– Enrollment continues globally in multiple clinical studies of vepdegestrant (ARV-471) in ER+/HER2- metastatic breast cancer, including the VERITAC-2 Phase 3 trial in the second-line setting and the study lead-in for the VERITAC-3 Phase 3 trial in the first-line setting –
– Pending further data and discussions with regulatory authorities, the expanded development plan for vepdegestrant will include a new Phase 3 trial in combination with CDK4/6 inhibitors in the second-line setting and a new Phase 3 trial of vepdegestrant plus Pfizer’s novel CDK4 inhibitor
in the first-line setting –
– Prioritized second-generation PROTAC® AR degrader ARV-766 after updated data showed robust efficacy in tumors with all AR LBD mutations in mCRPC –
– Received regulatory clearance to initiate first-in-human Phase 1 clinical trials for PROTAC® targeting BCL6 and the first neuroscience PROTAC® degrader targeting LRRK2 –
“Our focused execution in 2023 enabled us to progress multiple trials across our entire portfolio and we are well-positioned for a catalyst rich year ahead, including completing our first Phase 3 trial,” said
Recent Developments and Fourth Quarter Business Highlights
Vepdegestrant (ARV-471)
- Received
U.S. Food and Drug Administration Fast Track designation for the investigation of vepdegestrant for monotherapy in the treatment of adults with estrogen receptor (ER) positive/human growth epidermal growth factor 2 (HER2) negative (ER+/HER2-) locally advanced or metastatic breast cancer previously treated with endocrine-based therapy. - Presented interim results (data cutoff:
June 6, 2023 ) from the Phase 1b vepdegestrant and palbociclib (IBRANCE®) combination cohort at the 2023 San Antonio Breast Cancer Symposium (SABCS), which demonstrated encouraging clinical activity in heavily pre-treated patients with locally advanced or metastatic ER+/HER2- breast cancer with a median of four lines of therapy across disease settings.- A clinical benefit rate (CBR, defined as the rate of confirmed complete response, partial response, or stable disease ≥ 24 weeks) of 63% (95% CI: 47.5–76.8), or 29/46 patients; at the recommended Phase 3 dose of 200 mg (n=21), the CBR was 67% (95% CI: 43.0 – 85.4), or 14/21 patients.
- An objective response rate (ORR) in evaluable patients with measurable disease at baseline (n=31) of 42% (95% CI: 24.5–60.9), or 13/31 patients; at the RP3D of 200 mg (n=15), the ORR was 53% (95% CI: 26.6 – 78.7); the median duration of response was 10.2 months.
- Median progression free survival (PFS) of 11.1 months (95% CI: 8.2 – NE); 22 of 46 patients across all doses had progression events by time of data cutoff.
- Median PFS of 11.1 and 11.0 months in patients with ESR1 wild-type and ESR1 mutant tumors, respectively.
- The safety profile of vepdegestrant plus palbociclib was manageable. The primary toxicity was neutropenia, which was managed with palbociclib dose modifications (reductions and/or interruptions) per protocol. There was no febrile neutropenia and 3 of 46 patients discontinued due to neutropenia.
- Initiated Phase 1b/2 with vepdegestrant plus Pfizer’s novel CDK4 inhibitor (PF-07220060) (TACTIVE-K: ClinicalTrials.gov Identifier: NCT06206837).
- Initiated an additional arm of the Phase 1b/2 combination umbrella trial with the CDK7 inhibitor samuraciclib (TACTIVE-U: ClinicalTrials.gov Identifiers: NCT05548127, NCT05573555, and NCT06125522).
- Completed enrollment in the TACTIVE-N Phase 2 trial of vepdegestrant as a monotherapy in the neoadjuvant setting in patients with ER+/HER2- localized breast cancer (ClinicalTrials.gov Identifier: NCT05549505).
- Completed enrollment in the TACTIVE-E Phase 1 trial of vepdegestrant in combination with everolimus for the treatment of advanced or metastatic ER+/HER2- breast cancer (ClinicalTrials.gov Identifier: NCT05501769).
