UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000006228
Receipt number R000007374
Scientific Title The Effect of Valproate on the Required Dose of Propofol for Sedation in Patients With Mental Retardation
Date of disclosure of the study information 2011/08/25
Last modified on 2012/03/23 16:32:40

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Basic information

Public title

The Effect of Valproate on the Required Dose of Propofol for Sedation in Patients With Mental Retardation

Acronym

Effect of Valproate on Propofol

Scientific Title

The Effect of Valproate on the Required Dose of Propofol for Sedation in Patients With Mental Retardation

Scientific Title:Acronym

Effect of Valproate on Propofol

Region

Japan


Condition

Condition

Patients with oral valproate

Classification by specialty

Neurology Anesthesiology Dental medicine
Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

It is well-known that antiepileptics influence drug-metabolizing enzymes . It has also been demonstrated in vitro that antiepileptics influence the metabolism of anesthetics. Particularly, carbamazepine has been reported to promote benzodiazepine metabolism by activating cytochrome P-450 (CYP). Valproate has been demonstrated to influence glucuronic acid conjugation and inhibit propofol metabolism, but, to our knowledge, no study has clinically demonstrated its influence. Thus, we hypothesized that oral valproate influences propofol pharmacokinetics and subsequently reduces the propofol dose required during anesthesia. The objective of our study was to investigate the clinical influence of oral valproate on the propofol dose required for sedation during dental treatment in patients with mental retardation. The clinical endpoint was set as the avoidance of complications assumed to be caused by the overdose of an anesthetic, propofol, or a delay in the recovery from anesthesia.

Basic objectives2

Safety

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

The required dose of propofol

Key secondary outcomes



Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

16 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

American Society of Anesthesiologists (ASA) physical status is 1 or 2.
The dental treatment plan had been prepared.
Patients had moderate or severe Mental Retardation, and were not completely cooperated with dental treatment.

Key exclusion criteria

Patients can communicate and cooperate with dental treatment.
Patients need premedication and inhalational anesthetics.
ASA physical status is 3 or 4.
The complications are not controlled by oral drugs.
There is a tendency of somnolence before treatment due to the influence of medicine.
Patients have oral antiepileptic or psyhotropic drug medication excluding valproate

Target sample size

50


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Takuya Miyawaki

Organization

Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Siences

Division name

Department of Dental Anesthsiology and Special Care Dentistry

Zip code


Address

2-5-1 Shikata-cho, Kita-ku, Okayama, Japan

TEL


Email



Public contact

Name of contact person

1st name
Middle name
Last name Minako ishii

Organization

Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Siences

Division name

Department of Dental Anesthsiology and Special Care Dentistry

Zip code


Address


TEL

086-235-6721

Homepage URL


Email



Sponsor or person

Institute

Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Siences

Institute

Department

Personal name



Funding Source

Organization

Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Siences

Organization

Division

Category of Funding Organization

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization


Address


Tel


Email



Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2011 Year 08 Month 25 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2009 Year 02 Month 24 Day

Date of IRB


Anticipated trial start date

2009 Year 02 Month 01 Day

Last follow-up date

2010 Year 08 Month 01 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

The required dose of propofol
The recovery time of eyelash reflex
The recovery time of eye opening


Management information

Registered date

2011 Year 08 Month 24 Day

Last modified on

2012 Year 03 Month 23 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000007374


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name