UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000015219
Receipt number R000017695
Scientific Title Can Modulation of neurochemical pathways in the brain reverse the effects of sleep deprivation on the psychmotor and cognitive performance of surgical trainees 09/H0304/24 amendment 5(REC6)
Date of disclosure of the study information 2014/09/22
Last modified on 2014/09/21 21:09:28

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Basic information

Public title

Can Modulation of neurochemical pathways in the brain reverse the effects of sleep deprivation on the psychmotor and cognitive performance of surgical trainees 09/H0304/24 amendment 5(REC6)

Acronym

The Preservation of Cued Recall in the Acute Mentally Fatigued State- A Randomised Crossover Study

Scientific Title

Can Modulation of neurochemical pathways in the brain reverse the effects of sleep deprivation on the psychmotor and cognitive performance of surgical trainees 09/H0304/24 amendment 5(REC6)

Scientific Title:Acronym

The Preservation of Cued Recall in the Acute Mentally Fatigued State- A Randomised Crossover Study

Region

Europe


Condition

Condition

A randomised crossover study involving twenty healthy medical students assessed free (presentation) and cued (MCQ) recall of clinical case histories at 0 and 2hrs under low and high cognitive load settings using the N-Back task.

Classification by specialty

Medicine in general Surgery in general Not applicable
Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To investigate the impact of acute mental fatigue on the recall of clinical information in the non-sleep deprived state.

Basic objectives2

Safety

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2


Developmental phase

Not applicable


Assessment

Primary outcomes

Free Recall
Cued Recall

Key secondary outcomes

N-Back task
Visual analogue scale
Stanford Scale
NASA TLX


Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

No treatment

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

NO

Concealment

Numbered container method


Intervention

No. of arms

4

Purpose of intervention

Educational,Counseling,Training

Type of intervention

Other

Interventions/Control_1

Day 1 N-Back task - visual 1-back for 15 minutes alternating with 15 minutes rest time for 90 minutes. (control). Using History 1
Day 2 N-Back task - dual 2 back (visual and audio) for 90 minutes Using History 2

Interventions/Control_2

Day 1 N-Back task - dual 2 back (visual and audio) for 90 minutes Using History 1
Day 2 N-Back task - visual 1-back for 15 minutes alternating with 15 minutes rest time for 90 minutes. (control). Using History 2

Interventions/Control_3

Day 1 N-Back task - visual 1-back for 15 minutes alternating with 15 minutes rest time for 90 minutes. (control). Using History 2
Day 2 N-Back task - dual 2 back (visual and audio) for 90 minutes Using History 1

Interventions/Control_4

Day 1 N-Back task - dual 2 back (visual and audio) for 90 minutes Using History 2
Day 2 N-Back task - visual 1-back for 15 minutes alternating with 15 minutes rest time for 90 minutes. (control). Using History 1

Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <

Age-upper limit

65 years-old >

Gender

Male and Female

Key inclusion criteria

healthy medical students with experience of presenting clinical histories.
Stimulant (caffeine) free from midnight
No regular medications

Key exclusion criteria

Caffeine based products, chocolate or medications that would effect cognitive state.

Target sample size

20


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Ara Darzi

Organization

Imperial College

Division name

Department of BioSurgery and Surgical Technology

Zip code


Address

St Mary's Hospital London W21NY

TEL

442033126666

Email

a.darzi@imperial.ac.uk


Public contact

Name of contact person

1st name
Middle name
Last name Ara Darzi

Organization

Imperial College London

Division name

Department of BioSurgery and Surgical Technology

Zip code


Address

St Mary's Hospital London W21NY

TEL

442033126666

Homepage URL


Email

a.darzi@imperial.ac.uk


Sponsor or person

Institute

Imperial College London

Institute

Department

Personal name



Funding Source

Organization

Imperial College London

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization

UK


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

Imperial College London


Other administrative information

Date of disclosure of the study information

2014 Year 09 Month 22 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

Free recall is significantly impaired by increased cognitive load (p<0.05) with subjects demonstrating perceived mental fatigue during the high cognitive load assessment. There was no significant difference in the amount of information retrieved by cued recall under high and low cognitive load conditions (p =1).

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

2012 Year 01 Month 03 Day

Date of IRB


Anticipated trial start date

2012 Year 03 Month 01 Day

Last follow-up date

2012 Year 10 Month 01 Day

Date of closure to data entry

2012 Year 10 Month 01 Day

Date trial data considered complete

2013 Year 01 Month 01 Day

Date analysis concluded

2013 Year 11 Month 01 Day


Other

Other related information



Management information

Registered date

2014 Year 09 Month 21 Day

Last modified on

2014 Year 09 Month 21 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000017695


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name