Androgen Receptor PROTAC® degraders
- Presented data from the Phase 1/2 clinical trial with bavdegalutamide (ARV-110) at the
European Society for Medical Oncology (ESMO) Congress showing a median radiographic progression free survival (rPFS) of 11.1 months in patients with AR 878/875 tumor mutations, demonstrating the strong potential for a PROTAC® AR degrader in prostate cancer.- Manageable tolerability profile with no grade >4 treatment-related adverse events (TRAEs).
- Selected our second generation PROTAC® AR degrader, ARV-766, as the lead program in prostate cancer and prioritized the initiation of a Phase 3 trial with ARV-766 in metastatic castrate resistant prostate cancer (mCRPC).
- New interim data from Phase 1/2 trial with ARV-766 showed a broader efficacy profile and superior tolerability versus bavdegalutamide in the clinical setting, with a potentially differentiated profile against other AR-directed therapies.
- Completed enrollment in the bavdegalutamide Phase 1b combination trial with abiraterone.
Pipeline
- Received authorization from the
European Medicines Agency to initiate clinical trials with the Company’s new PROTAC® degrader, ARV-102, designed to target the LRRK2 protein. - Initiated first-in-human Phase 1 clinical trial in healthy volunteers with LRRK2 targeting PROTAC® ARV-102.
- Received clearance from the
U.S. Food and Drug Administration to initiate clinical trials with the Company’s PROTAC® degrader, ARV-393, designed to target the BCL6 protein.
Corporate
- Completed oversubscribed
$350 million private placement co-led byEcoR1 Capital andRTW Investments LP , with participation by new and existing investors. - Announced the resignation of Chief Financial Officer and Treasurer,
Sean Cassidy , effectiveFebruary 29, 2024 . - Announced the appointment of
Randy Teel , Ph.D., Arvinas’ current senior vice president of corporate and business development, to the role of interim chief financial officer and treasurer.- The Arvinas Board of Directors has launched a formal search process to identify Mr. Cassidy’s permanent replacement.
- Appointed
Jared Freedberg , J.D., as general counsel. - Entered into a new collaboration with Pfizer to identify novel chemical matter for E3 ligases leveraging Pfizer’s proprietary compound libraries and Arvinas’ ligase ligand expertise.
Anticipated Upcoming Milestones and Expectations
Vepdegestrant (ARV-471)
As part of Arvinas’ global collaboration with Pfizer, the companies plan to:
- Complete enrollment of the VERITAC-2 Phase 3 monotherapy trial (ClinicalTrials.gov Identifier: NCT05654623) in patients with metastatic breast cancer (2H 2024).
- Continue enrollment in the study lead-in for the VERITAC-3 Phase 3 trial of vepdegestrant and palbociclib as a first-line treatment in patients with ER+/HER2- locally advanced or metastatic breast cancer.
- Continue enrollment of the ongoing Phase 1b/2 clinical trial with vepdegestrant plus Pfizer’s novel CDK4 inhibitor (PF-07220060) (TACTIVE-K: ClinicalTrials.gov Identifier: NCT06206837).
- Continue enrollment of the ongoing Phase 1b combination umbrella trial evaluating combinations of vepdegestrant with abemaciclib, ribociclib, or samuraciclib (TACTIVE-U: ClinicalTrials.gov Identifiers: NCTC05548127, NCTC05573555, and NCT06125522).
- Initiate discussion with regulatory authorities on a second-line Phase 3 trial of vepdegestrant in combination with palbociclib and potentially other CDK4/6 inhibitors, and a new first-line Phase 3 trial of vepdegestrant plus Pfizer’s novel CDK4 inhibitor (PF-07220060).
ARV-766
- Continue enrollment of Phase 2 dose expansion study with ARV-766, with progression free survival data anticipated in mid-2024.
- Continue enrollment of Phase 1b/2 dose escalation trial with ARV-766 in combination with abiraterone in patients who have not previously received novel hormonal agents.
- Initiate discussions with regulatory authorities for a planned Phase 3 clinical trial with ARV-766 in mCRPC (2Q 2024).
