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Lower Limb SurgeriesNCT05041270

Epidural Nalbuphine Versus Dexmedetomidine as Adjuvants to Bupivacaine in Lower Limb Surgeries

A study testing normal saline, Dexmedetomidine and Nalbuphine in people with Lower Limb Surgeries, run by Zagazig University at 1 site in Egypt.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Combined spinal epidural anesthesia (CSE) with bupivacaine alone is not sufficient to cover pain sequel during lower limb surgeries. Previous studies used addition of either Nalbuphine or dexmedetomidine to bupivacaine in epidural anesthesia giving a good result in pain control. Read more about this study

Who is it for?
Ages 21 to 60 years
Conditions the study is for
Lower Limb Surgeries
What is being tested?
normal saline, Dexmedetomidine and Nalbuphine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
23 participants
Where
1 siteEgypt
Study dates
1 Oct 2021to 15 May 2022
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 21 to 60 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • patient acceptance.
  • BMI 25-29.9 kg/m2.
  • ASA I and ASA II.
  • Scheduled for elective lower limb orthopedic surgeries under (CSE) block.

Who cannot join

  • Patient with known allergy to study drugs,
  • Patients suffering from severe chronic diseases (cardiac, renal, hepatic and neurological or diabetes),
  • Patients with infection at the site of spinal-epidural block,
  • Drug addict patients,
  • Patients on long term steroid therapy,
  • Patients with abnormalities in vertebral spine,
  • Mentally retarded or uncooperative patients,
  • Patients receive anti-coagulant therapy or suspected coagulopathy.

Trial locations and contacts

1 site in 1 country.

Egypt1 site
  • faculty of medicine, Zagazig university

    Zagazig, Elsharqya, 44519

Other trials in Egypt

About this study

Official title: Epidural Nalbuphine Versus Dexmedetomidine as Adjuvants to Bupivacaine in Lower Limb Surgeries Under Combined Spinal-epidural Anesthesia

Combined spinal epidural anesthesia (CSE) with bupivacaine alone is not sufficient to cover pain sequel during lower limb surgeries.

Previous studies used addition of either Nalbuphine or dexmedetomidine to bupivacaine in epidural anesthesia giving a good result in pain control.

In this study the investigators will evaluate and compare the addition of either Nalbuphine or dexmedetomidine to bupivacaine in epidural anesthesia to evaluate the analgesic efficacy of either drug.

Read the detailed description

Surgical patients need adequate and effective intraoperative anesthesia and postoperative analgesia. Neuroaxial block including lower limb spinal and epidural blocks have a long history of effective anesthesia and lower limb pain relief. Spinal anesthesia is a simple method requiring small dose of local anesthetic agent to give immediate and effective sensory and motor block. But one of its major side effects is hypotension and difficulty in controlling the level of the block [1]. Meanwhile, epidural anesthesia is a safe, well-practiced, not expensive neuroaxial block technique that provides intraoperative anesthesia and postoperative analgesia. So, the combined spinal epidural block (CSE) aims to achieve intense sensory and motor anesthesia and prolong the duration of analgesia intraoperative extending to postoperative period [2].

Neuroaxial anesthesia and analgesia provide perfect analgesic effect by inhibiting nociceptive transmission from peripheral to central neuronal system, but this advantage limited by short half-life of the current local anesthetics. Bupivacaine is a local anesthetic which belongs to amide group of anesthetic agents that has been widely used for local infiltration, peripheral nerve block, spinal and epidural anesthesia and despite relatively long duration of action, still has insufficient time for postoperative analgesia [3].

Several neuroaxial adjuvants such as (opioids, dexamethasone, magnesium sulphate, midazolam and dexmedetomidine) can be added to local anesthetics to prolong its duration of anesthesia and decrease the dose requirement of local anesthetics [4].

Nalbuphine, a derivative of 14-hydroxy morphine is a strong analgesic with mixed kappa agonist and µ antagonist properties. Its potency is equal to morphine, but exhibits a ceiling effect on respiratory depression. It has the potential to maintain and enhance µ-opioid based anesthesia while simultaneously mitigating the µ-opioid side effects [5].

