Evidence map›Paper›PMID 41577962›Full record

ReviewNature reviews. Cancer2026

Radiation as an immune modulator: mechanisms and implications for combination with immunotherapy.

Laurel B Darragh, Sana D Karam

Registry-linked trialAbstract readReview
PubMed Publisher
In one paragraph

Review in Nature reviews. Cancer, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07791602 (Induction Chemoimmunotherapy Followed by Deescalated Definitive Radiotherapy), which is not on this map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT07791602 phase2active not recruitingnot on this map

Induction Chemoimmunotherapy Followed by Deescalated Definitive Radiotherapy (IDEAL-RT) in Locally Advanced Head and Neck Squamous Cell Carcinoma: A Multicenter, Prospective, Phase II, Randomized Non-Inferiority Controlled Trial

TypeinterventionalSponsorCancer Institute and Hospital, Chinese Academy of Medical SciencesRan2026 to 2032Enrolled180ConditionsHead and Neck Squamous Cell Carcinoma, Locally Advanced Head and Neck Cancer, HNSCCArmsCamrelizumab, Platinum-based Chemotherapy plus PD-1 inhibitor, De-escalated Radiotherapy, Standard Radiotherapy
3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  4. Review
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  7. Article
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  12. A Microbial Lipid-ATP Synthase Axis Fuels NK Cell Antitumor Activity.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  13. Article
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  15. Article
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  17. Review
  18. Article
  19. Article
  20. Radiotherapy meets anticancer metallodrugs.Medical review (2021) · 2026
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors.

Laurel B DarraghSchool of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.ORCID http://orcid.org/0000-0002-6445-7988
Sana D KaramDepartment of Radiation Oncology, Washington University in St Louis School of Medicine, St Louis, MO, USA. sanadkaram@wustl.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Radiation therapy can directly kill cancer cells, while simultaneously modulating the immune response. The advent of immune checkpoint blockade (ICB) provided compelling rationale for combination with radiation therapy to improve systemic tumour control. Although this strategy has improved survival in specific contexts, including cervical cancer and head and neck squamous cell carcinoma, the majority of combination trials have not demonstrated clinical benefit and predictive biomarkers remain elusive. These heterogeneous outcomes reflect fundamental gaps in understanding how radiation parameters influence immunological responses. Technological advances enabling diverse radiation delivery protocols have revealed that dose and fractionation profoundly impact the balance between immunostimulation and immunosuppression. Emerging evidence indicates that radiation protocols optimized for cytotoxic effects may not be optimal for immunological synergy with ICB. In this Review, we examine how radiation dose, fractionation and treatment volume shape local and systemic immunity, reconciling mechanistic insights with divergent clinical trial outcomes. We provide rationale for transitioning from empirical combinations towards immunologically informed radiation protocols that could help realize the full potential of radioimmunotherapy combinations.

Indexed as

ImmunotherapyNeoplasmsAnimalsCombined Modality TherapyHumansImmune Checkpoint InhibitorsRadioimmunotherapyImmune Checkpoint Inhibitors

Identifiers

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.