Haystack Oncology and Rutgers Cancer Institute Collaborate in a Clinical Study to Examine Haystack MRD as a Guide for Post-Surgical Treatment for Lung Cancer

Core Viewpoint - Haystack Oncology, a subsidiary of Quest Diagnostics, has initiated a research collaboration with Rutgers Cancer Institute to evaluate the Haystack MRD test for optimizing postoperative therapy in patients with stage II/III non-small cell lung cancer (NSCLC) [1][2]. Group 1: Research Collaboration and Study Details - The collaboration aims to assess the use of the Haystack MRD test, a highly sensitive circulating tumor DNA (ctDNA) test, to guide postoperative therapy decisions [1]. - The MRD-PORT Trial (NCT06979661) is a prospective phase II study that will determine if the presence of residual tumor DNA after surgery can inform the use of radiation and systemic therapies [1][2]. - Patients testing positive for ctDNA post-surgery will be considered for adjuvant radiation and systemic therapies based on tumor biology and clinical context [2]. Group 2: Importance of ctDNA Testing - ctDNA MRD tests are increasingly recognized for their potential to identify residual or recurring cancer in patients with solid tumors [3]. - A study published in NEJM in April 2025 indicated that ctDNA testing using Haystack MRD identified clinical complete response at a median of 1.4 months, significantly faster than imaging tests which took over 6 months [3]. - A survey revealed that 96% of oncologists believe MRD testing can detect cancer recurrence earlier than current methods [3]. Group 3: Context of Lung Cancer - Lung cancer remains the leading cause of cancer-related deaths in the U.S., with high recurrence rates in stage II and III NSCLC patients [4]. - Studies indicate that patients who test positive for ctDNA after surgery experience significantly worse progression-free survival and overall survival compared to those who test negative [4]. Group 4: Company Background - Haystack Oncology has over 20 years of collaboration in advancing liquid biopsy technologies and developed the Haystack MRD test, which detects ultralow levels of ctDNA [5][6]. - The test is available for commercial use as a lab-developed test (LDT) by Quest Diagnostics and is also utilized in clinical trials as an investigational device [6].