Exhibit 99.1
Merus Announces Financial Results for the Fourth Quarter and Full Year 2019 and
Provides Business Update
UTRECHT, The Netherlands and CAMBRIDGE, Mass., March. 12, 2020 (GLOBE NEWSWIRE) — Merus N.V. (Nasdaq: MRUS) (“Merus”, “we”, or “our”), a clinical-stage oncology company developing innovative, full-length multispecific antibodies (Biclonics® and Triclonics™), today announced financial results for the fourth quarter and full year ended December 31, 2019, and provided a business update.
“Significant advancements made in 2019 have set the stage for an exciting and productive year ahead,” said Bill Lundberg, M.D., President, Chief Executive Officer and Principal Financial Officer of Merus. “Merus was founded on strong, sophisticated science and we have now matured into a promising clinical-stage company with compelling early data in our first and most advanced clinical program, zenocutuzumab, for patients with cancers that harbor NRG1 gene fusions. Along with our additional clinical programs, robust platform technology and strong balance sheet, Merus is well-positioned to achieve meaningful results for cancer patients in need.”
Clinical Programs and Business Update
Zeno or zenocutuzumab orMCLA-128 (HER3 x HER2 Biclonics®)
NRG1+ Cancers: Encouraging, early clinical activity, Phase 1/2 eNRGy trial enrollment continues
On October 27, 2019, Merus provided an update on the eNRGy trial and reported encouraging, early clinical activity in several patients with pancreatic ornon-small cell lung cancer harboring NRG1 gene fusions, including tumor shrinkage, symptomatic improvement and durability up to the then most recent assessment.
Merus is currently enrolling patients for the Phase 1/2 eNRGy trial to assess the safety and anti-tumor activity of Zeno monotherapy in NRG1 gene fusion-positive (NRG1+) cancers. The eNRGy trial consists of three cohorts: NRG1+ pancreatic cancer, NRG1+non-small cell lung cancer (NSCLC) and NRG1+ other solid tumors. Details of the eNRGy trial evaluating Zeno in patients with solid tumors that have NRG1 gene fusions, including current trial sites, can be found at www.ClinicalTrials.gov and Merus’ trial website atwww.nrg1.com.
In the fourth quarter, Merus entered into agreements with Caris Life Sciences, Foundation Medicine Inc. and Tempus Labs Inc. to enhance identification of NRG1+ patients, and in conjunction with their physicians, health care providers and institutions, determine the potential suitability of enrollment of these patients in our eNRGy trial and Early Access Program. This is one pillar of our overall strategy to increase awareness of our trial and identification of patients who have the potential to benefit from Zeno.
Merus expects to present data at a medical conference by the end of 2020.
Metastatic Breast Cancer: Phase 2 interim analysis reported
In the Phase 2 metastatic breast cancer trial, in patients enrolled as of August 31, 2019, Merus conducted an unplanned interim efficacy analysis with a datacut-off of October 23, 2019. Enrollment for this study is now completed. Merus expects to present results, including the primary endpoint of clinical benefit rate at 24 weeks, at a medical conference in 2020. With the completion of this trial, Merus will only advance development in metastatic breast cancer with a collaborator and intends to focus efforts on the eNRGy trial going forward.
MCLA-117 (CLEC12A x CD3 Biclonics®): Acute Myeloid Leukemia (AML) – Initial Phase 1 data expected in 1H20
The Phase 1 trial is asingle-arm, open-label, global study to assess the safety, tolerability and anti-tumor activity ofMCLA-117 in up to 90 patients with relapsed/refractory AML. In July 2019, Merus amended theMCLA-117 protocol to allow for the exploration of higher dose cohorts. Preliminary anti-tumor activity was reported in