Evidence map›Paper›PMID 34926988›Full record

ArticleJNCI cancer spectrum2021

Real-World Use of Androgen-Deprivation Therapy: Intensification Among Older Canadian Men With de Novo Metastatic Prostate Cancer.

Christopher J D Wallis, Shawn Malone, Ilias Cagiannos, Scott C Morgan, Robert J Hamilton, Naveen S Basappa, Cristiano Ferrario, Geoffrey T Gotto, Ricardo Fernandes, Tamim Niazi and 7 more

Open access · goldAbstract readComment
In one paragraph

Article in JNCI cancer spectrum, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
4.3field-weighted citation impact, top 5% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 citations in OpenAlex.

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  10. Practice patterns and predictors of treatment intensification in patients with metastatic castration-sensitive prostate cancer.Canadian Urological Association journal = Journal de l'Association des urologues du Canada · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

17 authors at 10 institutions in 2 countries.

Christopher J D WallisDepartment of Urologic Surgery, Vanderbilt University Medical Center, Nashville, TN, USA.ORCID 0000-0002-5990-4026
Shawn MaloneDivision of Radiation Oncology, The Ottawa Hospital, University of Ottawa, Ottawa, ON, Canada.
Ilias CagiannosDivision of Urology, The Ottawa Hospital, University of Ottawa, Ottawa, ON, Canada.ORCID 0000-0002-1066-2986
Scott C MorganDivision of Radiation Oncology, The Ottawa Hospital, University of Ottawa, Ottawa, ON, Canada.ORCID 0000-0002-6568-3346
Robert J HamiltonDepartment of Surgery, University of Toronto, Princess Margaret Cancer Centre, Toronto, ON, Canada.
Naveen S BasappaDepartment of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, AB, Canada.
Cristiano FerrarioDepartment of Oncology, McGill University, Segal Cancer Centre, Jewish General Hospital, Montreal, QC, Canada.
Geoffrey T GottoDepartment of Surgery, Southern Alberta Institute of Urology, University of Calgary, Calgary, AB, Canada.
Ricardo FernandesDivision of Medical Oncology, London Regional Cancer Program, London, ON, Canada.
Tamim NiaziRadiation Oncology Department, Jewish General Hospital, McGill University, Montreal, QC, Canada.
Krista L NoonanBC Cancer Agency, University of British Columbia, Surrey, BC, Canada.
Fred SaadGenitourinary Oncology, Centre Hospitalier de l'Université de Montréal, University of Montreal, Montréal, QC, Canada.
Sebastien J HotteDepartment of Oncology, McMaster University, Juravinski Cancer Centre, Hamilton, ON, Canada.
Huong HewMedical Affairs, Janssen Inc, Toronto, ON, Canada.
Katherine F Y ChanMedical Affairs, Janssen Inc, Toronto, ON, Canada.ORCID 0000-0003-4238-0921
Laura Park WyllieMedical Affairs, Janssen Inc, Toronto, ON, Canada.
Bobby ShayeganInstitute of Urology, St Joseph's Healthcare, McMaster University, Hamilton, ON, Canada.ORCID 0000-0001-9570-610X
University of Ottawa · CAJewish General Hospital · CABC Cancer Agency · CACentre Hospitalier de l’Université de Montréal · CAJuravinski Cancer Centre · CASt. Joseph’s Healthcare Hamilton · CAUniversity of Alberta · CAUniversity of Calgary · CAUniversity of Toronto · CAVanderbilt University Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Despite the wealth of evidence demonstrating the efficacy of treatment intensification beyond androgen-deprivation therapy (ADT) among patients with de novo metastatic castration-sensitive prostate cancer (mCSPC), little is known of its real-world use. This study examined the real-world uptake of ADT treatment intensification among older men in a large Canadian province. Methods: We performed a retrospective population-based cohort study using province-wide linked administrative data in Ontario, Canada. Patients 66 years of age and older with de novo mCSPC were included and their treatment with conventional ADT-based regimens, ADT plus next-generation androgen receptor axis-targeted therapy, and ADT plus docetaxel were identified and stratified by time. Results: From 2014 to 2019, 3556 patients were identified with de novo mCSPC. Most patients (n = 2794 [78.6%]) were treated with a conventional ADT regimen, whereas 399 (11.2%) patients received ADT intensification with docetaxel and 52 (1.5%) patients received abiraterone acetate plus prednisone. In a time-stratified analysis of ADT intensification before and after the pivotal AA+P trial (LATITUDE), AA+P uptake increased from 0.5% to 3.0%, whereas docetaxel use dropped from 12.0% to 10.0%. The median survival of the study population was 18 months (interquartile range = 10-31). Conclusions: The majority of patients with de novo mCSPC are treated with ADT alone in the Canadian real-world setting, despite randomized clinical trial evidence of benefit with the use of ADT-intensified regimens. As ADT treatment intensification is substantially underused, better understanding of the barriers to treatment and targeted education to address them are needed.

Indexed as

Androgen AntagonistsProstatic NeoplasmsAgedAndrogensCohort StudiesHumansMaleOntarioRetrospective StudiesAndrogen AntagonistsAndrogens

Identifiers

PMID34926988
PMCPMC8678925
OpenAlexW3213812451

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.