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Metastatic Castration-Resistant Prostate CancerPhase 2NCT06972628

Treatment of Patients With Progressive mCRPC With 177Lu-PSMA-617

A Phase 2 study testing Administering Lutetium-177-PSMA-617 (PLUVICTO) in people with Metastatic Castration-Resistant Prostate Cancer and Prostate Cancer Patients With Bone Metastasis, run by Ebrahim S Delpassand at 1 site in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

The purpose of this study is to evaluate the safety and tolerability of Lutetium-177-PSMA-617 (PLUVICTO) in patients with metastatic castration-resistant prostate cancer (mCRPC) and extensive bone metastases, which appear as a "super scan" pattern on a bone scan. Read more about this study

Who is it for?
Ages 18 years and older, men only
What is being tested?
Administering Lutetium-177-PSMA-617 (PLUVICTO)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteUnited States
Study dates
23 May 2025to 1 Apr 2029
Phase
Phase 2
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

  • Ability to understand and sign an informed consent form (ICF).
  • Willingness and ability to comply with study requirements.
  • Age ≥18 years.
  • Presence of skeletal metastases with a superscan pattern on a 99mTc-MDP/HDP bone scan, defined by significantly increased skeletal radioisotope uptake relative to soft tissues and faint or absent renal activity.
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2.
  • Hemoglobin ≥9.0 g/dL.
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  • Platelet count ≥90 × 10⁹/L.
  • White blood cell count ≥2.0 × 10⁹/L, absolute neutrophil count (ANC) >1.5 × 10⁹/L.
  • o These hematologic criteria must be met without recent transfusions (within 28 days prior to the first study treatment) or growth factor support (within 21 days).
  • Serum/plasma creatinine ≤1.5 × upper limit of normal (ULN).
  • Histological, pathological, or cytological confirmation of prostate cancer.
  • Positive PSMA PET/CT scan showing at least one PSMA-positive metastatic lesion.
  • Castrate-level serum/plasma testosterone (<50 ng/dL or <1.7 nmol/L).
  • Prior treatment with at least one androgen receptor-axis-targeted therapy (ARAT).

Who cannot join

  • Prior treatment with radiopharmaceuticals (e.g., Strontium-89, Samarium-153, Rhenium- 186, Rhenium-188, Radium-223, hemi-body irradiation) within six months before start of treatment under this protocol.
  • Prior PSMA-targeted radioligand therapy.
  • Systemic anti-cancer therapy (e.g., chemotherapy, immunotherapy, monoclonal antibodies) within four weeks before screening visit.
  • Known hypersensitivity to PLUVICTO or its components.
  • Concurrent treatment with other cytotoxic chemotherapy, immunotherapy, radioligand therapy, or investigational therapy.
  • Renal impairment (estimated glomerular filtration rate <60 mL/min), hemoglobin <9 g/dL, ANC <1.5 × 10⁹/L, or platelets < 90 × 10⁹/L.
Show all 11Show fewer
  • History of CNS metastases unless treated and stable for 6 months, with no ongoing corticosteroid use.
  • Symptomatic or impending spinal cord compression.
  • Other malignancies impacting life expectancy or interfering with study assessments. Exceptions include non-melanoma skin cancer or superficial bladder cancer that has been adequately treated.
  • Major surgery within 30 days prior to enrollment.
  • Plans to conceive or father a child during treatment and up to six months post-treatment.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Susan Cork Therapy Coordinator contact

713-781-6200 ext. 3203

scork@exceldiagnostics.com

Nereyda Sauceda, Therapy Coordinator contact

713-781-6200 ext. 3246

nsauceda@exceldiagnostics.com

United States1 site, 1 recruiting
  • Excel Diagnostics & Nuclear Oncology Center

    Houston, Texas, 77042

    Susan Cork Therapy Coordinator, 713-781-6200 ext. 3203, scork@exceldiagnostics.com

    Nereyda Sauceda, Therapy Coordinator, 713-781-6200 ext. 3246, nsauceda@exceldiagnostics.com

    Recruiting

Other trials in United States

About this study

Official title: 177Lu-PSMA-617 (Pluvicto) for the Treatment of Patients With Progressive PSMA-Positive Metastatic Castration-Resistant Prostate Cancer (mCRPC) and Super Scan Bone Scan

The purpose of this study is to evaluate the safety and tolerability of Lutetium-177-PSMA-617 (PLUVICTO) in patients with metastatic castration-resistant prostate cancer (mCRPC) and extensive bone metastases, which appear as a "super scan" pattern on a bone scan.

Pluvicto is FDA-approved, but patients with super scan bone scans were previously excluded from the VISION clinical trial, leaving a knowledge gap.

Read more

The study will enroll up to 30 men with metastatic castration-resistant prostate cancer, with an initial dosing approach that differs from the standard dose.

The safety and tolerability of PLUVICTO will be evaluated in this study, with a focus on identifying the optimal dose for this population.

This study addresses an important gap in understanding how Pluvicto performs in mCRPC patients with super scan findings.

Read the detailed description

This clinical study investigates the safety and effectiveness of the FDA-approved drug Pluvicto (Lu-177-PSMA617).

It focuses on a unique group of patients with metastatic castration-resistant prostate cancer (mCRPC) who present with a "super scan" on bone scintigraphy-a pattern indicating widespread cancer in the bones.

These patients were excluded from prior trials like the VISION study, leaving a critical gap in clinical understanding.

The trial aims to identify the optimal safe dose of Pluvicto using a modified 3+3 dose-escalation method, beginning at a low dose that increases, and eventually reaching up to 200 mCi.

Participants will receive a total of six doses, spaced every 6 ± 1 weeks. Primary objectives include determining the maximum tolerated dose and monitoring safety using CTCAE version 5.0 criteria.

Efficacy will be evaluated through PSA level reductions based on PCWG3 guidelines.

Secondary endpoints include quality of life, radiologic response (RECIST v1.1), and overall survival.

Exploratory endpoints involve PSMA PET/CT imaging to measure treatment response through SUVmean and lesion changes.

The study includes up to 30 participants and will include expanded enrollment once the optimal dose is determined.

Routine lab tests (CBC, CMP, PSA, testosterone) and patient-reported side effects will be monitored throughout the study.

Long-term follow-up for survival and safety will continue every six months for up to five years.

Imaging (CT/MRI, bone scans, and optional PET/CT) will be performed at baseline, mid-treatment, end of treatment, and every three months post-treatment.

A complete or partial response, stable disease, or progression will be defined using both RECIST and PCWG3 guidelines.

Monthly PSA checks will continue for up to 24 months or until disease progression.

PLUVICTO is administered via IV infusion over 2-5 minutes during each session. Participants may discontinue due to progression, intolerable side effects, non-compliance, or other clinical decisions.

This study is essential in determining how to safely extend Pluvicto therapy to a previously unstudied and high-risk patient group.

Its results may expand access to this radioligand therapy and guide future treatment decisions in prostate cancer care.

Being tested
Administering Lutetium-177-PSMA-617 (PLUVICTO)
Keywords
Metastatic Castration-Resistant Prostate Cancer (mCRPC), super scan bone scan, Prostate Cancer patients with bone metastasis, prostate cancer (CRPC), Prostate cancer, Prostate cancer metastatic
Medical subject headings
Prostatic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Administering Lutetium-177-PSMA-617 (PLUVICTO)Drug

    The study begins with a first cohort of three participants, each receiving a dose of 100 millicuries (mCi). After administration, participants are monitored for any dose-limiting toxicities (DLTs) during a predefined observation window. If fewer than two participants experience a DLT in a given cohort, the dose will be escalated for the next group. The dose escalation schedule is structured as follows: the second cohort receives 130 mCi (a 30% increase), the third cohort receives 162.5 mCi (a 25% increase), and the fourth cohort receives 200 mCi, a dose that is already FDA-approved and clinically accepted for mCRPC. This stepwise escalation continues until the 200 mCi dose is reached, or until two or more DLTs are observed in any cohort. If that occurs, escalation stops immediately, and the maximum tolerated dose is considered to be the previous lower dose. This becomes the optimal tolerated dose (OTD). After identifying the OTD, additional participants will be enrolled for treatment.

Study groups in NCT06972628
Study groupRoleWhat they receive
Treatment ArmExperimentalNot described
Receives: Drug: Administering Lutetium-177-PSMA-617 (PLUVICTO)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Radiographic progression-free survival

    rPFS: Defined as the time from enrollment to radiographic disease progression, based on Prostate Cancer Working Group 3 (PCWG3) Guidelines (Scher et al., 2016), or death from any cause.

    Measured: From date of enrollment until the date of first documented radiographic disease progression or date of death from any cause, whichever came first, assessed up to 24 months.

  2. Overall Survival

    OS: Defined as the time from enrollment to death from any cause.

    Measured: From date of enrollment until the date of death from any cause, assessed up to 24 months.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 May 2025
  2. Study start23 May 2025 (estimated)
  3. Primary completion1 Apr 2027 (estimated)
  4. Study completion1 Apr 2029 (estimated)

Resources

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 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Model description
This study uses an FDA-approved drug (PLUVICTO). Therefore, it is not subject to phase categorization.
Masking
None (open label)
Enrolment
30 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06972628
Sponsor's protocol ID
Super-Lu-177
Status last verified
May 2025
First submitted
7 Apr 2025
Last updated
15 May 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No

Publications

  • Hartrampf PE, Weinzierl FX, Buck AK, Rowe SP, Higuchi T, Seitz AK, Kubler H, Schirbel A, Essler M, Bundschuh RA, Werner RA. Matched-pair analysis of [177Lu]Lu-PSMA I&T and [177Lu]Lu-PSMA-617 in patients with metastatic castration-resistant prostate cancer. Eur J Nucl Med Mol Imaging. 2022 Jul;49(9):3269-3276. doi: 10.1007/s00259-022-05744-6. Epub 2022 Mar 4.

    PubMed 35243517
  • Eisenhauer EA, Therasse P, Bogaerts J, Schwartz LH, Sargent D, Ford R, Dancey J, Arbuck S, Gwyther S, Mooney M, Rubinstein L, Shankar L, Dodd L, Kaplan R, Lacombe D, Verweij J. New response evaluation criteria in solid tumours: revised RECIST guideline (version 1.1). Eur J Cancer. 2009 Jan;45(2):228-47. doi: 10.1016/j.ejca.2008.10.026.

    PubMed 19097774
  • Banerjee SR, Pullambhatla M, Byun Y, Nimmagadda S, Green G, Fox JJ, Horti A, Mease RC, Pomper MG. 68Ga-labeled inhibitors of prostate-specific membrane antigen (PSMA) for imaging prostate cancer. J Med Chem. 2010 Jul 22;53(14):5333-41. doi: 10.1021/jm100623e.

    PubMed 20568777
  • Hope TA, Abbott A, Colucci K, Bushnell DL, Gardner L, Graham WS, Lindsay S, Metz DC, Pryma DA, Stabin MG, Strosberg JR. NANETS/SNMMI Procedure Standard for Somatostatin Receptor-Based Peptide Receptor Radionuclide Therapy with 177Lu-DOTATATE. J Nucl Med. 2019 Jul;60(7):937-943. doi: 10.2967/jnumed.118.230607.

    PubMed 31263080
  • Ahmadzadehfar H, Eppard E, Kurpig S, Fimmers R, Yordanova A, Schlenkhoff CD, Gartner F, Rogenhofer S, Essler M. Therapeutic response and side effects of repeated radioligand therapy with 177Lu-PSMA-DKFZ-617 of castrate-resistant metastatic prostate cancer. Oncotarget. 2016 Mar 15;7(11):12477-88. doi: 10.18632/oncotarget.7245.

    PubMed 26871285
  • Messiou C, Cook G, deSouza NM. Imaging metastatic bone disease from carcinoma of the prostate. Br J Cancer. 2009 Oct 20;101(8):1225-32. doi: 10.1038/sj.bjc.6605334. Epub 2009 Sep 29.

    PubMed 19789531
  • Caglar M, Tuncel M, Yildiz E, Karabulut E. Bone scintigraphy as a gatekeeper for the detection of bone metastases in patients with prostate cancer: comparison with Ga-68 PSMA PET/CT. Ann Nucl Med. 2020 Dec;34(12):932-941. doi: 10.1007/s12149-020-01529-9. Epub 2020 Sep 25.

    PubMed 32975741
  • Askari E, Shakeri S, Roustaei H, Fotouhi M, Sadeghi R, Harsini S, Vali R. Superscan Pattern on Bone Scintigraphy: A Comprehensive Review. Diagnostics (Basel). 2024 Oct 6;14(19):2229. doi: 10.3390/diagnostics14192229.

    PubMed 39410633
  • Manov JJ, Roth PJ, Kuker R. Clinical Pearls: Etiologies of Superscan Appearance on Fluorine-18-Fludeoxyglucose Positron Emission Tomography-Computed Tomography. Indian J Nucl Med. 2017 Oct-Dec;32(4):259-265. doi: 10.4103/ijnm.IJNM_56_17.

    PubMed 29142340
  • Manohar PR, Rather TA, Khan SH, Malik D. Skeletal Metastases Presenting as Superscan on Technetium 99m Methylene Diphosphonate Whole Body Bone Scintigraphy in Different Type of Cancers: A 5-Year Retro-prospective Study. World J Nucl Med. 2017 Jan-Mar;16(1):39-44. doi: 10.4103/1450-1147.181153.

    PubMed 28217018

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Administering Lutetium-177-PSMA-617 (PLUVICTO) in people with Metastatic Castration-Resistant Prostate Cancer and Prostate Cancer Patients With Bone Metastasis, run by Ebrahim S Delpassand at 1 site in United States.

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 14 inclusion and 11 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: looking for participants now, as of the sponsor's last update on 15 May 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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 Susan Cork Therapy Coordinator (713-781-6200 ext. 3203, scork@exceldiagnostics.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Radiographic progression-free survival (time frame: From date of enrollment until the date of first documented radiographic disease progression or date of death from any cause, whichever came first, assessed up to 24 months.). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06972628, which also lists 10 linked publications.

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 15 May 2025.

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Clinical Trial NCT06972628 | AzTrials