Can adding radiation to immunotherapy help advanced cancer patients? new study explores safety and 'Abscopal' effects
NCT ID NCT03042156
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at 42 adults with advanced solid tumors who were already on or about to start checkpoint inhibitor immunotherapy and also needed palliative radiotherapy for symptom relief. Researchers wanted to see if the combination was safe (less than 30% severe side effects) and whether it could shrink tumors both where the radiation was aimed and elsewhere in the body (the 'abscopal' effect). The goal was to gather more information on how patients respond to this combined treatment.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- checkpoint inhibitor immunotherapy and palliative radiation therapy
- What this could lead to
- If successful, this could help doctors understand which patients with advanced cancer might benefit from combining immunotherapy with palliative radiation, potentially improving symptom control and even shrinking tumors outside the radiated area.
- What could go wrong
- This is a small, early-stage study with only 42 participants, so results may not apply to everyone. The main goal was safety, not proving the combination works better than either treatment alone.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Princess Margaret Hospital
Toronto, Ontario, M5G 2M9, Canada
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