← Back to News
Innovative Blood Test Trial Aims to Revolutionize Early Detection of Breast Cancer
October 18, 2026
Based on reporting from Newswise: MedNews.
Original source published: October 15, 2026

Photo by Tima Miroshnichenko on Pexels
Recent developments in cancer detection have taken a significant step forward with a new clinical trial launched by researchers at Keck Medicine of USC. This trial is investigating the potential of a blood test to identify breast cancer at earlier stages compared to traditional mammograms. With over 300,000 women diagnosed with breast cancer annually in the U.S., the ability to detect the disease early can dramatically improve treatment outcomes and patient survival rates.
The Promise of Liquid Biopsy Technology
The clinical trial focuses on a novel liquid biopsy method that aims to supplement mammography. While mammograms remain the standard for breast cancer screening, they often lead to additional imaging or biopsies when abnormalities are detected, which can create anxiety for patients and delay treatment if cancer is confirmed. The new blood test, developed at the USC Michelson Center Convergent Science Institute in Cancer, seeks to provide a more efficient and less invasive means of identifying cancerous changes. This blood test works by detecting rare cancer-associated cells and large extracellular vesicles (L-EVs)—tiny particles released by cancer cells that can circulate in the bloodstream early in the disease process. The hope is that by identifying these markers, doctors can gain deeper insights into the presence of cancer much earlier than current methods allow.Benefits for Patients and Healthcare Providers
If successful, this blood test could offer a vital tool for women, particularly those who experience discomfort with mammograms or for whom mammograms are less effective. The test's ability to detect cancer earlier could enable timely interventions, potentially leading to better prognoses. Furthermore, it could enhance screening access for underserved populations, including those in remote areas with limited healthcare facilities. Anastasia Martynova, MD, the principal investigator of the trial, expressed optimism about the test's potential to provide crucial information during early cancer stages, where treatment is often more effective. Co-investigator Amanda M. Woodworth, MD, emphasized the test's potential to expand screening options for women who have undergone mastectomies, where mammograms may no longer be viable.Understanding the Technology Behind the Test
Liquid biopsies have gained traction in oncology, primarily for monitoring patients post-diagnosis. However, most existing tests focus on circulating tumor DNA, which can be challenging to detect in the early stages of cancer. The innovative approach of this trial, which includes the detection of L-EVs alongside rare cancer cells, represents a significant advancement in liquid biopsy technology. These L-EVs may not only signal the presence of cancer but also provide insights into how cancer cells interact with their environment, which is crucial for understanding tumor behavior and treatment response. This multifaceted approach could pave the way for future applications in detecting other solid tumors, such as lung and colon cancer, leveraging the same technology.The Role of AI in Cancer Detection and Research
Artificial intelligence (AI) is playing an increasingly pivotal role in oncology, particularly in enhancing diagnostic accuracy and personalizing treatment plans. In the context of this blood test, AI algorithms could potentially analyze the complex data generated from liquid biopsies, helping to identify patterns and predict outcomes more effectively than traditional methods. AI-driven tools are already transforming how researchers and clinicians approach cancer detection, making it possible to process vast amounts of data quickly and accurately. As this blood test progresses through trials, the integration of AI could further refine its efficacy, providing an additional layer of support in early cancer detection efforts.Looking Ahead: The Future of Breast Cancer Screening
The ongoing clinical trial at Keck Medicine of USC represents a crucial step toward improving breast cancer detection methods. If the initial results are promising, plans for a larger phase 2 trial will follow, potentially leading to a new standard in breast cancer screening. Ultimately, the success of this blood test could not only change the landscape of breast cancer detection but also inspire further innovations in precision oncology. With continued research and development, we may see a future where early detection of various cancers becomes more accessible and less invasive, significantly improving patient outcomes. In conclusion, the exploration of this blood test is a promising development for cancer patients and advocates alike. It highlights the importance of ongoing research in cancer detection and treatment innovation. For those interested in following the latest advancements in AI and cancer research, resources like CureCancerWithAi.com can provide valuable insights and updates.Readers who want more plain-language context on AI and oncology can also explore the Cure Cancer With AI blog and learn more about the project.
This article is for educational purposes only and does not constitute medical advice. Consult your healthcare provider for personalized medical guidance.
