UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000059716
Receipt number R000068298
Scientific Title A Phase III Clinical Study of CHO in Subjects with Ocular Discomfort
Date of disclosure of the study information 2025/11/11
Last modified on 2025/11/10 11:14:57

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Basic information

Public title

A Phase III Clinical Study of CHO in Subjects with Ocular Discomfort

Acronym

A Phase III Clinical Study of CHO in Subjects with Ocular Discomfort

Scientific Title

A Phase III Clinical Study of CHO in Subjects with Ocular Discomfort

Scientific Title:Acronym

A Phase III Clinical Study of CHO in Subjects with Ocular Discomfort

Region

Japan


Condition

Condition

Subjects who have subjective symptoms of ocular dryness and also experience eye fatigue or blurred vision.
In addition, among soft contact lens wearers, those who feel discomfort while wearing contact lenses are included.

Classification by specialty

Ophthalmology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To evaluate the efficacy and safety of CHO administered as 1 to 2 drops per dose, four times daily for two weeks, in subjects with subjective symptoms of ocular dryness.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Change in the score of the subjective symptom "eye dryness"

Key secondary outcomes



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

Medicine

Interventions/Control_1

Over 2weeks

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

12 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

(1) Subjects who meet all of the following criteria 1)-4) for both eyes at the screening visit:
1)Subjects who have subjective symptoms of eye dryness (score >= 1)
2)Subjects who have subjective symptoms of eye fatigue or blurred vision (score >= 1)
3)Subjects who feel discomfort while wearing contact lenses [applicable only to soft contact lens wearers] (score >= 1)
4)Subjects who habitually wear soft contact lenses (5 days or more per week) [applicable only to soft contact lens wearers]
(2) Subjects whose mean scores for both eyes during the 3 days prior to the start of study drug administration are >= 1.0 for all of the following symptoms:
-Eye dryness
-Eye fatigue or blurred vision
-Discomfort while wearing contact lenses [applicable only to soft contact lens wearers]

Key exclusion criteria

(1) Subjects whose tear film break-up time (BUT) in either eye or both eyes is <= 5 seconds at the screening visit.
(2) Subjects who have used over-the-counter (OTC) artificial tears within 3 days prior to the start of study drug administration.
(3) Subjects who have used any ophthalmic preparations (excluding OTC artificial tears) or ophthalmic ointments within 7 days prior to the start of study drug administration.
(4) Subjects who have used corticosteroids, nonsteroidal anti-inflammatory drugs (NSAIDs), or other medications for ophthalmic diseases (both are administered systemically and topically to the head or face, including nasal and ear drops) within 7 days prior to the start of study drug administration.

Target sample size

70


Research contact person

Name of lead principal investigator

1st name Tomomi
Middle name
Last name Mantani

Organization

ROHTO pharmaceutical CO.,LTD

Division name

Pharmaceutical Clinical Development Division

Zip code

6190216

Address

6-5-4, Kunimidai, Kizugawa, Kyoto 619-0216, JAPAN

TEL

0774-71-8802

Email

mantani@rohto.co.jp


Public contact

Name of contact person

1st name Yusuke
Middle name
Last name Takeuchi

Organization

ROHTO pharmaceutical CO.,LTD

Division name

Pharmaceutical Clinical Development Division

Zip code

6310033

Address

6-5-4, Kunimidai, Kizugawa, Kyoto 619-0216, JAPAN

TEL

09092829511

Homepage URL


Email

takeuchiy@rohto.co.jp


Sponsor or person

Institute

ROHTO pharmaceutical CO.,LTD

Institute

Department

Personal name



Funding Source

Organization

ROHTO pharmaceutical CO.,LTD

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

Medical Corporation Heishinkai OPHAC Hospital IRB

Address

4-1-29 Miyahara,Yodogawa-ku,Osaka-shi,Osaka 532-0003 JAPAN

Tel

06-6395-9000

Email

ophach_jinukyoku@heishinkai.com


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

2025 Year 11 Month 11 Day


Related information

URL releasing protocol

N/A

Publication of results

Unpublished


Result

URL related to results and publications

N/A

Number of participants that the trial has enrolled

70

Results

Administration of CHO as 1-2 drops per dose, four times daily for two weeks, demonstrated efficacy in improving subjective symptoms such as ocular dryness and was well tolerated, indicating that it may be a useful new therapeutic option for the treatment of ocular dryness and related symptoms.

Results date posted

2025 Year 11 Month 10 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics

The average age(years) at the time of consent of the 70 patients enrolled was 44.6years.

Participant flow

A total of 108 patients consented to participate in this clinical trial. Of these, 70 patients (64.8%) were eligible, and 38 patients (35.2%) were ineligible. 70 patients were enrolled, and 38 patients were unenrolled.70 patients were administered the investigational drug, 70 patients completed the treatment period, and 0 patients discontinued the study.

Adverse events

Adverse events were reported in 4 of 70 subjects (5.7%) in this clinical study. No adverse drug reactions (events with a causal relationship to the investigational product) were observed.
By preferred term (PT), the events included corneal erosion in 1 subject (1.4%), eyelid swelling in 1 subject (1.4%), eyelid pain in 1 subject (1.4%), nasopharyngitis in 1 subject (1.4%), and skin cyst in 1 subject (1.4%).
In terms of severity, one event (skin cyst) was classified as moderate. Mild adverse events consisted of corneal erosion, eyelid swelling, eyelid pain, and nasopharyngitis-one case each, for a total of 4 events in 3 subjects.

Outcome measures

Primary Endpoint:
Change in the score of the subjective symptom "dryness of the eyes."

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2021 Year 08 Month 06 Day

Date of IRB

2021 Year 09 Month 10 Day

Anticipated trial start date

2021 Year 10 Month 13 Day

Last follow-up date

2021 Year 12 Month 25 Day

Date of closure to data entry


Date trial data considered complete

2022 Year 01 Month 21 Day

Date analysis concluded

2022 Year 04 Month 13 Day


Other

Other related information



Management information

Registered date

2025 Year 11 Month 10 Day

Last modified on

2025 Year 11 Month 10 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000068298