Ignite Creation Date:
2025-12-24 @ 7:02 PM
Ignite Modification Date:
2026-02-20 @ 4:44 PM
Study NCT ID:
NCT02909257
Status:
TERMINATED
Last Update Posted:
2020-05-14
First Post:
2016-09-19
Is Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Motor-Sparing Femoral Nerve Block Dose
Sponsor:
University of Chile
Organization:
Study Overview
Official Title:
Minimum Effective Concentration of Bupivacaine for Motor-Sparing Femoral Nerve Block
Status:
TERMINATED
Status Verified Date:
2020-05
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
inadequate methodology to determine primary outcome
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
Femoral nerve blocks are commonly used to provide pain control for total knee replacement, anterior cruciate ligament (ACL) reconstruction. Commonly employed local anesthetic concentrations result in motor block of the quadriceps and constitute an inherent risk factor for patient fall.
The aim of this study is to determine the minimum effective concentration of bupivacaine in 90 % of patients (MEC90) required for a motor-sparing, successful sensory block of the femoral nerve.
The aim of this study is to determine the minimum effective concentration of bupivacaine in 90 % of patients (MEC90) required for a motor-sparing, successful sensory block of the femoral nerve.
Detailed Description:
With the approval of Ethics Committee of the University of Chile Clinical Hospital, approximately 60 patients undergoing ACL repair or TKR will be recruited. All blocks will be conducted preoperatively in an induction room.Dose assignation will be done using an up-and-down sequential method, where the dose of each subsequent patient depends on the response of the previous patient, called the Biased Coin Design.
The assignment of each subsequent concentration will be based on the response of the previous patient.As soon as we recruit 45 patients with random dose assignment, we will terminate the enrollment procedure.
The injectate will be prepared and administered by a research assistant using syringes connected to the block needle. The operator and the patient will be blinded to the concentration injected.
The assignment of each subsequent concentration will be based on the response of the previous patient.As soon as we recruit 45 patients with random dose assignment, we will terminate the enrollment procedure.
The injectate will be prepared and administered by a research assistant using syringes connected to the block needle. The operator and the patient will be blinded to the concentration injected.
Study Oversight
Has Oversight DMC:
True
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: