- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03643822
Adjuncts for Adductor Block: Dexamethasone,Dexmedetomidine, or Combination to Reduce Pain (AADDCToR)
Adjuncts for Adductor Block: Dexamethasone,Dexmedetomidine, or Combination to Reduce Pain. A Randomized Controlled Comparison of the Analgesic Effects Following ACL Repair
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Anterior cruciate ligament repair (ACLR) is a surgical procedure of the knee associated with moderate to severe postoperative pain lasting beyond 24 hours following surgery. Provision of adequate postoperative analgesia is a prerequisite for performing this procedure on outpatient basis. By virtue of their analgesic effects, peripheral nerve blocks (PNBs), such as adductor canal block (ACB), have thus become part of the care standard for this surgical procedure.
Though ACB provides effective pain relief, the duration of analgesia associated with this block is limited to eight hours postoperatively. As a result, patients having outpatient ACLR may experience severe pain following discharge, require additional opioid analgesics to control their pain, and even visit the emergency department for acute pain management. Consequently, perioperative care for the young outpatient population undergoing this procedure is an area where improvement is needed.
Mixing adjuncts with local anesthetics can prolong the duration of analgesia of PNBs; both dexmedetomidine and dexamethasone have been shown to effectively extend the duration of PNB analgesia by 60% and 80% hours, respectively. The use of dexamethasone is wide spread, and dexmedetomidine is progressively gaining popularity.
At Toronto Western Hospital, the use of adjuncts is left to the discretion of the anesthesiologists administering PNB; and dexamethasone is occasionally used to prolong block duration. The alternative approach to prolonging block duration is using ambulatory ACB catheters, but this is an expensive option that is applicable to select patients, and it is not available at the TWH.
Importantly, these adjuncts seem to exert their effect through independent mechanisms; thus there may be an advantage to combining adjuncts together. Further prolongation of the duration of analgesia is desirable, as the prolongation of block duration associated with each of these two adjuncts, alone, falls short of the duration of worst postoperative pain following ACLR. Consequently, the investigators aimed to explore whether the combination of these two adjuncts offers an incremental benefit over either of them alone, by examining their potential additive or synergistic effect.
This randomized controlled trial compares the effect of using perineural dexamethasone, dexmedetomidine, and their combination to Control on the duration of postoperative analgesia in patients having ambulatory ACLR with ACB.
Study Type
Enrollment (Anticipated)
Phase
- Phase 4
Contacts and Locations
Study Locations
-
-
Ontario
-
Toronto, Ontario, Canada, M5S 1B2
- Women's College Hospital
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- English Speaking
- ASA 1-3 patients
- BMI <40
Exclusion Criteria:
- Refusal or inability to provide informed consent
- Any contraindication to regional anesthesia including coagulopathy or bleeding diathesis, allergy to local anesthetics, infection, nerve injury or malignancy at the site of the block
- History of alcohol/drug dependence
- History of long term opioid intake or chronic pain disorder
- History of preexisting neuropathy in the operative leg
- History of significant psychiatric conditions that may affect patient assessment
- Inability to understand the informed consent and demands of the study
- Allergy to any of the components of the multimodal analgesic regimen
- Revision of ACL repair
- Diabetes
- Significant bradycardia (baseline heart rate ≤ 40 beats per minute)
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Other
- Allocation: Randomized
- Interventional Model: Factorial Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Dexamethasone vs. Control comparison
Freezing + dexamethasone(4mg)+1 ml of saline
|
To guarantee rapid onset as well as effective postoperative analgesia, a 20 mL volume of local anesthetic has been selected for performing the ACB.
The block solution will be a 20 ml volume for all groups, prepared by mixing 18 ml of ropivacaine 0.5% mixed with an additional 2 ml prepared according to the randomization.
Other Names:
Control/Placebo intervention
|
Active Comparator: Dexmedetomidine vs. Control comparison
Freezing + dexmedetomidine(50ug) + 1.5 ml of saline
|
Control/Placebo intervention
To guarantee rapid onset as well as effective postoperative analgesia, a 20 mL volume of local anesthetic has been selected for performing the ACB.
The block solution will be a 20 ml volume for all groups, prepared by mixing 18 ml of ropivacaine 0.5% mixed with an additional 2 ml prepared according to the randomization.
