Evidence map›Paper›PMID 26486824›Full record

Trial reportJapanese journal of clinical oncology2015

Efficacy and safety of leuprorelin acetate 6-month depot in prostate cancer patients: a Phase III, randomized, open-label, parallel-group, comparative study in Japan.

Kazuhiro Suzuki, Mikio Namiki, Tsukasa Fujimoto, Nobuyoshi Takabayashi, Kentarou Kudou, Hideyuki Akaza

Open access · hybridAbstract readClinical Trial, Phase IIIComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in Japanese journal of clinical oncology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

10 citing papers in PubMed, 18 citations in OpenAlex.

  1. Trial
  2. Comparison of BeiyiFrontiers in pharmacology · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Editorial Comment to Considerations for the use of gonadotropin-releasing hormone agonists and antagonists in patients with prostate cancer.International journal of urology : official journal of the Japanese Urological Association · 2020
    Article
  8. Review
  9. Article
  10. 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

6 authors at 4 institutions in 1 country.

Kazuhiro SuzukiDepartment of Urology, Gunma University Graduate School of Medicine, Gunma kazu@gunma-u.ac.jp.
Mikio NamikiDepartment of Integrative Cancer Therapy and Urology, Kanazawa University Graduate School of Medical Science, Ishikawa.
Tsukasa FujimotoTakeda Pharmaceutical Company Limited, Osaka.
Nobuyoshi TakabayashiTakeda Pharmaceutical Company Limited, Osaka.
Kentarou KudouTakeda Pharmaceutical Company Limited, Osaka.
Hideyuki AkazaDepartment of Strategic Investigation on Comprehensive Cancer Network, The University of Tokyo, Tokyo, Japan.
Takeda (Japan) · JPGunma University · JPKanazawa University · JPThe University of Tokyo · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveLeuprorelin acetate (TAP-144-SR) is commonly used worldwide in prostate cancer patients. This study was conducted to assess the non-inferiority of a 6-month depot formulation of TAP-144-SR (TAP-144-SR [6M]) 22.5 mg to a 3-month depot formulation of TAP-144-SR (TAP-144-SR [3M]) 11.25 mg in prostate cancer patients in Japan.

methodsThis was a 48-week Phase III, open-label, parallel-group comparative study. TAP-144-SR (6M) 22.5 mg (6M group) and TAP-144-SR (3M) 11.25 mg (3M group) were administered to 81 and 79 subjects, respectively. The primary endpoint was the rate of serum testosterone suppression to the castrate level (≤100 ng/dl).

resultsSerum testosterone of all subjects excluding one subject in the 3M group was suppressed to the castrate level throughout 48 weeks. The estimated between-group difference (6M group - 3M group) in suppression rate was 1.3% (95% confidence interval: -3.4, 6.8), and its lower confidence interval was more than -10% of the pre-determined allowable limit value to judge the non-inferiority. The prostate-specific antigen concentrations were stable throughout the study in both groups. Progressive disease in the best overall response based on the Response Evaluation Criteria In Solid Tumors was 0.0% for the 6M group and 2.6% for the 3M group. Adverse events occurred in 92.6% in the 6M group and 89.9% in the 3M group. Adverse events leading to discontinuation were reported in 2.5% in the 6M group and 3.8% in the 3M group.

conclusionsTAP-144-SR (6M) was not inferior to TAP-144-SR (3M) for the suppressive effect on serum testosterone level. TAP-144-SR (6M) was also as well tolerated as TAP-144-SR (3M).

Indexed as

AgedAged, 80 and overAntineoplastic Agents, HormonalBiomarkers, TumorDelayed-Action PreparationsHumansJapanLeuprolideMaleMiddle AgedProstate-Specific AntigenProstatic NeoplasmsResearch DesignTestosteroneTreatment OutcomeAntineoplastic Agents, HormonalBiomarkers, TumorDelayed-Action PreparationsLeuprolideProstate-Specific AntigenTestosteroneleuprorelinluteinizing hormone-releasing hormoneprostate cancerprostate-specific antigentestosterone

Identifiers

PMID26486824
PMCPMC4653047
OpenAlexW1753391361

What OpenQuestion holds

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LicenceCC BY-NC
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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.