Unknown PHASE4 INTERVENTIONAL 2-arm NCT02011737

Naftopidil 75mg for Improving Clearance of Urinary Stones

The Effectiveness and Safety of Naftopidil 75mg for Improving Clearance of Ureteral and Renal Stones After Shockwave Lithotripsy: Prospective Randomized Controlled Study

Sponsor: Dong-A ST Co., Ltd.

Conditions Kidney Calculi Ureter Calculi

Interventions naftopidil 75mg

Updated 5 times since 2017 Last updated: Dec 10, 2013 Started: Feb 28, 2014 Primary completion: Feb 28, 2015 Completion: Apr 30, 2015

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This PHASE4 trial investigates Kidney Calculi and Ureter Calculi and is currently ongoing. Dong-A ST Co., Ltd. leads this study, which shows 5 recorded versions since 2014 — indicating limited longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

Change History

5 versions recorded

Sep 2025 — Present [monthly]

Unknown PHASE4
Sep 2024 — Sep 2025 [monthly]

Unknown PHASE4
Jul 2024 — Sep 2024 [monthly]

Unknown PHASE4

Status: Unknown Status → Unknown
Jan 2021 — Jul 2024 [monthly]

Unknown Status PHASE4
Jan 2017 — Jan 2021 [monthly]

Unknown Status PHASE4

First recorded

Feb 2014

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Dong-A ST Co., Ltd.
Samsung Medical Center

Data source: Samsung Medical Center

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

• Seoul, South Korea