Erasca Reports First Quarter 2026 Business Updates and Financial Results
Rhea-AI Summary
Erasca (Nasdaq: ERAS) reported first quarter 2026 results and RAS-franchise progress. ERAS-0015 showed robust preliminary monotherapy responses in KRAS G12X NSCLC and PDAC with generally low-grade AEs, and expansion and combination cohorts began ahead of prior guidance. ERAS-4001 advanced in Phase 1 with US patent protection to June 2043.
Clinical collaborations were signed with Merck to combine ERAS-0015 with KEYTRUDA and with Tango for combination with vopimetostat. Cash, cash equivalents, and marketable securities totaled $408.5 million, including proceeds from a $258.8 million January 2026 offering, funding operations into H2 2028. Q1 2026 net loss was $183.4 million, driven by a $150.0 million in-process R&D charge related to expanding ERAS-0015 license territory to worldwide.
AI-generated analysis. Not financial advice.
Positive
- Cash, cash equivalents, and securities of $408.5 million at March 31, 2026
- Cash runway expected to fund operations into the second half of 2028
- Completed upsized public offering raising approximately $258.8 million gross proceeds
- Worldwide rights secured for ERAS-0015 via expanded Joyo license
- US patent for ERAS-4001 composition of matter effective until June 2043
- ERAS-0015 monotherapy expansion and combo escalation initiated ahead of H2 2026 guidance
- CTCSAs signed with Merck and Tango to broaden ERAS-0015 combination programs
Negative
- Net loss increased to $183.4 million from $31.0 million year over year
- Recorded $150.0 million in-process R&D expense for ERAS-0015 territory expansion
- Quarterly R&D expenses rose to $27.3 million from $26.0 million
- G&A expenses increased to $10.6 million from $9.7 million
News Market Reaction – ERAS
On the day this news was published, ERAS declined 0.57%, reflecting a mild negative market reaction. Argus tracked a peak move of +4.8% during that session. Our momentum scanner triggered 6 alerts that day, indicating moderate trading interest and price volatility. This price movement removed approximately $18M from the company's valuation, bringing the market cap to $3.15B at that time.
Data tracked by StockTitan Argus on the day of publication.
Key Figures
Market Reality Check
Peers on Argus
ERAS fell 2.69% while key biotech peers showed mixed, mostly modest moves (e.g., PRTA -2.45%, OLMA -0.6%, ITOS +0.1%). Momentum scanner flags only one peer up and one down, supporting a stock-specific reaction to this earnings update rather than a broad sector rotation.
Previous Earnings Reports
| Date | Event | Sentiment | Move | Catalyst |
|---|---|---|---|---|
| Mar 12 | Q4/FY 2025 earnings | Positive | -7.0% | Reported Q4/FY 2025 results with $341.8M cash and strong pipeline progress. |
| Nov 12 | Q3 2025 earnings | Positive | -4.2% | Q3 2025 results with ERAS-0015 patent issuance and $362.4M cash runway to H2 2028. |
| Aug 12 | Q2 2025 earnings | Positive | +3.9% | Q2 2025 results with $386.7M cash and reduced net loss versus prior year. |
| May 13 | Q1 2025 earnings | Positive | -4.5% | Q1 2025 results showing $411.1M cash and progress on ERAS-0015/ERAS-4001. |
| Mar 20 | Q4/FY 2024 earnings | Positive | +3.4% | Q4/FY 2024 update with $440.5M cash and advancement of RAS-focused programs. |
Earnings and business update releases have often been framed positively but produced mixed to slightly negative next-day moves, suggesting a tendency for cautious or selling reactions around results.
Over the past year, Erasca’s earnings updates have consistently highlighted progress in its RAS-targeting pipeline and a strong cash position. Prior reports detailed cash balances between $362.4M and $440.5M, expected to fund operations into H2 2028, alongside advancing ERAS-0015 and ERAS-4001 toward and into clinical trials. Despite this constructive narrative, next-day stock reactions to these earnings releases have been mixed, with several negative moves, framing today’s Q1 2026 results within a pattern of cautious market responses.