Other Names:
|
Active Comparator: Dexamethasone and Dexmedetomidine
Freezing+dexamethasone(4mg)+dexmedetomidine(50ug) + 0.5 ml of saline
|
To guarantee rapid onset as well as effective postoperative analgesia, a 20 mL volume of local anesthetic has been selected for performing the ACB.
The block solution will be a 20 ml volume for all groups, prepared by mixing 18 ml of ropivacaine 0.5% mixed with an additional 2 ml prepared according to the randomization.
Other Names:
Control/Placebo intervention
To guarantee rapid onset as well as effective postoperative analgesia, a 20 mL volume of local anesthetic has been selected for performing the ACB.
The block solution will be a 20 ml volume for all groups, prepared by mixing 18 ml of ropivacaine 0.5% mixed with an additional 2 ml prepared according to the randomization.
Other Names:
|
Sham Comparator: Control Group-Placebo
Freezing + 2ml saline
|
Control/Placebo intervention
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Oral opioid consumption
Time Frame: time of the block to 24 hours after
|
Cumulative 24 hour oral morphine equivalent consumption
|
time of the block to 24 hours after
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Intra-operative opioid consumption
Time Frame: Duration of surgery: From start of surgery (defined as anesthesia start) to end of surgery (defined as anesthesia end)
|
Cumulative intra-operative opioid consumption in morphine equivalent
|
Duration of surgery: From start of surgery (defined as anesthesia start) to end of surgery (defined as anesthesia end)
|
PACU opioid consumption
Time Frame: From time of arrival (hh:mm) in PACU to time of PACU discharge (hh:mm) assessed up to 24 hours
|
Cumulative oral morphine equivalent consumption during time stayed in PACU
|
From time of arrival (hh:mm) in PACU to time of PACU discharge (hh:mm) assessed up to 24 hours
|
Time to first analgesic request in PACU
Time Frame: From time of arrival in PACU (hh:mm) up to time of PACU discharge (hh:mm) assessed in minutes up to 24 hours ((e.g. patient arrives in PACU 12:00 then patient is given first pain medication in PACU at 12:30; Time to first analgesic request = 30 min)
|
The time (hh:mm) first pain medication given in PACU
|
From time of arrival in PACU (hh:mm) up to time of PACU discharge (hh:mm) assessed in minutes up to 24 hours ((e.g. patient arrives in PACU 12:00 then patient is given first pain medication in PACU at 12:30; Time to first analgesic request = 30 min)
|
Time to PACU discharge
Time Frame: From time of arrival (hh:mm) in PACU to time discharged (hh:mm) from PACU assessed in minutes (e.g. patient arrives in PACU 12:00 then patient discharged from PACU 12:30; Time to PACU discharge = 30 min)
|
how fast patient recovered and discharged from PACU (measured in minutes)
|
From time of arrival (hh:mm) in PACU to time discharged (hh:mm) from PACU assessed in minutes (e.g. patient arrives in PACU 12:00 then patient discharged from PACU 12:30; Time to PACU discharge = 30 min)
|
Visual Analogue Scale-Pain scores - minimum score = 0 and maximum score = 10
Time Frame: discharge from hospital to 2 days after surgery
|
pain scores at 0, 2, 4, 6, 12, 24, 36, and 48 hours postoperatively
|
discharge from hospital to 2 days after surgery
|
Opioid consumption
Time Frame: discharge from hospital to 2 days after surgery
|
analgesic consumption at 6, 12, 24, 36, and 48 hours postoperatively
|
discharge from hospital to 2 days after surgery
|
Risk of block-related complications
Time Frame: one week post operatively
|
adverse symptoms related to the block
|
one week post operatively
|
Risk of opioid-related side effects
Time Frame: two week post operatively
|
adverse symptoms related to oral pain medication consumption
|
two week post operatively
|
Quality of recovery-15 (QoR15) (0-10, where 0 = none of the time [poor] and 10 = all of the time [excellent]
Time Frame: discharge from hospital to 24 hours after surgery
|
measured using the Quality of recovery-15 at 12 and 24 hours postoperatively
|
discharge from hospital to 24 hours after surgery
|
Time to hospital discharge
