Ketamine Tolerance in Children After Repeated Administrations During Radiotherapy Sessions

NCT ID: NCT02512055

Last Updated: 2015-07-30

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

33 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-05-31

Study Completion Date

2014-05-31

Brief Summary

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Ketamine provides a safety zone for sedated but spontaneously ventilated children especially in remote conditions such as radiotherapy units where sedation is an essential practice for children to keep calm and motionless In this study, investigators planned to analyse ketamine doses needed and the recovery times in pediatric oncology patients undergoing repeated radiotherapy sessions.

Detailed Description

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Ketamine provides a safety zone for sedated but spontaneously ventilated children especially in remote conditions such as radiotherapy units where sedation is an essential practice for children to keep calm and motionless.However, there had been a disagreement about the ketamine doses needed for a continuous and steady level of sedation during repeated radiotherapy sessions in children. In this study, investigators planned to analyse ketamine doses needed and the recovery times in pediatric oncology patients undergoing repeated radiotherapy sessions.After approval from the Baskent University, School of Medicine, Ethics and Research Committee (KA09/247) and informed consents of the patients' guardians, 33 pediatric patients undergoing radiotherapy due to oncologic disorders were enrolled to receive ketamine 2 mg/kg and atropine 10 μg/kg.Patients' demographic data such as age, gender, weight, ASA physical status and duration and total number of radiotherapy sessions were noted. Total ketamine consumption to maintain the targeted sedation level during each session, additional dose administration and the recovery time were recorded. The adverse events such as apnea, laryngospasm, bronchospasm, desaturation, respiratory depression, bradycardia, sedation levels deeper or superficial than intended to, excessive salivation, allergy, nausea and vomiting and need for emergency medication were also noted after each session. The study drugs were prepared, labelled and administered by an anesthetist according to the study protocol and data were recorded by an anesthetist blind to the amount of the study drug used.

Conditions

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Conscious Sedation Failure During Procedure

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Investigators

Study Groups

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Group 1

Pediatric patients undergoing repeat radiotherapy session under ketamine sedation

Group Type EXPERIMENTAL

Ketamine

Intervention Type DRUG

Repeated ketamine 2 mg/kg administration intravenously for sedation during each radiotherapy sessions

Interventions

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Ketamine

Repeated ketamine 2 mg/kg administration intravenously for sedation during each radiotherapy sessions

Intervention Type DRUG

Other Intervention Names

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Atropine

Eligibility Criteria

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Inclusion Criteria

* pediatric patients undergoing radiotherapy due to oncologic disorders

Exclusion Criteria

* Patients younger than 1 year and older than 14 year,
* patients with cardiac, renal or liver function abnormalities, who were already under sedative drug treatment or allergic to the drugs to be used or the patients for whom the study drugs
Minimum Eligible Age

1 Year

Maximum Eligible Age

14 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Baskent University

OTHER

Sponsor Role lead

Responsible Party

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Oya Yalcin Cok

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

References

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Hoffman GM, Nowakowski R, Troshynski TJ, Berens RJ, Weisman SJ. Risk reduction in pediatric procedural sedation by application of an American Academy of Pediatrics/American Society of Anesthesiologists process model. Pediatrics. 2002 Feb;109(2):236-43. doi: 10.1542/peds.109.2.236.

Reference Type BACKGROUND
PMID: 11826201 (View on PubMed)

Lois F, De Kock M. Something new about ketamine for pediatric anesthesia? Curr Opin Anaesthesiol. 2008 Jun;21(3):340-4. doi: 10.1097/ACO.0b013e3282f82bde.

Reference Type BACKGROUND
PMID: 18458551 (View on PubMed)

Macnab AJ, Levine M, Glick N, Susak L, Baker-Brown G. A research tool for measurement of recovery from sedation: the Vancouver Sedative Recovery Scale. J Pediatr Surg. 1991 Nov;26(11):1263-7. doi: 10.1016/0022-3468(91)90594-j.

Reference Type BACKGROUND
PMID: 1812252 (View on PubMed)

Tobias JD. Tolerance, withdrawal, and physical dependency after long-term sedation and analgesia of children in the pediatric intensive care unit. Crit Care Med. 2000 Jun;28(6):2122-32. doi: 10.1097/00003246-200006000-00079.

Reference Type BACKGROUND
PMID: 10890677 (View on PubMed)

Trujillo KA, Akil H. Inhibition of opiate tolerance by non-competitive N-methyl-D-aspartate receptor antagonists. Brain Res. 1994 Jan 7;633(1-2):178-88. doi: 10.1016/0006-8993(94)91538-5.

Reference Type BACKGROUND
PMID: 8137155 (View on PubMed)

Trujillo KA. The neurobiology of opiate tolerance, dependence and sensitization: mechanisms of NMDA receptor-dependent synaptic plasticity. Neurotox Res. 2002 Jun;4(4):373-91. doi: 10.1080/10298420290023954.

Reference Type BACKGROUND
PMID: 12829426 (View on PubMed)

Trujillo KA, Zamora JJ, Warmoth KP. Increased response to ketamine following treatment at long intervals: implications for intermittent use. Biol Psychiatry. 2008 Jan 15;63(2):178-83. doi: 10.1016/j.biopsych.2007.02.014. Epub 2007 Jun 13.

Reference Type BACKGROUND
PMID: 17568566 (View on PubMed)

Zapantis A, Leung S. Tolerance and withdrawal issues with sedation. Crit Care Nurs Clin North Am. 2005 Sep;17(3):211-23. doi: 10.1016/j.ccell.2005.04.011.

Reference Type BACKGROUND
PMID: 16115529 (View on PubMed)

Other Identifiers

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KA09/247

Identifier Type: -

Identifier Source: org_study_id

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