UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062711
Receipt number R000071802
Scientific Title Establishment of a Dosimetry Protocol Using Post Lutetium (177Lu) vipivotide tetraxetan Treatment SPECT/CT Imaging
Date of disclosure of the study information 2026/08/27
Last modified on 2026/08/27 14:48:43

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Basic information

Public title

Establishment of a Dosimetry Protocol Using Post Pluvicto Treatment SPECT/CT Imaging

Acronym

SPECT/CT Imaging of Pluvicto Treatment

Scientific Title

Establishment of a Dosimetry Protocol Using Post Lutetium (177Lu) vipivotide tetraxetan Treatment SPECT/CT Imaging

Scientific Title:Acronym

Establishment of a Dosimetry Protocol Using Post PSMA Treatment SPECT/CT Imaging

Region

Japan


Condition

Condition

Castration-resistant prostate cancer

Classification by specialty

Urology

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

To evaluate whether the distribution of the radiopharmaceutical used for treatment actually matches that observed on the PSMA-PET scan performed to determine treatment eligibility.

Basic objectives2

Bio-availability

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Whole-body scintigraphy and SPECT/CT images of uptake sites will be acquired once or twice, specifically 24 hours and between 48 and 120 hours after the completion of Lutetium (177Lu) vipivotide tetraxetan administration. Quantitative assessment will be performed and compared with PSMA-PET.

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

Diagnosis

Type of intervention

Other

Interventions/Control_1

Radiation exposure associated with the concurrent use of a CT scan for fusion imaging during SPECT acquisition.

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

18 years-old <=

Age-upper limit


Not applicable

Gender

Male

Key inclusion criteria

Patients treated with Lutetium (177Lu) vipivotide tetraxetan

Key exclusion criteria

Patients unable to maintain the required body position for the necessary duration
Patients from whom consent cannot be obtained directly

Target sample size

10


Research contact person

Name of lead principal investigator

1st name Mana
Middle name
Last name Yoshimura

Organization

Tokyo Medical University

Division name

Department of Radiology

Zip code

160-0023

Address

6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo

TEL

+81-333426111

Email

radiolmn@tokyo-med.ac.jp


Public contact

Name of contact person

1st name Mana
Middle name
Last name Yoshimura

Organization

Tokyo Medical University

Division name

Department of Radiology

Zip code

160-0023

Address

6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo

TEL

+81-333426111

Homepage URL


Email

radiolmn@tokyo-med.ac.jp


Sponsor or person

Institute

Tokyo Medical University

Institute

Department

Personal name

Mana Yoshimura


Funding Source

Organization

Tokyo Medical 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

Tokyo Medical University

Address

6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo

Tel

+81-333426111

Email

adm_irb@tokyo-med.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

東京医科大学病院


Other administrative information

Date of disclosure of the study information

2026 Year 08 Month 27 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

Enrolling by invitation

Date of protocol fixation

2026 Year 07 Month 29 Day

Date of IRB

2026 Year 07 Month 29 Day

Anticipated trial start date

2026 Year 08 Month 10 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



Management information

Registered date

2026 Year 08 Month 27 Day

Last modified on

2026 Year 08 Month 27 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071802