UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000054597
Receipt number R000062207
Scientific Title A Prospective Observational Study on Characteristic Endoscopic Findings in Anastomotic Leakage after Esophagectomy
Date of disclosure of the study information 2024/06/06
Last modified on 2024/06/06 22:33:33

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Basic information

Public title

A Prospective Observational Study on Characteristic Endoscopic Findings in Anastomotic Leakage after Esophagectomy

Acronym

A Observational Study on Characteristic Endoscopic Findings in Anastomotic Leakage after Esophagectomy

Scientific Title

A Prospective Observational Study on Characteristic Endoscopic Findings in Anastomotic Leakage after Esophagectomy

Scientific Title:Acronym

A Observational Study on Characteristic Endoscopic Findings in Anastomotic Leakage after Esophagectomy

Region

Japan


Condition

Condition

Esophageal Cancer

Classification by specialty

Gastrointestinal surgery

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

One of the complications of esophagectomy performed for esophageal cancer is anastomotic leakage. If the diagnosis is delayed and the condition worsens, it can lead to fatal complications such as mediastinitis, mediastinal abscess, and sepsis. This study aims to clarify the relationship between endoscopic findings and the occurrence of anastomotic leakage by performing regular postoperative endoscopic examinations and observing the reconstructed organ from the lumen.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Presence of anastomotic leakage
Definition of anastomotic leakage in this study: Cases where a fistula is endoscopically confirmed at the anastomotic site, and classified as Clavien-Dindo Grade II (requiring pharmacological therapy with antibiotics) or higher.

Presence of mucosal defect
Definition of mucosal defect in this study: Cases where a mucosal defect is endoscopically observed at the anastomotic site but does not meet the definition of anastomotic leakage.

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

85 years-old >=

Gender

Male and Female

Key inclusion criteria

(1) Men and women aged 20-85 diagnosed with cervical and thoracic esophageal cancer or esophagogastric junction cancer.
(2) Clinical Stage I-IVA (UICC TNM Classification 8th edition), excluding T4b.
(3) Cases undergoing thoracoscopic esophagectomy (including robot-assisted) with reconstruction using a gastric tube through the posterior mediastinal or retrosternal route, at Tohoku University Hospital, Department of General Surgery (Esophageal Surgery Group) from May 2024 to March 2026.
(4) Individuals who have provided written informed consent to participate in the study.

Key exclusion criteria

For effectiveness evaluation:
1. Cases reconstructed using the small intestine or colon, and cases reconstructed via the anterior thoracic route.

For safety evaluation:
2. Patients with allergies to medications used during endoscopic examination (e.g., Xylocaine spray, midazolam, flumazenil).
3. Women who are pregnant, possibly pregnant, within 28 days postpartum, or breastfeeding.

From the perspective of risk/benefit balance:
4. Patients with a history of clinically significant mental disorders or central nervous system disorders.
5. Patients deemed unsuitable for this study by the responsible (or participating) physician.

Target sample size

180


Research contact person

Name of lead principal investigator

1st name Takashi
Middle name
Last name Kamei

Organization

Tohoku University Graduate School of Medicine

Division name

Department of Surgery

Zip code

980-8574

Address

1-1, Seiryo-machi, Aoba-ku, Sendai-shi, Miyagi, Japan

TEL

+81-227177214

Email

tkamei@med.tohoku.ac.jp


Public contact

Name of contact person

1st name Hirotaka
Middle name
Last name Ishida

Organization

Tohoku University Graduate School of Medicine

Division name

Department of Surgery

Zip code

980-8574

Address

1-1, Seiryo-machi, Aoba-ku, Sendai-shi, Miyagi

TEL

+81-227177214

Homepage URL


Email

h-ishida@tohoku.ac.jp


Sponsor or person

Institute

Tohoku University

Institute

Department

Personal name



Funding Source

Organization

Tohoku 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

the Ethics Committee of Tohoku University School of Medicine

Address

1-1, Seiryo-machi, Aoba-ku, Sendai-shi, Miyagi

Tel

+81-227284105

Email

ec@rinri.hosp.tohoku.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

東北大学病院


Other administrative information

Date of disclosure of the study information

2024 Year 06 Month 06 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

2024 Year 06 Month 06 Day

Date of IRB


Anticipated trial start date

2024 Year 06 Month 06 Day

Last follow-up date

2028 Year 04 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

N/A


Management information

Registered date

2024 Year 06 Month 06 Day

Last modified on

2024 Year 06 Month 06 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000062207