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Area of Science:

  • Radiation Oncology
  • Infectious Diseases
  • Radiobiology
  • Public Health Policy

Background:

  • Limited efficacy of current COVID-19 treatments necessitates novel therapeutic approaches.
  • Early phase 1 clinical trials of whole-lung low-dose radiation therapy (LDRT) for COVID-19 are advancing to phase 2.
  • The unconventional application of LDRT for viral infections prompted expert discussion.

Purpose of the Study:

  • To convene experts from diverse fields including radiation oncology, virology, and public health.
  • To discuss mechanistic underpinnings, rationale, and evidence for LDRT in COVID-19.
  • To develop a framework for guiding preclinical and clinical studies on LDRT for COVID-19.

Main Methods:

  • Convened a multidisciplinary workshop with experts in radiation oncology, radiobiology, virology, immunology, radiation protection, and public health policy.
  • Reviewed mechanistic underpinnings, rationale, preclinical data, and emerging clinical studies of LDRT for COVID-19.
  • Developed a general framework to guide future clinical and preclinical research.

Main Results:

  • Identified the need for structured guidance due to limited evidence on LDRT safety and efficacy for COVID-19.
  • Facilitated discussion among experts on the potential and challenges of LDRT as a COVID-19 treatment.
  • Established a framework for the responsible design and conduct of future studies.

Conclusions:

  • The workshop provided guidance for clinicians and researchers on conducting LDRT studies for COVID-19.
  • The review aims to inform future research without endorsing or refuting LDRT as a definitive treatment.
  • Further rigorous preclinical and clinical investigation is warranted to establish the safety and efficacy of LDRT.