Patients With Metastatic Castration-resistant Prostate CancerGaLuProNCT06136377
Evaluation of the Concordance Between Pre-therapy Dosimetry Performed From 68Ga-PSMA-11 Dynamic PET and Post-treatment Dosimetry of 177Lu-PSMA-617 Vectorized Internal Radiotherapy in Patients With Metastatic Prostate Cancer Resistant to Hormonal Castration.
A study testing 177Lu-PSMA-617 PET scan in people with Patients With Metastatic Castration-resistant Prostate Cancer, run by Centre Georges Francois Leclerc.
Trial summary
Patients undergo three diagnostic PET scans: 18F-FDG PET scan / 18F-Choline PET scan and 68Ga-PSMA PET scan. Following the diagnostic PET scans, and if patients' eligibility for 177Lu-PSMA-617 IVR treatment is confirmed, SPECT acquisitions will be performed during the first treatment course at 5h, 24h, 4 days and 8… Read more about this study
- Who is it for?
- Ages 18 years and older, men only
- Conditions the study is for
- Patients With Metastatic Castration-resistant Prostate Cancer
- What is being tested?
- 177Lu-PSMA-617 PET scan
- Type of treatment
- Injection or infusion, Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 35 participants
- Where
- No sites listed yet
- Study dates
- 31 Jan 2024to 31 Jan 2027
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- Men only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients over 18 with histologically proven metastatic prostate cancer treated with taxane chemotherapy plus at least one second-generation hormone therapy and resistant to hormonal castration (eligibility criterion for 177Lu-PSMA IVR treatment).
- Patient referred to CGFL for standard disease management with indication for 18F-FDG PET, 18F-Choline PET and 68Ga-PSMA-11 PET to validate patient's eligibility for 177Lu-PSMA-617 IVR treatment.
- ECOG ≤ 2
- Life expectancy ≥ 6 months
- No unacceptable medical or radiological risk for isolation in a nuclear medicine therapy unit.
- Patient informed about the study, able to understand the study constraints and sign the consent form.
- Patient affiliated to the social security system or equivalent
Who cannot join
- Inability of the patient to maintain a lying position, without moving, for more than 1 hour (1 hour 20 minutes of acquisition for the dynamic PET acquisition specific to the GaLuPro study).
- Allergy to 68Ga-PSMA-11 or 177Lu-PSMA-617
- Contraindications to receiving 177Lu-PSMA IVR treatment and/or performing the imaging tests required by the protocol (patient with pacemaker or defibrillator).
- Urinary tract obstruction or hydronephrosis. Patients with a diagnosis or high risk of urinary retention and/or fitted with a urinary catheter and/or with incontinence making urine collection impossible or PET examinations impossible.
- Patient refusal to participate in study
- Impossibility for the patient to undergo medical monitoring and compliance with treatment and trial procedures for geographical, social or psychological reasons.
- Persons deprived of their liberty or under guardianship (including curatorship)
Trial locations and contacts
No sites are listed yet. Contact the study team or a site near you to ask about taking part.
About this study
Patients undergo three diagnostic PET scans: 18F-FDG PET scan / 18F-Choline PET scan and 68Ga-PSMA PET scan. Following the diagnostic PET scans, and if patients' eligibility for 177Lu-PSMA-617 IVR treatment is confirmed, SPECT acquisitions will be performed during the first treatment course at 5h, 24h, 4 days and 8 days for dosimetric control.
The patient will then return to the nuclear medicine department to undergo SPECT/CT (3 FOV) acquisitions using the same methods as those presented above and recommended in the standard management at : D+24h post-injection, D+4d post-injection and D+8d post-injection No further research-specific acts or procedures will be performed at the end of the first treatment course.
Continuity of treatment will be carried out in accordance with standard management and treatment requirements and modalities, as will clinical, biological and radiological follow-up.
Read the detailed description
Internal vectored radiotherapy (IVRT) for mCPRCs is emerging as a new treatment line of choice. Radiolabeled molecules with a high affinity for PSMA have emerged as promising theranostic radiopharmaceuticals for the management of mCPRCs.
The 177Lu-PSMA-617 had substantial anti-tumor effects, including a beneficial effect on survival in cases of mCRPC. With regard to the choice of diagnostic radiopharmaceutical, which must be homologous to the therapeutic agent, 68Ga-PSMA-11 PET/CT showed significantly higher sensitivity and specificity than traditional radiological imaging for detecting lymph node or bone metastases in prostate cancer. The evaluation of 177Lu-PSMA-617 as a new radiopharmaceutical also requires a dosimetry step, which is essential for studying the "injected activity - therapeutic response - adverse effects/toxicity" relationship.
The aim of this study is to carry out a dynamic 68Ga-PSMA-11 PET acquisition in order to evaluate pre-therapy absorbed doses and to compare these with post-therapy dosimetry carried out during the first course of 177Lu-PSMA-617 treatment using SPECT acquisitions.
This research is part of standard management and will not modify the activities of radiopharmaceuticals administered during diagnostic PET examinations with 18F-FDG, 18F-Choline and 68Ga-PSMA-11 or during treatment with 177Lu-PSMA-617.
Patients undergo three diagnostic PET scans: 18F-FDG PET scan / 18F-Choline PET scan and 68Ga-PSMA PET scan. Following the diagnostic PET scans, and if patients' eligibility for 177Lu-PSMA-617 IVR treatment is confirmed, SPECT acquisitions will be performed during the first treatment course at 5h, 24h, 4 days and 8 days for dosimetric control.
The patient will then return to the nuclear medicine department to undergo SPECT/CT (3 FOV) acquisitions using the same methods as those presented above and recommended in the standard management at : D+24h post-injection, D+4d post-injection and D+8d post-injection No further research-specific acts or procedures will be performed at the end of the first treatment course.
Continuity of treatment will be carried out in accordance with standard management and treatment requirements and modalities, as will clinical, biological and radiological follow-up.
- Being tested
- 177Lu-PSMA-617 PET scan
- Keywords
- nuclear medicine, prostate cancer, taxane chemotherapy, 68Ga-PSMA-11
- Medical subject headings
- Prostatic Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
177Lu-PSMA-617 PET scanRadiation
Patients then begin their first course of treatment an average of 2 months after the 68Ga-PSMA-11 PET scan, with IVR usually divided into a total of 6 courses. During the first course of treatment, patients undergo an initial SPECT scan 5h (±1h) post-injection, and return to the nuclear medicine department for three further SPECT scans, at 24h, 4 days and 8 days post-injection.
| Study group | Role | What they receive |
|---|---|---|
| RIV treatment with 177Lu-PSMA-617. | Experimental | Not described Receives: Radiation: 177Lu-PSMA-617 PET scan |
What is being measured
The primary outcome is the main question the study is designed to answer.
Study the correlation between pre- and post-treatment estimates of absorbed doses to organs at risk
Pre-treatment absorbed dose estimates will be determined during 68Ga-PSMA-11 PET acquisitions. Post-treatment absorbed dose estimates will be determined using 177Lu-PSMA-617 SPECT acquisitions.
Measured: During 12 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Nov 2023
- Study start31 Jan 2024 (estimated)
- Primary completion31 Jan 2027 (estimated)
- Study completion31 Jan 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Patients With Metastatic Castration-resistant Prostate CancerStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 35 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Centre Georges Francois Leclerc
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06136377
- Sponsor's protocol ID
- 2023-A02235-40
- Acronym
- GaLuPro
- Status last verified
- Nov 2023
- First submitted
- 13 Nov 2023
- Last updated
- 18 Nov 2023
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 18 Nov 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of the Concordance Between Pre-therapy Dosimetry Performed From 68Ga-PSMA-11 Dynamic PET and Post-treatment Dosimetry of 177Lu-PSMA-617 Vectorized Internal Radiotherapy in Patients With Metastatic Prostate Cancer Resistant to Hormonal Castration.
- ClinicalTrials.gov ID
- NCT06136377
- Acronym / sponsor ID
- GaLuPro / 2023-A02235-40
- Keywords
- nuclear medicine, prostate cancer, taxane chemotherapy, 68Ga-PSMA-11
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 35 participants (estimated)
- Lead sponsor
- Centre Georges Francois LeclercUniversity, hospital or other
- Study start
- 31 Jan 2024 (estimated)
- Primary completion
- 31 Jan 2027 (estimated)
- Study completion
- 31 Jan 2027 (estimated)
- First posted
- 18 Nov 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Patients undergo three diagnostic PET scans: 18F-FDG PET scan / 18F-Choline PET scan and 68Ga-PSMA PET scan. Following the diagnostic PET scans, and if patients' eligibility for 177Lu-PSMA-617 IVR treatment is confirmed, SPECT acquisitions will be performed during the first treatment course at 5h, 24h, 4 days and 8 days for dosimetric control.
The patient will then return to the nuclear medicine department to undergo SPECT/CT (3 FOV) acquisitions using the same methods as those presented above and recommended in the standard management at : D+24h post-injection, D+4d post-injection and D+8d post-injection No further research-specific acts or procedures will be performed at the end of the first treatment course.
Continuity of treatment will be carried out in accordance with standard management and treatment requirements and modalities, as will clinical, biological and radiological follow-up.
Detailed description
Internal vectored radiotherapy (IVRT) for mCPRCs is emerging as a new treatment line of choice. Radiolabeled molecules with a high affinity for PSMA have emerged as promising theranostic radiopharmaceuticals for the management of mCPRCs.
The 177Lu-PSMA-617 had substantial anti-tumor effects, including a beneficial effect on survival in cases of mCRPC. With regard to the choice of diagnostic radiopharmaceutical, which must be homologous to the therapeutic agent, 68Ga-PSMA-11 PET/CT showed significantly higher sensitivity and specificity than traditional radiological imaging for detecting lymph node or bone metastases in prostate cancer. The evaluation of 177Lu-PSMA-617 as a new radiopharmaceutical also requires a dosimetry step, which is essential for studying the "injected activity - therapeutic response - adverse effects/toxicity" relationship.
The aim of this study is to carry out a dynamic 68Ga-PSMA-11 PET acquisition in order to evaluate pre-therapy absorbed doses and to compare these with post-therapy dosimetry carried out during the first course of 177Lu-PSMA-617 treatment using SPECT acquisitions.
This research is part of standard management and will not modify the activities of radiopharmaceuticals administered during diagnostic PET examinations with 18F-FDG, 18F-Choline and 68Ga-PSMA-11 or during treatment with 177Lu-PSMA-617.
Patients undergo three diagnostic PET scans: 18F-FDG PET scan / 18F-Choline PET scan and 68Ga-PSMA PET scan. Following the diagnostic PET scans, and if patients' eligibility for 177Lu-PSMA-617 IVR treatment is confirmed, SPECT acquisitions will be performed during the first treatment course at 5h, 24h, 4 days and 8 days for dosimetric control.
The patient will then return to the nuclear medicine department to undergo SPECT/CT (3 FOV) acquisitions using the same methods as those presented above and recommended in the standard management at : D+24h post-injection, D+4d post-injection and D+8d post-injection No further research-specific acts or procedures will be performed at the end of the first treatment course.
Continuity of treatment will be carried out in accordance with standard management and treatment requirements and modalities, as will clinical, biological and radiological follow-up.
Study design
- Primary purpose
- Other
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| RIV treatment with 177Lu-PSMA-617. | Experimental | Radiation: 177Lu-PSMA-617 PET scan |
Who may qualify
- Ages
- 18 years and older
- Sex
- Male only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (7 listed)
- Patients over 18 with histologically proven metastatic prostate cancer treated with taxane chemotherapy plus at least one second-generation hormone therapy and resistant to hormonal castration (eligibility criterion for 177Lu-PSMA IVR treatment).
- Patient referred to CGFL for standard disease management with indication for 18F-FDG PET, 18F-Choline PET and 68Ga-PSMA-11 PET to validate patient's eligibility for 177Lu-PSMA-617 IVR treatment.
- ECOG ≤ 2
- Life expectancy ≥ 6 months
- No unacceptable medical or radiological risk for isolation in a nuclear medicine therapy unit.
Key exclusion criteria (7 listed)
- Inability of the patient to maintain a lying position, without moving, for more than 1 hour (1 hour 20 minutes of acquisition for the dynamic PET acquisition specific to the GaLuPro study).
- Allergy to 68Ga-PSMA-11 or 177Lu-PSMA-617
- Contraindications to receiving 177Lu-PSMA IVR treatment and/or performing the imaging tests required by the protocol (patient with pacemaker or defibrillator).
- Urinary tract obstruction or hydronephrosis. Patients with a diagnosis or high risk of urinary retention and/or fitted with a urinary catheter and/or with incontinence making urine collection impossible or PET examinations impossible.
- Patient refusal to participate in study
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| 177Lu-PSMA-617 PET scanPatients then begin their first course of treatment an average of 2 months after the 68Ga-PSMA-11 PET scan, with IVR usually divided into a total of 6 courses. During the first course of treatment, patients undergo an initial SPECT scan 5h (±1h) post-injection, and return to the nuclear medicine department for three further SPECT scans, at 24h, 4 days and 8 days post-injection. | Radiation | RIV treatment with 177Lu-PSMA-617. |
Primary outcome
Study the correlation between pre- and post-treatment estimates of absorbed doses to organs at risk
Time frame: During 12 months
Pre-treatment absorbed dose estimates will be determined during 68Ga-PSMA-11 PET acquisitions. Post-treatment absorbed dose estimates will be determined using 177Lu-PSMA-617 SPECT acquisitions.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 Nov 2023.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Questions about this trial
What is this clinical trial studying?
A study testing 177Lu-PSMA-617 PET scan in people with Patients With Metastatic Castration-resistant Prostate Cancer, run by Centre Georges Francois Leclerc.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 7 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 18 Nov 2023. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Clément DROUET, Dr (03.80.73.75.00 ext. +33, CLDrouet@cgfl.fr), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Study the correlation between pre- and post-treatment estimates of absorbed doses to organs at risk (time frame: During 12 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Nov 2023.