UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000060576
Receipt number R000069286
Scientific Title A prospective study to assess the therapeutic effect of 177Lu-PSMA in patients with metastatic castration-resistant prostate cancer
Date of disclosure of the study information 2026/02/04
Last modified on 2026/02/04 12:08:44

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Basic information

Public title

A prospective study to assess the therapeutic effect of 177Lu-PSMA in patients with metastatic castration-resistant prostate cancer

Acronym

A prospective study to assess the therapeutic effect of 177Lu-PSMA in patients with metastatic castration-resistant prostate cancer

Scientific Title

A prospective study to assess the therapeutic effect of 177Lu-PSMA in patients with metastatic castration-resistant prostate cancer

Scientific Title:Acronym

A prospective study to assess the therapeutic effect of 177Lu-PSMA in patients with metastatic castration-resistant prostate cancer

Region

Japan


Condition

Condition

metastatic castration resistant prostate cancer

Classification by specialty

Urology

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

To analyze the efficacy of SPECT/CT images taken after LuPSMA treatment to assess treatment efficacy.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2


Developmental phase

Not applicable


Assessment

Primary outcomes

radiographic progression free survival; rPFS

Key secondary outcomes

Overall survival from the start of LuPSMA treatment
Response assessment after completion of LuPSMA treatment (CR, PR, SD, PD)
Side effects assessment
Tumor marker changes


Base

Study type

Interventional


Study design

Basic design

Single arm

Randomization

Non-randomized

Randomization unit


Blinding

Open -no one is blinded

Control

Uncontrolled

Stratification

NO

Dynamic allocation

NO

Institution consideration

Institution is not considered as adjustment factor.

Blocking

NO

Concealment

No need to know


Intervention

No. of arms

1

Purpose of intervention

Diagnosis

Type of intervention

Device,equipment

Interventions/Control_1

The study subjects are mCRPC patients who have undergone LuPSMA therapy. After admission to a dedicated treatment room, patients receive the prescribed dose of LuPSMA on the day of administration and are followed overnight by observation. The following day, once the dose is confirmed to be acceptable for discharge, images are taken using a SPECT/CT scan in our hospital's radioisotope (RI) laboratory to capture images of the lesion using gamma rays emitted by LuPSMA. This will be performed after the first six treatments to assess whether it is useful for assessing treatment efficacy. Conventional tumor markers and imaging tests (CT, MRI, bone scan) will be performed at standard intervals, and comparisons with these will also be conducted.

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

Key inclusion criteria

(1) Adult men aged 20 years or older
(2) Patients pathologically diagnosed with prostate cancer
(3) Patients with mCRPC undergoing LuPSMA therapy at our hospital
(4) Patients who provide written informed consent to participate in this study

Key exclusion criteria

(1) Patients who do not consent to this study or who refuse to participate

Target sample size

30


Research contact person

Name of lead principal investigator

1st name Yoshiyuki
Middle name
Last name Miyazawa

Organization

Gunma University Hospital

Division name

Department of Urology

Zip code

3718511

Address

3-39-22 Showa-Machi, Maebashi, Gunma JAPAN

TEL

0272208306

Email

miya.yoshi@gunma-u.ac.jp


Public contact

Name of contact person

1st name Yoshiyuki
Middle name
Last name Miyazawa

Organization

Gunma University Hospital

Division name

Department of Urology

Zip code

3718511

Address

3-39-22 Showa-Machi, Maebashi, Gunma JAPAN

TEL

0272208306

Homepage URL


Email

miya.yoshi@gunma-u.ac.jp


Sponsor or person

Institute

Gunma University

Institute

Department

Personal name

Yoshiyuki Miyazawa


Funding Source

Organization

Gunma University

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Gunma University Hospital Clinical Research Review Committee

Address

3-39-15 Showa-Machi, Maebashi, Gunma JAPAN

Tel

027-220-8740

Email

irb-jimukk-ciru@ml.gunma-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

2026 Year 02 Month 04 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

Open public recruiting

Date of protocol fixation

2026 Year 02 Month 04 Day

Date of IRB

2026 Year 02 Month 04 Day

Anticipated trial start date

2026 Year 02 Month 04 Day

Last follow-up date

2032 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 02 Month 04 Day

Last modified on

2026 Year 02 Month 04 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000069286