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Prognostic Value of the Urinary Nerve Growth Factor in the Patients With Benign Prostatic Hyperplasia

28. november 2019 opdateret af: KYU-SUNG LEE

Prognostic Value of the Urinary Nerve Growth Factor (NGF) in the Patients With Benign Prostatic Hyperplasia (BPH) Who Undergo Holmium Laser Enucleation of the Prostate (HoLEP)

Persistent detrusor overactivity (DO) after transurethral prostatectomy results in symptomatic failure in more than one third of the patients. Storage symptoms are major complaints in the early postoperative period after Holmium Laser Enucleation of the Prostate (HoLEP). Levels of the urinary nerve growth factor (NGF), produced by bladder urothelium and smooth muscle, are increased in the patients with overactive bladder (OAB), and decreased after the OAB symptoms were improved. Also, urinary NGF levels are increased in patients with benign prostatic obstruction (BPO), but the changes of the NGF levels after relief of the BPO by the medical or surgical treatment have not been fully investigated. If the elevated urinary NGF levels are reduced after successful surgical treatment of BPO, measurement of urinary NGF could be a useful objective tool to assess the therapeutic outcomes of the operation.

The aims of this study are to measure the urinary NGF levels in patients with BPO and to compare the results between the patients with detrusor overactivity (DO) and without detrusor overactivity (Non-DO), average 2 weeks before Holmium Laser Enucleation of the Prostate (HoLEP) procedure. After HoLEP, urinary NGF levels are rechecked at the periods of postoperative 3 months and 6 months, and compare changes between the two groups.

Studieoversigt

Detaljeret beskrivelse

  • Investigators are going to enroll age-matched control group and measure the urinary NGF levels as a baseline value (30 males).
  • Investigators are going to enroll BPO patients group (DO group 50 and Non-DO group 50 patients).
  • Administration of the anti-cholinergic agents was reported to decrease urinary NGF levels. Investigators are going to try to avoid the effect of anti-muscarinic drugs.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

184

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

50 år til 80 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Han

Beskrivelse

Inclusion Criteria:

  • Male aged 50 yrs or greater
  • International prostatic symptom score >= 12
  • Bladder outlet obstruction confirmed by pressure-flow study (BOOI > 20)
  • Ability and willingness to correctly complete the micturition diary and questionnaire
  • Capable of understanding and having signed the informed consent form after full discussion of the research nature of the treatment and its risks and benefits

Exclusion Criteria:

  • Patients with urologic malignancies such as prostate cancer and bladder cancer
  • Patients underwent urethral, prostate surgery
  • Patients with urethral stricture or bladder diverticulum or bladder neck contracture
  • Any other condition which, in the opinion of the investigator, makes the patient unsuitable for inclusion

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: HoLEP group
Holmium Laser Enucleation of the Prostate (HoLEP)
Enucleation of the enlarged nodule of prostate and morcellation of the resected tissue.
Holmium laser enucleation and morcellation

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Tidsramme
Difference in the baseline urinary NGF level between patients with and without detrusor overactivity at 6 months after HoLEP procedure
Tidsramme: 6 months after HoLEP procedure
6 months after HoLEP procedure

Sekundære resultatmål

Resultatmål
Tidsramme
Difference in the IPSS (International Prostate Symptom Score) and uroflowmetry results between the patients with or without detrusor overactivity
Tidsramme: 6 months after HoLEP procedure
6 months after HoLEP procedure

Andre resultatmål

Resultatmål
Tidsramme
Difference in the serum PSA (Prostate Specific Antigen) level between the patients with or without detrusor overactivity
Tidsramme: 6 months after HoLEP procedure
6 months after HoLEP procedure

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Kyu-Sung Lee, M.D., Ph.D., Samsung Medical Center

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. februar 2013

Primær færdiggørelse (Faktiske)

1. november 2016

Studieafslutning (Faktiske)

1. januar 2017

Datoer for studieregistrering

Først indsendt

21. januar 2013

Først indsendt, der opfyldte QC-kriterier

29. januar 2013

Først opslået (Skøn)

31. januar 2013

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

2. december 2019

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

28. november 2019

Sidst verificeret

1. november 2019

Mere information

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Overaktiv Detrusor

Kliniske forsøg med Holmium Laser Enucleation of the Prostate (HoLEP)

3
Abonner