Pipeline
- Continue enrollment in Phase 1 clinical trial in healthy volunteers with LRRK2 targeting PROTAC® ARV-102 (2024)
- Initiate first-in-human Phase 1 clinical trial in B-cell lymphomas with BCL6 targeting PROTAC® ARV-393 (1H 2024)
Financial Guidance
Based on its current operating plan,
Full Year and Fourth Quarter Financial Results
Cash, Cash Equivalents and Marketable Securities Position: As of
Research and Development Expenses: Research and development expenses were
General and Administrative Expenses: General and administrative expenses were
Revenues: Revenue was
About bavdegalutamide (ARV-110) and ARV-766
Bavdegalutamide (ARV-110) and ARV-766 are investigational orally bioavailable PROTAC® protein degraders designed to selectively target and degrade the androgen receptor (AR). Bavdegalutamide and ARV-766 are being developed as potential treatments for men with prostate cancer. Preclinically, both investigational agents have demonstrated activity in models of wild type tumors in addition to tumors with AR mutation or amplification, both common mechanisms of resistance to currently available AR-targeted therapies.
About vepdegestrant (ARV-471)
Vepdegestrant is an investigational, orally bioavailable PROTAC® protein degrader designed to specifically target and degrade the estrogen receptor (ER) for the treatment of patients with early and locally advanced or metastatic ER positive/human epidermal growth factor receptor 2 (HER2) negative (ER+/HER2-) breast cancer. Use of vepdegestrant in the ongoing and planned clinical trials will continue to monitor and evaluate patient safety and anti-tumor activity.
In preclinical studies, vepdegestrant demonstrated up to 97% ER degradation in tumor cells, induced tumor shrinkage when dosed as a single agent in multiple ER-driven xenograft models, and showed increased anti-tumor activity when compared to a standard of care agent, fulvestrant, both as a single agent and in combination with a CDK4/6 inhibitor. In
About Arvinas
Forward-Looking Statements
This press release contains forward-looking statements within the meaning of The Private Securities Litigation Reform Act of 1995 that involve substantial risks and uncertainties, including statements regarding plans with respect to an expanded development plan for vepdegestrant including a new Phase 3 trial in combination with CDK4/6 inhibitors in the second-line setting and a new Phase 3 trial of vepdegestrant plus Pfizer’s novel CDK4 inhibitor in the first-line setting, pending further data and discussions with regulatory authorities; the anticipated timing to complete Arvinas’ first Phase 3 clinical trial with vepdegestrant; the potential, pending regulatory approval, for vepdegestrant to address an area of high unmet need and offer patients a new oral treatment option in the second-line metastatic breast cancer setting; Arvinas’ and Pfizer’s plans with respect to the timing of ongoing and planned clinical trials of vepdegestrant, as a monotherapy and in combination studies, and the initiation of discussions with regulatory authorities regarding new potential clinical trials; Arvinas’ plans with respect to its clinical trials of ARV-766, the anticipated timing of progression free survival data for the Phase 2 dose expansion study of ARV-766 and the initiation of discussions with regulatory authorities for a planned Phase 3 clinical trials of ARV-766; Arvinas’ plans with respect to its ARV-102 clinical trial and timing related to initiating the first-in-human Phase 1 clinical trial in B-cell lymphomas with BCL6 targeting PROTAC®; the potential advantages and therapeutic benefits of vepdegestrant (ARV-471), ARV-766, bavdegalutamide, and Arvinas’ other discovery programs, including LRRK2 and BCL6; and the sufficiency of Arvinas’ cash, cash equivalents, restricted cash and marketable securities resources to fund planned operating expenses and capital expenditure requirements. All statements, other than statements of historical facts, contained in this press release, including statements regarding Arvinas’ strategy, future operations, future financial position, future revenues, projected costs, prospects, plans and objectives of management, are forward-looking statements. The words “anticipate,” “believe,” “estimate,” “expect,” “intend,” “may,” “might,” “plan,” “predict,” “project,” “target,” “potential,” “will,” “would,” “could,” “should,” “continue,” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words.
