NCT07259772

Brief Summary

This study compares two local anesthetics, ropivacaine and lidocaine, for patients undergoing arteriovenous fistula surgery. Arteriovenous fistula is the preferred vascular access for end-stage kidney disease patients needing hemodialysis. In this clinical trial, patients are randomly assigned to receive either ropivacaine or lidocaine for local anesthesia during the surgery. Researchers are evaluating which medication provides better pain control and improves surgical outcomes. The study is examining:

  • Pain levels during and after surgery
  • Surgery duration
  • Need for additional pain medication
  • Surgical complications
  • Fistula development over time
  • Long-term fistula function at 1 year and 5 years This is a double-blind study, meaning neither patients nor surgeons know which medication is being used. The study is currently ongoing with active patient follow-up and is expected to be completed in June 2026. Patients are being followed for up to 5 years to monitor their long-term progress. This research may help doctors choose the best local anesthetic for arteriovenous fistula surgery, potentially leading to better pain control and improved long-term outcomes for kidney disease patients.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at P25-P50 for phase_4

Timeline
1mo left

Started Apr 2019

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress99%
Apr 2019Jun 2026

Study Start

First participant enrolled

April 10, 2019

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2021

Completed
4.6 years until next milestone

First Submitted

Initial submission to the registry

November 21, 2025

Completed
11 days until next milestone

First Posted

Study publicly available on registry

December 2, 2025

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2026

Expected
Last Updated

December 9, 2025

Status Verified

December 1, 2025

Enrollment Period

2 years

First QC Date

November 21, 2025

Last Update Submit

December 2, 2025

Conditions

Keywords

RopivacaineLocal AnesthesiaInfiltration AnesthesiaArteriovenous Fistula SurgeryHemodialysis AccessRandomized Controlled TrialVascular AccessLidocainePain Control

Outcome Measures

Primary Outcomes (5)

  • Intraoperative Pain Scores

    Pain intensity assessed using 10-point Visual Analog Scale (0 = no pain, 10 = worst pain imaginable)

    During surgery (at the end of the procedure)

  • Operative Time

    Duration from skin incision to wound closure (minutes)

    During surgery

  • Need for Supplemental Anesthesia

    Requirement for additional anesthetic doses due to patient-reported intolerable pain after initial infiltration

    During surgery

  • Postoperative Pain Scores

    Pain intensity assessed using 10-point Visual Analog Scale

    24 hours postoperatively

  • Incidence of Postoperative Vasospasm

    Development of arteriovenous fistula tremor reduction or absence within 48 hours postoperatively

    48 hours postoperatively

Secondary Outcomes (5)

  • Surgical Success Rate

    Immediately after surgery

  • Postoperative Complications

    24 hours postoperatively

  • Fistula Maturation at 8 Weeks

    8 weeks postoperatively

  • Primary Unassisted Patency at 1 Year

    1 year postoperatively

  • Primary Unassisted Patency at 5 Years

    5 years postoperatively

Study Arms (2)

Ropivacaine Group

EXPERIMENTAL

Patients receiving 0.375% ropivacaine (75 mg in 20 mL) for local infiltration anesthesia

Drug: Ropivacaine

Lidocaine Group

ACTIVE COMPARATOR

Patients receiving 0.67% lidocaine (100 mg in 15 mL) for local infiltration anesthesia

Drug: Lidocaine

Interventions

0.375% ropivacaine solution (75 mg total dose in 20 mL volume) administered as local infiltration anesthesia for arteriovenous fistula surgery

Ropivacaine Group

0.67% lidocaine solution (100 mg total dose in 15 mL volume) administered as local infiltration anesthesia

Lidocaine Group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adult patients (aged ≥18 years) scheduled for primary radiocephalic arteriovenous fistula creation
  • Diagnosed with end-stage renal disease requiring hemodialysis
  • Willing and able to provide written informed consent

You may not qualify if:

  • History of arteriovenous fistula on the ipsilateral limb
  • Impaired communication abilities or inability to complete questionnaires due to language barriers, or missing essential data
  • Preoperative ultrasound findings of:
  • Radial or brachial artery diameter \<1.8 mm
  • Cephalic vein diameter \<2 mm at the wrist or \<3 mm at the elbow (without tourniquet application)
  • Known allergy to local anesthetics (ropivacaine or lidocaine)
  • Coagulopathy or bleeding disorders
  • Local infection at the planned anesthesia or surgical site
  • Severe peripheral neuropathy or neurological disorders affecting upper limb function
  • Significant thrombosis or severe stenosis in the proximal major veins or central veins of the limb
  • Pregnancy or breastfeeding
  • Participation in another clinical trial within 30 days

