Unknown NA INTERVENTIONAL 2-arm NCT04457557

Local Anesthetic Concentration and Rebound Pain

Evaluation of the Effect of Local Anesthetic Concentration on Rebound Pain After Interscalene Block for Shoulder Surgery

Sponsor: Ajou University School of Medicine

Conditions Rebound Pain

Interventions Reduced concentration of local anesthetic (ropivacaine) Usual concentration of local anesthetic (ropivacaine)

Updated 9 times since 2020 Last updated: Sep 28, 2022 Started: Jul 10, 2020 Primary completion: Jun 30, 2023 Completion: Jul 31, 2023

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

A NA clinical study on Rebound Pain, this trial is ongoing. The trial is conducted by Ajou University School of Medicine and has accumulated 9 data snapshots since 2020. Longitudinal tracking of this trial contributes to a broader understanding of treatment development timelines.

Status Flow

Change History

9 versions recorded

Sep 2025 — Present [monthly]

Unknown NA
Oct 2024 — Sep 2025 [monthly]

Unknown NA

Status: Recruiting → Unknown
Sep 2024 — Oct 2024 [monthly]

Recruiting NA
Jul 2024 — Sep 2024 [monthly]

Recruiting NA
Oct 2022 — Jul 2024 [monthly]

Recruiting NA

▶ Show 4 earlier versions

Mar 2022 — Oct 2022 [monthly]

Recruiting NA
Jan 2021 — Mar 2022 [monthly]

Recruiting NA
Sep 2020 — Jan 2021 [monthly]

Recruiting NA

Status: Not Yet Recruiting → Recruiting
Aug 2020 — Sep 2020 [monthly]

Not Yet Recruiting NA

First recorded

Jul 2020

Trial started

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

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Ajou University School of Medicine

Data source: Ajou University School of Medicine

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

Study Locations

• Suwon, South Korea