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Magnesium SulfatePhase 4NCT06685705

Comparative Study Between Intrathecal Magnesium Sulfate, Neostigmine and Fentanyl as Adjuvant for Bubivacaine in Postoperative Analgesia in Lower Abdominal Surgeries

A Phase 4 study testing Magnesium Sulfate and Bupivacaine 0.125%, bupivacaine and Neostigmine and fentanyl and bupivacaine in people with Magnesium Sulfate and Neostigmine, run by Assiut University.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
Search all trials

Trial summary

Lower abdominal surgeries often result in severe pain, which in turn can cause rapid and shallow breathing, retention of secretions and poor patient compliance. Justifiably, apart from the fear for the surgery outcome, patients are concerned mainly with postoperative pain. Read more about this study

Who is it for?
Ages 18 to 55 years
Conditions the study is for
Magnesium Sulfate, Neostigmine, Fentanyl
What is being tested?
Magnesium Sulfate and Bupivacaine 0.125%, bupivacaine and Neostigmine and fentanyl and bupivacaine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
66 participants
Where
No sites listed yet
Study dates
1 Dec 2024to 1 Jan 2026
Phase
Phase 4
Are there results?
Not yet: the study is under way

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 18 to 55 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • • the American Society of Anesthesiologists (ASA) classification I-II
  • Age >18 up to 55 years old
  • Both sex
  • Patients who will undergo lower abdominal surgeries

Who cannot join

  • • Patients' refusal.
  • Patients with morbid obesity, cardiac diseases, hepatic diseases, renal diseases, diabetes mellitus with polyneuritis.
  • Patients who were in risk-scoring groups American Society of Anesthesia III-IV.
  • Hypertensive patients receiving therapy with adrenergic receptor antagonist, calcium channel blocker and/or angiotensin converting enzyme inhibitor.
  • Patients with coagulation disorders, those receiving any anticoagulants.
  • Any history of allergy to local anesthetic or other drugs used in the study, patients on examining drugs.
  • Any contraindication to spinal anesthesia ( infection at puncture site and increased intracranial tension and Patients with psychiatric illness and neurologic diseases.

Trial locations and contacts

No sites are listed yet. Contact the study team or a site near you to ask about taking part.

Mohsen Mohamed Mohsen Mahmoud, resident doctors contact

+101092209597

mohsen.16266366@med.aun.edu.eg

About this study

Lower abdominal surgeries often result in severe pain, which in turn can cause rapid and shallow breathing, retention of secretions and poor patient compliance. Justifiably, apart from the fear for the surgery outcome, patients are concerned mainly with postoperative pain. If treated inadequately, acute pain can have serious consequences for patient health mainly with postoperative complications, prolonged recovery and increased length of hospital stay. Higher levels of postoperative pain and pain distress are associated with increased morbidity, poorer functional recovery, and reduced quality of life.

Aim of the study To compare the duration, quality of analgesia, and side effects between intrathecal Magnesium sulfate, neostigmine and fentanyl as adjuvant for bubivacaine as postoperative analgesia in lower abdominal surgeries

Read the detailed description

Effective analgesia aims to minimize patients stress response, pain intensity and distress, and side-effects of large single drug doses (typically an opioid). Numerous analgesic options exist for postoperative analgesia after abdominal surgery, including multiple classes of drugs and routes of administration e.g. parenteral, regional, neuraxial analgesia which include (epidural/intrathecal) techniques, truncal nerve blocks, and systemic drugs infusions.

Spinal anesthesia is a widely used technique in lower abdominal surgeries, offering several benefits such as allowing the patient to remain awake during the procedure, quick onset of action, high success rate, minimal drug dosage, effective sensory and motor blocks, and cost-effectiveness. However, despite these advantages, it can also cause side effects like hypotension, bradycardia, nausea, vomiting, and shivering.

Bupivacaine, is a commonly used local anesthetic, but its use can be limited by the duration of action and potential side effects. To enhance the analgesic effects and prolong the duration of bupivacaine, various adjuvants such as magnesium sulfate, neostigmine, and fentanyl are added intrathecally. Each adjuvant offers unique pharmacological properties that can influence spinal anesthesia's efficacy.