Historical Comparison
In the past five earnings-related releases, ERAS moved an average of -1.69% the next day, indicating that the modestly negative reaction pattern around fundamentally constructive updates has been common for this name.
Earnings updates have tracked Erasca’s shift from preclinical to clinical development for ERAS-0015 and ERAS-4001, while maintaining a sizeable cash runway into H2 2028 and gradually layering in patents, financing, and now early clinical data.
Regulatory & Risk Context
Erasca has an effective S-3 shelf filed on 2025-08-12 allowing issuance of up to $500,000,000 in securities, including a $200,000,000 at-the-market program under a Sale Agreement with Jefferies LLC, providing flexibility for future equity or debt financing that could be dilutive to existing shareholders.
Market Pulse Summary
This announcement highlights solid Q1 2026 liquidity with $408.5M in cash, cash equivalents, and marketable securities, expected to fund operations into H2 2028, alongside advancing ERAS-0015 and ERAS-4001. The quarter’s $183.4M net loss, including a $150M in-process R&D charge tied to expanding ERAS-0015 rights, is a key tradeoff. Historically, earnings updates have produced mixed price reactions, so investors may track future clinical readouts and any additional use of the $500M shelf registration.
Key Terms
non-small cell lung cancer medical
pancreatic ductal adenocarcinoma medical
pan-RAS molecular glue medical
pan-KRAS inhibitor medical
anti-PD-1 therapy medical
monoclonal antibody medical
pharmacokinetics medical
Phase 1 medical
AI-generated analysis. Not financial advice.
Robust monotherapy efficacy and generally well-tolerated safety results observed during dose escalation for ERAS-0015 in both KRAS G12X NSCLC and PDAC reinforce best-in-class potential across RAS-targeted agents
ERAS-0015 monotherapy expansion and combination dose escalation data expected in H1 2027; ERAS-4001 Phase 1 preliminary monotherapy data expected in H2 2026
Robust balance sheet with cash, cash equivalents, and marketable securities of
SAN DIEGO, May 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 March 31, 2026.
“We continue to execute well across our RAS-targeting franchise, advancing ERAS-0015 clinical development ahead of schedule,” said Jonathan E. Lim, M.D., Erasca’s chairman, CEO, and co-founder. “The best-in-class potential of ERAS-0015 is striking, highlighted by robust responses in patients with KRAS G12X lung or pancreatic cancer, along with favorable safety and tolerability results primarily consisting of low-grade adverse events in our recently reported data. Notably, we believe ERAS-0015 has the potential to become a backbone of combination therapy based in part on the initial panitumumab combination data we shared last month. We continue to advance monotherapy expansion and combination dose escalation cohorts, with data from both anticipated in the first half of 2027.”
Dr. Lim continued, “In parallel, our pan-KRAS inhibitor ERAS-4001 is progressing through Phase 1 dose escalation, with preliminary safety, tolerability, pharmacokinetics, and early efficacy data expected in the second half of 2026. We are encouraged by the differentiated potential of our RAS-targeting franchise to meaningfully transform the treatment landscape for RAS-driven cancers and look forward to sharing further updates in the coming months.”
Research and Development (R&D) Highlights
- Entered into a Clinical Trial Collaboration and Supply Agreement (CTCSA) with Merck: In May 2026, Erasca announced that it had entered into a CTCSA with Merck (known as MSD outside of the United States and Canada) under which ERAS-0015 will be combined with Merck’s anti-PD-1 therapy KEYTRUDA® (pembrolizumab). Pursuant to the CTCSA, Merck will supply pembrolizumab at no cost, and Erasca will be the trial sponsor.
- Robust Preliminary Dose Escalation Monotherapy Data for ERAS-0015: In April 2026, Erasca announced positive preliminary dose escalation data for ERAS-0015 monotherapy including robust response rates in KRAS G12X non-small cell lung cancer (NSCLC) and pancreatic ductal adenocarcinoma (PDAC). The safety and tolerability results were generally favorable, with mostly low-grade adverse events (AEs), limited dose reductions due to treatment-related adverse events (TRAEs), and no discontinuations due to TRAEs. Pharmacokinetic (PK) data showed dose-dependent exposure with no observed plateau, supporting the selection of 24 mg and 32 mg QD (once daily) as recommended doses for expansion. In addition, encouraging early combination data support the potential of ERAS-0015 in combination with panitumumab. (U.S. monotherapy trial AURORAS-1 data cutoff (DCO) 4Apr2026; China monotherapy trial JYP0015M101 DCO 27Feb2026; U.S. panitumumab combination trial DCO 31Mar2026.)
