Evidence map›Paper›PMID 23142202›Full record

Trial reportThe Journal of urology2013

Prospective, randomized, double-blind, vehicle controlled, multicenter phase IIb clinical trial of the pore forming protein PRX302 for targeted treatment of symptomatic benign prostatic hyperplasia.

Mostafa M Elhilali, Peter Pommerville, Richard C Yocum, Rosemina Merchant, Claus G Roehrborn, Samuel R Denmeade

Abstract readClinical Trial, Phase IIMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in The Journal of urology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
–field-weighted citation impact
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. Review
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  9. Article
  10. Minimizing Sexual Dysfunction in BPH Surgery.Current sexual health reports · 2019
    Article
  11. Review
  12. Review
  13. Review
  14. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Mostafa M ElhilaliDepartment of Surgery, McGill University, Montreal, Quebec, Canada. mostafa.elhilali@muhc.mcgill.ca
Peter Pommerville
Richard C Yocum
Rosemina Merchant
Claus G Roehrborn
Samuel R Denmeade

Funding

Translational Research Central ServicesP30CA006973 · NCI · JOHNS HOPKINS UNIVERSITY · PI WILLIAM George NELSON · 1985 to 2026
$208.6M
NCI NIH HHS P30 CA006973
6 · The paper itself

Abstract

purposeWe conducted a safety and efficacy evaluation of intraprostatic injection of PRX302, a modified pore forming protein (proaerolysin) activated by prostate specific antigen, as a highly targeted, localized approach to treat lower urinary tract symptoms due to benign prostatic hyperplasia. MATERIALS AND

methodsA total of 92 patients with I-PSS (International Prostate Symptom Score) 15 or greater, peak urine flow 12 ml or less per second and prostate volume 30 to 100 ml were randomized 2:1 to a single ultrasound guided intraprostatic injection of PRX302 vs vehicle (placebo) in this phase IIb double-blind study. Injection was 20% of prostate volume and 0.6 μg PRX302 per gm prostate. Peak urine flow was determined by a blinded reviewer. Benign prostatic hyperplasia medications were prohibited. The primary data set of efficacy evaluable patients (73) was analyzed using last observation carried forward.

resultsPRX302 treatment resulted in an approximate 9-point reduction in I-PSS and 3 ml per second increase in peak urine flow that were statistically significant changes from baseline compared to vehicle. Efficacy was sustained for 12 months. Early withdrawal for other benign prostatic hyperplasia treatment was more common for patients in the vehicle group. Relative to vehicle, PRX302 apparent toxicity was mild, transient, and limited to local discomfort/pain and irritative urinary symptoms occurring in the first few days, with no effect on erectile function.

conclusionsA single administration of PRX302 as a short, outpatient based procedure was well tolerated in patients with lower urinary tract symptoms due to benign prostatic hyperplasia. PRX302 produced clinically meaningful and statistically significant improvement in patient subjective (I-PSS) and quantitative objective (peak urine flow) measures sustained for 12 months. The side effect profile is favorable with most effects attributed to the injection itself and not related to drug toxicity.

Indexed as

Bacterial ToxinsDouble-Blind MethodHumansMaleMiddle AgedMolecular Targeted TherapyPore Forming Cytotoxic ProteinsProspective StudiesProstatic HyperplasiaBacterial ToxinsPore Forming Cytotoxic ProteinsPRX302

Identifiers

PMID23142202
PMCPMC3740739

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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.