net loss of $31.4 million and a $5.2 million net increase in our operating assets and liabilities, offset by noncash charges of $4.8 million, which primarily consisted of stock-based compensation. The primary use of cash was to fund our operations related to the development of our product candidates.

Current wording

During the six months ended June 30, 2024, we used $54.8 million of cash in operating activities. Cash used in operating activities reflected our net loss of $66.2 million offset by noncash charges of $10.5 million, which primarily consisted of stock-based compensation, and $0.9 million net decrease in our operating assets and liabilities. The primary use of cash was to fund our operations related to the development of our product candidates.

Previous wording

During the three months ended March 31, 2023, we used $30.1 million of cash in operating activities. Cash used in operating activities reflected our net loss of $27.7 million and a $8.9 million net increase in our operating assets and liabilities, offset by noncash charges of $6.5 million, which primarily consisted of $6.3 million in stock-based compensation. The primary use of cash was to fund our operations related to the development of our product candidates.

Current wording

During the six months ended June 30, 2023, we used $57.8 million of cash in operating activities. Cash used in operating activities reflected our net loss of $58.1 million and a $13.3 million net increase in our operating assets and liabilities, offset by noncash charges of $13.6 million, which primarily consisted of $13.0 million in stock-based compensation. The primary use of cash was to fund our operations related to the development of our product candidates.

Previous wording

During the three months ended March 31, 2024, net cash provided by investing activities of $31.2 million consisted primarily of $37.0 million in proceeds from maturities of marketable securities, partially offset by $5.5 million in purchases of marketable securities. During the three months ended March 31, 2023, net cash provided by investing activities of $18.0 million consisted primarily of $26.0 million in proceeds from maturities of marketable securities partially offset by $7.2 million used for purchases of marketable securities.

Current wording

During the six months ended June 30, 2024, net cash provided by investing activities of $57.3 million consisted primarily of $71.4 million in proceeds from maturities of marketable securities, partially offset by $13.4 million in purchases of marketable securities. During the six months ended June 30, 2023, net cash used in investing activities of $57.4 million consisted primarily of $128.1 million in purchases of marketable securities, partially offset by $72.5 million in proceeds from maturities of marketable securities.

Previous wording

For the three months ended March 31, 2023 net cash used in financing activities was $0.3 million related to the payment of offering costs.

Current wording

For the six months ended June 30, 2024 net cash provided by financing activities was primarily from proceeds received from the issuance of common stock under the employee stock purchase plan, offset by principal payments on our finance lease and the payment of offering costs related to the shelf registration statement. For the six months ended June 30, 2023, net cash provided by financing activities was $111.1 million which was primarily the result of $110.7 million in proceeds received from the sale of common stock and pre-funded warrants, net of issuance costs.

Previous wording

During the three months ended March 31, 2024, there were no material changes to our critical accounting policies and estimates from those described under the heading “Management’s Discussion and Analysis of Financial Condition and Results of Operations-Critical Accounting Estimates” in our 2023 Annual Report on Form 10-K.

Current wording

During the three months ended June 30, 2024, there were no other material changes to our critical accounting policies and estimates from those described under the heading “Management’s Discussion and Analysis of Financial Condition and Results of Operations-Critical Accounting Estimates” in our 2023 Annual Report on Form 10-K.

Previous wording

We are also a “smaller reporting company,” meaning that the market value of our stock held by non-affiliates is less than $700.0 million and our annual revenue is less than $100.0 million during the most recently completed fiscal year. We may continue to be a smaller reporting company after if either (i) the market value of our stock held by non-affiliates is less than $250.0 million or (ii) our annual revenue is less than $100.0 million during the most recently completed fiscal year and the market value of our stock held by non-affiliates is less than $700.0 million. If we are a smaller reporting company at the time we cease to be an emerging growth company, we may continue to rely on exemptions from certain disclosure requirements that are available to smaller reporting companies. Specifically, as a smaller reporting company we may choose to present only the two most recent fiscal years of audited financial statements in our Annual Report on Form 10-K and, similar to emerging growth companies, smaller reporting companies have reduced disclosure obligations regarding executive compensation.

Current wording

We are also a “smaller reporting company,” meaning that the market value of our stock held by non-affiliates is less than $700.0 million and our annual revenue is less than $100.0 million during the most recently completed fiscal year. We may continue to be a smaller reporting company after if either (i) the market value of our stock held by non-affiliates is less than $250.0 million or (ii) our annual revenue is less than $100.0 million during the most recently completed fiscal year and the market value of our stock held by non-affiliates is less than $700.0 million. If we remain a smaller reporting company once we cease to be an emerging growth company, we may continue to rely on exemptions from certain disclosure requirements that are available to smaller reporting companies. Specifically, as a smaller reporting company we may choose to present only the two most recent fiscal years of audited financial statements in our Annual Report on Form 10-K and, similar to emerging growth companies, smaller reporting companies have reduced disclosure obligations regarding executive compensation.