UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000056983
Receipt number R000061902
Scientific Title Radiosensitization treatment using hydrogen peroxide for inoperable rectal cancer
Date of disclosure of the study information 2025/02/08
Last modified on 2025/02/08 18:41:48

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Basic information

Public title

Radiosensitization treatment using hydrogen peroxide for inoperable rectal cancer

Acronym

Radiosensitization treatment using hydrogen peroxide for inoperable rectal cancer

Scientific Title

Radiosensitization treatment using hydrogen peroxide for inoperable rectal cancer

Scientific Title:Acronym

RADIOSENSITIZATION TREATMENT FOR RECTAL CANCER

Region

Japan


Condition

Condition

inoperable rectal cancer

Classification by specialty

Gastroenterology

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

To evaluated the feasibility and safety of radiosensitization using hydrogen peroxide combined with radiation therapy in patients with unresectable rectal cancer.

Basic objectives2

Safety

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase

Phase I


Assessment

Primary outcomes

Evaluation of acute and late adverse events 1 and 6 months after completion of radiotherapy.

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 Maneuver

Interventions/Control_1

Radiosensitization was performed twice weekly in combination with RT. A gauze soaked in 3% hydrogen peroxide solution was inserted into the anus, ensuring firm contact with the lesion.

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

Patients with unresectable rectal cancer, who refused to undergo resection for rectal cancer, or who had recurrent rectal cancer were included in this study. Tumors must be histologically proven to be locally advanced rectal cancers, with a performance status of 0 or 1

Key exclusion criteria

N/A

Target sample size

13


Research contact person

Name of lead principal investigator

1st name Anneyuko
Middle name I
Last name Saito

Organization

Juntendo University Faculty of Medicine

Division name

Department of Radiation Oncology

Zip code

279-0021

Address

2-1-1 omioka Urayasushi Chibaken

TEL

047-353-3111

Email

anne@juntendo.ac.jp


Public contact

Name of contact person

1st name Anneyuko
Middle name I
Last name Saito

Organization

Juntendo University Faculty of Medicine

Division name

Department of Radiation Oncology

Zip code

279-0021

Address

2-1-1 omioka Urayasushi Chibaken

TEL

047-353-3111

Homepage URL


Email

anne@juntendo.ac.jp


Sponsor or person

Institute

Juntendo University Faculty of Medicine

Institute

Department

Personal name



Funding Source

Organization

N/A

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

Juntendo University Faculty of Medicine

Address

2-1-1 Bunkyoku Hongo Tokyo

Tel

03-3813-3111

Email

https://jcrtc.juntendo.ac.jp/contact-researcher/


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 02 Month 08 Day


Related information

URL releasing protocol

https://pubmed.ncbi.nlm.nih.gov/39091416/

Publication of results

Published


Result

URL related to results and publications

https://pubmed.ncbi.nlm.nih.gov/39091416/

Number of participants that the trial has enrolled

13

Results

Treatment was well tolerated, with no acute grade 3 or worse events noted. No notable late adverse events, beyond 6 months, were observed at the end of the analysis. All patients experienced pain relief, hemostatic effects and tumor shrinkage. Therefore, the use of a hydrogen peroxide solution-soaked gauze in the rectum may be a promising option for patients with inoperable rectal tumors.

Results date posted

2025 Year 02 Month 08 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics

Thirteen patients met the inclusion criteria and agreed to participate. Out of the patients, 7 underwent chemoradiotherapy with tegafur gimeracil oteracil potassium and all the other underwent radiotherapy alone.

Participant flow

Radiosensitization treatment was performed twice a week to avoid severe adverse events. hydrogen peroxide was used twice a week in combination with RT. Here immediately before RT, gauze soaked in 3% hydrogen peroxide solution was inserted into the anus, ensuring firm contact with the lesion. After that radiotherapy was performed.

Adverse events

Treatment was well tolerated, with no acute grade 3 or worse events noted, and no patient developed rectal fistula, necrosis, obstruction, perforation, stenosis, ulcer or retroperitoneal hemorrhage. No notable late adverse events, beyond 6 months, were observed at the end of the analysis.

Outcome measures

Adverse effect and treatment effect

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Completed

Date of protocol fixation

2014 Year 04 Month 10 Day

Date of IRB

2014 Year 05 Month 10 Day

Anticipated trial start date

2014 Year 05 Month 10 Day

Last follow-up date

2023 Year 12 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

2025 Year 02 Month 08 Day

Last modified on

2025 Year 02 Month 08 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000061902