Evidence map›Paper›PMID 20562209›Full record

Trial reportClinical cancer research : an official journal of the American Association for Cancer Research2010

A viral vaccine encoding prostate-specific antigen induces antigen spreading to a common set of self-proteins in prostate cancer patients.

Nancy J Nesslinger, Alvin Ng, Kwong-Yok Tsang, Theresa Ferrara, Jeffrey Schlom, James L Gulley, Brad H Nelson

Registry-linked trialOpen access · bronzeAbstract readClinical Trial, Phase II
In one paragraph

Trial report in Clinical cancer research : an official journal of the American Association for Cancer Research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00005916 (A Randomized Phase II Study of a PSA-Based Vaccine in Patients With Localized Prostate Cancer Receiving Standard Radiotherapy), which is not on this map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
2.3field-weighted citation impact, top 11% 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.

NCT00005916 phase2completednot on this map

A Randomized Phase II Study of a PSA-Based Vaccine in Patients With Localized Prostate Cancer Receiving Standard Radiotherapy

TypeinterventionalSponsorNational Cancer Institute (NCI)Ran2000 to 2005Enrolled48ConditionsProstate Cancer, Prostate NeoplasmArmsrV-PSA, rF-PSA, rV-B7.1
3 · Its place in the literature

Who cites it

38 citing papers in PubMed, 64 citations in OpenAlex.

  1. Humoral Immune Response against Nontargeted Tumor Antigens after Treatment with Sipuleucel-T and Its Association with Improved Clinical Outcome.Clinical cancer research : an official journal of the American Association for Cancer Research · 2015
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  11. Beyond cancer cells: Targeting the tumor microenvironment with gene therapy and armed oncolytic virus.Molecular therapy : the journal of the American Society of Gene Therapy · 2021
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  19. Why has active immunotherapy not worked in lung cancer?Annals of oncology : official journal of the European Society for Medical Oncology · 2015
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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

7 authors at 4 institutions in 2 countries.

Nancy J NesslingerTrev & Joyce Deeley Research Centre, BC Cancer Agency-Vancouver Island Centre, 2410 Lee Avenue, Victoria, British Columbia, Canada.
Alvin Ng
Kwong-Yok Tsang
Theresa Ferrara
Jeffrey Schlom
James L Gulley
Brad H Nelson
National Cancer Institute · USBC Cancer Agency · CAUniversity of British Columbia · CAUniversity of Victoria · CA

Funding

Strategies for Therapeutic Cancer Vaccine Clinical TrialsZIABC010425 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SCHLOM, JEFFREY · 2009 to 2023
$13.7M
Clinical trials employing cancer vaccine combination therapiesZIABC010945 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI GULLEY, JAMES L. · 2009 to 2022
$9.6M
Intramural NIH HHS ZIA BC010945
6 · The paper itself

Abstract

purposeWe previously reported a randomized phase II clinical trial combining a poxvirus-based vaccine encoding prostate-specific antigen (PSA) with radiotherapy in patients with localized prostate cancer. Here, we investigate whether vaccination against PSA induced immune responses to additional tumor-associated antigens and how this influenced clinical outcome. EXPERIMENTAL

designPretreatment and posttreatment serum samples from patients treated with vaccine + external beam radiation therapy (EBRT) versus EBRT alone were evaluated by Western blot and serologic screening of a prostate cancer cDNA expression library (SEREX) to assess the development of treatment-associated autoantibody responses.

resultsWestern blotting revealed treatment-associated autoantibody responses in 15 of 33 (45.5%) patients treated with vaccine + EBRT versus 1 of 8 (12.5%) treated with EBRT alone. SEREX screening identified 18 antigens, which were assembled on an antigen array with 16 previously identified antigens. Antigen array screening revealed that 7 of 33 patients (21.2%) treated with vaccine + EBRT showed a vaccine-associated autoantibody response to four ubiquitously expressed self-antigens: DIRC2, NDUFS1, MRFAP1, and MATN2. These responses were not seen in patients treated with EBRT alone, or other control groups. Patients with autoantibody responses to this panel of antigens had a trend toward decreased biochemical-free survival.

conclusionsVaccine + EBRT induced antigen spreading in a large proportion of patients. A subset of patients developed autoantibodies to a panel of four self-antigens and showed a trend toward inferior outcomes. Thus, cancer vaccines directed against tumor-specific antigens can trigger autoantibody responses to self-proteins, which may influence the efficacy of vaccination.

Indexed as

AgedAged, 80 and overAntigensAntigens, NeoplasmAutoantibodiesBlotting, WesternCancer VaccinesCombined Modality TherapyGene ExpressionGene Expression ProfilingGenetic VectorsHumansKaplan-Meier EstimateMaleMiddle AgedPoxviridaeAntigensAntigens, NeoplasmAutoantibodiesCancer VaccinesProstate-Specific Antigen

Identifiers

PMID20562209
PMCPMC2912964
OpenAlexW2134724478

What OpenQuestion holds

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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.