Contacts
Investors:
+1 (347) 247-5089
Jeff.Boyle@arvinas.com
Media:
+1 (760) 622-3771
Kathleen.Murphy@arvinas.com
Consolidated Balance Sheets (Unaudited) | |||||||
(dollars and shares in millions, except per share amounts) | 2023 | 2022 | |||||
Assets | |||||||
Current assets: | |||||||
Cash and cash equivalents | $ | 311.7 | $ | 81.3 | |||
Restricted cash | 5.5 | 5.5 | |||||
Marketable securities | 949.3 | 1,124.0 | |||||
Accounts receivable | — | 1.0 | |||||
Other receivables | 7.2 | 7.0 | |||||
Prepaid expenses and other current assets | 6.5 | 21.4 | |||||
Total current assets | 1,280.2 | 1,240.2 | |||||
Property, equipment and leasehold improvements, net | 11.5 | 13.4 | |||||
Operating lease right of use assets | 2.5 | 4.4 | |||||
Collaboration contract asset and other assets | 10.4 | 10.8 | |||||
Total assets | $ | 1,304.6 | $ | 1,268.8 | |||
Liabilities and stockholders' equity | |||||||
Current liabilities: | |||||||
Accounts payable and accrued liabilities | $ | 92.2 | $ | 74.7 | |||
Deferred revenue | 163.0 | 218.6 | |||||
Current portion of operating lease liability | 1.9 | 1.8 | |||||
Total current liabilities | 257.1 | 295.1 | |||||
Deferred revenue | 386.2 | 405.1 | |||||
Long term debt | 0.8 | 1.0 | |||||
Operating lease liability | 0.5 | 2.7 | |||||
Total liabilities | 644.6 | 703.9 | |||||
Stockholders' equity: | |||||||
Preferred stock, | — | — | |||||
Common stock, | 0.1 | 0.1 | |||||
Accumulated deficit | (1,332.7 | ) | (965.4 | ) | |||
Additional paid-in capital | 1,995.7 | 1,549.4 | |||||
Accumulated other comprehensive loss | (3.1 | ) | (19.2 | ) | |||
Total stockholders' equity | 660.0 | 564.9 | |||||
Total liabilities and stockholders' equity | $ | 1,304.6 | $ | 1,268.8 |
Consolidated Statements of Operations (Unaudited) | |||||||||||||||
Three Months Ended | Year Ended | ||||||||||||||
(dollars and shares in millions, except per share amounts) | 2023 | 2022 | 2023 | 2022 | |||||||||||
Revenue | $ | (43.1 | ) | $ | 38.0 | $ | 78.5 | $ | 131.4 | ||||||
Operating expenses: | |||||||||||||||
Research and development | 95.2 | 98.3 | 379.7 | 315.0 | |||||||||||
General and administrative | 27.0 | 15.1 | 100.3 | 79.6 | |||||||||||
Total operating expenses | 122.2 | 113.4 | 480.0 | 394.6 | |||||||||||
Loss from operations | (165.3 | ) | (75.4 | ) | (401.5 | ) | (263.2 | ) | |||||||
Interest and other income | 12.1 | 6.3 | 37.6 | 12.2 | |||||||||||
Net loss before income taxes and loss from equity method investment | (153.2 | ) | (69.1 | ) | (363.9 | ) | (251.0 | ) | |||||||
Income tax expense | (1.6 | ) | (10.8 | ) | (0.9 | ) | (20.9 | ) | |||||||
Loss from equity method investment | — | (3.0 | ) | (2.5 | ) | (10.6 | ) | ||||||||
Net loss | $ | (154.8 | ) | $ | (82.9 | ) | $ | (367.3 | ) | $ | (282.5 | ) | |||
Net loss per common share - basic and diluted | $ | (2.53 | ) | $ | (1.56 | ) | $ | (6.62 | ) | $ | (5.31 | ) | |||
Weighted average common shares outstanding - basic and diluted | 61.1 | 53.2 | 55.5 | 53.2 |
Source:
2024 GlobeNewswire, Inc., source