Dexmedetomidine is an imidazole compound. It is a highly selective α-2 adrenergic agonist with an affinity 8 times more specific when compared to clonidine. It has sedative, sympatholytic and analgesic effects that blunt cardiovascular responses both intraoperative and in the perioperative period. Patients remain calm and sedated when undisturbed but arouse readily with stimulation [6]. Dexmedetomidine causes manageable hypotension and bradycardia, but the striking feature of this drug is the lack of opioid-related adverse effects like respiratory depression, pruritis, nausea, and vomiting [7].

Being tested
normal saline, Dexmedetomidine, Nalbuphine
Keywords
Epidural Nalbuphine, Epidural Dexmedetomidine, combined spinal-epidural anesthesia, lower limb surgeries

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • normal salineDrug

    Surgery will be started under spinal anesthesia. When sensory block regress to T12 dermatome Epidural bolus dose will be given epidural bolus dose of 12ml (10ml 0.25% bupivacaine + 2ml normal saline) The onset of sensory blockade injected epiduraly with maximal cephalic spread will be assessed by bilateral pinprick method along the midclavicular line, every 5 min for 30 min and then every 30 min.

    top up dose of 8ml will be given postoperative (6ml 0.25% bupivacaine + 2ml normal saline).

  • DexmedetomidineDrug

    Surgery will be started under spinal anesthesia. When sensory block regress to T12 dermatome Epidural bolus dose will be given epidural bolus dose of 12ml (10ml 0.25% bupivacaine + 100µg dexmedetomidine in 2ml volume) The onset of sensory blockade injected epiduraly with maximal cephalic spread will be assessed by bilateral pinprick method along the midclavicular line, every 5 min for 30 min and then every 30 min.

    top up dose of 8ml will be given postoperative (6ml 0.25% bupivacaine + 20µg dexmedetomidine in 2ml volume).

  • NalbuphineDrug

    Surgery will be started under spinal anesthesia. When sensory block regress to T12 dermatome Epidural bolus dose will be given epidural bolus dose of 12ml (10ml 0.25% bupivacaine + 10mg nalbuphine in 2ml volume) The onset of sensory blockade injected epiduraly with maximal cephalic spread will be assessed by bilateral pinprick method along the midclavicular line, every 5 min for 30 min and then every 30 min.

    top up dose of 8ml will be given postoperative (6ml 0.25% bupivacaine + 2mg nalbuphine in 2ml volume).

Study groups in NCT05041270
Study groupRoleWhat they receive
control groupPlacebo comparatorpatient will be given epidural bolus dose of 12ml (10ml 0.25% bupivacaine + 2ml normal saline), top up dose of 8ml will be given postoperative (6ml 0.25% bupivacaine + 2ml normal saline).
Receives: Drug: normal saline
dexmedetomidine groupActive comparatorpatient will be given epidural bolus dose of 12ml (10ml 0.25% bupivacaine + 100µg dexmedetomidine in 2ml volume), top up dose of 8ml will be given postoperative (6ml 0.25% bupivacaine + 20µg dexmedetomidine in 2ml volume)
Receives: Drug: Dexmedetomidine
nalbuphine groupActive comparatorpatient will be given epidural bolus dose of 12ml (10ml 0.25% bupivacaine + 10mg nalbuphine in 2ml volume), top up dose of 8ml will be given postoperative (6ml 0.25% bupivacaine + 2mg nalbuphine in 2ml volume)
Receives: Drug: Nalbuphine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Duration of epidural analgesia

    time elapsed from epidural injection of LA until VAS score (≥3)

    Measured: within 24 hour postoperative

  2. Maximum level of sensory blockade

    the maximum sensory dermatome level after 30 min of administering the local anesthetic in the epidural space

    Measured: after 30 min of administering the local anesthetic in the epidural space

Secondary outcomes (2)
  1. number of top up doses required

    When sensory block regress to T12 dermatome Epidural bolus dose will be given

    Measured: within 24 hour postoperative

  2. assessment of changes in patient's level of sedation

    assessment of patient's level of sedation using Ramsey sedation score; where 1=patient is anxious and agitated or restless, or both.

