Evidence map›Paper›PMID 32875513›Full record

ArticleInternational journal of clinical oncology2021

Clinical indicators for predicting prognosis after radium-223 administration in castration-resistant prostate cancer with bone metastases.

Yoshiyuki Yamamoto, Yohei Okuda, Tomohiro Kanaki, Ryo Tanaka, Akira Nagahara, Yasutomo Nakai, Masashi Nakayama, Ken-Ichi Kakimoto, Kazuo Nishimura

Abstract read
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In one paragraph

Article in International journal of clinical oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 8% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Management of bone metastasis in prostate cancer.Journal of bone and mineral metabolism · 2023
    Review
  7. Article
  8. Article
  9. Article
  10. Administration of radium-223 and the prognosis in Japanese bone metastatic castration-resistant prostate cancer patients: A large database study.International journal of urology : official journal of the Japanese Urological Association · 2022
    Article
  11. A single-center, multidisciplinary experience with radium-223 dichloride in men with metastatic castrate-resistant prostate cancer.Canadian Urological Association journal = Journal de l'Association des urologues du Canada · 2022
    Article
  12. Article
  13. Stereotactic ablative radiotherapy in castration-resistant prostate cancer patients with oligoprogression during androgen receptor-targeted therapy.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2021
    Article
  14. Article
  15. Article
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

9 authors at 2 institutions in 1 country.

Yoshiyuki YamamotoDepartment of Urology, Osaka International Cancer Institute, 3-1-69 Otemae, Chuo-ku, Osaka, 541-8567, Japan.
Yohei OkudaDepartment of Urology, Osaka International Cancer Institute, 3-1-69 Otemae, Chuo-ku, Osaka, 541-8567, Japan.
Tomohiro KanakiDepartment of Urology, Osaka International Cancer Institute, 3-1-69 Otemae, Chuo-ku, Osaka, 541-8567, Japan.
Ryo TanakaDepartment of Urology, Osaka International Cancer Institute, 3-1-69 Otemae, Chuo-ku, Osaka, 541-8567, Japan.
Akira NagaharaDepartment of Urology, Osaka International Cancer Institute, 3-1-69 Otemae, Chuo-ku, Osaka, 541-8567, Japan.
Yasutomo NakaiDepartment of Urology, Osaka International Cancer Institute, 3-1-69 Otemae, Chuo-ku, Osaka, 541-8567, Japan.
Masashi NakayamaDepartment of Urology, Osaka International Cancer Institute, 3-1-69 Otemae, Chuo-ku, Osaka, 541-8567, Japan.
Ken-Ichi KakimotoDepartment of Urology, Osaka International Cancer Institute, 3-1-69 Otemae, Chuo-ku, Osaka, 541-8567, Japan.
Kazuo NishimuraDepartment of Urology, Osaka International Cancer Institute, 3-1-69 Otemae, Chuo-ku, Osaka, 541-8567, Japan. kazuo.nishimura@oici.jp.ORCID http://orcid.org/0000-0002-7644-1350
Osaka International Cancer Institute · JPOsaka International Cancer Institute · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRadium-223 (Ra-223) is a targeted alpha therapy that has been shown to prolong overall survival (OS) in patients with metastatic castration-resistant prostate cancer (mCRPC) with bone metastases. However, prognosis after Ra-223 administration varies among patients. The aim of the present study was to assess risk factors associated with the poor prognosis of patients treated with Ra-223.

methodsWe retrospectively reviewed patients' records of treatment with Ra-223 between October 2016 and December 2019. All patients had mCRPC, bone metastasis, and no known visceral metastases, and received up to six cycles of Ra-223 (55 kBq/kg). Prognostic factors for OS were analyzed by Cox proportional hazards model and log-rank test.

resultsWe identified 42 patients who received at least one cycle of Ra-223 (median six cycles, range 1-6). Approximately two-thirds of patients had received at least two lines of therapy for mCRPC. The median age was 74 years, and the median follow-up duration was 13.6 months. The median OS time was 16.6 months. On multivariate analysis, PSA doubling time (PSADT) (0-3 months) at baseline, number of bone metastases (≥ 20), and treatment line of Ra-223 (4th-5th line) remained significantly correlated with the poor OS (HR 4.354, P = 0.003; HR 2.855, P = 0.020; and HR 4.871, P = 0.001, respectively).

conclusionsOur study demonstrated that a shorter PSADT, a heavier volume of bone metastases, and a later treatment line before Ra-223 are poor prognostic factors for mCRPC patients. These newly discovered risk factors may help select patients who potentially have long-term OS after Ra-223 treatment.

Indexed as

Bone NeoplasmsProstatic Neoplasms, Castration-ResistantRadiumAgedHumansMalePrognosisRetrospective StudiesRadiumRadium-223Castration-resistant prostate cancerNumber of bone metastasesOverall survivalPSA doubling timeRadium-223

Identifiers

PMID32875513
OpenAlexW3082967161

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.