Evidence map›Paper›PMID 35372719›Full record

ReviewAdvances in radiation oncology

A Patient-Level Data Meta-analysis of the Abscopal Effect.

Steven J Hatten, Eric J Lehrer, Jenn Liao, Congzhou M Sha, Daniel M Trifiletti, Shankar Siva, Sean M McBride, David Palma, Sheldon L Holder, Nicholas G Zaorsky

Registry-linked trialAbstract readReview
In one paragraph

Review in Advances in radiation oncology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06363773 (Pilot, Exploratory, Prospective Study to Assess the Ability of Stereotactic Radiotherapy to Restore the Efficacy of Anti-PD1 Immunotherapy in Initially Long-responder Patients With Metastatic Progression.), which is not on this map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
–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.

NCT06363773 narecruitingnot on this map

Pilot, Exploratory, Prospective Study to Assess the Ability of Stereotactic Radiotherapy to Restore the Efficacy of Anti-PD1 Immunotherapy in Initially Long-responder Patients With Metastatic Progression.

TypeinterventionalSponsorElsanRan2026 to 2028Enrolled35ConditionsMetastatic CancerArmsStereotactic Radiotherapy
3 · Its place in the literature

Who cites it

34 citing papers in PubMed.

  1. Review
  2. Review
  3. Review
  4. Radiomitigators: Breakthroughs in Post-Radiation Recovery.Antioxidants (Basel, Switzerland) · 2026
    Review
  5. Review
  6. Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Radiotherapy Enhances Metastasis Through Immune Suppression by Inducing PD-L1 and MDSC in Distal Sites.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024
    Article
  19. Review
  20. Review
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

10 authors.

Steven J HattenDepartment of Radiation Oncology, Penn State Cancer Institute, Hershey, Pennsylvania.
Eric J LehrerDepartment of Radiation Oncology, Icahn School of Medicine at Mount Sinai, New York, New York.
Jenn LiaoDepartment of Radiation Oncology, Penn State Cancer Institute, Hershey, Pennsylvania.
Congzhou M ShaDepartment of Radiation Oncology, Penn State Cancer Institute, Hershey, Pennsylvania.
Daniel M TrifilettiDepartment of Radiation Oncology, Mayo Clinic, Jacksonville, Florida.
Shankar SivaSir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia.
Sean M McBrideDepartment of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York.
David PalmaDepartment of Radiation Oncology, London Health Sciences Centre, London, Ontario, Canada.
Sheldon L HolderDivision of Hematology and Oncology, Brown University Warren Alpert School of Medicine, Providence, Rhode Island.
Nicholas G ZaorskyDepartment of Radiation Oncology, Penn State Cancer Institute, Hershey, Pennsylvania.

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Hongbiao Carl Lekaye · 1985 to 2026
$347.4M
NCI NIH HHS L30 CA231572NCI NIH HHS P30 CA008748
6 · The paper itself

Abstract

Purpose: The abscopal effect is defined when a form of local therapy causes tumor regression of both the target lesion and any untreated tumors. Herein cases of the abscopal effect were systematically reviewed and a patient-level data analysis was performed for clinical predictors of both duration of response and survival. Methods and Materials: The Population, Intervention, Control, Outcome, Study (PICOS) design approach, Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) literature selection process, and Meta-analysis of Observational Studies in Epidemiology (MOOSE) were used to find articles published before September 2019 in MEDLINE/PubMed and Google Scholar. Inclusion criteria were (1) population: patients with reported abscopal response; (2) intervention: documented treatment(s); (3) control: none; (4) outcomes: overall and progression-free survival; and (5) setting: retrospective case reports. Time from treatment until abscopal response and time from abscopal response until progression/death were calculated. Univariate and multivariate analyses were conducted for survival outcomes. Results: Fifty studies (n = 55 patients) were included. Median age was 65 years (interquartile range [IQR], 58-70) and 62% were male. Fifty-four (98%) patients received radiation therapy, 34 (62%) received radiation therapy alone, 5 (9.1%) underwent surgery, 4 (7.3%) received chemotherapy, and 11 (20%) received immunotherapy. Median total dose was 32 Gy (IQR, 25.5-48 Gy) and median dose per fraction was 3 Gy (IQR, 2-7.2). Median time until abscopal response was 4 months (IQR, 1-5; min 0.5, max 24). At 5 years, overall survival was 63% and distant progression-free survival was 45%. No variables had statistical significance in predicting duration of response or survival. Conclusions: Almost all reported cases of the abscopal response are after radiation therapy; however, there are no known predictors of duration of response or survival in this population.

Identifiers

PMID35372719
PMCPMC8971834

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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.