UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000023908
Receipt number R000027459
Scientific Title Femtosecond laser-assisted intracorneal ring segment implantation(Ferrara Ring) for correction of keratoconus.
Date of disclosure of the study information 2016/09/02
Last modified on 2018/09/04 09:44:04

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Basic information

Public title

Femtosecond laser-assisted intracorneal ring segment implantation(Ferrara Ring) for correction of keratoconus.

Acronym

Femtosecond laser-assisted ICRS for correction of keratoconus.

Scientific Title

Femtosecond laser-assisted intracorneal ring segment implantation(Ferrara Ring) for correction of keratoconus.

Scientific Title:Acronym

Femtosecond laser-assisted ICRS for correction of keratoconus.

Region

Japan


Condition

Condition

Keratoconus

Classification by specialty

Ophthalmology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Examine the effectiveness of the intracorneal ring segment implantation(Ferrara ring).

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Visual acuity

Key secondary outcomes

Corneal topography


Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms

1

Purpose of intervention

Treatment

Type of intervention

Device,equipment

Interventions/Control_1

We perform femtosecond laser-assisted intracorneal ring segment implantation(Ferrara Ring)to patients.

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

20 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

1) The mild to moderate case that had a diagnosis of a conical cornea in Keio University Hospital
2) Case with more than 400 micro metre of penumbra cornea thickness (segment episode)
3) Age: 20 years old or older
4) The case that is available for follow-up after an operation more than one year
5) The patient that the document agreement was provided about the treatment using the cornea segment

Key exclusion criteria

A case not to meet the uptake standard mentioned above.
There is other ophthalmopathy (including cornea herpes, a cataract, the retina disease)
Under the pregnancy
The patient whom the explanation of mental abnormality or the doctor cannot understand
The special occupation that a refraction cure is not permitted
The patient who judged that the medical attendant was inappropriate

Target sample size

5


Research contact person

Name of lead principal investigator

1st name
Middle name
Last name Kazuo Tsubota

Organization

Keio university school of medicine

Division name

Department of Ophthalmology

Zip code


Address

35 Shinanomachi, Shinjuku-ku, Tokyo-to, Japan

TEL

03-3353-1211

Email

tsubota@z3.keio.jp


Public contact

Name of contact person

1st name
Middle name
Last name Shigeto Shimmura

Organization

Keio university school of medicine

Division name

Department of Ophthalmology

Zip code


Address

35 Shinanomachi, Shinjuku-ku, Tokyo-to, Japan

TEL

03-3353-1211

Homepage URL


Email

shige@z8.keio.jp


Sponsor or person

Institute

Keio university school of medicine Department of Ophthalmology

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

慶應義塾大学病院


Other administrative information

Date of disclosure of the study information

2016 Year 09 Month 02 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

2015 Year 03 Month 18 Day

Date of IRB


Anticipated trial start date

2015 Year 03 Month 18 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

2016 Year 09 Month 02 Day

Last modified on

2018 Year 09 Month 04 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000027459


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name