Updated ERAS-0015 data in U.S. trial highlighted compelling monotherapy efficacy in 2L+ KRAS G12X PDAC and continued favorable tolerability, as well as further advancement of panitumumab CRC combination
ERAS-0015 program advancing toward three potentially registration-enabling trials in pancreatic and lung cancers
Additional ERAS-0015 monotherapy and combination data expected in H1 2027; ERAS-4001 Phase 1 preliminary monotherapy data expected in H2 2026
Cash, cash equivalents, and marketable securities of $384 million as of June 30, 2026; further strengthened balance sheet with upsized public offering of $632 million in July
SAN DIEGO, Aug. 11, 2026 (GLOBE NEWSWIRE) -- Erasca, Inc. (Nasdaq: ERAS), a clinical-stage precision oncology company singularly focused on discovering, developing, and commercializing therapies for patients with RAS/MAPK pathway-driven cancers, today provided business updates and reported financial results for the fiscal quarter ended June 30, 2026.
"Our mission is to deliver novel precision therapies that address unmet needs across a broad range of RAS-driven cancers, and we believe the encouraging early findings for ERAS-0015 represent an important step toward realizing that goal," said Jonathan E. Lim, M.D., Erasca's chairman, CEO, and co-founder. "Updated clinical data from our U.S. trial further bolster our excitement for advancing ERAS-0015, with compelling monotherapy activity in 2L+ KRAS G12X pancreatic cancer, previously disclosed encouraging data in 2L+ KRAS G12X lung cancer, sustained tolerability with longer follow-up, and promising combination potential. Our recent financing should position us to accelerate ERAS-0015 toward three potentially registration-enabling trials while maintaining momentum across our broader pipeline, including the upcoming ERAS-4001 clinical data readout expected later this year. We are entering our next phase of growth with significant momentum across our RAS-targeting franchise and an exciting path toward multiple pipeline catalysts."
Research and Development (R&D) Highlights
-- Updated Clinical Data for ERAS-0015: In July 2026, Erasca announced
updated preliminary data from the ongoing AURORAS-1 Phase 1 trial in the
U.S., building on the Company's April 2026 announcement with additional
patients and longer follow-up. At the recommended dose for expansion
(RDE) of 32 mg once daily (QD), ERAS-0015 demonstrated encouraging
monotherapy activity in second-line or later (2L+) KRAS G12X pancreatic
ductal adenocarcinoma (PDAC), with a 57% uORR8wk and ongoing treatment
across all responding patients and most enrolled patients.1,2 ERAS-0015
continued to demonstrate favorable tolerability, including mostly
low-grade treatment-related adverse events, no dose-limiting toxicities
(DLTs), no treatment-related discontinuations, and a median relative dose
intensity of 100% at both the 24 mg QD and 32 mg QD RDEs.1 The Company
also cleared the first dose escalation cohort of ERAS-0015 (16 mg) in
combination with the approved dose of panitumumab after demonstrating no
DLTs. Backfill enrollment is ongoing in the 16 mg combination cohort,
with continued dose escalation in the 24 mg combination cohort.3
-- Registration-Enabling Plans for ERAS-0015: In July 2026, Erasca announced
plans to accelerate the clinical development of ERAS-0015 in high-value
KRAS-mutant indications, including potentially registration-enabling
development in pancreatic and lung cancers.1 Data cutoff $(DCO)$ May 25,
20262 The uORR8wk is the overall response rate $(ORR)$ (confirmed and
unconfirmed responses) for patients who received first dose of ERAS-0015
at least 8 weeks prior to the May 25, 2026 DCO3 DCO July 6, 2026
Corporate Highlights
-- Completed Upsized Financing: In July 2026, Erasca completed a successful
upsized public offering, raising approximately $632.5 million in gross
proceeds. The transaction, supported by high-quality new and existing
healthcare-focused investors, along with the Company's January 2026
upsized public offering (approximately $258.8 million in gross proceeds),
significantly strengthened Erasca's balance sheet.
-- Strengthened Financial and Clinical Leadership: In May 2026, Erasca
promoted Alison Milhous to senior vice president of accounting and to the
Company's leadership team. In August 2026, Erasca appointed Charles Fuchs,
M.D., M.P.H., as president of research and development, and David Chonzi,
M.D., as senior vice president of global pharmacovigilance, both of whom
joined the Company's leadership team.
