UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000007066
Receipt number R000008324
Scientific Title The effect of low dose of midazolam on blood pressure and anxiety scale in white-coat hypertensive dental patients: a double-blind randomized controlled trial.
Date of disclosure of the study information 2012/01/18
Last modified on 2012/10/02 08:12:22

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Basic information

Public title

The effect of low dose of midazolam on blood pressure and anxiety scale in white-coat hypertensive dental patients: a double-blind randomized controlled trial.

Acronym

The effect of low dose of midazolam on blood pressure and anxiety scale in white-coat hypertensive dental patients.

Scientific Title

The effect of low dose of midazolam on blood pressure and anxiety scale in white-coat hypertensive dental patients: a double-blind randomized controlled trial.

Scientific Title:Acronym

The effect of low dose of midazolam on blood pressure and anxiety scale in white-coat hypertensive dental patients.

Region

Japan


Condition

Condition

Dental patients

Classification by specialty

Cardiology Anesthesiology Dental medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Intravenous sedation was used for dealing with transient hypertension, so-called white-coat hypertension, before dental treatment. Midazolam used as a sedative also has antianxiety effect, and the mechanism is guessed that it minimizes patients' stress, resulting in the stability of blood pressure. The purpose of this RCT is to evaluate the effect of low dose of midazolam on blood pressure and anxiety scale in white-coat hypertensive dental patients.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Confirmatory

Trial characteristics_2


Developmental phase

Not applicable


Assessment

Primary outcomes

Blood pressure, heart rate, and oxygen saturation before and 2,4,6,8,10 minutes after drug administration.
Japanese version of STAI before and 10 minutes after drug administration.

Key secondary outcomes

Visual analog scale about anxiety to dental treatment.
Sedation level.


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Double blind -all involved are blinded

Control

Placebo

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is considered as a block.

Blocking

NO

Concealment

Numbered container method


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Medicine

Interventions/Control_1

Group M: Intravenous administration of midazolam at dose of 0.02mg/kg.

1. We select subject from patients for whom the doctor has ordered intravenous
sedation. Inclusion criteria is SBP>=140mmHg or DBP>=90mmHg measuring when the patient sits on dental chair and has settled down for 5 minutes. Informed consent is obtained from the patient.
2. Patient conducts Japanese version of STAI and VAS about anxiety to dental treatment.
3. We take venous line on the upper limb and inject the drug intravenously. We measure blood pressure, heart rate, and oxygen saturation every 2 minutes until 10 minutes after drug administration.
4. 10 minutes later, patient conducts Japanese version of STAI and VAS about anxiety to dental procedure again.
5.We inject an additional sedative agent and the dental treatment is started.

Study duration is from 01/Oct/2010 to 31/Mar/2013.

Interventions/Control_2

Group P: Intravenous administration of saline solution at dose of 0.004ml/kg as a placebo drug.

Method is same as group M.

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

20 years-old <=

Age-upper limit

64 years-old >=

Gender

Male and Female

Key inclusion criteria

Inclusion criteria is SBP>=140mmHg or DBP>=90mmHg measuring when the patient sits on dental chair and has settled down for 5 minutes among dental outpatients scheduling intravenous sedation with American Society of Anesthesiologists physical status I or II.

Key exclusion criteria

1.Uncontrolled or unstable hypertension
2.Secondary hypertension such as
hyperthyroidism and pheochromocytoma
3.Taking sympathomimetic drugs
4.Contraindication of midazolam such as myasthenia gravis and acute narrow-angle glaucoma
5.A pregnant woman or during lactation period
6.Psychiatric disorder such as
schizophrenia
7.Not having intelligence enough to read, understand and write a Japanese version of STAI
8.Judged unsuitable by a researcher

Target sample size

40


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 Sciences

Division name

Department of Dental Anesthesiology 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 Yoshihisa Watanabe

Organization

Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences

Division name

Department of Dental Anesthesiology and Special Care Dentistry

Zip code


Address

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

TEL


Homepage URL


Email



Sponsor or person

Institute

Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences

Institute

Department

Personal name



Funding Source

Organization

None

Organization

Division

Category of Funding Organization

Self funding

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

岡山大学病院(岡山県)


Other administrative information

Date of disclosure of the study information

2012 Year 01 Month 18 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

2010 Year 07 Month 27 Day

Date of IRB


Anticipated trial start date

2010 Year 12 Month 01 Day

Last follow-up date

2012 Year 07 Month 11 Day

Date of closure to data entry

2012 Year 07 Month 11 Day

Date trial data considered complete

2012 Year 07 Month 13 Day

Date analysis concluded

2012 Year 07 Month 13 Day


Other

Other related information



Management information

Registered date

2012 Year 01 Month 13 Day

Last modified on

2012 Year 10 Month 02 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000008324


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name