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Clinical Trial Summary

This observational study was designed to prove clinical efficacy of the well known "glycopyrrolate" which is considered an orphan drug in Thailand. Since the medication has never been officially used in Thai people and this particular brand "Glyco-P" which was made in India has never been officially proven of its efficacy in Thai people. The study was aimed to prove if this Glyco-P can modestly increase patient's heart rate, decrease secretion and safely used in combination with neostigmine for reversal of non-depo muscle relaxant drugs.


Clinical Trial Description

Background and rationale Glycopyrrolate has been long used since it's first discovery in 19602. The medication is generally available in both oral and injectable form. The uses of glycopyrrolate in anesthesia are mainly for reduction of salivation and secretion3, which plays significant role when airway instrumentation required. The widespread uses of neostigmine for reversal of muscle relaxant effects caused by non-depolarizing muscle relaxant also mandate the co-administration of anti-muscarinic4,5,6. Without availability of glycopyrrolate, atropine was used in Thailand, which results in excessive tachycardia and salivation7,8,9. Glycopyrrolate can also be used when mild bradycardia is encountered but the effects on heart rate is less dominant than atropine10,11.

Glycopyrrolate is considered an orphan drugs in Thailand. There was simply no availability until recently. The local company named "Masu" has decided to market and import the drug from India (Glyco-P®). The formulary has been approved by Thai Food and Drug Administration1. The preparation has also been tested in laboratory by third party well-known pharmacy institute, which proved the existence of an active ingredient. However, the uses of this medication officially have not been made and the appropriate action is to obtain IRB approval at local institution and consent the patients prior to drug administration. The appropriate record of clinical effect should also been made.

Objective

1. Evaluate the clinical efficacy of glycopyrrolate on heart rate, anti-sialagogue effects and when used in conjunction with neostigmine for reversal of neuromuscular blockade.

2. Evaluate the timing, onset and duration of glycopyrrolate injection at different dose.

Materials, participants and study method The study requires

1. 100 patients who scheduled to undergo procedure or operation that require anesthesia service who meet criteria for the uses of glycopyrrolate which includes - requirement of anti-sialogogue, mild bradycardia and in whom receiving neostigmine for reversal of neuromuscular blocking agents.

2. Glyco-P injection

3. Monitorings that capable of HR, BP measurement

4. Suctioning equipment with volumetric measurement

5. Clinician evaluating the effects of medication

6. Timer Participants:- 100 adult male or female patients, over 18 year old who consent to the study.

Exclusion Criteria : Children < 18 yo, pregnant or parturient of breast feeding patients, patients who refused or unable to give consent, patients who has co-existing problems with dry secretion i.e. Sjögren's syndrome, glaucoma, myasthenia gravis, patient whom baseline heart rate is > 100 bpm Study method

1. The patient who meet inclusion criteria will be consent to receive medications.

2. The medications will be administered only 1 of these criteria are met

- To increase heart rate modestly

- For reduction of secretion or salivation

- To co-administration with neostigmine

3. The medications will be given in the following fashion

- Glyco-P 4 mcg/kg IV, repeatedly if no effects. Halt if HR > 100 bpm

- Glyco-P 0.2 mg per each mg of neostigmine used

4. The clinical effects i.e. heart rate, blood pressure, amount of secretion removed will be recorded along with timing of onset and offset.

5. Collected data will be analyzed by statistician with appropriate statistical methods.

Data analysis

1. Demographic data or each participants

2. Dose and indication of treatment of studied drugs

3. Timing of clinical effects

4. Changes in heart rate and blood pressure

5. Efficacy of reduction of saliva and secretion

Duration of study 3 months Benefit of the study Confirmation of clinical efficacy of this Indian made glycopyrrolate - Glyco-P® in Thai patients.

Other institutions participation None ;


Study Design

Time Perspective: Prospective


Related Conditions & MeSH terms


NCT number NCT02102542
Study type Observational
Source Mahidol University
Contact
Status Completed
Phase N/A
Start date July 2012
Completion date April 2013

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