The Early Reversibility of Rocuronium After Different Doses of Neostigmine

NCT ID: NCT00001520

Last Updated: 2008-03-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

1996-09-30

Study Completion Date

2000-08-31

Brief Summary

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Neuromuscular blocking agents are commonly used to facilitate endotracheal intubation. Succinylcholine, an ultra short-acting, depolarizing neuromuscular blocking agent, is the most commonly used agent for paralysis in this setting because of its rapid onset and short duration of paralysis. In patients with contraindications to succinylcholine or in whom a difficult airway is anticipated, a neuromuscular blocking agent with a pharmacodynamic profile similar to succinylcholine would be an attractive alternative. Rocuronium, a new intermediate-acting nondepolarizing neuromuscular blocking agent produces paralysis within 60 seconds, similar to succinylcholine, but has a duration of paralysis of approximately 20 to 30 minutes. If rocuronium-induced paralysis could be chemically reversed within 10 to 15 minutes after the administration of an intubating dose, it may be an appropriate alternative in patients with contraindications to succinylcholine or in patients whom a difficult airway is anticipated. Neostigmine is an anticholinesterase agent which inhibits the hydrolysis of acetylcholine by competing with acetylcholine for attachment to acetylcholinesterase. Inhibition of the breakdown of acetylcholine allows the neurotransmitter to be present in the neuromuscular junction for a longer period of time, so that each molecule can bind repeatedly with the acetylcholine receptor. The purpose of this study is to determine the dose of neostigmine necessary for the early reversal of rocuronium-induced paralysis.

Detailed Description

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Neuromuscular blocking agents are commonly used to facilitate endotracheal intubation. Succinylcholine, an ultra short-acting, depolarizing neuromuscular blocking agent, is the most commonly used agent for paralysis in this setting because of its rapid onset and short duration of paralysis. In patients with contraindications to succinylcholine or in whom a difficult airway is anticipated, a neuromuscular blocking agent with a pharmacodynamic profile similar to succinylcholine would be an attractive alternative. Rocuronium, a new intermediate-acting nondepolarizing neuromuscular blocking agent produces paralysis within 60 seconds, similar to succinylcholine, but has a duration of paralysis of approximately 20 to 30 minutes. If rocuronium-induced paralysis could be chemically reversed within 10 to 15 minutes after the administration of an intubating dose, it may be an appropriate alternative in patients with contraindications to succinylcholine or in patients whom a difficult airway is anticipated. Neostigmine is an anticholinesterase agent which inhibits the hydrolysis of acetylcholine by competing with acetylcholine for attachment to acetylcholinesterase. Inhibition of the breakdown of acetylcholine allows the neurotransmitter to be present in the neuromuscular junction for a longer period of time, so that each molecule can bind repeatedly with the acetylcholine receptor. The purpose of this study is to determine the dose of neostigmine necessary for the early reversal of rocuronium-induced paralysis.

Conditions

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Paralysis

Study Design

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Primary Study Purpose

TREATMENT

Interventions

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neostigmine

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

American Society of Anethesiology Class I-III adult patients undergoing elective surgery requiring neuromuscular blockage for endotracheal intubation.

No pre-existing renal or hepatic disease, Myasthenia-Gravis, Eaton-Lambert Disease, pregnancy, concurrent anticonvulsant therapy, history of hypersensitivity to rocuronium, neostigmine, or glycopyrrolate.
Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Institutes of Health Clinical Center (CC)

NIH

Sponsor Role lead

Locations

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Warren G. Magnuson Clinical Center (CC)

Bethesda, Maryland, United States

Site Status

Countries

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United States

References

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Martyn JA, White DA, Gronert GA, Jaffe RS, Ward JM. Up-and-down regulation of skeletal muscle acetylcholine receptors. Effects on neuromuscular blockers. Anesthesiology. 1992 May;76(5):822-43. doi: 10.1097/00000542-199205000-00022.

Reference Type BACKGROUND
PMID: 1575351 (View on PubMed)

Koide M, Waud BE. Serum potassium concentrations after succinylcholine in patients with renal failure. Anesthesiology. 1972 Feb;36(2):142-5. doi: 10.1097/00000542-197202000-00013. No abstract available.

Reference Type BACKGROUND
PMID: 5059104 (View on PubMed)

Mayer M, Doenicke A, Hofmann A, Peter K. Onset and recovery of rocuronium (Org 9426) and vecuronium under enflurane anaesthesia. Br J Anaesth. 1992 Nov;69(5):511-2. doi: 10.1093/bja/69.5.511.

Reference Type BACKGROUND
PMID: 1361356 (View on PubMed)

Other Identifiers

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96-CC-0122

Identifier Type: -

Identifier Source: secondary_id

960122

Identifier Type: -

Identifier Source: org_study_id

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