UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000027348
Receipt number R000031290
Scientific Title Understanding changes of body-specific attention and spatial attention in patients with complex regional pain syndrome.
Date of disclosure of the study information 2017/05/16
Last modified on 2018/08/15 19:10:38

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Basic information

Public title

Understanding changes of body-specific attention and spatial attention in patients with complex regional pain syndrome.

Acronym

Changes of body-specific attention and spatial attention in CRPS.

Scientific Title

Understanding changes of body-specific attention and spatial attention in patients with complex regional pain syndrome.

Scientific Title:Acronym

Changes of body-specific attention and spatial attention in CRPS.

Region

Japan


Condition

Condition

Complex regional pain syndrome

Classification by specialty

Orthopedics Rehabilitation medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To investigate the relationship between changes of body-specific and spatial attention and change of the pain in CRPS by using psychophysiological methods.

Basic objectives2

Others

Basic objectives -Others

Complex Regional Pain Syndrome (CRPS), characterized by severe pain and swelling, and changes in the skin on affected limb, is intractable pain for long-term after injury. Because the diagnostic criterias of CRPS are very broad , it is difficult to select effective treatments for CRPS in clinical. Previous reports showed that patients with CRPS neglect affected limb (decline of body-specific attention) and hyperattention is directed to the space where the affected limb is placed. However, there is no report that both body-specific attention to affected limb and spatial attention to the affected space were measured at the same time. Other studies showed that mental rotation and prism adaptation tasks reduced pain of CRPS probably due to modulating body-specific attention and spatial attention. Therefore, in this research, we investigate the relationship between changes of body-specific and spatial attention and change of the pain in CRPS by using psychophysiological methods.

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

reaction time to a visual target

Key secondary outcomes



Base

Study type

Interventional


Study design

Basic design

Cross-over

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Active

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

2

Purpose of intervention

Prevention

Type of intervention

Behavior,custom

Interventions/Control_1

In mental rotation task, the patient sits on the chair in front of PC on the table and watch image of either left or right hand rotated at 0-360 degrees on the PC display. The patients perform will be asked to judge of either left or right hand against the hand picture diplayed, and then to push the button of either left or right by unaffected finger. The patients perform 4 sessions (96 trials in a session) and it takes about 16 minutes to complete this intervention.
The patients perform the mental rotation task first for two weeks (five times a week, ten times in total). After two weeks, they perform prism adaptation task for two weeks.

Interventions/Control_2

In prism adaptation task, the patients wear the prism glasses which change visual angle from left to right or right to left. The patients who wear the glasses sit on the chair in front of PC with touch-panel display on the table. When visual stimulus appears on the display at random location in the monitor, they directly push the visual stimulus by unaffected finger. One set of this task take about four minutes and they perform four sets.
The patients perform the prism adaptation task first for two weeks (five times a week, ten times in total). After two weeks, they perform mental rotation task for two weeks.

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


Not applicable

Gender

Male and Female

Key inclusion criteria

(1) Patients with complex regional pain syndrome (CRPS)
(2) Acute and chronic phase
(3) Type 1(without nerve injury) and 2(with nerve injury)
(4) Over 20 years old
(5) Agree to participate our research

Key exclusion criteria

(1) Patients with neurological history
(2) Patients with dementia
(3) Patients with visual field defect

Target sample size

20


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Shin-Ichi Izumi

Organization

Tohoku University Graduate School of Biomedical Engineering

Division name

Department of Physical Medicine and Rehabilitation

Zip code


Address

2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi

TEL

022-717-7338

Email

izumis@bme.tohoku.ac.jp


Public contact

Name of contact person

1st name
Middle name
Last name Naoki Aizu

Organization

Tohoku University Hospital

Division name

Department of Rehabilitation

Zip code


Address

1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi

TEL

022-717-7677

Homepage URL


Email

aizu.naoki.0628@gmail.com


Sponsor or person

Institute

Tohoku University Graduate School of Medicine
Department of Physical Medicine and Rehabilitation

Institute

Department

Personal name



Funding Source

Organization

Tohoku University Graduate School of Medicine
Department of Physical Medicine and Rehabilitation

Organization

Division

Category of Funding Organization

Other

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

2017 Year 05 Month 16 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

2017 Year 03 Month 03 Day

Date of IRB


Anticipated trial start date

2017 Year 05 Month 16 Day

Last follow-up date


Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2017 Year 05 Month 15 Day

Last modified on

2018 Year 08 Month 15 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000031290


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name