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Lianyungang First People's Hospital

Lianyungang, Jiangsu, 222000, China

Location

Related Publications (3)

  • Budharapu A, Sinha R, Uppada UK, Subramanya Kumar AV. Ropivacaine: a new local anaesthetic agent in maxillofacial surgery. Br J Oral Maxillofac Surg. 2015 May;53(5):451-4. doi: 10.1016/j.bjoms.2015.02.021. Epub 2015 Mar 24.

    PMID: 25818492BACKGROUND
  • Lok CE, Huber TS, Lee T, Shenoy S, Yevzlin AS, Abreo K, Allon M, Asif A, Astor BC, Glickman MH, Graham J, Moist LM, Rajan DK, Roberts C, Vachharajani TJ, Valentini RP; National Kidney Foundation. KDOQI Clinical Practice Guideline for Vascular Access: 2019 Update. Am J Kidney Dis. 2020 Apr;75(4 Suppl 2):S1-S164. doi: 10.1053/j.ajkd.2019.12.001. Epub 2020 Mar 12.

    PMID: 32778223BACKGROUND
  • Schmidli J, Widmer MK, Basile C, de Donato G, Gallieni M, Gibbons CP, Haage P, Hamilton G, Hedin U, Kamper L, Lazarides MK, Lindsey B, Mestres G, Pegoraro M, Roy J, Setacci C, Shemesh D, Tordoir JHM, van Loon M, Esvs Guidelines Committee, Kolh P, de Borst GJ, Chakfe N, Debus S, Hinchliffe R, Kakkos S, Koncar I, Lindholt J, Naylor R, Vega de Ceniga M, Vermassen F, Verzini F, Esvs Guidelines Reviewers, Mohaupt M, Ricco JB, Roca-Tey R. Editor's Choice - Vascular Access: 2018 Clinical Practice Guidelines of the European Society for Vascular Surgery (ESVS). Eur J Vasc Endovasc Surg. 2018 Jun;55(6):757-818. doi: 10.1016/j.ejvs.2018.02.001. Epub 2018 May 2. No abstract available.

    PMID: 29730128BACKGROUND

MeSH Terms

Conditions

Kidney Failure, ChronicAgnosia

Interventions

RopivacaineLidocaine

Condition Hierarchy (Ancestors)

Renal Insufficiency, ChronicRenal InsufficiencyKidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and SymptomsPerceptual DisordersNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesSigns and Symptoms

Intervention Hierarchy (Ancestors)

AnilidesAmidesOrganic ChemicalsAniline CompoundsAminesAcetanilides

Study Officials

  • Liyuan Zhang

    Lianyungang First People's Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
This is a double-blind study where both patients and surgeons are blinded to the intervention. The anesthetic preparations are performed by resident physicians, circulating nurses, and scrub nurses who are not involved in outcomes assessment. The allocation assignments are concealed in sequentially numbered, opaque, sealed envelopes that are opened immediately prior to anesthesia administration.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: This is a two-arm parallel group randomized controlled trial comparing ropivacaine versus lidocaine for local infiltration anesthesia in arteriovenous fistula surgery. Participants are randomly assigned to one of two treatment groups and remain in that group throughout the study period.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 21, 2025

First Posted

December 2, 2025

Study Start

April 10, 2019

Primary Completion

March 31, 2021

Study Completion (Estimated)

June 1, 2026

Last Updated

December 9, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will share

De-identified individual participant data that underlie the results reported in publications will be shared, including demographic data, baseline characteristics, primary and secondary outcome measures, and safety data.

Shared Documents
STUDY PROTOCOL, SAP, ICF
Time Frame
IPD and supporting information will become available 6 months after publication of the primary results and will be accessible for 5 years.
Access Criteria
Data will be available to researchers who provide a methodologically sound proposal for use in achieving the goals of the approved proposal. Proposals should be directed to the corresponding author. Requestors will need to sign a data access agreement.

Locations