    2= Patient is co-operative, oriented, and tranquil. 3= Patient responds to commands only. 4= Patient exhibits brisk response to light glabellar tap or loud auditory stimulus.

    5= Patient exhibits a sluggish response to light glabellar tap or loud auditory stimulus.

    6= Patient exhibits no response.

    Measured: Sedation scores will be recorded just before the initiation and 2 hours postoperatively

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Sep 2021
  2. Study start1 Oct 2021
  3. Primary completion30 Apr 2022
  4. Study completion15 May 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
The patients will be divided randomly by a computer-generated randomization table into three equal groups
Masking
Triple blind
Who is masked
Participant, Care provider, Outcomes assessor
Enrolment
23 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05041270
Sponsor's protocol ID
16-8-2021
Status last verified
May 2023
First submitted
2 Sep 2021
Last updated
12 May 2023
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: planned after the completion of the study and publication

Publications

  • Shruthi AH, Sudheesh K, Nethra SS, Raghavendra Rao RS, Devika Rani D. THE EFFECT OF A SINGLE DOSE OF MAGNESIUM SULPHATE AS AN ADJUVANT TO EPIDURAL BUPIVACAINE FOR INFRAUMBILICAL SURGERIES: A PROSPECTIVE DOUBLE-BLIND, RANDOMIZED CONTROL TRIAL. Middle East J Anaesthesiol. 2016 Feb;23(4):449-55.

    PubMed 27382815
  • Chatrath V, Attri JP, Bala A, Khetarpal R, Ahuja D, Kaur S. Epidural nalbuphine for postoperative analgesia in orthopedic surgery. Anesth Essays Res. 2015 Sep-Dec;9(3):326-30. doi: 10.4103/0259-1162.158004.

    PubMed 26712968
  • Gupta K, Rastogi B, Gupta PK, Singh I, Bansal M, Tyagi V. Intrathecal nalbuphine versus intrathecal fentanyl as adjuvant to 0.5% hyperbaric bupivacaine for orthopedic surgery of lower limbs under subarachnoid block: A comparative evaluation. Indian J Pain. 2016; 30:90-5.

  • Chiruvella S, Donthu B, Nallam SR, Salla DB. Postoperative Analgesia with Epidural Dexmedetomidine Compared with Clonidine following Total Abdominal Hysterectomies: A Prospective Double-blind Randomized Trial. Anesth Essays Res. 2018 Jan-Mar;12(1):103-108. doi: 10.4103/aer.AER_207_17.

    PubMed 29628563
  • Soliman AAM, Melika ASM. Epidural bupivacaine and dexmedetomidine versus bupivacaine and opioids for lower vascular surgery. J Med Sci Res. 2018; 1:158-63.

  • Paul A, Nathroy A, Paul T. A comparative study of dexmedetomidine and fentanyl as an adjuvant to epidural bupivacaine in lower limb surgeries. J Med Sci. 2017; 37:221-6.

  • Farmawy MSE, Mowafy SMS, Wahdan RA. Epidural nalbuphine versus dexmedetomidine as adjuvants to bupivacaine in lower limb orthopedic surgeries for postoperative analgesia: a randomized controlled trial. BMC Anesthesiol. 2023 Dec 6;23(1):401. doi: 10.1186/s12871-023-02348-x.

    PubMed 38057695

Questions about this trial

What is this clinical trial studying?

A study testing normal saline, Dexmedetomidine and Nalbuphine in people with Lower Limb Surgeries, run by Zagazig University at 1 site in Egypt.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 12 May 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Duration of epidural analgesia (time frame: within 24 hour postoperative). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05041270, which also lists 7 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 May 2023.

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