Time Frame: From time of end of surgery [(hh:mm) defined as anesthesia end] up to time of hospital discharge (hh:mm) assessed in minutes up to 24 hours (e.g. surgery ends 12:00, then patient discharged from the hospital at 13:00; Time to hospital discharge = 60min
|
Measures of recovery (how many minutes from end of surgery to discharge from hospital)
|
From time of end of surgery [(hh:mm) defined as anesthesia end] up to time of hospital discharge (hh:mm) assessed in minutes up to 24 hours (e.g. surgery ends 12:00, then patient discharged from the hospital at 13:00; Time to hospital discharge = 60min
|
Time to first analgesic request at home (after discharge)
Time Frame: discharge from hospital to 24 hours after surgery
|
first time(hh:mm) patient took an oral pain medication
|
discharge from hospital to 24 hours after surgery
|
Visual Analogue Scale-Satisfaction scores - where 0 = not satisfied and 10 = very satisfied
Time Frame: evaluated at 12 and 24 hours post-surgery
|
A visual analogue scale used to measure how satisfied the study participant is with the pain relief received for shoulder surgery
|
evaluated at 12 and 24 hours post-surgery
|
Presence/absence of nerve block complications
Time Frame: time from block onset to 2 days,2 weeks after surgery
|
adverse symptoms related to the block
|
time from block onset to 2 days,2 weeks after surgery
|
Collaborators and Investigators
Sponsor
Collaborators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Wounds and Injuries
- Leg Injuries
- Knee Injuries
- Anterior Cruciate Ligament Injuries
- Physiological Effects of Drugs
- Adrenergic Agents
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Central Nervous System Depressants
- Autonomic Agents
- Peripheral Nervous System Agents
- Enzyme Inhibitors
- Analgesics
- Sensory System Agents
- Analgesics, Non-Narcotic
- Anti-Inflammatory Agents
- Antineoplastic Agents
- Antiemetics
- Gastrointestinal Agents
- Glucocorticoids
- Hormones
- Hormones, Hormone Substitutes, and Hormone Antagonists
- Antineoplastic Agents, Hormonal
- Protease Inhibitors
- Adrenergic alpha-2 Receptor Agonists
- Adrenergic alpha-Agonists
- Adrenergic Agonists
- Hypnotics and Sedatives
- Dexamethasone
- Dexamethasone acetate
- BB 1101
- Dexmedetomidine
Other Study ID Numbers
- 2018-0164-B
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on ACL Injury
-
Sichuan Province Orthopetic HospitalCompleted
-
Copenhagen University Hospital, HvidovreUniversity of Copenhagen; University College Copenhagen; Team DenmarkActive, not recruitingACL Injury PreventionDenmark
-
University Hospital, Basel, SwitzerlandRecruitingAnterior Cruciate Ligament (ACL) InjurySwitzerland
-
University of ManitobaUnknown
-
Università degli studi di Roma Foro ItalicoNot yet recruitingAnterior Cruciate Ligament Injuries | Anterior Cruciate Ligament Rupture | ACL Injury | ACL Tear | ACL Sprain
-
Vita CareJohnson & JohnsonRecruitingKnee Injuries | ACL Injury | Sports Injury | ACL TearBrazil
-
OrthoCarolina Research Institute, Inc.Enrolling by invitationACL Injury | ACL Tear | ACL - Anterior Cruciate Ligament DeficiencyUnited States
-
Ottawa Hospital Research InstituteUnknown
-
Vanderbilt University Medical CenterThe Cleveland ClinicCompletedACL Injury | ACL Tear | ACL - Anterior Cruciate Ligament Rupture | ACL SprainUnited States
-
St. Olavs HospitalHaraldsplass Deaconess Hospital; Lovisenberg Diakonale HospitalCompletedSurgery | ACL | ACL Injury | Cruciate Ligament Rupture | ACL TearNorway
Clinical Trials on Dexamethasone 4mg
-
University of BelgradeCompleted
-
Universidade Federal de PernambucoCompletedDiabetic Macular EdemaBrazil
-
Philip Morris Products S.A.Active, not recruiting
-
Cairo UniversityUnknown
-
Bio-Thera SolutionsCompletedWet Age-related Macular DegenerationChina
-
SunovionCompleted
-
Gujranwala medical college District Headquarters...RecruitingCommon Bile Duct Diseases | Common Bile Duct Calculi | Common Bile Duct Stricture | Common Bile Duct Neoplasms | Common Bile Duct DilatationPakistan
-
Cedars-Sinai Medical CenterTerminatedDexamethasone Effect on miRNA Profile in Healthy HumansUnited States
-
University Hospital TuebingenCompleted
-
Hospital for Special Surgery, New YorkCompletedPain | Shoulder ArthroscopyUnited States