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The efficacy and safety of the combination of terazosin and tadalafil in men with lower urinary tract symptoms due to benign prostatic hyperplasia: a randomized, active controlled, multi-center clinical trial

The efficacy and safety of the combination of terazosin and tadalafil in men with lower urinary tract symptoms due to benign prostatic hyperplasia: a randomized, active controlled, multi-center clinical trial

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
CRIS
Registry ID
KCT0004492
Enrollment
124
Registered
2019-12-04
Start date
2019-12-23
Completion date
Unknown
Last updated
2019-12-16

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

Conditions

None listed

Interventions

Drug : 1) Experiment group: oral administration of terazosin 5mg + tadalafil 5mg QD for 12 weeks 2) Control group: oral administration of tadalafil 5mg QD for 12 weeks

Sponsors

Kangdong Sacred Heart Hospital
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: 1) Men over 45 years old 2) Patients diagnosed with lower urinary tract symptoms due to benign prostatic hyperplasia 3) Patients whose maximum urinary flow rate Qmax is from 5 to 15 mL/sec at Visit 2 4) Patients who has minimum voided volume> 125mL at Visit 2 5) Patients whose PSA(Prostate specific antigen) = 4.0ng/mL factor at Visit 1(except 4.0ng/mL is negative if biopsy results) 6) Patients whose prostate hyperplasia has been confirmed by rectal examination at Visit 1 7) Patients who has a fixed relationship with one female partner who can maintain a relationship during the examination 8) Patients who can have sexual intercourse attempts at least 4 times during a four-week free run-in period, once per day on different days. 9) After four weeks of free run-in, both of the following criteria are met:    - Total IPSS score = 13 points    - IIEF-EF domain = 24 points, and items 3 and 4 of IIEF are 3 points 10) Patients who understand the clinical trial's process and signed the consent voluntarily

Exclusion criteria

Exclusion criteria: 1) Patients have other conditions that can cause lower urinary tract symptoms other than prostatic hyperplasia: prostate cancer, lower urinary tract cancer, including bladder cancer, neurogenic bladder, lower urinary tract infection, urethral stricture, bladder stenosis neck contracture, prostatitis, etc. 2) Patients who have a PVR (post void residual volume) measured at Visit 2 300mL or more. 3) Patients had or have suspected orthostatic hypotension, dizziness, dizziness, loss of consciousness, fainting. 4) Patients who have undergone surgery on the Urinary tract, such as the prostate, urethra, or bladder, or invasive to the prostate for the treatment of other prostates, or who have been planned during clinical trials. 5) Patients who have an anatomic malformation of the penis or have a history of penile anorexia due to medication. 6) Patients who have had pelvic surgery within 6 months before screening. 7) Patients with hypersensitivity to the components of the study drug or sulfa drug. 8) Patients who had acute urinary retention within 4 weeks prior to screening. 9) Patients currently suspected or diagnosed with lower urinary tract stones or bladder stones. 10) Patients with genetic problems such as galactose intolerance, Lapp lactose deficiency, or glucose-galactose malabsorption. 11) Patients with uncontrolled diabetics.

Design outcomes

Primary

MeasureTime frame
Total IPSS change after 12 weeks compared to Baseline(Visit 2)

Secondary

MeasureTime frame
Total IPSS change after 4 weeks compared to Baseline(Visit 2);Changes in IPSS sub score after 4 and 12 weeks from baseline: Storage, voiding;Changes in IPSS QoL after 4 and 12 weeks compared to Baseline(Visit2);Changes in Qmax after 4 and 12 weeks from baseline(Visit 2);Changes in PVR after 4 and 12 weeks compared to Baseline(Visit 2);PGIC, CGIC (Patient and Clinician Global Impression of Change) at end point;Total change in International Index of Erectile Function sum of questions (IIEF) after 4 and 12 weeks from Visit 2;Changes in IIEF-IS (Intercourse satisfaction, 6 ~ 8), OS (Overall satisfaction, 13 ~ 14), OF (Orgasmic function, 9, 10) domain after 4 and 12 weeks;IIEF-EF domain (Erectile function, 1 ~ 5 & 15) 4 weeks after baseline (Visit 2) Change;Changes in scores 3 and 4 of the IIEF after 12 weeks compared to Visit 2;Response rate and improvement rate of scores 3 and 4 of IIEF after 12 weeks compared to Visit 2

Countries

Korea, Republic of

Contacts

Public ContactDaeYeol Yang

Kangdong Sacred Heart Hospital

yang1408a@daum.net+82-2-2225-2938

Outcome results

None listed

Source: CRIS (via WHO ICTRP) · Data processed: Feb 4, 2026