APN-497444

BOTHELL, Wash.--(BUSINESS WIRE)-- Immunome, Inc. (Nasdaq: IMNM), a biotechnology company focused on developing first-in-class and best-in-class targeted cancer therapies, today announced the completion of its purchase of antibodies and related assets from Atreca, Inc. Under the terms of the agreement, Immunome paid Atreca $5.5 million upfront, and Atreca will be eligible for up to $7.0 million in clinical development milestones. Immunome received the rights to 28 antibodies as well as certain materials. “Novel and underexplored targets are central to Immunome’s pipeline strategy,” said Jack Higgins, PhD, Chief Scientific Officer. “The antibodies acquired from Atreca add to our ADC toolbox, complementing our existing discovery programs pursuing undisclosed targets.” Added Clay Siegall, PhD, President and Chief Executive Officer, “Immunome intends to further expand its ADC portfolio through cost-effective business development, rigorous discovery efforts, and disciplined development. We believe this purchase accelerates our efforts to bring innovative therapies to cancer patients.” About Immunome, Inc. Immunome is a biotechnology company dedicated to developing first-in-class and best-in-class targeted cancer therapies. Our portfolio pursues each target with a modality appropriate to its biology, including small molecules, ADCs, RLTs and immunotherapies. We believe that pursuing underexplored targets with appropriate drug modalities leads to transformative therapies. Our proprietary memory B cell hybridoma technology allows for the rapid screening and functional characterization of novel antibodies and targets. For more information, visit or follow us on Twitter and LinkedIn. Cautionary Statement Regarding Forward-Looking Statements Certain statements contained in this communication regarding matters that are not historical facts, are forward-looking statements within the meaning of Section 21E of the Securities and Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995 (the “PSLRA”). We use words such as “will,” “intends,” “believe,” and similar expressions to identify these forward-looking statements that are intended to be covered by the safe-harbor provisions of the PSLRA. These forward-looking statements include, but are not limited to, statements regarding Immunome’s expectation to expand its portfolio and toolbox, enhance its development capabilities and drive strategic business initiatives; Immunome’s ability to integrate the assets acquired from Atreca; Immunome’s expectation about management’s performance; and other statements regarding management’s intentions, plans, beliefs, expectations or forecasts for the future. No forward-looking statement can be guaranteed, and actual results may differ materially from those projected. Such forward-looking statements are based on Immunome’s expectations and involve risks and uncertainties; consequently, actual results may differ materially from those expressed or implied in the statements due to a number of factors. These factors include, but are not limited to, the risk that Immunome will not be able to realize the benefits of its strategic transactions, Immunome’s ability to grow and successfully execute on its business plan, including the development and commercialization of its pipeline and the expansion of its toolbox; changes in the applicable laws or regulations; the possibility that Immunome may be adversely affected by other economic, market, business, and/or competitive factors; the risk that regulatory approvals for Immunome’s programs and product candidates are not obtained, are delayed or are subject to unanticipated conditions; the risk that pre-clinical data may not be predictive of clinical data; the risk that interim results of a clinical trial do not necessarily predict final results; potential delays in the commencement, enrollment and completion of clinical trials and the reporting of data therefrom; the risk that our product and development candidates fail to achieve their intended endpoints; the complexity of numerous regulatory and legal requirements that Immunome needs to comply with to operate its business; the reliance on Immunome’s management; the prior experience and successes of the Immunome’s management team not being indicative of any future success; uncertainties related to Immunome’s capital requirements and Immunome’s expected cash runway; the failure to obtain, adequately protect, maintain or enforce Immunome’s intellectual property rights; and other risks and uncertainties indicated from time to time described in Immunome’s Annual Report on Form 10-K for the year ended December 31, 2023, filed with the SEC on March 28, 2024, in Immunome’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2024, filed with the SEC on May 14, 2024, and in Immunome’s other filings with the SEC. Immunome cautions that the foregoing list of factors is not exclusive and not to place undue reliance upon any forward-looking statements which speak only as of the date made. Moreover, Immunome operates in a very competitive and rapidly changing environment. New risks emerge from time to time. Except as required by law, Immunome does not undertake any obligation to update publicly any forward-looking statements for any reason after the date of this press release to conform these statements to actual results or to changes in their expectations.

Should AL102 live up to its hype, Ayala Pharmaceuticals is in line for development and commercial milestones totaling $37.5 million. Barely two months after SpringWorks Therapeutics secured the first-ever FDA approval for a drug to treat ultra-rare desmoid tumors, Immunome has bagged the rights to a phase 3 therapy it claims could be more effective. The Pennsylvania-based biotech is paying $20 million in upfront cash and $30 million in common stock to Ayala Pharmaceuticals to secure the phase 3 oral gamma secretase inhibitor AL102. The deal also covers an injectable gamma secretase inhibitor called AL101 that’s in a phase 2 trial for adenoid cystic carcinoma. Should AL102 live up to the hype, Ayala is in line for development and commercial milestones totaling $37.5 million. In this morning’s press release, Immunome claimed that “data from clinical trials have shown AL102 may be more effective in treating desmoid tumors” than SpringWorks’ own gamma secretase inhibitor Ogsiveo, which secured FDA approval at the end of November 2023.  Desmoid tumors, which are diagnosed in around 1,650 people in the U.S. each year, are marked by noncancerous soft tissue growths that often cause severe pain and disfigurement. To secure the approval of Ogsiveo, SpringWorks drew on phase 3 data that showed a confirmed objective response rate of 41% for patients taking the drug compared to 8% for those who received placebo. There have been no head-to-head studies of the two drugs. In today’s release, Immunome claimed that among evaluable patients in a phase 2 trial who received a 1.2-mg dose of AL102, the objective response rate so far has been 75%. This is the same dose being tested in Ayala’s ongoing phase 3 study. “We are especially optimistic about the rapidity and depth of the tumor responses observed in the phase 2 portion of RINGSIDE,” Immunome’s CEO Clay Siegall, Ph.D., said in the release. “AL102 will complement our existing portfolio of targeted cancer agents that are approaching phase 1 trials.” “As we complete the work required to advance AL102 to NDA submission, our goal is to bring clinical benefit to an underserved patient population while generating substantial value for stockholders,” Siegall added. “We also plan to investigate other populations of cancer patients that could benefit from treatment with AL102.” Immunome gave itself a late Christmas present in the form of a slate of antibodies and related assets from Atreca, which it bought for $5.5 million upfront. The December 2023 deal included APN-497444, which was Atreca’s lead antibody-drug conjugate program in early development for gastrointestinal cancers.