UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000026772
Receipt number R000030733
Scientific Title Analysis of toxic metals in hair in dry eye patients
Date of disclosure of the study information 2017/04/01
Last modified on 2021/04/06 07:10:40

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Basic information

Public title

Analysis of toxic metals in hair in dry eye patients

Acronym

Toxic metals in dry eye

Scientific Title

Analysis of toxic metals in hair in dry eye patients

Scientific Title:Acronym

Toxic metals in dry eye

Region

Japan


Condition

Condition

Dry eye disease

Classification by specialty

Ophthalmology Adult

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

This study will be undergone for unveil the correlation between dry eye disease and harmful metal in the body by using hair sample.

Basic objectives2

Others

Basic objectives -Others

The correlation between dry eye disease and harmful metal in the body

Trial characteristics_1

Exploratory

Trial characteristics_2

Others

Developmental phase

Not applicable


Assessment

Primary outcomes

Harmful metal volume in patients' hair

Key secondary outcomes

Clinical dry eye evaluation factors,
Schirmer test, Tear Break Up Time, corneal staining score, subjective symptoms


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

40 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

We entry the people who meet all conditions below (No.1-4) as dry eye group.
And we entry the people who meet conditions (No.1-3) without dry eye disease (DED) as control group.
1. Those aged 40 and over, who gained informed consent of the person himself / herself voluntarily.
2. Those without systemic diseases affecting wound healing such as eye disease and diabetes.
3. Those without a history of corneal and conjunctival surgery within the past 1 year
4. Those diagnosed definite dry eye disease by Japanese DED diagnostic criteria.
Diagnosis was established according to the Japanese DED diagnostic criteria, as follows; (1) presence of dry eye symptoms; (2) a.presence of qualitative or b.quantitative disturbance of the tear film in 1 or both eyes (a.Shirmer test <= 5 mm or b.Tear Break Up Time <= 5 seconds); and (3) presence of conjunctivocorneal epithelial damage (total staining score => 3 points) in 1 or both eyes. The presence of all 3 criteria was necessary for a definite diagnosis of DED.

Key exclusion criteria

People who meet one of the following conditions are excluded from both dry eye group and control group.
1.Those which can not obtain informed consent for ophthalmic examination.
2.Those that can not obtain informed consent for hair collection
3. Those taking supplements such as vitamin supplements
4. Those having a history of receiving corneal conjunctival surgery within the past one year
5. Those who have cataracts above age appropriate

Target sample size

30


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Yuichi Uchino

Organization

Keio University School of Medicine

Division name

Department of Ophthalmology

Zip code


Address

35 Shinanomachi Shinjuku-ku Tokyo

TEL

+81-3-3353-1211

Email

hmpgx653@yahoo.co.jp


Public contact

Name of contact person

1st name
Middle name
Last name Yuichi Uchino

Organization

Keio University School of Medicine

Division name

Department of Ophthalmology

Zip code


Address

35 Shinanomachi Shinjuku-ku Tokyo

TEL

+81-3-3353-1211

Homepage URL


Email

hmpgx653@yahoo.co.jp


Sponsor or person

Institute

Keio University School of Medicine
Department of Ophthalmology

Institute

Department

Personal name



Funding Source

Organization

Keio University School of Medicine
Department of Ophthalmology

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization

Japan


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 04 Month 01 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

2016 Year 12 Month 12 Day

Date of IRB

2017 Year 03 Month 17 Day

Anticipated trial start date

2017 Year 04 Month 04 Day

Last follow-up date

2021 Year 03 Month 31 Day

Date of closure to data entry

2021 Year 03 Month 31 Day

Date trial data considered complete

2021 Year 03 Month 31 Day

Date analysis concluded

2021 Year 03 Month 31 Day


Other

Other related information

Clinical dry eye evaluation factors
Schirmer test, Tear Break Up Time, corneal staining score, subjective symptoms


Management information

Registered date

2017 Year 03 Month 29 Day

Last modified on

2021 Year 04 Month 06 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000030733


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name