On May 17, 2026 NANOBIOTIX (Euronext: NANO – NASDAQ: NBTX – the "Company"), a late-clinical stage biotechnology company pioneering nanotherapeutic approaches to expand treatment possibilities for patients with cancer and other major diseases, reported the presentation of Part 1 data from the CONVERGE study, a Johnson & Johnson-sponsored randomized Phase 2 clinical trial evaluating potential first-in-class Nanoradioenhancer JNJ-1900 (NBTXR3) for patients with stage 3 inoperable non-small cell lung cancer ("NSCLC"), at the 2026 European Society for Radiotherapy and Oncology Annual Meeting (ESTRO 2026).
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PRESENTATION #116: Radiographic Response in Patients with Stage III Unresectable Non-Small Cell Lung Cancer Treated with an Intratumoral Radioenhancer (JNJ-90301900)
Jeffrey Bradley,1 Benjamin T. Cooper,2 Sushma Patel,3 David DiBardino,4 Michael Pritchett,5 Kevin C. Ma,4 Isaac Laniado,6 Melina E. Marmarelis,7 Matthew Scarlotta,8 Joshua K. Sabari,9 Yi -Wen Ma,10 Tori Stromp,10 Yina Kuang,10 Balaji Laxmanan,10 Kiran Devisetty,10 Steven Feigenberg1
Study Conclusions
Early results suggest that intratumoral/intranodal injection of JNJ-1900 (NBTXR3) is feasible and can be performed safely in patients with stage III unresectable NSCLC
Initial efficacy responses observed in 7 patients following the full treatment regimen of concurrent chemoradiotherapy, JNJ-1900 (NBTXR3), and consolidation with durvalumab are promising:
Overall response rate ("ORR") = 85.7% (6/7 patients)
Complete response rate ("CRR") = 57.1% (4/7 patients)
With the current standard of care, concurrent chemoradiation therapy (cCRT) ± durvalumab, depth of response remains limited in Stage 3 Inoperable NSCLC with very low rates of complete response (<5%) *
Disease control rate ("DCR") = 100.0% (7/7 patients)
Absence of progressive disease and deepening response over time suggests potential for long-term durability
1Radiation Oncology, University of Pennsylvania, Philadelphia, USA; 2Radiation Oncology, NYU Langone Health, New York, USA; 3Radiation Oncology, FirstHealth of the Carolinas, Pinehurst, USA; 4University of Pennsylvania, Philadelphia, USA; 5Interventional Pulmonology, FirstHealth of the Carolinas, Pinehurst, USA; 6Interventional Pulmonology, NYU Langone Health, New York, USA; 7Medical Oncology, University of Pennsylvania, Philadelphia, USA; 8Medical Oncology, FirstHealth of the Carolinas, Pinehurst, USA; 9Medical Oncology, NYU Langone Health, New York, USA; 10Johnson & Johnson, New Brunswick, NJ, USA
* Antonia SJ, et al. N Engl J Med. 2017.
About JNJ-1900 (NBTXR3)
JNJ-1900 (NBTXR3) is a novel, potentially first-in-class oncology product composed of functionalized hafnium oxide nanoparticles that is administered via one-time intratumoral injection and activated by radiotherapy. Its proof-of-concept was achieved in soft tissue sarcomas through a successful randomized Phase 2/3 study in 2018. The product candidate’s mechanism of action (MoA) is designed to induce significant tumor cell death in the injected tumor when activated by radiotherapy, subsequently triggering adaptive immune response and long-term anti-cancer memory. Given the physical MoA, Nanobiotix believes that JNJ-1900 (NBTXR3) could be scalable across any solid tumor that can be treated with radiotherapy and across any therapeutic combination, particularly immune checkpoint inhibitors.
Radiotherapy-activated JNJ-1900 (NBTXR3) is being evaluated across multiple solid tumor indications as a single agent or combination therapy. The program is led by NANORAY-312—a global, randomized Phase 3 study in locally advanced head and neck squamous cell cancers. In February 2020, the United States Food and Drug Administration granted regulatory Fast Track designation for the investigation of JNJ-1900 (NBTXR3) activated by radiation therapy, with or without cetuximab, for the treatment of patients with locally advanced HNSCC who are not eligible for platinum-based chemotherapy—the same population being evaluated in the Phase 3 study.
Given the Company’s focus areas, and balanced against the scalable potential of NBTXR3, Nanobiotix has engaged in a collaboration strategy to expand development of the product candidate in parallel with its priority development pathways. Pursuant to this strategy, in 2019 Nanobiotix entered into a broad, comprehensive clinical research collaboration with The University of Texas MD Anderson Cancer Center to sponsor several Phase 1 and Phase 2 studies evaluating JNJ-1900 (NBTXR3) across tumor types and therapeutic combinations. In 2023, Nanobiotix announced a license agreement for the global co-development and commercialization of JNJ-1900 (NBTXR3) with Janssen Pharmaceutica NV, a Johnson & Johnson company.
(Press release, Nanobiotix, MAY 17, 2026, View Source [SID1234665815])