UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059755
Receipt number R000068334
Scientific Title A Retrospective Observational Study on Overall Survival Rates by Chemotherapy Regimen in Patients with Distant Metastases Following Oral Cancer Treatment
Date of disclosure of the study information 2025/11/13
Last modified on 2025/11/13 12:40:20

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Basic information

Public title

A Retrospective Observational Study on Overall Survival Rates by Chemotherapy Regimen in Patients with Distant Metastases Following Oral Cancer Treatment

Acronym

A Retrospective Observational Study on Overall Survival in Patients with Distant Metastasis

Scientific Title

A Retrospective Observational Study on Overall Survival Rates by Chemotherapy Regimen in Patients with Distant Metastases Following Oral Cancer Treatment

Scientific Title:Acronym

A Retrospective Observational Study on Overall Survival in Patients with Distant Metastasis

Region

Japan


Condition

Condition

Oral cancer

Classification by specialty

Dental medicine

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

This study examines cases of oral cancer with distant metastasis treated according to NCCN guidelines. We first clarify the proportion of distant metastases by site and identify risk factors. We also calculate overall survival rates based on the timing of drug approval to evaluate the extent to which new drugs contributed to improved overall survival. Clarifying this will help define the appropriate use of therapeutic agents in distant metastasis cases and contribute to future oral cancer care.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Others

Trial characteristics_2

Others

Developmental phase

Not applicable


Assessment

Primary outcomes

Difference in survival rates between first-line drugs for distant metastasis (number of days from treatment initiation to last observation, with death as the event).

Key secondary outcomes



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

20 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Cases treated for oral cancer at Nagasaki University Hospital's Department of Oral and Maxillofacial Surgery between June 1, 2008, and April 30, 2024, in which distant metastasis was identified, treatment for distant metastasis was administered, and the outcome is known.

Key exclusion criteria

Cases where medical records contain insufficient documentation, preventing adequate information gathering

Target sample size

51


Research contact person

Name of lead principal investigator

1st name Taro
Middle name
Last name Miyoshi

Organization

Nagasaki University

Division name

Department of Oral surgery

Zip code

851-2131

Address

1-7-1, sakamoto, nagasaki, Japan

TEL

0958197698

Email

natsuaya1023@gmail.com


Public contact

Name of contact person

1st name Hiromasa
Middle name
Last name Fukushima

Organization

Nagasaki University Hospital

Division name

Oral surgery

Zip code

852-8588

Address

1-7-1, sakamoto, nagasaki, Japan.

TEL

095-819-7698

Homepage URL


Email

hirofuku922@nagasaki-u.ac.jp


Sponsor or person

Institute

Nagasaki University

Institute

Department

Personal name



Funding Source

Organization

Nagasaki University

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

Nagasaki University

Address

1-7-1, sakamoto, nagasaki, Japan.

Tel

0958197698

Email

hirofuku922@nagasaki-u.ac.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

2025 Year 11 Month 13 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

2025 Year 11 Month 10 Day

Date of IRB


Anticipated trial start date

2025 Year 11 Month 13 Day

Last follow-up date

2028 Year 12 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

None


Management information

Registered date

2025 Year 11 Month 13 Day

Last modified on

2025 Year 11 Month 13 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068334