Prognostic Value of 177Lutetium-PSMA Single Photon Emission Tomography and Timing of Response

Trial statusNot yet recruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18+
SponsorCentral Hospital, Nancy, France

About this trial

177Lutetium-PSMA-617 is an established treatment for patients with metastatic castration-resistant prostate cancer (mCRPC). Early response assessment is critical for optimizing patient management. Response Evaluation Criteria in Prostate Imaging (RECIP) 1.0, initially developed for Positon Emission Tomography (PET) with 68Ga-PSMA, have demonstrated prognostic value, particularly after two treatment cycles. Recent studies suggest that SPECT at cycle 2 provides prognostic information, although it reflects only the first treatment cycle, whereas PET-based RECIP, assessed after cycle 2, captures the effect of two cycles. This study aims to evaluate the prognostic value of quantitative 177Lu-PSMA-SPECT biomarkers and determine the optimal timing for RECIP-based assessment.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Patients with metastatic castration-resistant cancer who received at least two cycles of 177Lu-PSMA

Disqualifiers

Patients who refused to have their data used for research purposes

Trial population

Patients with metastatic castration-resistant cancer who received at least two cycles of 177Lu-PSMA

Trial design

Design model

Other

Time perspective

Retrospective

Treatments tested in this trial

Not listed

Trial groups

No trial groups listed

Trial outcomes

Primary outcomes

1

To measure the Standardized Uptake Value of activity at the tumor lesion on 177Lu-PSMA-SPECT for the pronostic value of scintigraphy post-treatment

Analysis of Standardized Uptake value

Time frame
7 days
2

To measure of total tumor activity at the tumor lesion on 177Lu-PSMA-SPECT for the pronostic value of scintigraphy post-treatment

Analysis of Total Tumor Activity

Time frame
7 days
3

To measure the tumor volume at the tumor lesion on 177Lu-PSMA-SPECT for the pronostic value of scintigraphy post-treatment

Analysis of Tumor Volume

Time frame
7 days

Secondary outcomes

Other outcomes

Locations

This trial has no locations.

Sponsors and contacts

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