Completed PHASE4 INTERVENTIONAL 2-arm NCT04162834

Effect of Papaverine on Renal Artery Blood Flow Volume

Effect of Papaverine on Intraoperative Renal Artery Blood Flow Volume in Patients Undergoing Robot-assisted Partial Nephrectomy : a Randomized, Placebo-controlled Study

Sponsor: Asan Medical Center

Conditions Kidney Cancer

Interventions Normal saline Papaverine

Updated 9 times since 2019 Last updated: Apr 15, 2021 Started: Nov 21, 2019 Primary completion: Apr 15, 2021 Completion: Apr 15, 2021

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

A PHASE4 clinical study on Kidney Cancer, this trial is completed. The trial is conducted by Asan Medical Center and has accumulated 9 data snapshots since 2019. Oncology trials at this stage typically focus on safety, tolerability, and early efficacy signals.

Status Flow

Change History

9 versions recorded

Sep 2025 — Present [monthly]

Completed PHASE4
Sep 2024 — Sep 2025 [monthly]

Completed PHASE4
Jul 2024 — Sep 2024 [monthly]

Completed PHASE4
May 2021 — Jul 2024 [monthly]

Completed PHASE4

Status: Recruiting → Completed
Feb 2021 — May 2021 [monthly]

Recruiting PHASE4

▶ Show 4 earlier versions

Jan 2021 — Feb 2021 [monthly]

Recruiting PHASE4
Feb 2020 — Jan 2021 [monthly]

Recruiting PHASE4
Jan 2020 — Feb 2020 [monthly]

Recruiting PHASE4

Status: Not Yet Recruiting → Recruiting
Dec 2019 — Jan 2020 [monthly]

Not Yet Recruiting PHASE4

First recorded

Nov 2019

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Asan Medical Center

Data source: Asan Medical Center

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

Study Locations

• Seoul, South Korea