Evidence map›Paper›PMID 27586506›Full record

Trial reportBMC cancer2016

A comparative study on the efficacies of gonadotropin-releasing hormone (GnRH) agonist and GnRH antagonist in neoadjuvant androgen deprivation therapy combined with transperineal prostate brachytherapy for localized prostate cancer.

Kenta Miki, Hiroshi Sasaki, Masahito Kido, Hiroyuki Takahashi, Manabu Aoki, Shin Egawa

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC cancer, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 23% 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Degarelix for treating advanced hormone-sensitive prostate cancer.The Cochrane database of systematic reviews · 2021
    Pooled it
  2. Article
  3. Review
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 1 institution in 1 country.

Kenta MikiDepartment of Urology, Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, 105-8461, Tokyo, Japan. kentamiki@jikei.ac.jp.
Hiroshi SasakiDepartment of Urology, Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, 105-8461, Tokyo, Japan.
Masahito KidoDepartment of Urology, Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, 105-8461, Tokyo, Japan.
Hiroyuki TakahashiDepartment of Pathology, Jikei University School of Medicine, Tokyo, Japan.
Manabu AokiDepartment of Radiology, Jikei University School of Medicine, Tokyo, Japan.
Shin EgawaDepartment of Urology, Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, 105-8461, Tokyo, Japan.
Jikei University School of Medicine · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNeoadjuvant androgen deprivation therapy (ADT) has been suggested to confer several clinical benefits in patients with prostate cancer (PCa) undergoing transperineal prostate brachytherapy (TPPB). Unlike gonadotropin-releasing hormone (GnRH) receptor agonists, a GnRH antagonist such as degarelix can achieve castrate levels of testosterone without testosterone flare. However, normalization of serum testosterone levels following completion of neoadjuvant ADT in either form of treatment has never been compared in clinical trials. METHODS/

designThis is a single-center, open-label, randomized controlled study that will compare the efficacy and safety of degarelix with those of existing GnRH agonists combined with (125)I-TPPB. A total of 56 patients with low/intermediate-risk clinically localized PCa will be enrolled and randomized to one of two treatment groups: the GnRH agonist group and the degarelix group. Patients in the GnRH agonist group will receive leuprorelin acetate or goserelin acetate, and those in the degarelix group will receive the initial dose of 240 mg as 2 subcutaneous injections of 120 mg each, and then 80 mg of maintenance doses every 4 weeks for 12 weeks. Those randomly assigned to the 12-week intervention period will subsequently undergo 48-weeks of follow-up after (125)I-TPPB. The primary endpoint is defined as normalization of serum testosterone levels (>50 ng/dL) following completion of neoadjuvant ADT. All patients will be assessed every 4 weeks for the first 24 weeks, then every 12 weeks for the next 36 weeks after administrations of these drugs. Secondary endpoints are the proportion of normalized serum luteinizing hormone (LH) and follicle-stimulating hormone (FSH), the percent reduction in prostate specific antigen (PSA) compared with pretreatment levels, the percent reduction in total prostate volume (TPV) during neoadjuvant ADT, the percent increase in TPV after (125)I-TPPB, the percent reduction in hemoglobin, serum alkaline phosphatase (ALP), changes in free testosterone and bone mineral content measurement, the proportion of patients who have serum testosterone levels over 50 ng/dL at 12 weeks following completion of neoadjuvant ADT, and the improvement of quality of life (QOL). DISCUSSION: The present study will provide additional insight regarding the benefit and potency of degarelix and will examine its potential as a new option for administration in neoadjuvant ADT.

trial registrationIdentification number: UMIN000015519 . Registration date: October 24, 2014.

Indexed as

Research DesignAdultAgedAndrogen AntagonistsBrachytherapyChemoradiotherapyGonadotropin-Releasing HormoneGoserelinHumansIodine RadioisotopesLeuprolideMaleMiddle AgedNeoadjuvant TherapyOligopeptidesProstatic Neoplasmsacetyl-2-naphthylalanyl-3-chlorophenylalanyl-1-oxohexadecyl-seryl-4-aminophenylalanyl(hydroorotyl)-4-aminophenylalanyl(carbamoyl)-leucyl-ILys-prolyl-alaninamideAndrogen AntagonistsGonadotropin-Releasing HormoneGoserelinIodine RadioisotopesLeuprolideOligopeptidesBrachytherapyGnRH agonistGnRH antagonistNeoadjuvant androgen deprivation therapyProstate cancerProstate specific antigenQuality of lifeTestosterone

Identifiers

PMID27586506
PMCPMC5009655
OpenAlexW2512984459

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.