Status:

COMPLETED

Study of a α1A Adrenoceptor Selective Antagonist Silodosin to Treat Severe Benign Prostatic Hyperplasia(BPH)

Lead Sponsor:

JW Pharmaceutical

Collaborating Sponsors:

Chonnam National University Hospital

Kangdong Sacred Heart Hospital

Conditions:

Benign Prostatic Hyperplasia

Eligibility:

MALE

50+ years

Phase:

PHASE4

Brief Summary

This clinical study is designed to evaluate the efficacy and safety of silodosin in a 12 week treatment of patients with severe urinary disorders associated with benign prostatic hyperplasia (BPH).

Eligibility Criteria

Inclusion

  • Is at least 50 years old
  • Has a urinary disturbance associated with severe BPH and has a total IPSS score 20 or higher
  • Has a QoL score of 3 or higher
  • Has a urine volume of 120mL or greater and a Qmax of below 15mL/sec
  • Has a PRV of below 100mL
  • Voluntarily decides to participate in this trial and sign with informed consent form

Exclusion

  • Has been administered silodosin
  • Has been administered an α1A-adrenoceptor blocker within one month
  • Has been prescribed antiandrogens except 5α-reductase inhibitors within a year
  • Has had phytotherapy within 3 months
  • Has had prostatectomy
  • Has had intrapelvic radiation therapy
  • Has had transurethral microwave hyperthermia of transurethral needle ablation
  • Is suspected to have implications that are likely to affect urine passing such as neurogenic bladder, bladder calculus or active urinary tract infection (UTI).
  • Is conducting self-catherterization
  • Has a renal impairment with a serum creatinine of 2.0mg/dL or greater
  • Has severe hepatic disorders (hepatic insufficiency, cirrhosis, jaundice, hepatoma) or has a total bilirubin of 2.5mg/dl or higher or has AST/ALT 2.5 times higher than the normal (upper) level
  • Has suffered from a severe arrhythmia, cardiac failure, cardiac infarction, unstable angina, cerebral infarction within 6 months
  • Has experienced allergy to α1 receptor blockers
  • Has orthostatic hypotension around the time of Screening Visit
  • Has participated in other clinical trials within 8 weeks prior to Screening Visit
  • Has a Prostate specific antigen(PSA) of higher 10ng/mL or has been diagnosed with tumor identified by a biopsy even though he has a PSA of lower 10ng/mL (Patient who has been administered 5α-reductase inhibitors for more than 3 months are presumed to have 2 times higher than their actual PSA levels)
  • Has been taking unstable dosing of 5α-reductase inhibitors like finasteride or dutasteride for the past 3 months or is expected to change the dosage during the trial.

Key Trial Info

Start Date :

December 1 2010

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

September 1 2011

Estimated Enrollment :

100 Patients enrolled

Trial Details

Trial ID

NCT01259531

Start Date

December 1 2010

End Date

September 1 2011

Last Update

March 30 2012

Active Locations (1)

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1

Seoul national university hospital

Seoul, South Korea