- Initiated Monotherapy Expansion and Combination Dose Escalation: In April 2026, Erasca announced that dose escalation of ERAS-0015 in combination with anti-EGFR monoclonal antibody panitumumab was initiated in the first quarter of 2026 and that the monotherapy expansion cohorts for ERAS-0015 were initiated in the second quarter of 2026. Both of these milestones were completed ahead of the original second half of 2026 guidance.
- Entered into a CTCSA with Tango Therapeutics (Tango): In March 2026, Erasca announced that it had entered into a CTCSA with Tango under which ERAS-0015 will be combined with vopimetostat (Tango’s PRMT5 inhibitor). Pursuant to the CTCSA, Erasca will supply ERAS-0015 at no cost, and Tango will be the trial sponsor.
- U.S. Composition of Matter Patent Issued for ERAS-4001: In February 2026, Erasca announced that the U.S. Patent and Trademark Office issued patent No. 12,552,813, which protects the composition of matter and related compositions for potentially first-in-class pan-KRAS inhibitor ERAS-4001 until June 2043, absent any patent term adjustments or extensions.
Corporate Highlights
- Expanded License Agreement Territory for ERAS-0015: In March 2026, Erasca announced the expansion of its existing licensing agreement with Joyo Pharmatech Co., Ltd. (Joyo) to include China, Hong Kong, and Macau, providing Erasca with worldwide rights to its potential best-in-class pan-RAS molecular glue ERAS-0015.
- Completed Upsized Financing: In January 2026, Erasca completed a successful upsized public offering, raising approximately
$258.8 million in gross proceeds. The transaction, supported by high-quality new and existing healthcare-focused investors, significantly strengthened Erasca’s balance sheet.
Key Upcoming Milestones
- AURORAS-1: Phase 1 trial for ERAS-0015 (pan-RAS molecular glue) in patients with RAS-mutant solid tumors
- Monotherapy expansion data expected in the first half of 2027
- Combination dose escalation data planned for the first half of 2027
- BOREALIS-1: Phase 1 trial for ERAS-4001 (pan-KRAS inhibitor) in patients with KRAS-mutant solid tumors
- Preliminary safety, tolerability, PK, and initial efficacy Phase 1 monotherapy data expected in the second half of 2026
- Initiation of monotherapy expansion cohorts and combination dose escalation cohorts planned for 2027
First Quarter 2026 Financial Results
Cash Position: Cash, cash equivalents, and marketable securities were
Research and Development (R&D) Expenses: R&D expenses were
General and Administrative (G&A) Expenses: G&A expenses were
Net Loss: Net loss was
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 the initiation of certain patient cohorts, and the anticipated timing of data readouts for the AURORAS-1 and BOREALIS-1 trials; the ability of our RAS-targeting franchise to meaningfully transform the treatment landscape for RAS-driven cancers; the potential for ERAS-0015 to be best-in-class or serve as backbone therapy for future combination therapies, and the potential for ERAS-4001 to be first-in-class or best-in-class; statements relating to our intellectual property portfolio, including the future granting of patents and the anticipated periods of time until such patents expire, and the related implications for us; and the sufficiency of our cash, cash equivalents, and marketable securities to fund operations into the second half of 2028. 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: our approach to the discovery and development of product candidates based on our singular focus on shutting down the RAS/MAPK pathway, a novel and unproven approach; 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; this press release references clinical data generated by our third-party licensor, and such data are presented as received and have not been independently verified by us; 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 comprehensive reviews of the data and as more patient data becomes available, including the risk that an unconfirmed partial response to treatment may not ultimately result in a confirmed partial response to treatment after follow-up evaluations; differences exist between trial designs, patient characteristics and other factors for the AURORAS-1 and JYP0015M101 clinical trials, and caution should be exercised in drawing any conclusions from