UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000052842
Receipt number R000060305
Scientific Title Longitudinal intervention study using interim treatment-free observation as the initial treatment strategy for stage T1c prostate cancer
Date of disclosure of the study information 2023/11/19
Last modified on 2023/11/19 18:40:45

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Basic information

Public title

Longitudinal intervention study using interim treatment-free observation as the initial treatment strategy for stage T1c prostate cancer

Acronym

Longitudinal intervention study for non-palpable prostate cancer using temporary observation without treatment as initial treatment strategy

Scientific Title

Longitudinal intervention study using interim treatment-free observation as the initial treatment strategy for stage T1c prostate cancer

Scientific Title:Acronym

Longitudinal intervention study for non-palpable prostate cancer using temporary observation without treatment as initial treatment strategy

Region

Japan


Condition

Condition

prostate cancer

Classification by specialty

Urology

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

Stage T1cN0M0 in prostate cancer patients with favorable biopsy findings, where the lesion is estimated to be small and highly differentiated based on pathological findings from systematic biopsy, temporary observation without treatment is the initial treatment. We will examine the validity of ``patient selection criteria'' and ``criteria for continuing/discontinuing non-treatment follow-up'' that are considered not to increase the risk of death from prostate cancer even if the strategy of active surveillance is implemented. We will continue to follow patients for as long as possible after the primary analysis to determine whether active surveillance does indeed increase the risk of death from prostate cancer. Furthermore, the patient's QOL (Quality of Life) will be evaluated to examine the usefulness of monitoring therapy.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2


Developmental phase

Phase II


Assessment

Primary outcomes

Proportion of patients with a PSA doubling time of more than 2 years at 6 months after enrollment among patients selected for active surveillance

Key secondary outcomes

1) Percentage of patients who met the pathological eligibility criteria at the time of enrollment as a result of re-biopsy among patients selected for active surveillance who underwent re-biopsy performed 13 months after enrollment
2) Percentage of patients who underwent total prostatectomy as the first treatment for prostate cancer within 6 months of enrollment who had a pathology diagnosis of Non Organ Confined Disease in the resected specimen.
3) Adverse events in patients receiving active treatment
4) Degree of decline in her QOL in patients choosing active surveillance and patients choosing active treatment
5) Overall survival time in patients who selected active surveillance and patients who selected active therapy
6) Metastasis-free survival time in patients who selected active surveillance and patients who selected active therapy


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

50 years-old <=

Age-upper limit

80 years-old >=

Gender

Male

Key inclusion criteria

PSA 20 ng/ml or less, Gleason score 3+3 or less, 2 positive cores or less , and maximum cancer occupancy (within positive cores) less than 50%

Key exclusion criteria

Patients with a history of cerebral infarction, unstable angina, diabetes uncontrolled by insulin, severe hypertension, or myocardial infarction within 6 months

Target sample size

100


Research contact person

Name of lead principal investigator

1st name Yoshiyuki
Middle name
Last name Kakehi

Organization

Kagawa university

Division name

Department of Urology, Faculty of Medicine

Zip code

761-0793

Address

1750-1, Ikenobe, Miki-cho, Kita-gun, Kagawa,Japan

TEL

0878912202

Email

yoshiyukikakehi@gmail.com


Public contact

Name of contact person

1st name Takuma
Middle name
Last name Kato

Organization

Kagawa university

Division name

Department of Urology, Faculty of Medicine

Zip code

761-0793

Address

1750-1, Ikenobe, Miki-cho, Kita-gun, Kagawa,Japan

TEL

0878912202

Homepage URL


Email

kato.takuma@kagawa-u.ac.jp


Sponsor or person

Institute

Kagawa University

Institute

Department

Personal name



Funding Source

Organization

none

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

kagawa university

Address

1750-1, Ikenobe, Miki-cho, Kita-gun, Kagawa,Japan

Tel

0878985111

Email

kenkyushien@kagawa-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

2023 Year 11 Month 19 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

134

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

Completed

Date of protocol fixation

2001 Year 12 Month 12 Day

Date of IRB

2002 Year 12 Month 12 Day

Anticipated trial start date

2002 Year 01 Month 01 Day

Last follow-up date

2023 Year 03 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

2023 Year 11 Month 19 Day

Last modified on

2023 Year 11 Month 19 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/icdr_e/ctr_view.cgi?recptno=R000060305


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name