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Nanobiotix Shares Promising Phase 1 Study Results for Esophageal Cancer Treatment

By Cancerify | October 7, 2025

Nanobiotix Shares Promising Phase 1 Study Results for Esophageal Cancer Treatment

Nanobiotix has unveiled encouraging early data from a Phase 1 study investigating the use of JNJ-1900 (NBTXR3) in treating locally advanced esophageal adenocarcinoma. Conducted at the MD Anderson Cancer Center, the study showed an impressive 85% disease control rate and a 69% objective response rate among 13 patients. This treatment, which combines JNJ-1900 with chemoradiation, demonstrated a strong safety profile and confirmed the feasibility of injection. Key outcomes included six complete responses and three partial responses. Among the six patients who underwent surgery, two achieved a pathological complete response, while four showed a major pathologic response. The recommended dose for Phase 2 was determined to be 33% of the gross tumor volume. The study is ongoing, with plans to recruit 17 more patients to explore both photon and proton chemoradiation combinations. These findings offer new hope for improving treatment strategies for esophageal cancer patients.

Why This Matters in Cancer

Esophageal cancer is a challenging disease with high mortality rates, making new treatment options crucial. The promising results from this study suggest that JNJ-1900 could enhance current treatments by improving local tumor control. This could potentially reduce the need for invasive surgeries, offering a better quality of life for patients.

How the Study Was Done

The Phase 1 study evaluated JNJ-1900 combined with chemoradiation in patients with locally advanced esophageal adenocarcinoma. Researchers focused on assessing the treatment's safety, feasibility, and effectiveness. The study involved 13 patients and measured disease control and response rates.

Where the Study Was Done

This research was conducted at the MD Anderson Cancer Center in Houston, Texas. The findings were presented by Dr. Steven Lin at the 2025 Annual Meeting of the American Society for Radiation Oncology, highlighting the study's significance in the medical community.

The Results

The study demonstrated a high 85% disease control rate and a 69% objective response rate, with six complete responses and three partial responses. Among the patients who underwent surgery, two achieved a pathological complete response, and four showed a major pathologic response. The treatment was well-tolerated, with no significant adverse events related to the injection procedure.

The Impact for Patients

For patients with esophageal cancer, this study offers hope for a less invasive treatment approach. By improving local tumor control, JNJ-1900 could reduce the need for extensive surgeries, leading to better outcomes and quality of life. This advancement represents a potential shift in how esophageal cancer is treated.

What This Could Mean for You

If you or a loved one is facing esophageal cancer, the findings from this study might offer new treatment possibilities. Discussing these options with your healthcare provider could help you explore innovative therapies that might be more effective and less invasive.

What We Know and Don't Know

While the study shows promising results, it involved a small number of patients. Further research is needed to confirm these findings in larger populations. The ongoing recruitment of additional patients will provide more data on the treatment's efficacy and safety.

Main Points

  • JNJ-1900 showed an 85% disease control rate in esophageal cancer patients.
  • The study achieved a 69% objective response rate, with six complete responses.
  • The treatment was well-tolerated, with no significant adverse events.
  • Further recruitment is ongoing to explore additional treatment combinations.

Looking Ahead with Hope

The development of JNJ-1900 as a treatment for esophageal cancer marks a significant step forward in cancer care. By potentially reducing the need for invasive surgeries, it offers new hope for patients and their families. As research continues, there is optimism that this approach could lead to more personalized and effective treatment strategies. The dedication of scientists and healthcare professionals to improving cancer outcomes is evident in this breakthrough. With continued innovation and collaboration, there is a bright future ahead for those affected by esophageal cancer. The promise of less invasive and more accurate treatments brings renewed hope for better patient care. As we look to the future, the insights gained from this research remind us of the power of scientific discovery to transform lives. With ongoing efforts, there is hope for a world where cancer is detected early and treated effectively, offering a brighter path forward for patients everywhere.