UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000063513
Receipt number R000071912
Scientific Title Effect of a Hinokitiol-Containing Oral Care Gel on Perioperative Oral Bacterial Counts in Patients with Esophageal Cancer: Single-center Randomized Controlled Trial
Date of disclosure of the study information 2026/11/10
Last modified on 2026/11/04 09:42:01

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Basic information

Public title

Effect of a Hinokitiol-Containing Oral Care Gel on Perioperative Oral Bacterial Counts in Patients with Esophageal Cancer: A Prospective Interventional Study

Acronym

Research of oral care for Esophageal cancer

Scientific Title

Effect of a Hinokitiol-Containing Oral Care Gel on Perioperative Oral Bacterial Counts in Patients with Esophageal Cancer: Single-center Randomized Controlled Trial

Scientific Title:Acronym

Effect of oral care for Esophageal cancer: Single-center Randomized Controlled Trial

Region

Japan


Condition

Condition

Esophageal Cancer

Classification by specialty

Gastrointestinal surgery Dental medicine

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

To evaluate the effects of a hinokitiol-containing oral care gel used as part of perioperative oral function management in patients with esophageal cancer on changes in oral bacterial counts, the incidence of chemotherapy-related oral complications, and the incidence of postoperative pneumonia.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Change in oral bacterial count

Key secondary outcomes

1. Oral health status assessed using the Oral Assessment Guide (OAG)
2. Incidence of postoperative pneumonia
3. Incidence of chemotherapy-induced oral mucositis
4. Oral dryness assessed using an oral moisture meter


Base

Study type

Interventional


Study design

Basic design

Parallel

Randomization

Randomized

Randomization unit

Individual

Blinding

Open -no one is blinded

Control

Active

Stratification

YES

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

YES

Concealment

Central registration


Intervention

No. of arms

2

Purpose of intervention

Treatment

Type of intervention

Other

Interventions/Control_1

An oral care gel containing hinokitiol will be used during perioperative oral function management.

Interventions/Control_2

An oral care gel containing hinokitiol will not be used during perioperative oral function management, and the oral care products routinely used at the study site will be used instead.

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

Patients who meet all of the following criteria:
1. Age >=20 years, regardless of sex.
2. Histologically and/or cytologically confirmed esophageal cancer.
3. Clinical stage (cStage) 0-IV.
4. ECOG Performance Status of 0-2.
5. Ability to attend outpatient visits for at least 90 days after hospital discharge.
6. Provision of voluntary written informed consent after receiving a sufficient explanation of the study and fully understanding its contents.

Key exclusion criteria

Patients who meet any of the following criteria:
1. Eligible for endoscopic treatment, or having undergone endoscopic treatment without the need for additional treatment.
2. Presence of multiple primary cancers.
3. Poorly controlled diabetes mellitus (HbA1c >=8.4%).
4. Severe hepatic impairment, renal impairment, or cardiovascular disease, as assessed with reference to Grade 3 of the JCOG version of CTCAE v5.0.
5. Severe oral conditions that may affect the oral bacterial count, such as oral mucositis or severe dry mouth, as assessed with reference to Grade 3 of the JCOG version of CTCAE v5.0.
6. Considered unsuitable for participation in the study by the investigator.

Target sample size

80


Research contact person

Name of lead principal investigator

1st name Masaki
Middle name
Last name Ueno

Organization

Toranomon Hospital

Division name

Department of Gastroenterological Surgery

Zip code

105-8470

Address

2-2-2 Toranomon, Minato-ku, Tokyo

TEL

03-3588-1111

Email

ueno@toranomon.gr.jp


Public contact

Name of contact person

1st name Hayato
Middle name
Last name Shimoyama

Organization

Toranomon Hospital

Division name

Department of Gastroenterological Surgery

Zip code

105-8470

Address

2-2-2 Toranomon, Minato-ku, Tokyo

TEL

03-3588-1111

Homepage URL


Email

hayatos@toranomon.gr.jp


Sponsor or person

Institute

Toranomon Hospital

Institute

Department

Personal name

Hayato Shimoyama


Funding Source

Organization

EN Otsuka Pharmaceutical Co., Ltd.

Organization

Division

Category of Funding Organization

Profit organization

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Toranomon Hospital

Address

2-2-2 Toranomon, Minato-ku, Tokyo

Tel

03-3588-1111

Email

chiken-jim2@toranomon.gr.jp


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

2026 Year 11 Month 10 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

Preinitiation

Date of protocol fixation

2026 Year 10 Month 15 Day

Date of IRB

2026 Year 10 Month 20 Day

Anticipated trial start date

2026 Year 12 Month 15 Day

Last follow-up date

2029 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information



Management information

Registered date

2026 Year 11 Month 04 Day

Last modified on

2026 Year 11 Month 04 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071912