Skip to content

Efficacy of the escalating dose of naftopidil for patients with benign prostatic enlargement complicated by overactive bladder

Efficacy of the escalating dose of naftopidil for patients with benign prostatic enlargement complicated by overactive bladder - Efficacy of naftopidil for BPH/OAB patients

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000020031
Enrollment
150
Registered
2015-12-02
Start date
2010-03-01
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Benign prostatic hyperplasia

Interventions

the intake of naftopidil

Sponsors

Department of Urology Nagoya University Graduate School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: The inclusion criteria were as follows: Total International Prostate Symptom Score (IPSS) > 8; IPSS-QOL score > 3; total OAB symptom scores (OABSS) > 3; urinary urgency episodes> 1 per week; prostate volume > 25 mL as determined based on transabdominal ultrasonography; maximum urinary flow rate (Qmax) < 15 mL/sec at voided volume of > 100 mL; and residual urine < 150 mL; age > 50 years.

Exclusion criteria

Exclusion criteria: Patients were excluded if they received oral treatment with alpha1-blockers, anticholinergic agents, 5-alpha reductase inhibitor (5-ARI), antidepressants, anti-anxiety agents, or sex hormonal agents; had neurogenic bladder dysfunction, bladder calculi, or active urinary tract infection; and had severe cardiac disease, renal dysfunction (serum creatinine level > 2 mg/dL), and hepatic dysfunction (aspartate and alanine aminotransferase concentrations more than twice the normal values).

Design outcomes

Primary

MeasureTime frame
To investigate the improvement of overactive bladder by escalating the dose of naftopidilfor patients with benign prostatic enlargement complicated by overactive bladder

Countries

Japan

Contacts

Public ContactMatsukawa Yoshihisa

Nagoya University Graduate School of Medicine Department of Urology

yoshi44@med.nagoya-u.ac.jp+81-52-744-2985

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026