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When in the treatment of OA do you think it is optimal to offer LDRT?

Many guidelines continue to list LDRT as a non-primary/secondary intervention; do you wait to offer LDRT until after trial of conventional primary interventions such as anti-inflammatories, CSI, etc? Is there optimal timing for incorporation of LDRT? This question is part of our collaboration with ASTRO 2025 to highlight impactful trial data from this year's meeting. This question is inspired by the Clinical Trials Session Presentation "Clinical Effectiveness of Single Course Low-Dose Radiation Therapy in Knee Osteoarthritis: Short-term Results from the Randomized, Sham-Controlled Trial" by Dr. Byoung Hyuck Kim.
1 Answer
Mednet Member
Mednet Member
Radiation Oncology · Inova Schar Cancer Institute
Answered on

Evidence reality check:

  • Two well-conducted sham-controlled RCTs (hand and knee OA) were negative for clinically meaningful benefit at their primary endpoints. (Minten et al., PMID 30231990, Mahler et al., PMID 30366945).
  • ArthroRad (multicenter randomized, single-blinded) compared standard-dose vs ve...

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