Magnesium sulfate, known for its N-methyl-D-aspartate (NMDA) receptor antagonist properties, decreases sensitivity to both central and peripheral pain stimuli by blocking calcium influx and reducing the excitability of NMDA receptors. Several studies have evaluated the role of magnesium sulfate (MgSO4) as an agent for pain control and reduction of analgesia requirement intra-and post-operatively. In some of these studies, researchers concluded that MgSO4 may reduce the need for opioid analgesic agents.

Neostigmine is a water-soluble, ionized compound that inhibits acetylcholinesterase (AChE). Its indication in FDA is to reverse the effect of non-depolarizing neuromuscular blockers after surgery. The drug is usually administered by intravenous injection, and the main route of excretion is the kidney. Neostigmine should be used with caution in patients with coronary heart disease, arrhythmia, recent acute coronary syndrome and myasthenia gravis. Neostigmine works by preventing the breakdown of the neurotransmitter acetylcholine. Recent studies suggest that this inhibition of acetylcholine degradation strengthens the descending modulation of afferent pain signals, offering a novel method for improving analgesia with minimal dose-related side effects. It enhances spinal cholinergic transmission, potentially increasing the analgesic effects without causing respiratory depression.

Fentanyl, a potent opioid, is commonly used as an adjuvant due to its strong analgesic properties, its primary clinical uses include sedation for intubated patients and managing severe pain, especially in those with renal failure, as it's predominantly metabolized by the liver . Fentanyl is also prescribed for chronic pain patients who have developed a tolerance to other opioids. Fentanyl is more lipid soluble than morphine which is more rapidly eliminated from cerebrospinal fluid. It provides dense blockade with complete intra- and postoperative analgesia without causing hemodynamic instability. It has relatively fewer side effects which are manageable and very well tolerated by the patients.

The comparative effectiveness of these adjuvants in prolonging the duration of analgesia, reducing postoperative opioid requirements, and minimizing adverse effects is crucial for improving patient outcomes.

Being tested
Magnesium Sulfate and Bupivacaine 0.125%, bupivacaine and Neostigmine, fentanyl and bupivacaine
Keywords
lower abdominal surgeries

What participants receive

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

  • Magnesium Sulfate and Bupivacaine 0.125%Drug

    patients will receive 15 mg of 0.5% hyperbaric bupivacaine + 50 mg Magnesium sulfate intrathecally.

  • bupivacaine and NeostigmineDrug

    patients will receive 15mg of 0.5% hyperbaric bupivacaine + 50 µg Neostigmine intrathecally

  • fentanyl and bupivacaineDrug

    patients will receive 15mg of 0.5% hyperbaric bupivacaine + 25µg of fentanyl intrathecally.

Study groups in NCT06685705
Study groupRoleWhat they receive
group 1Experimentalpatients will receive 15 mg of 0.5% hyperbaric bupivacaine + 50 mg Magnesium sulfate intrathecally.
Receives: Drug: Magnesium Sulfate and Bupivacaine 0.125%
group 2Experimentalpatients will receive 15mg of 0.5% hyperbaric bupivacaine + 50 µg Neostigmine intrathecally
Receives: Drug: bupivacaine and Neostigmine
group3Experimentalpatients will receive 15mg of 0.5% hyperbaric bupivacaine + 25µg of fentanyl intrathecally.
Receives: Drug: fentanyl and bupivacaine

What is being measured

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

  1. first request of rescue analgesia

    The time of first request of rescue analgesia calculated from the time of spinal anesthesia.

    Measured: baseline

Secondary outcomes (1)
  1. post operative VAS score

    post operative VAS score

    Measured: baseline

Timeline

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

  1. First posted12 Nov 2024
  2. Study start1 Dec 2024 (estimated)
  3. Primary completion1 Dec 2025 (estimated)
  4. Study completion1 Jan 2026 (estimated)

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Care provider, Investigator
Enrolment
66 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06685705
Sponsor's protocol ID
MgSO4 neostigmine fentanyl
Status last verified
Nov 2024
First submitted
11 Nov 2024
Last updated
12 Nov 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Liu W, Bao S, Chen J, Li Y, Gu Y, Ye Q, Hai K. Bupivacaine-fentanyl isobaric spinal anesthesia reduces the risk of ICU admission in elderly patients undergoing lower limb orthopedic surgery. J Orthop Surg Res. 2024 Mar 1;19(1):160. doi: 10.1186/s13018-024-04618-x.