such data across separate studies as such pooling and comparative data is inherently limited and such data may not be directly comparable; our assumptions around which programs may have a higher probability of success may not be accurate, and we may expend our limited resources to pursue a particular product candidate and/or indication and fail to capitalize on product candidates or indications with greater development or commercial potential; potential delays in the commencement, enrollment, data readout, and completion of clinical trials and preclinical studies; our dependence on third parties in connection with manufacturing, research, and preclinical and clinical testing; unexpected adverse side effects or inadequate efficacy of our product candidates that may limit their development, regulatory approval, and/or commercialization, or may result in recalls or product liability claims; unfavorable results from preclinical studies or clinical trials; we may be unable to secure partnerships or other strategic collaborations for naporafenib on acceptable terms or at all; the inability to realize any benefits from our current licenses, acquisitions, and collaborations, and any future licenses, acquisitions, or collaborations, and our ability to fulfill our obligations under such arrangements; regulatory developments in the United States and foreign countries; our ability to obtain and maintain intellectual property protection for our product candidates and maintain our rights under intellectual property licenses, including our ability to successfully defend against allegations raised by, or any future litigation initiated by, Revolution Medicines (RevMed) that ERAS-0015 infringes patents held by RevMed or was derived from RevMed trade secrets; our ability to fund our operating plans with our current cash, cash equivalents, and marketable securities; we may use our capital resources sooner than we expect; and other risks described in our prior filings with the Securities and Exchange Commission (SEC), including under the heading “Risk Factors” in our annual report on Form 10-K for the year ended December 31, 2025, and any subsequent filings with the SEC. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof, and we undertake no obligation to update such statements to reflect events that occur or circumstances that exist after the date hereof. All forward-looking statements are qualified in their entirety by this cautionary statement, which is made under the safe harbor provisions of the Private Securities Litigation Reform Act of 1995.
| Erasca, Inc. Selected Condensed Consolidated Balance Sheet Data (In thousands) (Unaudited) | ||||||||
| March 31, | December 31, | |||||||
| 2026 | 2025 | |||||||
| Balance Sheet Data: | ||||||||
| Cash, cash equivalents, and marketable securities | $ | 408,507 | $ | 341,796 | ||||
| Working capital | 227,120 | 257,728 | ||||||
| Total assets | 461,234 | 396,154 | ||||||
| Accumulated deficit | (1,075,649 | ) | (892,209 | ) | ||||
| Total stockholders’ equity | 393,528 | 325,171 | ||||||
| Erasca, Inc. Condensed Consolidated Statements of Operations and Comprehensive Loss (In thousands, except share and per share amounts) (Unaudited) | ||||||||
| Three Months Ended March 31, | ||||||||
| 2026 | 2025 | |||||||
| Operating expenses: | ||||||||
| Research and development | $ | 27,265 | $ | 25,969 | ||||
| In-process research and development | 150,000 | — | ||||||
| General and administrative | 10,646 | 9,661 | ||||||
| Total operating expenses | 187,911 | 35,630 | ||||||
| Loss from operations | (187,911 | ) | (35,630 | ) | ||||
| Other income (expense) | ||||||||
| Interest income | 4,449 | 4,740 | ||||||
| Other income (expense), net | 22 | (76 | ) | |||||
| Total other income (expense), net | 4,471 | 4,664 | ||||||
| Net loss | $ | (183,440 | ) | $ | (30,966 | ) | ||
| Net loss per share, basic and diluted | $ | (0.60 | ) | $ | (0.11 | ) | ||
| Weighted-average shares of common stock used in computing net loss per share, basic and diluted | 304,317,460 | 283,260,289 | ||||||
| Other comprehensive income (loss): | ||||||||
| Unrealized (loss) gain on marketable securities, net | (1,327 | ) | 223 | |||||
| Comprehensive loss | $ | (184,767 | ) | $ | (30,743 | ) | ||
Contact:
Joyce Allaire
LifeSci Advisors, LLC
jallaire@lifesciadvisors.com
