Evidence map›Paper›PMID 34162398›Full record

ArticleRadiation oncology (London, England)2021

Salvage re-irradiation using stereotactic body radiation therapy for locally recurrent prostate cancer: the impact of castration sensitivity on treatment outcomes.

Ron Lewin, Uri Amit, Menachem Laufer, Raanan Berger, Zohar Dotan, Liran Domachevsky, Tima Davidson, Orith Portnoy, Lev Tsvang, Maoz Ben-Ayun and 2 more

Open access · goldAbstract read
In one paragraph

Article in Radiation oncology (London, England), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
2.5field-weighted citation impact, top 10% of its field
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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 22 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Isotoxic stereotactic reirradiation for recurrent pelvic cancers.Physics and imaging in radiation oncology · 2026
    Article
  5. Article
  6. Criteria for Re-Irradiation.Deutsches Arzteblatt international · 2024
    Review
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  8. Review
  9. Article
  10. Linac-based stereotactic salvage reirradiation for intraprostatic prostate cancer recurrence: toxicity and outcomes.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2023
    Article
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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

12 authors at 2 institutions in 1 country.

Ron LewinRadiation Oncology Department, Sheba Medical Center, 52621, Ramat-Gan, Israel. ron.lewin@sheba.health.gov.il.ORCID http://orcid.org/0000-0002-6945-0240
Uri AmitRadiation Oncology Department, Sheba Medical Center, 52621, Ramat-Gan, Israel.
Menachem LauferInstitute of Urology, Sheba Medical Center, Ramat-Gan, Israel.
Raanan BergerInstitute of Oncology, Sheba Medical Center, Ramat-Gan, Israel.
Zohar DotanInstitute of Urology, Sheba Medical Center, Ramat-Gan, Israel.
Liran DomachevskyDepartment of Nuclear Medicine, Sheba Medical Center, Ramat-Gan, Israel.
Tima DavidsonDepartment of Nuclear Medicine, Sheba Medical Center, Ramat-Gan, Israel.
Orith PortnoyDepartment of Radiology, Sheba Medical Center, Ramat-Gan, Israel.
Lev TsvangRadiation Oncology Department, Sheba Medical Center, 52621, Ramat-Gan, Israel.
Maoz Ben-AyunRadiation Oncology Department, Sheba Medical Center, 52621, Ramat-Gan, Israel.
Ilana WeissRadiation Oncology Department, Sheba Medical Center, 52621, Ramat-Gan, Israel.
Zvi SymonRadiation Oncology Department, Sheba Medical Center, 52621, Ramat-Gan, Israel.
Sheba Medical Center · ILTel Aviv University · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAdvances in imaging, biomaterials and precision radiotherapy provide new opportunities to salvage locally recurrent prostate cancer (PC). This study evaluates the efficacy and safety of re-irradiation using stereotactic body radiation therapy (SBRT). We hypothesized that patients with castrate-resistant PC (CRPC) would benefit less from local salvage.

methodsA prospective clinical database was reviewed to extract 30 consecutive patients treated with prostate re-irradiation. Gallium prostate specific membrane antigen (PSMA) ligand positron emission tomography was performed following prostate-specific antigen failure in all patients and biopsy was obtained in 18 patients (60%). Re-irradiation was either focal (n = 13) or whole-gland (n = 17). Endo-rectal balloons were used in twenty-two patients and hydrogel spacers in eight patients. The median prescription dose was 5 fractions of 6.5 (range: 6-8) Gray (Gy).

resultsMedian follow-up was 28 months. Failure occurred in 10 (out of 11) CRPC patients versus 6 (out of 19) castrate-sensitive patients (91% vs. 32%, p = 0.008) after a median of 13 and 23 months, respectively. Metastases occurred in 64% (n = 7) of CRPC patients versus 16% (n = 3) of castrate-sensitive patients (p = 0.007). Two patients experienced local in-field recurrence, thus local control was 93%. The 2 and 3-year recurrence-free survival were 84% and 79% for castrate-sensitive patients versus 18% and 9% for CRPC patients (p < 0.001), and 3-year metastasis-free survival was 90% versus 27% (p < 0.01) for castrate-sensitive and CRPC patients, respectively. Acute grade II and III genitourinary (GU) toxicity occurred in 27% and 3%, and late GU toxicity in 30% and 3%, respectively. No ≥ grade II acute gastrointestinal (GI) toxicity occurred, and only one patient (3%) developed late grade II toxicity.

conclusionsEarly delivery of salvage SBRT for local recurrence is associated with excellent 3-year disease control and acceptable toxicity in the castrate-sensitive phenotype. PSMA imaging for detection of local recurrence and the use of precision radiotherapy with rectal protective devices should be further investigated as a novel salvage strategy for radio-recurrent PC.

Indexed as

AgedAntigens, SurfaceCastrationGlutamate Carboxypeptidase IIHumansMaleMiddle AgedNeoplasm Recurrence, LocalOrgans at RiskPrognosisProspective StudiesProstatic NeoplasmsRadiosurgeryRadiotherapy DosageRadiotherapy, Intensity-ModulatedRadiotherapy Planning, Computer-AssistedAntigens, SurfaceFOLH1 protein, humanGlutamate Carboxypeptidase IICastrate resistantProstateRe-irradiationSalvageStereotactic body radiation therapy

Identifiers

PMID34162398
PMCPMC8220691
OpenAlexW3176420645

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.