    PubMed 38429736
  • Li LQ, Fang MD, Wang C, Lu HL, Wang LX, Xu HY, Zhang HZ. Comparative evaluation of epidural bupivacaine alone and bupivacaine combined with magnesium sulfate in providing postoperative analgesia: a meta-analysis of randomized controlled trials. BMC Anesthesiol. 2020 Feb 5;20(1):39. doi: 10.1186/s12871-020-0947-8.

    PubMed 32024465
  • Prabhakaraiah UN, Narayanappa AB, Gurulingaswamy S, Kempegowda K, Vijaynagar KA, Hanumantharayappa NB, Ramegowda DS. "Comparison of Nalbuphine Hydrochloride and Fentanyl as an Adjuvant to Bupivacaine for Spinal Anesthesia in Lower Abdominal Surgeries:" A Randomized, Double-blind Study. Anesth Essays Res. 2017 Oct-Dec;11(4):859-863. doi: 10.4103/aer.AER_40_17.

    PubMed 29284839
  • Pandey V, Mohindra BK, Sodhi GS. Comparative evaluation of different doses of intrathecal neostigmine as an adjuvant to bupivacaine for postoperative analgesia. Anesth Essays Res. 2016 Sep-Dec;10(3):538-545. doi: 10.4103/0259-1162.180779.

    PubMed 27746548
  • Si S, Zhao X, Su F, Lu H, Zhang D, Sun L, Wang F, Xu L. New advances in clinical application of neostigmine: no longer focusing solely on increasing skeletal muscle strength. Front Pharmacol. 2023 Aug 4;14:1227496. doi: 10.3389/fphar.2023.1227496. eCollection 2023.

    PubMed 37601044
  • Liao Y, Li Y, Ouyang W. Effects and safety of neostigmine for postoperative recovery of gastrointestinal function: a systematic review and meta-analysis. Ann Palliat Med. 2021 Dec;10(12):12507-12518. doi: 10.21037/apm-21-3291.

    PubMed 35016456
  • Hussien RM, Rabie AH. Sequential intrathecal injection of fentanyl and hyperbaric bupivacaine at different rates: does it make a difference? A randomized controlled trial. Korean J Anesthesiol. 2019 Apr;72(2):150-155. doi: 10.4097/kja.d.18.00173. Epub 2019 Jan 9.

    PubMed 30622224
  • Taher-Baneh N, Ghadamie N, Sarshivi F, Sahraie R, Nasseri K. [Comparison of fentanyl and dexmedetomidine as an adjuvant to bupivacaine for unilateral spinal anesthesia in lower limb surgery: a randomized trial]. Braz J Anesthesiol. 2019 Jul-Aug;69(4):369-376. doi: 10.1016/j.bjan.2019.03.005. Epub 2019 Jul 27.

    PubMed 31362883
  • Pirie K, Traer E, Finniss D, Myles PS, Riedel B. Current approaches to acute postoperative pain management after major abdominal surgery: a narrative review and future directions. Br J Anaesth. 2022 Sep;129(3):378-393. doi: 10.1016/j.bja.2022.05.029. Epub 2022 Jul 6.

    PubMed 35803751

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Magnesium Sulfate and Bupivacaine 0.125%, bupivacaine and Neostigmine and fentanyl and bupivacaine in people with Magnesium Sulfate and Neostigmine, run by Assiut University.

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 7 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: opening soon, as of the sponsor's last update on 12 Nov 2024. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

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

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

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

Contact Mohsen Mohamed Mohsen Mahmoud, resident doctors (+101092209597, mohsen.16266366@med.aun.edu.eg), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

first request of rescue analgesia (time frame: baseline). 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 NCT06685705, which also lists 9 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 Nov 2024.

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