Key Upcoming Milestones
AURORAS-1 to -3: Trials for ERAS-0015 (potential best-in-class pan-RAS molecular glue)
-- Phase 1 monotherapy expansion data expected in the first half of 2027
-- Phase 1 combination dose escalation data, including panitumumab
combination, expected in the first half of 2027
-- Potentially registration-enabling trial in 2L+ NSCLC expected to initiate
in the first half of 2027
-- Phase 3 pivotal trial in 1L PDAC expected to initiate in 2027
-- Phase 3 pivotal trial in RASm NSCLC expected to initiate in the second
half of 2027 to the first half of 2028
BOREALIS-1: Phase 1 trial for ERAS-4001 (potential first-in-class pan-KRAS inhibitor)
-- Preliminary Phase 1 monotherapy data expected in the second half of 2026
-- Initiation of monotherapy expansion cohorts and combination dose
escalation cohorts planned for 2027
Second Quarter 2026 Financial Results
Cash Position: Cash, cash equivalents, and marketable securities were $384.3 million as of June 30, 2026, compared to $341.8 million as of December 31, 2025. Erasca expects its current cash, cash equivalents, and marketable securities (inclusive of the net proceeds received from the July 2026 underwritten offering) will be sufficient to fund the Key Upcoming Milestones set forth above in this press release.
Research and Development (R&D) Expenses: R&D expenses were $35.9 million for the quarter ended June 30, 2026, compared to $21.2 million for the quarter ended June 30, 2025. The increase was primarily driven by increases in expenses incurred in connection with clinical trials, preclinical studies, discovery activities, outsourced services, consulting fees, and personnel costs, including stock-based compensation expense. Erasca also recorded $7.5 million of in-process R&D expense during the quarter ended June 30, 2025 related to the achievement of milestones under Erasca's ERAS-0015 license agreement.
General and Administrative (G&A) Expenses: G&A expenses were $11.7 million for the quarter ended June 30, 2026, compared to $9.5 million for the quarter ended June 30, 2025. The increase was primarily driven by increases in personnel costs, including stock-based compensation expense, and legal costs.
Net Loss: Net loss was $44.1 million, or $(0.14) per basic and diluted share, for the quarter ended June 30, 2026, compared to $33.9 million, or $(0.12) per basic and diluted share, for the quarter ended June 30, 2025.
About Erasca
At Erasca, our name is our mission: To erase cancer. We are a clinical-stage precision oncology company singularly focused on discovering, developing, and commercializing therapies for patients with RAS/MAPK pathway-driven cancers. Our company was co-founded by leading pioneers in precision oncology and RAS targeting to create novel therapies and combination regimens designed to comprehensively shut down the RAS/MAPK pathway for the treatment of patients with cancer. We believe our team's capabilities and experience, further guided by our scientific advisory board which includes the world's leading experts in the RAS/MAPK pathway, uniquely position us to achieve our bold mission of erasing cancer.
Cautionary Note Regarding Forward-Looking Statements
Erasca cautions you that statements contained in this press release regarding matters that are not historical facts are forward-looking statements. The forward-looking statements are based on our current beliefs and expectations and include, but are not limited to: our expectations regarding the potential therapeutic benefits for each of our product candidates, including ERAS-0015 and ERAS-4001; the planned advancement of our development pipeline, including the anticipated timing of data readouts for the AURORAS-1 and BOREALIS-1 trials; our expectations related to the initiation of our clinical trials and patient cohorts; our belief that our recent financing positions us to accelerate ERAS-0015 toward three potentially registration-enabling trials while maintaining momentum across our broader pipeline; our belief that we have significant momentum across our RAS-targeting franchise as we progress on our path to multiple pipeline catalysts; our expectations that our planned clinical trials will serve as registrational-enabling studies; characterizations of the clinical profile of ERAS-0015; the potential for ERAS-0015 to be used in combination therapies; the potential for ERAS-0015 to be best-in-class; the potential for ERAS-4001 to be first-in-class or best-in-class; and the sufficiency of our cash, cash equivalents, and marketable securities to fund the Key Upcoming Milestones set forth in this press release. Actual results may differ from those set forth in this press release due to the risks and uncertainties inherent in our business, including, without limitation: the timing of our clinical data readouts, including for the AURORAS-1 and BOREALIS-1 trials, may be delayed; our product candidates, including ERAS-0015 and ERAS-4001, may not demonstrate therapeutic benefits that we expect; interim, topline and preliminary results of a clinical trial are not necessarily indicative of final results and one or more of the clinical outcomes may materially change as patient enrollment continues, following more
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