NCT06555458

Brief Summary

Dexmedetomidine is often used for sedation procedures. It has also been shown to have a pain-protective effect. Researchers predicted that using dexmedetomidine for sedation in total knee arthroplasties performed under spinal anesthesia would reduce the frequency of rebound pain and pain scores.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
84

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Nov 2023

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 19, 2023

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 30, 2024

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 25, 2024

Completed
18 days until next milestone

First Submitted

Initial submission to the registry

August 12, 2024

Completed
3 days until next milestone

First Posted

Study publicly available on registry

August 15, 2024

Completed
Last Updated

August 19, 2024

Status Verified

August 1, 2024

Enrollment Period

4 months

First QC Date

August 12, 2024

Last Update Submit

August 16, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Rebound pain VAS scores and incidence of rebound pain

    Rebound pain-defined as transient acute postoperative pain within 12-24hrs that ensues following resolution of sensory blocked.

    48 hours after surgery

Study Arms (2)

Dexmedetomidine

EXPERIMENTAL

Patients will receive the standardized pre-op meds and spinal anesthetic. Once the patient's spinal is performed, patient will receive the following: Start with bolus of 0.4 microgram/kg over 10 minutes, and then infusion of 0.4 microgram/kg/hr infusion will be stopped after the last staple or suture is performed on the incision. Interventions: Drug: Dexmedetomidine

Drug: Dexmedetomidine

Saline

PLACEBO COMPARATOR

Patients will receive the standardized pre-op meds and spinal anesthetic. Once the spinal anesthetic is performed,patient will receive the same infusion rates as in the Dexmedetomidine arm, however with Normal Saline as a Placebo. Interventions: Drug: Normal Saline

Drug: Saline

Interventions

Patient group to be given dexmedetomidine

Dexmedetomidine
SalineDRUG

Patient group to be given salin

Saline

Eligibility Criteria

Age18 Years - 85 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Total Knee arthroplasty American Society of Anesthesiologist score of 1-3 Age 18-85 Elective total knee arthroplasty under spinal anesthetic.

You may not qualify if:

  • Situations in which spinal anesthesia is contraindicated
  • Advanced organ failure states(cardiac,hepatic,respiratuar or renal)
  • Pregnancy
  • BMI \> 40 kg/m\^2
  • Do not want to participate in the study
  • Younger than 18 or older than 85
  • Have bilateral total knee arthroplasty or resurgery
  • Develop an unexpected intraoperative surgical complication

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ankara Bilkent City Hospital

Ankara, ÇANKAYA, 06800, Turkey (Türkiye)

Location

MeSH Terms

Interventions

DexmedetomidineSodium Chloride

Intervention Hierarchy (Ancestors)

ImidazolesAzolesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsChloridesHydrochloric AcidChlorine CompoundsInorganic ChemicalsSodium Compounds

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 12, 2024

First Posted

August 15, 2024

Study Start

November 19, 2023

Primary Completion

March 30, 2024

Study Completion

July 25, 2024

Last Updated

August 19, 2024

Record last verified: 2024-08

Locations