Merus Announces Two Clinical Abstracts on Zenocutuzumab (Zeno) in NRG1-fusion (NRG1+) non-small cell lung cancer (NSCLC) and Pancreatic Cancer (PDAC) Selected for Presentation at the ESMO Congress 2023

UTRECHT, The Netherlands and CAMBRIDGE, Mass., July 28, 2023 (GLOBE NEWSWIRE) -- (Nasdaq: MRUS) (Merus, the Company, we, or our), a clinical-stage oncology company developing innovative, full-length multispecific antibodies (Biclonics® and Triclonics®), today announced two abstracts were selected for presentation at the European Society for Medical Oncology Congress (ESMO) 2023.

The presentations will highlight updated interim clinical data for the targeted bispecific antibody, zenocutuzumab (Zeno), with an abstract and oral presentation concerning NRG1 fusion positive (NRG1+) non-small cell lung cancer (NSCLC) and an abstract presentation concerning NRG1+ pancreatic ductal adenocarcinoma (PDAC). The abstracts will be presented at the ESMO Congress 2023 taking place in Madrid, Spain October 20-24, 2023.

Merus is currently enrolling patients into the phase 1/2 eNRGy trial to assess the safety and anti-tumor activity of Zeno monotherapy in NRG1+ cancer.

Title: Durable efficacy of zenocutuzumab, a HER2 x HER3 bispecific antibody, in advanced NRG1 fusion-positive (NRG1+) non-small cell lung cancer (NSCLC)

Speaker: Alison Schram

Mini Oral 1315MO

Lecture Time 9:35-9:40 CEST

Saturday, October 21

Title: Durable efficacy of zenocutuzumab, a HER2 x HER3 bispecific antibody, in advanced NRG1 fusion-positive (NRG1+) pancreatic ductal adenocarcinoma (PDAC)

Poster Session 1618P

Sunday, October 22

The full abstracts will be published online via the ESMO website at 00:05 CEST on Monday, October 16. They will be available concurrently on the Merus website.

About the eNRGy Clinical Trial

Merus is currently enrolling patients in the phase 1/2 eNRGy trial to assess the safety and anti-tumor activity of Zeno monotherapy in NRG1+ cancer. The eNRGy trial consists of three cohorts: NRG1+ pancreatic cancer; NRG1+ non-small cell lung cancer; and other NRG1+ cancer. Further details, including current trial sites, can be found at  and Merus’ trial website at  or by calling 1-833-NRG-1234.

About Zeno

Zeno is an antibody-dependent cell-mediated cytotoxicity (ADCC)-enhanced Biclonics^® that utilizes the Merus Dock & Block^® mechanism to inhibit the neuregulin/HER3 tumor-signaling pathway in solid tumors with NRG1 fusions (NRG1+ cancer). Through its unique mechanism of binding to HER2 and potently blocking the interaction of HER3 with its ligand NRG1 or NRG1-fusion proteins, Zeno has the potential to be particularly effective against NRG1+ cancer. In preclinical studies, Zeno potently inhibits HER2/HER3 heterodimer formation thereby inhibiting oncogenic signaling pathways, leading to inhibition of tumor cell proliferation, and blocking tumor cell survival.

About Merus N.V.

 is a clinical-stage oncology company developing innovative full-length human bispecific and trispecific antibody therapeutics, referred to as . Multiclonics^® are manufactured using industry standard processes and have been observed in preclinical and clinical studies to have several of the same features of conventional human monoclonal antibodies, such as long half-life and low immunogenicity. For additional information, please visit ,  and .

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. All statements contained in this press release that do not relate to matters of historical fact should be considered forward-looking statements, including without limitation statements regarding the clinical development of zenocutuzumab, future clinical trial results or interim data, clinical activity and safety profile of zenocutuzumab in the on-going eNRGy trial and planned abstracts and presentation. These forward-looking statements are based on management’s current expectations. These statements are neither promises nor guarantees, but involve known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements, including, but not limited to, the following: our need for additional funding, which may not be available and which may require us to restrict our operations or require us to relinquish rights to our technologies or Biclonics®, Triclonics® and multispecific antibody candidates; potential delays in regulatory approval, which would impact our ability to commercialize our product candidates and affect our ability to generate revenue; the lengthy and expensive process of clinical drug development, which has an uncertain outcome; the unpredictable nature of our early stage development efforts for marketable drugs; potential delays in enrollment of patients, which could affect the receipt of necessary regulatory approvals; our reliance on third parties to conduct our clinical trials and the potential for those third parties to not perform satisfactorily; impacts of the COVID-19 pandemic; we may not identify suitable Biclonics® or bispecific antibody candidates under our collaborations or our collaborators may fail to perform adequately under our collaborations; our reliance on third parties to manufacture our product candidates, which may delay, prevent or impair our development and commercialization efforts; protection of our proprietary technology; our patents may be found invalid, unenforceable, circumvented by competitors and our patent applications may be found not to comply with the rules and regulations of patentability; we may fail to prevail in potential lawsuits for infringement of third-party intellectual property; and our registered or unregistered trademarks or trade names may be challenged, infringed, circumvented or declared generic or determined to be infringing on other marks.

These and other important factors discussed under the caption “Risk Factors” in our Annual Report on Form 10-Q for the period ended March 31, 2023, filed with the Securities and Exchange Commission, or SEC, on May 4, 2023, and our other reports filed with the SEC, could cause actual results to differ materially from those indicated by the forward-looking statements made in this press release. Any such forward-looking statements represent management’s estimates as of the date of this press release. While we may elect to update such forward-looking statements at some point in the future, we disclaim any obligation to do so, even if subsequent events cause our views to change, except as required under applicable law. These forward-looking statements should not be relied upon as representing our views as of any date subsequent to the date of this press release.

Multiclonics^®, Biclonics^® and Triclonics^® are registered trademarks of Merus N.V.