The Study of Ropivacaine Median Effective Concentration in Ultrasound-guided Supraclavicular Brachial Plexus Block

Status

UNKNOWN

Phases

Phase 4

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02323282

Enrollment

Registered

2014-12-23

Start date

2014-10-31

Completion date

2014-12-31

Last updated

2014-12-23

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

Conditions

Anesthesia

Keywords

Dose-response relationship, Drug

Brief summary

To determine the median effective concentration of ropivacaine hydrochloride for ultrasound-guided supraclavicular brachial plexus block. The result can provide reference for choosing appropriate drug concentration in clinical anesthesia.

Interventions

DRUGropivacaine

Study design

Allocation

Intervention model

SINGLE_GROUP

Masking

SINGLE (Subject)

Eligibility

Sex/Gender

ALL

Age

18 Years to 64 Years

Healthy volunteers

Yes

Inclusion criteria

* ASA I or II

Exclusion criteria

* upper limb paresthesia * allergic to local anesthetics * surgery history of clavicle * BMI\>30kg/m\^2

Design outcomes

Primary

Measure	Time frame	Description
the affection of nerve block	30 minutes	The anesthetic efficacy of five nerves, respectively named lateral antebrachial cutaneous nerve, medial cutaneous nerve of the forearm, radial nerve, median nerve, and ulnar nerve was assessed within 30 min after anesthesia. The next concentration of ropivacaine was adjusted according to the response of the previous patient using up-down sequential allocation.

Countries

China

Contacts

Primary ContactShan Yu

shanyu800302@126.com86-18930173658

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026