Company Description
Erasca, Inc. (NASDAQ: ERAS) is a clinical-stage precision oncology company in the pharmaceutical preparation manufacturing industry. According to the company, its name reflects its mission: "to erase cancer." Erasca is singularly focused on discovering, developing, and commercializing therapies for patients with cancers driven by the RAS/MAPK signaling pathway, a key pathway implicated in many solid tumors.
Erasca describes itself as having been co-founded by pioneers in precision oncology and RAS targeting. The company states that it is developing novel therapies and combination regimens designed to comprehensively shut down the RAS/MAPK pathway for the treatment of patients with cancer. Its scientific approach is further guided by a scientific advisory board that Erasca says includes experts in the RAS/MAPK pathway.
Precision oncology focus on RAS/MAPK pathway
The company emphasizes a singular focus on shutting down the RAS/MAPK pathway in RAS-driven and KRAS-driven tumors. Across multiple press releases, Erasca highlights a "RAS-targeting franchise" that it is advancing through preclinical and clinical development. This franchise is centered on small-molecule product candidates that target RAS and KRAS, including both wildtype and mutant forms, with the goal of addressing treatment resistance and high unmet medical need in solid tumors with RAS or KRAS mutations.
Erasca reports that it is a clinical-stage company, meaning its product candidates are being evaluated in human clinical trials. The company notes that its programs are being advanced through early-stage studies, including Phase 1 trials designed to evaluate safety, tolerability, pharmacokinetics, pharmacodynamics, and preliminary antitumor activity.
Key pipeline programs: ERAS-0015 and ERAS-4001
Recent company communications describe two core product candidates in Erasca’s RAS-targeting franchise:
- ERAS-0015: Erasca describes ERAS-0015 as an oral, highly potent pan-RAS "molecular glue" designed to inhibit RAS signaling with a potential best-in-class profile. The company reports that ERAS-0015 is being evaluated in the AURORAS-1 Phase 1 trial in patients with RAS-mutant solid tumors. According to Erasca, early dose escalation data in AURORAS-1 have shown favorable safety and tolerability, linear pharmacokinetics, and confirmed and unconfirmed responses in multiple patients across different tumor types and RAS mutations.
- ERAS-4001: Erasca describes ERAS-4001 as an oral, highly potent, and selective pan-KRAS inhibitor with a potential first-in-class and best-in-class profile. The company states that ERAS-4001 is being evaluated in the BOREALIS-1 Phase 1 trial in patients with KRAS-mutant solid tumors. In preclinical studies, ERAS-4001 is reported to have shown activity against multiple KRAS G12X mutations and KRAS wildtype amplifications, with no activity observed against HRAS or NRAS wildtype proteins.
Both programs are presented by the company as central to its strategy of targeting RAS-driven cancers. Erasca also notes that it has in-licensed these molecules and is building an intellectual property portfolio around them.
Intellectual property and patent protection
Erasca has disclosed that the U.S. Patent and Trademark Office issued a patent titled "Macrocyclic Derivative And Use Thereof" covering the composition of matter for ERAS-0015 and related compositions. The company states that this patent provides intellectual property protection until at least 2043, subject to any patent term adjustments or extensions. Erasca characterizes this patent as a foundational milestone for its ERAS-0015 program and part of a broader set of patent filings intended to support its RAS-targeting franchise.
Clinical development and regulatory milestones
The company has reported several key regulatory and clinical milestones for its pipeline:
- Erasca announced clearance of an investigational new drug (IND) application by the U.S. Food and Drug Administration (FDA) for ERAS-0015 for patients with RAS-mutant solid tumors, enabling the AURORAS-1 Phase 1 trial.
- The company also announced IND clearance for ERAS-4001 for patients with KRAS-mutant solid tumors, enabling the BOREALIS-1 Phase 1 trial.
- Erasca has communicated that dose escalation in AURORAS-1 for ERAS-0015 is advancing and that early clinical activity, including confirmed and unconfirmed partial responses in multiple tumor types with different RAS mutations, has been observed during dose escalation, alongside a safety profile described as favorable by the company.
- For ERAS-4001, Erasca reports that dose escalation in the BOREALIS-1 Phase 1 trial is ongoing and that preclinical data showed tumor regression in multiple KRAS-mutant models, as well as activity against both GTP-bound and GDP-bound KRAS in vitro.
Across its disclosures, Erasca emphasizes that its development programs are at an early stage and that many of its statements about potential therapeutic benefit are forward-looking and subject to risks and uncertainties, as outlined in its cautionary notes and SEC filings.
Financial reporting and public company status
Erasca is listed on the Nasdaq stock market under the ticker symbol ERAS. The company files periodic reports and current reports with the U.S. Securities and Exchange Commission (SEC), including Form 8-K filings that reference quarterly financial results and stockholder meeting outcomes. For example, Erasca has filed Form 8-K reports describing the announcement of financial results for quarters ended June 30 and September 30, 2025, and reporting the results of its annual meeting of stockholders, where directors were elected and the appointment of its independent registered public accounting firm was ratified.
In its press releases, Erasca has referenced its cash, cash equivalents, and marketable securities as supporting its ability to fund operations over a multi-year period, while also noting that these forward-looking statements are subject to business and financial risks described in its SEC filings.
Engagement with the healthcare investment community
Erasca regularly participates in healthcare and investor conferences. The company has announced presentations and fireside chats at events such as the J.P. Morgan Healthcare Conference, the Evercore Healthcare Conference, and conferences hosted by Guggenheim, Stifel, Jefferies, Goldman Sachs, and Morgan Stanley. These events provide venues for Erasca’s management to discuss its RAS/MAPK-focused strategy, pipeline progress, and business updates with investors and other stakeholders.
Risk considerations highlighted by the company
In multiple communications, Erasca includes cautionary notes regarding forward-looking statements. The company points to risks such as:
- The novel and unproven nature of its singular focus on shutting down the RAS/MAPK pathway.
- The possibility that results from preclinical studies or early clinical trials may not predict future outcomes.
- Potential delays in clinical trial commencement, enrollment, data readout, or completion.
- Dependence on third parties for manufacturing, research, and clinical testing.
- Regulatory developments in the United States and other countries.
- Its ability to obtain and maintain intellectual property protection and to realize benefits from licenses, acquisitions, and collaborations.
These risk factors are further detailed in Erasca’s annual report on Form 10-K and other SEC filings, which the company references in its press releases.
Position within pharmaceutical preparation manufacturing
Within the broader manufacturing sector, Erasca operates in pharmaceutical preparation manufacturing with a specific emphasis on precision oncology. Its activities, as described in company materials, center on research and development of targeted small-molecule therapies rather than on large-scale commercial manufacturing. As a clinical-stage company, Erasca’s primary focus is on advancing its product candidates through clinical development and building the scientific and intellectual property foundations for potential future commercialization.