Evidence map›Paper›PMID 32487218›Full record

Trial reportRadiation oncology (London, England)2020

Detection and dynamics of circulating tumor cells in patients with high-risk prostate cancer treated with radiotherapy and hormones: a prospective phase II study.

Almudena Zapatero, Antonio Gómez-Caamaño, María Ángeles Cabeza Rodriguez, Laura Muinelo-Romay, Carmen Martin de Vidales, Alicia Abalo, Patricia Calvo Crespo, Luis Leon Mateos, Carlos Olivier, Lorena Vega Vega Piris

Registry-linked trialOpen access · goldAbstract readClinical Trial, Phase IIMulticenter Study
In one paragraph

Trial report in Radiation oncology (London, England), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01800058 (Prognostic Value of the Levels of Circulating Tumor Cells), 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
2.8field-weighted citation impact, top 7% 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.

NCT01800058 completednot on this map

Prognostic Value of the Levels of Circulating Tumor Cells (CTCs) in Peripheral Blood in Patients With Prostate Cancer at High Risk (Clinical Stages IIB-III) Treated Radically With Radiotherapy and Hormone Therapy.

TypeobservationalSponsorFundación de Investigación Biomédica - Hospital Universitario de La PrincesaRan2014 to 2018Enrolled68ConditionsPatients With High-risk Prostate Cancer
3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

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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

10 authors at 4 institutions in 1 country.

Almudena ZapateroRadiation Oncology Department, Hospital Universitario de la Princesa, Health Research Institute IIS-IP, Diego de León 62, 28006, Madrid, Spain. almudena.zapatero@salud.madrid.org.ORCID http://orcid.org/0000-0003-2930-2312
Antonio Gómez-CaamañoHospital Universitario de Santiago de Compostela, Santiago de Compostela, Spain.
María Ángeles Cabeza RodriguezHospital Universitario 12 de Octubre, Madrid, Spain.
Laura Muinelo-RomayLiquid Biopsy Analysis Unit, Health Research Institute of Santiago (IDIS), CIBERONC, Santiago de Compostela, Spain.
Carmen Martin de VidalesRadiation Oncology Department, Hospital Universitario de la Princesa, Health Research Institute IIS-IP, Diego de León 62, 28006, Madrid, Spain.
Alicia AbaloLiquid Biopsy Analysis Unit, Health Research Institute of Santiago (IDIS), CIBERONC, Santiago de Compostela, Spain.
Patricia Calvo CrespoHospital Universitario de Santiago de Compostela, Santiago de Compostela, Spain.
Luis Leon MateosHospital Universitario de Santiago de Compostela, Santiago de Compostela, Spain.
Carlos OlivierRadiation Oncology Department, Hospital Universitario de la Princesa, Health Research Institute IIS-IP, Diego de León 62, 28006, Madrid, Spain.
Lorena Vega Vega PirisMethodology Unit, Health Research Institute of Hospital Universitario de La Princesa, Madrid, Spain.
Hospital Universitario de La Princesa · ESComplejo Hospitalario Universitario de Santiago · ESCentro de Investigación Biomédica en Red de Cáncer · ESHospital Universitario 12 De Octubre · ES

Funding

Janssen Pharmaceuticals 212082PCR4005
6 · The paper itself

Abstract

backgroundCirculating tumor cells (CTCs) are an established prognostic marker in castration-resistant prostate cancer but have received little attention in localized high-risk disease. We studied the detection rate of CTCs in patients with high-risk prostate cancer before and after androgen deprivation therapy and radiotherapy to assess its value as a prognostic and monitoring marker. PATIENTS AND

methodsWe performed a prospective analysis of CTCs in the peripheral blood of 65 treatment-naïve patients with high-risk prostate cancer. EpCAM-positive CTCs were enumerated using the CELLSEARCH system at 4 timepoints. A cut off of 0 vs ≥ 1 CTC/7.5 ml blood was defined as a threshold for negative versus positive CTCs status.

resultsCTCs were detected in 5/65 patients (7.5%) at diagnosis, 8/62 (12.9%) following neoadjuvant androgen deprivation and 11/59 (18.6%) at the end of radiotherapy, with a median CTC count/7.5 ml of 1 (range, 1-136). Only 1 patient presented a positive CTC result 9 months after radiotherapy. Positive CTC status (at any timepoint) was not significantly associated with any clinical or pathologic factors. However, when we analyzed variations in CTC patterns following treatment, we observed a significant association between conversion of CTCs and stages T3 (P = 0.044) and N1 (P = 0.002). Detection of CTCs was not significantly associated with overall survival (P > 0.40).

conclusionsOur study showed a low detection rate for CTCs in patients with locally advanced high-risk prostate cancer. The finding of a de novo positive CTC count after androgen deprivation therapy is probably due to a passive mechanism associated with the destruction of the tumor. Further studies with larger samples and based on more accurate detection of CTCs are needed to determine the potential prognostic and therapeutic value of this approach in non-metastatic prostate cancer.

trial registrationClinicalTrials.gov ID: NCT01800058.

Indexed as

AgedAndrogen AntagonistsBiomarkers, TumorChemoradiotherapyHumansMaleMiddle AgedNeoplastic Cells, CirculatingPrognosisProstatic Neoplasms, Castration-ResistantAndrogen AntagonistsBiomarkers, TumorAndrogen suppressionCirculating tumor cells (CTCs)Prognostic factor, detectionProstate cancerRadiotherapyTreatment outcome

Identifiers

PMID32487218
PMCPMC7268302
OpenAlexW3030371471

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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.