NIH-funded research R21 grant

Role of Twice-Daily Thoracic Radiotherapy in Limited-Stage SCLC in the Immunotherapy Era

Official title: Defining the Role of Twice-Daily Thoracic Radiotherapy in Limited-Stage SCLC in the Immunotherapy Era: A Trial Integration Approach

Funded at Johns Hopkins University · NIH-11464739 · Data updated 2026-11-12

This project looks at whether giving twice-daily radiotherapy for limited-stage small cell lung cancer still helps patients today who are also getting immunotherapy.

More Immunotherapy research and trials

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionJohns Hopkins University
NIH-funded
Lab location1 site (Baltimore, United States)
Project startAugust 5, 2026
Project endJuly 31, 2028
Funding year2026
Award (this year)$407,868
NIH project number1R21CA318798-01
Project IDNIH-11464739 on NIH RePORTER

Who could benefit from this research

Could help

Adults with limited-stage small cell lung cancer who are considered for thoracic radiotherapy in the immunotherapy era.

Less likely to help

Patients whose treatment plan favors once-daily radiotherapy or who do not receive concurrent/systemic immunotherapy may not benefit from BID scheduling.

What this research studies

Limited-stage small cell lung cancer has unclear best radiotherapy timing and schedule. This study will analyze real-world data from recent trials to see if twice-daily radiotherapy provides a benefit in patients treated with modern immunotherapy and delivery techniques. Researchers will use advanced causal inference and machine-learning methods to compare schedules across contemporary populations and settings. The goal is to understand for whom BID radiotherapy might still be advantageous and under what conditions. The work leverages existing datasets from multiple trials to harmonize results and inform future treatment decisions.

Why it matters

Potential benefit: If successful, the findings could clarify when BID radiotherapy is most beneficial, potentially informing personalized treatment plans for LS-SCLC patients.

How similar studies have gone: Past trials established BID benefits in older cohorts, but recent data suggest the benefit is context-dependent; this study integrates newer era data to reassess.

Where this research is happening

  • Johns Hopkins University
    Baltimore, United States
    Active

Researchers

  • Principal investigator: Hu, Chen — Johns Hopkins University
  • Study coordinator: Hu, Chen

Related research

Other NIH-funded projects on the same topics.

  • Targeting DHX9 to boost viral-like immune response in Small Cell Lung Cancer

    A scientist team is testing whether blocking a protein called DHX9 can make aggressive small cell lung cancer more visible to the immune system and more responsive to immunotherapy.

    NIH research Research Inst of Fox Chase Can Ctr · Philadelphia, United States · NIH-11386506

  • Early response to radiotherapy and immunotherapy in rectal cancer

    A new approach combines short-course radiation, chemotherapy, and an immune therapy antibody to try to shrink rectal cancers before surgery or avoid surgery altogether.

    NIH research Ut Southwestern Medical Center · Dallas, United States · NIH-11381119

  • Blocking DHX9 to wake the immune system against small cell lung cancer

    The team will block a protein called DHX9 in small cell lung cancer to trigger virus-like signals in tumors so they may respond better to immunotherapy.

    NIH research Research Inst of Fox Chase Can Ctr · Philadelphia, United States · NIH-11158849

  • Improving early treatment response in rectal cancer with radiation plus immune therapy

    People with locally advanced rectal cancer will get short-course radiation and chemotherapy, and some will also receive the immune-activating drug sotigalimab to help the tumor shrink and lower the chance it spreads.

    NIH research Ut Southwestern Medical Center · Dallas, United States · NIH-11134641

  • Boosting cancer treatment effects using ATM targeting

    This study is looking at how focusing on a protein called ATM can make cancer treatments like radiation and immunotherapy work better by boosting the immune system's ability to fight tumors, which could lead to improved results for patients.

    NIH research Duke University · Durham, United States · NIH-11026438

  • Using a new approach to enhance immune response in Small Cell Lung Cancer

    This study is exploring a new way to boost immunotherapy for people with Small Cell Lung Cancer by targeting a protein called DHX9, which could help turn less responsive tumors into ones that the immune system can better fight.

    NIH research Research Inst of Fox Chase Can Ctr · Philadelphia, United States · NIH-10981356

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.